A Transdiagnostic Sleep and Circadian Treatment for Depression

Sponsor

Chinese University of Hong Kong (Other)

Overall Status

Completed

CT.gov ID

NCT03775148

Collaborator

University of California, Berkeley (Other)

Enrollment

Location

Arms

Actual Duration (Months)

4.7

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

This study will examine the use of a transdiagnostic Sleep and Circadian Treatment (TranS-C) in treating Major Depressive Disorder (MDD) in Chinese adults. Sleep disturbance is highly comorbid with a range of psychological disorders, especially MDD. MDD is a major public health concern and a leading cause of disability worldwide. A shift in treatment perspectives, from a disorder-specific approach to a transdiagnostic approach, has been proposed. While the disorder-specific approach tends to understand and treat different mental disorders as independent psychological problems, the transdiagnostic approach aims to identify common clinical features (e.g. sleep disturbances) across a range of psychological disorders. The transdiagnostic approach would potentially facilitate timely dissemination of evidence-based psychological treatments and contribute to significant public health implications.

This study will be a pilot randomized controlled trial on the efficacy of TranS-C for MDD. TranS-C integrates elements of evidence-based interventions, namely cognitive-behavioral therapy for insomnia, delayed sleep phase type, and interpersonal and social rhythm therapy. Prior to all study procedures, an online informed consent (with phone support) will be obtained from potential participants. Around 40 eligible participants will be randomly assigned to the TranS-C group or the care-as-usual control group (CAU group) in a ratio of 1:1. The randomization will be performed by an independent assessor using a computer-generated list of numbers. No deception is necessary. Participants in the TranS-C group will receive TranS-C once per week for 6 consecutive weeks respectively. The group treatment will be delivered by a clinical psychology trainee under the supervision of a clinical psychologist. The TranS-C group will complete a set of online/paper-and-pencil questionnaires before the treatment commences, 1-week, and 12-week after the treatment sessions are completed. The CAU group will complete the same set of online/paper-and-pencil questionnaires during the same periods.

Condition or Disease	Intervention/Treatment	Phase
Depression Insomnia	Behavioral: Transdiagnostic Intervention for Sleep and Circadian Dysfunction (TranS-C)	N/A

Study Design

Study Type:

Interventional

Actual Enrollment :

37 participants

Allocation:

Randomized

Intervention Model:

Parallel Assignment

Masking:

Single (Outcomes Assessor)

Primary Purpose:

Treatment

Official Title:

A Transdiagnostic Sleep and Circadian Treatment for Depression: A Pilot Randomized Controlled Trial

Actual Study Start Date :

Jan 1, 2019

Actual Primary Completion Date :

Aug 31, 2019

Actual Study Completion Date :

Aug 31, 2019

Arms and Interventions

Arm	Intervention/Treatment
Experimental: TranS-C Group Transdiagnostic Sleep and Circadian Treatment	Behavioral: Transdiagnostic Intervention for Sleep and Circadian Dysfunction (TranS-C) TranS-C integrates elements of evidence-based interventions, namely cognitive-behavioural therapy for insomnia, delayed sleep phase type, and interpersonal and social rhythm therapy.
No Intervention: CAU Group Care-As-Usual group

Arm

Intervention/Treatment

Experimental: TranS-C Group

Transdiagnostic Sleep and Circadian Treatment

Behavioral: Transdiagnostic Intervention for Sleep and Circadian Dysfunction (TranS-C)

TranS-C integrates elements of evidence-based interventions, namely cognitive-behavioural therapy for insomnia, delayed sleep phase type, and interpersonal and social rhythm therapy.

No Intervention: CAU Group

Care-As-Usual group

Outcome Measures

Primary Outcome Measures

Change in the Patient Health Questionnaire (PHQ-9) [Pre-treatment, 1-week post-treatment and 12-week post treatment]
The PHQ-9, a 20-item questionnaire used for screening, diagnosing, monitoring and measuring the severity of depression, which scores each of the nine DSM-IV criteria as "0" (not at all) to "3" (nearly every day). PHQ-9 scores of 5, 10, 15, and 20 represents mild, moderate, moderately severe and severe depression

