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Note: This record shows only the 20 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: Netherlands Trial Register
Last refreshed on: 28 April 2013
Main ID:  NTR996
Date of registration: 13/06/2007
Primary sponsor: Utrecht Institute for Pharmaceutical Sciences, Utrecht University
Public title: Prediction of medication response in children with ADHD: EEG differences between responders and non-responders to methylphenidate.
Scientific title: Prediciton of medication response in children with ADHD: EEG differences between responders and non-responders to methylphenidate. - Prediciton of medication response in children with ADHD: EEG differences between responders and non-responders to methylphenidate
Date of first enrolment: 25/5/2007
Target sample size: 50
Recruitment status: complete
URL:  http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=996
Study type:  intervention
Study design:  Randomised: No; Masking: None; Control: Not applicable; Group: [default]; Type: Single arm  
Countries of recruitment
The Netherlands
Contacts
Name: A.E.  Wester
Address:  Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Sorbonnelaan 16 3584 CA Utrecht The Netherlands
Telephone: +31(0)302537768
Email: A.E.Wester@uu.nl
Affiliation: 
Name: A.E.  Wester
Address:  Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Sorbonnelaan 16 3584 CA Utrecht The Netherlands
Telephone: +31(0)302537768
Email: A.E.Wester@uu.nl
Affiliation: 
Key inclusion & exclusion criteria
Inclusion criteria: 1. Diagnosed with ADHD combined type (no primary diagnoses of attention deficit) according to DSM IV criteria (DSM IV, APA
1994);

2. They have (no history of) anxiety disorder, depression, tics, psychosis or autism;

3. Their age is ranged between 7 and 12;

4. IQ is above 75;

5. They are free from psychoactive
medication;

6. They are free from methylphenidate at least 48 hours before testing;

7. They have no known cardiovascular disease;

8. Normal static binocular acuity, corrected or uncorrected;

9. Written informed consent from the parents.

Exclusion criteria: 1. IQ is below 75;

2. One or more of the following comorbid disorders are diagnosed: anxiety disorder,
depression, tics, psychosis or autism;

3. Prior enrolment in the same study;

4. Participation in another clinical trial
simultaneously;

5. Familiar with epileptic disorders;

6. Long term usage of methylphenidate (> 3 months).


Age minimum:
Age maximum:
Gender:
Health Condition(s) or Problem(s) studied
ADHD, Methylphenidate response, Electroencephalography (EEG), DNA, Theta/beta ratio

Intervention(s)
Methylphenidate 10 mg.
Primary Outcome(s)
Primary outcome measure is the absolute and relative power in different frequency bands of the EEG.
Secondary Outcome(s)
Event-related potentials in response to the stop-task and CPT, EEG coherence, Scores on the Spatial Span (SSP) task and Spatial Working Memory (SWM) task from the Cambridge Neuropsychological Test Automated Battery (CANTAB), gene polymorphisms of the dopamine D4 receptor (DRD4), dopamine transporter (DAT1), and serotonin transporter (5-HTT), scores on the SNAP-IV.
Secondary ID(s)
ISRCTN32841168
P06-160C
Source(s) of Monetary Support
Utrecht Institute for Pharmaceutical Sciences, Utrecht University
Secondary Sponsor(s)
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