Testing GDC-0449 (Vismodegib) as Potentially Targeted Treatment in Cancers With Smoothened or Patched 1 Mutant Tumors (MATCH - Subprotocol T)

This phase II MATCH treatment trial tests how well GDC-0449 (vismodegib) works for treating patients with solid tumors, lymphoma, or multiple myeloma that may have spread from where it first started to nearby tissue, lymph nodes, or distant parts of the body (advanced) or that does not respond to treatment (refractory) and who have a smoothened or patched 1 genetic mutation. Vismodegib is a type of medication called a hedgehog signaling pathway antagonist and works by blocks a type of protein involved in tissue growth and repair and may block the growth of cancer cells.