Treatment of Schizophrenic Patients With Ziprasidone (TRITON)

This study has been completed.
Sponsor:
Information provided by:
Pfizer
ClinicalTrials.gov Identifier:
NCT00579670
First received: December 20, 2007
Last updated: September 16, 2010
Last verified: September 2010
Results First Received: April 2, 2010  
Study Type: Observational
Study Design: Observational Model: Cohort;   Time Perspective: Prospective
Condition: Schizophrenia
Intervention: Drug: Ziprasidone

  Participant Flow
  Hide Participant Flow

Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
No text entered.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
The use and dosage of ziprasidone for this Non-interventional Post-Marketing Surveillance study was based on the approved summary of product characteristics (SmPC) document and adjusted solely according to medical and therapeutic necessity.

Reporting Groups
  Description
Ziprasidone < 80 mg Ziprasidone up to 80 milligrams (mg) per day.
Ziprasidone 80 mg to < 120 mg Ziprasidone between 80 mg and < 120 mg per day.
Ziprasidone 120 mg to < 160 mg Ziprasidone between 120 mg and < 160 mg per day.
Ziprasidone >= 160 mg Ziprasidone 160 mg or greater per day.
Ziprasidone Unknown Details are unknown.

Participant Flow:   Overall Study
    Ziprasidone < 80 mg     Ziprasidone 80 mg to < 120 mg     Ziprasidone 120 mg to < 160 mg     Ziprasidone >= 160 mg     Ziprasidone Unknown  
STARTED     15 [1]   57     88     285     5  
Population: Within SmPC (Started)     15 [2]   56     83     159     0 [3]
Population: Within SmPC (Completed)     13 [4]   55 [5]   79 [6]   147 [7]   0  
COMPLETED     13     56     84     263     5  
NOT COMPLETED     2     1     4     22     0  
Death                 1                 0                 0                 0                 0  
Adverse Event                 1                 0                 1                 2                 0  
Lack of Efficacy                 0                 0                 1                 14                 0  
Lost to Follow-up                 0                 1                 0                 4                 0  
Unknown                 0                 0                 1                 2                 0  
Withdrawal by Subject                 0                 0                 1                 0                 0  
[1] Full Analysis Set (FAS): at least 1 dose study medication and at least 1 efficacy measurement
[2] Within summary of product characteristics (SmPC): FAS subjects who received all doses "Within SmPC"
[3] "Ziprasidone Unknown" reporting group is not applicable to the Within SmPC population
[4] Not Completed (DC): Subject died N=1; Adverse Event (AE) N=1
[5] DC: Lost to follow-up (LTFU) N=1
[6] DC: AE N=1; Lack of efficacy N=1; Other unspecified N=1; Withdrawal by subject N=1
[7] DC: AE N=2; Lack of efficacy N=5; LTFU N=3; Other unspecified N=2



  Baseline Characteristics
  Hide Baseline Characteristics

Reporting Groups
  Description
Ziprasidone < 80 mg Ziprasidone up to 80 milligrams (mg) per day.
Ziprasidone 80 mg to < 120 mg Ziprasidone between 80 mg and < 120 mg per day.
Ziprasidone 120 mg to < 160 mg Ziprasidone between 120 mg and < 160 mg per day.
Ziprasidone >= 160 mg Ziprasidone 160 mg or greater per day.
Ziprasidone Unknown Details are unknown.
Total Total of all reporting groups

Baseline Measures
    Ziprasidone < 80 mg     Ziprasidone 80 mg to < 120 mg     Ziprasidone 120 mg to < 160 mg     Ziprasidone >= 160 mg     Ziprasidone Unknown     Total  
Number of Participants  
[units: participants]
  15     57     88     285     5     450  
Age, Customized  
[units: Participants]
           
< 18 years     0     0     1     0     0     1  
18 years through 44 years     3     22     42     169     2     238  
45 years through 64 years     4     19     36     96     2     157  
>= 65 years     8     16     9     20     1     54  
Gender, Customized  
[units: Participants]
           
