NCT03679403

Brief Summary

Attention deficit/hyperactivity disorder (ADHD) is a common (3-10%), early-onset, clinically and genetically heterogeneous neuropsychiatric disorder with lifelong neuropsychological deficits. Despite many imaging studies on ADHD across countries, only few longitudinal studies investigated the developmental changes of structural and functional brain connectivity and some imaging studies using unaffected sibling design in western countries. There is no published data regarding developmental changes in brain functions assessed by neuropsychology/physiology/image in Asia and Taiwan as well. The ultimate goals of this 3-year project are to identify which neuropsychological, functional and structural connectivity, and neurophysiological variables can be effective endophenotypes (biomarkers) for ADHD based on this follow-up unaffected sibling study design. Due to the limitation of diffusion tensor image (DTI), original analysis of diffusion spectrum image (DSI), and single-echo resting-state functional MRI (SE rsfMRI), the investigators will adopt Mean Apparent Propagator (MAP)-MRI, tract-based autonomic analysis (TBAA) and multi-echo (ME) rsfMRI in this project. With the accomplishment of the following study goals, this study will be the first longitudinal follow-up neuroimaging/physiological endophenotypes study on ADHD using advanced imaging techniques and comprehensive clinical and neurocognitive data.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
293

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Aug 2017

Typical duration 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

Study Start

First participant enrolled

August 1, 2017

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

September 17, 2018

Completed
3 days until next milestone

First Posted

Study publicly available on registry

September 20, 2018

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2020

Completed
Last Updated

September 2, 2021

Status Verified

September 1, 2021

Enrollment Period

3 years

First QC Date

September 17, 2018

Last Update Submit

September 1, 2021

Conditions

Outcome Measures

Primary Outcomes (5)

  • Neuropsychological functions: Continuous Performance Test(CPT)

    The 4 dimensions of CCPT: focused attention, hyperactivity/impulsivity, sustained attention, and vigilance.

    1 day

  • Neuropsychological functions: Cambridge Neuropsychological Test Automated Batteries(CANTAB)

    The 4 main cognitive components of CANTAB: Visual Memory, Attention, Working and Planning Memory (Executive Functions), and Decision Making.

    1 day

  • Structural neuroimaging: Diffusing spectrum imaging (DSI)

    Using a pulsed-gradient spin-echo diffusion EPI(echo planar imaging) sequence with a twice-refocused balanced echo to acquire diffusion-weighted images

    1 day

  • Functional connectivity: Single-echo (SE)

    SE will be used to evaluate functional connectivity.

    1 day

  • Multi-echo (ME) Resting-state fMRI (rsfMRI)

    rsfMRI will be used to evaluate functional connectivity.

    1 day

Study Arms (3)

ADHD Probands

Subjects with DSM-IV ADHD who received the same MRI and CANTAB+CPT assessments during 2010.8-2015.7(NCT00916851, NCT01682915) at their age of 8-17 will be reassessed at the estimated age of 15-25.

Other: Psychiatric diagnosis

Unaffected siblings of ADHD

The unaffected siblings received the MRI and CANTAB+CPT assessments during 2013.8-2015.7 (NCT01682915) will be recruited and assessed.

Other: Psychiatric diagnosis

Neurotypicals Follow-up

Subjects without any lifetime diagnosis of DSM-IV ADHD or other psychiatric disorders as the control group of the ADHDFU group around 4-8 years ago when they received the same MRI and neuropsychological assessments during 2010.8-2015.7(NCT00916851, NCT01682915) at their age of 8-17 will be reassessed at their estimated age of 15-25.

Other: Psychiatric diagnosis

Interventions

Kiddie Schedule for Affective Disorders \& Schizophrenia (K-SADS) for DSM-5

ADHD ProbandsNeurotypicals Follow-upUnaffected siblings of ADHD

Eligibility Criteria

Age15 Years - 25 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

This 3-year follow-up study will repeat the same neuropsychological (CANTAB, CPT) and MRI (T1, T2, DSI, SE- rsfMRI, counting stroop fMRI) assessments at Time 1 and additionally assess electrophysiology (MMN, Gamma ASSR), fMRI (ME rsfMRI, tasks fMRI) and Computerized Neuropsychological Battery (CNB) among 138 probands with ADHD, 61 unaffected siblings, and 135 neurotypicals who had the same neuropsychological and imaging assessments in 2010.8-2015.7(NCT00916851, NCT01682915).

You may qualify if:

  • Subjects who received the same MRI and neuropsychological assessments during 2010.8-2015.7(NCT00916851, NCT01682915).

You may not qualify if:

  • Subjects will be excluded from the study if they have (1) neurodegenerative disorder, epilepsy, involuntary movement disorder, congenital metabolic disorder, brain tumor, history of severe head trauma, or history of craniotomy; and (2) visual or hearing impairments, or motor disability which may influence MRI assessment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan Univeristy Hospital

Taipei, Taiwan

Location

MeSH Terms

Conditions

Attention Deficit Disorder with Hyperactivity

Condition Hierarchy (Ancestors)

Attention Deficit and Disruptive Behavior DisordersNeurodevelopmental DisordersMental Disorders

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 17, 2018

First Posted

September 20, 2018

Study Start

August 1, 2017

Primary Completion

July 31, 2020

Study Completion

July 31, 2020

Last Updated

September 2, 2021

Record last verified: 2021-09

Locations