FDA Reviewers Say Vorapaxar Approvable, But Question Study Changes

As the platelet inhibitor heads to an advisory committee, agency reviewers raise issues about safety-based changes to its Phase III trials.

Merck & Co. Inc. may have to overcome questions about changes made to its primary efficacy studies when an advisory committee considers its platelet inhibitor vorapaxar.

FDA reviewers questioned safety-related changes made during the TRACER and TRA2P Phase III trials and Merck’s subsequent decision to narrow...

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