Recent Updates
Recently added Catalysts

Oveporexton

Phase 3

Narcolepsy Type 1 | Small molecule | Neurology |Takeda Pharmaceutical Company Limited|Last Updated: Aug 31, 2026

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment168

FDA Designations

PRIORITY_REVIEW

Clinical trial landscape

Oveporexton · 1 trial · 1 indication

Phase 3 1
NCT06470828A Study of TAK-861 for the Treatment of Narcolepsy Type 1Narcolepsy Type 1
COMPLETED168 Analytics
PHASE3COMPLETED
A Study of TAK-861 for the Treatment of Narcolepsy Type 1
Narcolepsy Type 1Unlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline to Week 12 in Mean Sleep Latency From the 4 Maintenance of Wakefulness Test (MWT) Wake Trials
Baseline, Week 12

The MWT evaluates a person's ability to remain awake under soporific conditions for a defined period of time. Because there is no biological measure of wakefulness, wakefulness is measured indirectly by the inability or delayed tendency to fall asleep. This tendency to fall asleep is measured via electroencephalography-derived sleep latency in the MWT. The MWT consists of four 40-minute sessions (trials) done 2 hours apart. Sleep latency in each session was recorded. Participants were required to stay awake in between the four sessions. A positive change from baseline indicates an improvement. The linear mixed effects model for repeated measures (MMRM) was used for analysis.

Secondary Endpoints

Change From Baseline to Week 12 in Epworth Sleepiness Scale (ESS) Total Score
Baseline, Week 12
Weekly Cataplexy Rate (WCR) at Week 12
Week 12
Change From Baseline to Week 12 in Mean Number of Lapses on the Psychomotor Vigilance Test (PVT)
Baseline, Week 12
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PlaceboPLACEBO_COMPARATORParticipants received oveporexton (OVE)-matching placebo tablets, orally, for 12 weeks.
OVE 1 mg BIDEXPERIMENTALParticipants received OVE tablets, 1 milligram (mg), orally, for 12 weeks.
OVE 2 mg BIDEXPERIMENTALParticipants received OVE tablets, 2 mg, orally, for 12 weeks.

Interventions

NameTypeDescription
OveporextonDRUGOral tablet.
PlaceboDRUGOVE-matching placebo tablet.
Unlock Study Design Details

Eligibility Criteria

Age Range16 Years to 70 Years
SexALL
Healthy VolunteersNo
Study Sites53

Inclusion Criteria: 1. The participant has a body mass index (BMI) within the range 18 to 40 kilograms per meter square (kg/m\^2). 2. The participant has an International Classification of Sleep Disorders, Third Edition (ICSD-3) or International Classification of Sleep Disorders, Third Edition, Tex...

Countries:United StatesCanadaFranceGermanyItalyJapanNetherlandsNorwaySpainSwitzerlandUnited Kingdom
Unlock Eligibility Criteria