Testing Sunitinib as Potentially Targeted Treatment in Cancers With cKIT Genetic Changes (MATCH - Subprotocol V)

This phase II MATCH treatment trial tests how well sunitinib in treating patients with cancer that has certain genetic changes. Sunitinib is in a class of medications called kinase inhibitors. It is used in patients whose cancer has a certain mutation (change) in the cKIT gene. It works by blocking the action of mutated cKIT that signals cancer cells to multiply. This helps to stop or slow the spread of cancer cells.