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New trial
Multiple solid tumors

Phase Ib IMA203 PRAME TCR-T + mRNA-4203 PRAME vaccine in melanoma/sarcoma

Trial ID
NCT06946225 on ClinicalTrials.gov
Cancer type
Solid Tumors and Multiple Tumor Type
Stage of research
First-in-human
Location
2 Locations (New York, NY, and Houston, TX)
Published in
New in Oncology - Sept 12, 2025

Immatics trials a first-in-human combo to amplify PRAME-specific T cells by pairing TCR-T with a PRAME mRNA vaccine. Post-IO melanoma needs deeper durability beyond ipi/nivo/TIL; synchronized vaccination may sustain TCR-T expansion and functionality. Manufacturing/infusion safety plus early tumor-shrinkage and antigen-specific T-cell kinetics will be watched closely.

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