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Recruiting Phase 1 NCT06946225

NCT06946225 ACTengine® IMA203 Combined With mRNA-4203

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Clinical Trial Summary
NCT ID NCT06946225
Status Recruiting
Phase Phase 1
Sponsor Immatics US, Inc.
Condition Cutaneous Melanoma
Study Type INTERVENTIONAL
Enrollment 15 participants
Start Date 2025-07-25
Primary Completion 2029-08

Trial Parameters

Condition Cutaneous Melanoma
Sponsor Immatics US, Inc.
Study Type INTERVENTIONAL
Phase Phase 1
Enrollment 15
Sex ALL
Min Age 18 Years
Max Age N/A
Start Date 2025-07-25
Completion 2029-08
Interventions
IMA203mRNA-4203

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Brief Summary

This purpose of this clinical trial is to evaluate the safety, tolerability and anti-tumor activity of IMA203 in combination with different doses of mRNA-4203. The trial includes participants with previously treated unresectable or metastatic cutaneous melanoma (CM) or synovial sarcoma (SS).

Eligibility Criteria

Inclusion Criteria: * Pathologically confirmed and documented cutaneous melanoma (CM) or synovial sarcoma (SS) with unresectable or metastatic disease * HLA-A\*02:01 positive * Adequate selected organ function per protocol * Eastern Cooperative Oncology Group (ECOG) performance status 0-1 * Measurable disease according to Response Evaluation Criteria in Solid Tumors (RECIST 1.1) * Life expectancy more than 5 months * CM participants who must have disease progression (resistance, toxicity) on or after at least one PD-1 inhibitor * SS participants must have received (or declined) at least one line of treatment (including SoC) and are still in need of further systemic therapy. * Female participants of childbearing potential must use adequate contraception prior to trial entry until 12 months after the infusion of IMA203 and 15 days after the last mRNA 4203 dose administration Other protocol defined inclusion criteria could apply Exclusion Criteria: * History of other malignancies (except

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