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Brigham and Women's Healthy Weight Study

29 juillet 2020 mis à jour par: Harvard Pilgrim Health Care

Brigham and Women's Healthy Weight Study: Randomized Controlled Trial of a Financial Incentive for Weight Maintenance

The purpose of this study is to determine if a financial deposit contract is a successful method of helping people to maintain their weight loss. A deposit contract is an agreement in which participants put their own money at risk, with the goal of "earning" it back by achieving a goal, in this case maintaining prior weight loss. The study will also evaluate the interventions using survey research to assess the feasibility and acceptability of the interventions.

Aperçu de l'étude

Statut

Complété

Les conditions

Intervention / Traitement

Description détaillée

Interested participants who can verify >10lb weight-loss over the last year and a half will be randomly assigned to either the control group, in which they will be asked to attend weekly weigh-ins at Brigham and Women's Hospital (BWH) over the course of a year, or to the deposit contract intervention group. Both the control group and the deposit contract group will complete the weekly weigh-ins for one year. The deposit contract group will additionally have a financial component: these participants will be asked to make a deposit of at least $100 each 10-week period over the course of one year (50 weeks), and can recoup this amount as detailed above. All participants will take baseline and end-of-study surveys.

During an enrollment meeting, study staff will request via an authorization form that participants allow approved members of the research staff to examine their electronic medical record for the duration of the study if they receive their care at a BWH-affiliated practice. This will confirm their >10lb weight loss.

At the end of every 10-week period, DC participants will receive an email with how much money they recouped. Participants who did not recoup the full amount they deposited must bring in a check to the following weigh-in to cover the difference so that participants have at least $100 deposited for the following 10-week period. Additionally, participants will have the option to use their initial study baseline weight, or be re-weighed for a new baseline weight for the following 10-week period, for which they will then use as their target weight. They will also have the option to increase or decrease their deposit for the upcoming 10-week period as needed.

Each subject may skip non-consecutive weigh-ins without losing their weekly contribution. However, if subjects skip two or more consecutive weekly weigh-ins, participants may only recoup up to one of those skipped weigh-ins if they are successful in their weight management in the week that they return for a weigh-in. Skipped weigh-ins will not roll over into a new 10-week period.

Type d'étude

Interventionnel

Inscription (Réel)

42

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

  • États-Unis
    • Massachusetts
      • Boston, Massachusetts, États-Unis, 02115
        • Brigham and Women's Hospital

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Oui

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • employee of Brigham and Women's Hospital, Dana-Farber Cancer Institute (DFCI), Brigham and Women's Physicians Organization (BWPO), or Partners working at the Francis Street complex of Brigham and Women's Hospital (either part-time or full-time)
  • 18 years of age or older
  • successfully and intentionally lost at least 10lbs within the past 18 months
  • had a BMI over 25 at some point over the previous 18 months

Exclusion Criteria:

  • plan to change jobs outside of the BWH Francis Street complex in the next year
  • had weight-loss surgery in the past 3 years
  • currently on a very low calorie (800 or fewer calories) liquid diet or taking weight loss medicine
  • currently have cancer, a severe psychiatric disorder, an eating disorder, or another severe medical illness that may affect weight beyond control
  • plan to become pregnant in the next year

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: La prévention
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Seul

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Aucune intervention: Control
Control Participants will complete weekly weigh-ins and receive emails about how their current weight compares to their baseline weight.
Expérimental: Deposit Contract
The deposit contract group will also complete weekly weigh-ins and receive emails about how their current weight compares to their baseline weight. In addition, the deposit contract group will be asked to make a deposit of at least $100 each 10-week period over the course of one year (50 weeks). Each week, they will recoup 1/10 of their 10-week deposit if they are within two pounds of their baseline weight or lower. If they are more than two pounds above their baseline weight, they will forfeit 1/10 of their 10-week deposit. The money they forfeited for that week will go into a collective pool to be divided up at the end of each 10-week period by all deposit contract participants who successfully maintained their weight loss at the end of the 10-week period.
Comportemental: Deposit Contract
A deposit contract (DC) is an agreement in which study participants puts their own money at risk, with the goal of "earning" it back by achieving a goal, in this case maintaining prior weight loss. If DC participants successfully maintain their weight, they get their money back. If they are not successful, they lose their money. For each 10 week period for one year, DC participants will make a deposit of at least $100 but will be allowed to increase their contribution if they would prefer.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Weight
Délai: Weekly weigh-ins from baseline until the end of the study (about 1 year from April 2016-August 2017).
Primary outcome measure will be the difference in weight in pounds between their baseline trial weight and their weight at 1 year, controlling for age, sex, race, and baseline weight.
Weekly weigh-ins from baseline until the end of the study (about 1 year from April 2016-August 2017).

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Success in meeting weight goal
Délai: Weekly weigh-ins from baseline until the end of the study (about 1 year from April 2016-August 2017).
The binary variable of whether subjects met their goal at the end of one year will be assessed with logistic regression.
Weekly weigh-ins from baseline until the end of the study (about 1 year from April 2016-August 2017).
Number of weeks in which subjects met their weight goal
Délai: Weekly weigh-ins from baseline until the end of the study (about 1 year from April 2016-August 2017).
The number of weeks in which subjects met their weight goal will be assessed with linear regression.
Weekly weigh-ins from baseline until the end of the study (about 1 year from April 2016-August 2017).
Number of participants who report factors of weight maintenance success as assessed by questionnaires
Délai: At Baseline (~April-August 2016) and at completion (~June-August 2017)
Surveys at baseline and at follow-up will assess a variety of factors associated with weight maintenance, such as how participants have lost and are seeking to lose weight; how satisfied they are with their weight; their motivation and confidence in losing and maintaining weight loss; and behaviors such as diet, exercise habits, and screen time. These factors will be examined with basic descriptive statistics. Survey analysis will assess whether some of these factors, specifically confidence and motivation to lose or maintain weight, are associated with the primary outcome of weight change at 1 year, using linear regression models.
At Baseline (~April-August 2016) and at completion (~June-August 2017)

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Harvard Pilgrim Health Care

Collaborateurs

Brigham and Women's Hospital

Les enquêteurs

  • Chercheur principal: Jason P Block, MD, MPH, Obesity Prevention Program, Department of Population Medicine, Harvard Medical School, Harvard Pilgrim Health Care Institute, Boston, MA.

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Publications générales

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude

1 juin 2016

Achèvement primaire (Réel)

1 juillet 2018

Achèvement de l'étude (Réel)

30 avril 2020

Dates d'inscription aux études

Première soumission

8 mars 2016

Première soumission répondant aux critères de contrôle qualité

10 mars 2016

Première publication (Estimation)

16 mars 2016

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

30 juillet 2020

Dernière mise à jour soumise répondant aux critères de contrôle qualité

29 juillet 2020

Dernière vérification

1 juillet 2020

Plus d'information

Termes liés à cette étude

Autres numéros d'identification d'étude

  • 1K23HL111211-03 (Subvention/contrat des NIH des États-Unis)

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

OUI

Description du régime IPD

Individual participant data will be made available on a case-by-case basis.

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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