ClinicalTrials.gg
CompletedNCT03264066Updated May 11, 2021Results posted

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

A Phase 2 interventional study of Cobimetinib and Atezolizumab in Solid Tumors, sponsored by Hoffmann-La Roche. Completed at 19 sites in 6 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-05-11.

Sponsored by Hoffmann-La Roche · Phase 2, Interventional, and Treatment

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Phase
Phase 2
Study type
Interventional
Enrollment
87
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

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).

02

Conditions studied

  • Solid Tumors
03

In context

Lead sponsor

Hoffmann-La Roche is the lead sponsor of 2,101 studies on the registry; 88 are open to participants now.

Of its 330 completed or terminated interventional studies of FDA-regulated products, 248 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

General Inclusion Criteria:

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

Cancer-Related Inclusion Criteria:

  • Patients must have by computed tomography (CT) or magnetic resonance imaging (MRI) scan per v1.1.
  • Availability to provide a representative tumor specimen
  • Evidence of tumor progression on or after the last treatment regimen received and within 6 months prior to study enrollment
  • For women of : agreement to remain abstinent (refrain from heterosexual intercourse) or use a non-hormonal 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

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-PD-1, and anti-PD-L1 therapeutic antibodies
  • Treatment with 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 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 [ULN]) or symptomatic hypercalcemia requiring continued use of bisphosphonate therapy
  • Active or untreated central nervous system (CNS)
  • 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:

  • (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 (HIV) test at screening
  • Active virus (HBV) infection (chronic or acute)
  • Active 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
Terms in these criteria, in plain language(16)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
87 participants (actual)

Study arms

  • 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.

    Drug: Cobimetinib · Drug: Atezolizumab

  • 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.

    Drug: Cobimetinib · Drug: Atezolizumab

  • 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.

    Drug: Cobimetinib · Drug: Atezolizumab

  • 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.

    Drug: Cobimetinib · Drug: Atezolizumab

  • 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.

    Drug: Cobimetinib · Drug: Atezolizumab

  • 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.

    Drug: Cobimetinib · Drug: Atezolizumab

  • 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.

    Drug: Cobimetinib · Drug: Atezolizumab Cohort 7

Interventions

  • 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.

    Also known as: 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.

    Also known as: Tecentriq

  • 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.

    Also known as: Tecentriq

06

What researchers measure

Primary outcomes

  1. Objective Response Rate (ORR)

    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.

    Time frame: Up to approximately 31 months

Secondary outcomes

  1. Overall Survival (OS)

    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.

    Time frame: Up to approximately 31 months

  2. Progression-Free Survival (PFS)

    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.

    Time frame: Up to approximately 31 months

  3. Duration of Response (DOR)

    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.

    Time frame: Up to approximately 22 months

  4. Disease Control Rate (DCR)

    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.

    Time frame: At 16 weeks

  5. Number of Participants With Adverse Events

    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.

    Time frame: Up to approximately 31 months

  6. Maximum Plasma Concentration (Cmax) of Cobimetinib

    Cmax is the maximum (or peak) concentration that a study drug achieves in the body.

    Time frame: Day 15 of Cycle 3 (cycle is 28 days): 2-4 hours after cobimetinib dose

  7. Minimum Plasma Concentration (Cmin) of Cobimetinib

    Cmin is the minimum (or trough) concentration that a study drug achieves in the body.

    Time frame: Day 15 of Cycle 3 (cycle is 28 days): prior to cobimetinib dose

  8. Maximum Serum Concentration (Cmax) of Atezolizumab

    Cmax is the maximum (or peak) concentration that a study drug achieves in the body.

    Time frame: 30 minutes following end of atezolizumab infusion on Day 15 of Cycle 3 (each cycle is 28 days)

  9. Minimum Serum Concentration (Cmin) of Atezolizumab

    Cmin is the minimum (or trough) concentration that a study drug achieves in the body.

