Phase II study of MEK inhibitor trametinib alone and in combination with AKT inhibitor GSK2141795/uprosertib in patients with metastatic triple negative breast cancer.

ABSTRACT:

Purpose

While MEK inhibitors demonstrated activity in metastatic triple negative breast cancer (mTNBC) preclinical studies, preclinical, and clinical studies implicate rapid development of resistance limiting clinical benefit. The purpose of this study was to determine response rate for Trametinib alone and in combination with Uprosertib in patients with mTNBC previously treated with chemotherapy.

Methods

This was an open-label, two-part, phase II, single-arm, multicenter study. Patients first received Trametinib monotherapy (2 mg daily; Part I) then at progression transitioned to Trametinib (1.5 mg) plus Uprosertib (50 mg; Part II).

Results

Between October 2013 and January 2017, 37 patients were enrolled to Part I. Subsequently, 19 patients entered Part II. Of the 37

SUBMITTER: Prasath V 

PROVIDER: S-EPMC12796985 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature