Unresectable Extrahepatic Cholangiocarcinoma

This phase II trial tests how well giving gemcitabine, cisplatin and durvalumab alternating with pemigatinib for the treatment of biliary tract cancer with FGFR2 alterations that cannot be removed by surgery (unresectable), that has spread to nearby tissue or lymph nodes (locally advanced) or that has spread from where it first started (primary site) to other places in the body (metastatic). Gemcitabine is a chemotherapy drug that blocks the cells from making DNA and may kill cancer cells. Cisplatin is in a class of medications known as platinum-containing compounds. It works by killing, stopping or slowing the growth of cancer cells. Immunotherapy with monoclonal antibodies, such as durvalumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Pemigatinib is in a class of medications called kinase inhibitors. It works by blocking the action of an abnormal FGFR protein that signals cancer cells to multiply. This may help keep cancer cells from growing and may kill them. Giving gemcitabine, cisplatin and durvalumab alternating with pemigatinib may work well for the treatment of unresectable, locally advanced or metastatic biliary tract cancer with FGFR2 alterations.

This phase II/III trial studies how well the addition of ivonescimab to standard chemotherapy (gemcitabine and cisplatin) works when compared to usual chemotherapy and immunotherapy (durvalumab or pembrolizumab) in treating patients with biliary tract cancer that may have spread from where it first started to nearby tissue, lymph nodes, or distant parts of the body (advanced). Gemcitabine is a chemotherapy drug that blocks the cells from making deoxyribonucleic acid (DNA) and may kill tumor cells. Cisplatin is in a class of medications known as platinum-containing compounds. It works by killing, stopping or slowing the growth of tumor cells. Immunotherapy with monoclonal antibodies, such as durvalumab and pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Ivonescimab is a bispecific antibody that is directed against both the programmed cell death protein 1 (PD-1) and vascular endothelial growth factor (VEGF) protein. By targeting PD-1, ivonescimab may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. By targeting VEGF, ivonescimab may help stop the formation of blood vessels that bring oxygen and nutrients to tumor. Adding ivonescimab to standard chemotherapy may work better than usual chemotherapy and immunotherapy in lowering the chance of advanced biliary tract cancer growing or spreading.