Cash for clean urine: pilot study tests financial incentives for stimulant abstinence
NCT ID NCT05787847
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This pilot study tested whether offering small financial rewards for clean urine samples could help people who use stimulants stay abstinent. 27 participants from a syringe exchange program were randomly assigned to either earn money for negative drug tests or receive health education only. The study aimed to see if incentives could reduce stimulant use in a real-world community setting.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Financial incentives for abstinence
- What this could lead to
- If it works, this could point toward a low-cost way to help people reduce stimulant use in community programs.
- What could go wrong
- This is a very small pilot study with only 27 participants, so results may not apply to larger groups. The effect may be short-lived or not work for everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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27 people
The number who actually took part.
- Started
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Feb 2024
- Finished
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Jul 2024
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * be 18 years or older * report using stimulants in the past 30 days * meet the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) diagnosis for stimulant use disorder at a moderate or severe level (i.e., 6 or more of the 11 criteria) * participation in services at syringe exchange program Exclusion Criteria: * failure to meet one or more inclusionary criteria * individuals who are cognitively impaired by their drug use or psychiatric conditions that could preclude informed consent
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Howard Center
Burlington, Vermont, 05401, United States
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