Clozapine vs. Placebo in Treatment-Refractory Bipolar Disorder in Children and Adolescents
|First Received Date ICMJE||May 10, 2002|
|Last Updated Date||March 3, 2008|
|Start Date ICMJE||May 2002|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures ICMJE||Not Provided|
|Original Primary Outcome Measures ICMJE||Not Provided|
|Change History||Complete list of historical versions of study NCT00036582 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures ICMJE||Not Provided|
|Original Secondary Outcome Measures ICMJE||Not Provided|
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||Clozapine vs. Placebo in Treatment-Refractory Bipolar Disorder in Children and Adolescents|
|Official Title ICMJE||Clozapine vs Placebo In Treatment-Refractory Bipolar Disorder In Children And Adolescents|
The purpose of this study is to determine the safety and effectiveness of clozapine in children and adolescents with treatment resistant bipolar disorder. This study will also explore how the brain functions in early-onset bipolar disorder.
Bipolar disorder (BPD) in children and adolescents is a serious illness that carries a high risk for chronicity, impairing comorbidities, and completed suicide. Treatment options are often limited by inefficacy or intolerable side effects. Open trials in adult bipolar subjects and several case series in children and adolescents provide preliminary evidence that clozapine, an atypical antipsychotic, may be effective in treatment-resistant bipolar disorder. The first specific aim of this study is to test the efficacy and safety of clozapine compared to placebo in a double-blind study of children and adolescents with treatment refractory BPD. Other specific aims involve exploring the pathophysiology of early-onset BPD by 1) testing the hypotheses that, compared to controls, children with BPD have increased psychophysiological reactivity to emotional stimuli and decreased prepulse inhibition; 2) obtaining samples of genetic material from affected probands and their parents for later analysis; and 3) identifying anatomic changes in the brains of children with BPD using structural MRI.
|Study Type ICMJE||Interventional|
|Study Phase||Phase 3|
|Study Design ICMJE||Endpoint Classification: Efficacy Study
Primary Purpose: Treatment
|Condition ICMJE||Bipolar Disorder|
|Intervention ICMJE||Drug: Clozapine|
|Study Arm (s)||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Completed|
|Completion Date||February 2004|
|Primary Completion Date||Not Provided|
|Eligibility Criteria ICMJE||
INCLUSION CRITERIA (All 5 must be met): Children with BPD
Currently meets criteria for bipolar disorder, manic or mixed, as determined by the K-SADS diagnostic interview.
Treatment-resistant, defined as a history of unsuccessful trials of lithium (documented level of greater than 0.8 mEq/L), valproic acid (documented level of greater than 50 ug/ml), carbamazepine (documented level greater than or equal to 6 ug/ml), a neuroleptic as well as a combination of two of these agents. Each trial must have been at least 6 weeks long. A trial will be considered unsuccessful if the medication was discontinued because of intolerable side-effects.
The child should be in treatment with a community psychiatrist to whom they will return upon completion of the study.
Current CGAS score less than 50
EXCLUSION CRITERIA: Children with BPD
Full scale IQ less than 80
Meets criteria for substance use disorder in the three months prior to randomization
Currently pregnant, lactating, or sexually active without using a barrier method of contraception
Previous treatment with clozapine
History of seizures
History of leukopenia or agranulocytosis
Presence of an unstable medical illness
INCLUSION CRITERIA: CONTROLS
Control subjects will be age- and sex- matched to the BPD subjects. They will have normal physical and neurological examinations, and an identified primary care physician. Both control subjects and their first-degree relatives must be free of current or past psychopathology.
EXCLUSION CRITERIA: CONTROLS
I.Q less than 80; ongoing medical illness; neurologic disorder (including seizures); pregnancy; meeting past or present criteria for any diagnosis on the K-SADS-PL; meeting criterion A of post-traumatic stress disorder (exposure to a traumatic event).
|Accepts Healthy Volunteers||No|
|Contacts ICMJE||Contact information is only displayed when the study is recruiting subjects|
|Location Countries ICMJE||United States|
|NCT Number ICMJE||NCT00036582|
|Other Study ID Numbers ICMJE||020198, 02-M-0198|
|Has Data Monitoring Committee||Not Provided|
|Responsible Party||Not Provided|
|Study Sponsor ICMJE||National Institute of Mental Health (NIMH)|
|Collaborators ICMJE||Not Provided|
|Investigators ICMJE||Not Provided|
|Information Provided By||National Institutes of Health Clinical Center (CC)|
|Verification Date||February 2004|
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