Long-term test of TAK-360 in people with narcolepsy or idiopathic hypersomnia
Official title: A Long-term Extension Trial to Evaluate the Safety and Tolerability of TAK-360 in Participants With Selected Central Hypersomnia Conditions
Run by Takeda · NCT07646678 · Data updated 2026-11-12
This study tests TAK-360 over an extended period to see if it is tolerable for people with narcolepsy type 1, narcolepsy type 2, or idiopathic hypersomnia who completed an earlier TAK-360 trial.
Quick facts
| Phase | Phase2; Phase3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 71 Years |
| Sex | All |
| Enrollment | 500 (estimated) |
| Sponsor | Takeda Industry-sponsored |
| Locations | 33 sites (Chula Vista, California and 32 other locations) |
| Status | Recruiting |
| Started | June 11, 2026 |
| Main results expected | June 15, 2031 |
| Study ends | June 15, 2031 |
| Registry record updated | November 5, 2026 |
| Trial ID | NCT07646678 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with confirmed NT1, NT2, or IH who completed a prior TAK-360 treatment period and can comply with trial procedures.
✕Probably not a fit
Participants without improvement or who experience intolerable side effects may not benefit from continued TAK-360 use.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a long-term extension study of TAK-360 in adults with centrally mediated sleep disorders. It aims to evaluate long-term tolerability and safety of TAK-360 compared with placebo in NT1, NT2, and IH after prior treatment exposure. The trial follows participants who completed a parent TAK-360 trial, continuing the same intervention and placebo arms as applicable. Primary goals focus on safety and tolerability during extended use, with secondary observations of duration of wakefulness and daytime functioning in a controlled setting. Sites are located in California and Colorado, led by Takeda, with no additional collaborators reported.
Why it matters
Potential benefit: If successful, TAK-360 could offer sustained symptom relief and improved daytime alertness for people with NT1, NT2, or IH during longer treatment.
How similar studies have gone: Past studies have shown potential tolerability signals for TAK-360 in similar hypersomnia populations, but long-term data are limited, making this LTE trial somewhat exploratory.
Who can join: the full rules
Show full inclusion / exclusion criteria
Key Inclusion Criteria: 1. Participant is willing and able to understand and fully comply with trial procedures and requirements. 2. Participant has a confirmed diagnosis of either NT1, NT2, or IH, and has completed the treatment period of a parent TAK-360 trial. 3. Participant has provided informed consent (that is, in writing, documented via a signed and dated informed consent form (ICF) and any required privacy authorization before the initiation of any trial procedures. Key Exclusion Criteria: 1. Participant has a positive pregnancy test or is lactating/breastfeeding. 2. Participant has a risk of suicide according to endorsement of item 4 or 5 on the Columbia Suicide Severity Rating Scale (C-SSRS). 3. The participant has developed a new medical disorder associated with excessive daytime sleep (EDS). 4. Participant has developed (within the last 6 months) gastrointestinal disease that is expected to influence the absorption of drugs. 5. Participant has developed a new history of seizures. 6. Participant has experienced clinically significant head injury, per investigator opinion. 7. Participant has developed a history of cerebral ischemia, transient ischemic attack (less than \[\<\] 5 years ago), or cerebral haemorrhage. 8. Participant has developed a history of myocardial infarction, clinically significant coronary artery disease, clinically significant angina, clinically significant cardiac rhythm abnormality, or heart failure. 9. The participant has been diagnosed with medically significant thyroid disease, known functional hepatic impairment, or other severe chronic medical condition other than the central hypersomnolence disorder. 10. Participant has developed a history of cancer in the past 5 years.
Where it's running
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Takeda Site 23
Chula Vista, California, United States Recruiting -
Takeda Site 25
Santa Ana, California, United States Recruiting -
Takeda Site 14
Colorado Springs, Colorado, United States Recruiting -
Takeda Site 11
Brandon, Florida, United States Recruiting -
Takeda Site 30
Miami, Florida, United States Recruiting -
Takeda Site 7
Miami, Florida, United States Recruiting
Show 27 more locations
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Takeda Site 18
Winter Park, Florida, United States Recruiting -
Takeda Site 6
Atlanta, Georgia, United States Recruiting -
Takeda Site 32
Bowie, Maryland, United States Recruiting -
Takeda Site 31
Lansing, Michigan, United States Recruiting -
Takeda Site 21
Southfield, Michigan, United States Recruiting -
Takeda Site 9
St Louis, Missouri, United States Recruiting -
Takeda Site 19
Middletown, New Jersey, United States Recruiting -
Takeda Site 24
Denver, North Carolina, United States Recruiting -
Takeda Site 10
Huntersville, North Carolina, United States Recruiting -
Takeda Site 22
Winston-Salem, North Carolina, United States Recruiting -
Takeda Site 2
Cincinnati, Ohio, United States Recruiting -
Takeda Site 4
Cincinnati, Ohio, United States Recruiting -
Takeda Site 8
Columbia, South Carolina, United States Recruiting -
Takeda Site 20
Austin, Texas, United States Recruiting -
Takeda Site 3
San Antonio, Texas, United States Recruiting -
Takeda Site 33
Norfolk, Virginia, United States Recruiting -
Takeda Site 15
Macquarie Park, New South Wales, Australia Recruiting -
Takeda Site 12
Xicheng, Beijing Municipality, China Recruiting -
Takeda Site 5
Guangzhou, Guangdong, China Recruiting -
Takeda Site 16
Zhenzhou, Henan, China Recruiting -
Takeda Site 27
Yokohama, Kanagawa, Japan Recruiting -
Takeda Site 13
Kumamoto, Kumamoto, Japan Recruiting -
Takeda Site 29
Isahaya-shi, Nagasaki, Japan Recruiting -
Takeda Site 28
Urasoe, Okinawa, Japan Recruiting -
Takeda Site 26
Osaka, Osaka, Japan Recruiting -
Takeda Site 1
Shinjuku-ku, Tokyo, Japan Recruiting -
Takeda Site 17
Daegu, Daegu Gwang'yeogsi, South Korea Recruiting
Study contacts
- Study coordinator: Study Director
- Email: medinfoUS@takeda.com
- Phone: +1-877-825-3327
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Long-term ORX750 treatment for people with narcolepsy or idiopathic hypersomnia
This open-label extension will try continued ORX750 treatment in people with narcolepsy or idiopathic hypersomnia who completed the earlier ORX750 parent study.
-
Long-term treatment with ALKS 2680 for narcolepsy and idiopathic hypersomnia
This study is testing how well a new medication called ALKS 2680 works for people with narcolepsy or idiopathic hypersomnia over a long period of time.
-
Testing ORX750 for Narcolepsy and Idiopathic Hypersomnia
This study is testing a new medication called ORX750 to see if it can help people with narcolepsy or idiopathic hypersomnia feel more awake and improve their daily lives.
-
Test of Cleminorexton vs placebo for central hypersomnolence in NT1/NT2
This study tests cleminorexton to see if it helps daytime sleepiness in adults with Narcolepsy Type 1 or Type 2 compared with a placebo.
-
Understanding how food intake affects sleep in narcolepsy and hypersomnia patients
This study is testing how what people eat affects their sleep and daytime sleepiness in patients with narcolepsy and hypersomnia to find better ways to manage their health.
-
Exploring mind-wandering and its effects in narcolepsy and hypersomnolence
This study is testing how daydreaming affects thinking and creativity in people with narcolepsy and excessive sleepiness.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.