Effectiveness of Ziprasidone for Patients With Schizophrenia
Schizophrenia, Schizoaffective Disorder
About this trial
This is an interventional treatment trial for Schizophrenia focused on measuring Schizophrenia, Schizoaffective Disorder, Ziprasidone, Switch, Metabolic syndrome
Eligibility Criteria
Inclusion Criteria:
- Male and female aged 18-55 years treated with risperidone, olanzapine, amisulpride, quetiapine and typical antipsychotics.
- Both in- and outpatients who met Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) criteria for schizophrenia or schizoaffective disorder.
- Their primary psychiatric clinician determined that they would benefit from a change in their medications, either because of suboptimal efficacy or because of side effects.
Exclusion Criteria:
- Those who are treated with medications that prolong the QTc interval.
- Those who have any other axis I DSM-IV diagnoses.
- Those who have a history of substance abuse or dependence within 1 month.
- Those who have clinically significant abnormal laboratory values or any other abnormal baseline laboratory findings considered by psychiatrists to be indicative of conditions that might affect the study results.
- Those who have a past history of hypersensitivity or intolerance to ziprasidone.
- Those who have history of clozapine use within 1 month.
- Those who participated in clinical trials within 1 month before entering the study entry.
- Those who have used depot antipsychotics within one cycle before entering the study.
- Those who are pregnant or are breast feeding.
- Those who have a immediate risk of harming self or others or history of suicide attempts in the year before the screening precluded inclusion in the study.
- The patients unable/unlikely to comprehend/follow the protocol.
Sites / Locations
- Korea University Medical Center Ansan Hospital
- Soonchunhyang University Bucheon Hospital
- Inha University Hospital
- Catholic University Our Lady of Mercy Hospital
- Korea University Medical Center Guro Hospital
- Kangnam Sacred Heart Hospital
Arms of the Study
Arm 1
Experimental
Ziprasidone
During the 12-week study period, patients were prescribed ziprasidone at 20 to 160 mg/day flexibly based on their effectiveness and tolerability. Fifty to one hundred percent of the past antipsychotic dose was maintained in the first week; during next 3 weeks, flexible dosing of 0-100% was used; then, ziprasidone was discontinued. This study included four visits: baseline, week 4, week 8, and week 12. Concomitant benzodiazepines (oral formula or injection) were allowed up to a dose of 4 mg of lorazepam-equivalents per day for anxiety and agitation.