Takeda announced that the Japanese Ministry of Health, Labour and Welfare (MHLW) approved the use of ORZEYFUL (oveporexton) for the treatment of narcolepsy type 1 (NT1, narcolepsy with cataplexy) in adults. ORZEYFUL is a first-in-class oral orexin receptor 2 (OX2R) agonist and the only medicine indicated in Japan to treat […]
Tag: orexin
U.S. FDA Approves Takeda’s ORZEYFUL, the First and Only Orexin Agonist for Narcolepsy Type 1
Takeda announced that the U.S. Food and Drug Administration (FDA) approved ORZEYFUL™ (oveporexton), an oral orexin receptor 2 (OX2R) agonist, for the treatment of narcolepsy type 1 (NT1, narcolepsy with cataplexy) in adults.* The persistent 24-hour nature of NT1 is driven by orexin deficiency and can severely impact people’s lives. […]
FDA Approves Takeda’s Orzeyful, the First-Ever Orexin Agonist for Narcolepsy Type 1
The U.S. Food and Drug Administration today approved Orzeyful (oveporexton) tablets for the treatment of narcolepsy type 1 in adults. Orzeyful is the first medicine approved for narcolepsy type 1 as a complete disorder — addressing the full range of symptoms that define the condition — and the first to […]
Lundbeck Receives FDA Fast Track Designation for Lu Ah69593 Orexin 2 Receptor Agonist
Lundbeck announced that the U.S. Food and Drug Administration (FDA) has granted Fast Track designation to Lu AH69593, the company’s lead oral orexin 2 receptor agonist and one of several investigational compounds in Lundbeck’s development portfolio for sleep-wake disorders. Lu AH69593 was discovered by Lundbeck and it is presently in […]
Takeda’s ORZEYFUL Approved in China for Narcolepsy Type 1
Takeda China announced that the National Medical Products Administration of China has approved the use of ORZEYFUL (oveporexton) for the treatment of narcolepsy type 1 (NT1) in adolescents aged 16 years and older and adults. Oveporexton is the first oral orexin receptor 2 (OX2R)-selective agonist approved in China and is the […]
New Study: Takeda’s Oveporexton Improved Daily Function, Cognition and Nighttime Sleep for Narcolepsy Type 1
New data presented by Takeda at SLEEP 2026 this week continues to build the case for oveporexton (TAK-861) as a potential disease-modifying treatment for narcolepsy type 1 (NT1). Oveporexton is designed to address the root cause of the disease, targeting the underlying orexin deficiency responsible for NT1. Results from two pivotal […]
Eisai to Begin Enrolling Phase 2 Study in Patients With Narcolepsy
Eisai Inc. announced today that screening for global Study E2086-G000-202 (Study 202) to assess the efficacy, safety and tolerability of E2086, a novel selective orexin-2 receptor, is now registered on ClinicalTrials.gov as NCT07493265. Study sites are also planned for Canada, China, Europe, Japan, and South Korea. Study 202 is a three-period, […]
Lilly to Acquire Centessa to Advance Treatments for Sleep-Wake Disorders
Eli Lilly and Company and Centessa Pharmaceuticals plc, a clinical-stage company developing a new class of medicines for the treatment of excessive daytime sleepiness and other neurological conditions, announced a definitive agreement for Lilly to acquire Centessa. Centessa is advancing a pipeline of orexin receptor 2 (OX2R) agonists designed to […]
Researchers Find Autoimmune Evidence for Narcolepsy
Narcolepsy is a chronic condition in which someone feels excessively sleepy, occasionally falling asleep without warning. This can have a major impact on their daily lives, affecting not only their education and employment, but also their ability to drive, their relationships, and their emotional health. “It’s quite striking when you’re […]
U.S. FDA Accepts New Drug Application and Grants Priority Review for Takeda’s Oveporexton (TAK-861) as a Potential First-in-Class Therapy for Narcolepsy Type 1
Takeda announced that the U.S. Food and Drug Administration (FDA) accepted its New Drug Application (NDA) and granted Priority Review for oveporexton (TAK-861) for the treatment of narcolepsy type 1 (NT1). Oveporexton is an investigational oral orexin receptor 2 (OX2R)-selective agonist designed to address the underlying orexin deficiency that causes […]












