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C t Cytoreductive d ti Surgery S plus l HIPEC for Peritoneal Tumors Diane Goéré, MD, PhD Department of Surgical Oncology Gustave Roussy Institute University Paris XI Villejuif - France Since 1990s New concept : CRS + HIPEC complete CytoReductive Surgery followed by Hyperthermic IntraPeritoneal Chemotherapy Indications (Consensus Milan 2006) Carcinomatosis from colorectal cancer Peritoneal pseudomyxoma Carcinomatosis from appendix carcinoma Peritoneal mesothelioma 2 Cytoreductive Surgery plus HIPEC HIPEC : The Concept Treat all the macroscopic disease => SURGERY + Treat the microscopic disease => IP CHEMOTHERAPY + Potentiate local action => HYPERTHERMIA Surgery to treat all the MACROscopic disease - Exploration of all the abdominal cavity - Determination of the Peritoneal Cancer Index (PCI) - Resection or destruction of all the invaded areas Complete cytoreductive surgery R0/R1 Extent of the peritoneal disease Peritoneal cancer index 13 areas score LS : 0 to 3 attributed to each area LS1 : 0 à 5 mm LS2 : 5 mm à 5 cm LS3 : > 5 cm Max = 39 IP CHEMOTHERAPY to treat all the MICROscopic disease • Tissue penetration by diffusion and convection • Accumulation of the drug g into tumor cells • Peritoneal concentrations much higher than plasma concentrations Ceelen et al. Nature Reviews 2010 IP CHEMOTHERAPY to treat all the MICROscopic disease Penetration of the drug into tumor is very low, from a few cell ll layers l to t 5 mm We need a COMPLETE resection = Maximal residual volume = 1 1-2 2 mm Ceelen et al. Nature Reviews 2010 Which type of IP CHEMOTHERAPY Mitomycin Oxaliplatin IP + 5FU IV High g local concentration of oxaliplatin p Progressive doses of oxaliplatin X 17,8 Elias et al. Ann Oncol 2002 HYPERTHERMIA to potentiate the local action - cytotoxicity of cytostatic agents - blood flow and oxygenation => increases chemosensitivity - drug penetration into the tumors Temperature p between 42 and 43°C The Procedure - After complete resection of the disease (<2 mm) - Open abdominal procedure or Closed - At least 30 min at 42°C 42 C in open procedure - Up to 90 min at 41°C in closed procedure Elias et al. Chirurgie 1999 Elias et al. Int J Surg Invest 2000 Closed or Open Procedure No randomized study French Surgical Society: 1154 patients Type of procedure was not an independant prognostic factor Glehen et al. Cancer 2010 The Procedure in Gustave Roussy - After complete resection of the disease (<2 mm) - Open abdominal procedure (Coliseum) - Closed circuit, heated liquid (2L / m²) - For 30 min - At 42-44°C, with a permanent thermal control Elias et al. Chirurgie 1999 Elias et al. Int J Surg Invest 2000 The Procedure The Procedure -2 drains for instillation -2 drains for aspiration -Thermal control Postoperative complications Predictive factors age PCI Centre Centre Mortality: 3,9% 3 9% Morbidity: 31% Glehen et al.Cancer 2010 Elias et al. Ann Surg 2010 Quality of life 1993-2005 1993 2005 210 pts with HIPEC 68 pts evaluables Good G d quality lit off lif life iin 2/3 off th the pts Depressive symptoms comparable to patients treated for cancer Zenasni et al Support Care Center 2003 Cytoreductive Surgery plus HIPEC for Peritoneal Carcinomatosis from Colorectal Cancer Metastases from Colorectal Cancer 537 patients 5-y recurrence rates « early stage » : 9.5% « late stage » : 35.7% Stage I and IIa Stage IIb and III Peritoneal Carcinomatosis Tzikitis et a l. J Clin Oncol 2009 Pathogenesis ( ) Detachment of cancer cells (A) (B) Adhesion to mesothelial cells (C) Invasion into the surrounding stroma => Peritoneal dissemination