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Corrected Protocol Update #2
01/15/2015
ALLIANCE FOR CLINICAL TRIALS IN ONCOLOGY
_________________________________________
PROTOCOL UPDATE TO CALGB 40903
_________________________________________
PHASE II STUDY OF NEOADJUVANT LETROZOLE FOR POSTMENOPAUSAL WOMEN
WITH ESTROGEN RECEPTOR POSITIVE DUCTAL CARCINOMA IN SITU (DCIS)
An Alliance trial conducted by CALGB* and open only to CALGB, ACOSOG and NCCTG sites
American College of Radiation Imaging Network Core Imaging Laboratory (ACRIN) prequalification for
breast MRI acquisition is a requirement for institutions enrolling patients on this protocol
Letrozole for this study will be supplied and distributed by the Division of Cancer Prevention (DCP) NCI
X
Update:
Status Change:
Eligibility changes
Activation
Therapy / Dose Modifications / Study Calendar changes
Closure
Informed Consent changes
Suspension / temporary closure
Scientific / Statistical Considerations changes
Reactivation
Data Submission / Forms changes
X
Editorial / Administrative changes
Other :
No IRB approval of this amendment is required.
Please follow your local IRB guidelines.
UPDATES TO PROTOCOL:
• In keeping with new DCP PIO requirements, the name of the lead group on the title page of the
protocol has been updated from “Cancer and Leukemia Group B” to “Alliance for Clinical Trials in
Oncology.”
• The NCTN participating groups have been added to the lower left of the protocol cover page.
A replacement protocol document has been issued.
____________________________________________________________
ATTACH TO THE FRONT OF EVERY COPY OF THIS PROTOCOL
__________________________________________________________________________
Activation Date: 02/15/12
Includes Update #2
ALLIANCE FOR CLINICAL TRIALS IN ONCOLOGY
CALGB 40903
PHASE II STUDY OF NEOADJUVANT LETROZOLE FOR POSTMENOPAUSAL WOMEN
WITH ESTROGEN RECEPTOR POSITIVE DUCTAL CARCINOMA IN SITU (DCIS)
An Alliance trial conducted by CALGB* and open only to CALGB, ACOSOG and NCCTG sites
American College of Radiation Imaging Network Core Imaging Laboratory (ACRIN) prequalification
for breast MRI acquisition is a requirement for institutions enrolling patients on this protocol
Letrozole for this study will be supplied and distributed by the Division of Cancer Prevention (DCP) NCI.
Study Chair
E. Shelley Hwang, MD, MPH
Duke University Medical Center
Seeley G. Mudd Building, Suite # 465
10 Bryan Searle Drive
Durham, NC 27710
Phone: 919-684-6849 Fax: 919-684-6044
[email protected]
Study Co- Chair
Maura Dickler, M.D.
Tel: 646-888-4560 Fax: 646-888-4555
[email protected]
Correlative Science Co-Chair
Nancy DeMore, MD
Tel: 919-966-5221
[email protected]
Pathology Co-Chair
Baljit Singh, M.D.
Tel: 212-263-0136
[email protected]
Correlative Science Co-Chair
Matthew J. Ellis, M.B., Ph.D.
Tel: 314-996-5569
[email protected]
Imaging Co-Chair
Nola Hylton, Ph.D.
Tel: 415-476-8856
[email protected]
Breast Committee Co-Chairs
Clifford A. Hudis, M.D. Eric P. Winer, M.D.
Tel: 646-888-4551
Tel: 617-632-3800
[email protected]
[email protected]
Surgery Committee Chair
Leslie J. Kohman, M.D.
Tel: 315-464-6304
[email protected]
Faculty Statistician
Donald A. Berry, Ph.D
Tel: 713-794-4141
[email protected]
PET Faculty Statistician
Kouros Owzar, Ph.D
Tel: 919-681-8505
[email protected]
Staff Statistician
Connie T. Cirrincione, M.S.
Tel: 919-681-5404
[email protected]
Correlative Science Staff
Statistician
Brandelyn Pitcher, M.S.
Tel: 919-681-6887
[email protected]
Data Coordinator
Eleanor Leung, Ph,D
Tel: 919-668-9380
[email protected]
Protocol Coordinator
Heather Becker
Tel: 773-834-2546
[email protected]
Participating Organization: ALLIANCE/ Alliance for Clinical Trials in Oncology
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CALGB 40903
Study Contacts
CALGB Central Office
230 West Monroe Street, Suite 2050
Chicago, IL 60606-4703
Tel: 773-702-9171
Fax: 312-345-0117
www.calgb.org
Alliance Biorepository at Ohio State University
The Ohio State University
Innovation Centre
2001 Polaris Parkway
Columbus, OH 43240
Tel: 614-293-7073 Fax: 614-293-7967
CALGB Statistical Center
Hock Plaza
2424 Erwin Road, Suite 802
Durham, NC 27705
Tel: 919-668-9348
Data Operations Fax: 919-668-9348
Biostatistics Fax: 919-681-8028
CALGB Patient Registration
Tel: 919-668-9396
Fax: 919-668-9397
CALGB 40903 Pharmacy Liaison
Brenda Gebhart, RPh
Missouri Baptist Medical Center
Tel: 314-996-5012 Fax: 314-996-5172
[email protected]
American College of Radiology Imaging Network
MRI Core Laboratory
1818 Market Street, 16th Floor
Philadelphia, PA 19103
Lisa Cimino, Imaging Specialist
Tel: 215-574-3243
[email protected]
Deborah Harbison, Project Manager
Tel: 215-940-8914
[email protected]
ACRIN TRIAD Support
Tel: 215-940-8820
[email protected]
CALGB 40903 Nursing Liaison
Kathy J. Klinger, RN, MSN, NP-BC, AOCN
Hematology Oncology Assoc. of Central New York
Tel: 315-472-7504
[email protected]
UCSF Breast MRI Research Laboratory
Breast Imaging Research Group UCSF Dept. of Radiology &
Biomedical Imaging
1600 Divisadero St.
Suite C201, Box 1667 San Francisco, CA 94115
Sachiko Suzuki, Research Associate
Tel: 415-885-3777 Fax: 415-885-3884
[email protected]
In office Monday, Wednesday, Friday 9:00-5:00 PT
For urgent matters, please contact Krysta Banfield
Tel: 415-885-3762 [email protected]
or
Margarita Watkins
Tel: 415-476-0734 margarita.watkins @ucsf.edu
CANCER TRIALS SUPPORT UNIT (CTSU) ADDRESS AND CONTACT INFORMATION
To submit site registration
documents:
CTSU Regulatory Office
1818 Market Street, Suite 1100
Philadelphia, PA 19103
Phone – 1-866-651-CTSU
Fax – 215-569-0206
For patient enrollments:
Submit study data directly to the Lead Cooperative
Group unless otherwise specified in the protocol:
CALGB Statistical Center
Hock Plaza
2424 Erwin Road, Suite 802
Durham, NC 27705
Please refer to the patient
enrollment section for
instructions on using the
OPEN system.
Tel: 919-668-9350
Data Operations Fax: 919-668-9348
Teleform Fax: 919-416-4990
Sites should submit Teleforms via Fax or Mail.
Do not submit study data or forms to CTSU Data
Operations. Do not copy the CTSU on data submissions.
The study protocol and all related forms and documents must be downloaded from the protocol-specific Web page of the
CTSU Member Web site located at https://www.ctsu.org. Sites must use the current form version and adhere to the
instructions and submission schedule outlined in the protocol.
CTSU sites should follow procedures outlined in the protocol for Site registration, Patient Enrollment, Adverse Event
Reporting, Data Submission (including ancillary studies), and Drug Procurement.
For patient eligibility or treatment-related questions contact the Study PI of the Coordinating Group.
For questions unrelated to patient eligibility, treatment, or data submission contact the CTSU Help Desk by phone or email: CTSU General Information Line – 1-888-823-5923, or [email protected]. All calls and correspondence will be
triaged to the appropriate CTSU representative.
For detailed information on the regulatory and monitoring procedures for CTSU sites please review the CTSU
Regulatory and Monitoring Procedures policy located on the CTSU members’ website https://www.ctsu.org
The CTSU Web site is located at
https://www.ctsu.org
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CALGB 40903
PHASE II STUDY OF NEOADJUVANT LETROZOLE FOR POSTMENOPAUSAL WOMEN
WITH ESTROGEN RECEPTOR POSITIVE DUCTAL CARCINOMA IN SITU (DCIS)
Letrozole for this study will be supplied and distributed for this study by the Division of Cancer Prevention
(DCP), NCI.
Patient Eligibility
Required Initial Laboratory Values
Pathologic confirmation of DCIS rendered on core biopsy of the
female breast, without invasive cancer. Microinvasion allowed.
ANC ≥ 1,000/µl
All patients must have a clip placed either, the time of the diagnostic
biopsy or at the time of the baseline MRI prior to the start of treatment.
Serum Creatinine < 1.7 mg/dL
Patient should have diagnostic tissue available for correlative studies.
Total Bilirubin < 2.0 mg/dL
Platelet count ≥ 100,000/µl
AST, ALT ≤ 2.5 x ULN
Clinical stage Tis or T1mi N0 M0.
Hormone receptor status ER and/or PgR positive (see Section 4.4).
For patients < 55 years of age and one year or more
of amenorrhea, serum estradiol level assay must be <
20 pg/ml
Patient must be postmenopausal (see Section 4.5).
No prior surgical excision of index breast for current DCIS Dx.
Any exogenous hormone therapy must be completed 4 weeks prior to
registration.
No prior treatment with tamoxifen or raloxifene.
No prior neoadjuvant/adjuvant therapy for current DCIS Dx.
No contraindication to breast MRI.
Calcifications must be measurable in at least one dimension with each
lesion > 1cm and < 7cm on mammogram; DCIS must be visible on
MRI based on central review. No palpable DCIS or adenopathy.
Multifocal or bilateral disease allowed.
Patients with osteoporosis must be receiving appropriate therapy or
have declined therapy (see Section 4.9).
> 18 years of age.
ECOG (Zubrod) performance status 0-1.
Patients must not be pregnant or nursing.
Study Schema:
CR, PR or SD
6 month research
R
continue
MRI followed by
Diagnostic core
E
3 month
letrozole x 3
surgery♦
biopsy
G
Letrozole
Disease evaluation
months
ER+ DCIS
I
2.5 mg/day
by research MRI
S
x 3 months
Baseline MRI
T
Radiographic
Surgery
with IV contrast
E
PD!
R
!Patients who are found to have radiographic progressive disease at month 3 will have the preoperative mammogram
and be scheduled for surgery within 30 days of the second (month 3) MRI central review.
♦ For patients who have completed 6 months of letrozole the surgery must be performed within 30 days of the 6 month
MRI.
At month 3 or month 6, discontinue letrozole the day before surgery.
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TABLE OF CONTENTS
1.0
INTRODUCTION ..................................................................................................................................5
2.0
OBJECTIVES ........................................................................................................................................8
3.0
ON-STUDY GUIDELINES ...................................................................................................................9
4.0
ELIGIBILITY CRITERIA ...................................................................................................................9
5.0
REGISTRATION .................................................................................................................................11
6.0
DATA AND SPECIMEN SUBMISSION ...........................................................................................16
7.0
REQUIRED DATA ..............................................................................................................................20
8.0
TREATMENT PLAN ..........................................................................................................................23
9.0
DOSE MODIFICATIONS ..................................................................................................................25
10.0
DRUG FORMULATION, AVAILABILITY AND PREPARATION ..........................................25
11.0
CORRELATIVE STUDIES..............................................................................................................25
12.0 ASSESSMENT OF QUALITY OF LIFE AND MUSCULOSKELETAL SYMPTOMS
ASSOCIATED WITH NEOADJUVANT LETROZOLE FOR ER POSITIVE DCIS ...........................30
13.0
CRITERIA FOR RESPONSE, PROGRESSION AND RELAPSE ..............................................35
14.0
REMOVAL OF PATIENTS FROM PROTOCOL THERAPY ...................................................37
15.0
STATISTICAL CONSIDERATIONS ............................................................................................37
16.0
EXPEDITED ADVERSE EVENT REPORTING ..........................................................................43
17.0
REFERENCES...................................................................................................................................46
18.0
MODEL CONSENT FORM: ...........................................................................................................51
APPENDIX I
CALGB 40903 SITE IMAGING MANUAL ....................................................................64
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1.0
INTRODUCTION
Ductal carcinoma in situ (DCIS) will be diagnosed in over 60,000 women in the United States this
year [1]. The incidence of DCIS has risen almost 5-fold over the last 15 years, and now represents 2530% of all mammographically detected breast cancer [2]. The current treatment of DCIS is based on a
presumption that DCIS is a non-obligate precursor of invasive breast cancer that does not itself
demonstrate invasive potential. The goal of treatment is prevention of invasive cancer, which is
accomplished through aggressive local control. One-third of women diagnosed with DCIS will
undergo mastectomy; the rest will undergo some combination of surgery, radiation, and systemic
hormonal therapy [3, 4]. In fact, despite the 99% survival rate from DCIS, the locoregional treatments
for DCIS are not much different than those recommended for the invasive cancers these interventions
are aimed to prevent.
The Problem: Some fraction of DCIS has the potential to become invasive cancer. There is a paucity
of natural history studies of observation alone, since DCIS is generally surgically resected upon
diagnosis. The few retrospective reports of women who had biopsies that were assumed to be benign
but on later review were found to have DCIS report a 20-50% risk of invasive cancer in the twenty
years after biopsy [5-8]. Thus, non-surgical management for those who may never progress to invasive
cancer could reasonable, provided that a low-risk subgroup of DCIS could be identified. One approach
would be to treat women with ER-positive DCIS with preoperative endocrine therapy in order to
reverse malignant changes. If successful, some women could avoid surgery for this disease. The
aromatase inhibitors (AIs) are ideal candidates for use in such a setting.
1.1
The role of aromatase inhibitors in breast cancer treatment
It has long been recognized that breast cancers are susceptible to hormonal manipulation. The
mainstay of hormonal treatment for breast cancer has been tamoxifen. However, a new class of
pharmacologic agents, the aromatase inhibitors (AIs), has emerged in the last decade as an
effective alternative to tamoxifen in postmenopausal women. The AIs function by preventing
peripheral conversion of testosterone to estradiol, thereby inhibiting estrogen-dependent tumor
growth. There have now been several pivotal adjuvant trials comparing aromatase inhibitors to
tamoxifen [9-12]. In aggregate, these studies show that AIs confer an improved DFS over
tamoxifen, thus establishing AIs as important and effective adjuvant hormonal treatment for ERpositive postmenopausal breast cancers. Furthermore, they support a significant potential benefit
of AIs in breast cancer prevention, providing up to 70% reduction in contralateral breast cancer in
patients treated with an adjuvant AI.
1.2
Neoadjuvant studies of aromatase inhibitors in invasive breast cancer
The role of AIs in the neoadjuvant setting has also been actively investigated. The IMPACT
study compared neoadjuvant treatment of ER-positive tumors between three arms: anastrazole
alone, tamoxifen alone, or the combination. After 3 months of preoperative treatment, a greater
proportion of the AI group were candidates for breast conserving surgery (46% versus 22%,
p=0.03), although no significant difference in objective response between anastrazole and
tamoxifen was observed [13]. A similar comparison between neoadjuvant letrozole alone to
tamoxifen alone in the P024 trial showed an increase in clinical response rate (complete response
+ partial response; OR 2.23; 95% CI 1.43-3.50) and the breast conservation rate in the letrozole
group compared to the tamoxifen group [14]. Most recently, in a study evaluating the DCIS
component in prospective randomized window trial of letrozole versus anastrozole for ERpositive postmenopausal invasive cancer, a significant drop in Ki67 was seen for both groups in
the DCIS component of the tumor [15].
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1.3
Letrozole
Letrozole is a highly selective non-steroidal competitive inhibitor of the aromatase enzyme
system. It has been shown to effectively inhibit the conversion of androgens to estrogens both in
vitro and in vivo [16]. Some data that suggest that it may be the most effective AI in the
neoadjuvant setting [17, 18]. It is administered orally, has few adverse effects, and unlike
tamoxifen, does not lead to an increase in endometrial cancer. At least one clinical study shows
that neoadjuvant letrozole may be more effective than tamoxifen in Her2-positive invasive
cancers [19]. Since approximately 50% of DCIS lesions are Her-2/neu positive, letrozole may be
particularly suited for neoadjuvant studies in DCIS. Major side effects associated with letrozole
therapy include musculoskeletal pain in 15-25% of patients [20] and fracture rate, which in one
study was reported to be 8.6% versus 5.8% in the letrozole group compared to the tamoxifen
treated group at 51 months [21] (see Section 10.1).
1.4
Radiographic evaluation of DCIS: Rationale for magnetic resonance imaging (MRI)
assessment
The follow-up for patients undergoing nonsurgical or preoperative treatment for breast cancer is
predicated on the ability to detect tumor progression. Thus, one important consideration for the
primary treatment for DCIS is whether the response to nonsurgical interventions can be assessed
noninvasively. Up to 90% of intraductal cancers are nonpalpable and therefore, not evaluable on
physical examination. Moreover, although up to 75% of all DCIS is detected by mammography,
it has been well documented that the extent of DCIS cannot be accurately predicted with
mammography alone [22, 23]. The problem of mammographically occult DCIS is further
underscored by the fact that up to 68% of margins, determined to be negative on specimen
radiography, still demonstrate residual disease on final pathology [24]. Since DCIS usually
presents as calcifications without an associated density or mass, ultrasound is not useful in this
setting and appears to consistently underestimate the presence or extent of disease [25]. It is
unknown whether microcalcifications, often the sole mammographic abnormality, disappear if
DCIS regresses. Therefore, any study evaluating response of DCIS to medical therapy cannot rely
solely on mammographic or sonographic imaging.
The ideal imaging modality with which to follow patients with DCIS must be able to: (1)
accurately determine extent of DCIS, and (2) assess whether invasive cancer is present.
Preliminary studies indicate that magnetic resonance imaging (MRI) may have the ability to do
both, with greater accuracy than either mammography or ultrasound. One of the earliest studies
of MRI for intraductal cancers was a retrospective review of 22 cases of DCIS in which MRI
accurately predicted the extent of disease in 21 of 22 cases, compared with 14 of 19 patients
accurately assessed by mammography [26]. In another small retrospective study from the
University of California, San Francisco (UCSF), extent of DCIS was correctly predicted by MRI
in 11 of 13 patients [27]. An important limitation of MRI for DCIS, however, is its poor
performance in detecting lesions less than 5 mm in diameter [28]. Nevertheless, Kuhl and
colleagues have reported in a prospective observational study, that MRI detected 92% of DCIS
compared to only 56% detected by mammography [29]. Presently, magnetic resonance imaging
is the most sensitive imaging tool available to evaluate both the extent of DCIS and the presence
of associated occult invasive carcinoma.
In the neoadjuvant setting both tumor size and tumor volume have been proposed as surrogate
indicators of treatment response, as baseline pathologic tumor measurement is not possible since
surgical excision is undertaken after preoperative treatment has been administered. Although
reduction in maximal tumor diameter has been a well-described radiographic endpoint for both
mammographic and sonographic measures, we and other have found that tumor diameter may
have limited ability to detect response to therapy in the setting of patchy, heterogeneous response
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rather than concentric tumor reduction. In the UCSF study of patients undergoing neoadjuvant
therapy for invasive breast cancer, change in MRI tumor volume was superior to change in MRI
tumor diameter, clinical examination, or number of positive nodes in predicting relapse-free
survival [30]. Furthermore, MRI volume has been shown to be a more reproducible measure than
maximum diameter, particularly for irregularly shaped lesions with heterogeneous treatment
response [31].
1.5
Preliminary results of neoadjuvant hormonal therapy for DCIS
Boland and colleagues first presented data to suggest that estrogen withdrawal may result in
detectable biologic changes in DCIS [32]. The researchers conducted a retrospective review of
108 patients with core-biopsy diagnosed DCIS. The women were divided into three groups: 27
women who stopped hormone replacement therapy (HRT) at diagnosis, 25 women who
continued to take HRT up to surgery, and 56 women who were not taking HRT at diagnosis.