Male     9     35     42     173     3     262  
Female     6     22     45     110     2     185  
Unspecified     0     0     1     2     0     3  
Schizophrenia Duration  
[units: Years]
Mean ( Full Range )
  33.9  
  ( 0 to 63.1 )  
  21.4  
  ( 0 to 58.5 )  
  16.9  
  ( 0 to 52.4 )  
  12.8  
  ( 0 to 50.3 )  
  15.6  
  ( 0 to 41.4 )  
  15.4  
  ( 0 to 63.1 )  



  Outcome Measures
  Show All Outcome Measures

1.  Primary:   Summary of Schizophrenia   [ Time Frame: Baseline ]

2.  Primary:   Summary of Metabolic Risk Factors   [ Time Frame: Baseline ]

3.  Primary:   Summary of Most Frequently Used Concomitant Drug Treatments   [ Time Frame: Baseline ]

4.  Secondary:   Number of Participants With Categorical Scores on Clinical Global Impression - Improvement (CGI-I)   [ Time Frame: Week 12 ]

5.  Secondary:   Number of Participants With Categorical Scores on Clinical Global Impression of Severity (CGI-S)   [ Time Frame: Baseline, Week 12 ]

6.  Secondary:   Positive and Negative Syndrome Scale (PANSS) - Positive Subscale   [ Time Frame: Baseline, Week 12 ]

7.  Secondary:   PANSS - Negative Subscale   [ Time Frame: Baseline, Week 12 ]

8.  Secondary:   PANSS - Composite Subscale   [ Time Frame: Baseline, Week 12 ]

9.  Secondary:   Number of Participants Answering the Question "How Satisfied or Dissatisfied Are You With the Ability of the Medication to Prevent or Treat Your Condition?"   [ Time Frame: Week 12 ]

10.  Secondary:   Number of Participants Answering the Question "How Satisfied or Dissatisfied Are You With the Way the Medication Relieves Your Symptoms?"   [ Time Frame: Week 12 ]

11.  Secondary:   Number of Participants Answering the Question "How Satisfied or Dissatisfied Are You With the Amount of Time it Takes the Medication to Start Working?"   [ Time Frame: Week 12 ]

12.  Secondary:   Number of Participants Answering the Question "As a Result of Taking This Medication, do You Experience Any Side Effects at All?"   [ Time Frame: Week 12 ]

13.  Secondary:   Number of Participants Answering the Question "How Bothersome Are the Side Effects of the Medication You Take to Treat Your Condition?"   [ Time Frame: Week 12 ]

14.  Secondary:   Number of Participants Answering the Question "To What Extent do the Side Effects Interfere With Your Physical Health and Ability to Function (ie, Ability to Think Clearly, Stay Awake, Etc)?"   [ Time Frame: Week 12 ]

15.  Secondary:   Number of Participants Answering the Question "To What Extent do the Side Effects Interfere With Your Mental Function (ie, Ability to Think, Stay Awake, Etc)?"   [ Time Frame: Week 12 ]

16.  Secondary:   Number of Participants Answering the Question "To What Degree Have Medication Side Effects Affected Your Overall Satisfaction With the Medication?"   [ Time Frame: Week 12 ]

17.  Secondary:   Number of Participants Answering the Question "How Easy or Difficult is it to Use the Medication in Its Current Form?"   [ Time Frame: Week 12 ]

18.  Secondary:   Number of Participants Answering the Question "How Easy or Difficult is it to Plan When You Will Use the Medication Each Time?"   [ Time Frame: Week 12 ]

19.  Secondary:   Number of Participants Answering the Question "How Convenient or Inconvenient is it to Take the Medication as Instructed?"   [ Time Frame: Week 12 ]

20.  Secondary:   Number of Participants Answering the Question "Overall, How Confident Are You That Taking This Medication is a Good Thing?"   [ Time Frame: Week 12 ]

