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OS Therapies Launches Animal Health Arm to Tackle Dog Bone Cancer With $150M Market Potential

Benzinga·05/15/2025 10:09:36
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OS Therapies (NYSE-A: OSTX) ("OS Therapies" or "the Company"), a clinical-stage immunotherapy and Antibody Drug Conjugate (ADC) biopharmaceutical company, today announced the launch of OS Animal Health, Inc., a wholly owned subsidiary focused on commercializing OST-HER2 for the treatment of canine osteosarcoma.

OST-HER2 is an off-the-shelf immunotherapy candidate that has shown positive clinical data in both human pediatric and canine osteosarcoma. Parent company OS Therapies is advancing towards an FDA Accelerated Approval submission, anticipated in the third quarter of 2025, for the prevention of recurrence in pediatric patients with fully resected, lung-metastatic osteosarcoma. Concurrently, its wholly-owned subsidiary, OS Animal Health, is focused on re-establishing USDA conditional approval for OST-HER2 in canine osteosarcoma, with a targeted submission in the second half of 2025.