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PreDiabetesNCT04457440

Cognitive Behavioral Sleep Intervention for Prevention of Type 2 Diabetes

A study testing Intensive Lifestyle Intervention and Intensive Lifestyle Intervention enhanced with Cognitive Behavioral Sleep Intervention in people with PreDiabetes and Insomnia, run by The University of Hong Kong at 2 sites in Hong Kong.

Suspended

Paused. Enrolment is on hold for now and may resume.

Official record
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Trial summary

The proposed study aims to evaluate if improving sleep could enhance the intensive lifestyle intervention for improving weight loss and glycemic control in prediabetic individuals who have insomnia with short sleep duration. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
PreDiabetes, Insomnia, Sleep Deprivation
What is being tested?
Intensive Lifestyle Intervention and Intensive Lifestyle Intervention enhanced with Cognitive Behavioral Sleep Intervention
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
2 sitesHong Kong
Study dates
1 Jul 2020to 30 Dec 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • (a) Hong Kong residents,
  • (b) BMI > 23kg/m2,
  • (c) aged 18 to 65 year-old,
  • (d) have prediabetes, defined by a plasma fasting glucose concentration of 5.6 to 6.9 mmol/L, impaired glucose tolerance (2hglucose 7.8-11.0 on OGTT), or HbA1c 5.7-6.4%,
  • (e) have average habitual sleep duration < 6.5 hours, confirmed by actigraphy measure of sleep for 2 weeks or have insomnia, confirmed in a clinical sleep interview and actigraph-measure of greater than 30 minutes of sleep onset latency or nighttime awakening for 3 nights or more per week

Who cannot join

  • (a) have unmanaged sleep apnea or other sleep disorders,
  • (b) have any current severe mental illnesses,
  • (c) have any medical conditions or medication use that could undermine the efficacy of the sleep intervention,
  • (d) have shift work schedules,
  • (e) have any environmental constraints on the feasibility of implementing a sleep schedule of at least 7.5 hours

Trial locations and contacts

2 sites in 1 country.

Hong Kong2 sites
  • Queen Mary Hpspital

    Hong Kong

  • The University of Hong Kong

    Hong Kong

Other trials in Hong Kong

About this study

Official title: A Pilot Study of a Cognitive Behavioral Sleep Intervention for the Prevention of Type 2 Diabetes

The proposed study aims to evaluate if improving sleep could enhance the intensive lifestyle intervention for improving weight loss and glycemic control in prediabetic individuals who have insomnia with short sleep duration. A cognitive behavioral intervention for insomnia with adjustments aimed at increasing sleep duration (CBT-Sleep) will be used for this study.

Being tested
Intensive Lifestyle Intervention, Intensive Lifestyle Intervention enhanced with Cognitive Behavioral Sleep Intervention
Keywords
Cognitive Behavioral Therapy, Lifestyle Intervention
Medical subject headings
Prediabetic State, Sleep Initiation and Maintenance Disorders, Sleep Deprivation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Intensive Lifestyle InterventionBehavioural

    This intervention is an abbreviated version of the Diabetes Prevention Program, which has been shown to be effective in reducing the risk of developing type 2 diabetes.

  • Intensive Lifestyle Intervention enhanced with Cognitive Behavioral Sleep InterventionBehavioural

    This intervention will consist of the same 8 sessions of ILI with additions of sleep components in each session. The additional sleep components will include (a) psychoeducation about the importance of sleep in weight control and glycemic control, (b) sleep hygiene, (c) stimulus control, (d) modifying maladaptive beliefs about sleep, (e) and, setting individualized sleep schedule and reviewing sleep schedule.

