Receptos, Inc., announced that their highly selective sphingosine-1-phosphate receptor 1 (S1P1) agonist, RPC1063, has been administered to the first subject in a single-ascending and multiple-ascending dose design Phase 1 clinical safety study. The study is being conducted in healthy male and female volunteers at a single site in the United States under an Investigational New Drug (IND) application recently allowed by the FDA. Receptos is developing RPC1063 as a potential treatment for multiple sclerosis.
“The progression of RPC1063 into Phase 1 development marks the evolution of Receptos into a clinical stage organization. The exceptional performance of the development team at Receptos has been demonstrated by their ability to initiate clinical trials for our lead compound within 14 months of our Series A funding round”
The study will generate data to confirm that the characteristics of RPC1063 meet pre-specified pharmacokinetic (PK), pharmacodynamic (PD), and safety criteria. These include half-life determination to support once-per-day dosing, and measures that will focus on extent and speed of reversibility of lymphopenia. Safety features will also include observation of cardiovascular, hepatic, lung, and ocular events. The goal of the Phase 1 study will be to utilize the PK-PD relationship of RPC1063 to accurately select dose levels for Phase 2 evaluation.
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