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Cognitive Behavioral Therapy for Insomnia as an Adjunct to Time-restricted Eating on Weight Loss in Adults With Overweight or Obesity and Chronic Insomnia

2026年8月14日 更新者:Angus Pak-Hung Yu、Chinese University of Hong Kong

Effects of Cognitive Behavioral Therapy for Insomnia (CBTI) as an Adjunct Intervention for Time-restricted Eating on Weight Loss in Adults With Overweight or Obesity and Chronic Insomnia

Obesity (being overweight due to excess body fat) is a common health condition that increases the risk of developing problems such as diabetes, high blood pressure, and heart disease. Time-restricted eating (TRE), which involves eating all meals within a set period each day, has become a popular and simple approach for weight management. However, not everyone achieves the same results from TRE. Research suggests that poor sleep and chronic insomnia can increase hunger, affect food choices, and lead to higher calorie intake, which may make weight loss more difficult.

This study aims to examine whether improving sleep can enhance the effectiveness of flexible time-restricted eating (FTRE) for weight loss. Participants will receive either FTRE alone or FTRE combined with Cognitive Behavioural Therapy for Insomnia (CBTI), a well-established treatment for chronic insomnia. By comparing these two approaches, this study will help determine whether addressing sleep problems can improve weight management outcomes in individuals with overweight or obesity and chronic insomnia. The findings may contribute to the development of more effective and comprehensive lifestyle programmes for improving both sleep and weight-related health.

調査の概要

状態

まだ募集していません

条件

介入・治療

詳細な説明

This study aims to investigate whether CBTI can enhance the effectiveness of TRE for weight control in adults with chronic insomnia and overweight or obesity. This assessor-blinded, two-arm, parallel-group randomized controlled pilot trial plans to recruit 50 Chinese adults aged 18 years or older with chronic insomnia and overweight or obesity (BMI ≥23 kg/m²) in Hong Kong. Participants will be randomized (1:1) to a flexible time-restricted eating group (FTRE, n=25) or a flexible time-restricted eating plus CBTI group (CBTI+FTRE, n=25). Both groups will follow a 16:8 time-restricted eating schedule for 12 weeks, while participants in the CBTI+FTRE group will additionally receive a 12-week group-based CBTI program consisting of biweekly 90-minute sessions. Assessments will be conducted at baseline, post-intervention (week 12), and follow-up (week 24). The primary outcome is body weight. Secondary outcomes include body mass index, waist and neck circumferences, body composition, insomnia severity, sleep quality, objective and subjective sleep parameters, physical activity, blood pressure, appetite, food intake, eating window, and exercise habits. We hypothesize that the addition of CBTI to TRE will result in greater weight loss and improved sleep outcomes compared with TRE alone

研究の種類

介入

入学 (推定)

50

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

  • 名前:Angus Pak-hung YU, PhD
  • 電話番号:(852) 39435253
  • メール:phayu@cuhk.edu.hk

研究場所

      • Hong Kong、香港、00000
        • Kwok Sports Building, The Chinese University of Hong Kong
        • コンタクト:
          • Angus Pak-hung YU, PhD
          • 電話番号:(852) 39435253

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人
  • 高齢者

健康ボランティアの受け入れ

いいえ

説明

Inclusion Criteria:

  1. Ethnic Chinese;
  2. Age 18 years or older;
  3. Fulfill the criteria of chronic insomnia defined by Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) , which are:

    i. manifestation of predominant, subpar sleep quantity or quality; ii. exhibition of any sleep difficulties ranging from sleep initiation, sleep maintenance to early awakening with the inability to restore sleep.

    iii. concomitant presentation of significant distress or impairment, including fatigue or low energy, cognitive impairment, mood disturbance, behavioral problems, impaired occupational or academic functioning, impaired interpersonal or social functioning and negative impact on caregiver or family functioning; iv. sleep difficulty occurs at least three nights per week; v. sleep difficulty has been persistent for at least three months; and vi. sleep difficulty is not affected regardless of adequate opportunity given for sleep.

