Will the FDA approve deramiocel in Duchenne muscular dystrophy before 30 November 2026?

• What pushes it up. The FDA extended the PDUFA date to November 22, 2026, to review 24-month open-label extension data rather than issuing an immediate rejection, suggesting the data is under active consideration [0].
• What pushes it up. The sponsor reported positive 24-month HOPE-3 data, which they claim supports the preservation of upper-limb function [6, 7].
• What pushes it up. Data from the HOPE-3 trial was published in The Lancet, providing a degree of peer-reviewed validation for the study's findings [2].
• What pushes it up. The indication has been reframed to a more specific endpoint (preservation of upper-limb function), which can sometimes facilitate a clearer path to approval in rare diseases [Starting State].
• What pushes it down. The application has a history of significant regulatory friction, including one CRL and two prior delays [Starting State].
• What pushes it down. The PDUFA date of November 22 is only eight days before the resolution deadline, leaving almost no margin for further administrative delays or a third postponement [Starting State].
• What pushes it down. Market reports suggest that the 24-month OLE data may not have fully addressed existing regulatory concerns, leading to investor skepticism [5].
• What pushes it down. The classification of the OLE data as a 'major amendment' indicates that the initial submission was insufficient for approval [0].
• What would move this number most. The FDA's interpretation of the 24-month open-label extension data and whether it provides the 'substantial evidence of effectiveness' required to overcome the deficiencies noted in the previous CRL.

• What pushes it up. The FDA accepted the submission of 24-month open-label extension data from the HOPE-3 trial as a major amendment and set a new PDUFA date of 22 November 2026, indicating active review rather than immediate rejection [1].
• What pushes it up. Capricor reported positive 24-month HOPE-3 data for deramiocel, supporting the reframed indication around preservation of upper-limb function [4].
• What pushes it down. The application has a history of regulatory hurdles, having already received one CRL and two delays [1].
• What pushes it down. The margin of error is extremely small, with only 8 days between the PDUFA date (22 November 2026) and the resolution deadline (30 November 2026); any further delay or a CRL will result in a 'No' [1].
• What pushes it down. Tier 4 reports indicate that the 24-month data may not have fully resolved regulatory concerns, causing a drop in stock price [4].
• What would move this number most. Whether the FDA finds the 24-month HOPE-3 open-label extension data sufficient to support approval for the reframed indication without requiring further clinical trials or causing another delay.

• What pushes it up. PDUFA target date set for 22 Nov 2026, which is before the deadline, indicating FDA intends to decide by then [tier 1]
• What pushes it down. Application has already received a complete response letter and two prior delays, suggesting regulatory concerns [tier 1]
• What pushes it down. FDA classified the 24‑month extension data as a "major amendment", implying additional scrutiny [tier 1]
• What would move this number most. Whether the FDA will resolve the outstanding issues raised in the complete response letter before the PDUFA date

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Reasons not recorded for this revision (detailed history has only been kept since recently).

Reasons not recorded for this revision (detailed history has only been kept since recently).