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PDL Drug Class Review First Health Services Proprietary and Confidential Unauthorized Reproduction and/or Distribution is Strictly Prohibited Page 1 Drug Class 5-HT3 Receptor Antagonists (Anti- Emetics) Drugs Reviewed Dolasetron Granisetron Ondansetron Anzemet® Kytril® Zofran®, Zofran® ODT* Executive Summary Overview and Pharmacology These agents exert their activities by the same mechanism, antagonism of the type serotonin (5-hydroxytryptamine [5-HT3]) receptor. They are all highly selective with high affinities for this receptor. The American Society of Clinical Oncology (ASCO) has developed evidence-based recommendations on the use of the 5-HT3 receptor antagonists. These clinical practice guidelines conclude that at equivalent doses for acute, delayed emesis (vomiting occurring > 24 hours after chemotherapy) and treatment of chemotherapy-induced emesis, the 5-HT3 receptor antagonists have equivalent safety and efficacy and may be used interchangeably. For multiple consecutive days of chemotherapy, the selected antiemetic should be administered for each day of the chemotherapy. For radiation-induced emesis, a 5-HT3 receptor antagonist should be given with or without a corticosteroid before each fraction and for at least 24 hours after.7 The American Society of Health System Pharmacists (ASHP) also published a guideline for the prevention of PONV. It concluded that prophylactic antiemetic therapy for PONV is effective, but combinations of agents may be necessary for high-risk patients. If PONV occurs in the immediate postoperative period, an antiemetic from a class different from that of the prophylactic agents should be administered for the treatment of vomiting. For every 100 patients who vomit postoperatively, 20-30 will stop vomiting who would not have done so had they received placebo instead of a 5-HT3 receptor antagonist. Study results that have been reported without clearly differentiating between efficacy for nausea and efficacy for vomiting may give a false impression of the overall efficacy of 5-HT3 receptor antagonists. The guideline also concluded that there was no difference in efficacy among ondansetron 1, 4, and 8 mg; dolasetron mesylate 12.5, 25, 50, and 100 mg; and granisetron 0.1, 1, and 3 mg.8 The ASCO guidelines recommend that prevention of post-operative nausea and vomiting (PONV) should be reserved for use in patients with high-risk factors such as obesity, preoperative anxiety, history of previous PONV or motion sickness, delayed gastric emptying, abdominal, gynecological or otolaryngologic surgical procedures, or long duration of surgery. The choice of agent should be based on patient-specific factors and cost.7 The American Society of Health System Pharmacists (ASHP) concludes the optimal approach to controlling delayed emesis remains controversial. Control of acute nausea and vomiting is essential. It is one of the most important predictors for the development of delayed nausea and vomiting and will have a major impact in its prevention. Control of anticipatory nausea and vomiting is through effective pharmacologic prophylaxis for acute and delayed emesis. There is no role for the 5-HT3 receptor antagonists in anticipatory nausea and vomiting. Round-the-clock dosing of 5-HT3 receptor antagonists may be used in the management of breakthrough nausea and vomiting. The optimal management of breakthrough nausea and vomiting has not been confirmed. Therefore, the choice of agent should be based on adverse effects and cost. 8 Adverse Effects All three 5-HT3 receptor antagonists share the same low side-effect pattern, with mild headache, transient asymptomatic transaminase elevations, malaise, fatigue, constipation, and dizziness being among the most commonly reported adverse events. Special Populations The safety and efficacy of these products in children has not been established. Notice/Disclaimer: The clinical information contained herein is