Testing Just-in-Time Adaptive Interventions (JITAIs) to Prevent Goal Disengagement in Response to Weight Regain (Momentum)
2026年8月7日 更新者：ORI Community and Evaluation Services
This trial will test the effectiveness of a weight loss maintenance intervention designed to help participants respond more adaptively to weight regain.
Participants will be randomly assigned to one of two conditions.
In one condition, participants will receive brief exercises (e.g., written reflections, videos) sent to through a smartphone app immediately after they regain weight or miss a weigh-in.
These exercises will use mindfulness, acceptance, and self-compassion strategies to help participants stay motivated for their long term goals, even when weight regain feels demoralizing.
In the comparison condition, participants will receive weekly reminders of standard weight control strategies strategies.
調査の概要
研究の種類
介入
入学 (推定)
120
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：Charlotte Hagerman, PhD
- 電話番号：14109372035
- メール：chagerman@ori.org
研究場所
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Oregon
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Springfield、Oregon、アメリカ、97477
- 募集
- Oregon Research Institute Community and Evaluation Services
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コンタクト：
- Charlotte Hagerman, PhD
- 電話番号：4109372035
- メール：chagerman@ori.org
-
-
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:
- Ages 18-70 years
- BMI of 25-50 kg/m2
- Current weight is 3% lower than their highest weight in the past 3 years
- Desire to maintain their weight or lose more
- Ability to engage in PA, as defined as being able to walk two full city blocks without stopping
- Smartphone and Internet access
- Successful completion of all enrollment procedures
- Ability to attend a workshop(s) on a Monday or Tuesday evening
Exclusion Criteria:
- History of bariatric surgery
- History of being diagnosed with an eating disorder
- Currently pregnant, breastfeeding, or planning to become pregnant in the next 24 months
- Enrolled in another formal weight loss/weight maintenance program
- Currently taking a GLP-1 medication.
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：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 |
|---|---|
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実験的：JITAI Condition
Participants in this condition will receive a 6-month weight loss maintenance intervention that uses mindfulness, acceptance, and self-compassion strategies to respond to weight regain.
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For six months, participants will receive a just-in-time adaptive interventions via a smartphone app immediately after they gain weight or they skip a weigh-in (according to a specific algorithm).
Interventions will engage participants in mindfulness, acceptance, and self-compassion-based (MASC) strategies through different modalities (e.g., writing exercises, videos, audio reflections).
They will take approximately 1-10 minutes.
Participants will also attend an introductory workshop, during which they will receive the instructions weigh daily, learn the importance of quickly responding to weight regain, and be introduced to MASC strategies.
They will also attend two booster workshops during the 6-month period.
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アクティブコンパレータ：Active Control Condition
Participants in this condition will receive minimal intervention designed to reflect "usual care" for weight loss maintenance.
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For six months, participants will receive weekly, automated messages via a smartphone app with reminders of standard behavioral weight control principles.
Participants will attend an introductory workshop, during which they will receive instructions to weigh daily and learn the importance of responding to weight regain.
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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 |
|---|---|---|
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State negative affect
時間枠：Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Through ecological assessment surveys, participants will respond to a single item measuring their current negative affect.
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Whenever participants skip a weigh-in or regain weight during the 6 month study period
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State shame
時間枠：Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Through ecological assessment surveys, participants will respond to a single item measuring their current shame.
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Whenever participants skip a weigh-in or regain weight during the 6 month study period
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State Motivation
時間枠：Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Through ecological assessment surveys, participants will respond to a single item measuring their current feelings of motivation.
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Whenever participants skip a weigh-in or regain weight during the 6 month study period
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State Self-Efficacy
時間枠：Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Through ecological assessment surveys, participants will respond to a single item measuring their current self-efficacy.
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Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Current confidence in the effectiveness of weight control behaviors
時間枠：Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Through ecological assessment surveys, participants will respond to a single item measuring their current confidence in the effectiveness of weight control behaviors.
