3 years ago

Biweekly cisplatin and gemcitabine in patients advanced biliary tract cancer

Christina Sing-Ying Wu, Chul W. Ahn, Manojkumar Bupathi, Josh Reardon, Tanios Bekaii-Saab, Daniel H. Ahn, Sameh Mikhail
Treatment with cisplatin with gemcitabine (CG) demonstrates a survival benefit in patients with advanced biliary tract cancer (ABTC). However, the weekly administration can add significant toxicities that may prohibit prolonged treatment. Based on previous studies, we implemented a modified biweekly regimen of GC in an attempt to optimize the prescribed regimen with an improved toxicity profile, added convenience to patients while maintaining efficacy. Patients with ABTC were treated with fixed dose rate (FDR) gemcitabine (1000mg/m2/min) and cisplatin 20mg/m2 on days 1 and 15 of every 28-day cycle. Patients received treatment until time of progression, death or discontinuation due to intolerance. Collected data included demographics, clinico-pathologic features, toxicities and survival. Kaplan-Meier curves were used to calculate the median overall survival (OS) and progression free survival (PFS). The study included 107 evaluable pts with unresectable ABTC who received the biweekly regimen. Sites of tumor included gallbladder (21.5%), ampullary (3.7%) and bile duct (74.8%). Median number of cycles was 6 (1-27). Median PFS was 8.34 (6.74, 9.23) months and median OS was 10.32 (9.10, 11.43) months. Most common grade ≥3 adverse events included neutropenia (11%), fatigue (10%) and thrombocytopenia (6.4%). Biweekly FDR GC in ABTC is associated with a more favorable toxicity profile while maintaining efficacy similar to that observed in prior clinical trials. Minimal toxicities were observed despite a prolonged course for many patients. Further prospective trials should consider evaluating the role of biweekly GC regimen in ABTC, including a potentially more favorable platform in novel experimental strategies. This article is protected by copyright. All rights reserved.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/ijc.31144

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