provided for the express purpose of aiding the Pharmacy and Therapeutics ("P&T") Committee members in reviewing medications for inclusion in or exclusion from the Preferred Drug List. This information is not intended nor should it be used as a substitute for the expertise, skill, and judgment of physicians, pharmacists, or other healthcare professionals. The absence of a warning for any given drug or drug combination should not be construed to indicate that the drug or drug combination is safe, appropriate or effective for any given patient. This information is intended to supplement the knowledge and additional resources available to the P&T Committee members and should not be considered the sole criteria used by the P&T Committee in deciding what medications will be included or excluded from the Preferred Drug List. PDL Drug Class Review First Health Services Proprietary and Confidential Unauthorized Reproduction and/or Distribution is Strictly Prohibited Page 2 Drug Class 5-HT3 Receptor Antagonists (Anti- Emetics) Use in Pregnancy All of the 5-HT3 receptor antagonists are classified as pregnancy category B. Efficacy Few head-to-head comparative studies for the prevention of post-operative nausea and vomiting (PONV) exist with the 5-HT3 receptor antagonists. However, studies of individual agents or in comparison to traditional antiemetics show similar response rates for the prevention of PONV. Oral ondansetron and dolasetron have been shown to be effective for the prevention of PONV when compared to placebo. Trials of parenteral granisetron have shown it to be effective but an optimal dose is unclear. There are no published studies with oral granisetron in the prevention of PONV due to general anesthesia or opioid-induced nausea and vomiting. Response rates were comparable to those seen with droperidol and metoclopramide. There are no published studies supporting the use of granisetron for treating PONV. Several studies have supported the efficacy of dolasetron, granisetron or ondansetron in the prevention of radiotherapy induced nausea and vomiting. When these agents are used, the drug should be given on each day of radiotherapy with oral administration being the preferred route. The American Society of Clinical Oncology (ASCO) Clinical Practice Guidelines concludes a 5-HT3 receptor antagonists should be given with or without a corticosteroid before each fraction of total body irradiation and for at least 24 hours after. For intermediate risk (i.e., hemibody irradiation) a 5-HT3 receptor antagonist or a dopamine receptor antagonist should be given before each fraction. For low risk irradiation, antiemetic treatment should be given on an as-needed basis only. Dolasetron, ondansetron, and granisetron are considered equally efficacious in preventing acute chemotherapyinduced nausea and vomiting from highly emetogenic chemotherapy. Both oral dolasetron and granisetron have been proven to be highly effective in chemotherapy-induced emesis from high-dose cisplatin. Response rates have equaled those obtained from the use of parenteral formulations. Similar response rates are seen with oral dolasetron, granisetron, and ondansetron when used for prophylaxis of acute chemotherapy-induced emesis from moderately emetogenic chemotherapy. In summary, the 5-HT3 receptor antagonists are an essential part of the armamentarium in the prevention of postoperative nausea and vomiting and in the prevention of chemotherapy- and radiotherapy-induced nausea and vomiting. Currently, the optimal approach to controlling delayed emesis remains controversial. Prevention of postoperative nausea and vomiting (PONV) should be reserved for use in patients with high-risk factors. Clinical studies suggest clinical interchangeability for most patients; the availability of at least one agent without restrictions has been recommended. Notice/Disclaimer: The clinical information contained herein is provided for the express purpose of aiding the Pharmacy and