Clinical trial • Phase II|Phase IV • Psychiatry

SODIUM OXYBATE for Sleep disturbance

Phase II|Phase IV trial of SODIUM OXYBATE for Sleep disturbance.

Overview

Trial Therapeutic Area
Psychiatry
Trial Disease
Sleep disturbance
Trial Stage
Phase II|Phase IV
Drug Modality
Small molecule

Key dates

Initial CTIS Submission Date
19-12-2025
First CTIS Authorization Date
28-04-2026

Trial design

Randomised, placebo: nacl 0.9% (placebo). test product: gamma-oh 200 mg/ml solution injectable (iv) (sodium oxybate) — max daily dose reported 9.5 g; specific dosing schedule not specified in available data.-controlled Phase II|Phase IV trial across 1 site in France.

Randomised
Yes
Comparator
Placebo: NaCl 0.9% (placebo). Test product: GAMMA-OH 200 mg/ml solution injectable (IV) (sodium oxybate) — max daily dose reported 9.5 g; specific dosing schedule not specified in available data.
Target Sample Size
24
Trial Duration For Participant
1

Eligibility

Recruits 24 Vulnerable populations are not selected. Patients under legal protection (guardianship, curatorship, or judicial protection) are excluded. Informed consent must be obtained from the patient (subject information and informed consent form available for adults)..

Pregnancy Exclusion
Positive pregnancy test for women of childbearing age or breastfeeding
Vulnerable Population
Vulnerable populations are not selected. Patients under legal protection (guardianship, curatorship, or judicial protection) are excluded. Informed consent must be obtained from the patient (subject information and informed consent form available for adults).

Inclusion criteria

  • {"criterion_text":"- Aged 18 years or older"}
  • {"criterion_text":"- Hospitalized in the ICU for more than 48 hours"}
  • {"criterion_text":"- Informed consent obtained from the patient"}

Exclusion criteria

  • {"criterion_text":"- Unstable patient"}
  • {"criterion_text":"- Lack of social security or on AME (state medical aid)"}
  • {"criterion_text":"- Participation in another interventional clinical trial related to the management of sleep disorders, delirium, or sedation in the ICU."}
  • {"criterion_text":"- Known allergy to Gamma-Hydroxybutyrate or any of the exipients"}
  • {"criterion_text":"- Technical impossibility of performing polysomnography"}
  • {"criterion_text":"- Positive pregnancy test for women of childbearing age or breastfeeding"}
  • {"criterion_text":"- Patient already included in this study"}
  • {"criterion_text":"- History of chronic alcoholism"}
  • {"criterion_text":"- Uncontrolled epilepsy despite appropriate antiepileptic treatment"}
  • {"criterion_text":"- Recent head trauma or neurological injury"}
  • {"criterion_text":"- Severe hypertension: SBP > 180 mmHg despite antihypertensive treatment"}
  • {"criterion_text":"- Hypokalemia < 3.5 mmol/L despite potassium supplementation"}
  • {"criterion_text":"- Patients with known or suspected succinic semialdehyde dehydrogenase (SSADH) deficiency, given the risk of GHB accumulation due to impaired endogenous metabolism"}
  • {"criterion_text":"- Patients receiving opioids or barbiturates at inclusion for non-mechanically ventilated patient"}
  • {"criterion_text":"- Patients presenting with hypernatraemia (sodium > 145 mmol/L) or hyperchloraemia (chloride > 110 mmol/L) at inclusion"}
  • {"criterion_text":"- Patients with hepatic impairment (Child-Pugh B or C)"}
  • {"criterion_text":"- Cardiac conduction disorder"}
  • {"criterion_text":"- Obstructive sleep apnea syndrome"}
  • {"criterion_text":"- Sodium restriction: Salt intake < 3g/24h"}
  • {"criterion_text":"- Deep sedation defined by a RASS score < -2"}
  • {"criterion_text":"- Presence of mental confusion: Positive CAM-ICU"}
  • {"criterion_text":"- Moribund patient or high likelihood of death within 48 hours"}
  • {"criterion_text":"- Legal protection: guardianship, curatorship, or judicial protection"}
  • {"criterion_text":"- Patients receiving barbiturates at inclusion"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- The primary endpoint is the duration (in minutes) of deep slow-wave sleep (N3 stage) based on polysomnographic recordings","definition_or_measurement_approach":"Measured by polysomnographic recordings (duration in minutes of N3 stage)"}