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Whenever participants skip a weigh-in or regain weight during the 6 month study period
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State self-compassion
時間枠：Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Through ecological assessment surveys, participants will respond to a single item measuring their state self-compassion.
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Whenever participants skip a weigh-in or regain weight during the 6 month study period
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State mindfulness
時間枠：Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Through ecological assessment surveys, participants will respond to a single item measuring their state mindfulness.
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Whenever participants skip a weigh-in or regain weight during the 6 month study period
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State acceptance
時間枠：Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Through ecological assessment surveys, participants will respond to a single item measuring their state acceptance.
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Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Self-serving interpretation of weight gain
時間枠：Whenever participants regain weight during the 6 month study period
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Through ecological assessment surveys, participants will respond to a single item measuring their self-serving interpretation of the weight regain.
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Whenever participants regain weight during the 6 month study period
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Daily Calorie Tracking (Yes/No)
時間枠：Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Whether participants log their calories (at least 800 calories) using a dietary tracking app that day (yes/no).
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Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Daily MVPA
時間枠：Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Minutes of moderate-to-vigorous physical activity they engage in that day, as tracked by their Fitbit band.
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Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Likelihood of weighing in the following day
時間枠：Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Likelihood that participants weigh themselves the following day on a wireless smart scale (yes/no).
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Whenever participants skip a weigh-in or regain weight during the 6 month study period
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Calorie Tracking Frequency
時間枠：6 months (duration of study period)
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The number of days that participants logged their calories (at least 800 calories) using a dietary tracking app during the study period.
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6 months (duration of study period)
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Average Weekly MVPA
時間枠：6 months (duration of study period)
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Average total minutes of weekly moderate-to-vigorous physical activity, as tracked by their Fitbit band, during the study period.
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6 months (duration of study period)
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Frequency of Weighing In
時間枠：6 months (duration of study period)
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Total number of days that participants weighed themselves on a wireless smart scale during the study period.
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6 months (duration of study period)
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Weight change
時間枠：End of treatment (6 months after baseline)
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Using participants' weights from a wireless scale, their percent weight change from the beginning to the end of the study period will be calculated.
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End of treatment (6 months after baseline)
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Intervention acceptability
時間枠：End of treatment (6 months after baseline)
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Intervention acceptability will be operationalized as the percent of participants who indicate that they are "satisfied" or "very satisfied" with the program on an anonymous survey that they complete during their individual interview.
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End of treatment (6 months after baseline)
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Mindfulness (Hypothesized intervention mediator)
時間枠：Mid-Treatment (3 months after baseline)
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Participants will self-report their mindfulness using the Awareness subscale of The Philadelphia Mindfulness Scale.
The range of scores is 1-5, with higher scores indicating greater mindfulness.
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Mid-Treatment (3 months after baseline)
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Acceptance (Hypothesized intervention mediator)
時間枠：Mid-Treatment (3 months after baseline)
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Participants will self-report their mindful acceptance using the Acceptance subscale of The Philadelphia Mindfulness Scale.
The range of scores is 1-5, with higher scores indicating greater mindful acceptance.
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Mid-Treatment (3 months after baseline)
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Self-compassion (Hypothesized intervention mediator)
時間枠：Mid-Treatment (3 months after baseline)
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Participants will report their self-compassion using the Self-Compassion Scale Short Form.
Scores can range from 1 to 5, with higher scores indicating higher self-compassion.
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Mid-Treatment (3 months after baseline)
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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。
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14日
一次修了 (推定)
2027年12月31日
研究の完了 (推定)
2027年12月31日
試験登録日
最初に提出
2026年7月12日
QC基準を満たした最初の提出物
2026年7月12日
最初の投稿 (実際)
2026年7月16日
学習記録の更新
投稿された最後の更新 (実際)
2026年8月11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7日
最終確認日
2026年8月1日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。