Therapeutics ("P&T") Committee members in reviewing medications for inclusion in or exclusion from the Preferred Drug List. This information is not intended nor should it be used as a substitute for the expertise, skill, and judgment of physicians, pharmacists, or other healthcare professionals. The absence of a warning for any given drug or drug combination should not be construed to indicate that the drug or drug combination is safe, appropriate or effective for any given patient. This information is intended to supplement the knowledge and additional resources available to the P&T Committee members and should not be considered the sole criteria used by the P&T Committee in deciding what medications will be included or excluded from the Preferred Drug List. PDL Drug Class Review First Health Services Proprietary and Confidential Unauthorized Reproduction and/or Distribution is Strictly Prohibited Page 3 Summary of Indications1-6 Dolasetron Granisetron Ondansetron Indications Anzemet® Prevention of PONV+ Prevention of CINV‡ - highly emetogenic Prevention of CINV‡ –moderately emetogenic RINV§ Oral √ √ Kytril® Parenteral √ √ √ Oral √ √ √ Zofran®, Zofran® ODT* Parenteral √ √ √ Oral √ √ √ Parenteral √ √ √ + Post-operative nausea and vomiting Chemotherapy induced nausea and vomiting Radiotherapy induced nausea and vomiting ‡ § The 5-HT3 receptor antagonists are not indicated by the FDA to treat delayed chemotherapy-induced nausea and vomiting, anticipatory nausea and vomiting from chemotherapy, or breakthrough vomiting from chemotherapy. Available Products Products Date of FDA Approval18 Generic Available18 Dolasetron Granisetron Ondansetron Anzemet® Kytril® Oral, Injection 1997 Oral tablets1995 Oral Solution 2001 Injection 1994 Zofran®, Zofran® ODT* Oral 4 mg & 8 mg 1992; 24 mg 1999 Oral Solution 1997 ODT 1999 Injection 1991 No (generic expected mid-2006) No No Manufacturer1-6 Sanofi-Aventis Roche GlaxoSmithKline Dosage Forms/ Route of Administration 1-6 Tablets: 50 mg, 100 mg Injection: 20 mg/ml (Available in 0.625 ml single-use ampules or vials; 5 ml single-use vial & 25 ml multi-dose vial) Tablets: 1 mg Oral Solution: 2 mg/10 ml Injection: 1 mg/1 ml as free base [Available in 1 ml single-use and 4 ml multiuse vial; 0.1 mg/1ml (free base) in preservative free single-use vials] Prevention of PONV+ 100 mg within 2 hours of surgery Prevention of CINV‡ -moderately emetogenic 100 mg 1 hour before Prevention of CINV‡ - highly emetogenic 1 mg twice daily 1st dose hour or 2 mg daily 1 hour prior to treatment # Prevention of CINV‡ -moderately emetogenic 1 mg twice daily 1st dose hour or 2 mg daily 1 hour prior to treatment# RINV§ 2 mg within 1 hour of therapy Tablets: 4 mg, 8 mg, 24 mg ODT tablets: 4 mg, 8 mg Oral Solution: 4 mg/ 5ml Injection: 2 mg/ml (Available in 2 ml singledose and 20-ml multidose vials; 32 mg/50 ml in 5% dextrose) Prevention of PONV+ 16 mg dose 1 hour prior to treatment# Prevention of CINV‡ - highly emetogenic 24 mg tablet single dose 30 min prior to start of chemo 8 mg twice daily; first dose 1 hour prior to treatment# Prevention of CINV‡ -moderately emetogenic 8 mg 1-2 hours prior to treatment# RINV§ 8 mg 1-2 hours prior to treatment# Dosing Guidelines for Healthy Adults1-6 *Oral disintegrating tablet +Postoperative nausea and vomiting (PONV) ‡Chemotherapy induced nausea and vomiting (CINV) §Radiotherapy induced nausea and vomiting #Given prior to chemotherapy or anesthesia Notice/Disclaimer: The clinical information contained herein is provided for the express purpose of aiding the Pharmacy and Therapeutics ("P&T") Committee members in reviewing medications for inclusion in or exclusion from the Preferred Drug List. This information is not intended nor should it be used as a substitute for the expertise, skill, and judgment of physicians, pharmacists, or other healthcare professionals. The absence of a warning for any given drug or drug combination should not be construed to indicate that the drug or drug