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NCT04445662 · ClinicalTrials.gov registry record · NA
Financial Incentives for Homeless Smokers: A Community-based RCT
A NA study, sponsored by Massachusetts General Hospital.
- Completed
- Registry status
- NA
- Development phase
- 184
- Enrollment target
NCT04445662: Completed NA study, sponsored by Massachusetts General Hospital.
NCT04445662 is a NA study that has completed, run by Massachusetts General Hospital. The registered enrollment target is 184 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (87% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04445662, a NA study, has completed, sponsored by Massachusetts General Hospital.
- COMPLETED
- Registry status
- NA
- Development phase
- 184 participants
- Enrollment target
Study Summary
This community-based randomized controlled trial will test the effect of contingent financial rewards on smoking abstinence among homeless-experienced adult cigarette smokers. Participants will be recruited from 3 Boston Health Care for the Homeless Program locations: a shelter clinic, a day center clinic, and a medical center clinic. All participants will be offered a varenicline prescription and tobacco coaching. Incentive arm participants will receive escalating financial rewards for saliva cotinine levels \<30 ng/ml, assessed 10 times over 12 weeks. Embedded qualitative interviews will explore the mechanisms of on-treatment and post-treatment effects of financial incentives on smoking abstinence in the context of homelessness.
Primary Outcome
Point-prevalent smoking abstinence, defined as self-report of not smoking in the past 7 days and verified by a salivary cotinine level \<10 ng/ml.
Interventions
- DRUG Varenicline
- BEHAVIORAL Financial incentives
- BEHAVIORAL Tobacco coaching
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 184 participants |
| Start Date | 2021-06-10 |
| Est. Completion | 2024-10-24 |
| Phase | NA |
What the finished NCT04445662 record still lists
NCT04445662 is an interventional study that assigns participants to a tested intervention. The registered 184 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (87% lower).
The record links to 0 conditions, and to 3 interventions - of which Varenicline is the first listed.
NCT04445662 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04445662 about?
NCT04445662 is a clinical study titled "Financial Incentives for Homeless Smokers: A Community-based RCT". This community-based randomized controlled trial will test the effect of contingent financial rewards on smoking abstinence among homeless-experienced adult cigarette smokers. Participants will be recruited from 3 Boston Health Care for the Homeless Program locations: a shelter clinic, a day center ...
What is the current status of trial NCT04445662?
This trial is currently completed. It is a NA study. The enrollment target is 184 participants. The study started on 2021-06-10. Estimated completion is 2024-10-24.
What interventions are being tested in trial NCT04445662?
The interventions under investigation include: Varenicline (DRUG), Financial incentives (BEHAVIORAL), Tobacco coaching (BEHAVIORAL).
Who is sponsoring clinical trial NCT04445662?
This trial is sponsored by Massachusetts General Hospital, which has 2,032 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04445662's enrollment target sits among peer trials
184 581st of 2000 higher than 1,417 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA 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
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