Biohaven NDA Filed for Spinocerebellar Ataxia Drug

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FDA has accepted for priority review a Biohaven NDA for troriluzole for treating adult patients with spinocerebellar ataxia (SCA), a rare genetic neurodegenerative disease. The company says the agency will take a review action on the NDA within six months or sometime during the third quarter.

The submission is based on data from Study BHV4157-206-RWE (NCT06529146), in which troriluzole met the study's primary endpoint of change from baseline on the functional Scale for the Assessment and Rating of Ataxia (f-SARA), in all SCA genotypes, at three years compared to an external control arm. “Troriluzole showed statistically significant superiority across nine consecutive, prespecified primary and secondary endpoints with highly consistent, sustained, robust and clinically meaningful treatment effects,” Biohaven says. “SCA patients treated with troriluzole showed a 50-70% slower rate of decline, representing 1.5-2.2 years delay in disease progression, over the three-year study period.”

Troriluzole is described by the company as a new chemical entity and third-generation novel prodrug that is intended to modulate glutamate, the “most abundant excitatory neurotransmitter in the brain.”

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