A Study Comparing the Efficacy and Tolerability of Ziprasidone vs. Clozapine for the Treatment of Schizophrenia in Patients Who Continue to Have Symptoms on or Cannot Tolerate Other Antipsychotic Drugs

NCT00649844

Last updated date
Study Location
Pfizer Investigational Site
Citta' Di Castello, Perugia, 06012, Italy
Contact
1-800-718-1021

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Eligibility Criteria
condition
The disease, disorder, syndrome, illness, or injury that is being studied.
Schizophrenia
Sex
Females and Males
Age
Pediatric Trials: 0-17 Years
Adult Trials: 18+ Years
18 + years
Inclusion Criteria
The factors, or reasons, that allow a person to participate in a clinical study.
Show details

- CGI - S ≥4

- PANSS ≥ 80

- Inpatients or outpatients

Exclusion Criteria
The factors, or reasons, that prevent a person from participating in a clinical study.
Show details


- Patients with a history of myeloproliferative diseases, history of granulocytopenia,
agranulocytosis due to a drug


- Diagnosis of substance dependence within previous 3 months using DSM-IV criteria


- History of seizure


- Organic mental disease, including mental retardation or epilepsy

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Advanced Information
Descriptive Information
Brief Title  ICMJE A Study Comparing the Efficacy and Tolerability of Ziprasidone vs. Clozapine for the Treatment of Schizophrenia in Patients Who Continue to Have Symptoms on or Cannot Tolerate Other Antipsychotic Drugs
Official Title  ICMJE Double Blind, Double-Dummy Multicenter, Parallel Group Comparison Of The Efficacy And The Tolerability Of Ziprasidone Vs. Clozapine In Schizophrenic Patients Who Are Refractory And/Or Intolerant To Antipsychotic Therapy
Brief Summary The purpose of this study is to compare the efficacy and safety of ziprasidone and clozapine in schizophrenic patients who are resistant and/or intolerant to antipsychotic treatment
Detailed Description Not Provided
Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 3
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Condition  ICMJE Schizophrenia
Intervention  ICMJE
  • Drug: Clozapine
    Clozapine 25 or 100 mg tablets. Patients were initially titrated over the first 10 days to 300 mg/day and remained at this dose for 1 week. Thereafter, the dose could be varied between 250 and 600 mg/day based on response and tolerability for a total treatment duration of 18 weeks
  • Drug: Ziprasidone
    Ziprasidone 40, 60, or 80 mg capsules. Patients were initially titrated over the first 3 days to 80 mg/day, which could subsequently be increased to between 80 and 160 mg/day based on response and tolerability for a total treatment duration of 18 weeks
    Other Name: Geodon, Zeldox
Study Arms  ICMJE
  • Active Comparator: A
    Intervention: Drug: Clozapine
  • Experimental: B
    Intervention: Drug: Ziprasidone
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Actual Enrollment  ICMJE
 (submitted: March 31, 2008)
147
Original Actual Enrollment  ICMJE Same as current
Actual Study Completion Date  ICMJE September 2004
Primary Completion Date Not Provided
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • CGI - S ?4
  • PANSS ? 80
  • Inpatients or outpatients

Exclusion Criteria:

  • Patients with a history of myeloproliferative diseases, history of granulocytopenia, agranulocytosis due to a drug
  • Diagnosis of substance dependence within previous 3 months using DSM-IV criteria
  • History of seizure
  • Organic mental disease, including mental retardation or epilepsy
Sex/Gender  ICMJE
Sexes Eligible for Study:All
Ages  ICMJE 18 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Italy
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT00649844
Other Study ID Numbers  ICMJE A1281039
Has Data Monitoring Committee Yes
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Director, Clinical Trial Disclosure Group, Pfizer, Inc.
Study Sponsor  ICMJE Pfizer
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Study Director:Pfizer CT.gov Call CenterPfizer
PRS Account Pfizer
Verification Date September 2009

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP