Validation of the Drug Impaired Driving Scenario (DIDS) on the CRCDS-miniSim
Public ClinicalTrials.gov record NCT04970342. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Validation of the Drug Impaired Driving Scenario (DIDS) on the CRCDS-miniSim: Evaluating Sensitivity to the Effects of Cannabis and Alprazolam
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Subjects will participate in a 4-visit study protocol at the National Advanced Driving Simulator, part of the University of Iowa, in which they will be asked to complete assorted questionnaires, computerized cognitive tasks, and a simulator drive. Subjects will be administered 0.75 mg alprazolam (Xanax) or placebo and 500 mg vaporized cannabis (6.18% THC / \<0.025% CBD) or placebo (0% THC / 0% CBD). The primary objective of this study is to validate the Drug Impaired Driving Scenario (DIDS) using the CRCDS-2 driving simulator by assessing the acute effects of cannabis relative to placebo on simulated driving performance. Assay sensitivity will be demonstrated by the significant effect of 0.75 mg alprazolam (active comparator) on driving and cognitive endpoints.
Study identification
- NCT ID
- NCT04970342
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 13 participants
Conditions and interventions
Conditions
Interventions
- Placebo (Lactose) Capsule Drug
- 0.75 mg Alprazolam Capsule Drug
- Cannabis (6.18% THC / <0.025% CBD) Drug
- Cannabis (0%/ THC / 0% CBD) Drug
Drug
Eligibility (public fields only)
- Age range
- 19 Years to 45 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 15, 2021
- Primary completion
- Aug 20, 2021
- Completion
- Aug 20, 2021
- Last update posted
- Jul 24, 2023
2021
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Advanced Driving Simulator | Iowa City | Iowa | 52242 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04970342, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jul 24, 2023 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04970342 live on ClinicalTrials.gov.