PTC Therapeutics Inc. is giving up hopes of getting ataluren approved as a treatment for nonsense mutation cystic fibrosis after the protein restoration therapy failed the primary and secondary endpoints in a second Phase III trial, news that caused the biotech's stock price to drop 20% March 2.
After ataluren failed its initial Phase III study for CF in 2014, the South Plainfield, NJ-based firm revised the design...






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