Federal court rules Ampyra patents invalid, Acorda stock sinks 25%

Federal court rules Ampyra patents invalid, Acorda stock sinks 25%

Source: 
Biopharma Dive
snippet: 

A federal appeals court has upheld a previous ruling, invaliding patents for Acorda Therapeutics' multiple sclerosis drug Ampyra and opening the door for generic competition that could threaten the biotech's livelihood.