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Omeros Corporation

Omeros Corporation

Biopharmaceutical Company

Appears in 1 story

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First treatment approved for deadly stem cell transplant complication

New Capabilities

First commercial product sales achieved; patients receiving treatment nationwide

For decades, patients with transplant-associated thrombotic microangiopathy (TA-TMA) after stem cell transplants faced no FDA-approved treatment—mortality rates reached 80-90% for severe cases. In December 2025, the FDA approved Yartemlea, the first therapy for TA-TMA.

Updated May 23