A Study to Investigate the Efficacy and Safety of Cobimetinib Plus Atezolizumab in Participants With Solid Tumors

April 20, 2021 updated by: Hoffmann-La Roche

A Phase II, Open-Label, Multicenter, Multicohort Study to Investigate the Efficacy and Safety of Cobimetinib Plus Atezolizumab in Patients With Solid Tumors

This is a study to evaluate the efficacy, safety, and pharmacokinetics of cobimetinib plus atezolizumab in participants with advanced solid tumors including the following cohorts: squamous cell carcinoma of the head and neck (SCCHN), urothelial carcinoma (UC), and renal cell carcinoma (RCC).

Study Overview

Study Type

Interventional

Enrollment (Actual)

87

Phase

  • Phase 2

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

      • Kortrijk, Belgium, 8500
        • Az Groeninge
      • Heidelberg, Germany, 69120
        • Universitatsklinik Heidelberg; Universitätshautklinik und Nationales Centrum für Tumorerkrankungen
      • Tübingen, Germany, 72076
        • Universitätsklinikum Tübingen; Klinik für Urologie
      • Budapest, Hungary, 1122
        • Orszagos Onkologiai Intezet
      • Debrecen, Hungary, 4032
        • Debreceni Egyetem Klinikai Kozpont
      • Nyíregyháza, Hungary, 4400
        • Jósa András Oktatókórház
      • Seoul, Korea, Republic of, 03080
        • Seoul National University Hospital
      • Seoul, Korea, Republic of, 05505
        • Asan Medical Center
      • Seoul, Korea, Republic of, (0)6351
        • Samsung Medical Center
      • Seoul, Korea, Republic of, 120-752
        • Yonsei Cancer Center
      • London, United Kingdom, EC1A 7BE
        • Barts & London School of Med; Medical Oncology
      • London, United Kingdom, SW3 6JJ
        • Royal Marsden Hospital - Fulham
      • London, United Kingdom, SW7 3RP
        • The Royal Marsden
    • District of Columbia
      • Washington, District of Columbia, United States, 20007
        • Georgetown University Medical Center
    • Kansas
      • Kansas City, Kansas, United States, 66209
        • Kansas City - Menorah Medical Center
    • New York
      • Commack, New York, United States, 11725
        • Memorial Sloan-Kettering Cancer Center
      • New York, New York, United States, 10065
        • Memorial Sloan Kettering Cancer Center
      • New York, New York, United States, 10065
        • Memorial Sloan Kettering - Basking Ridge
    • Tennessee
      • Nashville, Tennessee, United States, 37203
        • Sarah Cannon Research Institute

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

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

General Inclusion Criteria:

  • Age ≥18 years
  • Ability to comply with the study protocol, in the investigator's judgment
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1
  • Life expectancy ≥3 months, as determined by the investigator
  • Adequate hematologic and end-organ function

Cancer-Related Inclusion Criteria:

  • Patients must have measurable disease by computed tomography (CT) or magnetic resonance imaging (MRI) scan per RECIST v1.1.
  • Availability to provide a representative tumor specimen biopsy
  • Evidence of tumor progression on or after the last treatment regimen received and within 6 months prior to study enrollment
  • For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use a non-hormonal contraceptive method with a failure rate of <1% per year during the treatment period and for at least 5 months after the last dose of atezolizumab and within 3 months after the last dose of cobimetinib
  • For men: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive measures, and agreement to refrain from donating sperm during the treatment period and for at least 3 months after the last dose of cobimetinib

Exclusion Criteria:

General Exclusion Criteria:

