EXTON, Pa., Dec. 13, 2010 /PRNewswire/ -- BioTrends Research Group, Inc. finds that on most metrics, perceptions of Acorda's Ampyra, the first FDA-approved product for the management of a multiple sclerosis (MS) symptom, have remained consistent or improved since earlier waves, including product awareness, interest, satisfaction, the managed care process and Acorda's patient support program. Compared to early in the launch, patient requests play a less impactful role in Ampyra uptake. With increased familiarity after seven months on the market, neurologists are gaining a clear picture of the discontinuation rates, responder rates and insurance dynamics associated with Ampyra.