    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

  10. Number of Participants With Anti-drug Antibodies (ADAs)

    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).

    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)

07

Results

Posted Mar 1, 2021

Participant flow

Enrollment took place in six countries: Republic of Korea, Belgium, Germany, United Kingdom, Hungary and United States. No participants were enrolled in Cohort 7. Participants in long term follow up and who continued to receive treatment(s) in a post-trial access program are designated in Participant Flow as "Study terminated by Sponsor".

Participant flow — Overall Study
MilestoneCohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment Exposure
Started2020172073
Completed000000
Not completed2020172073
Withdrew: Adverse event110000
Withdrew: Death121281061
Withdrew: Lost to follow-up100000
Withdrew: Progressive disease021000
Withdrew: Study terminated by sponsor558512
Withdrew: Withdrawal by subject100500

Outcome measures

PrimaryObjective Response Rate (ORR)

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.

Time frame:
Up to approximately 31 months
Reported as:
Number · percentage of participants
Objective Response Rate (ORR)
percentage of participantsCohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment Exposure
Objective Response Rate (ORR)20.0 (0.00 to 40.03)30.0 (7.42 to 52.58)17.6 (0.00 to 38.71)0 (0.00 to 2.50)0 (0.00 to 7.14)0 (0.00 to 16.67)
SecondaryOverall Survival (OS)

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.

Time frame:
Up to approximately 31 months
Reported as:
Median · months
Overall Survival (OS)
monthsCohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment Exposure
Overall Survival (OS)16.8 (6.9 to 25.8)18.7 (11.0 to 26.2)21.7 (17.4 to NA)7.7 (4.0 to NA)5.9 (3.1 to 12.5)NA (5.9 to NA)
SecondaryProgression-Free Survival (PFS)

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.

Time frame:
Up to approximately 31 months
Reported as:
Median · months
Progression-Free Survival (PFS)
monthsCohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment Exposure
Progression-Free Survival (PFS)5.5 (2 to 26)3.4 (2 to 26)3.4 (1 to 28)3.6 (0 to 9)2.1 (1 to 4)2.7 (1 to 4)
SecondaryDuration of Response (DOR)

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.

Time frame:
Up to approximately 22 months
Reported as:
Median · days
Duration of Response (DOR)
daysCohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment Exposure
Duration of Response (DOR)NA (NA to NA)149.0 (125.0 to 173.0)NA (NA to NA)———
SecondaryDisease Control Rate (DCR)

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.

Time frame:
At 16 weeks
Reported as:
Number · percentage of participants
Disease Control Rate (DCR)
percentage of participantsCohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment Exposure
Disease Control Rate (DCR)50.0 (25.59 to 74.41)40.0 (16.03 to 63.97)23.5 (0.42 to 46.63)25.0 (3.52 to 46.48)0 (0.00 to 7.14)0 (0.00 to 16.67)
SecondaryNumber of Participants With Adverse Events

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.

Time frame:
Up to approximately 31 months
Reported as:
Number · participants
Number of Participants With Adverse Events
participantsCohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment Exposure
Number of Participants With Adverse Events2019172073
SecondaryMaximum Plasma Concentration (Cmax) of Cobimetinib

Cmax is the maximum (or peak) concentration that a study drug achieves in the body.

Time frame:
Day 15 of Cycle 3 (cycle is 28 days): 2-4 hours after cobimetinib dose
Reported as:
Geometric mean · nanogram per milliliter (ng/mL)
Maximum Plasma Concentration (Cmax) of Cobimetinib
nanogram per milliliter (ng/mL)Cohorts 1-6
Maximum Plasma Concentration (Cmax) of Cobimetinib285 ± 56.5
SecondaryMinimum Plasma Concentration (Cmin) of Cobimetinib

Cmin is the minimum (or trough) concentration that a study drug achieves in the body.

