NCT05870228

Brief Summary

The overall objectives of the study are to:

  1. 1.To assess the feasibility of delivering the Strathclyde Sleep Intervention to adolescents with co-morbid insomnia and mental health attending a mental health services The following feasibility benchmarks will be assessed: recruitment and retention, participant attendance, staff training, intervention fidelity and participant adherence.
  2. 2.To examine participant acceptability. The researchers will conduct qualitative interviews with the participants and delivery staff to examine the acceptability of the programme.
  3. 3.To investigate the preliminary effectiveness by assessing the following: sleep parameters, insomnia symptoms, Circadian phase preference (baseline only) and mental health symptoms. Data will be collected at baseline, post-intervention and 3 month follow-up.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
16

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2023

Geographic Reach
1 country

1 active site

Status
terminated

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 24, 2023

Completed
29 days until next milestone

First Posted

Study publicly available on registry

May 23, 2023

Completed
5 months until next milestone

Study Start

First participant enrolled

October 13, 2023

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
9 months until next milestone

Results Posted

Study results publicly available

September 26, 2025

Completed
Last Updated

September 26, 2025

Status Verified

September 1, 2025

Enrollment Period

1.2 years

First QC Date

April 24, 2023

Results QC Date

April 10, 2025

Last Update Submit

September 5, 2025

Conditions

Keywords

Adolescent SleepInsomniaMental HealthCBT-I

Outcome Measures

Primary Outcomes (3)

  • Number of Adolescent Participants Recruited

    A total of 8 adolescents were referred between October 2023 and October 2024. Of these, 1 was ineligible, 4 declined participation / did not respond, and 3 provided consent and were enrolled.

    1 year

  • Number of Adolescent Participants Who Attend Each Session

    Measured through attendance logs. This outcome reports the number of adolescent participants who completed each session of the 4-session intervention.

    Over 4 session intervention period (1 - 4 months) 1-4 months 1-4 months

  • Intervention Fidelity

    Fidelity was assessed using an intervention delivery checklist. Practitioners were categorised based on whether they delivered the intervention as intended or deviated. Of the 10 practitioners who completed training, only 3 practitioners delivered the intervention, but only 2 submitted fidelity data for this outcome.

    1-4 months

Secondary Outcomes (7)

  • Acceptability of Intervention to Practitioners

    Up to 9 months post-training

  • Sleep Outcomes (Change From Baseline, Post-intervention and Follow-up)

    Baseline (2 weeks before intervention delivery)

  • Insomnia Symptoms Assessed Using Sleep Condition Indicator (Score of <16 Indicates Probable Insomnia, Higher Scores Indicate Better Sleep, Scores Range 0-32) (Change From Baseline, Post-intervention and Follow-up)

    Baseline (2 weeks before intervention) Baseline (2 weeks before intervention) Baseline (2 weeks before intervention)

  • Depression and Anxiety Symptoms Assessed by Revised Child Anxiety and Depression Scale - 25 Item Version (RCADS-25) (Change From Baseline, Post-intervention and Follow-up)

    Baseline (2-weeks before intervention delivery)

  • Anxiety Symptoms Measured by GAD-7 (Change From Baseline, Post-intervention and Follow-up)

    Baseline (2-weeks before intervention delivery)

  • +2 more secondary outcomes

Other Outcomes (1)

  • Staff Satisfaction With Training

    Up to 9 months post-training

Study Arms (1)

Single-arm intervention group

OTHER

Single-arm intervention

Behavioral: Strathclyde Sleep Intervention

Interventions

Manual-based CBT-I

Single-arm intervention group

Eligibility Criteria

Age12 Years - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Adolescents (12-15 years)
  • Meeting thresholds for insomnia disorder (determined by cut-off scores on the 2 item Sleep Condition Indicator (score \<2 indicates probable insomnia)
  • Attending CAMHS for mental health intervention/support
  • Able to engage with intervention protocol

You may not qualify if:

  • Active suicide ideation and/or recent suicidal attempts
  • Contraindicators for components of CBT-I (sleep restriction therapy) including seizure disorders/conditions including epilepsy, bipolar disorder, symptoms of psychosis, obstructive sleep apnea and parasomnias.
  • Diagnosis of Autism Spectrum Disorder, Attention Deficit Hyperactivity Disorder, Foetal Alcohol Spectrum Disorder (Neurodiversity)
  • Those who are currently completing, or have recently completed (in the past 6 months), CBT-I for insomnia elsewhere (or components of CBT-I including e.g. sleep restriction therapy, stimulus control, cognitive techniques). This will only include in-person, one-to-one methods of delivery

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

East Renfrewshire Healthier Minds Team

Glasgow, Lanarkshire, g781sy, United Kingdom

Location

MeSH Terms

Conditions

Sleep Initiation and Maintenance DisordersPsychological Well-Being

Condition Hierarchy (Ancestors)

Sleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesMental DisordersPersonal SatisfactionBehavior

Limitations and Caveats

Recruitment and retention of adolescents was challenging. Key barriers included: most adolescents had diagnosis of NDD (exclusion criteria), time pressure and demands on the services made it difficult to implement. Qualitative feedback only obtained from practitioners, therefore, not able to examine acceptability from adolescents' perspective.

Results Point of Contact

Title
Stephanie McCrory
Organization
University of Strathclyde

Study Officials

  • Leanne Fleming, PhD

    University of Strathclyde

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

April 24, 2023

First Posted

May 23, 2023

Study Start

October 13, 2023

Primary Completion

December 31, 2024

Study Completion

December 31, 2024

Last Updated

September 26, 2025

Results First Posted

September 26, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share

Locations