A Study of Vemurafenib and GDC-0973 (Cobimetinib) in Participants With BRAFV600E Mutation-Positive Metastatic Melanoma

Summary

This open-label, dose-escalation study of vemurafenib in combination with cobimetinib will evaluate the safety, tolerability and pharmacokinetics in participants with BRAFV600 mutation-positive metastatic melanoma. Participants with previously untreated, BRAFV600E mutation-positive, locally advanced/unresectable or metastatic melanoma or those who have progressed on vemurafenib monotherapy immediately prior to enrolling in this trial are eligible. Participants will be assigned to different cohorts with escalating oral doses of vemurafenib and cobimetinib. This study consists of 2 stages, Stage 1 (Dose Escalation Stage \[DES\] and Cohort Expansion Stage \[CES\]) and the anticipated time on study treatment is until disease progression, unacceptable toxicity or any other discontinuation criterion is met.

Timeline

Start

2011-02-17

Primary completion

2013-10-01

Completion

2017-12-12

Publications

• Ascierto PA, Ribas A, Larkin J, McArthur GA, Lewis KD, Hauschild A, Flaherty KT, McKenna E, Zhu Q, Mun Y, Dreno B. Impact of initial treatment and prognostic factors on postprogression survival in BRAF-mutated metastatic melanoma treated with dacarbazine or vemurafenib +/- cobimetinib: a pooled analysis of four clinical trials. J Transl Med. 2020 Aug 3;18(1):294. doi: 10.1186/s12967-020-02458-x.
• Ribas A, Gonzalez R, Pavlick A, Hamid O, Gajewski TF, Daud A, Flaherty L, Logan T, Chmielowski B, Lewis K, Kee D, Boasberg P, Yin M, Chan I, Musib L, Choong N, Puzanov I, McArthur GA. Combination of vemurafenib and cobimetinib in patients with advanced BRAF(V600)-mutated melanoma: a phase 1b study. Lancet Oncol. 2014 Aug;15(9):954-65. doi: 10.1016/S1470-2045(14)70301-8. Epub 2014 Jul 15.
• Baudy AR, Dogan T, Flores-Mercado JE, Hoeflich KP, Su F, van Bruggen N, Williams SP. FDG-PET is a good biomarker of both early response and acquired resistance in BRAFV600 mutant melanomas treated with vemurafenib and the MEK inhibitor GDC-0973. EJNMMI Res. 2012 May 31;2(1):22. doi: 10.1186/2191-219X-2-22.

Drugs

Indications