OS Therapies Completes Final Patient Visit In OST-504 Phase 1b Prostate Cancer Trial

OS Therapies Incorporated

OS Therapies Incorporated

OSTX

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  • Clinical data from Phase 1b prostate cancer trial to be released in Q4/25
  • Additionally, updated 2-year overall survival data from all 40 patients in the Phase 2b clinical trial of OST-HER2 in the prevention of delay of recurrent, fully resected, pulmonary metastatic osteosarcoma to be released on October 10, 2025

New York, New York--(Newsfile Corp. - September 12, 2025) - OS Therapies Inc. (NYSE:OSTX) ("OS Therapies" or "the Company"), a clinical-stage cancer immunotherapy and antibody drug conjugate biotechnology company, today announced that the last patient enrolled in its OST-504 (previously ADXS-504) Phase 1b clinical trial in subjects with biochemically recurrent prostate cancer previously treated with radical prostatectomy (RP) or radiation therapy (external beam or brachytherapy) who are not currently receiving androgen ablation therapy has completed their last patient visit (NCT05077098). A total of 7 patients enrolled in the study.

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