Clinical trial No longer in our active list Phase 3 Interventional Ages 18 to 75

Evaluating FT218 for treating Idiopathic Hypersomnia

Official title: A Double-blind, Placebo-controlled, Randomized Withdrawal, Multicenter Study of the Efficacy and Safety of FT218 in the Treatment of Idiopathic Hypersomnia (IH)

Run by Avadel · NCT06525077 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing a new nighttime medication called FT218 to see if it helps people with idiopathic hypersomnia feel more awake and alert.

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment150 (estimated)
SponsorAvadel
Industry-sponsored
Locations7 sites (Boulder, Colorado and 6 other locations)
Trial IDNCT06525077 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults diagnosed with idiopathic hypersomnia who meet specific eligibility criteria regarding sleep patterns and current treatments.

Probably not a fit

Patients with hypersomnia due to other medical, behavioral, sleep, or psychiatric conditions 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 is a double-blind, placebo-controlled, randomized withdrawal study assessing the safety and efficacy of FT218, a once-nightly formulation of sodium oxybate, in patients diagnosed with idiopathic hypersomnia. Participants will be enrolled regardless of their current treatment with oxybate therapy or stimulants. The study aims to determine the effectiveness of FT218 over an estimated duration of 18 weeks, including a screening period. The trial will take place across multiple centers to gather diverse data on the drug's performance.

Why it matters

Potential benefit: If successful, this treatment could significantly improve the quality of life for patients suffering from idiopathic hypersomnia by providing a more effective management option.

How similar studies have gone: Previous studies on sodium oxybate have shown promising results in treating sleep disorders, suggesting that this approach may be effective.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Primary diagnosis of idiopathic hypersomnia
* Total ESS score at Screening \> 11 if not on prior oxybate
* Average nightly total sleep time of \> 7 hours
* May use stimulants/alerting agents but dose and regimen must have been stable for 2 months prior to Screening, and remain stable until the double-blind, randomized withdrawal visit
* Females of childbearing potential must use highly effective contraception for 2 months prior to Baseline, throughout the study, and for 30 days after the last dose of study drug
* Males with female partners of childbearing potential must use condoms throughout the study and for 30 days after the last dose of study drug
* Willing and able to provide informed consent and comply with the requirements of the study

Exclusion Criteria:

* Pregnant, nursing or lactating females
* Hypersomnia due to another medical, behavioral, sleep, or psychiatric condition
* Untreated or incompletely treated sleep apnea in patients with an apnea-hypopnea index (AHI) ≥ 15 by American Academy of Sleep Medicine (AASM) 1A criteria
* Clinically significant parasomnias
* History or presence of seizures, head trauma, succinic semialdehyde dehydrogenase deficiency, uncontrolled hypothyroidism, and/or significant hepatic impairment
* History or presence of bipolar and related disorders, schizophrenia, schizophrenia spectrum disorders, or other psychotic disorders
* Ongoing or past (within 1 year) major depressive episode
* At risk for suicide or history of suicide attempt
* If not on oxybate at Screening, treatment or planned treatment with any central nervous system (CNS) sedating agents during study
* Current or past substance use disorder (including alcohol or cannabinoids)
* Excessive caffeine consumption (\> 600 mg/day)
* Prior treatment with either FT218 or LUMRYZ

Where it's running

  • Alpine Clinical Research Center
    Boulder, Colorado, United States
    Recruiting
  • Florida Pediatric Institute
    Winter Park, Florida, United States
    Recruiting
  • Clinical Research Institute
    Stockbridge, Georgia, United States
    Recruiting
  • Clinical Neurophysiology Services PC
    Sterling Heights, Michigan, United States
    Recruiting
  • Advanced Respiratory and Sleep Medicine
    Huntersville, North Carolina, United States
    Recruiting
  • Bogan Sleep Consultants
    Columbia, South Carolina, United States
    Recruiting
Show 1 more location
  • Tidewater Physicians Multispecialty Group (TPMG) Clinical Research
    Williamsburg, Virginia, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • 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.

    Recruiting at 33 sites Phase 2/3 Takeda · Chula Vista, California and 32 other locations · NCT07646678

  • 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.

    Recruiting at 15 sites Phase 3 Jazz Pharmaceuticals · Birmingham, Alabama and 14 other locations · NCT07625280

  • 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.

    Recruiting at 42 sites Phase 3 Harmony Biosciences Management, Inc. · Birmingham, Alabama and 41 other locations · NCT07500090

  • 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.

    Recruiting at 24 sites Phase 2 Centessa Pharmaceuticals (UK) Limited · Auburn, Alabama and 23 other locations · NCT07096674

  • 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.

    Recruiting University of Sydney · Macquarie Park, New South Wales · NCT07006233

  • 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.

    Recruiting at 28 sites Phase 2 Takeda · Redwood City, California and 28 other locations · NCT06812078

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.