HAWTHORNE, N.Y.--(BUSINESS WIRE)--Data from two long-term open-label extension studies of Fampridine-SR show that 86.0% of participants remained on therapy after a maximum treatment time of 15 months in study MS-F204EXT, and 69.5% remained on therapy after a maximum treatment time of 36 months in study MS-F203EXT. The average treatment time for all patients was 10 months in the MS-F204EXT study and 26 months in the MS-F203EXT study, both inclusive of dropouts. The EFNS poster presentation inadvertently reported maximum treatment times for both studies as the median treatment times. The types of adverse events reported in the two extensions studies were consistent with the expected adverse event profile in people with more advanced multiple sclerosis (MS) and were similar between the two studies. These extension studies followed double-blind, placebo-controlled Phase 3 studies of Fampridine-SR, MS-F203 and MS-F204, in people with MS to improve walking ability.
