KalVista Announces Orphan Drug Designation And NDA Submission For Sebetralstat In Japan

(RTTNews) - KalVista Pharmaceuticals, Inc. (KALV) announced Tuesday that Japan's Ministry of Health, Labour and Welfare (MHLW) has granted sebetralstat Orphan Drug Designation. The Company has also submitted a New Drug Application (NDA) for sebetralstat to the Agency.

If approved, sebetralstat, a novel, investigational oral plasma kallikrein inhibitor for the on-demand treatment of hereditary angioedema (HAE) attacks in adults and adolescents aged 12 years and older, would be the first oral on-demand treatment for HAE in Japan.

The NDA submission is supported by previously disclosed results, including data from the KONFIDENT phase 3 clinical trial and ongoing KONFIDENT-S open-label extension trial.

The KONFIDENT phase 3 clinical trial was a randomized, double-blind, 3-way crossover trial evaluating the safety and efficacy of sebetralstat 300 mg and 600 mg versus placebo for the on-demand treatment of HAE in adult and pediatric patients aged 12 years and older.

KONFIDENT-S is an open-label extension trial with numerous real-world elements evaluating the long-term safety and efficacy of sebetralstat for the on-demand treatment of HAE attacks in adults and pediatric patients aged 12 years and older with HAE Type I or Type II.