Biological Markers in Attention Deficit/Hyperactivity Disorder (ADHD)
NCT ID: NCT00001206
Last Updated: 2019-12-16
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
347 participants
OBSERVATIONAL
1985-06-05
2017-05-15
Brief Summary
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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.
Detailed Description
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The second purpose of this protocol is a study of the genetics of Attention-Deficit/Hyperactivity Disorder (ADHD). Subjects who have ADHD, their family members, and controls are studied under this protocol.
Conditions
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Keywords
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Eligibility Criteria
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Inclusion Criteria
Age adjusted dimensional ratings (Conners Rating Scales-Revised, and Strengths and Weaknesses of ADHD and Normal Behavior (SWAN)) of hyperactivity/impulsivity greater than or equal to 95th percentile for index and second sibling. Primary ratings for the index proband will be provided by main teacher.
Up to 150 ADHD probands for reassessment.
Consent and assent obtained in writing.
Exclusion Criteria
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).
INCLUSION REQUIRMENTS-RELATIVES:
Subjects must be relatives of probands.
Consent and assent obtained in writing.
INCLUSION REQUIREMENTS -NORMAL VOLUNTEERS:
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.
EXCLUSIONS - NORMAL VOLUNTEERS:
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).
6 Years
17 Years
ALL
No
Sponsors
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National Institute of Mental Health (NIMH)
NIH
Responsible Party
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Principal Investigators
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Judith L Rapoport, M.D.
Role: PRINCIPAL_INVESTIGATOR
National Institute of Mental Health (NIMH)
Locations
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National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, United States
Countries
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References
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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.
Thapar 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.
LaHoste 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.
Other Identifiers
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85-M-0115
Identifier Type: -
Identifier Source: secondary_id
850115
Identifier Type: -
Identifier Source: org_study_id