deltatrials
Active Not Recruiting INTERVENTIONAL NCT02710331

Ethanol and Cannabinoid Effects on Simulated Driving and Related Cognition: Substudy III (THC-ETOH-III)

Sponsor: Yale University

Conditions Alcohol Effect Cannabis Driving Under the Influence of Alcohol and Other Drugs
Interventions Active Dronabinol Active Ethanol Placebo Placebo
Updated 16 times since 2017 Last updated: Apr 23, 2026 Started: Mar 1, 2016 Primary completion: Dec 1, 2026 Completion: Dec 1, 2026
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT02710331, this observational or N/A phase trial focuses on Alcohol Effect and Cannabis and remains ongoing. Sponsored by Yale University, it has been updated 16 times since 2016, reflecting substantial change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Study Description(click to expand)

To study the effects of ethanol clamped at BAC 0.04% (equivalent to consuming approximately 2 drinks over 1 hour) and oral Dronabinol (10 mg capsule) on driving.

To study the effects of ethanol clamped at BAC 0.04% (equivalent to consuming approximately 2 drinks over 1 hour) and oral Dronabinol (10 mg capsule) on driving.

Status Flow

~Jan 2017 – ~Feb 2017 · 31 days · monthly snapshot~Feb 2017 – ~Jun 2018 · 16 months · monthly snapshot~Jun 2018 – ~Feb 2019 · 8 months · monthly snapshot~Feb 2019 – ~Aug 2019 · 6 months · monthly snapshot~Aug 2019 – ~Jan 2020 · 5 months · monthly snapshot~Jan 2020 – ~Sep 2020 · 8 months · monthly snapshot~Sep 2020 – ~Jan 2021 · 4 months · monthly snapshot~Jan 2021 – ~Feb 2021 · 31 days · monthly snapshot~Feb 2021 – ~Jan 2022 · 11 months · monthly snapshot~Jan 2022 – ~Feb 2023 · 13 months · monthly snapshot~Feb 2023 – ~Dec 2023 · 10 months · monthly snapshot~Dec 2023 – ~Jul 2024 · 7 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~May 2025 · 8 months · monthly snapshot~May 2025 – ~Apr 2026 · 12 months · monthly snapshotApr 28, 2026 – present · 3 months · daily API

Change History

16 versions recorded

  1. Apr 28, 2026 — Present [daily]

    Active Not Recruiting

    Phase: PHASE1 → None

  2. May 2025 — Apr 2026 [monthly]

    Active Not Recruiting PHASE1

  3. Sep 2024 — May 2025 [monthly]

    Active Not Recruiting PHASE1

  4. Jul 2024 — Sep 2024 [monthly]

    Active Not Recruiting PHASE1

  5. Dec 2023 — Jul 2024 [monthly]

    Active Not Recruiting PHASE1

    Status: Recruiting → Active Not Recruiting

▶ Show 11 earlier versions

  1. Feb 2023 — Dec 2023 [monthly]

    Recruiting PHASE1

  2. Jan 2022 — Feb 2023 [monthly]

    Recruiting PHASE1

  3. Feb 2021 — Jan 2022 [monthly]

    Recruiting PHASE1

  4. Jan 2021 — Feb 2021 [monthly]

    Recruiting PHASE1

  5. Sep 2020 — Jan 2021 [monthly]

    Recruiting PHASE1

  6. Jan 2020 — Sep 2020 [monthly]

    Recruiting PHASE1

  7. Aug 2019 — Jan 2020 [monthly]

    Recruiting PHASE1

  8. Feb 2019 — Aug 2019 [monthly]

    Recruiting PHASE1

  9. Jun 2018 — Feb 2019 [monthly]

    Recruiting PHASE1

  10. Feb 2017 — Jun 2018 [monthly]

    Recruiting PHASE1

  11. Jan 2017 — Feb 2017 [monthly]

    Recruiting PHASE1

    First recorded

Mar 2016

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

The overarching goal of this study is to characterize the effects of ethanol and cannabinoids on simulated driving and related cognition.

Contact Information

Sponsor contact:
  • Yale University
Data source: ClinicalTrials.gov

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations