A Study Comparing Vemurafenib Versus Vemurafenib Plus Cobimetinib in Participants With Metastatic Melanoma

Summary

To evaluate the efficacy of vemurafenib in combination with cobimetinib (GDC-0973), compared with vemurafenib and placebo, in previously untreated BRAF V600 mutation-positive patients with unresectable locally advanced or metastatic melanoma, as measured by progression-free survival (PFS), assessed by the study site investigator.

Timeline

Start

2013-01-08

Primary completion

2014-05-09

Completion

2019-07-21

Outcome

Met primary endpoint

registry analysis (unspecified test); Cobimetinib + Vemurafenib vs Placebo + Vemurafenib; p = 0.0001; Hazard Ratio (HR) 0.51 (95% CI 0.39 to 0.68); Log Rank; NCT01689519 ↗

paper The median progression-free survival was 9.9 months in the combination group and 6.2 months in the control group PMID 25265494 ↗

release “phase 3 coBRIM study, which showed COTELLIC plus vemurafenib reduced the risk of disease worsening or death (progression-free survival; PFS)” exelixis.com ↗

release “results of the coBRIM Phase III study, which showed the MEK inhibitor cobimetinib plus Zelboraf reduced the risk of disease worsening or death by half” gene.com ↗

release “median PFS of 9.9 months for cobimetinib plus Zelboraf compared to 6.2 months with Zelboraf alone” gene.com ↗

release “coBRIM study, which showed Cotellic plus Zelboraf reduced the risk of disease worsening or death (progression-free survival; PFS) by about half” gene.com ↗

Publications

• Barteselli G, Goodman GR, Patel Y, Caro I, Xue C, McCallum S. Characterization of Serous Retinopathy Associated with Cobimetinib: Integrated Safety Analysis of Four Studies. Drug Saf. 2022 Dec;45(12):1491-1499. doi: 10.1007/s40264-022-01248-2. Epub 2022 Oct 30.
• Ascierto PA, Dreno B, Larkin J, Ribas A, Liszkay G, Maio M, Mandala M, Demidov L, Stroyakovskiy D, Thomas L, de la Cruz-Merino L, Atkinson V, Dutriaux C, Garbe C, Hsu J, Jones S, Li H, McKenna E, Voulgari A, McArthur GA. 5-Year Outcomes with Cobimetinib plus Vemurafenib in BRAFV600 Mutation-Positive Advanced Melanoma: Extended Follow-up of the coBRIM Study. Clin Cancer Res. 2021 Oct 1;27(19):5225-5235. doi: 10.1158/1078-0432.CCR-21-0809.
• 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.
• de la Cruz-Merino L, Di Guardo L, Grob JJ, Venosa A, Larkin J, McArthur GA, Ribas A, Ascierto PA, Evans JTR, Gomez-Escobar A, Barteselli G, Eng S, Hsu JJ, Uyei A, Dreno B. Clinical features of serous retinopathy observed with cobimetinib in patients with BRAF-mutated melanoma treated in the randomized coBRIM study. J Transl Med. 2017 Jun 24;15(1):146. doi: 10.1186/s12967-017-1246-0.
• Dreno B, Ribas A, Larkin J, Ascierto PA, Hauschild A, Thomas L, Grob JJ, Koralek DO, Rooney I, Hsu JJ, McKenna EF, McArthur GA. Incidence, course, and management of toxicities associated with cobimetinib in combination with vemurafenib in the coBRIM study. Ann Oncol. 2017 May 1;28(5):1137-1144. doi: 10.1093/annonc/mdx040.
• Ascierto PA, McArthur GA, Dreno B, Atkinson V, Liszkay G, Di Giacomo AM, Mandala M, Demidov L, Stroyakovskiy D, Thomas L, de la Cruz-Merino L, Dutriaux C, Garbe C, Yan Y, Wongchenko M, Chang I, Hsu JJ, Koralek DO, Rooney I, Ribas A, Larkin J. Cobimetinib combined with vemurafenib in advanced BRAF(V600)-mutant melanoma (coBRIM): updated efficacy results from a randomised, double-blind, phase 3 trial. Lancet Oncol. 2016 Sep;17(9):1248-60. doi: 10.1016/S1470-2045(16)30122-X. Epub 2016 Jul 30.
• Larkin J, Ascierto PA, Dreno B, Atkinson V, Liszkay G, Maio M, Mandala M, Demidov L, Stroyakovskiy D, Thomas L, de la Cruz-Merino L, Dutriaux C, Garbe C, Sovak MA, Chang I, Choong N, Hack SP, McArthur GA, Ribas A. Combined vemurafenib and cobimetinib in BRAF-mutated melanoma. N Engl J Med. 2014 Nov 13;371(20):1867-76. doi: 10.1056/NEJMoa1408868. Epub 2014 Sep 29.

Drugs

Evaluation	Drug	Modality	Dose	Route
Subject	Cobimetinib	Small molecule	60 mg	Oral
Subject	Vemurafenib	Small molecule	960 mg	Oral

Indications