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A Randomized, Double-blind, Placebo-controlled, Phase III Study Comparing the Combination of PDR001, Dabrafenib and Trametinib Versus Placebo, Dabrafenib and Trametinib in Previously Untreated Patients With Unresectable or Metastatic BRAF V600 Mutant Melanoma
This trial will evaluate the safety and efficacy of the combination of an anti-PD-1 antibody (PDR001), a BRAF inhibitor (dabrafenib) and a MEK inhibitor (trametinib) in unresectable or metastatic BRAF V600 mutant melanoma. It will be conducted across two arms and the investigational arm will be divided into three parts, including -
Part 1: Safety run-in, up to 18 evaluable patients with previously untreated unresectable or metastatic BRAF V600 mutated melanoma will be enrolled and treated at different dose levels to determine the recommended Phase 3 regimen of PDR001 in combination with dabrafenib and trametinib.
Part 2: Biomarker cohort, approximately 20 patients with previously unresectable or metastatic BRAF V600 mutated melanoma will be enrolled to describe changes in the immune microenvironment and biomarker modulations
Part 3: Randomized double blind, approximately 500 patients with previously untreated unresectable and metastatic BRAF V600 mutated melanoma will be enrolled to compare the anti-tumor activity of PDR001 in combination with dabrafenib and trametinib versus placebo plus dabrafenib and trametinib.