Evaluation of internet cognitive behavioural therapy for insomnia disorder

The comparative efficacy of online cognitive behavioural therapy (CBT) versus online imagery relief therapy (IRT) as treatments for insomnia disorder: a randomised placebo controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN44615689

Enrollment

156

Registered

2011-05-18

Start date

2011-03-01

Completion date

Unknown

Last updated

2015-01-13

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

Conditions

Insomnia disorder Mental and Behavioural Disorders Nonorganic sleep disorders

Interventions

This is a pragmatic, randomised controlled trial comprising three treatment arms: 1. Online cognitive behavioural therapy (CBT) 2. Online IRT (placebo) 3. Waiting list comprising usual care (treatme

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Healthy participants from the community at large (18+ years, either sex) 2. Completed the on-line Great British Sleep Survey (www.sleepio.com) 3. Meet proposed Diagnostic and Statistical Manual of Mental Disorders Fourth Edition (DSM-IV) criteria for insomnia disorder: complaint of poor sleep (difficulty initiating and/or maintaining sleep, early morning wakening, or non-restorative sleep), with daytime consequences for greater than or equal to 3 months

Exclusion criteria

Exclusion criteria: 1. Possible significant mental (e.g. depression) or physical health problems (e.g. cardiovascular disease) 2. Disorders of sleep other than insomnia (e.g. sleep apnoea) 3. Dementia 4. Heavy alcohol use, excluded conservatively 5. Using online screening tools

Design outcomes

Primary

Measure	Time frame
1. Sleep efficiency: this is the percentage of the time spend in bed that the person is asleep 2. Sleep Condition Indicator (SCI), a valid and reliable patient-reported outcome measure which is brief (8-item; range 0 - 32), valid (based on DSM-V) and reliable (a = 0.83). The SCI profiles daytime consequences of poor sleep and classifies clinical sleep status. Total 3. Derived sleep status category (very good, good, average, poor, very poor) 4. Measured at baseline, post-treatment evaluation and the 14 and 20 week follow-up evaluations	—

Measure

Time frame

1. Sleep efficiency: this is the percentage of the time spend in bed that the person is asleep 2. Sleep Condition Indicator (SCI), a valid and reliable patient-reported outcome measure which is brief (8-item; range 0 - 32), valid (based on DSM-V) and reliable (a = 0.83). The SCI profiles daytime consequences of poor sleep and classifies clinical sleep status. Total 3. Derived sleep status category (very good, good, average, poor, very poor) 4. Measured at baseline, post-treatment evaluation and the 14 and 20 week follow-up evaluations

—

Secondary

Measure	Time frame
1. Standard daily sleep diary data (e.g. sleep onset latency, wakeful time after sleep-onset) 2. Depression Anxiety and Stress Scales (DASS) 3. Sleep Disturbance Questionnaire (SDQ) 4. Content of Thoughts Inventory (CTI) 5. Sleep Effort Scale (SES) 6. Descriptive information on demographics and general physical and mental health, including alcohol use and lifestyle 7. CBT user experience and satisfaction 8. Adherence with treatment advice 9. Measured at baseline, post-treatment evaluation and the 14 and 20 week follow-up evaluations	—

Measure

Time frame

1. Standard daily sleep diary data (e.g. sleep onset latency, wakeful time after sleep-onset) 2. Depression Anxiety and Stress Scales (DASS) 3. Sleep Disturbance Questionnaire (SDQ) 4. Content of Thoughts Inventory (CTI) 5. Sleep Effort Scale (SES) 6. Descriptive information on demographics and general physical and mental health, including alcohol use and lifestyle 7. CBT user experience and satisfaction 8. Adherence with treatment advice 9. Measured at baseline, post-treatment evaluation and the 14 and 20 week follow-up evaluations

—

Countries

United Kingdom

Outcome results

None listed

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