NCT07418554

Brief Summary

Among the most sensitive and persistent symptoms of post-traumatic stress disorder (PTSD) in children are sleep disturbances in the insomnia spectrum (sleep onset disturbances, fragmented sleep with multiple nocturnal awakening, early morning awakening) as well as nightmares, affecting over 50% of children and adolescents one year after the initial trauma. There are currently no gold standard treatments or pharmacological treatment recommendations specifically for these sleep disturbances in children and adolescents with PTSD, despite the fact that they have a significant effect on daytime functioning and overall mental health of the children and their families. If not treated appropriately, these sleep disturbances in children and adolescents persist over time, and further increase anxiety in children. Sleep disturbances associated with PTSD are predictive of the persistence and long-term outcome of PTSD itself and associated depressive symptomatology, and of a decreased response rate to cognitive-behavioral psychotherapy for PTSD. We have previously shown in an international multicenter study that pediatric prolonged release melatonin (PedPRM) has high beneficial effects on sleep disturbances of the insomnia spectrum in children ages 2-17.5 years with autism spectrum disorder, and consecutive positive effects on children's daytime behavior, including anxiety and depressive symptomatology. Its benefit-risk ratio has proven to be excellent over a 2-year follow-up. Beyond its therapeutic benefit on mental health through improvement of sleep, melatonin may have a direct effect on reducing anxiety levels and overall daytime functioning in children, as well as sleep and daytime function in caregivers. Our study will be the first randomized controlled trial investigating the efficacy of prolonged release melatonin on sleep disturbances in children and adolescents with PTSD, as well as on PTSD symptoms, associated daytime function and overall mental health in these children and their caregivers.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P25-P50 for phase_3

Timeline
29mo left

Started Jan 2027

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 10, 2026

Completed
8 days until next milestone

First Posted

Study publicly available on registry

February 18, 2026

Completed
11 months until next milestone

Study Start

First participant enrolled

January 1, 2027

Expected
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2029

1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2029

Last Updated

February 18, 2026

Status Verified

February 1, 2026

Enrollment Period

2.3 years

First QC Date

February 10, 2026

Last Update Submit

February 10, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Difference in sleep-diary derived total sleep time after 13 weeks of treatment

    At Day 0 and day 92

Study Arms (2)

Active therapy

EXPERIMENTAL

melatonin

Drug: pediatric, prolonged released melatonin

Placebo therapy

PLACEBO COMPARATOR

placebo

Drug: Placebo

Interventions

Initial dosage will be of 2mg, and eventually increased to 5mg at dose optimization visit if no or insufficient improvement has been observed in the first 3 weeks of treatment

Active therapy

Initial dosage will be of 2 tablets, and eventually increased to 5 tablets at dose optimization visit if no or insufficient improvement has been observed in the first 3 weeks of treatment

Placebo therapy

Eligibility Criteria

Age2 Years - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Children and adolescents (2 -17.5 years) with:
  • A diagnosis of post-traumatic stress disorder (PTSD) as defined by DSM-5 (American Psychiatric Association, 2013)
  • Current significant sleep disturbances defined as ≤6 hours of continuous sleep and/or ≥0.5-hour sleep latency from lights-off on 3 out of 5 nights and/or nightmare disorder as defined by the International Classification of Sleep Disorders, Third Edition (ICSD-3, Sateia, 2014), for a minimum 3 months, based on parent report and patient medical history
  • No response to at least 4 weeks of sleep hygiene
  • Negative pregnancy test for females with childbearing potential
  • Written informed consent provided by both parents or a legal guardian, as well as the children / adolescents themselves, if possible
  • Stable doses of non-excluded medications for at least 3 months

You may not qualify if:

  • Known systemic or severe acute disease whose care would hinder attendance at appointments
  • Pregnancy, breastfeeding
  • Known diagnosis of another significant sleep disorder (e.g., moderate to severe sleep apnea)
  • Treatment with any form of melatonin within 2 weeks prior to screening
  • Unresponsiveness to previous prolonged release melatonin within the 2 years prior to the study
  • Known allergy to melatonin or lactose
  • Use of prohibited medication (benzodiazepine, z-drug, antihistaminic, among others) within 2 weeks prior to screening
  • Participation in a clinical trial within the last month prior to the study
  • Transmeridian travel (\> 2 time zones) within the month before the start of the study
  • Females not using contraceptives who are sexually active, pregnant, and/or breastfeeding
  • Other reasons: inability to receive clear information, inability to participate in the entire study, lack of coverage by the social security system, refusal to sign consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hôpitaux Universitaires de Strasbourg

Strasbourg, 67091, France

Location

MeSH Terms

Conditions

Stress Disorders, Post-Traumatic

Condition Hierarchy (Ancestors)

Stress Disorders, TraumaticTrauma and Stressor Related DisordersMental Disorders

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 10, 2026

First Posted

February 18, 2026

Study Start (Estimated)

January 1, 2027

Primary Completion (Estimated)

May 1, 2029

Study Completion (Estimated)

June 1, 2029

Last Updated

February 18, 2026

Record last verified: 2026-02

Locations