NCT01247610

Brief Summary

Attention deficit/hyperactivity disorder (ADHD) has been recognized as a common (5-8%), early-onset, long-term impairing, heterogeneous neuropsychiatric disorder with high heritability. Due to its lifelong impairments up to adulthood, adult ADHD has drawn much more attention in Western studies in the past decade; however, there has been no such study in Asian countries. The ultimate goals of this longitudinal follow-up study are to investigate the outcomes of a cohort of children with attention-deficit/hyperactivity (ADHD) and their healthy controls at young adulthood as the primary aim; and to test whether structural and functional brain connectivity can be endophenotypes of ADHD, to localize the brain area that are corresponding to methylphenidate treatment effects, and to identify the genetic variants corresponding to the persistence of ADHD, treatment effect of methylphenidate, neurocognitive dysfunction, and structural and functional dysconnectivity in the brain as the secondary aims. With the accomplishment of these goals, this study will provide the first-hand data on adult ADHD in non-western countries, and will be one of few world-class studies on the topics of neurocognitive and imaging genomics on adult ADHD.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
390

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2011

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 22, 2010

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 24, 2010

Completed
1 month until next milestone

Study Start

First participant enrolled

January 1, 2011

Completed
5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2015

Completed
Last Updated

September 5, 2021

Status Verified

September 1, 2012

Enrollment Period

5 years

First QC Date

November 22, 2010

Last Update Submit

September 1, 2021

Conditions

Study Arms (2)

ADHD group

Control group

Eligibility Criteria

Age17 Years - 24 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

The sample will consist of (1) 217 adolescents (180 males, 83%) who were diagnosed of ADHD at childhood and followed up by Gau and consented to this follow-up study, and (2) 173 healthy controls (123, Males, 71%) without lifetime ADHD to late adolescence and adulthood. This cohort was established from 2005 to 2008. We will invite them for complete assessments 6 years after their assessments at adolescence according to the original assessment schedules from 2005-2008. The estimated age ranges are 17-24 years old.

You may qualify if:

  • Unaffected sibling (Group 2, n=30): The same sex and handedness unaffected siblings of Group 1 will be recruited. They need to be re-assessed by psychiatric interview to confirm no lifetime diagnosis of ADHD.
  • Good response to MPH (Group 3, n=30): Subjects whose ADHD symptoms meet the DSM-IV symptom criteria at adulthood and who either have DAT1 genes (around 10% of Taiwanese children with ADHD15) or demonstrate good response to MPH based on clinical interview were recruited for offand on-stimulant DSI and resting state fMRI assessments.
  • Non-ADHD (Group 4, n=30): Among healthy controls without lifetime ADHD, the controls who do not have any lifetime psychiatric disorders and who do not have impaired neuropsychological function will be included. The control subjects will be matched for the age, gender, and handedness of Group 1.

You may not qualify if:

  • These subjects will be excluded from the study if they have any of the following criteria: (1) Comorbidity with DSM-IV-TR diagnosis of pervasive developmental disorder, schizophrenia, schizoaffective disorder, delusional disorder, other psychotic disorder, organic psychosis, schizotypal personality disorder, bipolar disorder, depression, severe anxiety disorders or substance use; (2) With neurodegenerative disorder, epilepsy, involuntary movement disorder, congenital metabolic disorder, brain tumor, history of severe head trauma, and history of craniotomy; and (3)With visual or hearing impairments, or motor disability which may influence the process of MRI assessment. In addition, if the control subjects have ODD or CD, they will be excluded.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan Univeristy Hospital

Taipei, Taiwan

Location

Related Publications (1)

  • Chiang HL, Chen YJ, Lin HY, Tseng WI, Gau SS. Disorder-Specific Alteration in White Matter Structural Property in Adults With Autism Spectrum Disorder Relative to Adults With ADHD and Adult Controls. Hum Brain Mapp. 2017 Jan;38(1):384-395. doi: 10.1002/hbm.23367. Epub 2016 Sep 15.

Biospecimen

Retention: SAMPLES WITH DNA

The subjects will receive blood withdrawal. The blood sample will be used for establishing lymphoblastoid cell lines, which will be used for molecular genetic experiments.

MeSH Terms

Conditions

Attention Deficit Disorder with Hyperactivity

Condition Hierarchy (Ancestors)

Attention Deficit and Disruptive Behavior DisordersNeurodevelopmental DisordersMental Disorders

Study Officials

  • Susan Shur-Fen Gau, MD, PhD

    National Taiwan University Hospital & College of Medicine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 22, 2010

First Posted

November 24, 2010

Study Start

January 1, 2011

Primary Completion

December 31, 2015

Study Completion

December 31, 2015

Last Updated

September 5, 2021

Record last verified: 2012-09

Locations