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Sleep Matters Trial

Sleep improvement and alleviation of dissociative symptoms: a randomised controlled trial of digital cognitive behavioural therapy for insomnia.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN58986139
Enrollment
85
Registered
2015-04-20
Start date
2015-04-20
Completion date
Unknown
Last updated
2015-07-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

We are studying the relation between insomnia symptoms and dissociative symptoms. Mental and Behavioural Disorders

Interventions

This study aims to explore the causal role of sleep disturbances in the development of dissociative symptoms and their concomitants through a randomised controlled trial. We will use a well-establishe

Sponsors

University of Oxford
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Participant is willing and able to give informed consent for participation in the study. 2. Symptoms of insomnia, as indicated by the SCI 3. Medium-to-high level of dissociativity, as indicated by a score of 17 or more on the DES 4. Age >= 18 years (no upper limit), any gender

Exclusion criteria

Exclusion criteria: None

Design outcomes

Primary

MeasureTime frame
1. To test whether delivering digital CBTi improves insomnia symptoms. Outcome measure is the Sleep Condition Indicator, administered before, during, and after the intervention 2. To test whether sleep improvement (through digital CBTi) can reduce dissociative symptoms. Outcome measures are the Dissociative Experiences Scale, and the Clinician-Administered Dissociative States Scale, administered before, during, and after the intervention

Secondary

MeasureTime frame
1. To determine whether digital CBTi improves negative affect: depression, anxiety, and stress. Outcome measures are the Depression Anxiety Stress Scales (DASS) to measure depression, anxiety, and stress administered before, during, and after the intervention 2. To determine whether changes in anxiety symptoms mediate changes in dissociative symptoms. Current statistical techniques for mediation will be employed, using the primary outcome measures at all time points

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026