Patent No. EP3706739 (titled "Use Of Riluzole Prodrugs To Treat Ataxias") was filed by Biohaven Pharmaceutical Holding on Nov 11, 2018. The application was issued on Oct 16, 2024.
Prodrugs of riluzole for treating spinocerebellar ataxia (SCA) comprising a riluzole molecule linked to a hydrophilic moiety, such as a carboxylic acid or ester group, to enhance solubility and bioavailability. The prodrugs are administered orally in a dosage of 17.5-200 mg/day, with a preferred dosage of 100-140 mg/day, and are effective in improving symptoms of SCA, including ataxia, dysarthria, and dysphagia, as measured by clinical rating scales such as the Scale for the Assessment and Rating of Ataxia (SARA).

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