combination is safe, appropriate or effective for any given patient. This information is intended to supplement the knowledge and additional resources available to the P&T Committee members and should not be considered the sole criteria used by the P&T Committee in deciding what medications will be included or excluded from the Preferred Drug List. PDL Drug Class Review First Health Services Proprietary and Confidential Unauthorized Reproduction and/or Distribution is Strictly Prohibited Page 4 Pharmacology1-6 The 5-HT3 receptor antagonists are highly selective agents which competitively inhibit the binding of serotonin to 5-HT3 receptors. Their antiemetic effects result from peripheral blockage of 5-HT3 receptors on vagal nerve terminals and central blockage in the area postrema and nucleus tractus solitarius. This equates with chemoreceptor trigger zone (CTZ) blockade. The 5-HT3 receptor antagonists have essentially no affinity for alpha adrenergic, dopaminergic, or histamine receptors. This characteristic eliminates the undesirable side effects of sedation, hypotension, and extrapyramidal reactions that occur when using other nonselective antiemetic agents. Pharmacokinetics1-6 Products Bioavailability (%) Protein binding (%) Metabolism Half-life (hours) Excretion † Dolasetron Granisetron Ondansetron Anzemet® 75 69-77 Hepatic-Cytochrome P450 7 Renal (50%) Kytril® 60 60 Hepatic-Cytochrome P450 6.2 Renal (11% unchanged) Zofran®, Zofran® ODT* 60 70-76 Hepatic-Cytochrome P450 3 Renal (5% unchanged) Dolasetron undergoes rapid and near complete metabolism to the active metabolite hydrodolasetron in </= 10 minutes. Contraindications1-6 All are contraindicated in patients with known hypersensitivity to the drug or to any of its components. Drug Interactions1-6 Dolasetron, granisetron and ondansetron do not induce or inhibit the cytochrome P450 enzyme system. Inducers or inhibitors of these P-450 enzymes may alter the clearance or half-life of the 5-HT3 receptor antagonists. There have been no major drug-drug interaction studies to examine pharmacokinetic or pharmacodynamic interactions with other drugs. However, 5-HT3 receptor antagonists have been safely administered with benzodiazepines, neuroleptics, and anti-ulcer medications commonly prescribed with chemotherapy regimens. Dolasetron should be administered with caution in patients receiving anti-arrhythmics, drugs that can prolong the QTc interval, diuretics which can induce electrolyte disturbances and cumulative high dose anthracycline therapy. Precautions/Warnings/Monitoring1-6 Hypersensitivity reactions may occur in patients who have exhibited hypersensitivity to other selective 5-HT3 receptor antagonists. Adverse Effects1-6 The adverse event profile for the 5-HT3 receptor antagonists are similar including headache, malaise or fatigue, constipation, diarrhea, and dizziness. Notice/Disclaimer: The clinical information contained herein is provided for the express purpose of aiding the Pharmacy and Therapeutics ("P&T") Committee members in reviewing medications for inclusion in or exclusion from the Preferred Drug List. This information is not intended nor should it be used as a substitute for the expertise, skill, and judgment of physicians, pharmacists, or other healthcare professionals. The absence of a warning for any given drug or drug combination should not be construed to indicate that the drug or drug combination is safe, appropriate or effective for any given patient. This information is intended to supplement the knowledge and additional resources available to the P&T Committee members and should not be considered the sole criteria used by the P&T Committee in deciding what medications will be included or excluded from the Preferred Drug List. PDL Drug Class Review First Health Services Proprietary and Confidential Unauthorized Reproduction and/or Distribution is Strictly Prohibited Page 5 Dosage and Administration1-6 Prevention of PONV+ Dolasetron Granisetron oral