Secondary Outcome Measures

Change in Hospital Anxiety and Depression Scale (HADS) [Pre-treatment, 1-week post-treatment and 12-week post treatment]
A 14-item self-rating scale that measures anxiety and depression in both hospital and community settings. It is divided into an Anxiety subscale (HADS-A) and a Depression subscale (HADS-D) both containing seven intermingled items. It is for screening purpose and not meant to be a diagnostic tool. HADS scores of 8-10, 11-14, and 15-21 represent mild, moderate, and severe anxiety and depression separately.
Change in Insomnia Severity Index (ISI) [Pre-treatment, 1-week post-treatment and 12-week post treatment]
A 7-item scale designed to evaluate perceived insomnia severity. Ratings on the 5-point Likert scale are obtained on the perceived severity of sleep-onset, sleep-maintenance, early morning awakening problems, satisfaction with current sleep pattern, interference with daily functioning, noticeably of impairment attributed to the sleep problem, and level of distress caused by the sleep problem. Total score categories: 0-7 is no clinically significant insomnia, 8-14 is subthreshold insomnia,15-21 is clinical insomnia (moderate severity), and 22-28 is clinical insomnia (severe)
Change in 7-Day Sleep Diary [Pre-treatment, 1-week post-treatment and 12-week post treatment]
The standardized sleep diary records sleep-onset latency (SOL; min), wake after sleep onset (WASO; min), total wake time (TWT; min), total sleep time (TST; min), time in bed (TIB; min); sleep efficiency (SE; calculated as TST/TIB * 100%), etc. Severity of sleep disturbances: sleep latency of time awake after sleep onset greater than 30 min; or last awakening occurring more than 30 min before desired time and before total sleep time reaches 6.5 hours; sleep efficiency is lower than 85%. Frequency: sleep difficulties present three or more nights per week.
Change in Multidimensional Fatigue Inventory (MFI) [Pre-treatment, 1-week post-treatment and 12-week post treatment]
A 20-item self-report instrument designed to measure fatigue. Ratings on a 5-point Likert scale are obtained on the dimensions of general fatigue, physical fatigue, mental fatigue, reduced motivation and reduced activity. Scores on each subscale range from 4 to 20, with higher scores indicating greater fatigue.
Change in Short Form (Six-Dimension) Health Survey - The Chinese (Hong Kong) Version (SF-6D) [Pre-treatment, 1-week post-treatment and 12-week post treatment]
A preference-based single index measure of health. A six-digit number represents each SF-6D health state, each digit denotes the level of one of six SF-6D dimensions: physical functioning, role limitation, social functioning, bodily pain, mental health, and vitality. The SF-6D index, scored from 0.0 (worst health state) to 1.0 (best health state)
Change in Sheehan Disability Scale (SDS) [Pre-treatment, 1-week post-treatment and 12-week post treatment]
A 5-item self-report tool for assessing functional impairment in work/school, social life, and family life. Representation of scores in terms of functional impairment: 0: not at all, 1-3: mildly, 4-6: moderately, 7-9: markedly, 10: extremely

Other Outcome Measures

Change in Credibility-Expectancy Questionnaire (CEQ) [Pre-treatment, 1-week post-treatment and 12-week post treatment]
The 6-item CEQ yielded ratings of treatment credibility, acceptability/satisfaction, and expectations for success. it measures how much the one believe that the therapy will help to improve one's lifestyle, functioning ranging from 1 to 9 with 1 representing the lowest value and the 9 representing the highest value. Two questions asking how much improvement in the functioning the one thinks and feels that it will occur ranging 0% to 100%.

Eligibility Criteria

Criteria

Ages Eligible for Study:

18 Years and Older

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Yes

Inclusion Criteria:

Hong Kong Citizen who is able to speak Cantonese and read Chinese
Aged ≥ 18 years;
Score on PHQ-9 is 10 or above
More than 1 sleep or circadian problem according to the Sleep and Circadian Problem Checklist, including time needed to fall asleep more than 30 minutes for more than 3 nights per week, less than 6 hours of sleep per night or at least 9 hour of sleep per night per 24 hour period for at least 3 nights per week, variability in the sleep-wake schedule at least 2.78 hours within a week, and falling asleep after 2 am on at least 3 nights per week
Adequate opportunity and circumstances for sleep to occur
Willing to give informed consent and comply with the trial protocol.

Exclusion Criteria:

Major medical or neurocognitive disorders that make participation infeasible
Have suicidal ideation based on Beck Depression Inventory (BDI-II) Item 9 score ≥ 2 ;
Untreated sleep disorders based on SLEEP-50 (≥ 7 on narcolepsy; ≥ 15 on OSA; ≥ 7 on RLS/PLMD)
Past or current involvement in a psychological treatment programme for depression and/or sleep problems
Shift work, pregnancy, work, family, or other commitments that interfere with regular night-time sleep patterns
Hospitalization
A change in psychotropic drugs within 2 weeks before baseline assessment