Ki67, ER, PR, and Her2 were evaluated by IHC on both the core biopsy and surgical excision
specimens. Discontinuation of HRT resulted in both decreased cell proliferation and reduced PR
expression only in those patients with ER(+) disease.
The investigators hypothesized that administration of endocrine treatment may result in a similar
biologic effect on unresected DCIS; furthermore, the investigators were interested in whether a
radiographic correlate to biological response could be demonstrated. Investigators at UCSF
recently completed a single-arm pilot study of 23 postmenopausal women with a diagnosis of
ER-positive pure DCIS by stereotactic core biopsy. Participants were enrolled in a trial of
neoadjuvant letrozole administered for three months followed by definitive surgical excision. A
placebo arm was not deemed to be acceptable, as the risk of DCIS progression with 3 months was
unknown and thus potentially deleterious to the patient. Premenopausal women were treated with
tamoxifen and postmenopausal women were treated with letrozole. MRI examinations were
obtained at baseline and following 3 months of endocrine therapy. Study adherence was high,
with no patients withdrawing from the study prior to the 3-month MRI evaluation.
Volume measurements on DCIS lesions at baseline and following three months of endocrine
therapy were based on the signal enhancement ratio (SER) defined by the relationship between
the highest signal intensity (SI) at baseline, at the first timepoint after contrast injection, and at
the second timepoint after contrast injection. SER is defined as: (SER)=(S1-S0)/(S2-S0), where
S0, S1 and S2 are the pre-contrast, first post-contrast and second-post contrast signal intensities
of the three time-point data acquisition.
In the pilot study, there was no significant change in mammographic extent of DCIS. However,
there was a significant reduction in the extent of MRI enhancement based on single maximum
tumor diameter as well as on calculated tumor volume (volSER) measurements. This pilot study
demonstrates that preoperative endocrine therapy results in change in MRI enhancement
characteristics for DCIS. Pathologic findings included a decrease in Ki67 and duct distention, an
increase in periductal sclerosis and scattered degenerated cells, as well as an increase in
macrophage infiltrate [33]. Furthermore, two of the 22 cases treated with endocrine therapy
demonstrated only ADH without residual DCIS in the post-treatment excision specimens.
Importantly, two of the 23 patients had invasive ductal carcinoma in addition to DCIS in posttreatment excision specimens. One of the invasive carcinomas was HER2-positive, as was its
associated DCIS. In both cases, the invasive tumors were hormone receptor-positive. The cases
of invasive cancer were encountered early in the trial and most likely represented failure of MRI
to detect invasive cancer. Recent data from UCSF suggests that baseline MRI in women with
newly detected DCIS has a negative predictive value of 96% - 100% for invasive cancer
(unpublished data), making inclusion of patients with extensive invasive cancer highly unlikely.
Disease progression cannot be entirely excluded, although this is not likely as all patients
remained on hormonal treatment for the duration of the study.
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The neoadjuvant approach described in this pilot study provides a framework for evaluating the
radiographic response of DCIS, based on change in MRI volume, to preoperative therapies.
These findings support a rationale for an extended study to both confirm these findings and to
determine whether baseline radiographic and biologic markers could predict which patients will
respond best to such a neoadjuvant approach.
1.6
Trial design
The proposed trial is a neoadjuvant study of 6 months of aromatase inhibitor therapy for ER(+)
postmenopausal DCIS. The goal will be to determine whether preoperative aromatase inhibitor
treatment for DCIS results in mammographic and MR-detectable radiographic regression or
stabilization of disease. This study is designed to establish a foundation from which to plan novel,
less aggressive treatment algorithms for patients with pre-invasive breast disease.
1.7
Inclusion of Women and Minorities
Trial participation will not be limited by race or ethnicity, and patients of all ethnic backgrounds
will be encouraged to participate. However, the trial will be limited to female patients only, as
this is the predominant population undergoing mammographic screening.
Accrual Targets
Ethnic Category
Hispanic or Latino
Not Hispanic or Latino
Ethnic category: Total of all subjects
Females
11
95
106 (A1)
Racial Category
2.0
3
pts/month
Total
11
95
106 (C1)
1
3
11
+
+
+
0
0
0
=
=
=
1
3
11
1
+
0
=
1
90
106 (A2)
+
0
0 (B2)
=
=
90
106 (C2)
(A1=A2)
Accrual Rate:
=
=
=
+
American Indian or Alaskan native
Asian
Black or African American
Native Hawaiian or other Pacific Islander
White
Racial Category: Total of all subjects
Sex/Gender
Males
+
0
+
0
+
0 (B1)
Total Expected Accrual:
(B1=B2)
106
Min
(C1=C2)
115
Max
OBJECTIVES
2.1
Primary Objective
To estimate the mean change in MRI tumor volume from pretreatment to completion of
preoperative endocrine therapy in ER(+) DCIS, as well as to determine whether 3-month change
in volume correlates with 6-month change.
2.2
Secondary Objectives
2.2.1 To assess radiographic-pathologic correlation between MRI findings and histopathology,
including the prevalence of occult invasive cancer in patients undergoing neoadjuvant
endocrine therapy for DCIS.
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2.2.2 To compare changes in (1) MRI maximum lesion diameter and (2) mammographic extent at
baseline and following treatment. These are two additional radiographic parameters which
may also detect biological response to therapy.
2.2.3 To determine practice patterns of adjuvant hormonal and radiation therapy in patients who
complete neoadjuvant letrozole therapy for DCIS.
2.2.4 To determine whether Ki67 is reduced with neoadjuvant letrozole treatment for DCIS, and to
compare the reduction in proliferation between radiographic responders and non-responders.
2.2.5 To identify baseline IHC and expression biomarkers predictive of response to treatment, with
response determined by extent of Ki67 reduction. Subsets showing the greatest reduction in
Ki67 would be the most likely candidates for non-operative treatment in future studies.
2.2.6 To examine whether germline polymorphisms are associated with clinical endpoints,
including treatment-related toxicity or efficacy outcomes, or with expression of biomarkers in
serum or tumor.
2.2.7 To assess quality of life and musculoskeletal symptoms associated with neoadjuvant letrozole
for ER positive DCIS.
3.0
ON-STUDY GUIDELINES
Any postmenopausal patient referred to a surgeon at a participating institution with a new diagnosis of
ER-positive DCIS or DCIS with micro invasion rendered on core biopsy will be eligible to participate
in the study. All study participants must be amenable to delaying definitive surgery for DCIS for up to
6 months while remaining on letrozole.
Although the following will not be considered formal eligibility (exclusion) criteria, physicians should
recognize that the following may seriously increase the risk to patients entering this protocol:
4.0
•
Psychiatric illness, which would prevent the patient from giving informed consent.
•
Medical condition such as uncontrolled infection (including HIV), uncontrolled diabetes
mellitus or cardiac disease which, in the opinion of the treating physician, would make this
protocol unreasonably hazardous for the patient.
•
Patients with a “currently active” second malignancy other than non-melanoma skin cancers.
Patients are not considered to have a “currently active” malignancy if they have completed
therapy and are free of disease for ≥ 3 years. This includes a previous diagnosis of breast
cancer.
ELIGIBILITY CRITERIA
All questions regarding eligibility criteria should be directed to the CALGB Study Chair. Please
note that the Study Chair cannot grant waivers to eligibility requirements.
4.1
Histologic documentation
Pathologic confirmation of DCIS of the female breast without invasive cancer, with diagnosis
rendered on core biopsy only, completed within 60 days before registration. Patients diagnosed
with DCIS on the basis of surgical biopsy are not eligible for this study.
Patients with microinvasion on diagnostic core biopsy, defined as tumor < 1mm in greatest
dimension, will be allowed to participate.
All patients must have a clip placed, either at the time of the diagnostic biopsy or at the time of
the baseline MRI prior to the start of treatment.
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4.2
Tissue samples
Patient has diagnostic tissue available for correlative studies.
4.3
Clinical stage
Tis or T1mi N0 M0
4.4
Hormone receptor status
DCIS must express estrogen and/or progesterone receptor, as determined by
immunohistochemical methods on the diagnostic pathology sample, according to the local
institution’s standard protocol. Greater than or equal to 1% cells will be considered to be positive.
4.5
Menopausal status
Patients must be postmenopausal defined as:
•
Age ≥ 55 years and one year or more of amenorrhea
•
Age < 55 years and one year or more of amenorrhea, with an estradiol assay < 20 pg/ml.
•
Surgical menopause with bilateral oophorectomy (at least 28 days must elapse from surgery
to time of study registration).
The use of GnRH analogs to achieve postmenopausal status is not allowed.
4.6
4.7
Prior treatment
•
No prior surgical excision in the index breast for current DCIS diagnosis of DCIS
•
Any exogenous hormone therapy must be completed 4 weeks prior to registration
•
Any patients with a history of tamoxifen or raloxifene use within two years of current DCIS
diagnosis are not eligible
•
No prior neoadjuvant/adjuvant therapy for current DCIS diagnosis
Contraindication to MRI
No contraindications to breast MRI
4.8
Measurable disease
Mammographic extent of calcifications must be accurately measurable in at least one dimension
with each lesion > 1 cm and < 7cm.
DCIS must be visible on MRI based on central review.
Patients with palpable DCIS or adenopathy are not eligible to participate.
Patients with multifocal or bilateral disease are eligible.
4.9
History of osteoporosis
Women diagnosed with osteoporosis may participate in this trial provided they are receiving
appropriate therapy or if they have declined therapy.
4.10
Age
Patients ≥ 18 years of age
4.11
Performance status
ECOG performance status 0 or 1
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4.12
Pregnancy/nursing status
Not pregnant or nursing
4.13
Required initial laboratory values
ANC
Platelet count
Serum creatinine
Bilirubin
AST/ALT
Serum estradiol level assay (required for
patients < 55 years of age and one year or more
of amenorrhea)
5.0
≥ 1,000/µl
≥ 100,000/µl
≤ 1.7 mg/dL
≤ 2.0 mg/dL
< 2.5 x ULN
< 20 pg/ml
REGISTRATION
5.1
Registration requirements
5.1.1 Informed consent
The patient must be aware of the neoplastic nature of his/her disease and willingly consent
after being informed of the multiple procedures to be followed, the experimental nature of the
therapy, alternatives, potential benefits, side effects, risks and discomforts. If local guidelines
and regulations permit the enrollment of persons not able to fulfill all of these requirements,
the registering institution is responsible for complying with all local regulations and
requirements for obtaining consent from these persons. Modification of the model consent
form would be required for this purpose. Human protection committee approval of this
protocol and a consent form is required.
Registration must occur prior to the initiation of therapy.
Registration to the optional companion studies will be performed at the time registration
occurs to the treatment study. Registration to both the treatment study and the companion
studies will not be completed if eligibility requirements are not met for the three trials.
5.1.2 American College of Radiation Imaging Network (ACRIN) prequalification for breast
MRI acquisition
Prior to enrolling the first patient, institutions must be prequalified by ACRIN to
participate in the trial.
The purpose of the qualification process is to help ensure that study imaging is of high
quality and performed per the standardized MRI acquisition protocol (see Section 7.1).
Suboptimal image quality and/or imaging not performed per the trial-standardized protocol
can result in exclusion of the imaging exam(s) and/or the entire case from analysis.
Therefore, routine QC and adherence to the image acquisition protocol are of great
importance.
Sites are encouraged to communicate with the MR team and initiate the prequalification
process prior to IRB approval so as to avoid delays in site activation due to the qualification
process. Requirements of the qualification process are summarized below; please refer to the
CALGB 40903 Site Imaging Manual (see Appendix I and the CALGB and CTSU 40903
study pages of these web sites) for additional details and data submission instructions.
•
Protocol-Specific Applications (PSA)
For each scanner to be used in the trial:
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•
MR Qualification Form (MRQF)
•
Acquisition/submission of two test scans acquired per the standardized imaging
protocol (as provided in the CALGB 40903 Site Imaging Manual)
In order to pass the qualification process the test scans must display good image quality and
be compliant with the standardized MRI acquisition protocol.
Please refer to the CALGB 40903 Site Imaging Manual for all image acquisition and
submission instructions.
5.1.3 Investigator information
Prior to the recruitment of a patient for this study, investigators must be registered members
of the CALGB, NCCTG, or ACOSOG. Each investigator must have an NCI investigator
number and must maintain an “active” investigator registration status through the annual
submission of a complete investigator registration packet (FDA Form 1572 with original
signature, current CV, Supplemental Investigator Data Form with signature, and Financial
Disclosure Form with original signature) to the Pharmaceutical Management Branch, CTEP,
DCTD, NCI. These forms are available on the members’ section of the CTSU web site
(www.ctsu.org) or by calling the PMB at 301-496-5725 Monday through Friday between
8:30 a.m. and 4:30 p.m. Eastern time.
5.1.4 Site registration requirements
IRB Approval
5.1.4.1 Each CTSU investigator or group of investigators at a clinical site must obtain IRB
approval for this protocol and submit IRB approval and supporting documentation to
the CTSU Regulatory Office before they can enroll patients. Study centers can check
the status of their registration packets by querying the Regulatory Support System
(RSS) site registration status page of the CTSU web site (https://www.ctsu.org/) by
clicking on the Regulatory Tab.
5.1.4.2 In addition to submitting initial IRB approval documents, ongoing IRB approval
documentation must be on file (no less than annually).
If the necessary
documentation is not submitted in advance of attempting patient registration, the
registration will not be accepted and the patient may not be enrolled in the protocol
until the situation is resolved.
5.1.4.3 When the study has been permanently closed to patient enrollment, submission of
annual IRB approvals to the CTSU is no longer necessary.
Regulatory Requirements
5.1.4.4 Requirements for CALGB-40903 site registration:
• CTSU IRB Certification
• CTSU IRB/Regulatory Approval Transmittal Sheet
• ACRIN Prequalification
5.1.5 Patient enrollment
All site staff will use OPEN to enroll patients to this study. OPEN can be accessed at
https://open.ctsu.org or from the OPEN tab on the CTSU members’ side of the website at
https://www.ctsu.org.
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5.1.5.1 Prior to accessing OPEN site staff should verify the following:
• All eligibility criteria have been met within the protocol stated timeframes. Site staff
should use the registration forms provided on the group or CTSU web site as a tool
to verify eligibility.
• All patients have signed an
authorization form (if applicable).
appropriate
consent
form
and
HIPAA
5.1.5.2 Access requirements for OPEN
• Site staff will need to be registered with CTEP and have a valid and active CTEPIAM account. This is the same account (user id and password) used for the CTSU
members' web site.
• To perform registrations, the site user must have been assigned the 'Registrar role
on the relevant Group or CTSU roster.
• To perform registrations on protocols for which you are a member of the Lead
Group, you must have an equivalent 'Registrar' role on the Lead Group roster. Role
assignments are handled through the Groups in which you are a member.
• To perform registrations to trials accessed via the CTSU mechanism (i.e., non-Lead
Group registrations) you must have the role of Registrar on the CTSU roster. Site
and/or Data Administrators can manage CTSU roster roles via the new Site Roles
maintenance feature under RSS on the CTSU members' web site. This will allow
them to assign staff the "Registrar" role.
Note:
The OPEN system will provide the registering site, the ACRIN Core Laboratory
and the UCSF MRI Research Laboratory with a printable confirmation of registration and
treatment information. Please print this confirmation for your records.
Further instructional information is provided on the OPEN tab of the CTSU members’ side of
the CTSU website at https://www.ctsu.org or at https://open.ctsu.org. For any additional
questions contact the CTSU Help Desk at 1-888-823-5923 or [email protected].
5.2
Registration to companion studies
There are two substudies within CALGB 40903. These correlative science and pharmacogenomic
studies must be offered to all patients enrolled on CALGB 40903 (although patients may opt to
not participate). These substudies do not require separate IRB approval. The substudies are
included within CALGB 40903:
• Correlative Science Studies, CALGB 151008 (Section 11.1)
• Pharmacogenomic Studies, CALGB 61105 (Section 11.3.3)
If a patient answers “yes” to “My specimens may be used for the research described above.”
question #2 in the model consent, they have consented to participate in the substudy described in
Section 12.1. The patient should be registered within the OPEN system to CALGB 151008 at the
same time she is registered to the treatment trial (40903). Samples should be submitted per
Section 6.4.
If a patient answers “yes” to “My specimen may be used for the genetic research described
above.” question #3 in the model consent, they have consented to participate in the substudy
described in Section 12.3.3. The patient should be registered to CALGB 61105 at the same time
she is registered to the treatment trial (40903). Samples should be submitted per Section 6.4.
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5.3
Surgical protocol quality assurance requirements
5.3.1 General guidelines
The Surgical Quality Assurance Form (SQA-40903) will be completed by the Study Chair, E.
Shelley Hwang MD, within 30 days after submission of the CALGB: 40903 Surgical Summary
Form (C-2057), the surgical pathology and operative reports.
This is a neoadjuvant protocol for ER-positive DCIS in postmenopausal women, with surgery a
requirement following preoperative treatment with letrozole. Pathologic confirmation of DCIS
without invasive cancer is required to confirm eligibility (see Section 4.1). For patients who
have consented, 1 FFPE diagnostic tissue block and one 1 FFPE tissue block from surgical
excision specimens must be submitted to the Alliance Biorepository at Ohio State University for
correlative science studies.
Breast MRI scans will be performed at baseline, at 3 months, and at 6 months. Patients will
undergo definitive excision following 6 months of treatment with letrozole, with the exception of
those patients who demonstrate radiographic progression of DCIS on the basis of MRI, as
determined by the clinicians at the enrolling site at 3 months and confirmed by the UCSF Breast
MRI Research Laboratory (Section 8.0), who will then undergo surgery at 3 months. Patients will
continue to receive letrozole until the day prior to surgery. Based on clinical criteria including
mammography, breast MRI, and patient preference, a lumpectomy or mastectomy will be
performed for definitive excision, with the reason for choice of surgery documented on the
CALGB 40903 Surgical Summary Form (C-2057).
All patients must be excised to negative margins documented on the C-2057 form, defined as no
ink on tumor. All patients with positive margins are recommended to undergo re-excision to clear
the margins. The only exception will be those patients in whom the positive margin is the
posterior margin, and the surgeon has documented that pectoralis fascia has been excised. It is
expected that for some patients, this may require more than one re-excision.
Sentinel lymph node biopsy/axillary lymph node dissection are controversial in the setting of
DCIS. In the absence of clear treatment guidelines, the axilla may be managed based on the
clinical judgment of the treating surgeon. Options for management of the axilla include the
following: no surgery, sentinel node biopsy only, or axillary dissection if positive axillary nodes
are identified. Choice for management of the axilla will be recorded on the C-2057 form.
The choice for reconstruction in patients undergoing mastectomy will be left to the discretion of
the patient and her treating physician.
5.3.2 Surgical quality assurance (procedure)
Credentialing: Not applicable
Lumpectomy, mastectomy and sentinel node biopsy are routinely performed procedures. All
surgeons who routinely treat patients with breast cancer in their practice may enroll patients
to this study, without a credentialing requirement.
Definitions of deviations in protocol performance
Major deviations
•
Inadequate surgery: Lumpectomy or mastectomy with positive margins (excluding
posterior margin) without re-excision of margin
•
Positive posterior margin without documentation of excision of pectoralis muscle
•
Failure to perform surgery within 30 days of the 6-Month study visit, or within 30 days
of the 3-month MRI central review for patients who have radiographic progression at 3
months
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Minor deviations
Failure to submit pathological specimens for patients who have consented to specimen
submission for the in the correlative science study and central pathology review:
•
1 FFPE tissue blocks from the original diagnostic specimen
•
1 post letrozole FFPE surgical excision specimens
•
Failure to have patient continue on letrozole until the day prior to surgery
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6.0
DATA AND SPECIMEN SUBMISSION
6.1
Data submission:
Forms are required to be submitted to the CALGB Statistical Center, Data Operations in
compliance with the Data Submission schedule below. There are three options for submitting
forms that use the Teleform barcode and cornerstones:
•
the preferred method is to submit the forms electronically using the “Submit to CALGB”
button located at the bottom of the last page of each form. Forms submitted electronically
should not be submitted by fax or mail.
•
the forms may be faxed at 919-416-4990. Please note that the four cornerstones and the form
id ("bitmap") must appear on the form. Copies must be 100% of the original form size.
