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NCT04959461 · ClinicalTrials.gov registry record · NA
Preventing Impaired Driving Among Adolescents
A NA study, sponsored by Stanford University.
- Completed
- Registry status
- NA
- Development phase
- 198
- Enrollment target
NCT04959461: Completed NA study, sponsored by Stanford University.
NCT04959461 is a NA study that has completed, run by Stanford University. The registered enrollment target is 198 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (86% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04959461, a NA study, has completed, sponsored by Stanford University.
- COMPLETED
- Registry status
- NA
- Development phase
- 198 participants
- Enrollment target
Study Summary
The primary goal of this project is to evaluate the efficacy of webCHAT, a single-session web-intervention, on reducing impaired driving among adolescents receiving behind-the-wheel training at driver education programs.
Primary Outcome
Total number of participants who self-reported an increased frequency of using the specified substance or substance combination in the past 3 months at 3- and/or 6-month-follow-up when compared to baseline, as denoted by a binary variable (1 = increased frequency; 0 = maintained or decreased frequency)
Interventions
- BEHAVIORAL Usual Care
- BEHAVIORAL webCHAT
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 198 participants |
| Start Date | 2022-01-01 |
| Est. Completion | 2025-08-31 |
| Phase | NA |
What the finished NCT04959461 record still lists
NCT04959461 is an interventional study that assigns participants to a tested intervention. The registered 198 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 (86% lower).
The record links to 0 conditions, and to 2 interventions - of which Usual Care is the first listed.
NCT04959461 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04959461 about?
NCT04959461 is a clinical study titled "Preventing Impaired Driving Among Adolescents". The primary goal of this project is to evaluate the efficacy of webCHAT, a single-session web-intervention, on reducing impaired driving among adolescents receiving behind-the-wheel training at driver education programs.
What is the current status of trial NCT04959461?
This trial is currently completed. It is a NA study. The enrollment target is 198 participants. The study started on 2022-01-01. Estimated completion is 2025-08-31.
What interventions are being tested in trial NCT04959461?
The interventions under investigation include: Usual Care (BEHAVIORAL), webCHAT (BEHAVIORAL).
Who is sponsoring clinical trial NCT04959461?
This trial is sponsored by Stanford University, which has 1,744 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04959461's enrollment target sits among peer trials
198 567th of 2000 higher than 1,434 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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