Today, the FDA issued a complete response letter (CRL) for vatiquinone (PTC Therapeutics), delaying its potential approval as a treatment for Friedreich ataxia amid efficacy concerns.

The original NDA submission included data from the registration-directed phase 3 MOVE-FA trial as well as 2 long-term studies evaluating vatiquinone in FA.

The small molecule, vatiquinone, had already flunked a Phase III trial, but the company pushed ahead with an approval bid ...

FDA rejected PTC Therapeutics' vatiquinone for Friedreich's ataxia, citing insufficient efficacy data and requiring another ...

PTC Therapeutics has long been trying to workshop its vatiquinone into a marketable treatment for Friedreich's ataxia (FA) after a phase 3 fail in 2023. | Despite missing its primary endpoint in a ...

The U.S. Food and Drug Administration has denied approval for PTC Therapeutics' oral medication for a rare genetic disorder ...

PTC Therapeutics (PTCT) on Tuesday announced that they received a complete response letter for vatiquinone in Friedreich’s ataxia, with the FDA ...

FDA states substantial evidence of efficacy was not demonstrated.

PTC Therapeutics, Inc. (NASDAQ: PTCT) announced today that the U.S. Food and Drug Administration (FDA) has issued a ...

PTC Therapeutics (NASDAQ:PTCT) stock drops as the FDA declines to approve vatiquinone, its treatment for Friedreich's ataxia, ...

PTC Therapeutics ( ($PTCT) ) has issued an update. On August 19, 2025, PTC Therapeutics announced that the FDA issued a Complete Response Letter ...

PTC Therapeutics, Inc. (NASDAQ: PTCT) announced today that the U.S. Food and Drug Administration (FDA) has issued a Complete Response Letter (CRL) related to the New Drug Application (NDA) for ...