NCT07646678 A Study of TAK-360 in People With Narcolepsy or Idiopathic Hypersomnia
| NCT ID | NCT07646678 |
| Status | Recruiting |
| Phase | Phase 2, Phase 3 |
| Sponsor | Takeda |
| Condition | Idiopathic Hypersomnia |
| Study Type | INTERVENTIONAL |
| Enrollment | 500 participants |
| Start Date | 2026-06-11 |
| Primary Completion | 2031-06-15 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.
This trial targets 500 participants in total. It began in 2026-06-11 with a primary completion date of 2031-06-15.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
Central hypersomnia conditions are a group of sleeping disorders where the brain has trouble keeping a person awake during the day (called excessive daytime sleepiness or EDS). These conditions usually include narcolepsy (type 1 and 2) and idiopathic hypersomnia (IH). Narcolepsy type 1 (NT1) includes sudden muscle weakness while you stay awake, called cataplexy, often triggered by strong emotions. Narcolepsy type 2 (NT2) does not include cataplexy. People with narcolepsy typically feel refreshed by short naps. People with IH feel extremely sleepy during the day, and do not feel refreshed by sleep. Waking up from sleep is difficult. This is common in the morning and also when waking up from long naps. The study wants to learn about TAK-360 when taken over a long time period; this is called a long-term extension or LTE study. The main aim of this LTE study is to find out how well participants with NT1, NT2, and IH tolerate TAK-360 over a longer period (long-term tolerability) and to learn how safe TAK-360 is when given over a longer period of time (long-term safety). Participants who completed one of the TAK-360 parent studies can join this study if they meet the study rules. Parent studies include TAK-360-2001(NCT06952699), TAK-360-2002 (NCT06812078), or other TAK-360 studies that evaluate the TAK-360 medicine. All participants will receive TAK-360 in this study. They will either receive the same dose as they did in the parent study, or the closest dose available in this LTE study. Participants who received placebo (the placebo looks just like TAK-360 but does not have any medicine in it) in their parent study will receive one of the TAK-360 doses available in this study. Placebo will only be used to not reveal the dose of TAK-360 from parent studies to investigator, participants, and sponsor. Sponsor, investigators and participants will not know which TAK-360 dose was used in the LTE study as long as the parent study is ongoing. The participants will have to visit the clinic multiple times during this study.
Eligibility 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.
Contact & Investigator
Takeda Contact
STUDY DIRECTOR
Takeda
Frequently Asked Questions
Who can join the NCT07646678 clinical trial?
This trial is open to participants of all sexes, aged 18 Years or older, up to 71 Years, studying Idiopathic Hypersomnia. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
What phase is the NCT07646678 trial and what does that mean for participants?
Phase 2 trials evaluate whether the treatment shows signs of effectiveness while continuing to monitor safety. More participants are enrolled than in Phase 1 to help refine the treatment protocol.
Is NCT07646678 currently recruiting?
Yes, NCT07646678 is actively recruiting participants. Contact the research team at medinfoUS@takeda.com for enrollment information.
Where is the NCT07646678 trial being conducted?
This trial is being conducted at Brandon, United States, Miami, United States, Atlanta, United States, St Louis, United States and 9 additional locations.
Who is sponsoring the NCT07646678 clinical trial?
NCT07646678 is sponsored by Takeda. The principal investigator is Takeda Contact at Takeda. The trial plans to enroll 500 participants.