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TAK-861 for Narcolepsy

Phase 2
Waitlist Available
Research Sponsored by Takeda
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Timeline
Screening 3 weeks
Treatment Varies
Follow Up baseline up to approximately 16 weeks
Awards & highlights

Summary

This trial will test a new drug (TAK-861) to see if it can help reduce symptoms of narcolepsy. 100 people worldwide will take part in the trial.

Who is the study for?
Adults aged 18-70 with narcolepsy type 1 confirmed by sleep tests, a BMI of 18-40 kg/m^2, and specific genetic markers or low levels of the brain hormone orexin. Excluded are those with significant medical conditions like heart disease, liver or thyroid issues, history of cancer within five years (except certain skin cancers), head trauma, seizures, stroke risks, infectious diseases like hepatitis B/C or HIV, poor kidney function or high liver enzyme levels.Check my eligibility
What is being tested?
The study is testing TAK-861 to see if it improves daytime sleepiness and cataplexy in people with narcolepsy. Participants will randomly receive either TAK-861 or a placebo for up to 12 weeks across various regions globally. Afterward, they may join an extension study where everyone gets TAK-861.See study design
What are the potential side effects?
While the trial doesn't explicitly list side effects for TAK-861 since it's under investigation, common side effects for narcolepsy medications can include headache, nausea, dizziness and irritability. The exact side effects will be monitored throughout the trial.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~baseline up to approximately 16 weeks
This trial's timeline: 3 weeks for screening, Varies for treatment, and baseline up to approximately 16 weeks for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Change from Baseline to Week 8 in Mean Sleep Latency from the Maintenance of Wakefulness Test (MWT)
Secondary outcome measures
Change from Baseline to Week 8 in Epworth Sleepiness Scale (ESS) Total Score
Occurrence of at Least One Related Treatment-emergent Adverse Event (TEAE)
Weekly Cataplexy Rate at Week 8

Trial Design

5Treatment groups
Experimental Treatment
Placebo Group
Group I: TAK-861 Dose 4Experimental Treatment1 Intervention
Participants will receive TAK-861 dose 4, orally, from Day 1 up to Weeks 8 or 12.
Group II: TAK-861 Dose 3Experimental Treatment1 Intervention
Participants will receive TAK-861 dose 3, orally, from Day 1 up to Weeks 8 or 12.
Group III: TAK-861 Dose 2Experimental Treatment1 Intervention
Participants will receive TAK-861 dose 2, orally, from Day 1 up to Weeks 8 or 12.
Group IV: TAK-861 Dose 1Experimental Treatment1 Intervention
Participants will receive TAK-861 dose 1, orally, from Day 1 up to Weeks 8 or 12.
Group V: PlaceboPlacebo Group1 Intervention
Participants will receive TAK-861 matching placebo tablets, orally, from Day 1 up to Weeks 8 or 12.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
TAK-861
2023
Completed Phase 2
~190

Research Highlights

Information in this section is not a recommendation. We encourage patients to speak with their healthcare team when evaluating any treatment decision.
Mechanism Of Action
Side Effect Profile
Prior Approvals
Other Research
Common treatments for Narcolepsy often target the central nervous system to alleviate symptoms such as excessive daytime sleepiness and cataplexy. Stimulants like modafinil and amphetamines increase wakefulness by enhancing dopamine and norepinephrine activity. Sodium oxybate, another treatment, improves nighttime sleep and reduces cataplexy by acting on GABA receptors. Orexin receptor agonists, such as TAK-861, aim to mimic the action of orexin, a neuropeptide that regulates wakefulness and REM sleep. These treatments are crucial for Narcolepsy patients as they address the underlying neurochemical imbalances, thereby improving daily functioning and quality of life.
[Roles of orexin and effects of orexin receptor antagonists].The effect of insomnia definitions, terminology, and classifications on clinical practice.

Find a Location

Who is running the clinical trial?

TakedaLead Sponsor
1,213 Previous Clinical Trials
4,187,041 Total Patients Enrolled
8 Trials studying Narcolepsy
888 Patients Enrolled for Narcolepsy
Study DirectorStudy DirectorTakeda
1,230 Previous Clinical Trials
500,978 Total Patients Enrolled
5 Trials studying Narcolepsy
529 Patients Enrolled for Narcolepsy

Media Library

Placebo (Unknown) Clinical Trial Eligibility Overview. Trial Name: NCT05687903 — Phase 2
Narcolepsy Research Study Groups: TAK-861 Dose 1, TAK-861 Dose 2, TAK-861 Dose 3, TAK-861 Dose 4, Placebo
Narcolepsy Clinical Trial 2023: Placebo Highlights & Side Effects. Trial Name: NCT05687903 — Phase 2
Placebo (Unknown) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05687903 — Phase 2
~45 spots leftby Jul 2025