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摂食障害における睡眠と活動 (SAFE)

2026年11月3日 更新者:Istituto Auxologico Italiano

睡眠と活動による摂食障害へのアプローチ(SAFE):睡眠パラメーターに関する横断的および前向き研究

The SAFE (i.e., Sleep and Activity For Eating disorders) study aims to investigate the characteristics of sleep, daytime activity, and circadian rhythms in a sample of patients with eating disorders-specifically anorexia nervosa, bulimia nervosa, and binge-eating disorder-as well as the relationship between these variables and physiological parameters (i.e., body mass index, hormone levels, blood chemistry parameters) and psychological parameters (i.e., levels of depression and anxiety, body image, eating-disorder symptoms).

調査の概要

詳細な説明

The central aim of the study is to describe sleep characteristics in a population of patients with eating disorders (i.e., anorexia nervosa, bulimia nervosa, and binge-eating disorder) attending the Center for Eating and Nutrition Disorders of the Istituto Auxologico Italiano (Piancavallo branch) - San Giuseppe Hospital.

Sleep will be characterized through the following assessments:

  1. actigraphy combined with salivary melatonin measurement;
  2. collection of self-report data regarding sleep characteristics and dream content (e.g., sleep and dream diary);
  3. validated self-report questionnaires assessing sleep characteristics (Pittsburgh Sleep Quality Index - PSQI) and circadian rhythms (- reduced version of the Morningness-Eveningness Questionnaire - rMEQ).

Specifically, sleep characteristics will be assessed at home, during the month preceding admission to Piancavallo (Time 0), through:

  1. validated self-report questionnaires assessing sleep characteristics (PSQI) and circadian rhythms (rMEQ);
  2. collection of self-report data regarding sleep characteristics and dream content (e.g., sleep and dream diary), as well as actigraphy for at least one week.

Subsequently, throughout the entire inpatient stay (Time 1: first day of admission; Time 2: midpoint of the admission - 4 weeks; Time 3: the night before discharge), patients will be monitored using actigraphy and will undergo salivary melatonin measurement on the first and last day before discharge. During the same period, daily self-report data on sleep characteristics and dream content (e.g., sleep and dream diary) will be collected.

In these same patients, in addition to age, sex, anthropometric data, and blood chemistry parameters (including ghrelin, leptin, and orexin levels), as well as ongoing pharmacological treatment, the following will be assessed: presence and severity of body image distortion (Body Uneasiness Test - BUT , and Body Image Task - BIT), mood disorders (Beck's Depression Inventory - BDI, and Hospital Anxiety and Depression Scale - HADS), social anxiety related to physical appearance (Social Appearance Anxiety Scale - SAAS), severity of the eating disorder (Eating Disorder Inventory-3 - EDI-3, Yale-Food Addiction Scale - YFAS, and Binge Eating Scale - BES), intensity of the urge to engage in physical activity (State Urge to be Physically Active Questionnaire - SUPAQ), and individual differences in the expression of personality traits (HEXACO adjectives list). Measurements obtained through these psychometric tests will be collected at three timepoints: upon admission to the unit for rehabilitation (Time 1), around the midpoint of the rehabilitation program (Time 2: 4 weeks after admission), and at discharge (Time 3).

The secondary objectives will also include the following:

  • Assessing the correlation of the above parameters with the intensity, duration, and circadian distribution of daytime physical activity using actigraphy and validated scales (SUPAQ); actigraphy will also allow the evaluation of several nighttime sleep parameters: sleep duration, number of awakenings, and sleep efficiency (e.g., ratio of sleep time to time in bed);
  • Assessing the relationship between sleep patterns and the degree of body image distortion as measured through the BIT, which examines body-part metrics and allows calculation of the distortion index between real body measurements and those implicitly perceived by the subject, and the BUT, an additional measure of perceived inadequacy regarding one's body;
  • Assessing the influence of mood disorders measured through structured interviews and standardized questionnaires (BDI-II and HADS) on sleep characteristics and eating disorder severity in the population described above;
  • Assessing the influence of chronotype (e.g., morning, evening, or intermediate), investigated through the rMEQ questionnaire, on eating disorder symptomatology and on the expression of different personality traits, assessed through self-report questionnaires (HEXACO).