Time frame:
Day 15 of Cycle 3 (cycle is 28 days): prior to cobimetinib dose
Reported as:
Geometric mean · ng/mL
Minimum Plasma Concentration (Cmin) of Cobimetinib
ng/mLCohorts 1-6
Minimum Plasma Concentration (Cmin) of Cobimetinib174 ± 152
SecondaryMaximum Serum Concentration (Cmax) of Atezolizumab

Cmax is the maximum (or peak) concentration that a study drug achieves in the body.

Time frame:
30 minutes following end of atezolizumab infusion on Day 15 of Cycle 3 (each cycle is 28 days)
Reported as:
Geometric mean · ng/mL
Maximum Serum Concentration (Cmax) of Atezolizumab
ng/mLCohorts 1-6
Maximum Serum Concentration (Cmax) of Atezolizumab417000 ± 50.2
SecondaryMinimum Serum Concentration (Cmin) of Atezolizumab

Cmin is the minimum (or trough) concentration that a study drug achieves in the body.

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
Reported as:
Geometric mean · ng/mL
Minimum Serum Concentration (Cmin) of Atezolizumab
ng/mLCohorts 1-6
Minimum Serum Concentration (Cmin) of Atezolizumab112000 ± 219
SecondaryNumber of Participants With Anti-drug Antibodies (ADAs)

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).

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)
Reported as:
Count of participants · Participants
Number of Participants With Anti-drug Antibodies (ADAs)
ParticipantsCohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment Exposure
Number of Participants With Anti-drug Antibodies (ADAs)1106502

Adverse events

Collected over Up to approximately 31 months. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Cohort 1 - SCCHN - Treatment Naive12/20 (60%)13/20 (65%)20/20 (100%)
Cohort 2 - UC - Treatment Naive12/19 (63.2%)9/19 (47.4%)19/19 (100%)
Cohort 3 - RCC - Treatment Naive8/17 (47.1%)8/17 (47.1%)17/17 (100%)
Cohort 4 - SCCHN - Previous Treatment Exposure12/20 (60%)10/20 (50%)19/20 (95%)
Cohort 5 - UC - Previous Treatment Exposure6/7 (85.7%)4/7 (57.1%)7/7 (100%)
Cohort 6 - RCC - Previous Treatment Exposure1/3 (33.3%)1/3 (33.3%)3/3 (100%)
Most frequent serious events
Showing 10 of 54
Most frequent serious events
EventCohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment Exposure
DIARRHOEAGastrointestinal disorders0/200/192/170/201/71/3
NAUSEAGastrointestinal disorders0/200/190/170/200/71/3
ASTHENIAGeneral disorders0/200/190/170/200/71/3
CHILLSGeneral disorders0/200/190/170/200/71/3
FATIGUEGeneral disorders0/200/190/170/200/71/3
PYREXIAGeneral disorders0/200/190/171/200/71/3
PHARYNGITIS STREPTOCOCCALInfections and infestations0/200/190/170/200/71/3
PULMONARY EMBOLISMRespiratory, thoracic and mediastinal disorders0/201/190/170/200/71/3
PNEUMONIAInfections and infestations3/202/192/172/200/70/3
IMMUNE-MEDIATED HEPATITISHepatobiliary disorders0/200/190/170/201/70/3
Most frequent other events
Showing 10 of 271
Most frequent other events
EventCohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment Exposure
DIARRHOEAGastrointestinal disorders7/2011/199/1713/205/72/3
FATIGUEGeneral disorders6/209/195/175/205/70/3
RASHSkin and subcutaneous tissue disorders9/209/1912/175/205/71/3
NAUSEAGastrointestinal disorders6/203/195/176/204/70/3
PYREXIAGeneral disorders2/207/195/171/204/70/3
URINARY TRACT INFECTIONInfections and infestations0/204/192/170/204/70/3
BLOOD CREATINE PHOSPHOKINASE INCREASEDInvestigations4/207/193/171/203/70/3
DYSURIARenal and urinary disorders0/202/190/170/203/70/3
PRURITUSSkin and subcutaneous tissue disorders2/203/191/174/203/70/3
ANAEMIABlood and lymphatic system disorders8/206/194/172/201/70/3

Baseline characteristics

The intent-to-treat (ITT) population included all participants enrolled in the study.

