Binimetinib and Hydroxychloroquine in Treating Patients With KRAS Mutant Metastatic Pancreatic Cancer

This phase I trial studies the best dose of hydroxychloroquine when given together with binimetinib in treating patients with KRAS gene mutated pancreatic cancer that has spread to other places in the body (metastatic). Binimetinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Hydroxychloroquine may prevent autophagy, a normal process in which a cell destroys proteins and other substances which may lead to cell death. Autophagy may prevent normal cells from developing into tumor cells, but it may also protect tumor cells by destroying anticancer drugs or substances taken up by them. Giving hydroxychloroquine together with binimetinib may work better in treating patients with pancreatic cancer compared to binimetinib alone.