is a form of local rather than systemic spread in which several biomarkers could p play y a role Ceelen and Brake Lancet Oncol 2009 Prognosis 2 randomized studies compiled (phase III trials N9741 and N9841) Stage g IV pts p : systemic y chemo (Folfox ( or Folfiri)) 2095 pts t 364 PC + OS PFS 12.7 m 58m 5.8 Franko et al. J Clin Oncol 2012 Prognosis 2 randomized studies compiled (phase III trials N9741 and N9841) Stage g IV pts p : systemic y chemo (Folfox ( or Folfiri)) 2095 pts t P<0.001 364 PC + OS PFS 12.7 58 5.8 1731 PC 17.6 m 72m 7.2 Franko et al. J Clin Oncol 2012 Prognosis 125 pts with synchronous PC 24 pts (25%) with PC only underwent R0/R1 resection R0/R1 Median Survival 25 m OS 5y 22% Muslow et al. Br J Surg 2011 Prognosis 31 pts complete resection without IP chemo 122 pts t incomplete i l t resection ti 5 y OS 36% 0 ((p<.001) 001) Peritoneal recurrence after R1/R2 : 26% Matsuda et al. Surgery 2012 A randomized study 5FU – Leucovorin Surgery + HIPEC > Systemic chemotherapy Verwall et al. J Clin Oncol, 2003; Ann Surg 2008 A comparative study 48 pts Complete Surgery R0/R1 + HIPEC Compared to 48 p pts Folfox or Folfiri (HIPEC potentially feasible But not performed for logistic reasons) Elias et al. J Clin Oncol 2008 A comparative study HIPEC Chemo IV 81% Chemo IV 24 m R0/1 + HIPEC 63 m OSS(%) Median OS p<0,05 51% 65% 13% Effecti fs: CHIP Standa rd Years Surgery + HIPEC > Systemic chemotherapy Elias et al. J Clin Oncol 2008 Survivals > 32 m 30 40% 30-40% Cotte et al. Cancer Journal 2009 Completeness of resection N=506 pts (28 institutions, 1987-2002) Total Median Survivals (m) 19.2 « Complete » Surg «Incomplete Incomplete » Surg 32.4 8.4 p<0.001 Glehen et al, J Clin Oncol 2004 Completeness of resection R2b = Median survival 5m >2.5mm >2 5mm => Survival LOWER to that with systemic chemo => No HIPEC in case of macroscopic residual disease > 2 mm Verwaal et al. J Clin Oncol 2003 Extent of the peritoneal disease N= 440 pts (23 institutions institutions, 1989-2007) Complete cytoreductive surgery (R1) + HIPEC PCI Elias et al, Ann Surg 2010 Is there a possibility of cure? Selection from a prospective data base: •Patients with CCR carcinomatosis •Macroscopic complete resection + intraperitoneal chemo •Follow-up of at least 5 years Patients excluded: •Postoperative death, •non cancer-related deaths, •a follow-up p < 5 years y since the last curative treatment Patients were considered cured if the disease-free survival interval lasted at least 5 years after the treatment of carcinomatosis or its last recurrence Goéré et al. , Ann Surg 2013 Jan 1995 to Dec 2005 C Cure rate t = 16% off th the patients ti t Multivariate analysis => We need to diagnose and treat PC at an early stage Is there a possibility of cure? Actual 10 years 102/612 pts =16 =16.6% 6% After a minimal DFS of 5 y 24/148 p pts =16.2% The cure rate of 16% after complete cytoreductive surgery of CCR carcinomatosis followed by intraperitoneal chemotherapy, in selected patients, is close to that obtained after resection of colorectal liver metastases Prognostic Similarities and Differences in Optimally Resected Liver Metastases and Peritoneal Metastases From Colorectal Cancers 287 p pts with liver mets 119 pts with PC 72% Curative treatment Median FU 62 months 39% 12% LM PC 18% 5y- OS 38.5% 36 6% 36.6% Elias et al. Ann Surg 2014 Summary Curative treatment of PC from colorectal cancer is based on complete cytoreductive surgery, without any residual id l disease di measuring i more than th 2mm, 2 followed f ll d by HIPEC, either open or closed abdominal procedure, with mitomycin or oxaliplatin. The 2 