# Effect of Methylenedioxymethamphetamine (MDMA) (Serotonin Release) on Fear Extinction

> **NCT03527316** · EARLY_PHASE1 · COMPLETED · sponsor: **University Hospital, Basel, Switzerland** · enrollment: 30 (actual)

## Conditions studied

- Healthy

## Interventions

- **DRUG:** MDMA
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT03527316
- **Lead sponsor:** University Hospital, Basel, Switzerland
- **Sponsor class:** OTHER
- **Phase:** EARLY_PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-10-18
- **Primary completion:** 2020-12-10
- **Final completion:** 2020-12-24
- **Target enrollment:** 30 (ACTUAL)
- **Last updated:** 2022-01-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03527316

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03527316, "Effect of Methylenedioxymethamphetamine (MDMA) (Serotonin Release) on Fear Extinction". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT03527316. Licensed CC0.

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