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Electrophysiological Effects of Guanfacine Extended Release in Attention Deficit Hyperactivity Disorder (ADHD)

2014-07-24 14:09:59 | BioPortfolio

Summary

All subjects with the study will be children (age 6-12) with Attention Deficit Hyperactivity Disorder (ADHD). After baseline assessment confirms the presence of ADHD, children will have an Event related potential (ERP) (a type of electroencephalogram [EEG]) study. After the baseline EEG, children will be randomized to either placebo or GXR for a 4-week, parallel groups trial. During this trial, dosing will be flexibly adjusted according to patient response or presence of side effects. The dosage will range from 1-4 mg. At the end of the four week trial, a follow up ERP study will be obtained. Our hypotheses are: A) GXR will be superior to placebo at reducing symptoms of ADHD as measured by standardized clinical diagnostic tools by week 3 of treatment. B) Compared to placebo and pretreatment measures, GXR at week 4 of treatment will increase the amplitude of the right frontal N200 and frontal-central P300, and such changes will correlate with clinical response.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Conditions

Attention Deficit Disorder With Hyperactivity

Intervention

Guanfacine Extended Release, Placebo

Location

Dept. Of Psychiatry, University of Texas Health Science Center at San Antonio
San Antonio
Texas
United States
78229-3900

Status

Not yet recruiting

Source

The University of Texas Health Science Center at San Antonio

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-24T14:09:59-0400

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Medical and Biotech [MESH] Definitions

A propylamine derivative and selective ADRENERGIC UPTAKE INHIBITOR that is used in the treatment of ATTENTION DEFICIT HYPERACTIVITY DISORDER.

A methylphenidate derivative, DOPAMINE UPTAKE INHIBITOR and CENTRAL NERVOUS SYSTEM STIMULANT that is used in the treatment of ATTENTION DEFICIT HYPERACTIVITY DISORDER.

A dextroamphetamine drug precursor that also functions as a CENTRAL NERVOUS SYSTEM STIMULANT and DOPAMINE UPTAKE INHIBITOR and is used in the treatment of ATTENTION DEFICIT HYPERACTIVITY DISORDER.

A behavior disorder originating in childhood in which the essential features are signs of developmentally inappropriate inattention, impulsivity, and hyperactivity. Although most individuals have symptoms of both inattention and hyperactivity-impulsivity, one or the other pattern may be predominant. The disorder is more frequent in males than females. Onset is in childhood. Symptoms often attenuate during late adolescence although a minority experience the full complement of symptoms into mid-adulthood. (From DSM-IV)

Includes two similar disorders: oppositional defiant disorder and CONDUCT DISORDERS. Symptoms occurring in children with these disorders include: defiance of authority figures, angry outbursts, and other antisocial behaviors.

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