- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02055898
SWS And Daytime Functioning in Chronic FatiguE Syndrome (SAFFE) (SAFFE)
Slow-wave Sleep and Daytime Functioning in Chronic Fatigue Syndrome: Effects of Sodium Oxybate
The investigators wish to investigate whether enhancement of SWS, which is seen after a drug called sodium oxybate, reduces the impact of sleep disruption in CFS on daytime function, specifically sleepiness and mental performance. This is a safe and well-tolerated drug that is licensed for excessive daytime sleepiness (EDS) and cataplexy associated with narcolepsy.
The investigators will study 12 patients diagnosed with CFS using international diagnostic guidelines. The investigators will record overnight sleep with EEG (brainwave) measurement on the 1st and 4th nights of a 4 night period during which sodium oxybate and placebo will be taken nightly, and the investigators will measure next-day sleepiness, mental performance and fatigue, and compare drug and placebo nights.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Phase 4
Contacts and Locations
Study Locations
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London, United Kingdom, W12 0NN
- Wellcome CRF, Imperial College, Hammersmith Campus
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion criteria
- Meeting criteria for CFS according to both the revised CDC (Fukuda 5) and Canadian diagnostic systems.
- Aged 25-65.
- Good grasp of the English language.
Exclusion criteria
- Taking any of the following medication: opioids, tramadol, phenytoin, valproate, ethosuximide, benzodiazepines, zolpidem, zopiclone, zaleplon, antidepressant except <30mg amitriptyline, or any other medications likely to interact with sodium oxybate or with sleep in the opinion of the investigators.
- Current major psychiatric disorder.
- Unusual sleep schedule; (bedtime routines that fall outside 9 p.m. to 10 a.m.; usual time in bed > 12 hours).
- Pregnancy, lactation or being female and not using reliable contraception.
- Relevant abnormal clinical findings at screening visit.
- Taken alcohol in the 24 hours before each study visit or drugs of abuse in the week before each study visit
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: Placebo first, then sodium oxybate
Subjects received a single dose of placebo comparator (fresh potable water) at bedtime on 4 nights during an inpatient stay of 5 days in the research centre.
This was followed by an interval of at least 2 weeks.
They were then admitted again and received a single dose of sodium oxybate (3.0g as liquid) at bedtime for 4 nights
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Other Names:
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Experimental: Sodium oxybate first, then placebo
Subjects received a single dose of sodium oxybate (3.0g as liquid) at bedtime on 4 nights during an inpatient stay of 5 days in the research centre.
This was followed by an interval of at least 2 weeks.
They were then admitted again and received a single dose of placebo comparator (fresh potable water) at bedtime for 4 nights
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Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
EEG Slow Wave Activity During Sleep
Time Frame: night 1
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Total power in 0.5-4Hz band in microvolts squared per Hertz (uV^2/Hz)
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night 1
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EEG Slow Wave Activity During Sleep
Time Frame: night 4
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Total power in 0.5-4Hz band in microvolts squared per Hertz (uV^2/Hz)
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night 4
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Daytime Sleepiness
Time Frame: Day 2
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time to fall asleep in minutes
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Day 2
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Daytime Sleepiness
Time Frame: Day 5
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time to fall asleep in minutes
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Day 5
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: David Nutt, DM FRCPsych, Imperial College London
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Pathologic Processes
- Central Nervous System Diseases
- Nervous System Diseases
- Virus Diseases
- Infections
- Disease
- Musculoskeletal Diseases
- Muscular Diseases
- Neuromuscular Diseases
- Encephalomyelitis
- Syndrome
- Fatigue
- Fatigue Syndrome, Chronic
- Physiological Effects of Drugs
- Central Nervous System Depressants
- Anesthetics, Intravenous
- Anesthetics, General
- Anesthetics
- Adjuvants, Anesthesia
- Sodium Oxybate
Other Study ID Numbers
- SAFFE2012
- 2012-002969-35 (EudraCT Number)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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