Clinical trial Recruiting at 1 site Observational Ages 9 to 25

Optimizing youth mental health trajectories

Official title: Behavioural Development, Long-term Outcomes and Opportunities to Optimize Youth Mental Health Trajectories

Run by Douglas Mental Health University Institute · NCT06978452 · Data updated 2026-11-12

This study is trying to understand how mental health changes in young people aged 9 to 25 over five years to see if we can help prevent problems like depression and ADHD.

Quick facts

Study typeObservational
Ages9 Years to 25 Years
SexAll
Enrollment560 (estimated)
SponsorDouglas Mental Health University Institute
Academic / other
Locations1 site (Montreal, Quebec)
StatusRecruiting
StartedJuly 1, 2024
Main results expectedJuly 1, 2029
Study endsJuly 1, 2029
Registry record updatedMay 18, 2025
Trial IDNCT06978452 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are youth aged 9 to 25 who can read and understand French or English and have a parent or guardian available for consent if under 18.

Probably not a fit

Patients who are outside the age range of 9 to 25 or do not have any mental health concerns or relevant family history may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The BLOOM project aims to create personalized longitudinal profiles of mental health in youth aged 9 to 25 by following them annually for five years. It focuses on identifying antecedents and outcomes related to mental health disorders, including depression and ADHD, to predict clinical outcomes and optimize health trajectories. Participants will be recruited from various sources, including those with and without existing mental health diagnoses, to assess their needs and eligibility for preventive interventions. The study employs an accelerated longitudinal design to efficiently cover a long developmental period within a short timeframe.

Why it matters

Potential benefit: If successful, this study could lead to improved prediction and prevention of mental health disorders in youth.

How similar studies have gone: While similar studies have explored youth mental health trajectories, this approach of integrating both help-seeking and non-help-seeking populations for predictive modeling is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Youth between 9 to 25 years of age at inclusion, who are able to read and understand either French or English, with at least one parent or legal guardian available to consent for those under 18 years of age.

Specific eligibility criteria:

Help-seeking group: At least one help-seeking contact made with a primary care clinical service provider or agency (e.g, paediatric/family physician clinic, CLSC or Aire Ouverte) for a mental health concern (i.e., clinical needs).

Non help-seeking group:

At least one of the birth parents or siblings have received psychiatric care for a diagnosis of DMDs (i.e., family needs) OR Being in contact with community agencies that provide youth-centred social services for food, housing, social discrimination (e.g., racialized youth, LGBTQ2SIA+) (i.e., social needs) OR Having a diagnosed chronic physical illness that is expected to require treatment for \>12 months (e.g., diabetes, asthma to name a few) (i.e., physical health needs)

Exclusion Criteria:

* Due to the requirements of assessment procedures, youth who cannot communicate verbally due to known neurological conditions or intellectual disabilities will not be included. Youth who are already diagnosed with one of the DMDs by a physician and currently prescribed a treatment targeting the diagnosed condition (pharmacological or psychotherapeutic interventions), will not be eligible for inclusion.

Importantly, no one will be excluded based on sex, gender, health insurance status, ethnicity, income status, ability to travel or living arrangements. If a participant initially approached through the referral pathways for non help-seeking individuals turns out to have had at least one help-seeking contact for a mental health concern (i.e., clinical needs), the participant will still be included but classified as part of the help-seeking group. We anticipate non help-seeking referrals to satisfy more than one criteria. Their occurrence and distribution will be recorded in detail as part of our assessment procedure.

Where it's running

  • Centre intégré universitaire de santé et de services sociaux (CIUSSS) de l'Ouest-de-l'Île-de-Montréal
    Montreal, Quebec, Canada
    Recruiting

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.