Did you know that there is a trial for Cholaniocarcinoma which could be stretched for gall bladder cancer that uses AVASTIN. The protocol calls for DAVANAT/5FU Leucovorin and AVASTIN. You will find it in clinicaltrials.gov under keyword DAVANAT. The DAVANT makes the 5FU and AVASTIN non-toxic by targetting only the cancer cells.