Clinical trial Recruiting at 1 site Observational Ages 18 to 55

Diagnosing neurodevelopmental disorders in adults

Official title: Descriptive Study of Adult Patients Diagnosed Later with a Neurodevelopmental Disorder and Their Management

Run by Hospices Civils de Lyon · NCT06691048 · Data updated 2026-11-12

This study is looking to see how we can better identify neurodevelopmental disorders like ADHD and autism in adults who were diagnosed after 18, so they can get the support they need.

Quick facts

Study typeObservational
Ages18 Years to 55 Years
SexAll
Enrollment300 (estimated)
SponsorHospices Civils de Lyon
Academic / other
Locations1 site (Bron)
StatusRecruiting
StartedJanuary 8, 2024
Main results expectedMay 15, 2024
Study endsDecember 1, 2024
Registry record updatedNovember 15, 2024
Trial IDNCT06691048 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are men and women aged 18 to 55 who have been diagnosed with a neurodevelopmental disorder after the age of 18.

Probably not a fit

Patients with intellectual disabilities or serious psychiatric comorbidities 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

This observational study focuses on identifying neurodevelopmental disorders in adults who were diagnosed after the age of 18. It aims to address the significant number of individuals who remain untreated and symptomatic into adulthood, highlighting the need for a diagnostic pathway for lifelong care. The study will evaluate adults with various neurodevelopmental disorders, including ADHD and autism spectrum disorders, to better understand their cognitive dysfunctions and challenges in socio-professional integration.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnosis and treatment pathways for adults with neurodevelopmental disorders, enhancing their quality of life.

How similar studies have gone: While there is ongoing research into neurodevelopmental disorders, this specific focus on late diagnosis in adulthood is relatively novel and less explored.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Men or women aged 18 or over
* Men or women under 55 years of age
* Patients with a neurodevelopmental disorder according to the latest DSM5 criteria diagnosed after age 18
* Patient with sufficient visual and auditory skills, oral and written language in French accessible to clinical and neuropsychological evaluation.

Exclusion Criteria:

* Patients with intellectual disabilities
* Patients with serious addictive and/or psychiatric comorbidities

Where it's running

  • Hospices Civils de Lyon
    Bron, France
    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.