EMA designates Osiris as Orphan Drug title holder for Prochymal

Osiris Therapeutics, Inc. (NASDAQ: OSIR), the leading stem cell company developing and marketing products to treat medical conditions in inflammatory, cardiovascular, orthopedic and wound healing markets, announced today that the European Medicines Agency (EMA) has designated Osiris as the Orphan Drug title holder for Prochymal® (remestemcel-L).

The EU Commission adopted the decision to transfer the designation of Prochymal (ex-vivo cultured adult human mesenchymal stem cells) as an orphan medicinal product under Regulation (EC) No 141/2000 of the European Parliament and of the Council. The Decision will appear in the EU Community Register of Orphan Medicinal Products.

In Europe, Orphan Drug designation provides a variety of incentives, including market exclusivity for up to 10 years following approval, to companies that develop drugs for underserved patient populations.

In the EU, the Orphan Drug designation for Prochymal is for the treatment of acute graft versus host disease (GvHD). Prochymal, a first-in-class allogeneic stem cell therapy, has already received approval in Canada and New Zealand for the treatment of acute GvHD in children, and is currently available in seven other countries including the United States under an Expanded Access Program (EAP). Recently, Swissmedic, the Swiss agency responsible for the evaluation of drugs, notified Osiris that Prochymal will be evaluated under its Rapid Authorization Procedure upon submission of the marketing application.