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NCT00739492 · ClinicalTrials.gov registry record · Phase 1
Testing Strategies for Weight Loss, II
A Phase 1 study, sponsored by University of Pennsylvania.
- Completed
- Registry status
- Phase 1
- Development phase
- 66
- Enrollment target
NCT00739492: Completed Phase 1 study, sponsored by University of Pennsylvania.
NCT00739492 is a Phase 1 study that has completed, run by University of Pennsylvania. The registered enrollment target is 66 participants. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00739492, a Phase 1 study, has completed, sponsored by University of Pennsylvania.
- COMPLETED
- Registry status
- Phase 1
- Development phase
- 66 participants
- Enrollment target
Study Summary
In the pilot study, Testing Strategies for Weight Loss, we tested two different approaches using financial incentives to encourage weight loss. In the first, we built on previous work showing the effectiveness of 'deposit contracts', in which subjects are given the opportunity to put their own money at risk if they do not lose weight. In this incentive condition, subjects received a direct payment conditional on daily weight loss, and an optional additional payment based on their own contributions to the deposit contract. We matched their contribution 1:1 to make the option of depositing their own money attractive to this predominantly low SES population. In the second approach we built on our own prior work using lotteries to promote drug adherence. In this incentive condition, participants are entered into a daily lottery, and receive any payoffs they earn from the lottery only if they stay on track with their weight-loss goal. Given their popularity in the general population, lotteries hold the promise of providing a cost-effective means of motivating weight loss and making efforts to lose weight more salient to obese patients. Results from this trial indicate significantly higher weight loss in the incentive arms of the trial than in the control group. The low lost to follow-up rates suggest that this approach to providing daily feedback to keep weight loss salient among participants is feasible. Incentive participants who completed the study called in their daily weights an average 95.8% of the time. 17/19 (89.4%) of subjects deposited money in their deposit contracts and 14/17 participants who made initial deposits either held constant or increased their contributions each month. Subjects in both incentive groups lost significantly more weight on average than subjects in the control group (4.0 lbs) (lottery 13.1 lbs, p = 0.015; deposit contract 14.0 lbs, p = 0.003). Of the subjects not lost to follow-up in the two incentive arms (32 out of 38), all of them los
Interventions
- BEHAVIORAL financial incentives
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 66 participants |
| Start Date | 2008-06 |
| Est. Completion | 2010-01 |
| Phase | Phase 1 |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT00739492
The ClinicalTrials.gov registry entry for NCT00739492 describes a study currently listed as completed, categorized as Phase 1. The registered enrollment target is 66 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is University of Pennsylvania, which has 1,423 total studies on file at ClinicalTrials.gov.
The record links to 0 conditions, and to 1 intervention - of which financial incentives is the first listed.
NCT00739492 reports 0 study locations.
Frequently Asked Questions
What is clinical trial NCT00739492 about?
NCT00739492 is a clinical study titled "Testing Strategies for Weight Loss, II". In the pilot study, Testing Strategies for Weight Loss, we tested two different approaches using financial incentives to encourage weight loss. In the first, we built on previous work showing the effectiveness of 'deposit contracts', in which subjects are given the opportunity to put their own money...
What is the current status of trial NCT00739492?
This trial is currently completed. It is a Phase 1 study. The enrollment target is 66 participants. The study started on 2008-06. Estimated completion is 2010-01.
What interventions are being tested in trial NCT00739492?
The interventions under investigation include: financial incentives (BEHAVIORAL).
Who is sponsoring clinical trial NCT00739492?
This trial is sponsored by University of Pennsylvania, which has 1,423 total clinical trials registered on ClinicalTrials.gov.
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