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Autism Spectrum DisordersNCT01361503

Magnetic Resonance Spectroscopic and Diffusion Tensor Imaging of Adolescents with Autism Spectrum Disorders

An observational study of Autism Spectrum Disorders, run by Massachusetts General Hospital at 2 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary objective of this study is to conduct magnetic resonance spectroscopic (MRS) and imaging (MRI) scans to assess the structural and neurochemical profile of the brain in 20 children and adolescents, 6-17 years old with Autism Spectrum Disorder (ASD). Read more about this study

Who is it for?
Ages 6 to 17 yearsHealthy volunteers can take part
Conditions the study is for
Autism Spectrum Disorders
How many people
20 participants
Where
2 sitesUnited States
Study dates
Apr 2010to Sep 2014
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 6 to 17 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Study population: Subjects will be recruited from current patients of The Alan and Lorraine Bressler Clinic for Autism Spectrum Disorders. We propose to contact by letter (via regular mail or email) or telephone patients who have been identified by clinicians as expressing interest in the study. Subjects who have participated in previous protocols in our program may also be eligible to participate in this study. We propose to contact by letter or telephone past study participants who have expressed interested in being contacted about future studies they may be eligible for in our office. If a potential subject's clinician ascertains that the patient has an interest in study participation, the clinician will only offer contact information for the study to the patient and/or the patient's parents. The patient and/or parent can then contact the study coordinator for more information on the actual study.

Who may be able to join

  • Male or female participants between 6 and 17 years of age.
  • Fulfills diagnosis of autism spectrum disorders by meeting DSM-IV-TR PDD diagnostic criteria for autistic disorder, Asperger's disorder, or PDD-NOS as established by clinical interview.
  • Subjects and their legal representative must have a level of understanding sufficient to communicate intelligently with the investigator and study coordinator, and to cooperate with all tests and examinations required by the protocol.
  • Subjects and their legal representative must be considered reliable reporters.
  • Each subject and his/her authorized legal representative must understand the nature of the study. The subject's authorized legal representative and the subject must sign an IRB approved informed consent and assent document respectively.
  • Participants with disruptive behavior disorders, mood and anxiety disorders will be allowed to participate in the study provided they do not meet any exclusionary criteria.

Who cannot join

  • IQ < 85.
  • DSM-IV-TR PDD diagnoses of Rett's disorder, or childhood disintegrative disorder.
  • Current diagnosis of a psychotic disorder or unstable bipolar disorder.
  • History of recent or current (past 30 days) clinically significant depressive or anxiety disorder that warrants treatment.
  • History of substance use (except nicotine or caffeine) within past 3 months or urine drug screen positive for substances of abuse.
  • Clinically unstable psychiatric conditions or judged to be at serious safety risk to self (suicidal risk) or others.
Show all 14Show fewer
  • Subjects with a medical condition or treatment that will either jeopardize subject safety or affect the scientific merit of the study.
  • Organic brain disorders.
  • History of non-febrile seizures without a clear and resolved etiology in last 1 month.
  • Pregnant or nursing females.
  • Left hand dominant subjects.
  • History of claustrophobia or fear of enclosed places.
  • Presence of metal or surgical devices (aneurysm clips, metal plates, cochlear implants, neurostimulators, braces, and other items).
  • Investigator and his/her immediate family; defined as the investigator's spouse, parent, child, grandparent, or grandchild.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • McLean Hospital

    Belmont, Massachusetts, 02478

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

Other trials in United States

About this study

The primary objective of this study is to conduct magnetic resonance spectroscopic (MRS) and imaging (MRI) scans to assess the structural and neurochemical profile of the brain in 20 children and adolescents, 6-17 years old with Autism Spectrum Disorder (ASD). For comparison, MRS and MRI will also be obtained from 10 healthy control subjects, matched to the 20 subjects with ASD in age, sex, dexterity, and IQ. All eligible subjects will be administered a detailed assessment battery consisting of cognitive assessments (neuropsychological battery including subsets of the DANVA2 and the CANTAB) and measures of psychosocial functioning (SAICA and M-FES). The study includes 1-3 visits for the screening period at Massachusetts General Hospital (approximately 4 hours of assessments) and one scanning visit at McLean Hospital (approximately 1.5 hours).

The investigators hypothesize that youth with ASD versus controls will exhibit increased glutamate concentrations, reflecting glutamatergic overactivity, and increased Cho concentrations, suggesting neuronal abnormality. Furthermore, the investigators hypothesize that compared to neurotypical controls, the structural integrity of white mater tracts will be disrupted in ASD.

Keywords
Autism Spectrum Disorders, Pervasive Developmental Disorders, Asperger's Syndrome, Adolescents, Magnetic Resonance Spectroscopy, Diffusion Tensor Imaging
Medical subject headings
Autism Spectrum Disorder, Child Development Disorders, Pervasive, Asperger Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT01361503
Study groupRoleWhat they receive
Autism Spectrum Disorder (ASD)Not described
ControlsNot described

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Structural and neurochemical profiles of adolescents with ASD

    Concentrations of various neurochemicals, including glutamate, will be examined in addition to the structural integrity of white matter tracts. These results will be compared to results from control subjects.

    Measured: scanning visit (1.5 hours)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 May 2011 (estimated)
  2. Study startApr 2010
  3. Primary completionSep 2014
  4. Study completionSep 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Cross-sectional
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01361503
Sponsor's protocol ID
2010-P-000185
Status last verified
Dec 2024
First submitted
19 Nov 2010
Last updated
13 Dec 2024
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Autism Spectrum Disorders, run by Massachusetts General Hospital at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Dec 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Structural and neurochemical profiles of adolescents with ASD (time frame: scanning visit (1.5 hours)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Dec 2024.

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