•
the forms may be mailed to the CALGB Statistical Center, Data Operations, Hock Plaza,
2424 Erwin Rd, Suite 802, Durham, NC 27705. Please note that the four cornerstones and the
form id (“bitmap”) must appear on the form. Copies must be 100% of the original form size.
6.1.1 For the most up-to-date data forms, please visit the CALGB website at www.calgb.org.
Form
C-2054
C-2059
Submission Schedule
CALGB: 40903 Registration Work Sheet
CALGB: 40903 Eligibility Checklist
CALGB: 40903 On-Study Form
CALGB: 40902 Mammogram Tracking Form (baseline)
Submit within two weeks of registration
C-2060
Reports*
CALGB: 40903 MRI Tracking Form (baseline)
Diagnostic Pathology report Mammogram report (baseline) MRI
report (baseline)
C-2055
S-078
C-2056
CALGB: 40903 Treatment Form
CALGB: 4003 Medication Calendar
CALGB: 40903 Adverse Event Form
Submit at month 1 visit
C-2060
CALGB: 40903 MRI Tracking Form (Month 3) and MRI report **
Submit within 2 days of month 3 MRI
C-2055
S-078
C-2056
CALGB: 40903 Treatment Form
CALGB 40903 Medication Calendar
CALGB: 40903 Adverse Event Form
Submit at month 3 visit
C-2060
CALGB: 40903 MRI Tracking form (Month 6) and MRI report**
Submit within 2 days of month 6 MRI
C-2055
S-078
C-2056
CALGB: 40903 Treatment Form
CALGB: 40903 Medication Calendar
CALGB: 40903 Adverse Event Form
Submit at month 6
C-2055
S-078
C-2059
Reports*
CALGB: 40903 Treatment Form
CALGB: 40903 Medication Calendar
CALGB Mammogram Tracking Form
Pre-surgery mammogram reports
Submit at first post-op visit
C-2057
CALGB: 40903 Surgical Summary Form
Pathology and operative reports
Submit within 4 weeks of last surgery
C-2058
CALGB: 40903 Follow-up Form
Submit at 6 months after last surgery, or at 6
months after completion of letrozole treatment
for patients who do not proceed to surgery
CALGB: 40903 Quality of Life Assessment Forms
See Sections 6.2 an 12.0
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* Submit copies of all required reports to confirm eligibility and response to treatment.
** If clinical read is done locally, please submit mammogram and MRI reports to Alliance Statistical and Data Center –
Duke (Fax: 919-668-9348 or 919-416-4990).
This study will utilize the Common Terminology Criteria for Adverse Events version 4.0 for routine toxicity reporting
on study forms.
6.1.2 Patient follow-up
Follow patients who undergo surgery until post operative clinic visit that occurs at 6 months
after completion of surgical resection. For patients who do not undergo surgery, follow until
the clinic visit that occurs at 6 months after ending letrozole therapy.
6.2
Submission of quality of life measures
Form
CALGB: Brief Pain
Inventory (Short Form)
C-358
C-2030
C-2031
C-2032
C-2033
C-2088
C-650
CALGB: 40903 Beliefs
about Medicine
Questionnaire (BMQModified)
CALGB 40903 Morisky
Medication Taking ScaleModified (MMAS)
CALGB: 40903
Managing Medication
Side Effects Self-Efficacy
CALGB: 40903
Menopause Specific QOL
Questionnaire Menqol
CALGB: 40903-AIMS 2
Arthritis Impact
Measurement Form
(Abbreviated)
CALGB: FACT-G Scale
Baseline
Month 1
Month 3
Month 6
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
x
Final visit
(Six months post
completion of final
surgical resection or end
of letrozole)*
X
For patients who have agreed to participate, baseline forms (a total of 5 forms) should be
completed after consent has been signed, but prior to initiation of letrozole therapy.
At the month 1, 3 and 6 visits the C-2030 (BMQ) and C-2031 (MMAS) forms will also be
administered (total of 7 forms). Only patients who continue to receive letrozole therapy for the
second 3 months will complete the month 6 QOL questionnaires.
*The C-650 (FACT-G) will be completed at the final visit:
6.3
•
Six months after completion of final surgical resection.
•
For patients who do not undergo surgery, after the last dose of letrozole.
Submission of digital mammogram and MRI scan images
Digital mammograms and MRI scans will be uploaded to the ACRIN Imaging Core Laboratory
within 1-2 business days of image acquisition for central review and archiving. MRI image data
will subsequently be sent by ACRIN to University of California San Francisco Breast MRI
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Research Laboratory for central review and quantitative analysis. See Section 7.2 for image
submission instructions.
6.4
Specimen submission for correlative studies:
All participating institutions must offer the correlative biomarker (CALGB 151008) and genomic
studies (CALGB 61105) to all patients enrolled on this study, although patient participation is
optional. The studies are described in Section 12.0 of the protocol. Patients must be registered to
these studies in order to log samples into BioMS (see Section 5.2).
Sample Submission Table:
Sample Type
Tissue
(151008)
Blood
(61105)
Pre-treatment
1 FFPE tissue block from
diagnostic specimen
20 ml peripheral whole venous
blood collected in an EDTA
lavender top tube(s)
At Surgery
1 FFPE tissue block from
surgical excision specimens
Ship To
OSU
OSU
Instructions for the collection and shipping of samples are included below. Please be sure to use a
method of shipping that is secure and traceable. Extreme heat precautions should be taken when
necessary.
6.4.1 Specimen registration and tracking
USE OF THE ALLIANCE BIOSPECIMEN MANAGEMENT SYSTEM (BioMS) IS
MANDATORY AND ALL SPECIMENS MUST BE LOGGED AND SHIPPED VIA THIS
SYSTEM.
BioMS is a web-based system for logging and tracking all biospecimens collected on
Alliance trials. Authorized individuals may access BioMS at the following URL:
https://bioms.wustl.edu.bioms using most standard web browsers (Safari, Firefox, Internet
Explorer). For information on using the BioMS system, please refer to the ‘Help’ links on the
BioMS web page to access the on-line user manual, FAQs, and training videos. To report
technical problems, such as login issues or application errors, please contact: 1-85555BIOMS. For assistance in using the application or questions or problems related to specific
specimen logging, please contact: 1-855-55BIOMS.
After logging collected specimens in BioMS, the system will create a shipping manifest. This
shipping manifest must be printed and placed in the shipment container with the specimens.
•
All samples should be labeled with CALGB study number (40903), CALGB patient ID
number, patient initials, institution, sample collection date and time and institutional surgical
pathology number (tumor samples).
6.4.2 Block submission
After all institutional clinical pathologic assessments have been completed on the diagnostic
and surgical excision tumor blocks, the blocks must be labeled as described in the bullet point
in Section 6.4.1 and shipped to the Alliance Biorepository at Ohio State University.
In instances where the tissue block cannot be released due to institutional or governmental
policy, please contact the CALGB Alliance Biorepository at Ohio State University at 614293-7073, to obtain a tissue-cutting schema for this protocol.
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6.4.3 Whole blood submission for genomic studies
Draw 20 ml of peripheral venous blood into an EDTA lavender top tube(s) prior to initiating
study treatment. Invert several times to mix EDTA. Blood samples must be labeled as
described in the bullet point in Section 6.4.1. Samples should be refrigerated until shipped.
The sample should be shipped the same day that the blood is drawn. Samples should be
sent with cold refrigerant pack by overnight express courier.
All samples should be sent to the following address:
Alliance Biorepository at The Ohio State University
The Ohio State University
Innovation Centre
2001 Polaris Parkway
Columbus, OH 43240
Tel: 614-293-7073
Fax: 614-293-7967
Ship specimens by overnight courier to the Alliance Biorepository at The Ohio State
University the same day they are collected. Shipment on Monday through Friday by
overnight service to assure receipt is encouraged. If shipping on Friday, FedEx or UPS must
be used and the air bill must be marked “For Saturday delivery.” Do not ship specimens on
Saturdays. Please be sure to use a method of shipping that is secure and traceable.
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7.0 REQUIRED DATA
Pre-Study Testing Interval
To be completed within 28 days before registration:
- All blood work
- History and physical
To be completed within 60 days before registration:
- Diagnostic core biopsy
- Breast MRI with IV contrast
To be completed within 90 days before registration:
- Bilateral digital mammogram
Prior to
Registration
Tests and Observations
History* and
Progress Notes
Physical
Examination
Performance
Status
Clinical Breast
Examination
Diagnostic core
biopsy
Drug Toxicity
Assessment
Laboratory Studies
CBC, differential,
platelets
AST,
ALT,
bilirubin
serum creatinine
Estradiol assay
Prior to
start of
letrozole
Therapy
Start of
letrozole
Therapy
X
X
X
I
s
Month
1 (wk
5 of tx)
Month 3
(wk 13
of tx)
Month 6
(wk 25
of tx)
X
X
X
X
X
X
X
X
X
X
X
X
Preop
Visit
B
Surgery
Postop
Visit
D
D
D
X
o
r
X
X
X
o
n
l
y
X
X
m
a
m
m
o
g
r
a
m
?
I
s
X
G
Radiographic Tumor Measurements
Baseline Bilateral
X
digital
mammography**
Breast MRI w/IV
X
I
contrast**
Correlative Studies
Tissue blocks
Blood samples
Treatment Adherence Record
40903 Letrozole
Medication
CALGB:
40903 Medication
Calendar
QOL Questionnaires
Questionnaires
QOL
u
l
t
r
a
s
o
u
Follow-up
visit n
6
d
months
post-op▲
a
c
X c
e
p
X
t
a
b
l
X e
E
E
H
H
A
A
A
2
8
C
F
C
C
C
F
F
F
C
d
aF
y
s
A For consenting patients, submit diagnostic FFPE core tissue blocks within four weeks after registration and surgical
FFPE tissue blocks within four weeks after surgery per sections 6.4 – 6.4.2. For consenting patients submitawhole
blood for pharmacogenomic studies prior to beginning letrozole therapy only, per section 6.4.3.
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l
i
t
t
l
e
B Note that the preoperative visit may coincide with: The 6-month visit if surgery occurs within 30 days of month 6
visit, OR the month 3 visit if patient meets progression criteria, and surgery occurs within 30 days of month 3 MRI
central review.
C 40903 Letrozole Medication Calendars to be given to and collected from patients (see Section 8.1).
D Within 30 days post surgery.
E Patients are required to have two mammograms, one at baseline and one within 4 weeks prior to surgery. This can be
performed at the time of a radiographic guided localization procedure, if applicable. Mammogram must be bilateral
at baseline and only the affected breast(s) at pre-surgery.”
F Please see Section 6.2. for details. NOTE: Only patients who continue to receive letrozole therapy for the second 3
months will complete the month 6 QOL questionnaires.
G For pts < 55 years and one year or more of amenorrhea.
H The month 3 and/or 6 MRIs should be performed within 2 weeks prior to the study visit. For patients who progress
per Month 3 MRI central review, the Month 6 MRI will not be required.
I If the initial baseline MRI needs to be repeated in order to meet protocol requirements (ACRIN accredited scanner)
the repeated MRI must be completed prior to initiating letrozole therapy.
* History is required only with the “Prior to registration” progress note.
** See Section 7.1 for imaging acquisition requirements and Section 7.3 for MRI central review instructions.
▲ For patients who do not under go surgery, follow up visits is at 6 months after the end of letrozole therapy. For
patients who undergo surgery, the follow-up visit will take place 6 months post completion of surgical resection.
7.1
Image acquisition requirements
7.1.1 Digital breast mammogram
Patients are required to have two digital, mammograms: A baseline bilateral mammogram
and mammogram(s) of the affected breast(s) prior to surgery. The two standard views
(cranio-caudal and medial-lateral oblique) for each breast is to be performed per each
institution’s standard of care. For some women with larger breasts, additional images may be
necessary to image the entire breast as in usual clinical practice. Mammogram reports must
specifically state the longest diameter of DCIS extent to document that eligibility criterion
4.8 has been met.
7.1.2 Breast MRI
Participation in the CALGB 40903 study requires that all sites adhere to a standardized MR
imaging protocol. The use of standardized imaging guidelines is an essential component of
clinical trials in which imaging plays a central role in the research endpoints. This is of
particular importance in multicenter trials where equipment, personnel, and imaging
acquisition protocols can vary significantly across sites.
Patients are to have three breast MRI exams: at baseline, Month 3 (week 13 of treatment) and
Month 6 (week 25 of treatment, pre-surgery). Note that the Month 6 MRI will not be required
for patients who progress per Month 3 MRI central review. All MRI scans must be performed
per the standardized acquisition protocol as detailed in the CALGB 40903 Site Imaging
Manual which is available in Appendix I and is available on the 40903 study page of the
CALGB and the CTSU web sites. The breast MRI protocol includes a pre-contrast T2weighted sequence a pre-contrast diffusion-weighted imaging (DWI) sequence, and a T1weighted sequence performed once pre-contrast then a dynamic contrast-enhanced (DCE)
sequence (T1-weighted sequence performed multiple times post-contrast using identical
parameters as the pre-contrast T1).
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General requirements
•
1.5T or 3.0T whole body MRI scanner
•
Dedicated breast radiofrequency coil
•
All MRI exams for the same patient should be performed using the same scanner or the
same scanner configuration (manufacturer; field strength; breast coil model).
•
All scanners used for study imaging should be prequalified by ACRIN.
•
Single dose contrast agent injection (FDA-approved gadolinium-based contrast agent);
the same contrast agent brand should be used for all MRI exams for the same patient.
•
All MRI images submitted for an individual patient must be obtained using a consistent
imaging protocol throughout the study period.
•
Sites are expected to review all imaging for image quality and protocol compliance.
Refer to the CALGB 40903 Site Imaging Manual for detailed image acquisition and
submission requirements.
7.2
Image submission requirements
All study imaging (mammograms and MRI exams) should be submitted to ACRIN within 1-2
business days of acquisition and accompanied by an Image Transmittal Worksheet (ITW). Please
note that all imaging must be in DICOM format.
Sites have two options for submitting the digital mammogram and breast MRI exams to ACRIN:
•
Using ACRIN’s image transfer application (TRIADTM)
•
Express mailing images on a CD-ROM or DVD
Due to the need for quick receipt and turnaround of the MRI exams, TRIADTM is the preferred
mode of image submission. TRIAD is a software application developed by the American College
of Radiology (ACR) to provide a secure web-based method of transferring and managing image
data. The TRIAD software will be provided free of charge and can be installed on one or more
computers of choice within the institutional network. The TRIAD software anonymizes, encrypts,
and performs a lossless compression of the images before they are transferred to the ACRIN
image archive in Philadelphia. Sites should initiate the TRIAD installation during the
prequalification process, prior to enrolling study patients.
Refer to the CALGB 40903 Site Imaging Manual for detailed image acquisition and
submission requirements.
7.3
Image data quality control
Sites are expected to acquire the MRI exams per the standardized MR acquisition protocol and
review all imaging for image quality and protocol compliance.
Upon receipt of the MRI exam at ACRIN, an initial QC review will be conducted by a qualified
ACRIN Imaging Technologist. The ACRIN technologist will check for missing
images/sequences, appropriate image anonymization, complete anatomical coverage of the breast
parenchyma, and absence of image artifact. Missing or discrepant image data will be
communicated to the site and the CALGB coordinating center.
All MRI exams will undergo an additional review, including compliance with the standardized
acquisition protocol, as part of the central review conducted by the UCSF Breast MRI Research
Laboratory. Information regarding the central review process is provided in Section 7.4 of the
clinical trial protocol.
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7.4
Central review of magnetic resonance imaging
Determination of radiographic response to study therapy will be determined centrally by
investigators at the University of California San Francisco Breast MRI Research Laboratory (see
Section 8.0).
MR Image data will be archived at the ACRIN Imaging Core Laboratory (see Section 7.2) and
sent from ACRIN to UCSF Breast MRI Research Laboratory for central review and quantitative
analysis. DCIS diameter will be measured in the latero-medial, antero-posterior and inferiorsuperior directions, as well as the single longest diameter measured in any plane. The direction of
measurement chosen on baseline MRI for longest will be maintained in 3-month and 6-month
MRI exams. Following verification of image quality and protocol compliance, volumetric
measurement of DCIS lesions will be performed using the signal enhancement ratio (SER)
method for quantifying contrast enhancement kinetics (see Section 13.3.4).
All volume assessments will be compared to the baseline study. Baseline images will be centrally
evaluated and categorized according to the following:
•
Conforms to study MRI protocol (y/n)
•
MRI volume assessable (y/n)
After the first 20 patients have enrolled, an analysis will be performed to assess the quality of the
baseline MRI scans.
DCIS volume measurements will be obtained from MRI data acquired at baseline, 3-month and
6-month treatment time points. A MRI report will be generated for each exam that includes the
longest diameter and volume measurements, relevant imaging technical parameters and
representative images. Following review and approval by the Imaging Co-Chair, volume
measurements will be reported on the I-059 MRI Assessment form and electronic copy of the
Volume SER report will be sent to the Statistical and Data Center at Duke University.
8.0
TREATMENT PLAN
Questions regarding treatment should be directed to the CALGB Study Chair.
Protocol Therapy will consist of 6 months of letrozole, administered orally at a dose of 2.5 mg/day.
Patients will have a bilateral MRI for disease evaluation at months 3 and 6.
Treatment with letrozole is to begin within 21 days of registration, and only after notification has been
received from the UCSF Breast MRI Research Laboratory that the baseline MRI is acceptable. If the
baseline MRI is not acceptable, the MRI must be repeated. If the second MRI is not acceptable, the
patient cannot start treatment and will be considered off study. A reimbursement form for a repeat
baseline MRI is available on the 40903 study page of the CALGB and CTSU web sites.
To ensure that MRI central review is performed in a timely manner:
•
MRI must be uploaded to the ACRIN Core Image Core Data Web site within 1-2 business days
after MRI is obtained (see Section 7.2).
•
ACRIN will forward the MRI images to the UCSF Breast MRI Research Laboratory for central
review and quantitative analysis within 1-2 business days of receipt.
•
Within 3 additional business days, the UCSF Breast MRI Research Laboratory will email the
treating physician and institutional Lead CRA with confirmation of whether or not the baseline
MRI is assessable.
At the month 3 time point, patients should continue letrozole until the UCSF central review
determination of disease status has been obtained.
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•
Patients who are found to have radiographic progressive disease (20% increase in tumor diameter)
at month 3 will be scheduled for surgery within 30 days of the second (month 3) MRI central
review and for a preoperative mammogram. Patients will continue letrozole until the day before
surgery.
•
Patients with a partial response or stable disease, based on MRI longest tumor diameter, will
continue to receive letrozole for the next 3 months and then have the month 6 MRI and
preoperative mammogram(s). Surgery will be planned within 30 days of the final (month 6) study
MRI. All patients will continue to take study drug until the day prior to surgery, whether at month
3 or at month 6.
All patients will continue to take study drug until the day prior to surgery, whether at month 3 or at
month 6, or may stop if they experience unacceptable toxicity.
8.1
Adherence
Since patients will take oral medications at home without direct supervision, we will monitor
drug compliance until the discontinuation of letrozole (the day prior to surgery) using medication
calendars. On Day 1 of letrozole therapy the patient will receive three (3) CALGB: 40903
Medication Calendars (S-078), and be instructed on how to take the medication and how to use
the calendars and to return the calendars at the month 1 clinic visit. The patient will bring the
completed calendars with her to the Month 3 clinic visit where it will be reviewed. Patients who
continue on letrozole for the second 3 months will be given three (3) more calendars and
instructed to complete and return them at the 6 month visit. Since all patients will continue
letrozole until the day prior to surgery, they should be given an additional calendar for recording
those doses and should return the calendar to a member of the study team.
It is recommended that sites should review the medication calendars with patients and inquire
about missed doses.
8.2
Quality of life participants
All patients who understand and are able to follow directions in English (as the assessment
instruments are only available in English), and have agreed to participate, will take part in
the quality of life (QOL) assessments. Please see Section 12.0 for instructions regarding
assessment administration.
8.3
Adjuvant treatment considerations
The study endpoint will not be affected by adjuvant treatment recommendations or treatment. It is
expected that decisions regarding any adjuvant treatment will be made individually based on best
practice guidelines, using informed and shared decision making between patient and provider.