parenteral oral 100 mg within 2 hours of surgery 12.5 mg IV 15 minutes prior# parenteral Ondansetron oral 16 mg dose 1 hour prior# parenteral 4 mg IV dose # Postoperative nausea and vomiting (PONV) Chemotherapy induced nausea and vomiting (CINV) #Given prior to chemotherapy or anesthesia + ‡ Prevention of CINV‡ highly emetogenic Prevention of CINV‡ moderately emetogenic RadiotherapyInduced Nausea & Vomiting 100 mg 1 hour before 1.8 mg/kg IV 30 minutes prior# 1 mg BID 1st dose or 2 mg QD 1 hour prior# 10 mcg/kg within 30 minutes prior# 24 mg tablet single dose 30 min prior to start of chemo 8 mg BID first dose 1 hour prior# Three 0.15 mg/kg doses infused over 15 minutes 30 min before and 4, 8 hours post first dose OR 32 mg single dose infused over 15 minutes 30 minutes prior# 1 mg BID 1st dose or 2 mg QD 1 hour prior# 10 mcg/kg within 30 minutes before# 8 mg 1-2 hours prior# 2 mg within 1 hour of therapy 8 mg 1-2 hours prior# BID= twice daily QD= daily Q8H=every 8 hours Dosage and Administration for Special Populations1-6 No dosage adjustments are necessary for the elderly, pediatric, or renal failure patients for any of the three products. Zofran sets a maximum daily dose of 8 mg for patients with severe hepatic impairment (Child-Pugh score of 10 or greater). Neither Kytril nor Anzemet require a dosage adjustment for hepatically impaired patients. Notice/Disclaimer: The clinical information contained herein is provided for the express purpose of aiding the Pharmacy and Therapeutics ("P&T") Committee members in reviewing medications for inclusion in or exclusion from the Preferred Drug List. This information is not intended nor should it be used as a substitute for the expertise, skill, and judgment of physicians, pharmacists, or other healthcare professionals. The absence of a warning for any given drug or drug combination should not be construed to indicate that the drug or drug combination is safe, appropriate or effective for any given patient. This information is intended to supplement the knowledge and additional resources available to the P&T Committee members and should not be considered the sole criteria used by the P&T Committee in deciding what medications will be included or excluded from the Preferred Drug List. PDL Drug Class Review First Health Services Proprietary and Confidential Unauthorized Reproduction and/or Distribution is Strictly Prohibited Page 6 Clinical Trials Korttila K, Clergue F, Lesser R, et al. Intravenous Dolasetron and Ondansetron in Prevention of Postoperative Nausea and Vomiting: A Multicenter, Double-blind, Placebo-controlled Study. Acta Anaesthesiologica Scandinavica 1997;41:914-22. Drug Regimens Ondansetron 4 mg IV versus Dolasetron 25 mg oral versus Dolasetron 50 mg oral versus Placebo N N= 514 Study design, demographics Randomized double-blind, placebo controlled, multi-centered Population studied: Objective, endpoints Primary Endpoint: Response to treatment and nausea incidence. Adults Doses given 15 minutes prior to induction of anesthesia Results/Comments Dose and Percentage of patients with Number Route emesis or nausea Complete Response (zero emetic episodes and no rescue medication) ondansetron 4 mg IV 130 64% dolasetron 25 mg oral 127 51% dolasetron 50 mg oral 129 71% placebo 128 49% Total Response (complete response plus no nausea up to 6 hrs post-recovery) ondansetron 4 mg IV 130 54% dolasetron 25 mg oral 127 43% dolasetron 50 mg oral 129 50% placebo 128 36% Nausea incidence ondansetron 4 mg IV 130 38% dolasetron 25 mg oral 127 43% dolasetron 50 mg oral 129 29% placebo 128 56% Drug Author’s Conclusion No significant difference between ondansetron and dolasetron 25 mg or 50 mg. Karamanlioglu B, Turan A, Memis D. Sut N. Comparison of oral dolasetron and ondansetron in the prophylaxis of postoperative nausea and vomiting in children. European Journal of Anaesthesiology 2003;20:831-835. Drug Regimens Dolasetron 1.8 mg/kg oral versus Ondansetron 0.15 mg/kg oral versus Placebo N