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Brief Title: GB1275 Monotherapy and in Combination With an Anti-PD1 Antibody in Patients With Specified Advanced Solid Tumors or in Combination With Standard of Care in Patients With Metastatic Pancreatic Adenocarcinoma

A Phase 1/2, First-in-Human, Open-label, Dose Escalation Study of GB1275 Monotherapy and in Combination With an Anti-PD-1 Antibody in Patients With Specified Advanced Solid Tumors or in Combination With Standard of Care in Patients With Metastatic Pancreatic Adenocarcinoma, Followed by Basket Expansion of GB1275 With Standard of Care or in Combination With an Anti-PD-1 Antibody in Patients With Specified Metastatic Solid Tumors

INTRODUCTION

  • Org Study ID: GB1275-1101 (KEYNOTE-A36)
  • Secondary ID: N/A
  • NCT ID: NCT04060342
  • Sponsor: GB006, Inc., a wholly owned subsidiary of Gossamer Bio, Inc.

BRIEF SUMMARY

This first-in-human (FIH ) study is an open-label, multicenter study that consists of a Phase 1 Dose Escalation/Expansion phase of GB1275 monotherapy or in combination with Anti-PD-1 Antibody or in combination with Standard of Care in Patients with Metastatic Pancreatic Adenocarcinoma followed by a Phase 2 Basket Expansion phase in Patients with Specified Metastatic Solid Tumors

DETAILED DESCRIPTION

Note: The Phase 2 portion of the study was not initiated.

  • Overall Status
    Terminated
  • Start Date
    August 13, 2019
  • Phase
    Phase 1
  • Study Type
    Interventional

PRIMARY OUTCOMES

Primary Outcome 1 - Measure: Phase 1 Dose Escalation - Regimens A

Primary Outcome 1 - Timeframe: Regimen A and B dose escalation Days 1-21

Primary Outcome 2 - Measure: B

Primary Outcome 2 - Timeframe: Regimen C dose escalation Days 8-36 days

Primary Outcome 3 - Measure: and C: Incidence of dose limiting toxicities (DLTs)

Primary Outcome 3 - Timeframe: Regimen A and C from first dose through 30 days post last dose

Primary Outcome 4 - Measure: Phase 1 Dose Escalation - Regimens A

Primary Outcome 4 - Timeframe: Regimen B from first dose through 90 days post last dose

Primary Outcome 5 - Measure: B

Primary Outcome 5 - Timeframe: From first dose through 30 days post last dose

Primary Outcome 6 - Measure: and C and Phase 1 Expansion - Regimen B: Incidence of adverse events (AEs)

Primary Outcome 6 - Timeframe: From first dose through 30 days post last dose

Primary Outcome 7 - Measure: Phase 1 Dose Escalation - Regimens A and B: Cmax of GB1275

Primary Outcome 7 - Timeframe: From first dose through 30 days post last dose

Primary Outcome 8 - Measure: Phase 1 Dose Escalation - Regimens A and B: Ctrough of GB1275

Primary Outcome 8 - Timeframe: From first dose through 30 days post last dose

Primary Outcome 9 - Measure: Phase 1 Dose Escalation - Regimens A and B: Tmax of GB1275

Primary Outcome 9 - Timeframe: From first dose through 30 days post last dose

Primary Outcome 10 - Measure: Phase 1 Dose Escalation - Regimens A and B: t1/2 of GB1275

Primary Outcome 10 - Timeframe: From first dose through 30 days post last dose

Primary Outcome 11 - Measure: Phase 1 Dose Escalation - Regimens A and B: AUC of GB1275

Primary Outcome 11 - Timeframe: 24 months

Primary Outcome 12 - Measure: Phase 1 Dose Escalation - Regimens A and B: CL/F of GB1275

Primary Outcome 12 - Timeframe: N/A

Primary Outcome 13 - Measure: Phase 2 - Basket Cohorts 1

Primary Outcome 13 - Timeframe: N/A

Primary Outcome 14 - Measure: 2 and 3: Objective Response Rate (ORR)

Primary Outcome 14 - Timeframe: N/A

CONDITION

  • Pancreatic Adenocarcinoma
  • Esophageal Adenocarcinoma
  • Esophageal Squamous Cell Carcinoma
  • Gastric Adenocarcinoma
  • Gastroesophageal Junction Adenocarcinoma
  • Triple Negative Breast Cancer
  • Castration-resistant Prostate Cancer
  • Microsatellite Stable Colorectal Cancer
  • Non-small Cell Lung Cancer
  • Small-cell Lung Cancer
  • Head and Neck Squamous Cell Carcinoma
  • Urothelial Carcinoma
  • Renal Cell Carcinoma
  • Hepatocellular Carcinoma

ELIGIBILITY

Inclusion Criteria:
* Subject has a performance status of 0 or 1 on the Eastern Cooperative Oncology Group (ECOG) Performance Scale.

- * Women of childbearing potential must use an acceptable method of contraception
Phase 1
Subjects with the the following:
* Regimen A and B:
* pancreatic adenocarcinoma,

- * esophageal adenocarcinoma, or esophageal squamous cell carcinoma, or

- * gastric/gastroesophageal junction adenocarcinoma, or

- * TNBC, or

- * prostate cancer, or

- * colorectal adenocarcinoma, or subjects with tumor types that have progressed after receiving initial treatment benefit rom the last single agent checkpoint inhibitor that is approved for the indication or in combination with standard of care therapy, for example, non-small cell lung cancer, small cell lung cancer, head and neck squamous cell carcinoma, urothelial carcinoma, renal cell carcinoma, and hepatocellular carcinoma, etc.

- * Regimen C: newly diagnosed stage IV pancreatic cancer
Phase 2
* Cohort 1: pancreatic cancer.

- * Cohort 2: colorectal cancer

- * Cohort 3: gastric/GEJ adenocarcinoma
Exclusion Criteria:
* History of another malignancy within 2 years prior to first study drug(s) administration, unless the malignancy was treated with curative intent and the likelihood of relapse is <5% in 2 years - * Pregnant or nursing - * Known history of testing positive for human immunodeficiency virus (HIV) - * Gastrointestinal (GI) tract disease causing the inability to take oral medication. - * Positive test for Hepatitis B virus surface antigen (HBsAg) or a and/or positive Hep C antibody result with detectable hepatitis C virus (HCV) ribonucleic acid (RNA) indicating acute or chronic infection.
Other protocol-defined inclusion/exclusion criteria will apply

Gender: All

Minimum Age: 18 Years

Maximum Age: N/A

Healthy Volunteers: No

OFFICIAL INFORMATION

Name: N/A

Role: N/A

Affiliation: N/A

Overall Contact

Name: N/A

Phone: N/A

Email: N/A

LOCATION

Facility Status Contact