CHICAGO, Dec. 02, 2025 (GLOBE NEWSWIRE) — Quetzal Therapeutics, a biopharmaceutical company specializing in developing transformative treatments for rare diseases, announced the initiation of a pivotal Phase III clinical trial of QTX-2101, an investigational oral arsenic trioxide capsule. The trial will evaluate the efficacy, safety, and pharmacokinetics of QTX-2101, as a potential new treatment for acute promyelocytic leukemia (APL), a rare and aggressive blood cancer.