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NCT00158197 · ClinicalTrials.gov registry record · NA
Long-term Behavior Change - 1
A NA study, sponsored by Friends Research Institute.
- Completed
- Registry status
- NA
- Development phase
- 119
- Enrollment target
NCT00158197: Completed NA study, sponsored by Friends Research Institute.
NCT00158197 is a NA study that has completed, run by Friends Research Institute. The registered enrollment target is 119 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (92% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00158197, a NA study, has completed, sponsored by Friends Research Institute.
- COMPLETED
- Registry status
- NA
- Development phase
- 119 participants
- Enrollment target
Study Summary
The purpose of this study is to determine if different reinforcement procedures (i.e., schedules) produce different patterns of long-term abstinence from methamphetamine. We anticipate that the three contingency management conditions will promote longer periods of abstinence in the year following treatment relative to the standard control group. Furthermore, we predict that the intermittent reinforcement procedures will produce longer periods of continued abstinence (i.e., long-term behavior change) in the year following treatment than the continuous reinforcement procedure. Finally, we predict that the intermittent unpredictable schedule will produce longer lasting behavior change than the intermittent predictable schedule. Methamphetamine use will be measured using urine toxicology and self-report of methamphetamine use.
Primary Outcome
Drug use measured by urine toxicology conducted by on site Enzyme-multiplied immunoassay technique (EMIT) assay over time.
Interventions
- BEHAVIORAL contingency management voucher
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 119 participants |
| Start Date | 2004-12 |
| Est. Completion | 2008-06 |
| Phase | NA |
What the finished NCT00158197 record still lists
NCT00158197 is an interventional study that assigns participants to a tested intervention. The registered 119 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 (92% lower).
The record links to 0 conditions, and to 1 intervention - of which contingency management voucher is the first listed.
NCT00158197 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00158197 about?
NCT00158197 is a clinical study titled "Long-term Behavior Change - 1". The purpose of this study is to determine if different reinforcement procedures (i.e., schedules) produce different patterns of long-term abstinence from methamphetamine. We anticipate that the three contingency management conditions will promote longer periods of abstinence in the year following tr...
What is the current status of trial NCT00158197?
This trial is currently completed. It is a NA study. The enrollment target is 119 participants. The study started on 2004-12. Estimated completion is 2008-06.
What interventions are being tested in trial NCT00158197?
The interventions under investigation include: contingency management voucher (BEHAVIORAL).
Who is sponsoring clinical trial NCT00158197?
This trial is sponsored by Friends Research Institute, which has 41 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00158197's enrollment target sits among peer trials
119 803rd of 2000 higher than 1,198 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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