Study groups in NCT04457440
Study groupRoleWhat they receive
Intensive Lifestyle Intervention (ILI)Active comparatorThe ILI will consist of 8 group-based 90-min sessions focusing on modifying dietary and exercise habits with the goal of reducing 450kcal of daily calories and increasing physical activity to 150 minutes of exercise per week.
Receives: Behavioral: Intensive Lifestyle Intervention
ILI enhanced with cognitive behavioral sleep interventionExperimentalThe ILI+Sleep intervention will consist of the same 8 sessions of ILI with additions of sleep components in each session.
Receives: Behavioral: Intensive Lifestyle Intervention enhanced with Cognitive Behavioral Sleep Intervention

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes in HbA1C (%)

    Measured: 12 weeks from baseline

  2. Changes in fasting glucose concentration (mg/dl)

    Measured: 12 weeks from baseline

  3. Changes in 2-hr oral glucose tolerance (mg/dl)

    Measured: 12 weeks from baseline

Secondary outcomes (15)
  1. Changes in insomnia symptom severity

    measured by the Insomnia Severity Index. The score ranges from 0 to 28. The higher the score, the greater the symptom severity

    Measured: 12 weeks from baseline

  2. Changes in subjective sleep onset latency

    measured by daily sleep diary

    Measured: 12 weeks from baseline

  3. Changes in subjective wake after sleep onset

    measured by daily sleep diary

    Measured: 12 weeks from baseline

  4. Changes in subjective total sleep time

    measured by daily sleep diary

    Measured: 12 weeks from baseline

  5. Changes in objective sleep onset latency

    measured by actigraphy

    Measured: 12 weeks from baseline

  6. Changes in objective wake after sleep onset

    measured by actigraphy

    Measured: 12 weeks from baseline

  7. Changes in objective total sleep time

    measured by actigraphy

    Measured: 12 weeks from baseline

  8. Changes in body weight (kg)

    Measured: 12 weeks from baseline

  9. Changes in psychological distress

    the validated Chinese version of the Depression Anxiety Stress Scales (DASS-21)will be used. The score ranges from 0 to 63. The higher the score, the greater the distress

    Measured: 12 weeks from baseline

  10. Changes in quality of life

    the validated Chinese version of the Satisfaction with Life Scale will be used to measure quality of life. The score ranges from 5 to 35. The higher the score, the greater the quality of life

    Measured: 12 weeks from baseline

  11. Changes in food craving

    Measured by the Food Craving Questionnaire. The score ranges from 10 to 70. The higher the score, the greater the food craving

    Measured: 12 weeks from baseline

  12. Changes in acceptance of physical activity

    Measured by the Physical Activity Acceptance and Action Questionnaire. The score ranges from 10 to 70. The higher the score, the greater acceptance.

    Measured: 12 weeks from baseline

  13. Changes in weight loss self efficacy

    Measured by the Weight Loss Self Efficacy Scale. The score ranges from 0 to 100%. The higher the percentage, the greater the self-efficacy

    Measured: 12 weeks from baseline

  14. Changes in weight control strategies

    Measured by the Weight Control Strategy Scale. The score ranges from 0 to 120. The higher the percentage, the more effective strategies are used

    Measured: 12 weeks from baseline

  15. Changes in dietary composition

    Measured by the Chinese version of the 7-day Food Frequency Questionnaire

    Measured: 12 weeks from baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Jul 2020
  2. Study start1 Jul 2020
  3. Primary completion30 Dec 2021 (estimated)
  4. Study completion30 Dec 2021 (estimated)

Why it stopped: COVID pandemic affected recruitment.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
36 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04457440
Sponsor's protocol ID
EA1909037
Other IDs
UW20-245
Status last verified
Oct 2021
First submitted
26 Jun 2020
Last updated
25 Oct 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Deidentified data will be shared with other researchers for review purposes.

Questions about this trial

What is this clinical trial studying?

A study testing Intensive Lifestyle Intervention and Intensive Lifestyle Intervention enhanced with Cognitive Behavioral Sleep Intervention in people with PreDiabetes and Insomnia, run by The University of Hong Kong at 2 sites in Hong Kong.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: paused, as of the sponsor's last update on 25 Oct 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Hong Kong. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes in HbA1C (%) (time frame: 12 weeks from baseline). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Oct 2021.

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