Age, Customized
Age, Customized(Participants)Cohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment ExposureTotal
Adults (18-64 years)12610123144
From 65-84 years813784242
Missing0100001
Sex: Female, Male
Sex: Female, Male(Participants)Cohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment ExposureTotal
Female28612221
Male181211195166
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Cohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment ExposureTotal
Hispanic or Latino0000011
Not Hispanic or Latino152017197280
Unknown or Not Reported5001006
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Cohort 1 - SCCHN - Treatment NaiveCohort 2 - UC - Treatment NaiveCohort 3 - RCC - Treatment NaiveCohort 4 - SCCHN - Previous Treatment ExposureCohort 5 - UC - Previous Treatment ExposureCohort 6 - RCC - Previous Treatment ExposureTotal
American Indian or Alaska Native0000000
Asian2101002024
Native Hawaiian or Other Pacific Islander0000000
Black or African American0000000
White18107205363
More than one race0000000
Unknown or Not Reported0000000
08

Study locations

19 sites
  • Georgetown University Medical Center
    Washington, District of Columbia 20007, United States
  • Kansas City - Menorah Medical Center
    Kansas City, Kansas 66209, United States
  • Memorial Sloan-Kettering Cancer Center
    Commack, New York 11725, United States
  • Memorial Sloan Kettering - Basking Ridge
    New York, New York 10065, United States
  • Memorial Sloan Kettering Cancer Center
    New York, New York 10065, United States
  • Sarah Cannon Research Institute
    Nashville, Tennessee 37203, United States
  • AZ Groeninge
    Kortrijk, 8500, Belgium
  • Universitatsklinik Heidelberg; Universitätshautklinik und Nationales Centrum für Tumorerkrankungen
    Heidelberg, 69120, Germany
  • Universitätsklinikum Tübingen; Klinik für Urologie
    Tübingen, 72076, Germany
  • Orszagos Onkologiai Intezet
    Budapest, 1122, Hungary
  • Debreceni Egyetem Klinikai Kozpont
    Debrecen, 4032, Hungary
  • Jósa András Oktatókórház
    Nyíregyháza, 4400, Hungary
  • Samsung Medical Center
    Seoul, (0)6351, Korea, Republic of
  • Seoul National University Hospital
    Seoul, 03080, Korea, Republic of
  • Asan Medical Center
    Seoul, 05505, Korea, Republic of
  • Yonsei Cancer Center
    Seoul, 120-752, Korea, Republic of
  • Barts & London School of Med; Medical Oncology
    London, EC1A 7BE, United Kingdom
  • Royal Marsden Hospital - Fulham
    London, SW3 6JJ, United Kingdom
  • The Royal Marsden
    London, SW7 3RP, United Kingdom
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Nov 2017 to primary completion in Jun 2020, 31 months.

Results were first posted in Mar 2021, 8 months after primary completion. A results delay was requested in Jun 2020.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 17, 2017
First posted
Aug 28, 2017
StartActual
Nov 23, 2017
Primary completionActual
Jun 25, 2020
CompletionActual
Jun 25, 2020
Results delay requested
Jun 16, 2020
Results first posted
Mar 1, 2021
Last update
May 11, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 11, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03264066
Lead sponsor
Hoffmann-La Roche
Responsible party
Sponsor
First posted
Aug 28, 2017
Start date
Nov 23, 2017
Primary completion
Jun 25, 2020
Completion
Jun 25, 2020
Results posted
Mar 1, 2021
Last update
May 11, 2021

Study contacts

Clinical Trials
study director · Hoffmann-La Roche

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Cobimetinib · Atezolizumab

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