GSK hands back failed muscular dystrophy drug to Prosensa

The signage for the GlaxoSmithKline building is pictured in LondonBy Ben Hirschler LONDON (Reuters) – GlaxoSmithKline has handed back rights to an experimental drug for Duchenne muscular dystrophy to U.S.-listed Dutch biotech firm Prosensa after it failed last year in a critical clinical trial. Both companies said on Monday that Prosensa would now have full and unencumbered rights to drisapersen, as well as other compounds at an earlier stage of development.