# Longitudinal Study of Xenon-129 MRI Imaging Effects of Cannabis Smoking

> **NCT03909477** · — · RECRUITING · sponsor: **Western University, Canada** · enrollment: 200 (estimated)

## Conditions studied

- Cannabis Use
- Cannabis Smoking
- Marijuana Smoking
- Marijuana Usage

## Interventions

- **DIAGNOSTIC_TEST:** Hyperpolarized Xenon-129 MRI of the lungs
- **DIAGNOSTIC_TEST:** Computed Tomography (CT)
- **DIAGNOSTIC_TEST:** Pulmonary Function Tests (PFTs)
- **DIAGNOSTIC_TEST:** Six Minute Walk Test (6MWT)
- **DIAGNOSTIC_TEST:** Cardiopulmonary exercise testing (CPET)
- **DIAGNOSTIC_TEST:** Sputum analysis
- **DIAGNOSTIC_TEST:** Blood analysis

## Key facts

- **NCT ID:** NCT03909477
- **Lead sponsor:** Western University, Canada
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2022-06-01
- **Primary completion:** 2030-12-01
- **Final completion:** 2030-12-01
- **Target enrollment:** 200 (ESTIMATED)
- **Last updated:** 2025-08-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03909477

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03909477, "Longitudinal Study of Xenon-129 MRI Imaging Effects of Cannabis Smoking". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT03909477. Licensed CC0.

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