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Xilio Therapeutics Announces Initiation of Phase 2 Trial for Efarindodekin Alfa (XTX301), a Tumor-Activated IL-12, and Achievement of $17.5 Million Development Milestone Under Exclusive License Agreement with Gilead

Phase 1 data for efarindodekin alfa (XTX301) demonstrate promising anti-tumor activity in patients with advanced solid tumors Achievement of milestone extends anticipated cash runway into first quarter of 2027 WALTHAM, Mass., Sept. 09, 2025 (GLOBE NEWSWIRE) -- Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, today announced the initiation of patient dosing in Phase 2

articleGilead Sciences, Inc.September 9, 20259/company/gilead-sciences-inc/news/xilio-therapeutics-announces-initiation-of-phase-2-trial-for-efarindodekin-alfa-xtx301-a-tumor-activated-il-12-and-achievement-of-dollar175-million-development-milestone-under-exclusive-license-agreement-with-gilead
Xilio Therapeutics Announces Initiation of Phase 2 Trial for Efarindodekin Alfa (XTX301), a Tumor-Activated IL-12, and Achievement of $17.5 Million Development Milestone Under Exclusive License Agreement with Gilead

About this update from Gilead Sciences, Inc.

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