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Ottawa study aims to help homeless youth cut back on tobacco and drugs

NCT ID NCT04812613

Knowledge-focused Sponsor: Ottawa Hospital Research Institute Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only This study
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at tobacco, cannabis, and other drug use among homeless and at-risk youth in downtown Ottawa. Researchers will follow 520 participants aged 16 and older who are homeless or insecurely housed and have a history of cannabis use and mental illness. The goal is to understand their substance use patterns and test a 6-month support program that includes peer support and a mental health nurse to help reduce use.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
peer support and a licensed mental health and substance use nurse
What this could lead to
If successful, this could point toward effective community-based programs to reduce substance use in at-risk youth.
What could go wrong
This is an early, observational study with no control group, so it cannot prove cause and effect. Results may not apply to other cities or populations.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 520 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2021

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

20 youth and 500 adult participants

Ages

16 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion criteria: * Are currently living in Ottawa for at least 3 months prior to enrolment. * Are homeless or insecurely housed (from OCH and the Bridge). * 16 years or older. * currently use or have a past history of cannabis use * Self-report a mental illness. Exclusion criteria: • Not meeting inclusion criteria

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Conditions

The condition(s) this trial relates to.

nicotine dependence psychiatric disorder substance abuse substance-related disorder Tobacco Use

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Cannabis use Substance use Tobacco use

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • The Bridge Engagement Centre

    Ottawa, Ontario, K1K 4B7, Canada

More trials for these conditions

Other studies related to the condition(s) this trial covers.