New analyses on individual responders, survival and biomarker data are not independent evidence of AMX0035’s clinical effect in ALS, agency says in advisory committee briefing document. However, FDA’s framing of the issues, with an emphasis on regulatory flexibility and unmet medical need, could sway a favorable recommendation in its second panel review.
Amylyx's ALS drug is getting a second chance with an FDA advisory committee. • Source: Shutterstock
US Food and Drug Administration reviewers appear unpersuaded that Amylyx Pharmaceuticals, Inc. has provided the confirmatory evidence needed to support approval of its amyotrophic lateral sclerosis drug AMX0035 on the basis of a single Phase II trial.
However, the agency’s framing of the background and issues – emphasizing regulatory flexibility in the context of a rare, serious...
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A real-world evidence study also does not meet the regulatory standard for an adequate and well-controlled clinical investigation, the agency said. The FDA should allow the accelerated approval drug to remain available like other treatments that failed their confirmatory trials, Intercept said.
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Proposal to have panelists rate the strength of efficacy and safety evidence on a numeric scale also draws support in written comments on ways to optimize the advisory committee process.
A real-world evidence study also does not meet the regulatory standard for an adequate and well-controlled clinical investigation, the agency said. The FDA should allow the accelerated approval drug to remain available like other treatments that failed their confirmatory trials, Intercept said.
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