Using low sodium oxybate to improve sleep in patients with idiopathic hypersomnia
Official title: Impact of Low Sodium Oxybate on Total Sleep Time in Patients With Idiopathic Hypersomnia
Run by Mayo Clinic · NCT05837091 · Data updated 2026-11-12
This study is testing if low sodium oxybate can help people with idiopathic hypersomnia sleep better and stay asleep longer.
Quick facts
| Phase | Phase 4 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 65 Years |
| Sex | All |
| Enrollment | 30 (estimated) |
| Sponsor | Mayo Clinic Academic / other |
| Locations | 4 sites (Phoenix, Arizona and 3 other locations) |
| Status | Recruiting |
| Started | February 14, 2024 |
| Main results expected | January 29, 2027 |
| Study ends | June 2027 |
| Registry record updated | May 12, 2026 |
| Trial ID | NCT05837091 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults aged 18 to 65 with a primary diagnosis of idiopathic hypersomnia and specific sleep duration and sleepiness criteria.
✕Probably not a fit
Patients who do not meet the eligibility criteria or have not been recommended low sodium oxybate by a clinical sleep specialist may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial investigates the effects of low sodium oxybate on individuals diagnosed with idiopathic hypersomnia, focusing on their ability to maintain prolonged sleep. The study employs advanced monitoring techniques, including 24-hour polysomnography and innovative EEG earbuds, to accurately assess sleep patterns and wakefulness. Participants will be closely monitored to evaluate the efficacy of the treatment as part of their routine medical care, with adjustments made by clinical sleep specialists.
Why it matters
Potential benefit: If successful, this treatment could significantly enhance the quality of sleep and overall well-being for patients suffering from idiopathic hypersomnia.
How similar studies have gone: Previous studies have shown positive outcomes with low sodium oxybate for sleep disorders, indicating a promising approach for idiopathic hypersomnia.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Primary diagnosis of IH, according to ICSD-3 criteria (does not require MSLT) 2. Subjects aged 18 - 65 years 3. BMI between 18 and 35 kg/m2 4. Self-reported sleep duration ≥ 9 hours most days including daytime naps/sleep based upon at least 10/14 days of completed sleep diary entries 5. Epworth Sleepiness Scale (ESS) ≥ 10 (required at pre-screening visit only) 6. Recommended LSO by a clinical sleep specialist as part of routine medical care. The clinical sleep specialist will be responsible for titrating LSO according to standard of care. 7. Subject must be willing to postpone LSO therapy until all baseline assessments completed 8. If treated with wake promoting agents, traditional stimulants and/or antidepressant(s), a stable dose and regimen will be required for at least 2 months before study entry and throughout the main study 9. Have used a medically acceptable method of contraception for at least 2 full menstrual cycles before participating in this study and consent to use a medically acceptable method of contraception from the first dose of study drug, throughout the entire study period, and for 30 days after the last dose of study drug. Exclusion Criteria: 1. Succinic semialdehyde dehydrogenase deficiency, porphyria 2. Other central nervous system diseases: neurodegenerative diseases, , seizure disorders or history of head trauma associated with loss of consciousness 3. Lifetime history of suicide attempt or suicidal ideation in the past six months, including answer to question #9 on PHQ-9 ≥1; PHQ-9 total score \> 10; prior history of psychotic episodes; active major depressive disorder 4. Change to psychiatric medication(s)/stimulant(s) within last 3 months 5. History of chronic alcohol or drug abuse within the prior 12 months 6. Malignant neoplastic disease requiring therapy within the prior 12 months 7. Heart failure, severe hypertension or other cardiovascular disease compromising the patient's well-being or ability to participate in this study 8. Renal or hepatic impairment 9. Compromised respiratory function (e.g., history of COPD, pulmonary hypertension, and/or poorly controlled asthma) 10. Diagnosis of sleep-related breathing disorders (AHI ≥ 15 events/h using 4 % AHI) or high suspicion for sleep disordered breathing 11. Any sleep apnea treatment (e.g., Positive Airway Pressure (PAP) therapy, oral appliance therapy, etc.) 12. No regular sleep at night: shift work or other continuous, non-disease-related life conditions 13. Participation in another study of an investigational drug within the 28 days prior to Screening visit or currently 14. Pregnant and/or breast-feeding 15. Ear jewelry and/or piercings that subject not willing to/unable to remove 16. Use of device/implant that may interfere with the study devices/procedures (e.g., vagal nerve stimulator) 17. Smoke and/or use of smokeless tobacco products 18. Subjects who, in the opinion of the investigator(s), may not be suitable for the study
Where it's running
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Mayo Clinic Arizona
Phoenix, Arizona, United States Recruiting -
Stanford University
Redwood City, California, United States Recruiting -
Mayo Clinic Florida
Jacksonville, Florida, United States Recruiting -
Beth Israel Deaconess Medical Center
Boston, Massachusetts, United States Recruiting
Study contacts
- Principal investigator: Chad Ruoff, MD — Mayo Clinic
- Study coordinator: Gabbi Montefiore
- Email: montefiore.gabrielle@mayo.edu
- Phone: (480)574-1288
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Long-term test of TAK-360 in people with narcolepsy or idiopathic hypersomnia
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.
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Expanded-dosing Xywav vs placebo in narcolepsy and IH
This study tests whether expanded nightly dosing of Xywav helps adults with narcolepsy or idiopathic hypersomnia, compared with placebo.
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Phase 3 HBS-301 for idiopathic hypersomnia
This trial will test whether the oral medicine HBS-301 helps adults with idiopathic hypersomnia reduce daytime sleepiness, sleep inertia, and fatigue.
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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.
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Diet changes to reduce sleepiness in narcolepsy and idiopathic hypersomnia
This project will try whether a 12-week whole-food ketogenic diet versus an isocaloric standard whole-food diet reduces daytime sleepiness and improves quality of life in adults with narcolepsy or idiopathic hypersomnia.
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Evaluating TAK-360 for daytime sleepiness in adults with Idiopathic Hypersomnia
This study is testing a new medication called TAK-360 to see if it can help adults with Idiopathic Hypersomnia feel less sleepy during the day.
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.