  • Inability to swallow medications
  • Malabsorption condition that would alter the absorption of orally administered medications
  • Poor peripheral venous access
  • Prior treatment with cobimetinib or a MEK inhibitor
  • Prior treatment with T-cell co-stimulating or immune checkpoint blockade therapies, including anti-CTLA-4, anti-PD-1, and anti-PD-L1 therapeutic antibodies
  • Treatment with investigational therapy within 14 days prior to initiation of study treatment
  • Any anti-cancer therapy, including chemotherapy or hormonal therapy, within 2 weeks prior to initiation of study treatment
  • History of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric or humanized antibodies or fusion proteins
  • Known hypersensitivity to biopharmaceutical agents produced in Chinese hamster ovary cells or any component of the atezolizumab formulation, or any component of the cobimetinib formulation
  • History of serous retinopathy, retinal vein occlusion (RVO), or evidence of ongoing serous retinopathy or RVO at baseline
  • Major surgical procedure other than for diagnosis within 4 weeks prior to initiation of study treatment, or anticipation of need for a major surgical procedure during the study
  • Uncontrolled tumor-related pain
  • Uncontrolled pleural effusion, pericardial effusion, or ascites requiring repeated drainage more than once every 28 days
  • Uncontrolled hypercalcemia (ionized calcium >1.5 millimoles per liter [mmol/L], calcium >12 milligrams per deciliter [mg/dL], or corrected calcium greater than the upper limit of normal [ULN]) or symptomatic hypercalcemia requiring continued use of bisphosphonate therapy
  • Active or untreated central nervous system (CNS) metastases
  • Pregnancy or breastfeeding, or intending to become pregnant during the study

Exclusion Criteria based on Organ Function or Medical History

Cardiovascular

Patients who meet the following cardiovascular exclusion criterion will be excluded from study entry:

  • Left ventricular ejection fraction (LVEF) below the institutional lower limit of normal or <50%, whichever is lower

Infections Patients who meet any of the following infection exclusion criteria will be excluded from study entry:

  • Positive human immunodeficiency virus (HIV) test at screening
  • Active hepatitis B virus (HBV) infection (chronic or acute)
  • Active hepatitis C virus (HCV) infection
  • Active tuberculosis
  • Severe infection within 4 weeks prior to initiation of study treatment, including, but not limited to, hospitalization for complications of infection, bacteremia, or severe pneumonia
  • Treatment with therapeutic oral or IV antibiotics within 2 weeks prior to initiation of study treatment

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 Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cohort 1 - SCCHN - Treatment Naive
In participants with recurrent or advanced / metastatic SSCHN who are anti-PD-1 and anti-PD-L1 treatment naive, cobimetinib will be administered at the approved dose and schedule of 60 mg QD for 21 days and 7 days off of each 28-day cycle; and atezolizumab 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Participants will receive cobimetinib 60 mg (3 tablets of 20 mg each) orally once a day on Days 1-21 of each 28-day cycle.
Other Names:
  • Cotellic
Atezolizumab will be given at a fixed dose of 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Other Names:
  • Tecentriq
Experimental: Cohort 2 - UC - Treatment Naive
In participants with advanced / metastatic UC who are anti-PD-1 and anti-PD-L1 treatment naive, cobimetinib will be administered at the approved dose and schedule of 60 mg QD for 21 days and 7 days off of each 28-day cycle; and atezolizumab 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Participants will receive cobimetinib 60 mg (3 tablets of 20 mg each) orally once a day on Days 1-21 of each 28-day cycle.
