ClinicalTrials.gg
CompletedNCT00549731Updated Apr 24, 2026

Participant Database for Autism Research Studies

An observational study in Autism Spectrum Disorder, sponsored by Massachusetts General Hospital. Completed at 1 site in United States. Open to participants aged 14 Years to 32 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-24.

Primary conditionAutistic DisorderRegistry: Autism Spectrum DisorderReclassifiedWhy we changed it
Registry
Autism Spectrum Disorder — the first condition term the registry derived for this study.
ClinicalTrials.gg
Autistic Disorder
Why
  1. The study's listed conditions name Autistic Disorder, a narrower term within Autism Spectrum Disorder.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Massachusetts General Hospital · Observational

Study type
Observational
Model
Other
Time perspective
Other
Enrollment
40
Ages
14 Years to 32 Years
Sex
All
01

Study summary

The purpose of this study is to create a subject database to recruit for current and future studies in research on autism and other neurodevelopmental disabilities.

Read the detailed description

Aim 1: to recruit people interested in research on autism and other neurodevelopmental disabilities

Aim 2: to complete a diagnostic assessment, to confirm the diagnosis of autism spectrum disorder or other developmental disability (e.g., developmental language delay) in our patient population and rule out a diagnosis of autism spectrum disorder and other comorbid conditions in our control group

Aim 3: to maintain subject information in a database, from which we can recruit for our studies

02

Conditions studied

  • Autism Spectrum Disorder

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Keywords

  • autism
  • autistic
  • language
  • development
  • developmental
  • assessment
03

In context

Autistic Disorder Reclassified

1,030 studies on the registry are indexed under Autistic Disorder; 266 are open to participants now.

This study's enrollment of 40 is below the median of 101 across 189 observational studies indexed under Autistic Disorder.

Browse Autistic Disorder studies →

Lead sponsor

Massachusetts General Hospital is the lead sponsor of 2,586 studies on the registry; 447 are open to participants now.

Of its 222 completed or terminated interventional studies of FDA-regulated products, 168 (76%) have results posted.

Compared within Autistic Disorder, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Autism Spectrum Disorder. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
14 Years to 32 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Adult/Pediatric

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Typically-developing, healthy adolescents and adults (ages 14-32)
  • Adolescents and adults with autism spectrum disorder (ages 14-32)

Exclusion criteria

Exclusion Criteria:

  • Extreme premature birth (\<34 weeks)
  • Known genetic disorders related to autism (e.g. Fragile X)
  • Recent diagnosis of psychosis (within 6 months)
  • Some other psychiatric diagnoses may be excluded following screening (e.g. Tourette's syndrome).
  • Metal implants / permanent retainers / hair dyes with metallic components
05

Study design

Observational model
Other
Time perspective
Other
Enrollment
40 participants (actual)

Groups and cohorts

  • Healthy individuals

    No intervention Healthy participants ages 14-32 for a neuroimaging study.

  • Individuals with Autism Spectrum Disorder

    No intervention ASD participants ages 14-32 for a neuroimaging study.

06

Study locations

1 site
  • Martinos Center of Biomedical Imaging
    Charlestown, Massachusetts 02129, United States
07

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 24, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00549731
Responsible party
Tal Kenet (Associate Professor, Massachusetts General Hospital) — Principal investigator
First posted
Oct 26, 2007
Start date
Jun 2013
Primary completion
Jun 2023
Completion
Jun 2023
Last update
Apr 24, 2026

Study contacts

Tal Kenet, Ph.D
principal investigator · Massachusetts General Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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