main prognostic factors are the extent of disease disease, evaluated with the PCI, and the completness of resection. ti Summary A complete cytoreductive surgery followed by HIPEC for colorectal peritoneal carcinomatosis can provide longt term survival. i l The 5-year y survival is about 40%, %, which is much g greater than that obtained with systemic chemotherapy alone. But, these results are obtained only after strigent selection of the patients, and after complete resection of the PC. Selection of the patients Age < 70 y Performance status 0-1 No major j debulking g surgery, g y PCI < 20-25 Disease under control with systemic chemotherapy N extra-abdominal No t bd i l metastases t t Contraindications to HIPEC R id l disease Residual di > 2 mm PCI > 20 20-25 25 = HIPEC Contraindications to HIPEC 1. Retroperitoneal lymph nodes invaded 2. Extended liver metastases (>3) 3. Massive involvement of the small intestine 4 4. IInvolvement l t off the th bl bladder dd requiring ii complete cystectomy Future : Increase survival 1. Low morbidity and mortality - Respective roles of surgery and HIPEC (Prodige 7 trial) - Selection of the patients 2. Low rate of recurrences - - Increase local effect New intraperitoneal treatment? Associations with systemic chemo? Selection of the patients p Adjuvant chemotherapy 3 Treat 3. T t Early E l = make k the th diagnosis di i earlier li Treat earlier to increase survival 1. Completeness p of resection 2. Extent of the disease => Need to diagnose at an early stage Diagnosis of PC 1. Few symptoms • obstruction • ascitis 2. Biology : none 3. Imaging Pfannerberg Ann Surg Oncol 2009 =>Diagnosis at an advanced stage A new Strategy : 2nd look surgery - Laparotomy : complete exploration - Diagnosis and early treatment - Decrease morbidity and mortality But, aggressive and costly treatment => For p patients at high g risk of peritoneal p carcinomatosis 55% 45% Patients at high risk of PC 1. Peritoneal carcinomatosis synchronous to primary 2. Ovarian O metastasis 3. Perforated cancer (spontaneous or iatrogenic perforation) 4. pT4 tumors 5. Obstructed cancer 6. Positive lateral margins of excision 7. Adjacent organ involvement or cancer-induced fistula 8. Bleeding cancer 9. p pT3 mucinous cancer and pT3 p signet g ring g cell cancer 10.Positive cytology either before or after cancer resection Honoré et al. Ann Surg Oncol 2012 Patients at high risk of PC 1. Peritoneal carcinomatosis synchronous to primary > 30% 2. Ovarian O metastasis 3. Perforated cancer 4. pT4 tumors 5. Obstructed cancer 6. Positive lateral margins of excision 7. Adjacent organ involvement or cancer-induced fistula 8. Bleeding cancer 9. p pT3 mucinous cancer and pT3 p signet g ring g cell cancer 10.Positive cytology either before or after cancer resection Honoré et al. Ann Surg Oncol 2012 2nd look Surgery Resection R0 of the primary « at high risk » Adjuvant chemotherapy for 6 months No evidence of recurrence •Symptoms •Serosal tumoral markers •Imaging 2nd look surgery 6 months after Complete exploration of all the abdomen Followed by systematic HIPEC open technique 42-44°C, 30 minutes Oxaliplatine + irinotecan IP 5-FU + Folinic acid IV Elias, Goéré et al. Ann Surg 2011 High risk and 2nd look Surgery 1999 and 2009 41 patients Systematic second-look surgery Diagnosis of PC : 56% Mean PCI : 8 ± 6 Total N= 41 Minime PC resected with primary (n=25) Ovarian mets (n=8) Perforated tumor (n=8) PC at 2nd look 23 (56%) 15 (60%) 5 (62%) 3 (37%) Mean PCI 8±6 9±6 7±5 5±2 Elias et al. Ann Surg 2011 2nd look Strategy •Mortality Mortality : 2% (1/41) •Morbidity (grade > 2) : 