Questions Raised on Spravato Approval

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As reported by NBC News, Kaiser Health News says FDA’s approval of Janssen’s Spravato (esketamine) raises questions about “how drugmakers can take advantage of shortcuts in the FDA process with the agency’s blessing and maneuver through safety and efficacy reviews to bring a lucrative drug to market.” The online report shows that Janssen got FDA to designate esketamine a breakthrough therapy because it showed the potential to reverse depression rapidly. Breakthrough therapy means there is more frequent input from FDA, the report says.

In the case of esketamine, those discussions between the agency and the company affected the amount and quality of evidence required by FDA for approval, including how many drugs must fail for a patient’s depression to be considered intractable and how many successful clinical trials are needed.

Any such prior agreements, Kaiser Health says, can leave FDA advisory committee members “hamstrung in reaching a verdict.”

The report discusses the advisory committee deliberation on Spravato and reports that some members felt there was insufficient evidence to warrant a recommendation for approval. But FDA had approved the trial design and number of trials needed.

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