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NCT03503396 · ClinicalTrials.gov registry record · NA
Alcohol Impaired Driving in the Natural Environment
A NA study, sponsored by University of Missouri-Columbia.
- Completed
- Registry status
- NA
- Development phase
- 48
- Enrollment target
NCT03503396: Completed NA study, sponsored by University of Missouri-Columbia.
NCT03503396 is a NA study that has completed, run by University of Missouri-Columbia. The registered enrollment target is 48 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03503396, a NA study, has completed, sponsored by University of Missouri-Columbia.
- COMPLETED
- Registry status
- NA
- Development phase
- 48 participants
- Enrollment target
Study Summary
This is a pilot study to set up a larger investigation examining predictors of the decision to drive after consuming alcohol. All participants will carry a study provided smartphone and breathalyzer device for the 2 week period of the study. The intervention is that participants are randomly assigned to one of 2 breathalyzer feedback conditions - one where they receive a warning that their results indicate they should not drive and one where they receive no feedback. The study is designed to provide information needed for a larger version with a similar protocol, but also to provide an initial test of project hypotheses as well.
Primary Outcome
Change in number of times driven after drinking per week from pre (4 week TLFB) to post (2 week TLFB). A Timeline Followback (TLFB) is an interview where the participant self-reports their drinking behavior including: where they were drinking, how much they drank of what over what period of time, what location they went to next, how they got there.
Interventions
- BEHAVIORAL BAC Driving Feedback/Warning
- BEHAVIORAL No Feedback
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 48 participants |
| Start Date | 2018-04-02 |
| Est. Completion | 2019-01-20 |
| Phase | NA |
What the finished NCT03503396 record still lists
NCT03503396 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 48 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower).
The record links to 0 conditions, and to 2 interventions - of which BAC Driving Feedback/Warning is the first listed.
NCT03503396 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03503396 about?
NCT03503396 is a clinical study titled "Alcohol Impaired Driving in the Natural Environment". This is a pilot study to set up a larger investigation examining predictors of the decision to drive after consuming alcohol. All participants will carry a study provided smartphone and breathalyzer device for the 2 week period of the study. The intervention is that participants are randomly assigne...
What is the current status of trial NCT03503396?
This trial is currently completed. It is a NA study. The enrollment target is 48 participants. The study started on 2018-04-02. Estimated completion is 2019-01-20.
What interventions are being tested in trial NCT03503396?
The interventions under investigation include: BAC Driving Feedback/Warning (BEHAVIORAL), No Feedback (BEHAVIORAL).
Who is sponsoring clinical trial NCT03503396?
This trial is sponsored by University of Missouri-Columbia, which has 291 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03503396's enrollment target sits among peer trials
48 1381st of 2000 higher than 601 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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