21.  Secondary:   Number of Participants Answering the Question "How Certain Are You That the Good Things About Your Medication Outweigh the Bad Things?"   [ Time Frame: Week 12 ]

22.  Secondary:   Number of Participants Answering the Question "Taking All Things Into Account, How Satisfied or Dissatisfied Are You With This Medication?"   [ Time Frame: Week 12 ]

23.  Secondary:   Percent Change From Baseline to Final Visit in Body Weight   [ Time Frame: Baseline, Week 12 ]

24.  Other Pre-specified:   Number of Participants Continuing Treatment With Ziprasidone Following Completion of the Observation Period   [ Time Frame: Week 12 ]

25.  Post-Hoc:   Number of Participants With Categorical Scores on Clinical Global Impression - Improvement (CGI-I): Within Summary of Product Characteristics Population (SmPC)   [ Time Frame: Week 12 ]

26.  Post-Hoc:   Number of Participants With Categorical Scores on Clinical Global Impression of Severity (CGI-S): Within SmPC   [ Time Frame: Baseline, Week 12 ]

27.  Post-Hoc:   Positive and Negative Syndrome Scale (PANSS) - Positive Subscale: Within SmPC   [ Time Frame: Baseline, Week 12 ]

28.  Post-Hoc:   PANSS - Negative Subscale: Within SmPC   [ Time Frame: Baseline, Week 12 ]

29.  Post-Hoc:   PANSS - Composite Subscale: Within SmPC   [ Time Frame: Baseline, Week 12 ]

30.  Post-Hoc:   Number of Participants Answering the Question "How Satisfied or Dissatisfied Are You With the Ability of the Medication to Prevent or Treat Your Condition?": Within SmPC   [ Time Frame: Week 12 ]

31.  Post-Hoc:   Number of Participants Answering the Question "How Satisfied or Dissatisfied Are You With the Way the Medication Relieves Your Symptoms?": Within SmPC   [ Time Frame: Week 12 ]

32.  Post-Hoc:   Number of Participants Answering the Question "How Satisfied or Dissatisfied Are You With the Amount of Time it Takes the Medication to Start Working?": Within SmPC   [ Time Frame: Week 12 ]

33.  Post-Hoc:   Number of Participants Answering the Question "As a Result of Taking This Medication, do You Experience Any Side Effects at All?": Within SmPC   [ Time Frame: Week 12 ]

34.  Post-Hoc:   Number of Participants Answering the Question "How Bothersome Are the Side Effects of the Medication You Take to Treat Your Condition?": Within SmPC   [ Time Frame: Week 12 ]

35.  Post-Hoc:   Number of Participants Answering the Question "To What Extent do the Side Effects Interfere With Your Physical Health and Ability to Function (ie, Ability to Think Clearly, Stay Awake, Etc)?": Within SmPC   [ Time Frame: Week 12 ]

36.  Post-Hoc:   Number of Participants Answering the Question "To What Extent do the Side Effects Interfere With Your Mental Function (ie, Ability to Think, Stay Awake, Etc)?": Within SmPC   [ Time Frame: Week 12 ]
  Hide Outcome Measure 36

Measure Type Post-Hoc
Measure Title Number of Participants Answering the Question "To What Extent do the Side Effects Interfere With Your Mental Function (ie, Ability to Think, Stay Awake, Etc)?": Within SmPC
Measure Description No text entered.
Time Frame Week 12  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
Within SmPC; N=participants with evaluable data for specified question at observation

Reporting Groups
  Description
Ziprasidone < 80 mg Ziprasidone up to 80 mg orally (PO) per day or up to 40 mg intramuscularly (IM) per day.
Ziprasidone 80 mg to < 120 mg Ziprasidone between 80 mg and < 120 mg PO per day.
Ziprasidone 120 mg to < 160 mg Ziprasidone between 120 mg and < 160 mg PO per day.
Ziprasidone = 160 mg Ziprasidone 160 mg PO per day.

