Incentivizing Behavior Change Skills to Promote Weight Loss

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Duke University

Status

Completed

Conditions

Obesity

Treatments

Behavioral: incentives for interim weight loss
Behavioral: incentives for both
Behavioral: incentives for dietary self-monitoring

Study type

Interventional

Funder types

Other
NIH

Identifiers

NCT02691260
Pro00056410
1R34HL125669-01A1 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

The purpose of this study is to determine the feasibility of providing incentives to people enrolled in a weight-loss program for dietary self-monitoring and/or interim weight loss.

Full description

In this study, community outpatients will participate in an effective, 24-week, low-carbohydrate weight loss program delivered via biweekly group classes. An innovative information technology (IT) solution will collate dietary self-monitoring data (input by patients via a mobile phone dietary application) and weight loss data (input by patients via remote scale). An algorithm will classify participants as achieving adequate or inadequate dietary self-monitoring and weight loss to earn intermittent rewards of varying value in real-time. Participants will be notified of earning rewards via text messaging.

Enrollment

105 patients

Sex

All

Ages

18 to 70 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • desire to lose weight;
  • agree to attend visits per protocol;
  • access to telephone and transportation;
  • English speaking;
  • able to complete study measures;
  • smart phone with data and texting plan;
  • body mass index 30 kg/m2 or greater

Exclusion criteria

  • pregnancy, breastfeeding, or lack of birth control if premenopausal
  • dementia, excessive alcohol use, or psychiatric illness
  • weight loss >4.5 kg in month prior to screening
  • weight > 380 lb (due to limit of cellular scale)
  • enrollment in other weight loss program
  • residing in nursing home or receiving home health care
  • unable to attend weight loss group at scheduled times
  • impaired hearing
  • medication other than metformin, incretin mimetics and incretin enhances for type 2 diabetes
  • unstable heart disease in 3 months prior to screening
  • furosemide 40 mg or higher (or equivalent)
  • chronic kidney disease
  • 2 or more errors on cognitive screener
  • blood pressure ≥160/100 mmHg

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Factorial Assignment

Masking

Double Blind

105 participants in 4 patient groups

no incentives
No Intervention group
Description:
Participants do not receive financial incentives.
incentives for dietary self-monitoring
Active Comparator group
Description:
Participants receive financial incentives for dietary self-monitoring.
Treatment:
Behavioral: incentives for dietary self-monitoring
incentives for interim weight loss
Active Comparator group
Description:
Participants receive financial incentives for interim weight loss.
Treatment:
Behavioral: incentives for interim weight loss
incentives for both
Experimental group
Description:
Participants receive incentives for dietary self-monitoring and interim weight loss.
Treatment:
Behavioral: incentives for both

Trial documents
2

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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