8.3.1 Adjuvant radiation
General treatment guidelines for postoperative radiation, as well as recommendations for
adjuvant systemic therapy are not anticipated to be affected as a result of study participation.
It is expected that such clinical decisions will be made with the participation of the patient
and clinician according to accepted NCCN treatment guidelines for DCIS and/or current
invasive cancer. Based on these guidelines, is expected that most women who undergo
lumpectomy will be referred for adjuvant radiation. All adjuvant radiation therapy should be
documented on the C-2058 and C-2059 forms.
8.3.2 Adjuvant hormonal therapy
Published studies support consideration of tamoxifen for adjuvant treatment of DCIS
following lumpectomy and radiation. There are currently no completed studies supporting
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use of aromatase inhibitor therapy as adjuvant treatment for DCIS. Decisions regarding use
of adjuvant systemic therapy will be made by the patient and treating physician, and will not
be limited or affected by participation in this trial. There are currently no published studies
that support the use of adjuvant AI for DCIS outside of a clinical trial. All adjuvant hormonal
therapy should be documented on the C-2058 form.
9.0
DOSE MODIFICATIONS
There will be no letrozole dose reductions. The protocol does not require monitoring of liver function
tests. However, if a patient is incidentally discovered to have > grade 3 hepatic function impairment
Letrozole will be held. Resume letrozole at the previous dose when hepatic toxicity resolves to < grade
2. If letrozole is held for > 3 weeks, permanently discontinue protocol therapy.
If unanticipated grade 3 or 4 toxicity is encountered the patient will be discontinued from protocol
therapy.
10.0 DRUG FORMULATION, AVAILABILITY AND PREPARATION
10.1
Letrozole
Please refer to the FDA-approved package insert for letrozole for product information, and a
comprehensive list of adverse events.
Availability
Letrozole tablets will be provided and distributed, free of charge, by the Division of Cancer
Prevention (DCP), NCI and should be ordered using the DCP Investigational Agent Request
Form. Letrozole will be shipped via priority mail. Orders placed on Monday through Thursday
should be received within 2 business days. Letrozole supplies are not patient specific.
Letrozole is supplied as 2.5 mg, dark yellow, film-coated tablets in bottles of 30 tablets.
Storage and Stability
Intact bottles of letrozole should be stored at room temperature.
Administration
Letrozole will be taken orally, at a dose of 2.5 mg once daily without regard to meals.
Toxicities
The most common adverse events reported in recent trials with letrozole in advanced breast
cancer include hot flashes and nausea. Of concern, primarily with long-term use of aromatase
inhibitors including letrozole, are effects on lipid metabolism with subsequent cardiovascular
events and on bone resorption. Other less frequent adverse events include bone and muscle pain.
11.0 CORRELATIVE STUDIES
11.1
Evaluation of predictive and prognostic tissue biomarkers associated with letrozole
response
Conventional breast cancer treatment has consisted of surgery first followed by adjuvant
treatment (chemotherapy, hormonal therapy, or radiation). In the last decade, this algorithm has
shifted towards increased preoperative administration of systemic therapy (“neoadjuvant”
therapy) in order to leverage the potential to downsize tumors prior to surgery. In prospective
clinical trials, both chemotherapy and hormonal therapy significantly increased the lumpectomy
rate, although neither has demonstrated a survival benefit [13, 34, 35]. However, another
essential benefit of neoadjuvant therapy is that it provides real-time in vivo assessment of clinical
response as well as biologic response. This has been effectively demonstrated in recent
neoadjuvant endocrine trials.
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Neaodjuvant treatment for breast cancer and the role of biomarker studies
In the P024 trial, a study comparing neoadjuvant tamoxifen to letrozole, Ellis and colleagues
showed that Ki67 is a useful biomarker of response to endocrine therapy for invasive breast
cancer and further, that it helped identify subsets of ER(+) patients with greater response to AI
treatment [14]. Biomarker assessment in the IMPACT study (comparison of neoadjuvant
anastrazole, tamoxifen, or both) showed that degree of Ki67 reduction with endocrine treatment
correlated with the observed clinical response rate [36]. In recent years, genomic characterization
of tumors has also been shown to be a powerful predictive biomarker [37-40].
In the setting of DCIS, little is known about the in vivo responsiveness to systemic therapeutics,
particularly with respect to predictive and prognostic biomarkers. However, there are compelling
reasons to believe that DCIS poses different molecular, cellular, physiologic, and anatomic
obstacles to various systemically administered therapeutics relative to invasive cancer present in
the same breast due to an intact basement membrane. An important goal of ongoing DCIS
preoperative trials is to document the extent of molecular and cellular effects from short term
treatments on DCIS biology during the time prior to their definitive surgery. While this relatively
short duration of therapy is unlikely to eliminate the DCIS lesion and may not even substantially
alter DCIS morphology or grade, it is expected to alter molecular features, including protein
expression and modifications, providing an early indication of the degree of responsiveness of
various DCIS subsets to each therapeutic agent. These tumor cell responses may reflect
therapeutic inhibition of a general tumor cell characteristic (e.g. decline in Ki67 proliferation
index), loss or change in drug target expression (e.g. change in ER following either the
antiestrogen tamoxifen or the aromatase inhibitor letrozole), or a combination of both types of
responses.
Neoadjuvant endocrine trial in ER-positive DCIS
In a pilot study conducted at UCSF, patients with core biopsy-proven DCIS without invasive
cancer have been treated for three months prior to surgery with endocrine therapy.
Premenopausal women have been treated with tamoxifen, 20 mg PO QD, and postmenopausal
patients have been treated with letrozole, 2.5 mg PO QD. Tissue blocks for correlative studies
have been collected before and after endocrine therapy.
H and E stains of cases have shown significant change in morphology of DCIS ducts with a 3month course of neoadjuvant treatment for DCIS; three patients have shown a complete
pathological response with no further disease (DCIS or invasive cancer) in the surgical pathology
specimen. Three patients were found to have invasive cancer at surgery. An interim analysis of
the first half of the cohort showed significant changes in ER, PR, Ki67, and CD68 with treatment,
consistent with tumor response (Table1). Increase in apoptosis was not seen by the cleaved
caspase 3 assay, suggesting that increased apoptosis was not an important component of
biological effect in this study.
In neoadjuvant trials of hormonal therapy for invasive cancer, Ki67 has been shown to be a
particularly powerful independent marker of both response to treatment and long-term prognosis
[36, 41-44]. There are few published studies if KI67 as a response marker for DCIS [32, 33, 45],
but these have consistently shown a significant reduction in Ki67 with either withdrawal of
exogenous hormones or with administration of endocrine therapy. Thus assessment of Ki67 in
neoadjuvant treatment trials for DCIS appears particularly promising. Previous large studies have
shown that Ki67 as a continuous measurement (number of cells staining positive per hpf) has a
non-normal distribution, such that log transformation of Ki67 data is highly recommended for
analysis. Further, the proportional change in Ki67 may be a particularly informative endpoint for
presurgical trials in DCIS.
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Table 1. Change in biomarkers with letrozole treatment
Controls n=18
Cases n=23
Biomarkers
Mean Change1
Mean change
P2
ER (H-score)3
-55.5 + 22.2
-113.8 + 26.2
0.07
PR (H-score)3
-38.8 + 18.3
-169.2 + 18.8
0.001
Ki-674
-3.2 + 1.7
-14.4 + 3.6
0.013
CD684
-0.06 + 1.7
29.4 + 5.8
< 0.0001
capase 35
0.8 + 0.7
0.1 + 0.7
0.13
1. Data shows mean increase (positive values) or mean decrease (negative values) over 3 months in
quantitative immunohistochemical staining between diagnostic core biopsy and surgical excision. Cases
were treated with neoadjuvant anti-estrogenic therapy; controls did not undergo neoadjuvant therapy.
2. Rank-sum test, controls as referent group.
3. H-score is weighted measure of intensity and percentage of positive cells.
4. Percent of cells staining positive.
5. Number of CD68-positive macrophages per high power field within DCIS ducts.
11.1.1 Study overview
We propose a correlative component to this Phase II study of neoadjuvant letrozole for
ER(+) postmenopausal DCIS. For patients who have consented, tissue biomarkers will be
assessed at baseline. Baseline markers will be assessed on the diagnostic core biopsy
specimen; treatment markers will be assessed on the surgical excision specimen.
11.2
Objectives
11.2.1 Primary objective: To determine whether Ki67 is reduced with neoadjuvant letrozole
treatment for DCIS, and to compare the reduction in proliferation between radiographic
responders and non-responders.
11.2.2 Secondary objectives:
11.2.2.1 To identify baseline IHC and expression biomarkers predictive of response to
treatment, with response determined by the extent of Ki67 reduction. Subsets
showing the greatest reduction in Ki67 would be the most likely candidates for nonoperative treatment in future studies.
11.2.2.2 To examine whether germline polymorphisms are associated with clinical
endpoints, including treatment-related toxicity or efficacy outcomes, or with
expression of biomarkers in tumor tissue.
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11.3
Methods
11.3.1 IHC studies
The 1 diagnostic and 1 surgical FFPE tissue blocks from consenting study participants will be
submitted to the Alliance Biorepository at Ohio State University. Sections from the blocks will be
forwarded to the UCSF Cancer Center IHC Core Research Laboratory for IHC staining.
Conditions for antigen retrieval, proteolytic processing (if necessary), antibody titer, and
positive and negative controls have been developed by the UCSF IHC Research Core for
over 100 antigens, including all of those selected for testing in this proposal. Pretreatment by
microwaving slides in 10 mM citrate buffer (pH 6) for antigen retrieval will b e used. A
Ventana automated stainer is used for standard elements for all IHC assays. Positively and
negatively staining cell lines will be used as controls for all assays.
Table 2. IHC markers to be assessed in DCIS lesions
Antigen
Ab Source
Mib1 (Ki67)
Bcl-2
Coulter-Immunotech
Dako
1
2
Cleaved caspase 3
TUNEL
Dako
1
1
P16
P53
telomerase
VEGF
FGF
HIF 1
Pharmingen
Neomarkers
Novocastra
Santa Cruz
Zymed
Santa Cruz
2
2
COX-2
CD68
Biogenex
Dakocytomation
1
2
DAKO
1
DAKO
Zymed
Boehringer
Genosys
Zymed (31G7)
Res. Diagnostics
Am Diagnostics
Am Diagnostics
Abcam
Dako
Abcam
1
1
2
2
2
2
3
3
2
2
1
ER
PgR
HER2/neu
CK5/6
P53
EGFR
CD44
UPAR
PAI1
TGFCyclin D1
MMP-9
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1
2
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11.3.2 mRNA expression studies
Total RNA samples will be isolated from the diagnostic core biopsy tissue using
standard methods and assayed for quality/quantity using the RT-PCR and the Aglient 2100
BioAnalyzer. Double stranded cDNA will be prepared using random-T7 RNA polymerase
primers. Biotinylated cRNA will be prepared by in vitro transcription and then converted
back to ssDNA. The ssDNA will be fragmented and end labeled with biotin. The minimum
RNA requirement for the arrays is 100 ng total RNA. An aliquot of the fragmented cRNA is
hybridized to a test chip to confirm target quality. Hybridization signal will be obtained by
staining with phycoerythrin-streptavidin on the GeneChip Fluidics Station. If a strong,
uniform signal is obtained, then the probe will be hybridized to the GeneChip and stained as
above. Following staining, each chip will be imaged at high resolution using a fluorescent
scanner that has been optimized for detection phycoerythrin-stretptavidin. Each image will be
digitally analyzed and the signal intensity for each perfect match feature will be determined
after subtraction of the corresponding mismatch feature.
11.3.3 Genomic studies: Exploration of the correlation between the host genetic
polymorphisms of interest, specifically 4 SNPs on chromosome 14 recently identified by
GWAS (rs7158782, rs7159713, rs2369049 and rs11849538) and incidence of letrozole
induced musculoskeletal adverse events
Little is known about host pharmacogenetic predictors of response and toxicity following
anticancer therapy. Recent studies which have approached this question have primarily
focused on the impact of variability in drug metabolizing enzyme genotype and response to
therapy. For example, the relationship between response to tamoxifen and CYP2D6 genotype
has been a subject of much study and conflicting results [84]. The impact of host genotype
and response to aromatase inhibitors is much less well studied. Several investigators have
explored the relationship between SNPs in CYP19A1 (the gene coding for aromatase) and
outcomes following treatment with letrozole. These studies have yielded conflicting results
[85-86]. Recently Ingle et al. [87] have reported a GWAS study of patients on a large
cooperative group trial of adjuvant aromatase inhibitor therapy comparing anastrozole to
exemestane. This analysis identified four SNPs on chromosome 14, which were correlated
with increased incidence of musculoskeletal adverse events associated with aromatase
inhibitor therapy.
In CALGB 40903 we propose to study the SnP recently identified in the Ingle study and
validate their relationship with musculoskeletal adverse events in a population of patients
treated with the aromatase inhibitor therapy lerozole. The 6 month duration of treatment in
CALGB 40903 exceeds the typical time of onset for these adverse events. Furthermore, since
CALGB 40903 has a neoadjuvant therapy design with efficacy endpoints, we may be able to
explore relationship between host genotype (such as the CYP19A1 rs4646 polymorphism)
and response to therapy as well.
Whole blood will be obtained from consenting study participants at baseline, prior to receipt
of study treatment. The blood will be sent to the Alliance Biorepository at Ohio State
University for processing. Blood samples will be processed into plasma, PBL and DNA.
DNA quality will be assessed by UV spectrophotometry and by agarose gel electrophoresis.
All DNA samples will be stored at the Alliance Biorepository at Ohio State University until
they are distributed to the appropriate laboratory for genotyping. Samples will be genotyped
using previously established methods. Phenotypic data will be extracted from the CALGB
database by the CALGB Statistical Center. Statistical analyses will be conducted under the
direction of the responsible CALGB faculty statistician.
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These studies will include the investigation of the candidate gene variation as well as novel
high density single-nucleotide polymorphisms (SNP) platforms available to survey the
pattern of variation of the entire genome of an individual, allowing the identification of genes
that have not previously related to the pharmacology of the drugs of interest or to a certain
biological pathway. Currently, platforms with hundreds of thousands of SNPs have been
extensively used in so called genome-wide associations studies (GWAS) and do not only
provide information of the SNP pattern of an individual, but also on the quantitative pattern
on copy number variation (including loss of heterozygosity, LOH).
12.0 ASSESSMENT OF QUALITY OF LIFE AND MUSCULOSKELETAL SYMPTOMS
ASSOCIATED WITH NEOADJUVANT LETROZOLE FOR ER POSITIVE DCIS
12.1
Introduction
Therapy that blocks hormones (i.e., tamoxifen, aromatase inhibitors) is a crucial component of
treatment used to prevent cancer recurrence and reduce breast cancer-related mortality for women
with hormone receptor positive invasive disease [46] and may also decrease recurrence in women
with ductal carcinoma in situ (DCIS) [47-49]. Yet, data suggest that early discontinuation of
adjuvant hormonal therapy ranges from 23% to 40% in clinical trials [50-52] and from 15% to
50% in clinical practice settings [53-57]. Side effects are a major reason for discontinuation of
therapy.
The proposed assessment study to CALGB 40903, a phase II study of neoadjuvant letrozole for
postmenopausal estrogen receptor positive ductal carcinoma in situ (DCIS), will examine the side
effects associated with taking an aromatase inhibitor, letrozole, for 3 to 6 months and explore the
impact that these side effects have on quality of life (QOL) and medication taking behavior. This
study will provide valuable data for future, larger studies testing strategies for side effect
management, improving quality of life, and improving adherence (e.g., reducing the number of
skipped pills) to hormonal therapy for breast cancer.
Breast cancer is the leading cancer affecting women in the U.S., with an estimated 182,460 new
cases of invasive breast cancer diagnosed in 2009 [58]. Approximately two-thirds of breast
cancers are hormone-receptor positive in White women and over half are hormone-receptor
positive in African American women [59, 60]. Adjuvant hormonal therapy is a crucial component
of treatment used to prevent cancer recurrence and reduce breast cancer-related mortality for
breast cancer patients with hormone receptor positive disease [46]. For decades, tamoxifen was
the adjuvant hormonal therapy of choice. Within the past decade, however, data has emerged
showing that hormonal therapy that includes an aromatase inhibitor (AI) is more effective than
tamoxifen alone. AIs (e.g., letrozole, anastrozole, and exemestane) have become widely used and
current guidelines endorse their inclusion at some point during adjuvant hormonal therapy for
postmenopausal women with hormone receptor positive breast cancer [61]. A group of side
effects common to all of these hormonal therapy agents is menopausal symptoms, such as hot
flashes and vaginal symptoms. Data from clinical trials suggest that women taking AIs also
experience arthralgias [62-65]. There is limited data regarding the impact of these side effects on
women’s quality of life and how side effects impact adherence to adjuvant hormonal therapy.
Self-efficacy theory [66] provides a theoretical model for understanding variations in abilities to
cope with the side effects of aromatase inhibitor (AI) treatment and adhere to treatment. Selfefficacy refers to the belief that one can successfully perform a specific behavior to achieve a
particular outcome [67]. Studies in chronic pain patients show that higher self-efficacy is
associated with less pain and disability [68-70]. In a review examining the relationship between
self-efficacy and outcomes for arthritis patients, Marks [71] concluded that strategies to enhance
self-efficacy have a favorable impact on disability and overall health. Understanding the role of
self-efficacy for coping with side effects and taking medication may enable clinicians to more
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effectively intervene to improve quality of life outcomes and adherence among women taking
AIs.
This study will provide valuable preliminary data for a larger study testing strategies for side
effect management, improving quality of life, and improving adherence (e.g., reducing the
number of skipped pills) to adjuvant hormonal therapy.
12.2
Objectives and hypotheses
12.2.1 Assess side effects associated with letrozole therapy.
Hypothesis:
H1: Compared to baseline levels before starting letrozole, joint pain and menopausal
symptoms will increase among postmenopausal women taking letrozole at month 3 and
month 6.
H0: There will be no change in joint pain and menopausal symptoms among
postmenopausal women taking letrozole.
12.2.2 Examine the association between letrozole therapy associated side effects and quality of life.
Hypothesis:
H1: Greater side effects from letrozole therapy will be related to reduced quality of life and
lower self-efficacy for coping with side effects at month 3 and month 6.
H0: Side effects from letrozole will not affect QOL or self-efficacy for coping with side
effects.
12.2.3 Examine the relationship between letrozole therapy side effects and medication taking
behavior.
Hypothesis:
H1: Greater letrozole therapy side effects will be associated with poorer adherence to
letrozole therapy and lower self-efficacy for taking hormonal therapy as prescribed.
H0: Greater side effects from letrozole will have no effect on adherence to letrozole or selfefficacy for taking hormonal therapy as prescribed.
12.3
Design and procedures
The accrual goal for this quality of life and musculoskeletal symptoms substudy is 106 women.
All women enrolled in the 40903 treatment trial, and who understand and are able to follow
directions in English will be asked to participate.
Procedure: Participants in CALGB 40903 will be asked if they are interested in hearing more
about the QOL assessment study. If a woman indicates that she is interested in hearing more
about the study, then the study will be described in more detail and the woman will be asked if
she would like to participate. Informed consent for these assessments will be part of the consent
for the overall study, with an ‘opt-out’ question.
After informed consent is obtained, the participant will complete these questionnaires before
starting treatment with letrozole. The questionnaires to be completed include measures of
treatment side effects (pain, menopausal symptoms), self-efficacy for managing side effects and
adhering to hormonal therapy, beliefs about hormonal therapy, adherence to hormonal therapy,
and quality of life.
At the 1, 3 and 6 month study visits the same questionnaires administered at baseline (prior to the
start of letrozole therapy) (MENQOL, BPI-short form, AIMS, FACT-G and Self-Efficacy for
Coping with Side Effects) and the BMQ and MMAS form (total of 7 forms). Only patients who
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continue to receive letrozole therapy for the second 3 months will complete the montt 6 QOL
forms. At the final visit, 6 months post completion of surgical resection, or for patients who do
not undergo surgery, 6 months after the end of letrozole therapy only the FACT-G Scale Form
(C-650) will be completed for assessment of QOL.
