Prognosis

Takeda Nears First Therapy for Narcolepsy’s Root Cause

The Takeda Pharmaceutical Co. headquarters in Tokyo.

Photographer: Kiyoshi Ota/Bloomberg

Takeda Pharmaceutical Co.’s experimental narcolepsy drug significantly improved outcome for patients in late-stage clinical trials, and could become the first treatment to target the root cause of the chronic sleep disorder.

Patients who took the drug, called oveporexton, for 12 weeks experienced increased daytime alertness, fewer episodes of sudden muscle tone loss, and an overall improvement in quality of life compared to those given a placebo. The findings were part of studies published at World Sleep Congress held in Singapore, which runs through Sept. 10.