Examine the Feasibility of a Standardized Field Test for Marijuana and Alcohol Impairment: Laboratory Evaluations
Public ClinicalTrials.gov record NCT04856566. 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.
Study identification
- NCT ID
- NCT04856566
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Early Phase 1
- Lead sponsor
- Yale University
- Other
- Enrollment
- 41 participants
Conditions and interventions
Conditions
Interventions
- 0.05 BAC Alcohol Drug
- 0.08 BAC Alcohol Drug
- High Marijuana, Hash, THC, or Grass Drug
- Low Marijuana, Hash, THC, or Grass Drug
- Placebo Drug
Drug
Eligibility (public fields only)
- Age range
- 21 Years to 40 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 27, 2021
- Primary completion
- Aug 22, 2023
- Completion
- Aug 22, 2023
- Last update posted
- Jun 30, 2025
2021 – 2023
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Hartford Hospital | Hartford | Connecticut | 06106 | — |
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 NCT04856566, 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 Jun 30, 2025 · Synced May 19, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04856566 live on ClinicalTrials.gov.