Could a new pill help people who feel sleepy all day?
Symptom relief
Completed
This study tests an oral drug called SDX (serdexmethylphenidate) to see if it safely reduces excessive daytime sleepiness in adults with idiopathic hypersomnia, a condition where people feel extremely sleepy during the day despite getting enough sleep at night. Participants will …
Phase: PHASE2 • Sponsor: Zevra Therapeutics • Aim: Symptom relief
Last updated Jul 02, 2026 00:00 UTC