Double-blind, placebo-controlled study of the cognitive effects of Methylphenidate in children with Attention Deficit Hyperactivity Disorder (ADHD):
DEC-NET Serial number GB275
Published online07/07/2004 11.51.00
Last updated02/08/2005 12.33.24
Other protocol ID numberN0544122074
This trial has been approved by an ethics committee
Current trial statusOpen (actively recruiting new participants)
Major Disease
(ICD9 class)
ATTENTION DEFICIT DISORDER OF CHILDHOOD
Experimental drug
Methylphenidate
GenderMale
Age (range)7-13 years

Eligibility criteria
Inclusion criteria
Diagnosed with Attention deficit disorder.
Exclusion criteria
Previously had Methylphenidate

Trial design/methodology
Phase3
Kind of studyEfficacy
Safety
DesignControlled
Randomised
Blinded
Double blind
Purpose of study
To investigate effects of Methylphenidate on decision-making, response inhibition and delay processing in seven to thirteen year old boys diagnosed with ADHD. Furthermore, the project will examine relationships between the identified cognitive abnormalities and clinical/ behavioural symptoms.
Primary outcomes
Effects of Methylphenidate on decision-making, response inhibition and delay processing.
Secondary outcomes
To clarify the nature of, and the relationships between, neurochemical, cognitive and behavioural phenotypes of this disorder.
Summary of study design, objectives, and ongoing research findings
Double-blind, placebo-controlled study to investigate the effects of Methylphenidate on decision-making, response inhibition and delay processing in seven to thirteen year old boys with ADHD. The project also aims to clarify the nature of, and the relationships between, neurochemical, cognitive and behavioural phenotypes of this disorder.
Principal investigator
NameProfessor Barbara J Sahakian
InstitutionAddenbrooke's NHS Trust
Postal addressBox 189, Dept. of Psychiatry, Addenbrooke's NHS Trust, Cambridge, CB2 2QQ
CityCambridge
CountryUNITED KINGDOM
Phone01223 331209
Fax01223-336968
E-mailjenny.hall@addenbrookes.nhs.uk


Sponsor name
Wellcome Trust (Charity)

ISRCTN  EudraCT