CAMBRIDGE, Mass.--(BUSINESS WIRE)--Alnylam Pharmaceuticals, Inc. (Nasdaq: ALNY), a leading RNAi therapeutics company, announced today that its applications for ALN-TTR01 have been given clearance by Portuguese, Swedish, and British regulatory authorities to begin clinical testing. The trial will begin enrolling patients shortly in a blinded, randomized, placebo-controlled, multicenter Phase I study. ALN-TTR01 is a systemically delivered RNAi therapeutic being developed for the treatment of transthyretin (TTR)-mediated amyloidosis (ATTR), including familial amyloidotic polyneuropathy (FAP) and familial amyloidotic cardiomyopathy (FAC).