9,7% (4/41) •Peritoneal recurrence : 7 p patients (17%) ( ) -6 (26%) pts in the group of with PC at 2nd look, associated to recurrence elsewhere in 5/6 pts -1 in the group without PC at 2nd look (6%), p= 0.006 2nd look Strategy Median follow-up : 30 [9-109] months Median Survival : not attained 1,00 0,90 0,80 0,70 0,60 0,50 0,40 0,30 0,20 0 10 0,10 0,00 5-y 90% OS 90% 5-y 44% DFS 44% Overall survival Disease free survival 0 10 20 30 41 31 34 50 60 70 M onths Patients at risk 41 40 24 15 19 11 18 8 12 6 11 9 4 4 2nd look Strategy Selection criteria for high-risk patients : • Peritoneal carcinomatosis synchronous to primary • Ovarian metastasis • Perforated cancer appear to be accurate. In these patients, the second-look strategy treated peritoneal carcinomatosis preventively or at an early stage, yielding promising results. results y has allowed us to design g a multicentric randomized This study trial (comparing the second-look + HIPEC approach to standard follow-up alone) which is actually opened. ProphyloCHIP Trial (NCT01226394) •Every E 3 months th for f 2y •Then every 6 months phase III, multicentric 1st EP : 3y RFS 130 pts t •Minimal PC resected •Ovarian Metastases •Perforated Adjuvant Chemo •Folfox ou xelox •± targeted therapies No sign of recurrence Ran ndomisattion High risk patients Monitoring alone •No symptom •Seroral timor marker Neg •CTscan Neg Surgery + HIPEC •Every 3 months for 2y •Then every y 6 months Surgery for Primary 6 months < 1 month 2 months max Conclusion Results R l off complete l cytoreductive d i surgery plus l HIPEC used to treat colorectal peritoneal carcinomatosis are the same as those obtained with hepatectomy for liver metastases in selected patients; with an overall 5 year survival rate approximating 40%. Therefore, complete surgery plus HIPEC should be considered as the standard treatment of colorectal peritoneal carcinomatosis. Cytoreductive C t d ti Surgery S plus l HIPEC in the treatment of P Pseudomyxoma d Peritonei P it i Peritoneal pseudomyxoma Incidence : 1 to 2 /million/year y From appendix in most of the cases Result of the appendicular perforation (full of mucus) and of the seeding di off tumor t cells ll Diffuse intra-abdominal gelatinous collections with mucinous implants on peritoneal surfaces (« jellybelly ») Pathological Classification Pathological classification OMS 2010 •Low grade •High grade Transition from benign disease to malignacy Low g grade : dessiminated adenomucinosis (DPAM) ( ) Mucin Without cellular atypia Pathological Classification High Hi h grade d : peritoneal it l mucinous i carcinomatosis i t i (PMCA) Mucus and Cellular atypia adenocarcinoma Sub diaphragmatic resection Survival after « debulking » surgery 55 patients 1957-1983 Macroscopic complete resection : 34% Tumor progression 76% 5 year survival 53% 5-year 10-year survival 32% Gough et al. Ann Surg 2001 Survival after complete surgery + HIPEC 2298 patients From 16 specialized units Chua et al. J Clin Oncol 2012 Survival after complete surgery + HIPEC Cytoreductive surgery + intraperitoneal chemotherapy CC0/1 : 83% HIPEC : 89% Postoperative mortality 2% Major complications 24% Chua et al. J Clin Oncol 2012 Survival after complete surgery + HIPEC Median survival : 98 months (8.2 years) 10 and 15 y survivals : 63% and 59% Chua et al. J Clin Oncol 2012 Conclusion HIPEC and Pseudomyxoma Complete cytoreductive surgery plus HIPEC to treat pseudomyxoma leads to prolong survival, far much than after debulking surgery. Therefore, complete surgery plus HIPEC should be considered as the standard treatment of pseudomyxoma p y in selected patients. Thank you