Posts tagged ‘Complete Response Letter’

XARELTO (rivaroxaban) Advisory Committee Meeting

The application for XARELTO (revaroxaban), the J&J drug that was developed for it’s anti-clotting properties in preventing strokes is to be reviewed by the FDA CardioRenal Drug Advisory Committee on Thursday, Sept 9, 2011.  Those interested in the FDA view of the application need read no further than the summary of the FDA Briefing Document to learn that the FDA Medical team has significant reservations on both the safety and the efficacy of this drug.  How significant you ask?  So significant that if I were advising the company, I’d tell them to cancel the Advisory Committee meeting.  The FDA review started with a comment about readiness to issue a Complete Response Letter, that’s how serious!  The FDA review has requested at least one additional study, that’s how serious.  The FDA has said that any drug that expects to compete with Warfarin in these patients better be as good as Warfarin, that’s how serious.  It looks like the FDA thinks that XARELTO performs at less than 70% of the efficacy of Warfarin.

Ezogabine – PDUFA Date follow up

GSK and Valeant announced today that they have received a Complete Response Letter from the FDA that rejects their application for ezogabine for the treatment of epilepsy. This comes after the Advisory Committee recommend approval on August 11, 2011. 
The company releases are not very helpful in defining the reason for the rejection, only citing non-clinical issues that need to be resolved.   There was an earlier postponement of the PDUFA Date, so this may indicate the problem resides in the manufacturing area.  The company releases also indicate that the issues will be resolved in early 2011.