MATCH Arm EAY131-Z1B

**Semantic type:** Intellectual Product

**Definition:** The unique identifier assigned to the arm of the Molecular Analysis for Therapy Choice (MATCH) phase II clinical trial that is investigating treatment with palbociclib in patients with tumors that have CCND1, CCND2 or CCND3 gene amplification and are RB1 positive by immunohistochemical analysis, excluding breast cancers, mantle cell lymphomas and myelomas.

**Synonyms:** - EAY131-Z1B - Z1B