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Brenetafusp

Phase 3

Advanced Melanoma | Small molecule | Oncology |Immunocore Holdings plc|Last Updated: Mar 6, 2026

Target and mechanism

Molecular targetPRAME
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment680

FDA Designations

No designations recorded

Clinical trial landscape

Brenetafusp · 2 trials · 2 indications

Phase 3 1Phase 1 1
NCT06112314IMC-F106C Regimen Versus Nivolumab Regimens in Previously Untreated Advanced Melanoma (PRISM-MEL-301)Advanced Melanoma
RECRUITING680 Analytics
PHASE3RECRUITING
IMC-F106C Regimen Versus Nivolumab Regimens in Previously Untreated Advanced Melanoma (PRISM-MEL-301)
Advanced MelanomaUnlock trial analytics

Study Endpoints

Primary Endpoints

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).

Phase 1: Incidence of dose-limiting toxicity (DLT)s
Up 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 discontinuations
Up 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 urinalysis
Up to 30 days after the last dose of study therapy
Phase 1: Number of participants with abnormal vital signs
Up to 30 days after the last dose of study therapy
Phase 1: Mean change from baseline in QTcF interval
Up to 30 days after the last dose of study therapy
Phase 2: Best overall response (BOR)
Up to ~2 years

Secondary Endpoints

Overall Survival (OS)
Up to ~57 months
Overall Response Rate (ORR)
Up to ~45 months
Number of Participants Experiencing ≥1 Adverse Event (AE)
Up to ~57 months
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arm A: Brenetafusp Low Dose + NivolumabEXPERIMENTALParticipants 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. Closed to randomization after dose recommendation by the IDMC in November 2025.
Arm B: Brenetafusp High Dose + NivolumabEXPERIMENTALParticipants 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. Selected as go-forward experimental arm after dose recommendation by the IDMC in November 2025
Arm C: Nivolumab OR Nivolumab + RelatlimabACTIVE_COMPARATORParticipants receive nivolumab 480 mg monotherapy, or nivolumab 480 mg + relatlimab 160 mg, Q4W.
Brenetafusp MonotherapyEXPERIMENTALParticipants receive brenetafusp.
Brenetafusp and Anti-PD(L)1 AgentEXPERIMENTALParticipants receive brenetafusp and pembrolizumab.
Brenetafusp and ChemotherapyEXPERIMENTALParticipants receive brenetafusp and chemotherapy. Choice of chemotherapy is dependent on cohort.
Brenetafusp and Targeted TherapyEXPERIMENTALParticipants receive brenetafusp and a selected targeted therapy. Receipt of kinase inhibitor is dependent on histology.
Brenetafusp and Multimodal TherapyEXPERIMENTALParticipants receive brenetafusp, biologics (eg, pembrolizumab, bevacizumab) IV infusions and chemotherapy IV infusions based on histology.

Interventions

NameTypeDescription
BrenetafuspDRUGSoluble PRAME-specific T cell receptor with anti-CD3 scFV concentrate for solution for intravenous (IV) infusion at a unit dose of 0.2 mg/mL.
NivolumabDRUGConcentrate for solution for infusion at a unit dose of 10 mg/mL.
Nivolumab + RelatlimabDRUGConcentrate for solution for infusion at a unit dose of 16 mg/mL.
Brenetafusp and pembrolizumabDRUGBrenetafusp and pembrolizumab IV infusions
Brenetafusp and chemotherapyDRUGBrenetafusp and chemotherapy IV infusions
Brenetafusp and monoclonal antibodies and chemotherapyDRUGBrenetafusp and a monoclonal antibody therapy and chemotherapy
Brenetafusp and tebentafuspDRUGBrenetafusp and tebentafusp IV infusions
Brenetafusp and bevacizumabDRUGBrenetafusp and bevacizumab IV infusions
Brenetafusp and kinase inhibitorsDRUGBrenetafusp and oral kinase inhibitors
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites211

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 * Part...

Countries:United StatesArgentinaAustraliaAustriaBelgiumBrazilBulgariaCanadaCzechiaDenmarkFinlandFranceGermanyHungaryItalyLithuaniaMexicoNorwayPolandPortugalRomaniaSpainSwedenSwitzerlandTurkey (Türkiye)United KingdomIrelandNetherlandsNew ZealandSouth Korea
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Frequently asked questions about Brenetafusp

What is Brenetafusp used for?

Brenetafusp is an investigational oncology therapy being studied for advanced melanoma and select advanced solid tumors. It is currently in Phase 3 clinical development for previously untreated advanced melanoma, and in Phase 1 for select advanced solid tumors. Brenetafusp is not yet approved by regulatory authorities.

What does Brenetafusp target?

Brenetafusp targets PRAME, a tumor-associated antigen. It is being developed as a small molecule therapy for oncology indications. The drug is designed to engage PRAME-expressing tumor cells, and its clinical trials include biomarker-selected patient populations.

Who makes Brenetafusp?

Brenetafusp is being developed by Immunocore Holdings plc, a biopharmaceutical company traded on the NASDAQ under the ticker symbol IMCR. The company is conducting clinical trials of Brenetafusp in advanced melanoma and select advanced solid tumors.

What phase is Brenetafusp in?

Brenetafusp is in Phase 3 clinical development for advanced melanoma, based on the active PRISM-MEL-301 trial. It is also being studied in a Phase 1 trial for select advanced solid tumors. Brenetafusp is an investigational drug and has not received FDA approval.

What clinical trials is Brenetafusp in?

Brenetafusp is being evaluated in two clinical trials. NCT06112314 is a Phase 3, randomized, active-controlled study of Brenetafusp versus nivolumab regimens in previously untreated advanced melanoma, with 680 participants. NCT04262466 is a Phase 1 study of Brenetafusp as a single agent and in combination with checkpoint inhibitors in select advanced solid tumors, with 410 participants.

Is Brenetafusp the same as IMC-F106C?

Yes, Brenetafusp is also known as IMC-F106C. Clinical trial records use the name IMC-F106C, such as in the Phase 3 PRISM-MEL-301 trial and the Phase 1 safety and efficacy study. Both names refer to the same investigational drug being developed by Immunocore.