# A Study Testing the Safety and Effects of Single Doses of S1-221 in Healthy Volunteers

> **NCT07146945** · PHASE1 · NOT_YET_RECRUITING · sponsor: **Delphian Therapeutics Australia Pty, Ltd** · enrollment: 84 (estimated)

## Conditions studied

- Healthy Participants

## Interventions

- **DRUG:** S1-221
- **DRUG:** Placebo
- **DRUG:** THC

## Key facts

- **NCT ID:** NCT07146945
- **Lead sponsor:** Delphian Therapeutics Australia Pty, Ltd
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** NOT_YET_RECRUITING
- **Start date:** 2025-08-30
- **Primary completion:** 2026-02-22
- **Final completion:** 2026-02-28
- **Target enrollment:** 84 (ESTIMATED)
- **Last updated:** 2025-08-28


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07146945

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07146945, "A Study Testing the Safety and Effects of Single Doses of S1-221 in Healthy Volunteers". Retrieved via AI Analytics 2026-06-23 from https://api.ai-analytics.org/clinical/NCT07146945. Licensed CC0.

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