A Study of Vemurafenib and GDC-0973 (Cobimetinib) in Participants With BRAFV600E Mutation-Positive Metastatic Melanoma

July 26, 2019 updated by: Hoffmann-La Roche

A Phase IB, Open-Label, Dose-Escalation Study Evaluating the Safety, Tolerability and Pharmacokinetics of Vemurafenib in Combination With GDC-0973 (Cobimetinib) When Administered in BRAFV600E Mutation-Positive Patients Previously Treated (But Without Prior Exposure to BRAF or MEK Inhibitor Therapy) or Previously Untreated for Locally Advanced/Unresectable or Metastatic Melanoma or Those Who Have Progressed After Treatment With Vemurafenib

This open-label, dose-escalation study of vemurafenib in combination with cobimetinib will evaluate the safety, tolerability and pharmacokinetics in participants with BRAFV600 mutation-positive metastatic melanoma. Participants with previously untreated, BRAFV600E mutation-positive, locally advanced/unresectable or metastatic melanoma or those who have progressed on vemurafenib monotherapy immediately prior to enrolling in this trial are eligible. Participants will be assigned to different cohorts with escalating oral doses of vemurafenib and cobimetinib. This study consists of 2 stages, Stage 1 (Dose Escalation Stage [DES] and Cohort Expansion Stage [CES]) and the anticipated time on study treatment is until disease progression, unacceptable toxicity or any other discontinuation criterion is met.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
131

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Australia
    • Victoria
      • Melbourne, Victoria, Australia, 3000
        • Peter Maccallum Cancer Institute; Medical Oncology
  • United States
    • California
      • Los Angeles, California, United States, 90024
        • UCLA Department of Medicine
      • San Francisco, California, United States, 94115
        • University of California at San Francisco
      • Santa Monica, California, United States, 90025
        • The Angeles Clinic and Research Institute, Santa Monica Office
    • Colorado
      • Aurora, Colorado, United States, 80045
        • University of Colorado; Anschutz Cancer Pavilion
    • Illinois
      • Chicago, Illinois, United States, 60637
        • University of Chicago
    • Indiana
      • Indianapolis, Indiana, United States, 46202
        • Indiana University - Department of Medicine, Division of Gastroenterology/Hepatology
    • Michigan
      • Detroit, Michigan, United States, 48201
        • Karmanos Cancer Inst. ; Hudson Webber; Cancer Research Building
    • New York
      • New York, New York, United States, 10036
        • New York University Medical Center
    • Tennessee
      • Nashville, Tennessee, United States, 37232
        • Vanderbilt University Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Participants with histologically confirmed melanoma (unresectable Stage IIIc and Stage IV metastatic melanoma, as defined by American Joint Committee on Cancer [AJCC])
  • Measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) Version (V) 1.1
  • Eastern Cooperative Oncology Group (ECOG) Performance Status of less than or equal to (</=) 1

  • Participants must

    1. be previously untreated for locally advanced/unresectable or metastatic melanoma or
    2. previously treated but without prior exposure to any BRAF or MEK inhibitor therapy or
    3. progressed on vemurafenib while participating in a Phase I (including clinical pharmacology studies), II, or III clinical study or expanded access programs (EAP) immediately prior to enrollment in this study or
    4. progressed on vemurafenib administered in a postmarketing setting immediately prior to enrollment in this study.
  • Life expectancy >/=12 weeks

Exclusion Criteria:

