REPAIR Sleep Study
Testing Cognitive Behavioral Therapy for Insomnia (CBT-I) on Dyadic Sleep in Dementia: A Randomized Control Trial
2 other identifiers
interventional
120
0 countries
N/A
Brief Summary
The goal of this study is to learn whether a videoconference-delivered CBT-I program (REPAIR Sleep) can improve sleep and psychological well-being in caregiver-PLwD dyads. The main questions it aims to answer are:
- Does REPAIR Sleep improve insomnia severity and other sleep outcomes?
- Does REPAIR Sleep improve psychological outcomes such as mood, stress, and quality of life? Researchers will compare REPAIR Sleep with Healthy Living to see whether REPAIR Sleep leads to greater improvements. Participants will:
- Attend five weekly virtual sessions
- Complete sleep diaries and questionnaires
- Wear an actigraphy device
- Complete follow-up assessments over 9 months
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Jul 2026
Typical duration for not_applicable
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
April 27, 2026
CompletedFirst Posted
Study publicly available on registry
May 7, 2026
CompletedStudy Start
First participant enrolled
July 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2028
Study Completion
Last participant's last visit for all outcomes
June 1, 2028
May 7, 2026
May 1, 2026
1.9 years
April 27, 2026
May 1, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in insomnia severity
Change in insomnia symptom severity, measured using the Insomnia Severity Index (ISI), a 7-item validated self-report scale assessing difficulty falling asleep, staying asleep, early awakenings, satisfaction with sleep, interference with daily functioning, noticeability of impairment, and distress caused by sleep problems. Scores range from 0-28, with higher scores indicating more severe insomnia symptoms.
Baseline - Day 1, 1-week post-intervention - Week 8 , 3-months post intervention - Week 20, 6-months post intervention- Week 32
Secondary Outcomes (7)
Change in total sleep time (TST)
Baseline - Day 1, 1-week post-intervention - Week 8 , 3-months post intervention - Week 20, 6-months post intervention- Week 32
Change in sleep efficiency (SE)
Baseline - Day 1, 1-week post-intervention - Week 8 , 3-months post intervention - Week 20, 6-months post intervention- Week 32
Nocturnal awakenings
Baseline - Day 1, 1-week post-intervention - Week 8 , 3-months post intervention - Week 20, 6-months post intervention- Week 32
Change in Quality of life
Baseline - Day 1, 1-week post-intervention - Week 8 , 3-months post intervention - Week 20, 6-months post intervention- Week 32
Depressive symptoms
Baseline - Day 1, 1-week post-intervention - Week 8 , 3-months post intervention - Week 20, 6-months post intervention- Week 32
- +2 more secondary outcomes
Study Arms (2)
REPAIR Sleep
EXPERIMENTALCaregiver-PLwD dyads randomized to this arm will receive REPAIR Sleep, a 5-week, 60-minute, videoconference-delivered Cognitive Behavioral Therapy for Insomnia (CBT-I) intervention. Sessions are delivered once weekly to both members of the dyad together. The intervention targets behavioral and cognitive factors that perpetuate insomnia and is tailored to the needs of caregivers and persons living with dementia. Participants will: * Attend five weekly 60-minute virtual sessions with a trained interventionist * Review and complete sleep diaries and daily adherence checklists * Wear a wrist actigraph (CentrePoint Insight Watch) for 2 weeks before and during the 5-week intervention * Practice CBT-I components between sessions (e.g., stimulus control, sleep compression, relaxation, cognitive strategies, sleep hygiene)
Healthy Living
ACTIVE COMPARATORCaregiver-PLwD dyads randomized to this arm will receive Healthy Living, a 5-week, 60-minute, videoconference-delivered attention control intervention adapted from the National Institute on Aging's Go4Life program. The content focuses on general health and wellness (e.g., nutrition, physical activity, fall prevention), with sleep hygiene included as one topic. Sleep-specific behavioral and cognitive strategies from CBT-I are not provided in this arm. Participants will: * Attend five weekly 60-minute virtual sessions with a facilitator * Receive a manual and workbook with educational materials and exercises * Complete health-related journals (e.g., food intake, physical activity, sleep hygiene practices) * Wear a wrist actigraph and complete sleep diaries on the same schedule as the intervention arm
Interventions
REPAIR Sleep is a dyadic CBT-I program delivered via videoconferencing over 5 weekly sessions (60 minutes each). Core components include: * Stimulus control: establishing consistent wake times and strengthening the bed-sleep association * Sleep compression: gradually adjusting time in bed to improve sleep efficiency, using a milder form appropriate for older adults and PLwD * Relaxation training: techniques to reduce physiological and cognitive arousal at bedtime; can be practiced individually or together * Cognitive therapy: identifying and modifying unhelpful thoughts and beliefs about sleep and its consequences * Sleep hygiene education: optimizing environmental and behavioral factors that influence sleep The intervention uses written and recorded agreements and daily logs to support memory challenges in PLwD and to promote consistent practice of sleep behaviors. Both dyad members attend all sessions.
Healthy Living is an attention-matched, 5-week behavioral health education program delivered via videoconferencing. Weekly 60-minute sessions cover: * Week 1: Healthy aging principles, components of a healthy lifestyle, nutrition basics, budgeting for nutritious meals, meal planning, and food journaling * Week 2: Sleep hygiene education, introduction to flexibility exercises and stretches, activity journaling, and goal setting * Week 3: Balance exercises, fall prevention strategies (including safe bed exits at night), and weight-bearing aerobic exercise * Week 4: Strength training using resistance bands and light weights * Week 5: Integration of exercise, nutrition, and sleep hygiene; review and goal setting for continued healthy living The program emphasizes goal setting, progress tracking, and behavioral reinforcement, with dyads encouraged to implement lifestyle changes and discuss successes and challenges during sessions.
Eligibility Criteria
You may qualify if:
- PLwCC and Caregiver
- Have Insomnia Severity Index (ISI) ≥10
- Have difficulty initiating or maintaining sleep or waking up too early at least three nights per week
- Have sleep disturbances persisting for at least three months
- Have daytime impairment (e.g., fatigue, mood disturbance)
- Community-dwelling
- Co-residing with each other
- Have internet access
- No history of surgery in the past 4 weeks
- Caregivers -Regularly assist the care recipient with ≥1 of 7 basic activities of daily living61 or ≥1 of 7 Instrumental Activities of Daily Living for the past 6 months.
- PLwD
- Reported or diagnosed cognitive impairment; able to complete simple directives.
You may not qualify if:
- PLwCC or Caregiver:
- A diagnosis of psychosis, major depressive disorder, or bipolar disorder that is not currently treated;
- Having had substance or alcohol dependency, or active suicidality in the past year
- Currently have narcolepsy or restless leg syndrome
- Does shift work
- Plan trans-meridian travel during the period of data collection blocks
- Hearing or visual impairment
- Caregivers
- Dementia or cognitive impairment.
- Individuals who are not yet adults
- Pregnant women
- Prisoners
- Individuals who are not able to clearly understand English.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Emory Universitylead
- National Institute on Aging (NIA)collaborator
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Glenna Brewster, PhD, RN
Emory University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor
Study Record Dates
First Submitted
April 27, 2026
First Posted
May 7, 2026
Study Start (Estimated)
July 1, 2026
Primary Completion (Estimated)
June 1, 2028
Study Completion (Estimated)
June 1, 2028
Last Updated
May 7, 2026
Record last verified: 2026-05
Data Sharing
- IPD Sharing
- Will not share