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OS Therapies Announces EMA Initiates Rolling Review of Conditional Marketing Authorization Application for OST-HER2 in the Prevention or Delay of Recurrence in Fully Resected Pulmonary Metastatic Osteosarcoma

$OSTXPress releaseApr 30, 2026, 6:00 AM ETRead the release

OS Therapies announced that the EMA has initiated a rolling review of the Conditional Marketing Authorization request for OST-HER2 in osteosarcoma, while the UK MHRA granted Advanced Therapy Medicinal Product designation. Regulatory alignment has been achieved on using 3-year overall survival as the primary efficacy endpoint for confirmatory Phase 3 trials, which are planned to initiate in Q3 2026.

Key figures

Guidance
Peak European sales exceeding $300 million; over $50 million in sales expected in 2027
Vat tax refund gbp
1.45 million
Kras mutation percentage
76%

AI analysis

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AI-generated analysis of a public disclosure. Not investment advice; verify against the original document.

    OSTX: OS Therapies Announces EMA Initiates Rolling Review of Conditional Marketing Authorization Application for OST-HER2 in the Prevention or Delay of Recurrence in Fully Resected Pulmonary Metastatic Osteosarcoma — AI Analysis | Signal8