Study to Investigate the Objective Response Rate of Dabrafenib in Combination With Trametinib in Subjects With BRAF V600 Mutation-Positive Melanoma

Summary

This was a single-arm, open-label, multi-center, Phase II study to evaluate dabrafenib and trametinib combination therapy in subjects with BRAF V600 mutation-positive, unresectable or metastatic Acral lentiginous or cutaneous melanoma. This study evaluated the objective response rate (ORR), progression free survival (PFS), duration of response, overall survival (OS), safety and efficacy, to assess steady state (all subjects) exposure to dabrafenib, dabrafenib metabolites, and trametinib and characterize the population pharmacokinetics (PK) and pharmacodynamics (PD) of dabrafenib and trametinib. Enrolled subjects were administered dabrafenib 150 milligram (mg) orally twice daily and trametinib 2 mg orally once daily. Treatment continued until disease progression, death, unacceptable toxicity, or withdrawal of consent, or study closure. After treatment discontinuation, subjects were followed for survival and disease progression as applicable.

Timeline

Start

2014-03-18

Primary completion

2018-02-23

Completion

2021-04-19

Publications

• Mao L, Ding Y, Bai X, Sheng X, Dai J, Chi Z, Cui C, Kong Y, Fan Y, Xu Y, Wang X, Tang B, Lian B, Yan X, Li S, Zhou L, Wei X, Li C, Guo J, Zhang X, Si L. Overall Survival of Patients With Unresectable or Metastatic BRAF V600-Mutant Acral/Cutaneous Melanoma Administered Dabrafenib Plus Trametinib: Long-Term Follow-Up of a Multicenter, Single-Arm Phase IIa Trial. Front Oncol. 2021 Aug 24;11:720044. doi: 10.3389/fonc.2021.720044. eCollection 2021.
• Si L, Zhang X, Shin SJ, Fan Y, Lin CC, Kim TM, Dechaphunkul A, Maneechavakajorn J, Wong CS, Ilankumaran P, Lee DY, Gasal E, Li H, Guo J. Open-label, phase IIa study of dabrafenib plus trametinib in East Asian patients with advanced BRAF V600-mutant cutaneous melanoma. Eur J Cancer. 2020 Aug;135:31-38. doi: 10.1016/j.ejca.2020.04.044. Epub 2020 Jun 10.

Drugs

Indications