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Omeros prices transplant complication drug at $36,000 per dose

By Thomson Reuters Jan 7, 2026 | 5:49 PM

By Puyaan Singh

Jan 7 (Reuters) – Omeros will price its recently approved drug for a life-threatening transplant complication in ‍adults and children aged two and older at $36,000 per single-dose vial, CEO Gregory Demopulos said on a call with analysts on Wednesday.

Shares of the company were up ‌6.6% in extended trade.

The drug, ‌sold under the brand name Yartemlea, treats transplant-associated thrombotic microangiopathy (TA-TMA), a serious complication that can arise after a stem cell transplant, particularly ​when donor cells are used.

Yartemlea, a monoclonal antibody drug, works by blocking ‍the MASP-2 protein that ​plays a key role in ​the immune system.

Last month, Yartemlea became the ‍first treatment to be approved for TA-TMA.

“Across the pivotal clinical trial … median utilization was 8 to 10 vials per treatment course,” Demopulos said on the ‍call, adding that around “11,000 allogeneic (donor cell) transplants are performed each year in the United States.”

“TA-TMA ‍develops in ‍up to 56% of allogeneic ​transplant recipients,” he added.

The company ​said ⁠it expects a decision from ‌the European medicines regulator in mid-2026.

The company initiated the commercial launch of Yartemlea in the U.S. on January 2, Demopulos said.

(Reporting by Puyaan Singh in Bengaluru; Editing by ⁠Sherry Jacob-Phillips)