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  • Topline results from vatiquinone MOVE-FA registrat...

Topline results from vatiquinone MOVE-FA registration-directed trial

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Published:24th May 2023

PTC Therapeutics, Inc. reported topline results from the MOVE-FA trial of vatiquinone in patients with Friedreich ataxia

The study did not meet its primary endpoint of statistically significant change in mFARS score at 72 weeks in the primary analysis population. However, vatiquinone treatment did demonstrate significant benefit on key disease subscales and secondary endpoints. In addition, in the population of subjects that completed the study protocol, significance was reached in the mFARS endpoint and several secondary endpoints.

"While we are disappointed that the study did not achieve its primary endpoint, we are encouraged by the findings of meaningful impact on several different aspects of FA disease progression and morbidity over 72 weeks," said Matthew B. Klein, M.D., Chief Executive Officer, PTC Therapeutics. "Given the signals of clinical benefit, vatiquinone's well-established safety profile in children, and the unmet medical need for pediatric patients with FA, we look forward to discussing a potential path to registration with regulatory authorities."

The MOVE-FA trial enrolled 146 pediatric and adult patients, the majority of which were under 18 years of age. The mean placebo corrected change in the mFARS score in the primary analysis population was 1.6 (p=0.14). Notably, there was significant benefit recorded in the bulbar and upright stability subscales (nominal p values of 0.044 and 0.021, respectively) which are regarded as reflective of key aspects of disease morbidity and predictive of loss of time to loss of ambulation. In addition, a statistically significant difference was recorded on the Modified Fatigue Scale, which captures one of the most impactful sources of disease morbidity (nominal p value of 0.025). On a prespecified sensitivity analysis of subjects who completed 72 weeks on assigned therapy, the placebo corrected difference was 2.31, which represents a 75% slowing in disease progression over 72 weeks. Overall, vatiquinone was demonstrated to be well tolerated, adding to the large volume of safety data collected.

About the MOVE-FA Clinical Trial; The Phase III registration-directed trial in Friedreich Ataxia patients, called MOVE-FA, is a randomized, placebo-controlled 72-week trial with the primary endpoint being change in the modified Friedreich Ataxia Rating Scale (mFARS) score. The mFARS is a clinical assessment that measures disease progression, namely swallowing and speech, upper and lower limb coordination, and upright stability. The key secondary endpoint is the change from baseline in activities of daily living as assessed by the FA-Activities of Daily Living (ADL) scale. Patients who completed the placebo portion of the trial will be trial are eligible to enroll in an open label 24-week extension.

Condition: Friedreichs Ataxia
Type: drug

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