# Comparative Acute Effects of R-MDMA and S-MDMA in Healthy Participants

> **NCT06905652** · PHASE1 · COMPLETED · sponsor: **University Hospital, Basel, Switzerland** · enrollment: 26 (actual)

## Conditions studied

- Healthy

## Interventions

- **DRUG:** R-3,4-methylenedioxymethamphetamine
- **DRUG:** S-3,4-methylenedioxymethamphetamine
- **OTHER:** Placebo

## Key facts

- **NCT ID:** NCT06905652
- **Lead sponsor:** University Hospital, Basel, Switzerland
- **Sponsor class:** OTHER
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2025-07-29
- **Primary completion:** 2026-05-12
- **Final completion:** 2026-05-12
- **Target enrollment:** 26 (ACTUAL)
- **Last updated:** 2026-05-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06905652

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06905652, "Comparative Acute Effects of R-MDMA and S-MDMA in Healthy Participants". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT06905652. Licensed CC0.

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