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US FDA approves Takeda’s sleep disorder pill

By Thomson Reuters Aug 5, 2026 | 4:47 PM

Aug 5 (Reuters) – The U.S. Food and Drug Administration approved Takeda Pharmaceuticals’ oral drug for narcolepsy, the health regulator said on ​Wednesday, backing the first treatment that targets ‌all the symptoms of the rare sleep disorder.

Here are more details:

• Narcolepsy type 1 is a rare sleep disorder caused by the loss of brain cells that produce ‌orexin, ​a chemical messenger that regulates ⁠wakefulness, sleep, and ⁠muscle tone.

• The condition – affecting about 120,000 people in the United States, according to Takeda – causes people to experience excessive daytime sleepiness, sudden ​loss of muscle tone, cognitive symptoms and disrupted nighttime sleep.

• Orzeyful, a twice-daily pill, works ⁠by directly targeting the loss ⁠of orexin signaling that causes the ​disease.

• The FDA’s approval was based on data ​from two studies in which patients given Orzeyful ‌showed improvements in their ability to stay awake during the day compared with those given a placebo.

• Previously, there was no approved medicine for ⁠narcolepsy type 1 as a unified disorder, and none acted on the orexin system, the FDA said.

• The ⁠controlled substance ‌classification for Orzeyful is currently under ⁠review by the Drug Enforcement Administration, ​and ‌their ruling is expected within 90 ​days, the ⁠company said.

• After the classification is determined, the drug will be made available through a specialty pharmacy to U.S. healthcare providers and patients, Takeda added.

(Reporting by Sneha S K in Bengaluru; Editing by ​Savio D’Souza)