Reference Detail

Ref Type

Journal Article

PMID

(26811525)

Authors

Long GV, Weber JS, Infante JR, Kim KB, Daud A, Gonzalez R, Sosman JA, Hamid O, Schuchter L, Cebon J, Kefford RF, Lawrence D, Kudchadkar R, Burris HA, Falchook GS, Algazi A, Lewis K, Puzanov I, Ibrahim N, Sun P, Cunningham E, Kline AS, Del Buono H, McDowell DO, Patel K, Flaherty KT

Title

Overall Survival and Durable Responses in Patients With BRAF V600-Mutant Metastatic Melanoma Receiving Dabrafenib Combined With Trametinib.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Journal of clinical oncology : official journal of the American Society of Clinical Oncology	34	8	2016 Mar 10	871-8	J Clin Oncol

URL

Abstract Text

To report the overall survival (OS) and clinical characteristics of BRAF inhibitor-naive long-term responders and survivors treated with dabrafenib plus trametinib in a phase I and II study of patients with BRAF V600 mutation-positive metastatic melanoma.BRAF inhibitor-naive patients treated with dabrafenib 150 mg twice daily plus trametinib 2 mg daily (the 150/2 group) from the non-randomly assigned (part B) and randomly assigned (part C) cohorts of the study were analyzed for progression-free and OS separately. Baseline characteristics and factors on treatment were analyzed for associations with durable responses and OS.For BRAF inhibitor-naive patients in the 150/2 groups (n = 78), the progression-free survival at 1, 2, and 3 years was 44%, 22%, and 18%, respectively, for part B (n = 24) and 41%, 25%, and 21%, respectively, for part C (n = 54). Median OS was 27.4 months in part B and 25 months in part C. OS at 1, 2, and 3 years was 72%, 60%, and 47%, respectively, for part B and 80%, 51%, and 38%, respectively, for part C. Prolonged survival was associated with metastases in fewer than three organ sites and lower baseline lactate dehydrogenase. OS at 3 years was 62% in patients with normal baseline lactate dehydrogenase and 63% in patients with a complete response.Dabrafenib plus trametinib results in a median OS of more than 2 years in BRAF inhibitor-naive patients with BRAF V600 mutation-positive metastatic melanoma, and approximately 20% were progression free at 3 years. Durable responses occurred in patients with good prognostic features at baseline, which may be predictive.

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Molecular Profile	Treatment Approach

Gene Name	Source	Synonyms	Protein Domains	Gene Description	Gene Role

Therapy Name	Drugs	Efficacy Evidence	Clinical Trials

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description

Gene	Variant	Impact	Protein Effect	Variant Description	Associated with drug Resistance

Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References
BRAF V600X	melanoma	sensitive	Dabrafenib + Trametinib	Phase Ib/II	Actionable	In a Phase I/II clinical trial, patients with BRAF V600 mutant melanoma (n=78) treated with the combination of Tafinlar (dabrafenib) and Mekinist (trametinib) had a median overall survival of greater than 2 years (PMID: 26811525).	26811525