Biological Markers in Attention Deficit/Hyperactivity Disorder (ADHD)
Biological Markers in Childhood Psychiatric Disorders
2 other identifiers
observational
347
1 country
1
Brief Summary
The purpose of this study is to evaluate individuals with Attention Deficit/Hyperactivity Disorder (ADHD) to learn more about the genetics of the disease. This study is part of other ongoing studies of individuals with ADHD. The study participants have already undergone neurobiological measurements, particularly magnetic resonance imaging (MRI) of the brain, through other research studies. As a follow-up to these studies, participants will next undergo psychiatric interviews, neuropsychological tests, and another MRI. In addition to the clinical evaluation of the participants, further research will be conducted on the genetics of ADHD. These genetic studies will evaluate people with ADHD as well as their family members and a control group of healthy people.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jun 1985
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 5, 1985
CompletedFirst Submitted
Initial submission to the registry
November 3, 1999
CompletedFirst Posted
Study publicly available on registry
November 4, 1999
CompletedStudy Completion
Last participant's last visit for all outcomes
May 15, 2017
CompletedDecember 16, 2019
May 15, 2017
November 3, 1999
December 13, 2019
Conditions
Keywords
Eligibility Criteria
You may not qualify if:
- Presence of other known genetic conditions that are likely to be etiologic.
- Onset of medical conditions that could produce symptoms of ADHD through non-genetic mechanisms (e.g., thyroid disorders, seizure disorders, inborn errors of metabolism, extremely low birth weight (less than 1000 gm), meningitis, intracranial pathology).
- Presence of other psychiatric disorders that can produce symptoms similar to ADHD (e.g., major depression, bipolar disorder, severe anxiety disorders, pervasive developmental disorders, psychotic disorders, post-traumatic stress disorder).
- Presence of neuropsychiatric conditions that may confound evaluation of ADHD (e.g., Tourette's syndrome, obsessive-compulsive disorder, or PANDAS (pediatric autoimmune neuropsychiatric disorders associated with streptococcus), intelligence quotient less than 80, reading achievement standard scores less than 75 or reading-intelligence discrepancy greater than 2 SD).
- Subjects must be relatives of probands.
- Consent and assent obtained in writing.
- Up to 150 newly accrued normal volunteers unrelated to probands.
- Same age range as probands.
- Parent and teacher ratings within one SD of population means on ADHD/hyperactivity factors.
- Consent and assent obtained in writing.
- Presence of ADHD.
- Presence of any other psychiatric disorders on structured psychiatric interview (DICA-IV).
- Presence of known genetic conditions.
- Onset, presence or history of medical conditions that could produce symptoms of ADHD through non-genetic mechanisms (e.g., thyroid disorders, seizure disorders, inborn errors of metabolism, extremely low birth weight (less than 1000 gm), meningitis, intracranial pathology).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, 20892, United States
Related Publications (3)
Hauser ER, Boehnke M, Guo SW, Risch N. Affected-sib-pair interval mapping and exclusion for complex genetic traits: sampling considerations. Genet Epidemiol. 1996;13(2):117-37. doi: 10.1002/(SICI)1098-2272(1996)13:23.0.CO;2-5.
PMID: 8722742BACKGROUNDThapar A, Hervas A, McGuffin P. Childhood hyperactivity scores are highly heritable and show sibling competition effects: twin study evidence. Behav Genet. 1995 Nov;25(6):537-44. doi: 10.1007/BF02327577.
PMID: 8540892BACKGROUNDLaHoste GJ, Swanson JM, Wigal SB, Glabe C, Wigal T, King N, Kennedy JL. Dopamine D4 receptor gene polymorphism is associated with attention deficit hyperactivity disorder. Mol Psychiatry. 1996 May;1(2):121-4.
PMID: 9118321BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Judith L Rapoport, M.D.
National Institute of Mental Health (NIMH)
Study Design
- Study Type
- observational
- Sponsor Type
- NIH
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 3, 1999
First Posted
November 4, 1999
Study Start
June 5, 1985
Study Completion
May 15, 2017
Last Updated
December 16, 2019
Record last verified: 2017-05-15