Authors: Deepali Chaugule, Prabhat Ghanshyam Bhargava, Vikas S. Ostwal, Sujay Srinivas, Rajshree Nivrutti Patil, Aayushi Ghadi, Divya Vadodaria, Pritesh Naresh Munot, Ritam Joarder, Arvind Vaidyanathan, Mahesh Goel, Shraddha Patkar, Anant Ramaswamy
Published: 2023-06-04
DOI: 10.1200/jco.2023.41.16_suppl.e16168
Source: Full article
e16168 Background: Locally Advanced inoperable/metastatic Gallbladder Cancers (GBC) are treated with either GC, GO, or single-agent Gemcitabine based on physician discretion. However, based on about 50% response rates (ORR) and prolonged survival in the phase II trial of biliary tract patients, were treated with Gemcitabine - Cisplatin - Nab-Paclitaxel (GCNP). Methods: Consecutive series of patients diagnosed with locally advanced (liver infiltration > 5 cm, large nodes at porta, abutting duodenum), inoperable and metastatic biliary tract patients between January 2018 to August 2022 were evaluated for first-line chemotherapy GCNP, in the Multidisciplinary Joint Clinic (MDJC). The primary endpoint was ORR and the secondary endpoints were survival and tolerance. Results: A total of 142 patients received GCNP during the specified time period. The median age of the cohort was 52 years (range: 21- 79), the majority were females (61.3%), and the majority were GB (81.7%). Response rates were available in 137 patients. CR, PR, and SD were seen in 9 (6.3%), 87 (61.3%), and 24 (16.9%) respectively, for a RR of 67.6% and CBR of 84.5%. Median EFS was 9.92 (95% CI, 7.69- 12.14) months. Of the 52 patients in whom GCNP was given with NACT intent for locally advanced GBC, 17 patients underwent surgery (34%). Conclusions: Our study indicates that GCNP leads to better response rates, better chances of unresectable disease being surgically feasible at a later date, and possibly offers better survival in the GBC cohort.