Evaluating FT218 for treating Idiopathic Hypersomnia

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

Phase 3 Interventional Avadel · NCT06525077

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

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.

Who should consider this trial

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

Not a fit: Patients with hypersomnia due to other medical, behavioral, sleep, or psychiatric conditions may not benefit from this study.

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

Eligibility criteria

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 this trial is running

Boulder, Colorado and 6 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Idiopathic Hypersomnia
Last reviewed 2026-06-09 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.