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Brigham and Women's Healthy Weight Study

29 juli 2020 bijgewerkt door: 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.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

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.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

42

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • Verenigde Staten
    • Massachusetts
      • Boston, Massachusetts, Verenigde Staten, 02115
        • Brigham and Women's Hospital

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Ja

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

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

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Preventie
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Enkel

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Geen tussenkomst: Control
Control Participants will complete weekly weigh-ins and receive emails about how their current weight compares to their baseline weight.
Experimenteel: 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.
Gedragsmatig: 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.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Weight
Tijdsspanne: 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).

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Success in meeting weight goal
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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)

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Harvard Pilgrim Health Care

Medewerkers

Brigham and Women's Hospital

Onderzoekers

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

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Algemene publicaties

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start

1 juni 2016

Primaire voltooiing (Werkelijk)

1 juli 2018

Studie voltooiing (Werkelijk)

30 april 2020

Studieregistratiedata

Eerst ingediend

8 maart 2016

Eerst ingediend dat voldeed aan de QC-criteria

10 maart 2016

Eerst geplaatst (Schatting)

16 maart 2016

Updates van studierecords

Laatste update geplaatst (Werkelijk)

30 juli 2020

Laatste update ingediend die voldeed aan QC-criteria

29 juli 2020

Laatst geverifieerd

1 juli 2020

Meer informatie

Termen gerelateerd aan deze studie

Andere studie-ID-nummers

  • 1K23HL111211-03 (Subsidie/contract van de Amerikaanse NIH)

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

JA

Beschrijving IPD-plan

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

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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