Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
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, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (10% higher). 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 |
What the finished NCT00739492 record still lists
NCT00739492 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 66 participants, a relatively small participant target, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (10% higher).
The record links to 0 conditions, and to 1 intervention - of which financial incentives is the first listed.
NCT00739492 does not publish any study locations in the registry export this page uses.
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.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00739492's enrollment target sits among peer trials
66 786th of 2000 higher than 1,203 of 2,000 other Phase 1 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT02584244 · 66 participants · Phase 1
Feasibility of the LUM Imaging System for Detection of Gastrointestinal Cancers
- NCT03067051 · 66 participants · Phase 1
Clinical Study to Assess the Safety and Efficacy of the SpectraCure P18 System
- NCT03754725 · 66 participants · Phase 1
Ferritin and Iron Burden in SAH sIRB
- NCT03875378 · 66 participants · Phase 2
Transdermal Estrogen in Women With Anorexia Nervosa
Similar registry start date
- NCT05988463 · started 2027-01-01 · Phase 1
Dose-Escalation Study of Artesunate Patients With IPF
- NCT07219706 · started 2026-12-10 · NA
Dietary Fiber and Time Restricted Eating
- NCT02831335 · started 2026-12-01
Technical Development of Multi-Parametric Renocerebral MRI
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia