Ramucirumab in Treating Patients With Advanced or Metastatic, Previously Treated Biliary Cancers That Cannot Be Removed by Surgery

This phase II trial studies how well ramucirumab works in treating patients with previously treated biliary cancers that have spread to other places in the body and usually cannot be cured or controlled with treatment (advanced) or have spread to other places in the body (metastatic) and cannot be removed by surgery. Immunotherapy with monoclonal antibodies, such as ramucirumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread.