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A Study of GDC-0919 and Atezolizumab Combination Treatment in Participants With Locally Advanced or Metastatic Solid Tumors

Phase 1
Completed
Conditions
Solid Tumor
Interventions
Registration Number
NCT02471846
Lead Sponsor
Genentech, Inc.
Brief Summary

This study will evaluate the safety, tolerability, and pharmacokinetics of the combination of GDC-0919 and atezolizumab in participants with locally advanced, recurrent, or metastatic incurable solid malignancy that has progressed after available standard therapy or for which standard therapy is ineffective, intolerable, or inappropriate. Participants will be enrolled in two stages, including a dose-escalation stage and an expansion stage.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
158
Inclusion Criteria
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  • Life expectancy at least 12 weeks
  • Adequate hematologic and end organ function
  • Negative pregnancy test and willingness to utilize contraception among women of childbearing potential
  • Locally advanced, recurrent, or metastatic incurable solid malignancy with measurable disease per RECIST v1.1
  • Progression following at least one standard therapy; or standard therapy considered ineffective, intolerable, or inappropriate; or use of an investigational agent recognized as a standard of care
  • For the expansion stage, histologically confirmed renal cell cancer (RCC), urothelial bladder cancer (UBC), triple-negative breast cancer (TNBC), non-small cell lung cancer (NSCLC), melanoma, head and neck squamous cell carcinoma (HNSCC), gastric cancer, ovarian cancer, cervical cancer, endometrial cancer, or Merkel cell cancer
  • For the expansion stage, evaluable for PD-L1 expression
  • Anti PD-1/PD-L1 relapsed cohorts (I and II), participants whose most recent anti-cancer therapy consisted of single-agent PD-1/PD-L1 blockade will be enrolled
Exclusion Criteria
  • Significant cardiovascular or liver disease
  • Major surgery within 28 days of study drug
  • Any anti-cancer therapy within 3 weeks of study drug
  • Malabsorption syndrome or poor upper gastrointestinal integrity
  • Primary central nervous system (CNS) malignancy or active metastases within 5 years
  • Uncontrolled tumor pain
  • Autoimmune disease other than stable hypothyroidism or vitiligo
  • Human immunodeficiency virus (HIV), active hepatitis B or C, or tuberculosis
  • Signs/symptoms of infection, or use of antibiotics within 2 weeks of study drug
  • Live attenuated vaccine within 4 weeks of study drug
  • Known history or predisposition to QT interval prolongation
  • Prior cancer immunotherapy, specifically indoleamine 2,3-dioxygenase (IDO) or tryptophan 2,3-dioxygenase (TDO) inhibitors, T-cell costimulatory receptor agonist antibodies, or checkpoint inhibitors among certain participants