研究の種類

介入

入学 (推定)

75

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。

研究場所

    • VB
      • Verbania、VB、イタリア、28824
        • Istituto Auxologico Italiano - S. Giuseppe Hospital

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

18年~65年 (大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

Inclusion Criteria:

  • a) Age over 18 and under 65;
  • b) Diagnosis of anorexia nervosa, bulimia nervosa, or binge-eating disorder, as indicated by DSM-5-TR criteria;
  • c) Adherence to the rehabilitation program.

Exclusion Criteria:

  • a) Presence of severe bradycardia (BPM < 35);
  • b) Severe malnutrition (BMI < 10);
  • c) Presence of severe psychopathology other than the eating disorder (e.g., schizophrenia);
  • d) Need to modify psychotropic or sleep-inducing pharmacological therapy during the rehabilitation program.

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:基礎科学
  • 割り当て:非ランダム化
  • 介入モデル:並列代入
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
他の:Patients with anorexia nervosa

Examinations of sleep, circadian rhythms, physical activity and psychological features

The actigraph is a non-invasive device used to measure sleep-wake rhythms based on the recording of motor activity over a 24-hour period (Acker et al., 2021). Since it is easy to handle due to its physical characteristics, it can be worn for extended periods and therefore allows the collection of data related to activity and rest phases, as well as circadian rhythms. Specifically, the use of this method allows the collection of measures relating both to daytime motor activity (i.e., intensity, duration, and circadian distribution) and to nighttime sleep (i.e., duration, sleep-onset latency, wake period, number of awakenings, efficiency index, sleep and wake times).

他の名前:
  • 睡眠のアクティグラフィー測定

Some medical parameters will be collected, including blood pressure, heart rate, respiratory rate, blood levels of ghrelin, leptin, and orexin, as well as salivary melatonin levels.

他の名前:
  • 生物学的採取(血液および唾液)

Participants will be asked to complete: a) Pittsburgh Sleep Quality Index (to measure subjective sleep quality); b) Morningness-Eveningness questionnaire (to measure the chronotype); c) Body Uneasiness Test (to measure body image uneasiness); d) Body Image Task (to measure the implicit perception of body image); e) Eating Disorder Inventory-3, Binge Eating Scale, Yale Food Addiction Scale (to measure the severity of eating symptoms); f) Beck Depression Inventory - II, Hospital anxiety and Depression Scale, Social Appearance Anxiety Scale (to measure depression levels); g) State Urge to be Physically Active Questionnaire (to measure physical activity levels); h) HEXACO list of adjectives (to evaluate personality traits).

他の名前:
  • 臨床医によって実施される自己報告尺度または測定器具による心理テスト
他の:Patients with bulimia nervosa

Examinations of sleep, circadian rhythms, physical activity and psychological features

The actigraph is a non-invasive device used to measure sleep-wake rhythms based on the recording of motor activity over a 24-hour period (Acker et al., 2021). Since it is easy to handle due to its physical characteristics, it can be worn for extended periods and therefore allows the collection of data related to activity and rest phases, as well as circadian rhythms. Specifically, the use of this method allows the collection of measures relating both to daytime motor activity (i.e., intensity, duration, and circadian distribution) and to nighttime sleep (i.e., duration, sleep-onset latency, wake period, number of awakenings, efficiency index, sleep and wake times).

他の名前:
  • 睡眠のアクティグラフィー測定

Some medical parameters will be collected, including blood pressure, heart rate, respiratory rate, blood levels of ghrelin, leptin, and orexin, as well as salivary melatonin levels.

他の名前:
  • 生物学的採取(血液および唾液)

Participants will be asked to complete: a) Pittsburgh Sleep Quality Index (to measure subjective sleep quality); b) Morningness-Eveningness questionnaire (to measure the chronotype); c) Body Uneasiness Test (to measure body image uneasiness); d) Body Image Task (to measure the implicit perception of body image); e) Eating Disorder Inventory-3, Binge Eating Scale, Yale Food Addiction Scale (to measure the severity of eating symptoms); f) Beck Depression Inventory - II, Hospital anxiety and Depression Scale, Social Appearance Anxiety Scale (to measure depression levels); g) State Urge to be Physically Active Questionnaire (to measure physical activity levels); h) HEXACO list of adjectives (to evaluate personality traits).

