CAMBRIDGE, Mass. & CARLSBAD, Calif.--(BUSINESS WIRE)--Regulus Therapeutics LLC, a joint venture between Alnylam Pharmaceuticals, Inc. (Nasdaq: ALNY) and Isis Pharmaceuticals, Inc. (Nasdaq: ISIS) formed to discover, develop, and commercialize microRNA (miRNA) therapeutics, announced today that it has been named to the annual FierceBiotech “Fierce 15” list, designating it as one of the top privately held biotech companies of 2008.