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Anti-PD-1/PD-L1 Relapsed Cohort IIAtezolizumabApproximately 20 participants whose most recent anti-cancer therapy consisted of single-agent PD-1/PD-L1 blockade and achieved unconfirmed partial response or stable disease will receive GDC-0919, at the MTD or MAD determined during the dose-escalation stage, in combination with atezolizumab. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio.
Biopsy Cohort BAtezolizumabApproximately 20 participants with melanoma, HNSCC, gastric, ovarian, Merkel cell, cervical, or endometrial cancer will receive atezolizumab during Cycle 1, followed by combination treatment with GDC-0919 and atezolizumab from Cycle 2 onwards. Serial biopsies of extrahepatic lesions will be performed. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio.
Anti-PD-1/PD-L1 Relapsed Cohort IGDC-0919Approximately 20 participants whose most recent anti-cancer therapy consisted of single-agent programmed death-1 (PD-1)/programmed death-ligand 1 (PD-L1) blockade and achieved best response of confirmed complete or partial response, or stable disease will receive GDC-0919, at the MTD or maximum administered dose (MAD) determined during the dose-escalation stage, in combination with atezolizumab. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio.
Anti-PD-1/PD-L1 Relapsed Cohort IIGDC-0919Approximately 20 participants whose most recent anti-cancer therapy consisted of single-agent PD-1/PD-L1 blockade and achieved unconfirmed partial response or stable disease will receive GDC-0919, at the MTD or MAD determined during the dose-escalation stage, in combination with atezolizumab. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio.
Biopsy Cohort BGDC-0919Approximately 20 participants with melanoma, HNSCC, gastric, ovarian, Merkel cell, cervical, or endometrial cancer will receive atezolizumab during Cycle 1, followed by combination treatment with GDC-0919 and atezolizumab from Cycle 2 onwards. Serial biopsies of extrahepatic lesions will be performed. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio.
Expansion CohortsGDC-0919Approximately 160 participants (40 per diagnosis) with NSCLC, RCC, TNBC, and UBC will receive GDC-0919, at the MTD or MAD determined during the dose-escalation stage, in combination with Atezolizumab. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio.
Dose-Escalation Cohort(s)GDC-0919Approximately 6 to 65 participants will be enrolled and treated at escalating doses of GDC-0919 in combination with fixed-dose atezolizumab. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio. Successive groups of at least 3 participants will be evaluated during a 21-day window for DLTs, which will determine the enrollment and dosing for subsequent cohorts in the dose-escalation stage. The MTD or MAD, whichever is reached first, will be considered for the expansion stage.
Biopsy Cohort AGDC-0919Approximately 20 participants with melanoma, HNSCC, gastric, ovarian, Merkel cell, cervical, or endometrial cancer will receive GDC-0919 during Cycle 1, followed by combination treatment with GDC-0919 and atezolizumab from Cycle 2 onwards. Serial biopsies of extrahepatic lesions will be performed. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio.
Anti-PD-1/PD-L1 Relapsed Cohort IAtezolizumabApproximately 20 participants whose most recent anti-cancer therapy consisted of single-agent programmed death-1 (PD-1)/programmed death-ligand 1 (PD-L1) blockade and achieved best response of confirmed complete or partial response, or stable disease will receive GDC-0919, at the MTD or maximum administered dose (MAD) determined during the dose-escalation stage, in combination with atezolizumab. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio.
Biopsy Cohort AAtezolizumabApproximately 20 participants with melanoma, HNSCC, gastric, ovarian, Merkel cell, cervical, or endometrial cancer will receive GDC-0919 during Cycle 1, followed by combination treatment with GDC-0919 and atezolizumab from Cycle 2 onwards. Serial biopsies of extrahepatic lesions will be performed. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio.
Expansion CohortsAtezolizumabApproximately 160 participants (40 per diagnosis) with NSCLC, RCC, TNBC, and UBC will receive GDC-0919, at the MTD or MAD determined during the dose-escalation stage, in combination with Atezolizumab. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio.
Dose-Escalation Cohort(s)AtezolizumabApproximately 6 to 65 participants will be enrolled and treated at escalating doses of GDC-0919 in combination with fixed-dose atezolizumab. Treatment may continue until unacceptable toxicity or disease progression with an unfavorable risk-benefit ratio. Successive groups of at least 3 participants will be evaluated during a 21-day window for DLTs, which will determine the enrollment and dosing for subsequent cohorts in the dose-escalation stage. The MTD or MAD, whichever is reached first, will be considered for the expansion stage.
Primary Outcome Measures
NameTimeMethod
Percentage of Participants With Dose-limiting Toxicities (DLTs)From Day -1 to 21 of Cycle 1 (each cycle is 21 days)
Percentage of Participants With Adverse EventsFrom Screening until new anti-cancer therapy or up to 60 days after last dose (up to approximately 3 years)
Secondary Outcome Measures
NameTimeMethod
Number of Treatment Cycles Received With GDC-0919 and AtezolizumabFrom Day -1 of Cycle 1 (each cycle is 21 days) until treatment discontinuation (up to approximately 3 years)
Recommended Phase II Dose (RP2D) for GDC-0919From Day -1 to 21 of Cycle 1 (each cycle is 21 days)
Dose Intensity of GDC-0919 and AtezolizumabFrom Day -1 of Cycle 1 (each cycle is 21 days) until treatment discontinuation (up to approximately 3 years)
Plasma Minimum Concentration (Cmin) of GDC-0919Pre-dose from Day -1 of Cycle 1 (each cycle is 21 days) through Day 1 of Cycle 8
Time to Maximum Concentration (Tmax) of GDC-0919Post-dose on Day -1 of Cycle 1 (each cycle is 21 days) and Day 1 of Cycle 2
Serum Cmax of AtezolizumabPost-dose from Day 1 of Cycle 1 (each cycle is 21 days) up to 120 days after last dose of atezolizumab (up to approximately 3 years)
Maximum Tolerated Dose (MTD) of GDC-0919From Day -1 to 21 of Cycle 1 (each cycle is 21 days)
Duration of Objective Response According to RECIST v1.1 as Determined by the InvestigatorFrom Screening until disease progression, death, new anti-cancer therapy, or premature study withdrawal (up to approximately 3 years)
Percentage of Participants With Objective Response According to Modified RECIST as Determined by the SponsorFrom Screening until disease progression, death, new anti-cancer therapy, or premature study withdrawal (up to approximately 3 years)
Percentage of Participants With Objective Response According to Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) as Determined by the InvestigatorFrom Screening until disease progression, death, new anti-cancer therapy, or premature study withdrawal (up to approximately 3 years)
Percentage of Participants With Anti-therapeutic Antibody (ATA) Response to AtezolizumabPre-dose from Day 1 of Cycle 1 (each cycle is 21 days) up to 120 days after last dose of atezolizumab (up to approximately 3 years)
Plasma Maximum Concentration (Cmax) of GDC-0919Post-dose on Day -1 of Cycle 1 (each cycle is 21 days) and Day 1 of Cycle 2
Area Under the Concentration-time Curve to the Last Measurable Concentration (AUC0-last) of GDC-0919Pre-dose and post-dose from Day -1 of Cycle 1 (each cycle is 21 days) through Day 1 of Cycle 8
Serum Cmin of AtezolizumabPre-dose from Day 1 of Cycle 1 up to 120 days after last dose of atezolizumab (up to approximately 3 years)
Duration of Objective Response According to Modified RECIST as Determined by the SponsorFrom Screening until disease progression, death, new anti-cancer therapy, or premature study withdrawal (up to approximately 3 years)

Trial Locations

Locations (18)

HonorHealth Research Institute - Bisgrove

🇺🇸

Scottsdale, Arizona, United States

Yale Cancer Center

🇺🇸

New Haven, Connecticut, United States

Memorial Sloan Kettering Cancer Center

🇺🇸

New York, New York, United States

Hopital Nord AP-HM

🇫🇷

Marseille, France

Institut Gustave Roussy

🇫🇷

Villejuif, France

Seoul National University Hospital

🇰🇷

Seoul, Korea, Republic of

Asan Medical Center - Oncology

🇰🇷

Seoul, Korea, Republic of

Samsung Medical Center

🇰🇷

Seoul, Korea, Republic of

Hospital Universitari Vall d'Hebron

🇪🇸

Barcelona, Spain

Hospital Universitario HM Sanchinarro-CIOCC

🇪🇸

Madrid, Spain

Hospital Clinico Universitario de Valencia

🇪🇸

Valencia, Spain

The Angeles Clinic and Research Institute, Santa Monica Office

🇺🇸

Santa Monica, California, United States

Johns Hopkins Sidney Kimmel Comprehensive Cancer Center

🇺🇸

Baltimore, Maryland, United States

Beth Israel Deaconess Medical Center

🇺🇸

Boston, Massachusetts, United States

Dana Farber Cancer Institute

🇺🇸

Boston, Massachusetts, United States

Sarah Cannon Research Institute

🇺🇸

Nashville, Tennessee, United States

H. Lee Moffitt Cancer Center and Research Inst.

🇺🇸

Tampa, Florida, United States

University of Colorado

🇺🇸

Aurora, Colorado, United States

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