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Immatics Announces First Patient Treated with ACTengine® IMA203 TCR-T in Combination with Checkpoint Inhibitor Opdivo® (nivolumab) in Patients with Advanced Solid Tumors
The Phase 1b dose expansion cohort will evaluate safety, biological activity and initial anti-tumor activity of IMA203 TCR-T targeting PRAME in combination
About this update from Immatics N.v.
[{"type":"text","content":"The Phase 1b dose expansion cohort will evaluate safety, biological activity and initial anti-tumor activity of IMA203 TCR-T targeting PRAME in combination with nivolumab1, a PD-1 immune checkpoint inhibitor, in patients with multiple solid tumorsInitiation of the combination treatment follows positive interim results from the IMA203 monotherapy Phase 1a dose escalation cohort and determination of provisional recommended phase 2 doseIMA203 targets an HLA-A*02-presented peptide derived from the protein PRAME that is highly prevalent and homogenously expressed at high target copy numbers across several solid cancer indicationsIMA203 and nivolumab combination is part of Immatics' strategy to realize the full clinical potential of IMA203 TCR-T targeting PRAME; initial data read-out is planned for YE 2022 Houston, Texas and Tuebingen, Germany, May XX, 2022 – Immatics N.V. (NASDAQ: IMTX, “Immatics”), a clinical-stage biopharmaceutical company active in the discovery and development of T cell-redirecting cancer immunotherapies, today announced that the first patient has been dosed in the IMA203 and nivolumab combination Phase 1b dose expansion cohort. This cohort will evaluate Immatics’ TCR-engineered cell therapy (TCR-T) approach ACTengine® IMA203 targeting an HLA-A*02-presented peptide derived from PRAME, in combination with Bristol Myers Squibb’s PD-1 checkpoint inhibitor nivolumab, in patients with advanced solid tumors. The objectives of the study will be to evaluate the safety, biological activity, and initial anti-tumor activity of the IMA203 and nivolumab combination. “Initiating the second of three dose expansion cohorts is an important milestone in our comprehensive approach to target PRAME. It builds on the successful completion of the dose escalation part of the Phase 1 trial and the early positive clinical data we observed with IMA203,” said Cedrik Britten, Chief Medical Officer at Immatics. “We are excited to elucidate how the combination with an immune checkpoint inhibitor could enhance the potency of our engineered IMA203 T cells. We also look forward to initiating the third Phase 1b cohort with IMA203CD8, our next generation approach that additionally harnesses the power of CD4 T cells.” The IMA203 and nivolumab combination Phase 1b dose expansion cohort is expected to enroll up to 18 patients with different types of s...