# Reducing the Harmful Effects of Cannabis Use: Finding the Optimal CBD:THC Ratio

> **NCT05170217** · NA · COMPLETED · sponsor: **King's College London** · enrollment: 46 (actual)

## Conditions studied

- Cannabis Use

## Interventions

- **DRUG:** THC
- **DRUG:** Cannabidiol
- **DRUG:** Cannabidiol
- **DRUG:** Cannabidiol

## Key facts

- **NCT ID:** NCT05170217
- **Lead sponsor:** King's College London
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-11-08
- **Primary completion:** 2019-06-09
- **Final completion:** 2019-06-09
- **Target enrollment:** 46 (ACTUAL)
- **Last updated:** 2021-12-27


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05170217

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05170217, "Reducing the Harmful Effects of Cannabis Use: Finding the Optimal CBD:THC Ratio". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT05170217. Licensed CC0.

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