Low Sodium Oxybate in Patients With Idiopathic Hypersomnia

NCT ID: NCT05837091

Last Updated: 2025-07-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE4

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-02-14

Study Completion Date

2026-06-30

Brief Summary

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Low sodium oxybate has been approved by the U.S. Food and Drug Administration (FDA) for the treatment of idiopathic hypersomnia. In this study, the researchers want to learn how low sodium oxybate impacts ability of people diagnosed with idiopathic hypersomnia to sleep for long periods of time. In addition, this study will use novel tools to determine when an individual is awake or asleep.

Detailed Description

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Conditions

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Idiopathic Hypersomnia

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Low Soduim Oxybate for Idiopathic Hypersomnia

Subjects prescribed with low sodium oxybate for idopathic hypersomnia will have a 24-hour polysomnography, wear an Axivity wristband and Nextsense EEG earbuds to evaluate total sleep time.

Group Type EXPERIMENTAL

Low Sodium Oxybate

Intervention Type DRUG

Titrated according to standard of care and continued on stable dose for 3 months

24-hour polysomnography

Intervention Type DIAGNOSTIC_TEST

Performed in a sleep study lab, recording of body functions including brain activity, eye movements, muscle activity, heart rhythm and blood oxygen levels while asleep and awake for a 24-hour period

Nextsense EEG earbuds

Intervention Type DEVICE

Ear buds used to record sleep staging worn for a 24-hours period

Axivity device

Intervention Type DEVICE

Wristband that records activity level worn for approximately one month to track sleep and steps/activity.

Interventions

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Low Sodium Oxybate

Titrated according to standard of care and continued on stable dose for 3 months

Intervention Type DRUG

24-hour polysomnography

Performed in a sleep study lab, recording of body functions including brain activity, eye movements, muscle activity, heart rhythm and blood oxygen levels while asleep and awake for a 24-hour period

Intervention Type DIAGNOSTIC_TEST

Nextsense EEG earbuds

Ear buds used to record sleep staging worn for a 24-hours period

Intervention Type DEVICE

Axivity device

Wristband that records activity level worn for approximately one month to track sleep and steps/activity.

Intervention Type DEVICE

Other Intervention Names

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Xywav Calcium, Magnesium, Potassium, and Sodium Oxybates

Eligibility Criteria

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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
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

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Chad M. Ruoff

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Chad Ruoff, MD

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

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Mayo Clinic Arizona

Phoenix, Arizona, United States

Site Status RECRUITING

Stanford University

Redwood City, California, United States

Site Status RECRUITING

Mayo Clinic Florida

Jacksonville, Florida, United States

Site Status RECRUITING

Beth Israel Deaconess Medical Center

Boston, Massachusetts, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Gabbi Montefiore

Role: CONTACT

(480)574-1288

Arleth Valencia

Role: CONTACT

(480)342-6487

Facility Contacts

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Lupe (Ray) Canez

Role: primary

(480) 574-2753

Miran Cho

Role: primary

(650)503-3489

Wesley Dillinger

Role: primary

(904)953-3626

Phoebe Aney

Role: primary

(617) 975-7568

Related Links

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Other Identifiers

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21-006906

Identifier Type: -

Identifier Source: org_study_id

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