  • History of prior significant toxicity from another RAF or MEK pathway inhibitor requiring discontinuation of treatment
  • Palliative radiotherapy within 2 weeks prior to first dose of study drug treatment
  • Experimental therapy within 4 weeks prior to first dose of study drug treatment except vemurafenib
  • Major surgery within 4 weeks of first dose of study drug treatment or planning a major surgery during the study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: NON_RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
EXPERIMENTAL: DES (Cohort 1): 60 mg Cobimetinib + 720 mg Vemurafenib
Participants will receive oral 60 milligrams (mg) cobimetinib once daily (QD) on Days 1-14, followed by 14 days off on Days 15-28 (14/14 dosing schedule) and oral 720 mg vemurafenib twice daily (BID) on Days 1-28 of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
Drug: vemurafenib
Participants will receive vemurafenib 720 or 960 mg along with cobimetinib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
EXPERIMENTAL: DES (Cohort 1A): 60 mg Cobimetinib + 720 mg Vemurafenib
Participants will receive oral 60 mg cobimetinib QD on Days 1-21, followed by 7 days off on Days 22-28 (21/7 dosing schedule) and oral 720 mg vemurafenib BID on Days 1-28 of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
Drug: vemurafenib
Participants will receive vemurafenib 720 or 960 mg along with cobimetinib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
EXPERIMENTAL: DES (Cohort 1B): 60 mg Cobimetinib + 960 mg Vemurafenib
Participants will receive oral 60 mg cobimetinib QD on 21/7 dosing schedule and oral 960 mg vemurafenib BID on Days 1-28 of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
Drug: vemurafenib
Participants will receive vemurafenib 720 or 960 mg along with cobimetinib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
EXPERIMENTAL: DES (Cohort 1C): 60 mg Cobimetinib + 720 mg Vemurafenib
Participants will receive oral 60 mg cobimetinib QD on Days 1-28 (28/0 dosing schedule) and oral 720 mg vemurafenib BID on Days 1-28 of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
Drug: vemurafenib
Participants will receive vemurafenib 720 or 960 mg along with cobimetinib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
EXPERIMENTAL: DES (Cohort 1D): 60 mg Cobimetinib + 960 mg Vemurafenib
Participants will receive oral 60 mg cobimetinib QD on 28/0 dosing schedule and oral 960 mg vemurafenib BID on Days 1-28 of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
Drug: vemurafenib
Participants will receive vemurafenib 720 or 960 mg along with cobimetinib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
EXPERIMENTAL: DES (Cohort 2): 80 mg Cobimetinib + 720 mg Vemurafenib
Participants will receive oral 80 mg cobimetinib QD on 14/14 dosing schedule and oral 720 mg vemurafenib BID on Days 1-28 of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
Drug: vemurafenib
Participants will receive vemurafenib 720 or 960 mg along with cobimetinib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
EXPERIMENTAL: DES (Cohort 2A): 100 mg Cobimetinib + 720 mg Vemurafenib
Participants will receive oral 100 mg cobimetinib QD on 14/14 dosing schedule and oral 720 mg vemurafenib BID on Days 1-28 of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
Drug: vemurafenib
Participants will receive vemurafenib 720 or 960 mg along with cobimetinib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
EXPERIMENTAL: DES (Cohort 3): 60 mg Cobimetinib + 960 mg Vemurafenib
Participants will receive oral 60 mg cobimetinib QD on 14/14 dosing schedule and oral 960 mg vemurafenib BID on Days 1-28 of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
Drug: vemurafenib
Participants will receive vemurafenib 720 or 960 mg along with cobimetinib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
EXPERIMENTAL: DES (Cohort 4): 80 mg Cobimetinib + 960 mg Vemurafenib
