# Effects of Delta9-tetrahydrocannabinol (THC) on Retention of Memory for Fear Extinction Learning in PTSD: R33 Study

> **NCT04080427** · PHASE1 · COMPLETED · sponsor: **Wayne State University** · enrollment: 102 (actual)

## Conditions studied

- Posttraumatic Stress Disorder

## Interventions

- **DRUG:** Placebo capsule
- **DRUG:** Dronabinol 7.5 milligram oral capsule

## Key facts

- **NCT ID:** NCT04080427
- **Lead sponsor:** Wayne State University
- **Sponsor class:** OTHER
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-04-15
- **Primary completion:** 2025-05-31
- **Final completion:** 2025-05-31
- **Target enrollment:** 102 (ACTUAL)
- **Last updated:** 2025-07-11

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04080427

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04080427, "Effects of Delta9-tetrahydrocannabinol (THC) on Retention of Memory for Fear Extinction Learning in PTSD: R33 Study". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT04080427. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*