A Study to Evaluate the Safety and Therapeutic Activity of GI-102 As a Single Agent and in Combination with Conventional Anti-cancer Drugs, Pembrolizumab or Trastuzumab Deruxtecan(T-DXd) in Patients with Advanced Solid Tumors (KEYNOTE-G08)
NCT05824975 · Phase 1, Phase 2 · Scottsdale, Arizona, United States
- Condition
- Sarcoma
- Disease stage
- Stage I-IV
- Phase
- Phase 1, Phase 2
- Study type
- DRUG
- Intervention
- GI-102 subcutaneous (SC), GI-102, doxorubicin, paclitaxel, bevacizumab, eribulin, trastuzumab deruxtecan (T-DXd), pembrolizumab, GI-102
- Age
- 18 Years to
- Gender
- All
- Sponsor
- GI Innovation, Inc.
- Research institution
- GI Innovation, Inc.
- Facility
- Mayo Clinic in Arizona
- Research center
- Mayo Clinic in Arizona
Summary
The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics, and therapeutic activity of GI-102 as a single agent and in combination with conventional anti-cancer drugs, pembrolizumab or trastuzumab deruxtecan(T-DXd) over a range of advanced and/or metastatic solid tumors.
Detailed description
This is a phase 1/2, open-label, dose-escalation and expansion study to evaluate the safety, tolerability, and anti-tumor effect of GI-102 as a single agent and in combination with conventional anti-cancer drugs, pembrolizumab or trastuzumab deruxtecan(T-DXd) over a range of advanced and/or metastatic solid tumors. This study is adaptive in nature. The study is composed of four parts: * Part A: Dose escalation and optimization phase of GI-102 intravenous (IV) monotherapy * Part A dose escalation phase * Part A dose optimization phase: Dose optimization cohorts in patients with 2L+, CPI-refractory metastatic melanoma * Part B: Dose escalation and expansion phase of GI-102 subcutaneous (SC) monotherapy * Part C: Indication specific cohorts of GI-102 IV in combination with conventional anti-cancer drugs or trastuzumab deruxtecan (T-DXd) * Part D: Indication specific cohorts of GI-102 IV in combination with pembrolizumab GI-102 is a novel bi-specific Fc fusion protein containing the CD80 ectodomain as an N-terminal moiety and an interleukin (IL)-2 variant as a C-terminal moiety configurated via a human immunoglobulin G4 (IgG4) Fc. GI-102 has unique characteristics by having bispecificity to CD80 and IL2Rβγ. The CD80 portion is responsible for targeting tumor/immune cells while blocking CTLA-4 expressed on the Treg cells. The IL-2v of GI-102 is designed to abolish IL-2Rα affinity and therefore minimize the effect on Treg while it has very outstanding effect on NK and CD8 T cell proliferation and activity through IL-2Rbr affinity.
Inclusion criteria
Key * Males and females aged ≥ 18 years (or ≥ 19 years according to local regulatory guidelines) at the time of screening. * Has adequate organ and marrow function as defined in protocol. * Measurable disease as per RECIST v1.1. * ECOG performance status 0-1. * Adverse events related to any prior chemotherapy, radiotherapy, immunotherapy, other prior systemic anti-cancer therapy, or surgery must have resolved to Grade ≤1, except alopecia and Grade 2 peripheral neuropathy. * HIV infected patients must be on anti-retroviral therapy (ART) and have a well-controlled HIV infection/disease as defined in protocol. Key
Exclusion criteria
* Has known active CNS metastases and/or carcinomatous meningitis. * An active second malignancy. * Has active or a known history of Hepatitis B or known active Hepatitis C virus infection. * Has active tuberculosis or has a known history of active tuberculosis. * Active or uncontrolled infections, or severe infection within 4 weeks before study treatment administration. * History of chronic liver disease or evidence of hepatic cirrhosis, except patients with liver metastasis. * Has an active autoimmune disease that has required systemic treatment in past 2 years. * Previous immunotherapies related to mode of action of GI-102. * Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy or any other form of immunosuppressive medications within 2 weeks prior to Cycle 1 Day 1. * Administration of prior systemic anti-cancer therapy including investigational agents within 4 weeks prior to treatment. * Radiotherapy within the last 2 weeks before start of study treatment administration, with exception of limited field palliative radiotherapy. * Administration of a live, attenuated vaccine within 4 weeks before Cycle 1 Day 1. * Known hypersensitivity to any of the components of the drug products and/or excipients of GI-102. Other protocol defined inclusion exclusion criteria may apply
Primary outcomes
Incidence and nature of Dose-Limiting Toxicity (DLTs) (dose escalation phase of Part A and B); Incidence, nature, and severity of adverse events (AEs) and immune-related AEs (irAEs) (dose escalation phase of Part A and B); Objective Response Rate (ORR) (dose optimization phase of Part A, dose expansion phase of Part B, Part C and D)
Secondary outcomes
Objective Response Rate (ORR) (dose escalation phase of Part A and B); Incidence and nature of Dose-Limiting Toxicity (DLTs) (dose optimization phase of Part A, dose expansion phase of Part B, Part C and D); Incidence, nature, and severity of adverse events (AEs) and immune-related AEs (irAEs) (dose optimization phase of Part A, dose expansion phase of Part B, Part C and D)