Clinical Trial Results:
Four Week, Double-Blind, Placebo Controlled Phase III Trial Evaluating The Efficacy, Safety And Pharmacokinetics Of Flexible Doses Of Oral Ziprasidone In Children And Adolescents With Bipolar I Disorder (Manic Or Mixed)
Due to a system error, the data reported in version v1 is not correct and has been removed from public view.
Summary
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EudraCT number |
2015-000606-20 |
Trial protocol |
Outside EU/EEA |
Global end of trial date |
26 Jul 2007
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Results information
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Results version number |
v2(current) |
This version publication date |
25 Mar 2016
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First version publication date |
19 Jun 2015
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Other versions |
v1 (removed from public view) |
Version creation reason |
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Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
A1281132
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT00257166 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Pfizer Inc.
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Sponsor organisation address |
235 E 42nd Street, New York, United States, NY 10017
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Public contact |
Pfizer ClinicalTrials.gov Call Center, Pfizer, Inc., 001 800-718-1021, ClinicalTrials.gov_Inquiries@pfizer.com
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Scientific contact |
Pfizer ClinicalTrials.gov Call Center, Pfizer, Inc., 001 800-718-1021, ClinicalTrials.gov_Inquiries@pfizer.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
Yes
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
23 Jun 2008
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Is this the analysis of the primary completion data? |
No
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Global end of trial reached? |
Yes
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Global end of trial date |
26 Jul 2007
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
•To establish efficacy of oral ziprasidone (60-80 milligram [mg] twice a day [BID]) compared with placebo in the treatment of children and adolescents with Bipolar I Disorder - Single Manic Episode, Bipolar I Disorder – Most Recent Episode Manic; or Bipolar I Disorder – Most Recent Episode Mixed; as measured by the change from baseline to Week 4 in Young Mania Rating Scale (YMRS) total score.
•To evaluate the safety and tolerability of oral ziprasidone (60-80 mg BID) over 4 weeks in the treatment of children and adolescents with Bipolar I Disorder (manic or mixed).
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Protection of trial subjects |
The study was in compliance with the ethical principles derived from the Declaration of Helsinki and in compliance with all International Conference on Harmonization (ICH) Good Clinical Practice (GCP) Guidelines. All the local regulatory requirements pertinent to safety of trial subjects were followed.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
13 Jan 2006
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
No
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
United States: 237
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Worldwide total number of subjects |
237
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EEA total number of subjects |
0
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
50
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Adolescents (12-17 years) |
186
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Adults (18-64 years) |
1
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From 65 to 84 years |
0
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85 years and over |
0
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Recruitment
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Recruitment details |
- | |||||||||||||||||||||||||||
Pre-assignment
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Screening details |
The study was conducted at 36 sites in the United States. Study started on 13 January 2006 and completed on 26 July 2007. Total 238 subjects were randomized to treatment, of which 237 received treatment. One subject was randomized, but not treated. Study disposition is provided for the treated subjects. | |||||||||||||||||||||||||||
Period 1
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Period 1 title |
Overall Study (overall period)
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Is this the baseline period? |
Yes | |||||||||||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Double blind | |||||||||||||||||||||||||||
Roles blinded |
Subject, Investigator | |||||||||||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Ziprasidone | |||||||||||||||||||||||||||
Arm description |
Ziprasidone capsule administered orally in 2 divided doses with a starting dose of ziprasidone 20 milligram per day (mg/day) as an evening dose on Day 1. This was followed by dose escalation as per investigator’s discretion. | |||||||||||||||||||||||||||
Arm type |
Experimental | |||||||||||||||||||||||||||
Investigational medicinal product name |
Ziprasidone
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Capsule
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Routes of administration |
Oral use
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Dosage and administration details |
Ziprasidone capsule administered in 2 divided doses daily in the morning and evening with a starting dose of 20 mg/day as an evening dose on Day 1. This was followed by dose escalation of 20 mg/day every other day up to a target dose of 120 to 160 mg/day for subjects with greater than or equal to (>=) 45 kilogram (kg) weight and 60 to 80 mg/day for subjects with less than (<) 45 kg weight over 2 weeks, as per investigator’s discretion. Flexible dosing of ziprasidone capsule 80 to 160 mg/day for subjects with >=45 kg weight and ziprasidone capsule 40 to 80 mg/day for subjects with <45 kg weight orally in 2 divided doses daily in the morning and evening up to Week 4, as per investigator's discretion.
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Arm title
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Placebo | |||||||||||||||||||||||||||
Arm description |
Placebo matched to ziprasidone capsule orally twice daily up to Week 4. | |||||||||||||||||||||||||||
Arm type |
Placebo | |||||||||||||||||||||||||||
Investigational medicinal product name |
Placebo
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Capsule
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Routes of administration |
Oral use
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Dosage and administration details |
Placebo matched to ziprasidone daily up to Week 4.
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Baseline characteristics reporting groups
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Reporting group title |
Ziprasidone
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Reporting group description |
Ziprasidone capsule administered orally in 2 divided doses with a starting dose of ziprasidone 20 milligram per day (mg/day) as an evening dose on Day 1. This was followed by dose escalation as per investigator’s discretion. | ||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Placebo
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Reporting group description |
Placebo matched to ziprasidone capsule orally twice daily up to Week 4. | ||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Ziprasidone
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Reporting group description |
Ziprasidone capsule administered orally in 2 divided doses with a starting dose of ziprasidone 20 milligram per day (mg/day) as an evening dose on Day 1. This was followed by dose escalation as per investigator’s discretion. | ||
Reporting group title |
Placebo
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Reporting group description |
Placebo matched to ziprasidone capsule orally twice daily up to Week 4. |
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End point title |
Change from Baseline in Young Mania Rating Scale (YMRS) Score at Week 4 | ||||||||||||||||||
End point description |
YMRS: an 11-item scale that measured the severity of manic episodes. Four items were rated on a scale from 0 (symptom absent) to 8 (symptom extremely severe). The remaining items were rated on a scale from 0 (symptom absent) to 4 (symptom extremely severe). YMRS total score ranged from 0 to 60, higher score indicated higher severity of mania. Intent-to-treat (ITT): all randomized subjects who had baseline measurements, took at least (>=) 1 dose of study medication (ziprasidone or placebo) and had >=1 post-baseline visit. Here, ‘n’ signifies those subjects who were available for this measure at given time points for each group.