Measures
Objective 1: Assess menopausal side effects and pain associated with hormonal therapy,
letrozole.
Menopause Specific Quality of Life Questionnaire (MENQOL) (CALGB: 40903 Menopause
Specific Quality of Life Questionnaire[MEMOQOL] C-2033): The MENQOL [72]
Intervention version is a 32-item self-report questionnaire that assesses the occurrence and
severity of menopausal symptoms in the past week. It assesses four symptom domains: physical,
vasomotor, psychosocial, and sexual. All items follow the same format in which the woman is
asked whether she has experienced the item in the previous week. If “no”, she goes to the next
item. If “yes”, she indicates how bothered she was by the item on a 7-point Likert scale ranging
from 0=not at all bothered to 6=extremely bothered. Each MENQOL item is recoded as follows:
If NO =
IF Yes:
1
Bothered 0 =
2
Bothered 1 =
3
Bothered 2 =
4
Bothered 3 =
5
Bothered 4 =
6
Bothered 5 =
7
Bothered 6 =
8
The score for each domain is the mean of the recoded items forming that domain and ranges from
1 to 8. The scale authors suggest that 1.0 represents the Minimal Clinically Important Difference
on the MENQOL Intervention version.
Brief Pain Inventory (BPI-SF) (CALGB: Brief Pain Inventory Form [Short Form] C-358):
The Brief Pain Inventory short form will assess levels of pain and the degree to which pain
interfered with daily activities in the past week [73]. The BPI asks women to rate their pain
intensity at its worst, least, and average by using a numeric scale of 0 to 10. Each rating is
bounded by “no pain” at the 0 end and “pain as bad as you can imagine” at the 10 end. Using
similar 0 to 10 scales, patients are also asked to rate the extent to which their pain interferes with
7 quality of life domains that include general activity, walking, mood, sleep, work, relations with
other persons, and enjoyment in life. These scales are bounded by the words “does not interfere”
and “interferes completely.” The score for pain intensity is the average of the 3 pain intensity
items and ranges from 0 to 10. The score for interference is the average of the 7 interference
items and ranges from 0 to 10. The Initiative on Methods, Measurement, and Pain Assessment in
Clinical Trials (IMMPACT) suggests that 1.0 represents the Minimal Clinically Important
Difference on pain intensity and interference.
Pain (AIMS Index) (C-2088): Pain and stiffness levels will also be assessed using items fro
Arthritis Impact Measurement Scales (AIMS2)[74]. The AIMS2 is a validated measure for
assessing health status, including arthritic symptoms, in subjects with rheumatic diseases and is
similar to measures previously used to assess symptoms in breast cancer patients who had joint
symptoms related to aromatase inhibitor therapy [75]. The AIMS2 instrument is a self-
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administered questionnaire which consists of 78 items, including subscales of 4 or 5 items for
each of the following: Mobility Level, Walking and Bending, Hand and Finger Function, Arm
Function, Self Care Tasks, Household Tasks, Social Activity, Support from Family and Friends,
Arthritis Pain, Work, Level of Tension, and Mood. In total, the questionnaire takes approximately
20 minutes to complete. This study will use the 5 items from the AIMS2 (#38-42) pertaining to
arthritis pain. Items are rated from 0 (none or no days) to 5 (severe or all days). The items will be
summed (possible range of 1 to 25). For stiffness, we will include 4 items modeled after the BPI
pain intensity scale.
Objective 2: Examine the association between letrozole therapy side effects and quality of life
and psychosocial functioning.
Functional Assessment of Cancer Therapy - General (FACT-G) (CALGB: FACT-G Scale
Form C-650): The FACT-G [76] total score will assess quality of life in four domains: physical
well-being, functional well-being, emotional well-being, and social well-being. The FACT-G
includes 28 items rated 0 (not at all) to 5 (very much). Items are summed to create total score. For
copyright information, go to http://www.facit.org/qview/qlist.aspx.
Self-Efficacy for Coping with Side Effects (CALGB: 40903 Managing Medication Side
Effects Self Efficacy C-2032): To assess women's confidence regarding their ability to cope with
side effects, a modified version of a standard self-efficacy scale will be used [77]. This scale
consists of 8 items each of which is presented as a question. Women will rate each belief on a 10point scale anchored on the ends by 1=not certain and 10=very certain. The 8 items are averaged
to create a total self-efficacy scale. The standard self-efficacy scale on which the scale in the
current study was based has a Cronbach’s alpha of .75, M=5.20 (SD=2.14), and a test-retest
reliability of .87.
Objective 3: Examine the relationship between letrozole therapy side effects and medication
taking behavior for therapy.
Medication Taking Behavior (MMAS) (CALGB: 40903 Morisky Medication Taking Scale –
Modified C-2031): A modified version of the Morisky Medication Adherence Scale (MMAS)
[78] will be used to assess medication-taking behavior related to hormonal therapy (e.g,
forgetting to take medication, skipping doses, reducing or stopping medication when feeling
better, and reducing or stopping medication when feeling worse). The Morisky Medication
Adherence Scale is probably the most widely used self-report measure of medication nonadherence. The original four-item MMAS was recently expanded to the eight item version
included in this study [78-79]. Each of the eight items assesses a medication-taking behavior
related to adherence including forgetting to take medication, skipping doses, stopping medication
when feeling better, and stopping medication when feeling worse. Items capture both intentional
and unintentional non-adherence. The MMAS has demonstrated excellent validity and reliability
in patients with chronic diseases [78-81]. This scale includes the 8 items from the MMAS and an
additional 8 items specifically relevant to hormonal therapy. Each of the 16 items is rated on a 1
(very often) to 5 (never) scale. Item ratings are summed to create a total score. Pre and posttreatment means are unavailable for the MMAS-modified.
Beliefs about Medicines Questionnaire (BMQ) (CALGB: 40903 Beliefs about Medicine
Questionnaire C-2030): The Beliefs about Medicines Questionnaire Specific (BMQ) [79] can be
modified to refer to specific medications. A modified BMQ Specific, including the original five
items that assess the perceived necessity of hormonal therapy, the 5 original items that assess
concerns about hormonal therapy, and 5 additional questions pertaining to concerns about cancer
progression will be used. For the Perceived Necessity and Medication Concerns scales, patients
rate their degree of agreement with each statement on a 1 (strongly agree) to 5 (strongly disagree)
scale. The individual ratings of the 5 perceived necessity items are summed to create a total
Perceived Necessity score (possible range 5 to 25). Similarly, the ratings of the 5 concern items
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are summed to create a total Medication Concerns score (possible range 5 to 25). The Concern
about Cancer Progression scale includes 4 items rated on a 6 point Likert scale (rated 1 to 6) with
responses tailored to each question. These 4 items are summed to create a total Concern about
Cancer Progression score. A single Perceived Risk of Progression item has been added to the
Concerns about Cancer Progression Scale in order to assess patients’ perceived risk that their
DCIS will progress in the next 5 years. This item is rated on a 1 (no chance) to 7 (certain to
happen) scale.
12.4
Rationale and description of scoring the measures used
Quality of life will be assessed 1) in general, using the FACT-G and 2) with respect to
menopausal symptoms, using the MENQOL. The FACT-G was chosen for the study because it is
a commonly used and valid instrument to determine quality of life in cancer patients, including
those undergoing treatment. Higher scores on the FACT-G indicate worse quality of life. The
MENQOL-Intervention version was chosen for this study because it is a self-administered, brief
questionnaire that assesses the quality of life experience during menopause and during treatment
with hormonal therapy. Higher scores on the MENQOL indicate more bothersome menopausal
symptoms.
Joint and muscle pain is now a well-recognized side effect of aromatase inhibitor therapy. Two
measures to assess joint pain where chosen. One to assess overall pain and the extent to which the
pain interferes with daily activities, the Brief Pain Inventory – short form (BPI-SF), and the other
to specifically assess arthritic pain, the AIMS2 Osteoarthritis Index. Higher scores on the BPI-SF
and the AIMS2 indicate greater pain.
Also included is a modified version of a standard self-efficacy scale to determine a woman’s
confidence in their ability to cope with side effects, with the hypothesis that women who feel less
able to cope with side effects will report more severe side effects, have worse quality of life, and
be more likely to discontinue therapy.
In order to explore medication taking behavior, a modified version of the Morisky Medication
Adherence Scale (MMAS) will be used. Higher scores on the MMAS indicate better adherence to
therapy, such as skipped doses or stopped medication.
A modified version of the Beliefs About Medicines Questionnaire (BMQ) Specific, will be used
to determine how important the patient feels that taking their medication is to their wellbeing.
Within the BMQ Specific, there two subscales: the Perceived Necessity score, which assesses
patients’ beliefs about the necessity of the prescribed medication for controlling their illness and
the Medication Concerns score, which assesses concerns about the potential adverse
consequences of taking the medication. Lower scores indicate higher perceived necessity and
more concerns abut the medication. Items to assess perceived risk of cancer progression were
added, on the premise that patients who perceived greater risk of progression will be more likely
to adhere to their medication. Items on this scale range from 1 to 6, with higher scores indicating
a greater perceived risk of DCIS progression.
12.5
Risk/benefit of participation
There are minimal risks involved in being a subject in this assessment study. There is a minimal
psychological risk that participants may be made anxious by answering questions regarding side
effects, perceived cancer recurrence risk, and quality of life.
There are no immediate benefits to participants. However, increased knowledge about the side
effects of hormonal therapy and their impact on quality of life and adherence will have long-term
relevance for developing strategies to improve side-effect management and adherence to
hormonal therapy. These data would also have relevance for healthcare providers discussing
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hormonal therapy with breast cancer patients. The risk-benefit ratio is such that the potential
benefits outweigh the risks.
13.0 CRITERIA FOR RESPONSE, PROGRESSION AND RELAPSE
13.1
Radiographic response criteria of DCIS index lesions
All measurable ipsilateral DCIS index lesions identified as between > 1 and < 7 cm in longest
diameter at baseline, using digital mammography followed by imaging techniques. Preliminary
data suggest that mammographic findings are not altered significantly with 3 months of letrozole,
thus MRI findings will be the primary criteria by which treatment response will be assessed.
Evaluation of response will be based on RECIST criteria (version 1.1) according to the following
response categories.
13.1.1 Complete response (CR): Disappearance of all DCIS index lesions, on MRI. Patients with
radiographic CR at 3 months per MRI will continue on letrozole for an additional 3 months,
and will undergo the month 6 MRI and surgical excision within 30 days of month 6 MRI
review.
13.1.2 Partial response (PR): At least a 30% decrease in the longest diameter (LD) on MRI, taking
as reference the baseline largest single LD. Patients with radiographic PR at 3 months will
continue on letrozole for an additional 3 months, and will undergo the month 6 MRI and
surgical excision within 30 days of the month 6 MRI review.
13.1.3 Progression of disease (PD): At least a 20% increase in the longest diameter (LD) taking as
reference the baseline largest single LD on MRI. If PD is determined at 3 months, the patient
will continue on letrozole, but will be scheduled for surgical excision. Surgical excision must
be performed within 30 days of the central MRI review reporting of PD. The letrozole will be
taken until the day prior to surgery.
13.1.4 Stable disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to
qualify for PD taking as reference the baseline largest single LD, on MRI. If SD is
determined at 3 months, the patient will continue on study drug for an additional 3 months
and will undergo the final study MRI at 6 months.
13.2 Guidelines for evaluation of measureable disease
13.2.1 Clinical Examination: DCIS is generally nonpalpable at presentation, and patients with
palpable DCIS or adenopathy will be excluded from the trial. Thus, evaluation on clinical
examination will not be a measureable endpoint for this study.
13.2.2 Mammography: All study mammograms will be performed on a digital mammography unit.
The second mammography imaging study will be performed to coincide prior to surgery,
after 6 months of letrozole (or, after 3 months if MRI progression is observed at 3 months. At
a minimum, two standard screening views (CC and MLO) will be obtained, with additional
views obtained at the discretion of the breast imaging team.
Mammographic datapoints to be collected at baseline and following completion of study drug
include:
1. Largest measured diameter of DCIS extent, as visualized by extent of calcifications on
mammography on CC or MLO views, and reported on the Mammogram Tracking Form
C-2059 and submitted mammogram reports.
2. Extent of disease on mammography (unifocal, multifocal, multicentric, diffuse).
3. Quantification of mammographically-detected change from baseline to post-treatment
mammogram.
4. BIRADS breast density score.
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13.2.3 Ultrasound (US): DCIS is generally not evaluated by ultrasound and therefore, ultrasound
cannot be used as evidence of measurable disease at study entry (see Section 4.8). However,
if ultrasound is performed, the presence of a mass will exclude patients from participation in
the trial. Ultrasound findings are not an endpoint of the study.
13.2.4 Breast MRI: Baseline, 3-month and 6-month MRI procedures are to be planned for each
patient. The MRIs will be performed on ACRIN accredited scanner(s) (5.1.2) using the same
imaging parameters/protocol as the study MRI parameters/protocol described in Section 7.1.2
and detailed in the CALGB 40903 Site Imaging Manual which is available in Appendix I and
is available on the 40903 study page of the CALGB and the CTSU web sites. The MRIs will
be performed at the following points:
•
MRI1: (baseline) before the patient has been registered to the study. However, if baseline
MRI is not acceptable per UCSF Breast MRI Research Laboratory, the MRI must be
repeated. If the second MRI is not acceptable, the patient cannot start treatment and will
be considered off study.
•
MRI2: At 3 months after starting AI therapy
•
MRI3: At 6 months after starting AI therapy if no progression at 3 months
Please see Section 7.1.2 for the ACRIN MRI imaging acquisition requirements and Sections
7.2 and 8.0 for image submission requirements.
All MRI and mammography studies must be uploaded to the ACRIN study site within 1-2
business days of study completion. ACRIN will transmit the MRI data, within 1-2 business
days, to the University of California San Francisco Breast MRI Research Laboratory. DCIS
lesions will be evaluated centrally by the UCSF CALGB 40903 designated study radiologist.
The 3-month MRI study will be reviewed within 3 business days. The University of
California San Francisco Breast MRI Research Laboratory will email the determination of
response or progression to the treating physician and the Lead CRA at each site. Patients will
remain on letrozole until the day prior to surgery.
MR Image Interpretation
Image interpretation will be performed according to the ACR BIRADS – MRI (2003
Edition). The breast MRI lexicon provides a common language for describing architectural
features, time course of contrast enhancement and disease extent. Radiologic interpretation of
MR images will assess lesion size, shape, extent, distribution and kinetics as well as other
characteristics including breast density and T2 appearance.
Quantitative MR Image Analysis
The primary criterion for continuation on study is change in maximum LD of the target
lesion compared to baseline. Patients with disease progression at 3 months (see Section
13.1.3) will be referred for surgery. Patients who have not demonstrated progression will
continue on letrozole therapy for an additional 3 months.
The primary quantitative measurement to be made by MRI is an estimate of tumor volume.
The existing malignancy criteria for defining tumor volume are based on receiver operating
characteristic (ROC) optimization in a retrospective group of 180 patients with invasive
cancer with histopathologic correlation who did not undergo neoadjuvant treatment. Reoptimization of malignancy criteria for DCIS post-neoadjuvant histopathology will be
performed in a training set of 50 patient studies acquired at UCSF. Secondary measurements
will consider enhancement characteristics of the tumor, including peak SER value, spatial
distribution, and volume fractions of SER ranges. Measurements of these quantities will be
compared over the course of treatment.
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Tumor volume calculation is based on the signal enhancement ratio (SER) technique
developed at UCSF and used in the ACRIN 6657 multi-center clinical trial. High spatial
resolution contrast-enhanced MRI is performed using the three-time point method described
above acquiring images before, immediately following contrast injection, and in the late
phase of contrast passage, using a small molecular weight gadolinium-containing contrast
agent, administered intravenously. Image analysis is performed by computing the SER value
at every eligible pixel in the image, where each pixel represents an approximately 1 x 1 x 2
mm3 volume of tissue, or voxel. Eligible voxels to the SER calculation include those that
meet an initial percent enhancement (PE) threshold of 70% and 35%, defined as PE = [(S1S0)/S0] x 100, where S0 and S1 represent the signal intensities (SI) of each voxel in the precontrast and first post-contrast images, respectively. SER is defined as (S1-S0)/(S2-S0),
where S0 and S1 are as defined previously and S2 represents the signal intensity in the late
post-contrast image.
14.0 REMOVAL OF PATIENTS FROM PROTOCOL THERAPY
14.1
Duration of treatment
Patients will undergo preoperative treatment with letrozole for a projected duration of 6 months,
unless interval 3-month MRI demonstrates radiographic progression of disease (PD).
14.2
Extraordinary medical circumstances
If, at any time the constraints of this protocol are detrimental to the patient's health and/or the
patient no longer wishes to continue protocol therapy, protocol therapy shall be discontinued. In
this event:
• Notify the Study Chair.
• Document the reason(s) for discontinuation of therapy on Forms C-2055.
• Follow patients according to Section 6.1.2.
15.0
STATISTICAL CONSIDERATIONS
This is a single-arm Phase II trial in which patients will receive 6 months of neoadjuvant
letrozole, following which patients will undergo surgery. Patients are scheduled for interval
imaging at 3 months. Patients with radiographic progression at 3 months will undergo surgery
rather than continuing on drug.
15.1
Treatment study statistical plan
15.1.1 Endpoints
Primary endpoints
The primary study endpoints are 3-month and 6-month radiographic tumor volume. The first
endpoint is denoted as V3, defined as the difference between baseline (pre-treatment) and 3month tumor volume with each measured by MRI. The second is denoted as V6, defined as
the difference between baseline (pre-treatment) and 6-month tumor volume with each
measured by MRI.
Secondary endpoints
In addition to the primary endpoint, data will be collected on additional radiographic
endpoints, surgical/pathological outcomes, adverse events, and QOL measures. These will
include the following:
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*
Radiographic response of MRI-measured tumor diameter: corresponds to the 3- month
and 6-month measures of change in tumor volume, except the analysis will be on
maximum tumor diameter, rather than volume.
*
Radiographic response as measured by mammography: corresponds to the 3- month and
6-month radiographic response of tumor diameter, except measured by mammography.
*
Type of primary surgery (mastectomy, lumpectomy).
*
Number of re-excisions required to obtain clear margins.
*
Extent of residual DCIS post surgery: the maximal size of DCIS tumor (cm) determined
pathologically.
*
Presence of invasive cancer at surgery: the maximal size of invasive tumor (cm)
determined pathologically.
*
Size of margins at surgery: size of the smallest margin (mm) at surgery.
*
Treatment-related adverse events.
15.1.2 Sample size with power justification
Data from a pilot study conducted at UCSF on the use of neoadjuvant hormonal therapy for
the treatment of DCIS in 22 women with ER-positive disease showed a mean 3-month
decrease in tumor volume of 0.87 cm3 (standard deviation=1.7). This corresponds to a mean
difference of 0.5 standardized units. The 3-month and 6-month response in MRI tumor
volume, V3 and V6, will be estimated by calculating 95% confidence intervals around the
mean change for each. Based upon the pilot data, 96 patients accrued to the current trial will
allow us to estimate the true mean change to within +/- 0.34 cm. To allow for a 10% dropout
rate, the study will accrue 106 patients, which would give 96 assessable patients. Patients will
be considered “assessable” only if the MRIs obtained at all three timepoints (baseline, month
3 and month 6) are classified as acceptable by the 40903 study radiologist(s) at the UCSF
Breast MRI Research Laboratory. With an anticipated accrual rate of 3 or 4 patients a month
total accrual should be achieved in 32 months.
15.1.3 Plan of analysis
Primary:
We will estimate the 3-month and 6-month MRI volume response, V3 and V6, using 95%
confidence intervals (CI) around the mean change for each. To determine whether tumor
change during the first 3 months of treatment (V3) predicts tumor change between months 3
and 6, we will use simple linear regression to regress the 3- to 6- month changes on V3, with
multiple imputation for missing data. MRI response based on tumor volume will be analyzed
as a continuous variable.
Secondary:
Similar to the primary analysis, we will regress 6-month MRI response on 3-month response
to determine whether early (3-month) tumor behavior predicts later (6-month) tumor
behavior based on change in MR maximum diameter and mammographic extent of disease.
