A Study of TAK-861 for the Treatment of Narcolepsy Type 1

Summary

The main aim of this study is to learn how effective TAK-861 is in improving excessive sleepiness during the day (called excessive daytime sleepiness or EDS) after 3 months of treatment. Other aims are to learn how effective TAK-861 is in lowering the number of sudden, unexpected attacks of muscle weakness while staying conscious (cataplexy) in a week; to learn the effect TAK-861 has on participants' ability to maintain attention, participant's overall quality of life, the spectrum of narcolepsy symptoms, and daily life functions; and to learn about the safety of TAK-861.

Timeline

Start

2024-07-02

Primary completion

2025-06-03

Completion

2025-06-03

Drugs

Indications