Defining the impact of improved sleep on cognitive functio

Not Applicable

Completed

• Conditions: Insomnia disorder; Mental and Behavioural Disorders

• Registration Number: ISRCTN89237370
• Lead Sponsor: niversity of Oxford

Brief Summary

2017 protocol in: https://www.ncbi.nlm.nih.gov/pubmed/28623947 2020 results in https://pubmed.ncbi.nlm.nih.gov/32128593/ (added 01/06/2020)

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2016-10-17
• Study Completion: 2018-01-28
• Last Update Posted: 15 June 2020

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 410

Inclusion Criteria

1. Positive screen for probable DSM-5 insomnia disorder using items from the Sleep Condition Indicator (SCI)
2. Endorsement of difficulties with concentration or memory
3. Being aged 25 and above
4. Reliable internet access at home or work
5. Being able to read and understand English
6. Currently living in the UK

Exclusion Criteria

1. Additional sleep disorder (e.g. possible obstructive sleep apnoea, restless legs syndrome)
2. Diagnosis of mild cognitive impairment or dementia
3. Psychosis or mania
4. Serious physical health concerns necessitating surgery or with prognosis of <6 months
5. Those undergoing a psychological treatment programme for insomnia with a health professional
6. Habitual night, evening, or rotating shift-workers
7. Those taking prescribed sleeping pills on study entry
8. Those with suicidal ideation

Participants will not be omitted for any other physical or mental health problems providing they report their health to be stable.

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Self-reported cognitive impairment is measured using the British Columbia Cognitive Complaints Inventory (BC-CCI) at baseline, post-treatment (10 weeks) and follow-up (24 weeks)