N=150 Study design, demographics Randomized double-blind, placebo controlled, multi-centered Population studied: Children Objective, endpoints Primary Endpoint: Evaluation of nausea and vomiting by utilizing a scale of 0-3 (0=no nausea, 1=nausea; 2=retching; 3= vomiting) Results/Comments Postoperative Dolasetron period N=50 0-1 hours n % Score 0 42 84 1 4 8 2 2 4 3 2 4 Total PONV 8 16 1-24 hours 0 42 84 1 4* 8 2 2 4 3 2* 4 Total PONV 8 16 0-24 hours 0 34 68 1 8* 16 2 4 8 3 4* 8 Total PONV 16 32 *P<0.05 compared with placebo Ondansetron N=50 n % Placebo N=50 n % 40 5 2 3 10 80 10 4 6 20 35 8 2 5 15 70 16 4 10 30 36 8 1 5 14 72 16 2 10 28 26 12 2 10 24 52 24 4 20 48 26 13* 3 8* 24 52 26 6 16 48 11 20 4 15 39 22 40 8 30 78 Author’s Conclusion There were no important differences between dolasetron and ondansetron, or between ondansetron and placebo. Notice/Disclaimer: The clinical information contained herein is provided for the express purpose of aiding the Pharmacy and Therapeutics ("P&T") Committee members in reviewing medications for inclusion in or exclusion from the Preferred Drug List. This information is not intended nor should it be used as a substitute for the expertise, skill, and judgment of physicians, pharmacists, or other healthcare professionals. The absence of a warning for any given drug or drug combination should not be construed to indicate that the drug or drug combination is safe, appropriate or effective for any given patient. This information is intended to supplement the knowledge and additional resources available to the P&T Committee members and should not be considered the sole criteria used by the P&T Committee in deciding what medications will be included or excluded from the Preferred Drug List. PDL Drug Class Review First Health Services Proprietary and Confidential Unauthorized Reproduction and/or Distribution is Strictly Prohibited Page 7 Martoni A, Angelelli B, Guaraldi M, Strocchi E, Pannuti F. An Open Randomized Cross-over Study on Granisetron Versus Ondansetron in the Prevention of Acute Emesis Induced by Moderate Dose Cisplatin-containing Regimens. European Journal of Cancer 1996;32A(1):82-85. Drug Regimens Granisetron (GRA) 3 mg IV versus Ondansetron (OND) 8 mg IV + 8 mg orally Q8H for 3 doses N N= 124 Study design, demographics Randomized, crossover Objective, endpoints Primary Endpoint: Results/Comments Primary Results Emesis and nausea control First Cycle Chemotherapy Regimen: cisplatin Second Cycle First & Second Cycle n No nausea No vomiting No nausea or vomiting n No nausea No vomiting No nausea or vomiting n No nausea No vomiting No nausea or vomiting OND 58 60% 74% 59% 52 44% 61.5%. 40% 110 53% 58% 50% GRA 66 64% 76% 62% 49 55% 65% 53% 115 60% 71% 58% P* 0.70 0.83 0.69 0.25 0.73 0.20 0.27 0.61 0.21 *Person’s chi-square Author’s Conclusion: Cross-over analysis confirmed no difference between the two anti-emetic treatments. Gebbia V, Cannata G, Testa A, Curto G, Valenza R, Cipolla C, Latteri M, Gebbia N. Ondansetron versus Granisetron in the Prevention of Chemotherapy-Induced Nausea and Vomiting. Cancer 1994;74:1945-52 Drug Regimens Ondansetron (OND) 24 mg IV versus Granisetron (GRA) 3 mg IV N N=182 Study design, demographics Randomized prospective open label trial Objective, endpoints Emesis and nausea control Chemotherapy Regimen: Study 1: Highly emetogenic chemotherapy (cisplatin 70 2 mg/m or more with cyclophosphamide, epidoxorubicin or vinca alkaloids) Study 2: Moderately emetogenic chemotherapy [CMF regimen (cyclophospha mide, methotrexate & 5fluorouracil)] Results/Comments Primary Results Response Study 1 n Complete response (no vomit or retches) Major response (1-2 emetic episodes) Minor response (3-5 emetic episodes) Failure (> 5 emetic episodes) Study 1 n Complete response (no vomit or retches) Major response (1-2 emetic episodes) Minor response (3-5 emetic episodes) Failure (> 5 emetic episodes) NS=not significant OND 84 52% 29% 14% 5% 46 43% 22%. 