Omeros Announces Encouraging Data from Phase 1 Clinical Trial for PDE10 Program

Omeros Corporation

today announced promising data from the single-ascending-dose (SAD) study portion of the Company's Phase 1 clinical trial evaluating OMS824, the lead compound in Omeros' phosphodiesterase 10 (PDE10) program. OMS824 selectively inhibits PDE10, an enzyme expressed in areas of the brain linked to a wide range of diseases that affect cognition, including schizophrenia and Huntington's disease. In this successful SAD study, OMS824 was well tolerated and demonstrated linear pharmacokinetics, a long half-life consistent with once daily dosing and good systemic exposure that, at the highest dose administered, resulted in the expected pharmacological effects in healthy subjects. With these encouraging data, Omeros has advanced OMS824 to the next stage of the Phase 1 clinical trial – the evaluation of multiple-dose administration of the compound. Omeros expects complete data to be available in early 2013. "OMS824 appears to have excellent pharmaceutical properties, and we look forward to completing this Phase 1 clinical trial and starting studies in schizophrenia patients," said Gregory A. Demopulos, M.D., chairman and chief executive officer of Omeros. "While preparing for the next set of OMS824 studies, our pipeline continues to advance toward additional near-term milestones – Phase 3 data for OMS103HP this month, an NDA submission next quarter and, for as many as three additional programs, entry into the clinic in 2013."