To assess the secondary endpoints of radiographic response using MR tumor diameter and
mammographic diameter, we will repeat the analyses above on these secondary endpoints.
We assume that change in MRI assessment of tumor diameter and change of mammographic
assessment of tumor diameter are normally distributed. If distributions are not, however, we
will transform the data as appropriate. We will repeat the primary analysis on each of the
secondary endpoints listed above. We will estimate the correlation in pre- and post-treatment
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change between MRI tumor diameter and pathologic tumor size by calculating the Pearson
correlation coefficient and its 95% confidence interval.
To determine the proportion of patients who undergo as the definitive surgical procedure
either mastectomy or lumpectomy, we will use exact binomial methods to calculate the
proportion and 95% confidence interval for each surgical procedure. We will measure the
secondary endpoint of re-excision as the proportion of patients who required re-excision. We
will calculate using binomial methods the incidence and 95% confidence intervals of the
proportion by surgical procedure. Presence of invasive cancer will also be analyzed using this
approach.
Other secondary endpoints that are measured on a continuous scale include: extent of residual
DCIS post surgery, extent of invasive cancer and size of margins at surgery. We will describe
the mean and standard deviation of each. The type and severity of treatment-related adverse
events will be tabulated by treatment duration (3 versus 6 months). One interim and one final
analysis are planned at 50% and 100% of information, respectively.
We will tabulate types of adjuvant therapy by modality for patients registered to this study.
15.2
Correlative science statistical plan
15.2.1 Evaluation of predictive and prognostic tissue biomarker associated with letrozole
response
Separate analyses will be performed on two groups of biomarkers. The first group will
consist of response biomarkers (Ki67, bcl2, caspase 3, CD68) which are expected to be
altered from baseline as a result of therapy. The second group is comprised of candidate
predictive markers which may have value in identifying those patients most likely to have the
best biological response (reduction in Ki67) to AI in DCIS.
15.2.2 Response/Monitoring markers
Studies have shown that Ki67 values are not normally distributed, particularly following
endocrine treatment [36, 44]. Thus, a nonparametric test for repeated measures, the Wilcoxon
signed rank test, will be used to determine whether Ki67 scores are lower after treatment than
they were before treatment for the 96 patients in the study. Differences in Ki67 percentages
in the pilot study were approximately normally distributed, so that a paired t-test was used for
analysis of pilot data. In the initial study of 23 patients, treatment lowered Ki67 scores by
10% on average (sd 9%). Using 9% sd, we would be able to detect a 5% difference in Ki67
score after treatment in a sample of 50 patients with paired baseline and post-treatment
samples by paired t-test. For the proposed study, we will examine the distribution of Ki67
differences in the data to see if normality of distribution is still a reasonable assumption. If
the assumption of a normal distribution is not met, the signed rank test comparing Ki67 at
baseline and after treatment will be used for the analysis. It is expected that power using the
nonparametric test will be slightly less than that for the paired t-test.
This same approach will be used for the exploratory analysis of other monitoring biomarkers
(bcl2, caspase 3, CD68), but will be hypothesis generating in scope. Although some
biomarkers are expected to change significantly with treatment, the analysis is not powered to
specifically detect change in other biomarkers.
15.2.3 Predictive markers
Secondary analyses are focused on determining whether baseline marker values can be used
to predict change in Ki67. We will use recursive partitioning methods to select which of the
markers and optimal cutpoints for each marker to predict (1) change in Ki67 as a continuous
variable and (2) whether the amount of change is above or below the median of all Ki67
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changes. Recursive partitioning does not require any assumptions about the distribution of
the Ki67 change or the predictive markers. The R implementation of recursive partitioning,
rpart, includes cross-validation to help ensure that the classification tree is not over
determined, i.e. the method ensures that the tree is trimmed to an optimal subset of markers
and cutpoints for prediction of Ki67 differences or Ki67 difference category (above or below
median). With 50 cases we should be able to define a classifier that uses up to 5 predictors
reliably (using the rule-of-thumb of 10 observations per variable for prediction).
15.2.4 Identification of unique genes associated with response group
Identified predictors of response will be developed using the data from expression studies.
Once the micoarray data have been generated, files with the unadjusted expression data will
be analyzed. Supervised clustering using the response group (“good” vs “poor”). In addition,
unsupervised clustering will be performed to identify clusters based on differential gene
expression by using available methods with the R statistical software package (http://cran.rproject.org). In addition to the primary clustering analysis based on all measured genes, we
will perform secondary bootstrap-resampled cluster analyses using only the genes in
pathways of interest (e.g. cell cycle pathway, apoptosis, inflammation, angiogenesis and
differentiation). Table 1 shows the power and the required samples under significance
analysis of microarray (SAM) using t-tests. For example, assuming the acceptable rate of
false positive genes is 1% and the fold difference between the groups is 2.0, we will need to
have a sample size of 15 patients to have 80% power to identify the genes significantly
different between groups (n=15 and n=17 for 85% and 90% -power respectively).
Table 1. Sample size considerations to detect genes differentially expressed between
groups.
% False
positives
Fold Differences
80% Power
85% Power
90% Power
1.00%
2
14
15
17
1.50%
2
13
14
16
2.00%
2
12
13
15
15.2.5 Expected outcomes/potential pitfalls of the study design
Limitation of tissue: The most significant potential limitation of the study is that tissue may
be of insufficient quality or quantity to allow testing of all biomarkers of interest. Ideally,
each case will yield forty 10um sections, but a lower number of sections will mandate
parsimonious use of sections for biomarker assessment. Particular effort will be made to
ensure that the same markers are performed on matched baseline and treated specimens.
When possible, double staining of slides with two antibodies will be preferred and attempted.
Priority status assigned to each antibody is noted in Table 2 in Section 11.3.1.
Controlling for treatment-independent biomarker variation: Biomarker variations may
be encountered between pre-treatment and post-treatment samples that may be independent
of treatment and potentially due to 1) sample heterogeneity, 2) influence of time or biopsy
injury, or 3) effect of specimen size on adequacy of tissue fixation. As part of our preliminary
studies, we have collected 20 paired cases of core biopsy and excision specimens in patients
diagnosed with DCIS who did not undergo preoperative treatment and will plan to collect 20
more controls.
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15.3
Statistical considerations for associations studies based on germline polymorphisms
The analyses will be primarily limited to those patients who have self-declared their race as white
and their ethnicity as non-hispanic. Based on the experience from a number of GWAS studies
CALGB investigators have found, that in absence of geno-wide SNP coverage, this race and
ethnicity filter is a reasonable surrogate marker for identifying a genetic European subset. It is
expected that 85% of the patients will self-declare as white and non-hispanic. Furthermore it is
expected that 85% of the patients will provide consent and DNA usable for genotyping. Thus, the
expected sample size, assuming N=96 patients will register to the study, will be N=70.
The primary question to study in this patient population is the pharmacogenomics of letrozole
induced musculoskeletal adverse event (MS-AE). This will be primarily accomplished by
validating SNPs implicated in letrozole induced MS-AE reported by Ingle et al [87]. Among the
four (three typed and one imputed) SNPs discussed in this paper, three have a relative minor
allele frequency (MAF) of about 0.09. Assuming that the probability of the event of interest is
0.3, the power of detecting a genotype relative risk (GRR) of 2.2 at the one-sided level of 0.05
under an additive model is about 0.7.
The requisite analyses are more complicated than the case-control type analysis considered in the
power calculation as the time of onset of pain is potentially subject to informative censoring
mechanisms. Specifically, by design, the length of therapy is dependent on clinical outcome. The
CALGB Statistical Center has extensive interest and investment in this research area specifically
in the study of pharmacogenomics of bevacizumab induced hypertension (CALGB 80303, 90401
and 80405), docetaxel induced neutropenia (CALGB 90401), paclitaxel (CALGB 40101) and
gemcitabine induced neutropenia (CALGB 80303). This expertise will be relevant in studying the
pharmacogenomics of drug induced toxicity in this study.
In addition, we may use the DNA collected to conduct a genome-wide association study (GWAS)
to identify novel candidates or as next generation sequencing platforms become more cost
effective consider exome or whole-genome sequencing.
All SNPs will be evaluated for deviation from Hardy-Weinberg. In absence of a hypothesis, the
association analyses will be powered for allele dosing (i.e., additive) effects. To this end, the
Cochran-Armitage test (for binary endpoints), Jonkheere-Terpstra test (for quantitative traits
including biomarker or gene expressions in serum or tumor RNA) and the Cox score test (for
censored time-to-event outcomes) will be used to quantify marginal associations. Multivariable
models, with molecular, clinical and demographic variables, will be constructed using conditional
inference trees and random forests.
All statistical analyses will be carried out by members of the CALGB Statistical Center under the
direction of the appropriate CALGB faculty statistician. The R Statistical environment along with
extension packages will be used for all analyses.
15.4
Quality of life assessment statistical plan
15.4.1 Overview of the QOL evaluation
The QOL assessment study is designed to investigate the following objectives, to assess side
effects associated with letrozole therapy, to examine the association between letrozole
therapy associated side effects and quality of life and to examine the relationship between
letrozole therapy side effects and medication taking behavior.
A total of 96 patients are expected to complete the treatment study. All
registered to the treatment study will have the chance to participate the
study. QOL measures (including MENQOL, BPI-SF, BMQ-Modifed,
FACT-G, and Self-Efficacy for Coping with Side Effects) will be taken
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patients who are
QOL assessment
MMAS, AIMS,
at baseline (pre-
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treatment), Month 1, Month 3 and Month 6. The medication taking behavior measures
(including MMAS and BMQ) will be taken at Month 1, Month 3 and Month 6.
15.4.2 Power analysis of QOL assessment
Ninety six patients will be expected to complete the treatment study. Considering patients
may not consent to QOL study and the consenting patients may have missing endpoints, we
assume 90% of patients (86 patients) will complete the QOL study.
In objective 1, it is hypothesized that compared to baseline levels before starting letrozole,
joint pain and menopausal symptoms will increase among postmenopausal women taking
letrozole at month 3 and month 6. The primary endpoints are 1 month, 3 month and 6 month
changes of the MENQOL (4 domains including physical, vasomotor, psychosocial and
sexual), BPI (pain intensity and pain interference) and AIMS2 (pain with 4 additional items
for stiffness) and measures, defined as the difference between baseline and 3 month
measurements, difference between baseline and 6 month measurements respectively. The
sample size calculation and power analysis will be adjusted to account for multiple
comparisons. The analysis involves changes at two time points of 8 endpoints. Using a
Bonferroni correction, a type I error rate of approximately 0.003 will be used for these
comparisons. With 86 patients, a medium effect size of 0.394 is detectable with 80% power
at 0.003 level of significance using one-sided one sample t-test.
In objective 2, it is hypothesized that greater side effects will be related to reduced quality of
life and lower self-efficacy for coping with side effects at month 1, month 3 and month 6.
The correlation of side effects (four domains in MENQOL including physical, vasomotor,
psychosocial and sexual, 2 scales in BPI including pain intensity and pain interference) with
medication taking behavior (total score of the MMAS) will be explored. For the purpose of
power analysis, all these endpoints are assumed to be continuous variables and follow a
normal distribution after transformation. The Fisher’s z transformation method will be used
to test whether the Pearson’s correlation coefficient is greater than zero, this is equivalent to
testing the regression coefficient greater than zero from a linear model with quality of life
and psychosocial functioning as outcome and side effects variables as a single predictor. To
control the family-wise type I error at 5% level, with 24 planned tests (the correlation of 12
paired variable in two time points), the Pearson’s correlation coefficient will be tested at a
one-sided significance level of 0.002 by Bonferroni adjustment. At each measurement time
point, with 24 paired measures, the study has 84% power to reject the null hypothesis
H0:pho=0 under the alternative hypothesis H1: rho<-0.4 at a one-sided significance level of
0.002.
In objective 3, it is hypothesized that greater side effects will be associated with poorer
adherence to letrozole therapy and lower self-efficacy for taking medication at month 1,
month 3 and month 6. The correlation of side effects will use (four domains in MENQOL
including physical, vasomotor, psychosocial and sexual, 2 scales in BPI including pain
intensity and pain interference) with medication taking behavior (medication taking behavior
total score). All these endpoints are assumed to be continuous variables and follow a normal
distribution after transformation. The Fisher’s z transformation method will be used to test
whether the Pearson’s correlation coefficient is greater than zero, this is equivalent to testing
the regression coefficient greater than zero from a linear model with medication taking
behavior and self-efficacy as outcome and side effects variables as a single predictor. To
control the family-wise type I error at 5% level, with 24 planned tests (the correlation of 12
paired variable in two time points), the Pearson’s correlation coefficient will be tested at a
one-sided significance level of 0.002 by Bonferroni adjustment. At each measurement time
point, with 24 paired measures, the study has 84% power to reject the null hypothesis
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H0:pho=0 under the alternative hypothesis H1: rho<-0.4 at a one-sided significance level of
0.002.
15.4.3 Analytic methods
Objective 1
Descriptive statistics (frequencies, mean, median, standard deviation) will be computed for
menopausal symptoms (MENQOL) and pain (BPI and AIMS2) and for the changes of
MENQOL and pain by assessment time. One-sample t-test will be used in the change of each
MENQOL and pain endpoints to check if the changes are significant.
Objective 2 and objective 3
Descriptive statistics (frequencies, mean, median, standard deviation) will be reported for
each endpoint by assessment time. Pearson’s correlation coefficients between paired
measures will be calculated as well as its 95% confidence intervals. The linear relationship
between side effects and quality of life as well as psychosocial functioning in Objective 2,
and the linear relationship between side effects and medication taking behavior as well as
self-efficacy for taking medication in Objective 3 will be evaluated further using a linear
regression model. In addition, multivariate regression will be considered to derive a
composite prediction from all side effects endpoints to more accurately predict the quality of
life and psychosocial functioning for Objective 2 or predict the medication taking behavior
and self-efficacy for taking medication for Objective 3. A subset of side effects predictors
will be selected by the strength of their univariate association with the predicting variables.
These predictors will be included in the multivariate analysis with variable selection
algorithms to select the final linear regression model.
16.0 EXPEDITED ADVERSE EVENT REPORTING
Investigators are required by Federal Regulations to report serious adverse events as defined
below. CALGB investigators are required to notify the CALGB Central Office, the Study Chair,
and their Institutional Review Board if a patient has an adverse event requiring expedited
reporting. All such events must be reported in an expedited manner using the NCI Adverse Event
Expedited Reporting System (AdEERS). The descriptions and grading scales found in the NCI
Common Terminology Criteria for Adverse Events (CTCAE) version 4.0 will be utilized for
reporting. All treatment areas should have access to a copy of the CTCAE version 4.0 as
appropriate. A copy of the CTCAE version4.0 can be downloaded from the CTEP web site
(http://ctep.cncer.gov).
In the rare event when Internet connectivity is disrupted, a 24-hour notification is to be made to
the NCI by telephone at 301-897-7497. An electronic report MUST be submitted immediately
upon re-establishment of Internet connection.
CALGB requires investigators to route all expedited adverse event reports through the
Central Office for CALGB-coordinated studies.
Be sure to read this entire protocol section, as requirements are described in both the table and the
bullet points following the table in Section 16.1. Note that the table in Section 16.1 and the
additional instructions or exclusions in Section 16.2 may conflict. The additional instructions or
exclusion are protocol-specific and, in case of a conflict, the additional instructions or exclusions
in Section 16.2 supersede the table in Section 16.1.
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16.1
CALGB 40903 Commercial Agent Study: Expedited Reporting Requirements for Adverse
Events that Occur in a Non-IND trial within 30 Days of the Last Administration of a
Commercial Agent 1
FDA REPORTING REQUIREMENTS FOR SERIOUS ADVERSE EVENTS (21 CFR Part 312)
NOTE: Investigators MUST immediately report to the sponsor (NCI) ANY Serious Adverse Events, whether or not they are
considered related to the investigational agent(s)/intervention (21 CFR 312.64)
An adverse event is considered serious if it results in ANY of the following outcomes:
1)
2)
3)
4)
5)
6)
Death
A life-threatening adverse event
An adverse event that results in inpatient hospitalization or prolongation of existing hospitalization for ≥ 24 hours
A persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions
A congenital anomaly/birth defect.
Important Medical Events (IME) that may not result in death, be life threatening, or require hospitalization may be
considered serious when, based upon medical judgment, they may jeopardize the patient or subject and may require
medical or surgical intervention to prevent one of the outcomes listed in this definition. (FDA, 21 CFR 312.32; ICH
E2A and ICH E6).
ALL SERIOUS adverse events that meet the above criteria MUST be immediately reported via AdEERS within the
timeframes detailed in the table below.
Hospitalization
Resulting in
Hospitalization
≥ 24 hrs
Not resulting in
Hospitalization
≥ 24 hrs
Grade 1
Timeframes
Grade 2
Timeframes
Grade 3
Timeframes
Grade 4 & 5
Timeframes
10 Calendar Days
24-Hour 5 Calendar
Days
Not required
10 Calendar Days
Expedited AE reporting timelines are defined as:
o “24-Hour; 5 Calendar Days” - The AE must initially be reported via AdEERS within 24 hours of learning of
the AE, followed by a complete expedited report within 5 calendar days of the initial 24-hour report.
o
“10 Calendar Days” - A complete expedited report on the AE must be submitted within 10 calendar days
of learning of the AE.
1
Serious adverse events that occur more than 30 days after the last administration of commercial agent require
reporting as follows:
Expedited 24-hour notification followed by complete report within 5 calendar days for:
•
All Grade 4, and Grade 5 AEs that are at least possibly related to treatment
Expedited 10 calendar day reports for:
Grade 2 adverse events resulting in hospitalization or prolongation of hospitalization, and that are at least
possibly related to treatment.
•
Grade 3 adverse events that are at least possibly related to treatment
NOTE: Deaths clearly due to progressive disease should NOT be reported via AdEERS but rather should be
reported via routine reporting methods (e.g., CDUS and/or CTMS).
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16.2
Additional instructions or exclusions to AdEERS expedited reporting requirements for
Commercial Agents in a Non-IND trial:
•
All adverse events reported via AdEERS (i.e., serious adverse events) should also be
forwarded to your local IRB.
•
All new malignancies should be reported through AdEERS whether or not they are thought to
be related to either previous or current treatment. All new malignancies should be reported
including solid tumors (including non-melanoma skin malignancies), hematologic
malignancies, myelodysplastic syndrome (MDS)/acute myelogenous leukemia (AML), and in
situ tumors. In CTCAE version 4.0, the new malignancies (both second and secondary) may
be reported as one of the following (1) Leukemia secondary to oncology chemotherapy, (2)
Myelodysplastic syndrome, (3) Treatment-related secondary malignancy, or (4) Neoplasm
other, malignant (grade 3 or 4). Whenever possible, the AdEERs reports for new
malignancies should include, tumor pathology, history of prior tumors, prior
treatment/current treatment including duration, any associated risk factors or evidence
regarding how long the new malignancy may have been present, when and how the new
malignancy was detected, molecular characterization or cytogenetics of the original tumor (if
available) and of any new tumor, and new malignancy treatment and outcome, if available.
•
Treatment expected adverse events include those listed in Section 11.0 and in the letrozole
package insert.
•
The reporting of adverse events described in the table above is in addition to and does not
supplant the reporting of adverse events as part of the report of the results of the clinical trial,
e.g., cooperative group data reporting (see Section 6.0).
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86. Garcia-Casado Z, Guerro-Zotano A, Llombart-Cussac A, et al.: A polymorphism at the 3’UTR region of
the aromatase gener defines a subgroup of postmenopausal breast cancer patients with poor response to
neoadjuvant letrozole. BMC 10:36, 2010.
87. Ingle, JN et al.: Genome-wide case-control study of musculoskeletal adverse events and functional
genomics in women receiving aromatase inhibitors: Going beyond associations. Breast Cancer Res 12:4
S17
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18.0 MODEL CONSENT FORM:
PHASE II STUDY OF NEOADJUVANT LETROZOLE FOR POSTMENOPAUSAL WOMEN WITH ESTROGEN RECEPTOR POSITIVE
DUCTAL CARCINOMA IN SITU (DCIS)
This is a clinical trial, a type of research study. Your study doctor will explain the clinical trial to
you. Clinical trials include only people who choose to take part. Please take your time to make your
decision about taking part. You may discuss your decision with your friends and family. You can
also discuss it with your health care team. If you have any questions, you can ask your study doctor
for more explanation.