  4. With Overweight or obesity: BMI ≥ 23 kg/m2
  5. Weight stable for the past 3 months
  6. Habitual eating window ≥ 10 hours

Exclusion Criteria:

  1. Known cardiovascular disease;
  2. Type 1 or 2 diabetes mellitus;
  3. Current use of GLP-1 receptor agonists or other prescription weight-loss medications within the past 3 months;
  4. Currently on a special or prescribed diet for other reasons;
  5. Currently receiving any psychological treatment for insomnia;
  6. Previously received CBTI;
  7. Night shift workers;
  8. Breastfeeding, pregnant or trying to become pregnant;
  9. Smokers.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:独身

武器と介入

参加者グループ / アーム
介入・治療
アクティブコンパレータ:FTRE
Flexible Time-restricted Eating
Participants assigned to the FTRE group will be instructed to follow a 16:8 time-restricted eating schedule, consuming food ad libitum within an 8-hour eating window and fasting for the remaining 16 hours of the day. No restrictions will be placed on the type or quantity of foods consumed during the eating window, and participants will not be required to track their energy intake. During fasting periods, participants will be encouraged to maintain adequate hydration by drinking water and may also consume non-caloric beverages, such as plain tea or black coffee. Participants will be allowed to select their preferred 8-hour eating window, provided it begins between 8:00 AM and 12:00 PM and ends between 4:00 PM and 8:00 PM.
実験的:CBTI+FTRE
Flexible Time-restricted Eating plus Cognitive Behavioural Therapy for Insomnia
In addition to following the TRE instruction in the TRE group, participants in the CBTI+TRE group will also participate in a 12-week group-based CBTI intervention with biweekly 90-minute sessions. The intervention comprises all CBTI elements, including sleep hygiene, sleep restriction, stimulus control, cognitive restructuring, and stress and relaxation techniques. Intervention will be delivered by trained research personnel.

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Weight
時間枠:12 weeks, and 24 weeks
Body weight will be measured using a bioelectrical impedance analyzer (BIA) to the nearest 0.1 kg following a minimum 4-hour fast. Participants will be instructed to void their bladder immediately before the assessment, remove their shoes and heavy clothing, and stand upright on the analyzer platform during the measurement.
12 weeks, and 24 weeks

