The purpose of this study is to evaluate whether ITI-007 is effective in reducing symptoms associated with schizophrenia in patients who are having an acute worsening of their psychosis. Patients will be randomly assigned to receive one of two doses of ITI-007, placebo, or a positive control. The primary goal will be to assess the effects of ITI-007 on psychosis. The safety of ITI-007 will also be assessed.
The study will be conducted as a randomized, double-blind, placebo-controlled, multi-center study in patients diagnosed with schizophrenia and an acute exacerbation of psychosis. The efficacy and safety of two dose levels of ITI-007 administered daily for 28 days will be evaluated as compared to placebo; risperidone has been included as a positive control. Upon completion of the inpatient 28-day Study Treatment Period, patients will be started on standard antipsychotic medication and will be stabilized over a 5-day period before discharge from the study clinic. Patients will be seen for a final outpatient safety evaluation at the End-of-Study visit approximately 2 weeks after discharge.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
335
Capsules containing ITI-007 for 28 days
Capsules containing inactive placebo for 28 days
Capsules containing risperidone for 28 days
Clinical Site
Little Rock, Arkansas, United States
Clinical Site
Garden Grove, California, United States
Clinical Site
Atlanta, Georgia, United States
Clinical Site
Rockville, Maryland, United States
Change From Baseline to Day 28 in Positive and Negative Syndrome Scale (PANSS) Total Score
The PANSS is a 30-item scale used to measure symptoms of schizophrenia. The scale has 7 positive symptom items, 7 negative symptom items, and 16 general psychopathology symptom items. Each item is scored on a 7-point scale by the clinical rater based on a clinical interview with the patient, with a score of 1 indicating the absence of symptoms and a score of 7 indicating extremely severe symptoms. Thus, the PANSS Total score minimum is 30 and the maximum is 210, with higher numbers indicating more severe symptoms.
Time frame: Change from baseline to Day 28
Change From Baseline to Day 8 in Positive and Negative Syndrome Scale (PANSS) Total Score
The PANSS is a 30-item scale used to measure symptoms of schizophrenia. The scale has 7 positive symptom items, 7 negative symptom items, and 16 general psychopathology symptom items. Each item is scored on a 7-point scale by the clinical rater based on a clinical interview with the patient, with a score of 1 indicating the absence of symptoms and a score of 7 indicating extremely severe symptoms. Thus, the PANSS Total score minimum is 30 and the maximum is 210, with higher numbers indicating more severe symptoms.
Time frame: Change from Baseline to Day 8
Change From Baseline to Day 15 in Positive and Negative Syndrome Scale (PANSS) Total Score
The PANSS is a 30-item scale used to measure symptoms of schizophrenia. The scale has 7 positive symptom items, 7 negative symptom items, and 16 general psychopathology symptom items. Each item is scored on a 7-point scale by the clinical rater based on a clinical interview with the patient, with a score of 1 indicating the absence of symptoms and a score of 7 indicating extremely severe symptoms. Thus, the PANSS Total score minimum is 30 and the maximum is 210, with higher numbers indicating more severe symptoms.
Time frame: Change from Baseline to Day 15
Change From Baseline to Day 22 in Positive and Negative Syndrome Scale (PANSS) Total Score
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Clinical Site
St Louis, Missouri, United States
Clinical Site
Willingboro, New Jersey, United States
Clinical Site
Philadelphia, Pennsylvania, United States
Clinical Site
Austin, Texas, United States
The PANSS is a 30-item scale used to measure symptoms of schizophrenia. The scale has 7 positive symptom items, 7 negative symptom items, and 16 general psychopathology symptom items. Each item is scored on a 7-point scale by the clinical rater based on a clinical interview with the patient, with a score of 1 indicating the absence of symptoms and a score of 7 indicating extremely severe symptoms. Thus, the PANSS Total score minimum is 30 and the maximum is 210, with higher numbers indicating more severe symptoms.
Time frame: Change from Baseline to Day 22