Iovance Biotherapeutics reported early data from an MSKCC-led pilot clinical trial of its tumor-infiltrating lymphocyte $(TIL)$ therapy lifileucel in patients with advanced undifferentiated pleomorphic sarcoma $(UPS)$ or dedifferentiated liposarcoma (DDLPS) who had received at least one prior systemic therapy. In the first six evaluable patients treated with lifileucel monotherapy, the physician-assessed confirmed objective response rate by RECIST v1.1 was 50%, and the company said the safety profile was consistent with lifileucel in other indications. Iovance plans to start a single-arm registrational trial in second-line advanced UPS and DDLPS in the second quarter of 2026 and to discuss an accelerated approval pathway with the FDA. The company said the results will be presented at a medical conference in 2026.
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