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NCT04224727
The Impact of Group Commitment Contracts on Smoking Cessation and Weight Loss
NA trial testing Group Commitment Contract in Smoking Cessation in 3,600 participants. Suspended.
19 June 2025
Quick facts
| Lead sponsor | National Bureau of Economic Research, Inc. |
|---|---|
| Phase | NA |
| Status | Suspended |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | parallel |
| Masking | none |
| Primary purpose | prevention |
| Enrollment | 3,600 |
| Start date | 18 December 2023 |
| Primary completion | 19 June 2025 |
| Estimated completion | 19 June 2025 |
| Sites | 1 location across United States |
Drugs / interventions tested
- Group Commitment Contract
- Individual Monetary Rewards
- Individual Commitment Contract
- Information
Conditions studied
- Smoking Cessation — all drugs for Smoking Cessation →
- Weight Loss — all drugs for Weight Loss →
Sponsor
National Bureau of Economic Research, Inc.
Who can join
18 and older, any sex, with Smoking Cessation or Weight Loss. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
We will conduct a randomized controlled trial to evaluate the effectiveness of group commitment contracts for smoking cessation and weight loss.
Publications & conference data
No peer-reviewed publications indexed yet for this trial.
Verify or expand the search:
- PubMed search for NCT04224727
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
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Trials by the same sponsor.
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT04224727 (US National Library of Medicine, public domain)
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by National Bureau of Economic Research, Inc.
- Last refreshed: 16 April 2024
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04224727.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing