Refractory Multiple Myeloma

This phase II MATCH treatment trial evaluates the effectiveness of osimertinib (AZD9291) in treating patients with cancer that has certain genetic changes called EGFR mutations. Osimertinib is in a class of medications called kinase inhibitors. It works by blocking the action of mutant forms of the EGFR protein, which play a key role in tumor cell growth. Osimertinib may cause tumor cell death and inhibit tumor growth in EGFR-overexpressing tumor cells, thereby stopping or slowing the spread of tumor cells.