A Multicenter, Randomized, Double-Blind, Flexible-Dose, 6-Week Trial of the Efficacy and Safety of Asenapine Compared With Placebo Using Olanzapine Positive Control in Subjects With an Acute Exacerbation of Schizophrenia
Overview
- Phase
- Phase 3
- Intervention
- asenapine
- Conditions
- Schizophrenia
- Sponsor
- Organon and Co
- Enrollment
- 277
- Primary Endpoint
- Change in total Positive and Negative Syndrome Scale (PANSS) score at endpoint (6-week double-blind or last assessment after baseline) from baseline
- Status
- Completed
- Last Updated
- last year
Overview
Brief Summary
Schizophrenia is a brain disease. The primary features of schizophrenia are characterized by Positive symptoms (symptoms that should not be there, inability to think clearly, to distinguish reality from fantasy i.e., hearing voices) and Negative symptoms (a reduction or absence of normal behaviors or emotions, i.e., unable to manage emotions, make decisions and relate to others). Other symptoms include reduced ability to recall and learn new information, difficulty with problem solving, or maintaining productive employment. The symptoms of schizophrenia may be due to an imbalance in chemicals in the brain, primarily dopamine and serotonin, which enables brain cells to communicate with each other.
Asenapine is an investigational drug that may help to correct the imbalance in dopamine and serotonin. This is a 6 week study to test the efficacy and safety of asenapine and a comparator agent (olanzapine) in the treatment of patients with schizophrenia. Patients that complete this trial will have the option of continuing in an additional one year extension trial.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Currently suffering from an acute exacerbation of schizophrenia.
Exclusion Criteria
- •Have an uncontrolled, unstable medical condition. Have any other psychiatric disorder other than schizophrenia as a primary diagnosis.
Arms & Interventions
1
asenapine 5-10mg BID
Intervention: asenapine
2
Placebo
Intervention: Placebo
3
olanzapine 10-20 mg QD
Intervention: Olanzapine
Outcomes
Primary Outcomes
Change in total Positive and Negative Syndrome Scale (PANSS) score at endpoint (6-week double-blind or last assessment after baseline) from baseline
Time Frame: Screen, baseline, days 4, 7, 14, 21, 28, 35, 42
A 30-item, clinician rated instrument for assessing the symptoms of schizophrenia. Ratings for each item could range from 1 (absent) to 7 (extreme).
Secondary Outcomes
- Anxiety(Baseline, day 42)
- Readiness to discharge, at scheduled assessments and endpoint from baseline(Baseline up to day 14)
- Changes in PANSS subscale and Marder factor score Clinical Global Impression-Severity of Illness (CGI-S) scores(Screen, baseline, Days 4,7,14,21,28,35,42)
- Quality of life and patient functionality(Baseline, day 42)
- Vital signs(Baseline, Days ,14,21,28,42)
- Weight(Baseline, Days 14,,28,,42)
- Serious adverse events (SAEs) up to 30 days after endpoint(Screen, baseline, Days 4,7,14,21,28,35,42 and recorded continuously for AEs up to 30 days after endpoint)
- Clinical Global Impression Improvement (CGI-I) scores(Days 4,7,14,21,28,35,42)
- Adverse events (including serious adverse events)(Screen, baseline, Days 4,7,14,21,28,35,42 and recorded continuously for AEs up to 7 days after endpoint)
- Laboratory parameters(Baseline, Days 14,,28,,42)
- Electrocardiograms (ECGs)(Baseline, Days ,14, 28, 42)
- Suicidal thinking(Baseline, day 42)
- Extrapyramidal symptoms(Baseline, Days 4,7,14,21,28,35,42)
- Neurocognition and cognitive functioning(Baseline , day 42)