二次結果の測定

結果測定
メジャーの説明
時間枠
Body mass index (BMI)
時間枠:12 weeks, and 24 weeks
BMI will be calculated as weight in kilograms divided by the square of height in meters.
12 weeks, and 24 weeks
Waist circumference
時間枠:12 weeks, and 24 weeks
Waist circumference will be measured using the protocol of World Health Organisation (i.e. the circumference at the midpoint between the lower margin of the last palpable rib and the top of the iliac crest). Waist circumference will be measured to the nearest 0.1cm.
12 weeks, and 24 weeks
Fat percentage
時間枠:12 weeks, and 24 weeks
Fat percentage will be measured using a bioelectrical impedance analyzer (BIA).
12 weeks, and 24 weeks
Fat mass
時間枠:12 weeks, and 24 weeks
Fat mass will be calculated as weight multiplied by fat percentage.
12 weeks, and 24 weeks
Fat free mass
時間枠:12 weeks, and 24 weeks
Fat free mass will be calculated as weight subtracted by fat mass.
12 weeks, and 24 weeks
Insomnia Severity Index (ISI)
時間枠:12 weeks, and 24 weeks
The ISI, a commonly used instrument in clinical settings, will be used to assess the perceived insomnia severity. It consists of seven items to evaluate sleep onset, sleep maintenance, early awakening, satisfaction with the current sleep pattern, impairment of daily functioning due to sleep, noticeable impairment due to sleep problems, degree of distress and concerns caused by sleep problems. Each item is rated on a "0-4" Likert scale, resulting in a range of scores between 0 and 28. The higher the score, the higher the perceived severity.
12 weeks, and 24 weeks
Pittsburgh Sleep Quality Index (PSQI)
時間枠:12 weeks, and 24 weeks
Subjective sleep quality will be evaluated using the PSQI. The PSQI assesses 7 components of subjective sleep quality, including self-reported sleep quantity, use of sleep medication, and disturbances of sleep, and is considered one of the most frequently used assessments of subjective sleep quality. The total score of the PSQI ranges from 0 to 21, where lower values indicate better sleep.
12 weeks, and 24 weeks
Actigraphy-estimated sleep onset latency
時間枠:12 weeks, and 24 weeks
Participants will be instructed to wear a wrist actigraph device (wGT3X-BT, ActiGraph) on their non-dominant wrists 24 hours for 7 days to measure objective sleep. This device is a 3-axis accelerometer that estimates wakefulness and sleep based on detected movements. The 7-day average of objective sleep parameters (i.e. sleep onset latency) will be estimated by the data in the actigraphy record.
12 weeks, and 24 weeks
Actigraphy-estimated total sleep time
時間枠:12 weeks, and 24 weeks
Participants will be instructed to wear a wrist actigraph device (wGT3X-BT, ActiGraph) on their non-dominant wrists 24 hours for 7 days to measure objective sleep. This device is a 3-axis accelerometer that estimates wakefulness and sleep based on detected movements. The 7-day average of objective sleep parameters (i.e. total sleep time) will be estimated by the data in the actigraphy record.
12 weeks, and 24 weeks
Actigraphy-estimated wake time after sleep onset
時間枠:12 weeks, and 24 weeks
Participants will be instructed to wear a wrist actigraph device (wGT3X-BT, ActiGraph) on their non-dominant wrists 24 hours for 7 days to measure objective sleep. This device is a 3-axis accelerometer that estimates wakefulness and sleep based on detected movements. The 7-day average of objective sleep parameters (i.e. wake time after sleep onset) will be estimated by the data in the actigraphy record.
12 weeks, and 24 weeks
Actigraphy-estimated sleep efficiency
時間枠:12 weeks, and 24 weeks
Participants will be instructed to wear a wrist actigraph device (wGT3X-BT, ActiGraph) on their non-dominant wrists 24 hours for 7 days to measure objective sleep. This device is a 3-axis accelerometer that estimates wakefulness and sleep based on detected movements. The 7-day average of objective sleep parameters (i.e. sleep efficiency) will be estimated by the data in the actigraphy record.
12 weeks, and 24 weeks
Actigraphy-estimated number of awakenings
時間枠:12 weeks, and 24 weeks
Participants will be instructed to wear a wrist actigraph device (wGT3X-BT, ActiGraph) on their non-dominant wrists 24 hours for 7 days to measure objective sleep. This device is a 3-axis accelerometer that estimates wakefulness and sleep based on detected movements. The 7-day average of objective sleep parameters (i.e. number of awakenings) will be estimated by the data in the actigraphy record.
12 weeks, and 24 weeks
Actigraphy-estimated average awaken time
時間枠:12 weeks, and 24 weeks
Participants will be instructed to wear a wrist actigraph device (wGT3X-BT, ActiGraph) on their non-dominant wrists 24 hours for 7 days to measure objective sleep. This device is a 3-axis accelerometer that estimates wakefulness and sleep based on detected movements. The 7-day average of objective sleep parameters (i.e. average awaken time) will be estimated by the data in the actigraphy record.
12 weeks, and 24 weeks
Sleep diary-estimated sleep onset latency
時間枠:12 weeks, and 24 weeks
Participants will be instructed to record their sleep pattern, including on-bed time, leave bed time, total sleep time and the number of awakenings, for 7 days on a sleep diary while wearing the actigraph device. The 7-day average of subjective sleep parameters (i.e. sleep onset latency) will be estimated by the sleep diary record.
12 weeks, and 24 weeks
Sleep diary-estimated total sleep time
時間枠:12 weeks, and 24 weeks
Participants will be instructed to record their sleep pattern, including on-bed time, leave bed time, total sleep time and the number of awakenings, for 7 days on a sleep diary while wearing the actigraph device. The 7-day average of subjective sleep parameters (i.e. total sleep time) will be estimated by the sleep diary record.
12 weeks, and 24 weeks
Sleep diary-estimated wake time after sleep onset
時間枠:12 weeks, and 24 weeks
Participants will be instructed to record their sleep pattern, including on-bed time, leave bed time, total sleep time and the number of awakenings, for 7 days on a sleep diary while wearing the actigraph device. The 7-day average of subjective sleep parameters (i.e. wake time after sleep onset) will be estimated by the sleep diary record.
12 weeks, and 24 weeks
Sleep diary-estimated sleep efficiency
時間枠:12 weeks, and 24 weeks