Participants will receive oral 80 mg cobimetinib QD on 14/14 dosing schedule and oral 960 mg vemurafenib BID on Days 1-28 of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
Drug: vemurafenib
Participants will receive vemurafenib 720 or 960 mg along with cobimetinib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
EXPERIMENTAL: Cobimetinib Monotherapy (100 mg or 60 mg)
Participants will receive oral 60 mg cobimetinib QD on 21/7 dosing schedule, or oral 100 mg cobimetinib QD on 14/14 dosing schedule of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
EXPERIMENTAL: CES (Cohort 1A): 60 mg Cobimetinib + 720 mg Vemurafenib
Participants will receive oral 60 mg cobimetinib QD on 21/7 dosing schedule and oral 720 mg vemurafenib BID on Days 1-28 of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
Drug: vemurafenib
Participants will receive vemurafenib 720 or 960 mg along with cobimetinib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
EXPERIMENTAL: CES (Cohort 1B): 60 mg Cobimetinib + 960 mg Vemurafenib
Participants will receive oral 60 mg cobimetinib QD on 21/7 dosing schedule and oral 960 mg vemurafenib BID on Days 1-28 of every cycle (1 Cycle=28 Days), until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Drug: Cobimetinib
Participants will receive cobimetinib 60 to 100 mg at any of the 3 dosing schedules with or without vemurafenib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.
Other Names:
  • GDC-0973
Drug: vemurafenib
Participants will receive vemurafenib 720 or 960 mg along with cobimetinib in cycles of 28 days each until disease progression, unacceptable toxicity, or any other discontinuation criteria are met.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Participants With Dose-Limiting Toxicities (DLTs) During DES in Combination Cohorts
Time Frame: 28 Days
DLT is defined as 1 of the following toxicities considered by the investigator to be related to study treatment: a) Grade 3 nausea, vomiting or diarrhea that resolved to Grade less than or equal to (≤) 1 within 7 days, b) Grade 3 rash or photosensitivity that resolved to Grade ≤2 within 7 days, c) Grade 3 cutaneous squamous cell carcinoma (cuSCC) that was subsequently resected, d) Grade greater than or equal to (≥) 3 fatigue or hyperuricemia that resolved to Grade ≤2 within 7 days, e) Grade 3 fever, f) Grade 3 or 4 elevation of serum creatine phosphokinase (CPK) levels, which is asymptomatic, deemed by the investigator to be clinically insignificant and that returned to Grade ≤2 during the 14-day cobimetinib treatment holiday, g) Grade ≥3 febrile neutropenia, h) Grade ≥4 neutropenia (absolute neutrophil count [ANC] less than <500/microliter [μL]), i) Grade ≥4 thrombocytopenia, j) Grade ≥4 anemia, k) Grade ≥3 elevation of total bilirubin, hepatic transaminase or alkaline phosphatase.
28 Days
Maximum Tolerated Doses (MTD) of Vemurafenib and Cobimetinib When Administered in Combination in DES
Time Frame: 28 Days
The highest dose level(s) at which fewer than one-third of participants experienced a DLT was declared the MTD. DLT is defined as 1 of the following toxicities considered by the investigator to be related to study treatment: a) Grade 3 nausea, vomiting or diarrhea that resolved to Grade ≤1 within 7 days, b) Grade 3 rash/photosensitivity that resolved to Grade ≤2 within 7 days, c) Grade 3 cuSCC that was subsequently resected, d) Grade ≥3 fatigue/hyperuricemia that resolved to Grade ≤2 within 7 days, e) Grade 3 fever, f) Grade 3 or 4 elevation of serum CPK levels, which is asymptomatic, deemed to be clinically insignificant and returns to Grade ≤2 during the 14-day cobimetinib treatment holiday, g) Grade ≥3 febrile neutropenia, h) Grade ≥4 neutropenia (ANC <500/ μL), i) Grade ≥4 thrombocytopenia, j) Grade ≥4 anemia, k) Grade ≥3 elevation of total bilirubin, hepatic transaminase or alkaline phosphatase.
28 Days
Maximum Plasma Concentration (Cmax) of Cobimetinib on Day 1, Cycle 1