26% 9% GRA 82 49% 24% 12% 15% 46 35% 24% 15% 26% P NS NS NS NS NS NS NS NS Author’s Conclusion: No statistically significant difference in any response category was seen between the groups. Notice/Disclaimer: The clinical information contained herein is provided for the express purpose of aiding the Pharmacy and Therapeutics ("P&T") Committee members in reviewing medications for inclusion in or exclusion from the Preferred Drug List. This information is not intended nor should it be used as a substitute for the expertise, skill, and judgment of physicians, pharmacists, or other healthcare professionals. The absence of a warning for any given drug or drug combination should not be construed to indicate that the drug or drug combination is safe, appropriate or effective for any given patient. This information is intended to supplement the knowledge and additional resources available to the P&T Committee members and should not be considered the sole criteria used by the P&T Committee in deciding what medications will be included or excluded from the Preferred Drug List. PDL Drug Class Review First Health Services Proprietary and Confidential Unauthorized Reproduction and/or Distribution is Strictly Prohibited Page 8 Perez EA, Hesketh P, et al. Comparison of Single-dose Oral Granisetron Versus Intravenous Ondansetron in the Prevention of Nausea and Vomiting Induced by Moderately Emetogenic Chemotherapy: A Multicenter, Double-Blind, Randomized Parallel Study. Journal of Clinical Oncology 1998;16:754-760. Drug Regimens Granisetron 2 mg PO versus Ondansetron 32 mg IV N N=1085 Study design, demographics Randomized, double-blind, parallel-group Objective, endpoints Emesis and nausea control Chemotherapy Treatment Cyclophospha mide Carboplatin Results/Comments Primary Results Percent of Patients Who Achieved Total Control Over 24 and 48 hours by Corticosteroid Use and Chemotherapy Type Response 0-24 hours OND GRA P Use of dexamethasone/methylprednisolone 61.9% 59.8% 0.68 Nonuse of dexamethasone/methylprednisolone 48.5% 50.0% Cyclophosphamide 55.3% 54.2% NA Carboplatin 74% 72.6% Response 0-48 hours Use of dexamethasone/methylprednisolone 48.3% 44.7% 0.384 Nonuse of dexamethasone/methylprednisolone 39.6%. 40% Cyclophosphamide 41.5% 39.8% NA Carboplatin 63.9% 57.5% Author’s Conclusion: No significant difference with emesis and nausea Stewart A, McQuade B, Cronje JDE, et al. Ondansetron Compared with Granisetron in the Prophylaxis of Cyclophosphamideinduced Emesis in Outpatients: A Multicenter, Double-blind, Double-dummy, Randomized, parallel-group study. Oncology 1995;52:202-10. Drug Regimens Granisetron 3 mg IV versus Ondansetron 8 mg IV + 8 mg PO BID for 4 days versus Ondansetron 8 mg PO BID for 4 days N N=488 Study design, demographics Randomized, double-blind, parallel-group Objective, endpoints Results/Comments Emesis control Chemotherapy Treatment Cyclophospha mide Author’s Conclusion: No significant differences in emesis control for day one. Significant difference on day 2-5 with higher rescue and withdrawal with granisetron. Notice/Disclaimer: The clinical information contained herein is provided for the express purpose of aiding the Pharmacy and Therapeutics ("P&T") Committee members in reviewing medications for inclusion in or exclusion from the Preferred Drug List. This information is not intended nor should it be used as a substitute for the expertise, skill, and judgment of physicians, pharmacists, or other healthcare professionals. The absence of a warning for any given drug or drug combination should not be construed to indicate that the drug or drug combination is safe, appropriate or effective for any given patient. This information is intended to supplement the knowledge and additional resources available to the P&T Committee members and should not be considered the sole criteria used by the P&T Committee in deciding what medications will be included or excluded from the Preferred Drug List. PDL Drug Class Review First Health Services