Other Names:
  • Cotellic
Atezolizumab will be given at a fixed dose of 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Other Names:
  • Tecentriq
Experimental: Cohort 3 - RCC - Treatment Naive
In participants with metastatic RCC who are anti-PD-1 and anti-PD-L1 treatment naive, cobimetinib will be administered at the approved dose and schedule of 60 milligrams (mg) once daily (QD) for 21 days and 7 days off of each 28-day cycle; and atezolizumab 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Participants will receive cobimetinib 60 mg (3 tablets of 20 mg each) orally once a day on Days 1-21 of each 28-day cycle.
Other Names:
  • Cotellic
Atezolizumab will be given at a fixed dose of 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Other Names:
  • Tecentriq
Experimental: Cohort 4 - SCCHN - Previous Treatment Exposure
In participants with SCCHN whose disease has progressed while receiving anti-PD-1 or anti-PD-L1 therapy, cobimetinib will be administered at the approved dose and schedule of 60 mg QD for 21 days and 7 days off of each 28-day cycle; and atezolizumab 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Participants will receive cobimetinib 60 mg (3 tablets of 20 mg each) orally once a day on Days 1-21 of each 28-day cycle.
Other Names:
  • Cotellic
Atezolizumab will be given at a fixed dose of 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Other Names:
  • Tecentriq
Experimental: Cohort 5 - UC - Previous Treatment Exposure
In participants with UC whose disease has progressed while receiving anti-PD-1 or anti-PD-L1 therapy, cobimetinib will be administered at the approved dose and schedule of 60 mg QD for 21 days and 7 days off of each 28-day cycle; and atezolizumab 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Participants will receive cobimetinib 60 mg (3 tablets of 20 mg each) orally once a day on Days 1-21 of each 28-day cycle.
Other Names:
  • Cotellic
Atezolizumab will be given at a fixed dose of 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Other Names:
  • Tecentriq
Experimental: Cohort 6 - RCC - Previous Treatment Exposure
In participants with RCC whose disease has progressed while receiving anti-PD-1 or anti-PD-L1 therapy, cobimetinib will be administered at the approved dose and schedule of 60 mg QD for 21 days and 7 days off of each 28-day cycle; and atezolizumab 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Participants will receive cobimetinib 60 mg (3 tablets of 20 mg each) orally once a day on Days 1-21 of each 28-day cycle.
Other Names:
  • Cotellic
Atezolizumab will be given at a fixed dose of 840 mg by intravenous (IV) infusion on Days 1 and 15 of each 28-day cycle.
Other Names:
  • Tecentriq
Experimental: Cohort 7 - Biopsy Cohort
In participants with solid non-melanoma, non- hematologic tumors who previously developed primary or secondary resistance to an anti-PD-1 or anti-PD-L1 agent, cobimetinib will be administered at the approved dose and schedule of 60 mg QD for 21 days and 7 days off of each 28-day cycle. The first dose of atezolizumab of 840 mg by IV infusions on Day 15 of Cycle 1. Thereafter, they will receive atezolizumab 840 mg IV infusion Q2W on Days 1 and 15 of Cycle 2 and all subsequent cycles.
Participants will receive cobimetinib 60 mg (3 tablets of 20 mg each) orally once a day on Days 1-21 of each 28-day cycle.
Other Names:
  • Cotellic
Only for participants in cohort 7, the first dose of atezolizumab of 840 mg will be given by IV infusion on Day 15 of Cycle 1; thereafter, they will receive atezolizumab 840 mg IV infusion Q2W on Days 1 and 15 of Cycle 2 and all subsequent cycles.
Other Names:
  • Tecentriq