Time Frame: Cycle 1: predose (0 hours [hr]) on Days 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Cycle 1: predose (0 hours [hr]) on Days 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Cmax of Cobimetinib on Day 1, Cycle 1 in Cohort 3
Time Frame: Cycle 1: predose (0 hr) on Days 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Cycle 1: predose (0 hr) on Days 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Time Taken to Reach Maximum Plasma Concentration (Tmax) of Cobimetinib on Day 1, Cycle 1
Time Frame: Cycle 1: predose (0 hr) on Days 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Cycle 1: predose (0 hr) on Days 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Area Under Concentration Versus Time Curve (AUC) Over a Period of 24 Hours (AUC0-24) of Cobimetinib on Day 1, Cycle 1
Time Frame: Cycle 1: predose (0 hr) on Days 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Cycle 1: predose (0 hr) on Days 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
AUC0-24 of Cobimetinib on Day 1, Cycle 1 of Cohort 3
Time Frame: Cycle 1: predose (0 hr) on Days 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Cycle 1: predose (0 hr) on Days 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Cmax of Cobimetinib on Day 14 (Steady State), Cycle 1
Time Frame: Cycle 1: predose (0 hr) on Days 8, 14; 0.5, 1, 2, 4, 6 hr postdose on Day 14
Cycle 1: predose (0 hr) on Days 8, 14; 0.5, 1, 2, 4, 6 hr postdose on Day 14
Tmax of Cobimetinib on Day 14 (Steady State), Cycle 1
Time Frame: Cycle 1: predose (0 hr) on Days 8, 14; 0.5, 1, 2, 4, 6 hr postdose on Day 14
Cycle 1: predose (0 hr) on Days 8, 14; 0.5, 1, 2, 4, 6 hr postdose on Day 14
AUC0-24 of Cobimetinib on Day 14, Cycle 1
Time Frame: Cycle 1: predose (0 hr) on Days 8, 14; 0.5, 1, 2, 4, 6 hr postdose on Day 14
Cycle 1: predose (0 hr) on Days 8, 14; 0.5, 1, 2, 4, 6 hr postdose on Day 14
Clearance (CL) of Cobimetinib on Day 14 (Steady State), Cycle 1
Time Frame: Cycle 1: predose (0 hr) on Days 8, 14; 0.5, 1, 2, 4, 6 hr postdose on Day 14
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes.
Cycle 1: predose (0 hr) on Days 8, 14; 0.5, 1, 2, 4, 6 hr postdose on Day 14
Cmax of Vemurafenib on Day -1, Cycle 1 in Participants Previously Treated With Vemurafenib Prior to Enrollment Into This Study
Time Frame: Predose (0 hr) on Days -1, 1; 2, 4, 6, 8 hr postdose on Day -1
Predose (0 hr) on Days -1, 1; 2, 4, 6, 8 hr postdose on Day -1
Cmax of Vemurafenib on Day -1, Cycle 1 of Cohorts 1C and 2A in Participants Previously Treated With Vemurafenib Prior to Enrollment Into This Study
Time Frame: Predose (0 hr) on Day -1, 1; 2, 4, 6, 8 hr postdose on Day -1
Predose (0 hr) on Day -1, 1; 2, 4, 6, 8 hr postdose on Day -1
Tmax of Vemurafenib on Day -1, Cycle 1 in Participants Previously Treated With Vemurafenib Prior to Enrollment Into This Study
Time Frame: Predose (0 hr) on Day -1, 1; 2, 4, 6, 8 hr postdose on Day -1
Predose (0 hr) on Day -1, 1; 2, 4, 6, 8 hr postdose on Day -1
Cmax of Vemurafenib on Day 1, Cycle 1 in BRAFi-naïve Participants
Time Frame: Predose (0 hr) on Day 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Predose (0 hr) on Day 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Cmax of Vemurafenib on Day 1, Cycle 1 in Cohort 1A in BRAFi-naïve Participants
Time Frame: Predose (0 hr) on Day 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Predose (0 hr) on Day 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Tmax of Vemurafenib on Day 1, Cycle 1 in BRAFi-naïve Participants
Time Frame: Predose (0 hr) on Day 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Predose (0 hr) on Day 1, 2; 0.5, 1, 2, 4, 6 hr postdose on Day 1
Cmax of Vemurafenib on Day 14, Cycle 1
Time Frame: Predose (0 hr) on Days 14, 15; 0.5, 1, 2, 4, 6, 8 hr postdose on Day 14
Predose (0 hr) on Days 14, 15; 0.5, 1, 2, 4, 6, 8 hr postdose on Day 14
Tmax of Vemurafenib on Day 14, Cycle 1
Time Frame: Predose (0 hr) on Days 14, 15; 0.5, 1, 2, 4, 6, 8 hr postdose on Day 14
Predose (0 hr) on Days 14, 15; 0.5, 1, 2, 4, 6, 8 hr postdose on Day 14