Participants will be instructed to record their sleep pattern, including on-bed time, leave bed time, total sleep time and the number of awakenings, for 7 days on a sleep diary while wearing the actigraph device. The 7-day average of subjective sleep parameters (i.e. sleep efficiency) will be estimated by the sleep diary record.
12 weeks, and 24 weeks
Sleep diary-estimated number of awakenings
時間枠:12 weeks, and 24 weeks
Participants will be instructed to record their sleep pattern, including on-bed time, leave bed time, total sleep time and the number of awakenings, for 7 days on a sleep diary while wearing the actigraph device. The 7-day average of subjective sleep parameters (i.e. number of awakenings) will be estimated by the sleep diary record.
12 weeks, and 24 weeks
Sleep diary-estimated average awaken time
時間枠:12 weeks, and 24 weeks
Participants will be instructed to record their sleep pattern, including on-bed time, leave bed time, total sleep time and the number of awakenings, for 7 days on a sleep diary while wearing the actigraph device. The 7-day average of subjective sleep parameters (i.e. average awaken time) will be estimated by the sleep diary record.
12 weeks, and 24 weeks
Habitual physical activity (Total volume of physical activity, MET-minutes/week)
時間枠:12 weeks, and 24 weeks
The Chinese version of the International Physical Activity Questionnaire, Long Form (IPAQ-LC), will be used to assess the activity levels of the participants.
12 weeks, and 24 weeks
Habitual physical activity (Total sedentary time, hours/week)
時間枠:12 weeks, and 24 weeks
The Chinese version of the International Physical Activity Questionnaire, Long Form (IPAQ-LC), will be used to assess the activity levels of the participants.
12 weeks, and 24 weeks
Systolic blood pressure
時間枠:12 weeks, and 24 weeks
Blood pressure will be measured in accordance with the American Heart Association's scientific statement on blood pressure assessment in humans. Participants will be instructed to sit quietly with their back supported, feet flat on the floor, and legs uncrossed. After resting in this position for 5 minutes, measurements will be taken using an electronic blood pressure monitor. During the procedure, the participant's right upper arm will be supported at heart level on a flat surface, and they will be asked to refrain from talking throughout both the resting period and the measurement. Two readings of systolic blood pressure will be obtained, spaced 2 minutes apart, and the average of the two measurements will be recorded as the final blood pressure reading. If the difference between the two measurements exceeds 5 mmHg, an additional reading will be taken, and the average of all three readings will be used as the final measurement.
12 weeks, and 24 weeks
Diastolic blood pressure
時間枠:12 weeks, and 24 weeks
Blood pressure will be measured in accordance with the American Heart Association's scientific statement on blood pressure assessment in humans. Participants will be instructed to sit quietly with their back supported, feet flat on the floor, and legs uncrossed. After resting in this position for 5 minutes, measurements will be taken using an electronic blood pressure monitor. During the procedure, the participant's right upper arm will be supported at heart level on a flat surface, and they will be asked to refrain from talking throughout both the resting period and the measurement. Two readings of diastolic blood pressure will be obtained, spaced 2 minutes apart, and the average of the two measurements will be recorded as the final blood pressure reading. If the difference between the two measurements exceeds 5 mmHg, an additional reading will be taken, and the average of all three readings will be used as the final measurement.
12 weeks, and 24 weeks
Appetite (Hunger)
時間枠:12 weeks, and 24 weeks
Subjective hunger will be assessed using validated 100-mm Visual Analogue Scales (VAS) administered upon waking, before and 30 minutes after the first and last meals, and before bedtime. Higher scores will indicate greater perceived hunger.
12 weeks, and 24 weeks
Appetite (Satiety)
時間枠:12 weeks, and 24 weeks
Subjective satiety will be assessed using validated 100-mm Visual Analogue Scales (VAS) administered upon waking, before and 30 minutes after the first and last meals, and before bedtime. Higher scores will indicate greater perceived fullness.
12 weeks, and 24 weeks
Food intake (Total energy intake)
時間枠:12 weeks, and 24 weeks
Participants will be instructed to complete a consecutive 3-day food diary, including 2 weekdays and 1 weekend day. Total energy intake will be estimated based on the dietary records.
12 weeks, and 24 weeks
Food intake (Carbohydrate consumption)
時間枠:12 weeks, and 24 weeks
Participants will be instructed to complete a consecutive 3-day food diary, including 2 weekdays and 1 weekend day. Carbohydrate consumption will be estimated based on the dietary records.
12 weeks, and 24 weeks
Food intake (Protein consumption)
時間枠:12 weeks, and 24 weeks
Participants will be instructed to complete a consecutive 3-day food diary, including 2 weekdays and 1 weekend day. Protein consumption will be estimated based on the dietary records.
12 weeks, and 24 weeks
Food intake (Fat consumption)
時間枠:12 weeks, and 24 weeks
Participants will be instructed to complete a consecutive 3-day food diary, including 2 weekdays and 1 weekend day. Fat consumption will be estimated based on the dietary records.
12 weeks, and 24 weeks
Eating window
時間枠:12 weeks, and 24 weeks
Participants will be required to record the start time of their first caloric intake and the end time of their last caloric intake in the seven-day log. The eating window will be calculated as the time interval between the first and last eating occasions of the day.
12 weeks, and 24 weeks
Exercise habit
時間枠:12 weeks, and 24 weeks
Participants will be instructed to complete a 7-day exercise log. The log will capture information on all exercise activities undertaken during the weeks, including the date, start and end times, exercise type, and exercise intensity.
12 weeks, and 24 weeks

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年8月25日

一次修了 (推定)

2027年6月30日

研究の完了 (推定)

2027年6月30日

試験登録日

最初に提出

2026年8月14日

QC基準を満たした最初の提出物

2026年8月14日

最初の投稿 (実際)

2026年8月18日

学習記録の更新

投稿された最後の更新 (実際)

2026年8月18日

QC基準を満たした最後の更新が送信されました

2026年8月14日

最終確認日

2026年8月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • TRE_CBTI_1

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

未定

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

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