This study will determine the advantages and disadvantages of adding one of two different types of drugs to stimulant treatment for reducing aggressive behavior in children with attention deficit with hyperactivity disorder (ADHD).
Attention deficit with hyperactivity disorder (ADHD) is a common childhood mental disorder that affects 3% to 5% of all American children. Symptoms of ADHD commonly include inability to focus or exercise normal inhibition, and in some cases, aggressive behavior. Approximately 33% to 50% of children with ADHD develop oppositional defiant disorder (ODD), and about 20% to 40% develop a conduct disorder (CD). These disorders are characterized by defiant, belligerent, and otherwise aggressive behavior. Treatment for ADHD generally includes use of stimulant medications that decrease impulsivity and increase attentiveness, such as methylphenidate (Ritalin) or dextroamphetamine (Dexedrine), but these do not always affect aggression. To treat aggression in ADHD, many physicians prescribe additional medications, including the mood stabilizing medication valproate and the antipsychotic medication risperidone. There is no clinical evidence proving that using multiple types of medications is safe and effective. This study will treat children with ADHD and aggression with a combination of stimulants and antipsychotic or mood stabilizing medications to determine whether the aggressive behaviors and ADHD symptoms are reduced without harmful side effects. This study has two phases. During the first phase, which will last 3 to 6 weeks, participants will be treated with normal ADHD stimulant medications. During the second phase, those whose aggressive behavior is not effectively suppressed by stimulant medication alone will then be randomly assigned to also receive valproate, risperidone, or placebo for 8 weeks. After 8 weeks, children whose aggression persists will be switched from either valproate to risperidone or risperidone to valproate for another 8 weeks. Those on placebo will not switch medications. All participants will attend weekly monitoring visits for 11 to 16 weeks over the course of the study. At these visits, aggression levels and medication side effects will be assessed. Families will also meet with the researchers to discuss the child's progress and will attend behavioral counseling with a therapist.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
270
Standard therapeutic doses of valproate, set according to valproic acid blood level, for 8 weeks
Standard therapeutic doses of risperidone for 8 weeks
An inactive substance at identical dosing to active treatments for 8 weeks
North Shore - LIJ Health System, Zucker Hillside Hospital
Glen Oaks, New York, United States
RECRUITINGStony Brook University Medical Center
Stony Brook, New York, United States
RECRUITINGUniversity of Texas Health Science Center at San Antonio
San Antonio, Texas, United States
RECRUITINGAggressive behavior
Time frame: Measured weekly for 11 to 16 weeks
ADHD symptoms
Time frame: Measured weekly for 11 to 16 weeks
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Stimulant medication standard in the care of ADHD, such as methylphenidate or dextroamphetamine
Weekly behavioral counseling with a therapist