Actively Recruiting

Age: 1Day - 99Years
All Genders
Healthy Volunteers
ID01778504

Diagnosis of Childhood-onset Behavioral, Neuropsychiatric, and Neurodevelopmental Disorders

Led by National Institute of Mental Health (NIMH) · Updated on 2026-06-08

1000

Participants Needed

1

Research Sites

N/A

Total Duration

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AI-Summary

What this Trial Is About

Researchers are investigating childhood-onset behavioral, psychiatric, and developmental disorders, including autism and neurodevelopmental disabilities. This observational study aims to understand how these disorders begin and are treated, focusing on individuals of all ages who have these conditions or related behavioral problems, as well as their family members. The goal is to learn more about these disorders and how they run in families, which may help guide future research and treatment approaches. Participants include children, adolescents, adults, and their relatives such as parents, siblings, and extended family. The study involves detailed medical history reviews, physical exams, and psychiatric evaluations. Brain imaging scans may be performed to assess brain function. Some participants may undergo standard therapeutic interventions to observe their effects. The study also includes periodic follow-up assessments to monitor the progression and natural course of these disorders. During the study, participants will be assessed with medical, sleep, and neurodevelopmental evaluations. Clinical assessments will be ongoing to explore connections between biological factors and neuropsychiatric symptoms. Researchers will collect data to understand symptom patterns and treatment responses over time. Participation may last through multiple visits, offering a chance to observe changes and outcomes in these disorders longitudinally.

CONDITIONS

Brief Title

Studying Childhood-onset Behavioral, Psychiatric, and Developmental Disorders

Who Can Participate

Age: 1Day - 99Years
All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Participants aged from birth to 99 years
  • Diagnosed or undiagnosed neuropsychiatric disorder, neurodevelopmental disability, or abnormal behaviors
  • Ability to understand and sign informed consent for self or minor child, or have a legal guardian or designated decision-maker
  • Under the care of a primary physician
Not Eligible

You will not qualify if you...

  • Unwilling or unable to be evaluated and followed as clinically indicated
  • Lack of a primary healthcare provider

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Diagnostic Evaluation

Duration - Cross-sectional at enrollment

Participants undergo in-depth medical, sleep, and neurodevelopmental assessments to evaluate behavioral, neuropsychiatric, and neurodevelopmental conditions.

1 baseline visit (in-person)

Long-term Monitoring

Duration - Ongoing throughout study participation up to several years

Participants may return periodically for follow-up assessments to monitor the natural and treated courses of their conditions over time.

Periodic follow-up visits as scheduled

Trial Site Locations

Total: 1 location

1

National Institutes of Health Clinical Center

Bethesda, Maryland, United States, 20892

Actively Recruiting

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Research Team

J

Jessica M Vaughan, C.R.N.P.

A

Ashura W Buckley, M.D.

How is the study designed?

Study Type

OBSERVATIONAL

Masking

N/A

Allocation

N/A

Model

N/A

Primary Purpose

N/A

Number of Arms

2

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Published Research Related To This Trial

Validation of a brief quantitative measure of autistic traits: comparison of the social responsiveness scale with the autism diagnostic interview-revised.

John N Constantino, Sandra A Davis, Richard D Todd...

https://pubmed.ncbi.nlm.nih.gov/12959421

Framework for assessing individuals with rare genetic disorders associated with profound intellectual and multiple disabilities (PIMD): the example of Phelan McDermid Syndrome.

Latha Soorya, Jill Leon, M Pilar Trelles...

https://pubmed.ncbi.nlm.nih.gov/29265961

Rapid Eye Movement Sleep Abnormalities in Children with Pediatric Acute-Onset Neuropsychiatric Syndrome (PANS).

Thomas Gaughan, Ashura Buckley, Rebecca Hommer...

https://pubmed.ncbi.nlm.nih.gov/27166296