You are being asked to take part in this study because you have ductal carcinoma in situ (DCIS), an
early change in the breast that could become breast cancer in the future. Your DCIS cells are
sensitive to hormones, and therefore may be treatable with anti-hormonal medications.
Why is this study being done?
Standard treatment for DCIS includes surgery to remove the DCIS cells from the breast, or surgery
followed by radiation therapy. The purpose of this study is to test whether neoadjuvant
(neoadjuvant means given before surgery) treatment with the aromatase inhibitor (anti-hormonal
medication) letrozole has an effect, either good or bad, on you and on the DCIS.
Mammograms are the standard method of detecting and measuring DCIS. The researchers
conducting this study would also like to learn more about whether Magnetic Resonance Imaging
(MRI) may be better for evaluating and measuring DCIS, compared to mammograms.
The aromatase inhibitor letrozole is approved by the Food and Drug Administration (FDA) of the
United States, for the treatment of breast cancer that is positive for either the estrogen receptor or
the progesterone receptor in postmenopausal women. The use of letrozole in the treatment of DCIS
is considered to be investigational or research. The use of MRI, as used in this study to measure the
DCIS, is considered to be research.
How many people will take part in the study?
About 106 women will take part in this study.
What will happen if I take part in this research study?
Before you begin this study
You will need to have the following examinations, tests or procedures to find out if you can be in
the study. These exams, tests or procedures are part of regular DCIS care and may be done even if
you do not join the study. If you have had some of them recently, they may not need to be repeated.
This will be up to your study doctor.
• You will be asked to give your medical history and have a physical examination including a
breast examination
• Routine blood tests to check your blood counts, liver and kidney function, and menopausal
status
• A mammogram of both breasts to measure the DCIS
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• A MRI with IV contrast of both breasts to measure the DCIS. If the quality of the MRI is not
of acceptable quality, you will have another MRI with IV contrast of both breasts. If the
repeat MRI is not of acceptable quality, you will not start treatment and will no longer be in
the study.
During the study
If you are eligible and choose to take part, within 21 days after you have been registered to the
study and your study doctor has received confirmation that your MRI scan is of acceptable quality,
you will then begin treatment with the study drug letrozole one (1) tablet each day for three months.
You will return to the clinic for a study visit with your study doctor after three (3) months of
treatment. If your DCIS has grown you will be scheduled for surgery within 30 days.
If your DCIS has gotten smaller or has remained the same you will continue the letrozole treatment
for 3 more months, then return for a study clinic visit.
You will be give three (3) 40903 Letrozole Medication Calendars where you will record the date,
time and the number of letrozole tablets that you take each day. You will be asked to bring the
calendars with you when you come for the 1, 3, 6 and month clinic study visits and, if you have had
surgery, at the visit after surgery.
You will continue to take the letrozole tablets until the day before your surgery.
Testing and visits while receiving study treatment
During the time that you are receiving study treatment you will need the following routine test:
•
•
•
Clinic visit with your study doctor for a physical examination at month 1, 3 and 6 (including
a breast examination at month 3 and 6)
Pre-surgery clinic visit with your surgeon within 30 days before your surgery. It is possible
that this visit may be done at the same time as your month 3 or month 6 visit.
A digital mammogram of the breast(s) with DCIS before surgery (either at month 3 or
month 6)
During the time that you are receiving study treatment you will have the following imaging test
more often than the standard of care due to your participation in this study:
•
A MRI with IV (given through a vein) contrast of both breasts, to measure the DCIS, at
month 3 and if you have continued treatment after month 3 also at month 6
MRI is a commonly used medical imaging method used to see what’s going on inside the body
and measure different types of cancers. Its use in this study to measure the DCIS is considered
to be research.
Your MRI and mammogram images will be forwarded to the American College of Radiology
Imaging Network (ACRIN) for storage and quality assurance and to the University of
California San Francisco (UCSF) MRI Research Laboratory for review. These images will be
de-identified to protect your privacy. Researchers at UCSF will review your images and
communicate their findings with your study doctor.
Testing and visits after study treatment has been completed
After the study treatment has been completed, you will have a physical examination 6 months after
you have stopped the letrozole therapy or 6 months after you have had surgery to remove the DCIS
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from your breast. Another way to understand what will happen during the study is to read the chart
below. Start reading at the left and follow the arrows across to the right.
Treatment plan
R
E
G
I
S
T
E
R
If your DCIS has gotten
smaller or remained the
same, you will continue
the letrozole for 3 more
months.
Letrozole one
tablet each
day for 3
months.
3 month disease
evaluation by MRI of
both breasts.
If your DCIS has grown
you will have surgery to
remove the DCIS from
your breast. You will
continue to take the
letrozole until the day
before surgery.
6 month MRI of both
breasts followed by
surgery.
A mammogram of both
breasts will be done
before surgery (at
month 3 or month 6)
Surgery
Quality of Life Survey
We want to know your view of how your life has been affected by DCIS and its treatment. This
“Quality of life” study looks at how you are feeling physically and emotionally during your DCIS
treatment. It also looks at side effects of treatment and how you are able to carry out your day-today activities.
This information will help doctors better understand how patients feel during treatments and what
effects the medicine are having. In the future, this information may help patients and doctors as
they decide which medicines to use to treat DCIS.
You will be asked to complete the questionnaires: Before you begin the study treatment with
letrozole, on your 1 month, 3 month and 6 month clinic study visit (only if you continued to receive
the second 3 months of letrozole) and on the last visit, either 6 months after the surgery to remove
the DCIS or if you do not have surgery 6 months after you have stopped taking the letrozole. Only
one questionnaire will be completed at the final visit. It will take about 45 minutes to fill out all of
the questionnaires.
If any questions make you feel uncomfortable, you may skip those questions and not give an answer. You
may change your mind about completing the questionnaires at any time.
Just like in the treatment part of the study, we will do our best to make sure that your personal information
will be kept private.
I agree to take part in the quality of life study and complete the quality of life questionnaires.
1) ____Yes ____No Initials_______
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How long will I be in the study?
You will be asked to take the letrozole for at least 3 months and no more than 6 months. After you
have had surgery to remove the DCIS from your breast the study doctor will ask you to visit the
office for a follow-up examination within 30 days after the surgery. If you are participating in the
Quality of Life (QOL) Survey you will come for a final visit to complete the last survey 6 months
after surgery. So it is possible that you could be in the study for 3 months, 6 months or 12 months,
depending on when you have surgery to remove the DCIS from your breast and whether or not you
are participating in the QOL assessments.
Can I stop being in the study?
Yes. You can decide to stop at any time. Tell the study doctor if you are thinking about stopping or
decide to stop. He or she will tell you how to stop safely.
It is important to tell the study doctor if you are thinking about stopping so any risks from the
letrozole can be evaluated by your doctor. Another reason to tell your doctor that you are thinking
about stopping is to discuss what follow-up care and testing could be most helpful for you.
The study doctor may stop you from taking part in this study at any time if he/she believes it is in
your best interest; if you do not follow the study rules; or if the study is stopped.
What side effects or risks can I expect from being in the study?
You may have side effects while on the study. Everyone taking part in the study will be watched
carefully for any side effects. However, doctors don’t know all the side effects that may happen.
Side effects may be mild or very serious. Your health care team may give you medicines to help
lessen side effects. Many side effects go away soon after you stop taking the drug. In some cases,
side effects can be serious, long lasting, or may never go away.
You should talk to your study doctor about any side effects that you have while taking part in the
study.
LETROZOLE
Likely (have been seen in 20% of patients)
•
•
•
Hot flashes
Increased sweating
Fatigue
Less Likely (have been seen in 20% or less patients)
•
•
•
•
•
•
•
•
•
•
Joint pain
Muscle pain
bone pain
weakness
arthritis
backache
dizziness
headache
sleepiness
decreased appetite
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•
•
•
•
•
•
•
•
nausea
swelling in the legs
constipation
weight gain
shortness of breath
cough
Loss of bone thickness (which can lead to broken bones)
Possible increase in cholesterol level as seen on a blood test
Reproductive risks: All women must be postmenopausal in order to participate in this study.
Postmenopausal women by definition should not be able to conceive or bear a child. However, in
the unlikely event that you are able to become pregnant while taking part in this study you should
be aware that the drugs used in this study can affect an unborn baby. Therefore, you should not
become pregnant or breastfeed a baby while on this study.
SURGERY
You will sign a separate consent form before surgery. This will be a standard surgical consent form
from the institution where the surgery takes place. The possible risks and side effects of the surgery
that you will have will be explained to you at that time.
For more information about risks and side effects, ask your study doctor.
Are there benefits to taking part in the study?
Taking part in this study may or may not make your health better. While doctors hope letrozole will
be more useful against DCIS compared to the usual treatment, there is no proof of this yet. We do
know that the information from this study will help doctors learn more about letrozole and MRI in
the treatment of DCIS. This information could help future DCIS patients.
What other choices do I have if I do not take part in this study?
Your other choices may include:
•
•
•
Getting treatment or care for your DCIS without being in a study
Taking part in another study
Getting no treatment
Talk to your doctor about your choices before you decide if you will take part in this study.
Will my medical information be kept private?
We will do our best to make sure that the personal information in your medical record will be kept
private. However, we cannot guarantee total privacy. Your personal information may be given out
if required by law. If information from this study is published or presented at scientific meetings,
your name and other personal information will not be used.
Organizations that may look at and/or copy your medical records for research, quality assurance,
and data analysis include:
•
•
Cancer and Leukemia Group B (CALGB)
Cancer Trials Support Unit (CTSU), a service sponsored by the National Cancer Institute
(NCI) to provide greater access to cancer trials
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•
The National Cancer Institute (NCI) and other government agencies, like the Food and Drug
Administration (FDA), involved in keeping research safe for people
Organizations that may review and store your de-identified MRI and mammogram images for
research and quality assurance include:
•
•
University of California San Francisco (UCSF) MRI Research Laboratory
American College of Radiology Imaging Network (ACRIN)
The CALGB has received a Certificate of Confidentiality from the federal government, which will
help us to protect your privacy. The Certificate protects against the involuntary release of
information about you collected during the course of the study. The researchers involved in this
project may not be forced to identify you in any legal proceedings (criminal, civil, administrative,
or legislative) at the federal, state, or local level. However, some information may be required by
the Federal Food, Drug, and Cosmetic Act, the U.S. Department of Health and Human Services, or
for purposes of program review or audit. Also, you may choose to voluntarily disclose the protected
information under certain circumstances. For example, if you or your guardian requests the release
of information about you in writing (through, for example, a written request to release medical
records to an insurance company), the Certificate does not protect against that voluntary disclosure.
What are the costs of taking part in this study?
You and/or your health plan/ insurance company will need to pay for some or all of the costs of
treating your cancer in this study. Some health plans will not pay these costs for people taking part
in studies. Check with your health plan or insurance company to find out what they will pay for.
Taking part in this study may or may not cost your insurance company more than the cost of getting
regular cancer treatment.
The letrozole use in this study will be provided to your doctor for you, free of charge by the
Division of Cancer Prevention of the National Cancer Institute (NCI).
If during the study the letrozole become approved for use in treating DCIS you and /or your health
plan may have to pay for the letrozole needed for you to complete this study.
Even though it probably won’t happen, it is possible that the manufacturer may not continue to
provide the letrozole to the Division of Cancer Prevention of the National Cancer Institute (NCI)
for some reason. If this would occur, other possible options are:
•
•
You might be able to get the letrozole from the manufacturer or your pharmacy but you or
your insurance company may have to pay for it.
If there is no letrozole available at all, no one will be able to get more and the study would
close.
If a problem with getting letrozole occurs, your study doctor will talk to you about these options.
There will be no charge to you for the cost of the month 3 or month 6 MRI scans.
You will not be paid for taking part in this study.
For more information on clinical trials and insurance coverage, you can visit the National Cancer
Institute’s Web site at http://cancer.gov/clinicaltrials/understanding/insurance-coverage . You can
print a copy of the “Clinical Trials and Insurance Coverage” information from this Web site.
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Another way to get the information is to call 1-800-4-CANCER (1-800-422-6237) and ask them to
send you a free copy.
What happens if I am injured because I took part in this study?
It is important that you tell your study doctor, __________________ [investigator’s name(s)], if
you feel that you have been injured because of taking part in this study. You can tell the doctor in
person or call him/her at __________________ [telephone number].
You will get medical treatment if you are injured as a result of taking part in this study. You and/or
your health plan will be charged for this treatment. The study will not pay for medical treatment.
What are my rights if I take part in this study?
Taking part in this study is your choice. You may choose either to take part or not to take part in the
study. If you decide to take part in this study, you may leave the study at any time. No matter what
decision you make, there will be no penalty to you and you will not lose any of your regular
benefits. Leaving the study will not affect your medical care. You can still get your medical care
from our institution.
We will tell you about new information or changes in the study that may affect your health or your
willingness to continue in the study.
In the case of injury resulting from this study, you do not lose any of your legal rights to seek
payment by signing this form.
Who can answer my questions about the study?
You can talk to your study doctor about any questions or concerns you have about this study.
Contact your study doctor __________________ [name(s)] at __________________ [telephone
number].
For questions about your rights while taking part in this study, call the
________________________ [name of center] Institutional Review Board (a group of people
who review the research to protect your rights) at __________________ (telephone number).
[Note to Local Investigator: Contact information for patient representatives or other individuals in
a local institution who are not on the IRB or research team but take calls regarding clinical trial
questions can be listed here.]
*You may also call the Operations Office of the NCI Central Institutional Review Board
(CIRB) at 888-657-3711 (from the continental US only). [*Only applies to sites using the
CIRB.]
Related Studies
Please note: This section of the informed consent form is about additional research studies
that are being done with people who are taking part in the main study. You may take part in
these additional studies if you want to. You can still be a part of the main study even if you
say ‘no’ to taking part in any of these additional studies.
You can say “yes” or “no” to each of the following studies. Please mark your choice for each
study.
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Please read this section of the informed consent on related research studies and ask about anything
that is not clear to you. This is to inform you of the possible risks, benefits and limits of giving your
samples for research.
You are being asked to give some of your samples (called specimens) and related information to be
used for research. This may help researchers learn more about how to prevent, find and treat cancer
and other diseases.
The choice to have your samples used for the research described in this consent and stored for
future research is up to you. No matter what you decide, it will not affect your medical care and it
will not affect whether you take part in other studies. You will not be paid for taking part in these
studies.
What are samples and where are they stored?
A sample is any material taken from your body such as tissue, blood, urine and other fluids. If you
agree, your samples will be stored for research in a Cooperative Group bank supported by the
National Cancer Institute. A Cooperative Group bank contains samples and information. Your
samples are kept along with those from other people in this bank. Researchers then ask for samples
from the bank to study them.
What information will be collected?
Your samples will be sent to the CALGB Bank. Any personal information sent with the samples to
the bank is not given to researchers. The personal information is used only by the bank. Your
privacy will be protected to the fullest extent possible. This will be discussed later in the section
“How will information related to my samples be protected?”
Other information that might be stored for future research by the Cancer and Leukemia Group B
includes:
•
•
•
•
•
•
Dates of medical procedures
Any diagnosis and stage of your disease (if you have cancer)
Your age and race
Medical and family history
Treatments you had
How you responded to treatments
What will happen to my samples if I agree to give them for research?
Your samples will be stored in the CALGB Bank. The samples will be kept until they are used up
or destroyed. The samples are given a code to protect your privacy before they are used. Any
related information given to researchers will also be coded. Researchers will receive the code
instead of any information that might directly identify you.
You or your doctor will not be given reports or other information about the research that uses your
samples. This information will not be put into your health record. Results may be used for future
research.
You will not be named or identified by other personal information if any results are published.
Most publications contain results from many patients.
Your samples and related information will be used only for research and will not be sold. It is
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possible that research may help to create new products or treatments. If this should happen, you
will not be paid.
Because the information gained from the research studies performed on your samples can be very
useful to the research community, several groups including the National Institute of Health (NIH)
have requested that some of these data be placed in a central database. Therefore, some of the
coded research information may be sent to a central database. The goal is to speed up the process of
discovery of new treatments, prevention and diagnosis of disease. The information will continue to
be made available for approved research. Your name or contact information will not be put in the
database.
What kind of research will be done with my samples?
Many types of research use normal or diseased (cancerous) samples. Researchers can study
proteins, RNA and DNA (genes). The study of genes (DNA) is often called genetic research.
Your samples may be looked at:
• To see if a trait is passed down in families from one generation to the next (inherited). This
type of research may help to explain why some cancers run in families or why some people
have side effects of treatment while others do not. This is often studied through blood cells
and DNA (genes).
• To learn about changes in the body that happen after you were born (non-inherited). For
example, being in the sun too much can cause changes in cells that lead to skin cancer.
As part of this study researchers want to learn more about the possibility of predicting whether the
study treatment will work by studying your DCIS tissue samples, and would also like to investigate
whether substances in your blood, called tumor markers, are related to the way that your body
responds (or doesn’t respond) to the study treatment.
Qualified researchers can submit a request to use the samples stored in the Cooperative Group
bank. A science committee at the Cooperative Group, and/or the National Cancer Institute, will
review each request. There will also be an ethics review to ensure that the study is necessary and
proper. Researchers will not be given your name or any other information that could identify you.
Neither you nor your doctor will be notified when research will be conducted or given reports or
other information about any research that is done using your samples.
Will it help me if I give my sample for research?
Using your samples for research will probably not help you. We do hope the research results will
help people in the future. The best way to prevent, find or treat cancer and other diseases is by
studying human samples and data.
What are the risks of giving my samples for research?
•
There can be mild pain, or some bleeding or bruising when blood is drawn. Rarely, an
infection can happen where the needle was placed. Feeling dizzy or fainting can also
happen, but may only last a few minutes after blood is drawn.
•
There is a risk that your information could be misused. The chance of this happening is very
small. We have many protections in place to lower this risk. See the next section, “How will
the information related to your samples be protected?” Your privacy will be protected to the
fullest extent possible.
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•
There can be a risk in knowing genetic information. New health information about inherited
traits that might affect you or your blood relatives could be found during a research study.
Even though your genes are unique, you share some of the same genes with your blood
relatives. Very rarely health or genetic information could be misused by employers,
insurance companies, and others. For example, life insurance companies may charge a
higher rate based on this information.
Some states have laws to protect against genetic discrimination [list appropriate state information
if your state has such laws]. A new federal law called the Genetic Information Non-Discrimination
Act, or GINA is in effect. This law helps to lower the risk of health insurance or employment
discrimination. The law does not include other types of misuse by life insurance or long term care
insurance. To learn more about the GINA Law, please check the Internet or ask the study staff.
Although we are not able to know all of the risks from taking part in research on inherited traits, we
believe that the risks to you and your family are very low, because research results will not be
returned to you or your doctor.
How will information related to my samples be protected?
We have many ways to protect the information related to your samples:
•
Your samples and information receive a unique code. Researchers only receive coded
samples and information, and will not be able to link the code to you. Only approved people
in the Cancer and Leukemia Group B can match you to the code on your samples and related
information.
•
Strict security safeguards are in place to reduce the chance of misuse or unplanned release of
information. Steps we take include, but are not limited to, restricted access to buildings,
rooms and freezers housing patient samples, numeric coding of both patient data and
samples, and password protected access to databases housing patient data.
•
Before samples are given to researchers, studies are reviewed for the quality of the science
and for patient protection. Records from research studies can be reviewed by the Cooperative
Group, by the sponsor, and by government agencies. This is to make sure the research
follows the rules of the Cooperative Group and state or federal laws.
•
In most cases, research results will not be returned to you or your doctor. If research results
are required to make a decision regarding your treatment on this study then research results
may be shared with you or your doctor. If research results are published, your name and
other personal information will not be given.
•
The Cancer & Leukemia Group B (CALGB) also has a Certificate of Confidentiality from
the U.S. Department of Health and Human Services. The Certificate protects against the
forced release of personal information from the Cooperative Group bank or database.
What this means is that CALGB cannot be forced to disclose your identity to any third party. It is
possible that for some legal proceedings, the Certificate of Confidentiality could be over-ridden by
a court of law.