他の名前:
  • 臨床医によって実施される自己報告尺度または測定器具による心理テスト
他の:Patients with binge-eating disorder

Examinations of sleep, circadian rhythms, physical activity and psychological features

The actigraph is a non-invasive device used to measure sleep-wake rhythms based on the recording of motor activity over a 24-hour period (Acker et al., 2021). Since it is easy to handle due to its physical characteristics, it can be worn for extended periods and therefore allows the collection of data related to activity and rest phases, as well as circadian rhythms. Specifically, the use of this method allows the collection of measures relating both to daytime motor activity (i.e., intensity, duration, and circadian distribution) and to nighttime sleep (i.e., duration, sleep-onset latency, wake period, number of awakenings, efficiency index, sleep and wake times).

他の名前:
  • 睡眠のアクティグラフィー測定

Some medical parameters will be collected, including blood pressure, heart rate, respiratory rate, blood levels of ghrelin, leptin, and orexin, as well as salivary melatonin levels.

他の名前:
  • 生物学的採取(血液および唾液)

Participants will be asked to complete: a) Pittsburgh Sleep Quality Index (to measure subjective sleep quality); b) Morningness-Eveningness questionnaire (to measure the chronotype); c) Body Uneasiness Test (to measure body image uneasiness); d) Body Image Task (to measure the implicit perception of body image); e) Eating Disorder Inventory-3, Binge Eating Scale, Yale Food Addiction Scale (to measure the severity of eating symptoms); f) Beck Depression Inventory - II, Hospital anxiety and Depression Scale, Social Appearance Anxiety Scale (to measure depression levels); g) State Urge to be Physically Active Questionnaire (to measure physical activity levels); h) HEXACO list of adjectives (to evaluate personality traits).

他の名前:
  • 臨床医によって実施される自己報告尺度または測定器具による心理テスト

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
Sleep efficiency (SE)
時間枠:A week before the rehabilitation recovery (Time 0), at the beginning of the recovery (Time 1), half of the recovery (Time 2 - after 4 weeks from Time 1) and at the end of the recovery (Time 3 - 7 weeks from Time 1).

Sleep efficiency will be detected through actigraphic measurements and will be compared either within and among groups.

A week before the rehabilitation recovery (Time 0), at the beginning of the recovery (Time 1), half of the recovery (Time 2 - after 4 weeks from Time 1) and at the end of the recovery (Time 3 - 7 weeks from Time 1).
Chronotype
時間枠:A week before the rehabilitation recovery (Time 0), at the beginning of the recovery (Time 1), half of the recovery (Time 2 - after 4 weeks from Time 1) and at the end of the recovery (Time 3 - 7 weeks from Time 1).

Chronotype is the propensity for the individual to engage in certain activities (i.e., sleep) at a particular time during a 24-hour period. It will be detected through a self-report measure, the Morningness-Eveningness Questionnaire, in its reduced version. The scale is composed by 5 items evaluating: a) preferred time for waking up, b) preferred time for going to bed, c) subjective peak alertness during the day, d) ease of getting out of bed, and e) self-assessment of being a "morning" or "evening" type. The total score ranges from 4 to 26, with the following threshold and interpretation: a) 4-10: Evening type, b) 11-18: Intermediate type, c) 19-26: Morning type.

A week before the rehabilitation recovery (Time 0), at the beginning of the recovery (Time 1), half of the recovery (Time 2 - after 4 weeks from Time 1) and at the end of the recovery (Time 3 - 7 weeks from Time 1).
Orexin Levels
時間枠:At the beginning of the recovery (Time 1) and at the end of the recovery (Time 3 - 7 weeks from Time 1).

Levels of orexin detected through blood exams.

At the beginning of the recovery (Time 1) and at the end of the recovery (Time 3 - 7 weeks from Time 1).

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。

捜査官

  • スタディディレクター:Luigi De Gennaro、University of Roma La Sapienza
  • スタディディレクター:Leonardo Mendolicchio, MD、Istituto Auxologico Italiano
  • スタディディレクター:Serena Scarpelli, PhD、University of Roma La Sapienza

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 (実際)

2026年7月1日

一次修了 (推定)

2027年5月1日

研究の完了 (推定)

2027年7月1日

試験登録日

最初に提出

2025年12月1日

QC基準を満たした最初の提出物

2025年12月16日

最初の投稿 (実際)

2025年12月19日

学習記録の更新

投稿された最後の更新 (実際)

2026年11月4日

QC基準を満たした最後の更新が送信されました

2026年11月3日

最終確認日

2026年11月1日

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