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IMA203

Phase 3

Melanoma, Cutaneous Malignant | Monoclonal antibody | Oncology |Immatics N.V.|Last Updated: May 29, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedACTIVE_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment360
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06743126SUPRAME-ACTengine® IMA203 vs. Investigator's Choice of Treatment in Previously Treated, Unresectable or Metastatic Cutaneous MelanomaPHASE3 RECRUITING 360Jan 14, 2025Oct 1, 2031May 29, 202666 United States, Canada +4
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Study Endpoints
Primary Endpoints
Progression-free survival assessed by BICR
up to 5 years post first treatment of last patient

progression-free survival (PFS), centrally assessed (by blinded independent central review) using RECIST 1.1

Secondary Endpoints
Overall survival (OS)
up to 5 years post first treatment of last patient
Objective response rate (ORR)
up to 5 years post first treatment of last patient
Progression-free survival
up to 5 years post first treatment of last patient
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Experimental armEXPERIMENTALNon-myeloablative chemotherapy for lymphodepletion (LD) over 4 days using fludarabine (FLU) and cyclophosphamide (CY), one-time administration of IMA203, and adjunctive therapy with low dose interleukin (IL)-2 for up to 10 days, starting approximately 24 h after IMA203 infusion, optional bridging therapy
Control arm- investigator's choiceACTIVE_COMPARATORInvestigator's choice of treatment approved by the respective Competent Authority (nivolumab plus relatlimab \[Opdualag®\], lifileucel, nivolumab, pembrolizumab, ipilimumab, or chemotherapy \[e.g., dacarbazine, temozolomide, paclitaxel, alb-bound paclitaxel, or paclitaxel plus carboplatin\]) as determined by the site investigator in accordance with current respective prescribing information (PI) and/or summary of product characteristics (SmPC), optional bridging therapy.
Interventions
NameTypeDescription
IMA203BIOLOGICALone-time administration of IMA203, and adjunctive therapy with low dose interleukin (IL)-2 for up to 10 days, starting approximately 24 h after IMA203 infusion, optional bridging therapy
nivolumab plus relatlimabBIOLOGICALin accordance with current respective prescribing information (PI) and/or summary of product characteristics (SmPC)
lifileucelBIOLOGICALin accordance with current respective prescribing information (PI) and/or summary of product characteristics (SmPC)
nivolumabBIOLOGICALin accordance with current respective prescribing information (PI) and/or summary of product characteristics (SmPC)
pembrolizumabBIOLOGICALin accordance with current respective prescribing information (PI) and/or summary of product characteristics (SmPC)
ipilimumabBIOLOGICALin accordance with current respective prescribing information (PI) and/or summary of product characteristics (SmPC)
DacarbazineDRUGin accordance with current respective prescribing information (PI) and/or summary of product characteristics (SmPC)
temozolomideDRUGin accordance with current respective prescribing information (PI) and/or summary of product characteristics (SmPC)
paclitaxelDRUGin accordance with current respective prescribing information (PI) and/or summary of product characteristics (SmPC)
paclitaxel plus carboplatinDRUGin accordance with current respective prescribing information (PI) and/or summary of product characteristics (SmPC)
Albumin-Bound PaclitaxelDRUGin accordance with current respective prescribing information (PI) and/or summary of product characteristics (SmPC)
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites66

Inclusion Criteria: * Pathologically confirmed and documented cutaneous melanoma- CM patients (including acral melanoma and melanoma of unknown primary) with unresectable or metastatic disease * HLA-A\*02:01 positive * Adequate selected organ function per protocol * Eastern Cooperative Oncology Gro...

Countries:United StatesCanadaFranceGermanyNetherlandsUnited Kingdom
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Recent Changes (Last 90 Days)
LOWMay 29, 2026NCT06743126lastUpdatePostDate: changed
LOWMay 29, 2026NCT06743126lastUpdatePostDate: changed
LOWMay 29, 2026NCT06743126lastUpdatePostDate: changed
LOWMay 26, 2026NCT06743126primaryCompletionDate: changed
LOWMay 24, 2026NCT06743126studyFirstPostDate: changed