CHARLOTTE, N.C., Nov. 13, 2008 (GLOBE NEWSWIRE) -- Chelsea Therapeutics International, Ltd. (Nasdaq:CHTP) has begun dosing volunteers in the single ascending dose (SAD) study of its Phase I clinical program for CH-4051, the second drug candidate from its portfolio of orally available, non-metabolized antifolates engineered to provide potent anti-inflammatory activity without the liver and kidney toxicities or tolerability related side effects associated with chronic methotrexate (MTX) therapy.