Proprietary and Confidential Unauthorized Reproduction and/or Distribution is Strictly Prohibited Page 9 References Anzemet® tablets product information. Sanofi-Aventis Pharmaceuticals. February 2005 Anzemet® injection product information. Sanofi-Aventis Pharmaceuticals. October 2003 Kytril® tablets and solution product information. Roche Pharmaceuticals. June 2001 Kytril® injection product information. Roche Pharmaceuticals. September 2004. Zofran® and Zofran® ODT product information. GlaxoSmithKline. June 2005. Zofran® injection product information. GlaxoSmithKline. June 2005. American Society of Clinical Oncology. Recommendations for the Use of Antiemetics: Evidence-Based, Clinical Practice Guidelines. Journal of Clinical Oncology 1999;17(9):2971-2994. 8. Golembiewski J, Chernin E, Chopra T. Prevention and Treatment of Postoperative Nausea and Vomiting. Am J Health-Syst Pharm 2005;62(12):1247-1260. 9. Warr D, Bramwell V, Anderson D, Charette M, and the Systemic Treatment Disease Site Group. Use of 5-HT3 receptor antagonists in patient receiving moderately or highly emetogenic chemotherapy. Curr Oncol 2001;8:6982. 10. Korttila K, Clergue F, Lesser R, et al. Intravenous Dolasetron and Ondansetron in Prevention of Postoperative Nausea and Vomiting: A Multicenter, Double-blind, Placebo-controlled Study. Acta Anaesthesiologica Scandinavica 1997;41:914-22. 11. Karamanlioglu B, Turan A, Memis D. Sut N. Comparison of oral dolasetron and ondansetron in the prophylaxis of postoperative nausea and vomiting in children. European Journal of Anaesthesiology 2003;20:831-835. 12. Martoni A, Angelelli B, Guaraldi M, Strocchi E, Pannuti F. An Open Randomized Cross-over Study on Granisetron Versus Ondansetron in the Prevention of Acute Emesis Induced by Moderate Dose Cisplatincontaining Regimens. European Journal of Cancer 1996;32A(1):82-85. 13. Gebbia V, Cannata G, Testa A, Curto G, Valenza R, Cipolla C, Latteri M, Gebbia N. Ondansetron versus Granisetron in the Prevention of Chemotherapy-Induced Nausea and Vomiting. Cancer 1994;74:1945-52 14. Perez EA, Hesketh P, et al. Comparison of Single-dose Oral Granisetron Versus Intravenous Ondansetron in the Prevention of Nausea and Vomiting Induced by Moderately Emetogenic Chemotherapy: A Multicenter, DoubleBlind, Randomized Parallel Study. Journal of Clinical Oncology 1998;16:754-760. 15. Stewart A, McQuade B, Cronje JDE, et al. Ondansetron Compared with Granisetron in the Prophylaxis of Cyclophosphamide-induced Emesis in Outpatients: A Multicenter, Double-blind, Double-dummy, Randomized, parallel-group study. Oncology 1995;52:202-10. 16. VHA Pharmacy Benefits Management Strategic Healthcare Group and the Medical Advisory Panel, Drug Class Review – 5-Hydroxytryptamine Receptor Antagonists. August 1999. http://www.pbm.va.gov/reviews/5ht3.pdf Accessed 10/17/2005 17. Pharmacy Benefits Management Strategic Healthcare Group, Department of Veterans Affairs. http://www.pbm.va.gov/PBM/menu.asp. Accessed 3/2006. 18. Drugs@FDA http://www.accessdata.fda.gov/scripts/cder/drugsatfda/index.cfm accessed 3/2/2006. 1. 2. 3. 4. 5. 6. 7. Notice/Disclaimer: The clinical information contained herein is provided for the express purpose of aiding the Pharmacy and Therapeutics ("P&T") Committee members in reviewing medications for inclusion in or exclusion from the Preferred Drug List. This information is not intended nor should it be used as a substitute for the expertise, skill, and judgment of physicians, pharmacists, or other healthcare professionals. The absence of a warning for any given drug or drug combination should not be construed to indicate that the drug or drug combination is safe, appropriate or effective for any given patient. This information is intended to supplement the knowledge and additional resources available to the P&T Committee members and should not be considered the sole criteria used by the P&T Committee in deciding what medications will be included or excluded from the Preferred Drug List.