for people ages 18 years and up (full criteria)
at Orange, California and other locations
study started
completion around



This study will evaluate the safety, pharmacokinetics, and activity of belvarafenib as a single agent and in combination with either cobimetinib or cobimetinib plus nivolumab in patients with NRAS-mutant advanced melanoma who have received anti-PD-1/PD-L1 therapy.

Official Title

A Phase Ib, Open-Label, Multicenter Study to Evaluate the Safety, Pharmacokinetics, and Activity of Belvarafenib as a Single Agent and in Combination With Either Cobimetinib or Cobimetinib Plus Nivolumab in Patients With NRAS-Mutant Advanced Melanoma Who Have Received Anti-PD-1/PD-L1 Therapy


The study will evaluate three treatment regimens in three arms: a belvarafenib monotherapy arm (Belva arm); a belvarafenib plus cobimetinib arm (Belva + Cobi arm) in an initial dose-finding phase followed by an expansion phase and a belvarafenib plus cobimetinib plus nivolumab arm (Belva + Cobi + Nivo arm) in a run-in phase followed by an expansion phase.


Melanoma, Nivolumab, Belvarafenib, Cobimetinib, Belvarafenib Monotherapy, Belvarafenib Plus Cobimetinib, Belvarafenib Plus Cobimetinib Plus Nivolumab


You can join if…

Open to people ages 18 years and up

  • ECOG Performance Status of 0 or 1
  • Histologically confirmed, metastatic (recurrent or de novo Stage IV) or unresectable locally advanced (Stage III) cutaneous melanoma, that has progressed on or after treatment with anti-PD-1 or anti-PD-L1 therapy. Patients may have received up to two lines of systemic cancer therapy. Treatment with anti-PD-1/PD-L1 in the adjuvant setting is acceptable. Patients must have progressed disease at study entry
  • Documentation of NRAS mutation-positive within 5 years prior to screening
  • Tumor specimen availability
  • Adequate hematologic and end-organ function
  • Measurable disease per RECIST v1.1

You CAN'T join if...

  • Prior treatment with a pan-RAF inhibitor
  • Treatment with systemic immunotherapy agents (e.g., anti-CTLA4, anti-PD(L)1, cytokine therapy, investigational therapy, etc.) within 28 days prior to C1D1
  • Symptomatic, untreated, or actively progressing CNS metastases
  • History or signs/symptoms of clinically significant cardiovascular disease
  • Known clinically significant liver disease
  • History of autoimmune disease or immune deficiency
  • Prior treatment with a MEK inhibitor (cobimetinib arm)
  • History of or evidence of retinal pathology on ophthalmologic examination (cobimetinib arm)
  • History of immune-related AE attributed to prior anti-PD(L)1 therapy that resulted in permanent discontinuation of anti-PD(L)1 therapy (nivolumab arm)


  • Chao Family Comprehensive Cancer Center UCI
    Orange California 92868 United States
  • UCSF Helen Diller Family CCC
    San Francisco California 94158 United States


in progress, not accepting new patients
Start Date
Completion Date
Genentech, Inc.
Phase 1 Skin Cancer/Melanoma Research Study
Study Type
About 65 people participating
Last Updated