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Safety and Efficacy of IMC-F106C as a Single Agent and in Combination With Checkpoint Inhibitors

Phase 1
Recruiting
Conditions
Select Advanced Solid Tumors
Interventions
Drug: Brenetafusp and chemotherapy
Drug: Brenetafusp and monoclonal antibodies and chemotherapy
Drug: Brenetafusp and bevacizumab
Drug: Brenetafusp and kinase inhibitors
Registration Number
NCT04262466
Lead Sponsor
Immunocore Ltd
Brief Summary

Brenetafusp (IMC-F106C) is an immune-mobilizing monoclonal T cell receptor against cancer (ImmTAC ®) designed for the treatment of cancers positive for the tumor-associated antigen PRAME. This is a first-in-human trial designed to evaluate the safety and efficacy of brenetafusp in adult patients who have the appropriate HLA-A2 tissue marker and whose cancer is positive for PRAME.

Detailed Description

The IMC-F106C-101 Phase 1/2 study will be evaluated in patients with metastatic/unresectable tumors which include select Advanced Solid Tumors and will be conducted in two phases.

1. Phase 1: To identify the Maximum Tolerated Dose (MTD) and/or Recommended Phase 2 dose (RP2D) of brenetafusp as a single agent and administered in combination with chemotherapies, targeted therapies, and monoclonal antibodies.

2. Phase 2: To assess the efficacy of brenetafusp in selected advanced solid tumors.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
727
Inclusion Criteria
  1. ECOG PS 0 or 1
  2. HLA-A*02:01 positive
  3. PRAME positive tumor
  4. Relapsed from, refractory to, or intolerant of standard therapies; or, in combination with standard therapies
  5. If applicable, must agree to use highly effective contraception
Exclusion Criteria
  1. Symptomatic or untreated central nervous system metastasis
  2. Recent bowel obstruction
  3. Ongoing ascites or effusion requiring recent drainages
  4. Significant immune-mediated adverse event with prior immunotherapy (patients in checkpoint inhibitor combination treatment)
  5. Inadequate washout from prior anticancer therapy
  6. Significant ongoing toxicity from prior anticancer treatment
  7. Out-of-range laboratory values
  8. Clinically significant lung, heart, or autoimmune disease
  9. Ongoing requirement for immunosuppressive treatment
  10. Prior solid organ or bone marrow transplant
  11. Active hepatitis B virus (HBV), hepatitis C virus (HCV), or human immunodeficiency virus (HIV) infection
  12. Significant secondary malignancy
  13. Hypersensitivity to study drug or excipients
  14. Antibiotics, vaccines or surgery within 2-4 weeks prior to the first dose of study intervention
  15. Pregnant or lactating
  16. Any other contraindication for applicable combination partner based on local prescribing information

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Brenetafusp and Anti-PD(L)1 AgentBrenetafusp and pembrolizumabParticipants receive brenetafusp and pembrolizumab.
Brenetafusp and ChemotherapyBrenetafusp and chemotherapyParticipants receive brenetafusp and chemotherapy. Choice of chemotherapy is dependent on cohort.
Brenetafusp and Targeted TherapyBrenetafusp and tebentafuspParticipants receive brenetafusp and a selected targeted therapy. Receipt of kinase inhibitor is dependent on histology.
Brenetafusp and Targeted TherapyBrenetafusp and bevacizumabParticipants receive brenetafusp and a selected targeted therapy. Receipt of kinase inhibitor is dependent on histology.
Brenetafusp and Targeted TherapyBrenetafusp and kinase inhibitorsParticipants receive brenetafusp and a selected targeted therapy. Receipt of kinase inhibitor is dependent on histology.
Brenetafusp and Multimodal TherapyBrenetafusp and monoclonal antibodies and chemotherapyParticipants receive brenetafusp, biologics (eg, pembrolizumab, bevacizumab) IV infusions and chemotherapy IV infusions based on histology.
Brenetafusp MonotherapyBrenetafuspParticipants receive brenetafusp.
Primary Outcome Measures
NameTimeMethod
Phase 1: Incidence of dose-limiting toxicity (DLT)sUp to ~28 days after each dose
Phase 1: Incidence of adverse events (AE) and serious adverse events (SAE)Up to 30 days after the last dose of study therapy
Phase 1: Number of participants with dose interruptions, dose reductions, or dose discontinuationsUp to ~12 months
Phase 1: Number of participants with abnormal laboratory test results (hematology)Up to 30 days after the last dose of study therapy
Phase 1: Number of participants with abnormal laboratory test results (chemistry)Up to 30 days after the last dose of study therapy
Phase 1: Number of participants with abnormal laboratory test results (coagulation)Up to 30 days after the last dose of study therapy
Phase 1: Number of participants with abnormal urinalysisUp to 30 days after the last dose of study therapy
Phase 1: Number of participants with abnormal vital signsUp to 30 days after the last dose of study therapy
Phase 1: Mean change from baseline in QTcF intervalUp to 30 days after the last dose of study therapy
Phase 2: Best overall response (BOR)Up to ~2 years
Secondary Outcome Measures
NameTimeMethod
Phase I: Best Overall Response (BOR)Up to ~2 years
Progression-free survival (PFS)Up to ~2 years
Duration of response (DOR)Up to ~2 years
Overall survivalUp to ~2 years
Area under the plasma concentration-time curve (AUC) of brenetafuspAt designated time points up to ~3 weeks
Maximum plasma drug concentration (Cmax) of brenetafuspAt designated time points up to ~3 weeks
Time to reach maximum plasma concentration (Tmax) of brenetafuspAt designated time points up to ~3 weeks
Plasma elimination half-life (t½) of brenetafuspAt designated time points up to ~3 weeks
Incidence of anti-brenetafusp antibody formationUp to ~ 2 years
Changes in lymphocyte counts over timeUp to ~3 weeks
Changes in serum cytokines over timeUp to ~3 weeks
Local tumor response based on Gynecological Cancer Intergroup (GCIG) Cancer Antigen 25 (CA-125) response criteriaUp to ~2 years

Trial Locations

Locations (76)

University of California - San Diego

🇺🇸

La Jolla, California, United States

Angeles Clinic and Research Institute

🇺🇸

Los Angeles, California, United States

University of California Davis Comprehensive Center

🇺🇸

Sacramento, California, United States

University of Colorado

🇺🇸

Aurora, Colorado, United States

Georgetown University Medical Center

🇺🇸

Washington, District of Columbia, United States

Houston Lee Moffitt Cancer Center & Research Institute

🇺🇸

Tampa, Florida, United States

The University of Chicago Medical Center

🇺🇸

Chicago, Illinois, United States

University of Iowa

🇺🇸

Iowa City, Iowa, United States

Massachusetts General Hospital

🇺🇸

Boston, Massachusetts, United States

John Theurer Cancer Center at Hackensack University Medical Center

🇺🇸

Hackensack, New Jersey, United States

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University of California - San Diego
🇺🇸La Jolla, California, United States
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