SOUTH SAN FRANCISCO, CA--(MARKET WIRE)--Jun 18, 2007 -- CoMentis, Inc., a privately held biopharmaceutical company, announced today it is initiating a Phase I first-in-man study of its proprietary, orally bioavailable, small-molecule beta-secretase inhibitor CTS-21166, which is being developed as a disease-modifying treatment for Alzheimer’s disease (AD). In preclinical studies, CTS-21166 exhibits excellent efficacy, selectivity, brain penetration and pharmacologic activity.