MedPath

IMC-F106C Regimen Versus Nivolumab Regimens in Previously Untreated Advanced Melanoma (PRISM-MEL-301)

Phase 3
Recruiting
Conditions
Advanced Melanoma
Interventions
Registration Number
NCT06112314
Lead Sponsor
Immunocore Ltd
Brief Summary

This is a phase 3, randomized, controlled study of brenetafusp (IMC-F106C) plus nivolumab compared to standard nivolumab regimens in HLA-A\*02:01-positive participants with previously untreated advanced melanoma.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
680
Inclusion Criteria
  • Participants must be HLA-A*02:01-positive
  • Participants must have histologically confirmed Stage IV or unresectable Stage III melanoma
  • Archived or fresh tumor tissue sample that must be confirmed as adequate
  • Participants must have measurable disease per RECIST 1.1
  • Participant must have BRAF V600 mutation status determined
  • Participants must have an Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1
  • Male and female participants of childbearing potential who are sexually active with a non-sterilized partner must agree to use highly effective methods of birth control from the study screening date until 5 months after the final dose of study intervention
Exclusion Criteria
  • Participants with a history of a malignant disease other than those being treated in this study
  • Participants with untreated, active, or symptomatic central nervous system (CNS) metastases or carcinomatous meningitis
  • Hypersensitivity to IMC-F106C, nivolumab, relatlimab, or any associated excipients
  • Participants with clinically significant pulmonary disease or impaired lung function
  • Participants with clinically significant cardiac disease or impaired cardiac function
  • Participants with active autoimmune disease requiring immunosuppressive treatment
  • Participants with any medical condition that is poorly controlled or that would, in the Investigator's or Sponsor's judgment, adversely impact the participant's participation in the clinical study due to safety concerns, compliance with clinical study procedures, or interpretation of study results
  • Participants who received prior systemic anticancer therapy for unresectable or metastatic melanoma
  • Participants with a history of a life-threatening AE related to prior anti-PD-(L)1 or anti-LAG-3

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Arm A: Brenetafusp Low Dose + NivolumabBrenetafuspParticipants receive brenetafusp Low Dose once weekly (QW) for the first 13 weeks, then every 2 weeks (Q2W) through Week 51, and then every 4 weeks (Q4W). Nivolumab is given Q4W.
Arm A: Brenetafusp Low Dose + NivolumabNivolumabParticipants receive brenetafusp Low Dose once weekly (QW) for the first 13 weeks, then every 2 weeks (Q2W) through Week 51, and then every 4 weeks (Q4W). Nivolumab is given Q4W.
Arm B: Brenetafusp High Dose + NivolumabBrenetafuspParticipants receive brenetafusp High Dose once weekly (QW) for the first 13 weeks, then every 2 weeks (Q2W) through Week 51, and then every 4 weeks (Q4W). Nivolumab is given Q4W.
Arm B: Brenetafusp High Dose + NivolumabNivolumabParticipants receive brenetafusp High Dose once weekly (QW) for the first 13 weeks, then every 2 weeks (Q2W) through Week 51, and then every 4 weeks (Q4W). Nivolumab is given Q4W.
Arm C: Nivolumab OR Nivolumab + RelatlimabNivolumabParticipants receive nivolumab 480 mg monotherapy, or nivolumab 480 mg + relatlimab 160 mg, Q4W.
Arm C: Nivolumab OR Nivolumab + RelatlimabNivolumab + RelatlimabParticipants receive nivolumab 480 mg monotherapy, or nivolumab 480 mg + relatlimab 160 mg, Q4W.
Primary Outcome Measures
NameTimeMethod
Progression-Free Survival (PFS)Up to ~45 months

PFS as assessed by blinded independent central review (BICR) according to Response Evaluation Criteria in Solid Tumours (RECIST 1.1).

Secondary Outcome Measures
NameTimeMethod
Maximum Plasma Concentration (Cmax) of IMC-F106CDay 1 of Weeks 1, 2, and 3: Predose and 0.5 and 4 hours postdose

The Cmax of IMC-F106C will be reported.

Incidence of anti-IMC-F106C AntibodiesUp to ~45 months

The incidence of anti-IMC-F106C antibodies, including neutralizing antibodies, will be reported.

Association between PFS and Intra-Tumor Immune CellsUp to ~45 months

The potential association between the effect of IMC-F106C on efficacy and intra-tumor environment will be explored. Intra-tumor environment is estimated as the ratio of CD3+ to CD163+ cells and the correlation with PFS will be estimated by the hazard ratio (+/- 95% CI) from a Cox model. This analysis will be restricted to subjects randomized to receive IMC-F106C.

Health-Related Quality of LifeUp to ~45 months

The change from baseline over time and between treatments of health-related quality of life will be reported.

Overall Response Rate (ORR)Up to ~45 months

ORR as assessed by BICR according to RECIST 1.1.

Number of Participants Experiencing ≥1 Adverse Event (AE)Up to ~57 months

An AE is defined as the appearance of (or worsening of any pre-existing) undesirable sign, symptom, or medical condition that occur in the study.

Number of Participants Experiencing ≥1 Serious Adverse Event (SAE)Up to ~57 months

An SAE is any untoward medical consequence that results in death; requires inpatient hospitalization or prolongs existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or any other important medical event in the opinion of the Investigator.

Number of Participants Experiencing a Dose Interruption, Reduction, or DiscontinuationUp to ~45 months

The number of participants with a dose interruption, reduction, or discontinuation due to AE will be reported.

Overall Survival (OS)Up to ~57 months

OS is the time from randomization to time of death from any cause.

Trial Locations

Locations (173)

University of Arizona

🇺🇸

Tucson, Arizona, United States

University of California - San Diego

🇺🇸

La Jolla, California, United States

The Angeles Clinic and Research Institute- West Los Angeles

🇺🇸

Los Angeles, California, United States

ESC Norris Comprehensive Cancer Center

🇺🇸

Los Angeles, California, United States

UCLA Hematology/Oncology

🇺🇸

Los Angeles, California, United States

Stanford Cancer Institute - Stanford Cancer Center Palo Alto

🇺🇸

Palo Alto, California, United States

Saint John's Health Center - John Wayne Cancer Institute (JWCI)

🇺🇸

Santa Monica, California, United States

University of Colorado, Anschutz Medical Campus

🇺🇸

Aurora, Colorado, United States

UConn Health-Farmington (University of Connecticut Health Center (UCHC))

🇺🇸

Farmington, Connecticut, United States

Georgetown University

🇺🇸

Washington, District of Columbia, United States

Scroll for more (163 remaining)
University of Arizona
🇺🇸Tucson, Arizona, United States
Terri Katz
Contact
520-621-2029
tkatz@arizona.edu

MedPath

Empowering clinical research with data-driven insights and AI-powered tools.

© 2025 MedPath, Inc. All rights reserved.