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Kahn Study; Investigation Of The Efficacy Of Ziprasidone Versus Olanzapine In The Management Of Recent-Onset Psychosis; A Flexible-Dose, Parallel Group, Double-Blind Study

Last updated on November 13, 2019

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Study Location
Pfizer Investigational Site
Antwerpen, , B-2060 Belgium
Contact
1-800-718-1021
Eligibility criteria
Condition
The disease, disorder, syndrome, illness, or injury that is being studied.
Schizophrenia, Psychotic Disorders
Sex
Females and Males
Age
Pediatric Trials: 0-17 Years
Adult Trials: 18+ Years
18-40 years
Inclusion criteria
The factors, or reasons, that allow a person to participate in a clinical study.
Show details

- Duration of illness CGI severity score > 4 (moderately ill)

- maximum exposure to antipsychotic treatment of =

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

- Concurrent treatment with antipsychotic agents =

- for depot agents a period of two weeks or one cycle, whichever is the longer, must
occur between last administration and randomization

- Treatment with antidepressants or mood stabilizers =

- for MAOIs and moclobemide this period must =

- for fluoxetine =

NCT00145444
Pfizer
Completed
Kahn Study; Investigation Of The Efficacy Of Ziprasidone Versus Olanzapine In The Management Of Recent-Onset Psychosis; A Flexible-Dose, Parallel Group, Double-Blind Study

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Descriptive Information
Brief Title  ICMJE Kahn Study; Investigation Of The Efficacy Of Ziprasidone Versus Olanzapine In The Management Of Recent-Onset Psychosis; A Flexible-Dose, Parallel Group, Double-Blind Study
Official Title  ICMJE A Multicenter, Double-Blind, Randomized Trial Of Ziprasidone (80 - 160 Mg) Versus Olanzapine (10 - 20 Mg) In Patients With Recent-Onset Schizophrenia, Schizoaffective And Schizophreniform Disorder.
Brief SummaryThis study intends to compare novel antipsychotics ziprasidone and olanzapine, to confirm the findings of an open study -where stable patients receiving olanzapine switched to ziprasidone- which showed maintenance of clinical effect with improvements in all domains of cognitive function at 6 weeks (Daniel, 1999). Direct comparison of the two agents in a well-controlled double-blind fashion will allow an evaluation of the effect on cognitive function in the short and long-term management of patients with recent-onset schizophrenia, schizoaffective and schizophreniform disorder.
Detailed DescriptionNot Provided
Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 3
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Condition  ICMJE
  • Schizophrenia
  • Psychotic Disorders
Intervention  ICMJE
  • Drug: olanzapine
  • Drug: ziprasidone
Study Arms  ICMJE Not Provided
Publications *Grootens KP, van Veelen NM, Peuskens J, Sabbe BG, Thys E, Buitelaar JK, Verkes RJ, Kahn RS. Ziprasidone vs olanzapine in recent-onset schizophrenia and schizoaffective disorder: results of an 8-week double-blind randomized controlled trial. Schizophr Bull. 2011 Mar;37(2):352-61. doi: 10.1093/schbul/sbp037. Epub 2009 Jun 19.


*   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
Enrollment  ICMJE
 (submitted: September 1, 2005)
100
Original Enrollment  ICMJE Same as current
Study Completion Date  ICMJE November 2005
Primary Completion DateNot Provided
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Duration of illness < 5 years (according to DSM-IV and onset first psychotic episode); CGI severity score > 4 (moderately ill)
  • maximum exposure to antipsychotic treatment of =< 16 weeks.

Exclusion Criteria:

  • Concurrent treatment with antipsychotic agents =< 12 hours prior to randomization
  • for depot agents a period of two weeks or one cycle, whichever is the longer, must occur between last administration and randomization
  • Treatment with antidepressants or mood stabilizers =< 7 days of randomization
  • for MAOIs and moclobemide this period must =< 2 weeks
  • for fluoxetine =< 5 weeks
Sex/Gender  ICMJE
Sexes Eligible for Study:All
Ages  ICMJE 18 Years to 40 Years   (Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Belgium,   Netherlands
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT00145444
Other Study ID Numbers  ICMJE A1281006
Has Data Monitoring CommitteeNot Provided
U.S. FDA-regulated ProductNot Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible PartyNot Provided
Study Sponsor  ICMJE Pfizer
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Study Director:Pfizer CT.gov Call CenterPfizer
PRS AccountPfizer
Verification DateDecember 2006

ICMJE     Data element required by the

International Committee of Medical Journal Editors
and the
World Health Organization ICTRP

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