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Completed

NCT Number: NCT06525077

Safety and Efficacy of FT218 in Idiopathic Hypersomnia (REVITALYZ)

This is a double-blind, placebo-controlled, randomized withdrawal, multicenter study of the efficacy and safety of FT218. FT218 drug product is a once-nightly formulation of sodium oxybate for extended-release oral suspension. The study will enroll subjects who are diagnosed with idiopathic hypersomnia. Subjects will be eligible to enroll regardless of current treatment with oxybate therapy or stimulants/alerting agents at study entry. The estimated total duration of study for each subject is approximately 18 weeks, including the Screening period.

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Key information

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Alpine Clinical Research Center, Boulder, Colorado, United States

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

FT218

Drug

Sodium oxybate for extended-release oral suspension

Other names: LUMRYZ

Placebo

Other

Matched placebo equivalent for oral suspension

Primary outcomes

  1. Epworth Sleepiness Scale (ESS)

    Time frame: End of stable dose visit to end of double-blind, randomized withdrawal visit [Week 12 to Week 14; 2 week period]

    Change in total ESS score

Secondary outcomes

  1. Patient Global Impression of change (PGI-C)

    Time frame: End of stable dose visit to end of double-blind, randomized withdrawal visit [Week 12 to Week 14; 2 week period]

    Worsening of idiopathic hypersomnia symptoms as assessed by subject

  2. Idiopathic Hypersomnia Severity Scale (IHSS)

    Time frame: End of stable dose visit to end of double-blind, randomized withdrawal visit [Week 12 to Week 14; 2 week period]

    Change in total IHSS score

  3. Clinical Global Impression of change (CGI-C)

    Time frame: End of stable dose visit to end of double-blind, randomized withdrawal visit [Week 12 to Week 14; 2 week period]

    Worsening of idiopathic hypersomnia symptoms as assessed by clinician

  4. Functional Outcomes of Sleep Questionnaire (FOSQ-10)

    Time frame: End of stable dose visit to end of double-blind, randomized withdrawal visit [Week 12 to Week 14; 2 week period]

    Change in total FOSQ-10 score

Sponsors and collaborators

Lead sponsor

Avadel

Industry

Registry information

Official study title

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

Important dates

Study start
2024
Primary completion
2026
Study completion
2026
First posted
Jul 29, 2024
Registry last updated
May 11, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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