Measured Values
    Ziprasidone < 80 mg     Ziprasidone 80 mg to < 120 mg     Ziprasidone 120 mg to < 160 mg     Ziprasidone = 160 mg  
Number of Participants Analyzed  
[units: participants]
  3     11     13     41  
Number of Participants Answering the Question "To What Extent do the Side Effects Interfere With Your Mental Function (ie, Ability to Think, Stay Awake, Etc)?": Within SmPC  
[units: Participants]
       
A great deal     3     11     13     41  
Quite a bit     0     0     0     0  
Somewhat     0     0     0     0  
Minimally     0     0     0     0  
Not at all     0     0     0     0  

No statistical analysis provided for Number of Participants Answering the Question "To What Extent do the Side Effects Interfere With Your Mental Function (ie, Ability to Think, Stay Awake, Etc)?": Within SmPC



37.  Post-Hoc:   Number of Participants Answering the Question "To What Degree Have Medication Side Effects Affected Your Overall Satisfaction With the Medication?": Within SmPC   [ Time Frame: Week 12 ]

38.  Post-Hoc:   Number of Participants Answering the Question "How Easy or Difficult is it to Use the Medication in Its Current Form?": Within SmPC   [ Time Frame: Week 12 ]

39.  Post-Hoc:   Number of Participants Answering the Question "How Easy or Difficult is it to Plan When You Will Use the Medication Each Time?": Within SmPC   [ Time Frame: Week 12 ]

40.  Post-Hoc:   Number of Participants Answering the Question "How Convenient or Inconvenient is it to Take the Medication as Instructed?": Within SmPC   [ Time Frame: Week 12 ]

41.  Post-Hoc:   Number of Participants Answering the Question "Overall, How Confident Are You That Taking This Medication is a Good Thing?": Within SmPC   [ Time Frame: Week 12 ]

42.  Post-Hoc:   Number of Participants Answering the Question "How Certain Are You That the Good Things About Your Medication Outweigh the Bad Things?": Within SmPC   [ Time Frame: Week 12 ]

43.  Post-Hoc:   Number of Participants Answering the Question "Taking All Things Into Account, How Satisfied or Dissatisfied Are You With This Medication?": Within SmPC   [ Time Frame: Week 12 ]

44.  Post-Hoc:   Percent Change From Baseline to Final Visit in Body Weight: Within SmPC   [ Time Frame: Baseline, Week 12 ]

45.  Post-Hoc:   Number of Participants Continuing Treatment With Ziprasidone Following Completion of the Observation Period: Within SmPC   [ Time Frame: Week 12 ]


  Serious Adverse Events


  Other Adverse Events


  More Information
  Hide More Information

Certain Agreements:  
Principal Investigators are NOT employed by the organization sponsoring the study.
There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
The agreement is:
unchecked The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is less than or equal to 60 days. The sponsor cannot require changes to the communication and cannot extend the embargo.
unchecked The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is more than 60 days but less than or equal to 180 days. The sponsor cannot require changes to the communication and cannot extend the embargo.


Limitations and Caveats
Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
Additional descriptive tables were identified as required after review of the originally planned study tables; many subjects included in the tables had received ziprasidone doses above those specified in the summary of product characteristics (SmPC).  


Results Point of Contact:  
Name/Title: Pfizer ClinicalTrials.gov Call Center
Organization: Pfizer, Inc.
phone: 1-800-718-1021
e-mail: ClinicalTrials.gov_Inquiries@pfizer.com


No publications provided


Responsible Party: Director, Clinical Trial Disclosure Group, Pfizer Inc
ClinicalTrials.gov Identifier: NCT00579670     History of Changes
Other Study ID Numbers: A1281156
Study First Received: December 20, 2007
Results First Received: April 2, 2010
Last Updated: September 16, 2010
Health Authority: Greece: National Organization of Medicines