FDA with­draws Helsinn’s ac­cel­er­at­ed ap­proval for can­cer drug af­ter com­pa­ny’s re­quest

The FDA on Fri­day with­drew an ac­cel­er­at­ed ap­proval for Helsinn’s bile duct can­cer drug, two years af­ter the com­pa­ny couldn’t com­plete its con­fir­ma­to­ry tri­al and …

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