Secondary endpoints

  • {"endpoint_text":"- 1) Quantity and quality of nocturnal sleep. •Sleep onset latency •\tTotal sleep time •Duration and percentage of N1 stage (sleep onset). •\tDuration and percentage of N2 stage (light slow-wave sleep). •\tPercentage of N3 stage (deep slow-wave sleep). •\tDuration and percentage of Rapid Eye Movement sleep (REM). •\tQuantification of intra-sleep wakefulness. •\tQuantification of atypical sleep. •Quantification of pathological wakefulness •Quantification of micro-awakenings. •\tSleep efficiency","definition_or_measurement_approach":"Evaluated by questionnaire (Richard-Campbell sleep questionnaire) and polysomnography; includes sleep onset latency, total sleep time, stage durations/percentages, intra-sleep wakefulness, atypical sleep, micro-awakenings, sleep efficiency."}
  • {"endpoint_text":"- Quality of daytime alertness: •\tDaytime vigilance score (Karolinska Sleepiness scale) •\tAverage sleep latency during the Maintenance of Wakefulness Test (MWT) the morning after the study night","definition_or_measurement_approach":"Daytime vigilance assessed by Karolinska Sleepiness Scale and average sleep latency measured by Maintenance of Wakefulness Test (MWT)."}
  • {"endpoint_text":"- Analgesic consumption and participation in rehabilitation: •Morphine equivalent quantification •Assessment of rehabilitation participation","definition_or_measurement_approach":"Analgesic consumption quantified as morphine-equivalent; participation in rehabilitation assessed by predefined participation metrics."}
  • {"endpoint_text":"- Evaluation of adverse events, particularly hypokalemia, hypernatremia, mental confusion, agitation, arterial hypertension, or bradycardia","definition_or_measurement_approach":"Assessment and recording of adverse events, with focus on listed events (hypokalemia, hypernatremia, mental confusion, agitation, arterial hypertension, bradycardia)."}

Recruitment

Planned Sample Size
24
Recruitment Window Months
17
Consent Approach
Informed consent must be obtained from the patient. Subject information and informed consent form for adults are available (document L1_SIS and ICF adults). Documents/translations available in French. Patients under legal protection are excluded.

Geography

Total Number Of Sites
1
Total Number Of Participants
24

France

Earliest CTIS Part Ii Submission Date
02-04-2026
Latest Decision Or Authorization Date
28-04-2026
Processing Time Days
26
Number Of Sites
1
Number Of Participants
24

Sites

Site Name
Assistance Publique Hopitaux De Paris
Department Name
Intensive Care Unit
Principal Investigator Name
Florian BLANCHARD
Principal Investigator Email
florian.blanchard@aphp.fr
Contact Person Name
Florian BLANCHARD
Contact Person Email
florian.blanchard@aphp.fr

Sponsor

Primary sponsor

Full Name
Assistance Publique Hopitaux De Paris
Organisation Type
Hospital/Clinic/Other health care facility
Country Of Registered Address
France

Investigational products

Investigational Product Name
GAMMA-OH 200 mg/ml, solution injectable (IV)
Active Substance
SODIUM OXYBATE
Modality
Small molecule
Routes Of Administration
Intravenous
Route
Intravenous
Authorisation Status
Authorised (marketing authorisation number 560 739-1, France)
Maximum Dose
9.5 g per day
Investigational Product Name
NaCl 0.9%
Modality
Small molecule

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