Phase II study of the MEK1/MEK2 inhibitor Trametinib in patients with metastatic BRAF-mutant cutaneous melanoma previously treated with or without a BRAF inhibitor.

ABSTRACT:

Purpose

BRAF mutations promote melanoma cell proliferation and survival primarily through activation of MEK. The purpose of this study was to determine the response rate (RR) for the selective, allosteric MEK1/MEK2 inhibitor trametinib (GSK1120212), in patients with metastatic BRAF-mutant melanoma.

Patients and methods

This was an open-label, two-stage, phase II study with two cohorts. Patients with metastatic BRAF-mutant melanoma previously treated with a BRAF inhibitor (cohort A) or treated with chemotherapy and/or immunotherapy (BRAF-inhibitor naive; cohort B) were enrolled. Patients received 2 mg of trametinib orally once daily.

Results

In cohort A (n = 40), there were no confirmed objective responses and 11 patients (28%) with stable disease (SD); the median prog

SUBMITTER: Kim KB 

PROVIDER: S-EPMC4878037 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature