A Randomised Study of Consolidation CTRT Versus Observation After First Line Chemotherapy in Advanced Gallbladder Cancer

This will be a phase III randomized trial of advanced gall bladder cancers. 140 patients will be randomized. Randomisation will be on a 1:1 ratio between the experimental arm and the control arm. Observation Arm : 6 cycles of Chemotherapy with Gemcitabine and Cisplatin will be followed by observation Chemotherapy followed by Chemo-radiotherapy Arm (CTRT): 6 cycles of Chemotherapy with Gemcitabine and Cisplatin will be followed by Concurrent Chemo-radiation with capecitabine (experimental arm).