# Tobacco-Concurrent Addictions in At-Risk Youth in Ottawa

> **NCT04812613** · — · ENROLLING_BY_INVITATION · sponsor: **Ottawa Hospital Research Institute** · enrollment: 520 (estimated)

## Conditions studied

- Tobacco Use
- Substance Use
- Cannabis Use

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT04812613
- **Lead sponsor:** Ottawa Hospital Research Institute
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** ENROLLING_BY_INVITATION
- **Start date:** 2021-03-01
- **Primary completion:** 2026-12-31
- **Final completion:** 2027-12-31
- **Target enrollment:** 520 (ESTIMATED)
- **Last updated:** 2026-03-17

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04812613

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04812613, "Tobacco-Concurrent Addictions in At-Risk Youth in Ottawa". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04812613. Licensed CC0.

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