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With an Objective Response of Complete Response (CR) or Partial Response (PR) According to Response Evaluation Criteria in Solid Tumors (RECIST) Version (V) 1.1
Time Frame: Assessed at screening (within 28 days prior to initiation of Cycle 1), every 6 weeks thereafter until disease progression (up to 82 months)
Tumor response of CR or PR is considered as objective response. CR: disappearance of all target lesions, reduction in short axis <10 millimeters in pathological lymph nodes (target and non-target lesions); PR: at least a 30 percent (%) decrease in the sum of the longest diameter of target lesions, taking as reference the baseline sum longest diameter. Responses were confirmed by repeat assessments ≥4 weeks after initial documentation.
Assessed at screening (within 28 days prior to initiation of Cycle 1), every 6 weeks thereafter until disease progression (up to 82 months)
Percentage of Participants With Disease Progression According to RECIST V 1.1
Time Frame: Assessed at screening (within 28 days prior to initiation of Cycle 1), every 6 weeks thereafter until disease progression or death (up to 82 months)
Progressive disease (PD) according to RECIST V 1.1: at least a 20% increase in the sum of the longest diameter of target lesions, taking as reference the smallest sum on study (nadir), including baseline; in addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm; appearance of 1 or more lesions is also considered as progression.
Assessed at screening (within 28 days prior to initiation of Cycle 1), every 6 weeks thereafter until disease progression or death (up to 82 months)
Median Duration of Response (DOR)
Time Frame: Time from first occurrence of objective response until the time of disease progression or death from any cause (up to 82 months)
Duration of response, defined as the time from first occurrence of a documented objective response until the time of disease progression, as determined by investigator review of tumor assessments using RECIST v 1.1, or death from any cause during the study (that is within 30 days after the last dose of study treatment).
Time from first occurrence of objective response until the time of disease progression or death from any cause (up to 82 months)
Overall Survival (OS)
Time Frame: Assessed at screening (within 28 days prior to initiation of Cycle 1), every 6 weeks thereafter until disease progression or death (up to 82 months)
OS was defined as the time from the date of randomization to the date of death due to any cause. Participants were censored at the last date of tumor measurement, the last date in the study drug log, or the date of last follow-up. OS analyzed using Kaplan-Meier estimate.
Assessed at screening (within 28 days prior to initiation of Cycle 1), every 6 weeks thereafter until disease progression or death (up to 82 months)
Average Percent Change From Baseline in Fluorodeoxyglucose-positron Emission Tomography (FDG-PET) at Cycle 1 and Cycle 2
Time Frame: Cycle 1 (Days 10 to 14), Cycle 2 (Days 14+7)
The pharmacodynamic effect of cobimetinib in combination with vemurafenib was assessed by measuring changes in FDG uptake as characterized by the lean body mass corrected (LBM) maximum standardized uptake value (SUV max) measurement using FDG-PET. Post-baseline timepoint Cycle 1 was averaged between Days 10 to 14 and Cycle 2 for Days 14+7.
Cycle 1 (Days 10 to 14), Cycle 2 (Days 14+7)
Pharmacodynamics: Number of Participants With Mitogen-Activated Protein Kinase (MAPK) Inhibition, as Assessed by Immunohistochemistry (IHC)
Time Frame: At baseline; Cycle 1: Day 14; at disease progression (Up to 32 months)
Changes in effector molecules of the MAPK pathway that are directly or indirectly affected by BRAF and MEK inhibition (including but not limited to ERK and phosphorylated ERK and MEK) by IHC using biopsies at baseline, between Days 10-14 of Cycle 1, and at disease progression. IHC is a staining process performed on fresh/frozen tumor tissue samples.
At baseline; Cycle 1: Day 14; at disease progression (Up to 32 months)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Hoffmann-La Roche

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 17, 2011

Primary Completion (ACTUAL)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2013

Study Completion (ACTUAL)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 12, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 5, 2011

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 5, 2011

First Posted (ESTIMATE)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 7, 2011

Study Record Updates

Last Update Posted (ACTUAL)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 29, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 26, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2019

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • NO25395

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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