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, […]
Tag: OREXIN
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 […]
WAKIX Revenue to Exceed $1B in 2026, Orexin-2 Receptor Agonist in Pipeline
Harmony Biosciences, has announced strong preliminary, unaudited net product revenue for Q4 and full year 2025 of approximately $243 million and $868 million, respectively. The company continues to build on six consecutive years of revenue growth. On track to extend the pitolisant franchise, Harmony fortifies its profile as a profitable, […]
Eisai Presents Clinical Study Results of Novel Orexin Receptor Agonist E2086 for Narcolepsy at World Sleep 2025
Eisai Co., Ltd. announced today that the results from a Phase Ib clinical trial (NCT06462404) of its in-house developed novel selective orexin 2 receptor agonist E2086 have been presented at the World Sleep 2025 congress, held in Singapore from September 5 to 10. These data demonstrate that once-daily dosing of […]
Takeda Presents Orexin Data from Landmark Oveporexton (TAK-861) Phase 3 Program in Narcolepsy Type 1 at World Sleep 2025
Takeda will present data from two global Phase 3 double-blind, placebo-controlled studies of oveporexton (TAK-861)1, a potential first-in-class investigational oral orexin receptor 2 (OX2R)-selective agonist in narcolepsy type 1 (NT1), during multiple oral presentations at the World Sleep 2025 Congress in Singapore. Both the FirstLight (TAK-861-3001) and RadiantLight (TAK-861-3002) […]
Illuminating Narcolepsy’s Neural Pathways
Sleep and wakefulness are carefully balanced by a network of brain regions. Yet for many years, scientists couldn’t pinpoint exactly which neurons regulated sleep state transitions. New research tools and a deeper understanding of brain signaling have led to new discoveries in dopamine and norepinephrine signaling, offering novel insights into […]
Phase 2 Study of Once-Daily Alixorexton in Patients With Narcolepsy Type 1
Alkermes plc today announced positive topline results from the randomized double-blind treatment period of the Vibrance-1 phase 2 study evaluating alixorexton in patients with narcolepsy type 1 (NT1). Alixorexton, formerly referred to as ALKS 2680, is the company’s novel, investigational, oral orexin 2 receptor (OX2R) agonist in phase 2 development as […]
Nxera Pharma Receives $4.8M Milestone Payment from Centessa for ORX142 Trial
Nxera Pharma Co., Ltd. today announces that it will receive US$4.8 million in milestone payments from Centessa Pharmaceuticals pursuant to its research collaboration with Centessa. The milestones were achieved as Centessa initiated clinical development of ORX142, its second novel orexin receptor 2 (OX2R) agonist, following the recent clearance of an […]
The Diagnostic Journey for Narcolepsy
In previous editions, we’ve talked a lot about how diagnosis is only the first part of the journey with narcolepsy. It’s true that there are many pieces to managing the disorder that follow, but that diagnosis is something we really want to hone in on in this edition. The information […]











