Phase 3
Completed N=212
Once-Nightly Sodium Oxybate for Treatment of Excessive Daytime Sleepiness and Cataplexy in Narcolepsy
Excessive Daytime Sleepiness · Cataplexy · Narcolepsy
Source: ClinicalTrials.gov NCT02720744 ↗
Enrolled (actual)
212
Serious AEs
0.6%
Results posted
Mar 2022
Primary outcomePrimary: Maintenance of Wakefulness Test (MWT) — 10.8; 4.7 minutes — p=<0.001
◆ Published Evidence
Emerging
3citations · ~2 / year
Efficacy of once-nightly sodium oxybate (FT218) on daytime symptoms in individuals with narcolepsy with or without concomitant alerting agent use: A post hoc analysis from the phase 3 REST-ON trial.
Summary
The purpose of this study is to determine whether once-nightly FT218 is safe and effective for the treatment of excessive daytime sleepiness and cataplexy in subjects with narcolepsy.
Linked Publications (5)
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Efficacy of once-nightly sodium oxybate (FT218) on daytime symptoms in individuals with narcolepsy with or without concomitant alerting agent use: A post hoc analysis from the phase 3 REST-ON trial.
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Weight Loss With Once-nightly Sodium Oxybate for the Treatment of Narcolepsy: Analysis From the Phase III Randomized study Evaluating the efficacy and SafeTy of a ONce nightly formulation of sodium oxybate (REST-ON) Trial.
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Assessing Early Efficacy After Initiation of Once-Nightly Sodium Oxybate (ON-SXB; FT218) in Participants with Narcolepsy Type 1 or 2: A Post Hoc Analysis from the Phase 3 REST-ON Trial.
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Once-Nightly Sodium Oxybate Meets American Academy of Sleep Medicine Criteria for Treatment of Narcolepsy.
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Efficacy of Once-Nightly Sodium Oxybate in Patients with Narcolepsy: Post Hoc Analyses of Sensitivity, Effect Size, and Numbers Needed to Treat from the Phase 3 REST-ON Trial.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Maintenance of Wakefulness Test (MWT) |
10.8; 4.7 | <0.001 sig |
| PRIMARY Proportion of Patients That Were Very Much Improved or Much Improved on Clinical Global Impression of Improvement as Compared to Screening |
72.0; 31.6 | <0.001 sig |
| PRIMARY Number of Cataplexy Attacks at Visit 8 (Week 14) as Compared to Baseline |
-11.5; -4.9 | <0.001 sig |
Eligibility Criteria
Inclusion Criteria
- Male or female subjects 16 years of age or older
- Willing and able to give written informed consent for study participation. For young adults (16 and 17 years old) who have not reached the age of majority they must be capable of giving assent and consent from a legally authorized guardian must be obtained, as required by local laws and regulations
- Documented evidence of a diagnosis of NT1 (type 1 narcolepsy) or NT2 (type 2 narcolepsy) as, in part, determined by an overnight PSG (polysomnography) and next-day MSLT (maintenance of sleep latency test) with 2 or more SOREMPs (sleep onset REM) with mean sleep latency in the pathological range i.e. 10
- For NT1 only, current continuing presence of cataplexy as defined by subject report for the last 3 months
- Subjects may use concomitant stimulants, but must comply with the following:
- They must be on a stable dose of stimulants for at least 3 weeks prior to starting the screening process for this study; AND
- They must use the same stimulant regimen throughout the entire study period, including during screening and posttreatment periods
- They must discontinue all anti cataplexy drugs
- Addition inclusion criteria per protocol
Exclusion criteria
- Any prior use of sodium oxybate is allowed in the study but within the following exclusions:
- Previous dosing must have been limited to no more than 4.5g per night
- Patient should not have taken sodium oxybate for more than 2 weeks.
- All previous dosing must not have occurred within the last year prior to entry to the study.
- Current use of sodium valproate
- Any use of the following prohibited medications for the duration of the clinical study:
- Anticonvulsants
- Clonidine
- SSRIs (selective serotonin re-uptake inhibitors) and serotonin and norepinephrine re-uptake inhibitors (SNRIs)
- MAOIs (monoamine oxidase inhibitors)
- TCAs (tricyclic antidepressants)
- Hypnotics
- Anxiolytics
- Sedating antihistamines
- Antipsychotics
- Other experimental medications designed to treat narcolepsy, cataplexy or any other condition
- Treatment with any investigational products within 3 months before study enrollment
- Any drug known to affect sleep-wake function. Concomitant stimulant use is permitted
- Additional exclusion criteria per protocol
Data sourced from ClinicalTrials.gov (NCT02720744) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.