Making your choice
The choice to take part is up to you. You may choose not to let us use and store your samples. If
you decide not to let us store and use your samples, you will still receive the same medical care.
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You may also take part in other research studies.
To learn more, ask the study staff for the booklet called “Giving Samples for Research" or visit
http://www.cancer.gov. You may want to read the section “What types of research use samples?”
[If approved by IRB also include “Patient Information Brochure” in this statement.]
If you decide that your samples can be kept, you may change your mind at any time. Contact the
study staff at your hospital and let them know that you do not want your samples used for research
[Insert contact number]. Then, any sample that remains in the bank will no longer be used.
Samples or related information that have already been given to or used by researchers cannot be
returned or destroyed.
Thank you for considering whether to allow your samples to be used for the research described
above and/or banked for future research.
The researchers want to learn more about the possibility of predicting whether the study treatment
will work by studying your DCIS tissue samples.
If you agree a sample of your DCIS tissue, which was taken at the time of diagnosis for routine
testing, and a sample of DCIS tissue that will be taken at the time of surgery will be sent to a
CALGB research laboratory for these studies.
2) My tissue specimens may be used for the research described above.
____Yes ____No Initials_______
Genetic Studies on Blood
The researchers would like to investigate whether substances in your blood, called tumor markers,
are related to the way that your body responds (or doesn’t respond) to the study treatment. These
tumor markers may be inherited through your family, and could be passed to your children. These
are also called genetic studies. Blood taken before study treatment will be used to learn how certain
genes influence the effectiveness and side effects of your treatment. In order to study the genes the
DNA must be removed from your blood sample. DNA is the substance that makes up your genes.
Genes are the units of inheritance that are passed down from generation to generation. They are
responsible for eye color, hair color, blood type and hundreds of other traits.
New scientific tools will now allow researchers to look at your whole DNA, not just one part or one
gene. This kind of research can provide information to researchers about the development of cancer
and response to treatment. It can also provide information about a variety of other conditions and
diseases, including heart disease, diabetes and Alzheimer’s disease. Because the information gained
in these genetic studies can be very useful to the research community, the National Institutes of
Health (NIH) has requested that these data be placed in a central database housed at the NIH. The
goal is to speed up the process for discovery of new treatment, prevention and diagnosis of disease.
Researchers must get approval from the NIH before they can access the research results and healthrelated information from your specimen. All information will be coded with a unique number.
Researchers will not have access to your identity; they will only see coded information.
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Blood for these studies will be taken only once before the first dose of study treatment. About 4
teaspoons of blood will be taken.
3) My specimen may be used for the genetic research described above.
____Yes ____No Initials_______
Storage of tissue and blood
The researchers would also like to store any portion of the tissue and blood that is not used up by
the related study described above. These samples may be stored indefinitely. You can still take part
in the treatment study, and the research study described above without giving your consent for your
samples to be stored.
It is not possible for you or the CALGB to know what studies of breast disease may be appropriate
in the future. We ask that you give permission in advance for other studies to be performed using
the tissue without being re-contacted to give permission for each test.
Please read each sentence below and think about your choice. After reading each sentence, check
"Yes" or "No". If you have any questions, please talk to your study doctor or nurse, or call our
research review board at IRB's phone number. No matter what you decide to do, it will not affect
your care.
4) My specimens may be kept for future use in research to learn about, prevent, or treat breast
disease.
____Yes ____No Initials_______
5) My specimens may be kept for use in research to learn about, prevent or treat other health
problems (for example: diabetes, Alzheimer's disease, or heart disease).
____Yes ____No Initials_______
6) Someone may contact me in the future to ask me to take part in more research.
____Yes ____No Initials_______
Where can I get more information?
You may call the National Cancer Institute's Cancer Information Service at:
1-800-4-CANCER (1-800-422-6237)
You may also visit the NCI Web site at http://cancer.gov/
•
For NCI’s clinical trials information, go to: http://cancer.gov/clinicaltrials/
•
For NCI’s general information about cancer, go to http://cancer.gov/cancerinfo/
A description of this clinical trial will be available on http://www.ClinicalTrials.gov. This Web site
will not include information that can identify you. At most, the Web site will include a summary of
study results. You can search this Web site at any time.
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You will get a copy of this form. If you want more information about this study, ask your
study doctor.
Signature
I have been given a copy of all _____ [insert total of number of pages] pages of this form. I
have read it or it has been read to me. I understand the information and have had my
questions answered. I agree to take part in this study.
Participant ________________________________
Date _____________________________________
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SITE IMAGING MANUAL
APPENDIX I
CALGB 40903 SITE IMAGING MANUAL
CALGB 40903
Phase II Study of Neoadjuvant Letrozole for Postmenopausal
Estrogen Receptor Positive Ductal Carcinoma in SITU (DCIS)
Version: 3.0
Date: August 27, 2013
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TABLE OF CONTENTS
1.0
Overview of Imaging Requirements ……………………………………………………………
2
2.0
Imaging Qualification …………………………………………………………………………… 2
2.1 Protocol-Specific Application
2.2 MR Qualification Form – Imaging Equipment
2.3 MRI Test Scans
2.4 MRI Qualification Review and Notification
2.5 Changes to Qualified Scanner
3.0
Bilateral Digital Breast Mammogram …………………………………………………………… 3
3.1 Imagine Schedule
3.2 Imaging Procedure
4.0
Breast MRI ……………………………………………………………………………………… 4
4.1 Imaging Schedule
4.2 Standardized Imaging Procedure
4.1.1
Exam Preparations
4.1.2
Contrast Agent Administration
4.1.3
Image Acquisition Protocol
5.0
Image Submission ………………………………………………………………………………
5.1 TRIADTM
5.1.1
Current TRIAD Users
5.1.2
TRIAD Installation
5.1.3
Submission of Study Imaging
5.1.4
Submission of Test Scans
5.2 CD/DVD
5.3 Image Transmittal Worksheet
6
6.0
Quality Control …………………………………………………………………………………
6
Appendices:
I. Protocol-Specific Application
II. MR Qualification Form
III. TRIAD Pre-Study Worksheet
IV. Image Transmittal Worksheet (ITW)
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1.0
OVERVIEW OF IMAGING REQUIREMENTS
MRI Qualification
TRIADTM
Installation
Image Acquisition
Image Submission
2.0
Submit prior to study enrollment:
• Protocol-Specific Application
• MR Qualification Form and 2 test scans for each scanner
Should be installed prior to study enrollment for secure, electronic submission
of imaging to ACRIN.
Mammogram, per routine acquisition protocol
• Mammo-1: Baseline/Pre-treatment
• Mammo-2: Pre-surgical
MRI, per study-standardized acquisition protocol
• MRI-1: Baseline/Pre-treatment
• MRI-2: 3 Month Follow-up
• MRI-3: 6 Month Follow-up
Submit all mammograms and MRI imaging to ACRIN via TRIADTM.
IMAGING QUALIFICATION
The use of standardized imaging guidelines is an essential component of clinical trials in which imaging
plays a central role in the research endpoints. This is of particular importance in multicenter trials where
equipment, personnel, and imaging acquisition protocols can vary significantly across sites. Thus, the use
of standardized imaging guidelines helps control the inter- and intra-variability inherent in multicenter
imaging trials. Participation in CALGB 40903 requires sites to adhere to a standardized MR imaging
protocol. Mammograms will be performed per your institutions standard of care and will not require trial-­‐specific qualification. Qualification of the MR imaging is required prior to enrollment of study participants. The qualification
process will be managed by the ACRIN Imaging Core Laboratory on behalf of CALGB. The purpose of
the qualification process is to help ensure that study imaging is of high quality and performed per the
standardized MRI acquisition protocol. Suboptimal image quality and/or imaging not performed per the
trial-standardized protocol can result in exclusion of the imaging exam(s) and/or the entire case from
analysis. Therefore, routine QC and adherence to the image acquisition protocol are of great importance.
2.1
Protocol-Specific Application (PSA)
The first step in the qualification process is to complete a Protocol-Specific Application (PSA), provided
with this Manual. The application captures information regarding site personnel and general imaging
capabilities.
2.2
MR Qualification Form (MRQF) – Imaging Equipment
Sites are required to identify at least one 1.5T or 3T scanner for imaging of CALGB 40903 study patients.
A MR Qualification Form (provided with this manual) is required for each scanner to be used during the
study. In choosing which scanners to qualify, please note that it is preferred (best practice) that all study
imaging for a given patient be performed on the same scanner.
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When this is not possible, all imaging for a given patient must be performed using the same magnet
configuration (same scanner manufacturer, model, field strength and breast coil).
Required imaging equipment:
• at least one 1.5T or 3.0T whole body MRI scanner
• dedicated breast radiofrequency coil
2.3
MRI Test Scans
Two clinical test scans, acquired per the standardized protocol described in Section 4.0, are to be
submitted for each scanner. All imaging must be submitted in DICOM format. Qualification imaging can
be submitted electronically via TRIADTM or saved to CD/DVD and shipped to ACRIN, along with a copy
of the submitted MR Qualification Form. See Section 5.0 for image submission instructions.
2.4
MRI Qualification Review and Notification
The test scans will be evaluated for general image quality and compliance with the standardized MR
acquisition protocol. ACRIN will notify the site via e-mail regarding the results of the qualification
review. If the test MRI scans are approved, ACRIN will provide notification of qualification via email to
the site, the CALGB coordinating center and CTSU. If the scans are not approved, ACRIN will notify the
site by email and provide recommended corrections. Approval of the test scans is mandatory prior to a site
registering a participant onto the trial.
2.5
Changes to Qualified Scanner(s)
Changes in the scanner used to image CALGB 40903 study patients should be reported to the ACRIN
Imaging Core Lab immediately via email. The addition of a new scanner for study imaging will require
full qualification. Software and/or hardware upgrades to already qualified scanners will be reviewed by the
ACRIN Imaging Core Lab to determine whether additional QC testing or test scans will be required. In
either case, use of a new scanner or software/hardware upgrades, sites should consult ACRIN prior to
scanning study patients.
3.0
BILATERAL DIGITAL BREAST MAMMOGRAM
3.1
Imaging Schedule
Mammo-1
Baseline (within 60 days prior to study)
Mammo-2
Prior to Surgery
Submit to ACRIN within 1-2 business
days of image acquisition.
3.2
Imaging Procedure
The two standard views (cranio-caudal and medial-lateral oblique) for each breast are to be performed per
your institutions standard of care. For some women with larger breasts, additional images may be necessary
to image the entire breast, same as in standard clinical practice.
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4.0
BREAST MRI
4.1
Imaging Schedule
MRI 1
Baseline (pre-treatment)
MRI 2
3-Month (week 13 of treatment)
MRI 3
6-Month (week 25 of treatment, pre-surgery)
Submit to ACRIN within 1-2 business
days of image acquisition.
4.2
Standardized Imaging Procedure
All breast MRI scans performed should be performed per the standardized acquisition protocol provided
below. The protocol includes a T2-weighted sequence, a diffusion-weighted imaging (DWI) sequence, and a
dynamic contrast-enhanced (DCE) sequence. Please review the patient preparations and acquisition
parameters carefully as this imaging protocol may or may not align with your institution’s routine/standard
of care Breast MRI protocol.
When setting up this acquisition protocol for the first time, the protocol should be saved to the scanner’s
protocol menu under an easily recognizable name, such as CALGB 40903; this will help avoid future
confusion about which imaging protocol to select. Please note that some facilities limit access to the protocol
menu so this may require special user permissions.
4.1.1
!
Exam Preparations
Place an intravenous catheter in the arm or hand prior to the start of imaging for contrast
injection. Sites should adhere to routine clinical guidelines for the safe administration and
monitoring of contrast media.
! Patients should be scanned prone and centered to the table.
! Please use universal MRI safety precautions.
NOTE: Patients should be scanned in a consistent manner throughout the duration of their
enrollment – same imaging protocol, same contrast agent brand, on the same scanner or the same
scanner configuration (manufacturer, model, field strength and breast coil model).
4.1.2 Contrast Agent Administration
For the DCE sequence, gadolinium contrast agent should be administered intravenously at a dose of
0.1 mmol/kg body weight and rate of 2 ml/second, followed by a 20 ml saline flush. Contrast
injection should begin simultaneously with the start of data acquisition.
4.1.3 Image Acquisition Protocol
Acquisition parameters for each of the pulse sequences are provided in Table 1. Care should be
taken to select the smallest FOV and slice coverage that completely encompasses both breasts and
axilla – this should be the same on all exams of the same patient.
*
! Bilateral pre-contrast T2-weighted fast spin echo (FSE) or STIR
! Pre-contrast diffusion-weighted spin echo, echo planar imaging (DW SE-EPI)
! Pre-contrast 3D T1-weighted gradient echo (GE) *
! DCE: Post-contrast dynamic multi-phase 3D T1-weighted GE ( > 8 minutes) *
Pre-contrast T1 images should be checked prior to contrast injection to confirm acceptable fatsuppression. Pre- and post-contrast T1 sequences MUST have identical image parameters to allow
subtraction/maps; transmit and receive gain settings should remain constant.
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Table 1: CALGB 40903 Pulse Sequence-specific Acquisition Parameters
Parameter
T2-weighted
DWI
Sequence type
FSE or STIR
DW SE-EPI
2D or 3D sequence
2D
2D
Slice orientation
Axial or sagittal
Axial
Laterality
Bilateral
Bilateral
Frequency direction
A/P
R/L
Phase direction
R/L (axial)
A/P
S/I (sagittal)
FOV - frequency
260-360 mm (axial) 180260-360 mm
220 mm (sagittal)
FOV - phase
260-360 mm (axial) 180260-360 mm
220 mm (sagittal)
Matrix – frequency
256-512
192
(acquired)
Matrix – phase (acquired)
192
≥ 256
In-plane resolution
≤ 1.4 mm
≤ 1.9 mm
Fat-suppression
Active fat-sat
Active fat-sat
recommended
TR
2000-10000 ms
6,000 ms
TE
70-140 ms
Minimum TE
Echo Train Length
TI (STIR sequence)
Flip Angle
B values
Slice thickness (acquired)
Number of slices
Slice Gap
Parallel imaging factor
No. of excitations or
averages
k-space ordering
Sequence
acquisition time
Contrast
(2 ml/sec injection rate)
Total post-contrast imaging
duration
260-360 mm
260-360 mm
384-512
≤ 16
150 ms (1.5T)
300 ms (3.0T)
90 degrees
N/A
≤ 4 mm
Variable; complete
bilateral coverage
≤ 1.0 mm
≤2
≤2
N/A
N/A
≥ 256
≤ 1.4 mm
Active fat-sat
recommended
4-10 ms
1.3 or 4.2 ms fat/water inphase
N/A
N/A
90 degrees
0, 800 s/mm2
5 mm
Variable; complete
bilateral coverage
No gap
2
5
10-20 degrees
N/A
≤ 2.5 mm
≥ 60; complete bilateral
coverage
No gap
≤2
≤2
N/A
N/A
≤ 7 minutes
≤ 4 minutes
N/A
N/A
N/A
N/A
-k to +k
standard, non-centric
80 sec ≤ scan time ≤ 100
sec
Pre- and Post-contrast,
identical parameters
≥ 8 minutes following
injection
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T1-weighted
GE
3D
Axial
Bilateral
A/P
R/L
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5.0
IMAGE SUBMISSION
Participating sites are to submit all mammography and MR imaging to the ACRIN Imaging Core
Laboratory. Images should be submitted as soon as possible (within 1-­‐2 business days) after acquisition. It
is important to note that all imaging must be provided in DICOM format. Please contact ACRIN with any
questions regarding the image submission process.
5.1
Submission of Study Imaging - TRIADTM
Due to the need for quick receipt and turnaround of the MRI exams, TRIADTM is the preferred mode of
image submission. Though setting up TRIAD requires some upfront effort, sites typically find the benefits
of TRIAD outweigh the initial set-up effort. Benefits of TRIAD include:
•
•
•
•
•
Elimination of costs associated with burning and express shipping CD/DVDs
Reduced effort associated with burning and express shipping CD/DVDs
Reduced risk of protocol deviations associated with delayed image submission
Reduced risk of accidental release of protected health information (PHI)
Reduced risk of protocol deviations associated with ‘over-anonymization’ of image set
TRIAD is a standards-based system developed by the American College of Radiology (ACR) to provide a
secure web-based method of transferring and managing image data. The TRIAD software will be provided
free of charge and can be installed on one or more computers of choice within the institutional network. The
TRIAD application can then be configured as a DICOM destination on the scanner(s) and/or PACS for
direct network transfer of the study imaging. The TRIAD software anonymizes, encrypts, and performs a
lossless compression of the images before they are transferred to the ACRIN image archive in Philadelphia.
5.1.1 Current TRIAD Users
TRIAD user permissions are trial-specific. To submit images to the CALGB 40903 image archive,
current users of TRIAD need to contact TRIAD support to have the CALGB 40903 study (TRIAD
study #4510) added to their permissions profile.
5.1.2 TRIAD Installation
Sites without TRIAD will need to communicate with their IT department for assistance with the
initial steps outlined in the TRIAD Pre-Study Worksheet (provided with this manual) prior to
scheduling TRIAD installation. The TRIAD Installation Guide and TRIAD Users Guide can be
found at https://triad.acr.org/Learning.htm. To contact TRIAD Support call 215-940-8820 or email
[email protected].
5.1.3 De-identification
As part of the image submission process, sites will identify the patient by entering the patient’s
CALGB research ID (subject ID or case number). TRIAD will then remove or replace specific
protected health information (PHI), such as patient name and medical record number, and re-identify
the image set with the research ID provided by the site. Sites are asked not to de-identify imaging
exams prior to uploading the image sets to TRIAD as many anonymization applications are not
designed specifically for research purposes and, in addition to removing PHI, also remove key
scanner and technical data required by researchers.
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Additional information regarding TRIAD, including default and customized anonymization
profiles, can be found in the TRIAD Users Guide (https://triad.acr.org/Learning.htm). Please note
that image sets with missing data will require resolution and resubmission of the image set.
5.2 Submission of Study Imaging – CD/DVD TRIAD submission of study imaging is strongly recommended, however, in some cases study imaging may be sent via CD/DVD but should first be approved by the ACRIN Imaging Core Laboratory; this will be determined on a site-­‐by-­‐site basis. Each CD/DVD should contain only one exam and the jacket should be labeled with the study ID (CALGB 40903), NCI site ID, CALGB patient ID, and exam time point (e.g. MRI-­‐1 or Mammogram-­‐2). Do not affix adhesive labels directly to the CD/DVD. Include a printed copy of the submitted ITW and ship to: American College of Radiology 1818 Market St, Suite 1600 Philadelphia, PA 10903 Attn: ACRIN Core Lab, CALGB 40903 5.3 Submission of Test Scans Since test scans will be acquired using volunteers or clinical patients, all PHI must be removed from the
image set (being careful not to remove site identifiers or technical data) prior to saving the images to CD/DVD and shipping to ACRIN. Each CD/DVD should contain only one exam; the jacket should be labeled as Test Scans and include the study ID (CALGB 40903) and NCI site ID. Do not affix adhesive labels directly to the CD/DVD. Ship to ACRIN at the address provided above in Section 5.2. 5.3 Image Transmittal Worksheet (ITW) A CALGB 40903 ITW (provided with this manual) must be submitted for each exam at the time of image submission. The ITW should be completed in full and submitted via email to [email protected] or uploaded to TRIAD with the imaging exam. 6.0
QUALITY CONTROL (QC)
Sites are expected to acquire the MRI exams per the standardized MR acquisition protocol and review all
imaging for image quality and protocol compliance.
Upon receipt of the images at ACRIN, an initial QC review will be conducted by a qualified ACRIN
Imaging Technologist. The ACRIN technologist will check for missing images/sequences, appropriate
image anonymization, complete anatomical coverage of the breast parenchyma, and absence of image
artifact. Missing or discrepant image data will be communicated to the site and the CALGB coordinating
center.
All MRI exams will undergo an additional review, including compliance with the standardized acquisition
protocol, as part of the central review conducted by the UCSF Breast MRI Research Laboratory.
Information regarding the central review process is provided in Section 7.3 of the clinical trial protocol.
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