Lifileucel (TIL) Therapy After PD-1 Blockade Failure in Kidney Cancer

This is a Phase II single-arm trial of tumor-infiltrating lymphocyte (TIL) therapy in kidney cancer. Briefly, participants who meet eligibility criteria undergo surgical removal of a metastasis or primary tumor to provide material for generation of the TIL product in a lab, which involves growing and expanding the immune cells contained in the tumor before infusing the TIL product into the patient. Baseline evaluations occur before tumor harvest, and participants who proceed on study undergo tumor resection so tissue can be shipped to a manufacturing facility to create the autologous TIL product LN-145/lifileucel. The treatment plan includes 5 days of lymphodepleting chemotherapy before TIL infusion, using cyclophosphamide and fludarabine, followed by LN-145 infusion on Day 0 and IL-2 (aldesleukin) afterward. The study calendar includes post-treatment visits around Day 14, Day 28, Weeks 8, 12, and 18, then every 3 months starting at Month 6, with long-term follow-up by telephone continuing until study end or withdrawal, up to Month 36. Participants undergo screening and tumor resection to obtain tissue for manufacture of the TIL product. If treatment proceeds, participants receive lymphodepleting chemotherapy with cyclophosphamide and fludarabine, followed by LN-145 infusion and IL-2 (aldesleukin). Participants complete scheduled clinic-based assessments and longer-term follow-up, including telephone follow-up approximately every 3 months for up to about 3 years