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Objective Response Rate (ORR)
Time Frame: Up to approximately 31 months
Objective response rate was defined as the percentage of participants with a complete response (CR) or a partial response (PR) on two consecutive tumor assessments ≥4 weeks apart, as determined by the investigators using Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1). CR was defined as disappearance of all lesions. PR was defined as ≥30% decrease in the sum of diameters of target lesions, in the absence of CR, new lesions, and unequivocal progression in non-target lesions.
Up to approximately 31 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall Survival (OS)
Time Frame: Up to approximately 31 months
Overall survival was defined as the time from enrollment to death from any cause. The median for OS is Kaplan-Meier estimate. 95% CI for median was computed using the method of Brookmeyer and Crowley.
Up to approximately 31 months
Progression-Free Survival (PFS)
Time Frame: Up to approximately 31 months
PFS was defined as the time from enrollment to the first occurrence of disease progression as determined by the investigator(s), using RECIST v1.1, or to death from any cause, whichever occurs first. Disease progression was defined as ≥20% increase in in the sum of diameters of target lesions, unequivocal progression in non-target lesions, and/or appearance of new lesions.
Up to approximately 31 months
Duration of Response (DOR)
Time Frame: Up to approximately 22 months
DOR was defined as the time from the first occurrence of a documented, confirmed objective response to disease progression as determined by the investigator, using RECIST v1.1, or to death from any cause, whichever occurs first. Objective response was defined as a complete response (CR) or a partial response (PR) on two consecutive tumor assessments ≥4 weeks apart. CR was defined as disappearance of all lesions. PR was defined as ≥30% decrease in the sum of diameters of target lesions, in the absence of CR, new lesions, and unequivocal progression in non-target lesions. Disease progression was defined as ≥20% increase in the sum of diameters of target lesions, unequivocal progression in non-target lesions, and/or appearance of new lesions. Presented here is median DOR at the time of primary analysis. The median for the duration of response is Kaplan-Meier estimate. 95% CI for median was computed using the method of Brookmeyer and Crowley.
Up to approximately 22 months
Disease Control Rate (DCR)
Time Frame: At 16 weeks
DCR was defined as the percentage of participants with a complete response (CR), a partial response (PR), or stable disease at 16 weeks as determined by the investigator using RECIST v1.1. CR was defined as disappearance of all lesions. PR was defined as ≥30% decrease in the sum of diameters of target lesions, in the absence of CR, new lesions, and unequivocal progression in non-target lesions. Stable disease was defined as neither sufficient shrinkage to qualify for CR or PR nor sufficient increase to qualify for disease progression. Disease progression was defined as ≥20% increase in the sum of diameters of target lesions, unequivocal progression in non-target lesions, and/or appearance of new lesions.
At 16 weeks
Number of Participants With Adverse Events
Time Frame: Up to approximately 31 months
An adverse event is any untoward medical occurrence in a subject administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events.
Up to approximately 31 months
Maximum Plasma Concentration (Cmax) of Cobimetinib
Time Frame: Day 15 of Cycle 3 (cycle is 28 days): 2-4 hours after cobimetinib dose
Cmax is the maximum (or peak) concentration that a study drug achieves in the body.
Day 15 of Cycle 3 (cycle is 28 days): 2-4 hours after cobimetinib dose
Minimum Plasma Concentration (Cmin) of Cobimetinib
Time Frame: Day 15 of Cycle 3 (cycle is 28 days): prior to cobimetinib dose
Cmin is the minimum (or trough) concentration that a study drug achieves in the body.
Day 15 of Cycle 3 (cycle is 28 days): prior to cobimetinib dose
Maximum Serum Concentration (Cmax) of Atezolizumab
Time Frame: 30 minutes following end of atezolizumab infusion on Day 15 of Cycle 3 (each cycle is 28 days)
Cmax is the maximum (or peak) concentration that a study drug achieves in the body.
30 minutes following end of atezolizumab infusion on Day 15 of Cycle 3 (each cycle is 28 days)
Minimum Serum Concentration (Cmin) of Atezolizumab
Time Frame: Prior to atezolizumab infusion on Day 1 of Cycles (each cycle is 28 days) 2, 4, 8, 12, and 16, Day 15 of Cycle 3
Cmin is the minimum (or trough) concentration that a study drug achieves in the body.
Prior to atezolizumab infusion on Day 1 of Cycles (each cycle is 28 days) 2, 4, 8, 12, and 16, Day 15 of Cycle 3
Number of Participants With Anti-drug Antibodies (ADAs)
Time Frame: Day 1 of Cycles (each cycle is 28 days) 1, 2, 4, 8, 12, and 16; Day 15 of Cycle 3; at atezolizumab treatment discontinuation visit, and <90 days after last atezolizumab infusion (up to approximately 31 months)
Participants were considered to be ADA positive if they were missing data at baseline but developed an ADA response following study drug administration (treatment-induced ADA response), or if they were ADA positive at baseline and the titer of one or more post-baseline samples was at least 4-fold greater (i.e., ≥0.60-titer units) than the titer of the baseline sample (treatment-enhanced ADA response). Participants were considered to be ADA negative if they were missing data at baseline, had a post-baseline ADA result, and all post-baseline samples were negative, or if they were ADA positive at baseline but did not have any post-baseline samples with a titer that was at least 4-fold greater than the titer of the baseline sample (treatment unaffected).
Day 1 of Cycles (each cycle is 28 days) 1, 2, 4, 8, 12, and 16; Day 15 of Cycle 3; at atezolizumab treatment discontinuation visit, and <90 days after last atezolizumab infusion (up to approximately 31 months)

Collaborators and Investigators

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

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)

November 23, 2017

Primary Completion (Actual)

June 25, 2020

Study Completion (Actual)

June 25, 2020

Study Registration Dates

First Submitted

August 17, 2017

First Submitted That Met QC Criteria

August 24, 2017

First Posted (Actual)

August 28, 2017

Study Record Updates

Last Update Posted (Actual)

May 11, 2021

Last Update Submitted That Met QC Criteria

April 20, 2021

Last Verified

April 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • WO39760
  • 2017-000794-37 (EudraCT Number)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

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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