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End point type |
Primary
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End point timeframe |
Baseline, Week 4
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Statistical analysis title |
Change at Week 4 | ||||||||||||||||||
Statistical analysis description |
Mixed effects repeated measures Analysis of Covariance (ANCOVA) model with center and subject within center as random effects, treatment, visit and visit by treatment interaction as fixed effects and baseline score as a covariate was used for the analysis.
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Comparison groups |
Placebo v Ziprasidone
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Number of subjects included in analysis |
229
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||||||||
P-value |
= 0.0005 | ||||||||||||||||||
Method |
ANCOVA | ||||||||||||||||||
Parameter type |
Least Squares Mean Difference | ||||||||||||||||||
Point estimate |
-5.22
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Confidence interval |
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level |
95% | ||||||||||||||||||
sides |
2-sided
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lower limit |
-8.12 | ||||||||||||||||||
upper limit |
-2.31 | ||||||||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
1.48
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End point title |
Change from Baseline in Young Mania Rating Scale (YMRS) Score at Week 1, 2 and 3 | |||||||||||||||||||||
End point description |
YMRS: an 11-item scale that measured the severity of manic episodes. Four items were rated on a scale from 0 (symptom absent) to 8 (symptom extremely severe). The remaining items were rated on a scale from 0 (symptom absent) to 4 (symptom extremely severe). YMRS total score ranged from 0 to 60, higher score indicated higher severity of mania. ITT population. ‘n’ signifies those subjects who were available for this measure at given time points for each group respectively.
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End point type |
Secondary
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End point timeframe |
Baseline, Week 1, 2, 3
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Notes [1] - Subjects who were available for this measure. [2] - Subjects who were available for this measure. |
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Statistical analysis title |
Change at Week 1 | |||||||||||||||||||||
Statistical analysis description |
Mixed effects repeated measures ANCOVA model with center and subject within center as random effects, treatment, visit and visit-by-treatment interaction as fixed effects and baseline score as a covariate was used for the analysis.
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Comparison groups |
Ziprasidone v Placebo
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Number of subjects included in analysis |
216
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Analysis specification |
Pre-specified
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Analysis type |
superiority | |||||||||||||||||||||
P-value |
= 0.0006 | |||||||||||||||||||||
Method |
ANCOVA | |||||||||||||||||||||
Parameter type |
Least Squares Mean Difference | |||||||||||||||||||||
Point estimate |
-3.2545
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Confidence interval |
||||||||||||||||||||||
level |
95% | |||||||||||||||||||||
sides |
2-sided
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lower limit |
-5.1045 | |||||||||||||||||||||
upper limit |
-1.4046 | |||||||||||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
0.9422
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Statistical analysis title |
Change at Week 2 | |||||||||||||||||||||
Statistical analysis description |
Mixed effects repeated measures ANCOVA model with center and subject within center as random effects, treatment, visit and visit-by-treatment interaction as fixed effects and baseline score as a covariate was used for the analysis.
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Comparison groups |
Ziprasidone v Placebo
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Number of subjects included in analysis |
216
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Analysis specification |
Pre-specified
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Analysis type |
superiority | |||||||||||||||||||||
P-value |
= 0.0117 | |||||||||||||||||||||
Method |
ANCOVA | |||||||||||||||||||||
Parameter type |
Least Squares Mean Difference | |||||||||||||||||||||
Point estimate |
-3.5857
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Confidence interval |
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level |
95% | |||||||||||||||||||||
sides |
2-sided
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lower limit |
-6.3705 | |||||||||||||||||||||
upper limit |
-0.8009 | |||||||||||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
1.4184
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Statistical analysis title |
Change at Week 3 | |||||||||||||||||||||
Statistical analysis description |
Mixed effects repeated measures ANCOVA model with center and subject within center as random effects, treatment, visit and visit-by-treatment interaction as fixed effects and baseline score as a covariate was used for the analysis.
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Comparison groups |
Ziprasidone v Placebo
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Number of subjects included in analysis |
216
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Analysis specification |
Pre-specified
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Analysis type |
superiority | |||||||||||||||||||||
P-value |
= 0.0047 | |||||||||||||||||||||
Method |
ANCOVA | |||||||||||||||||||||
Parameter type |
Least Squares Mean Difference | |||||||||||||||||||||
Point estimate |
-4.8665
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Confidence interval |
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level |
95% | |||||||||||||||||||||
sides |
2-sided
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lower limit |
-8.2345 | |||||||||||||||||||||
upper limit |
-1.4985 | |||||||||||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
1.7154
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End point title |
Change from Baseline in Clinical Global Impression - Severity (CGI-S) Score at Week 1, 2, 3 and 4 | |||||||||||||||||||||||||||
End point description |
CGI-S: 7-point clinician rated scale to assess severity of subject's current illness state; range: 1 (normal - not ill at all) to 7 (among the most extremely ill). ITT population. Here, ‘n’ signifies those subjects who were available for this measure at given time points for each group respectively.
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End point type |
Secondary
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End point timeframe |
Baseline, Week 1, 2, 3, 4
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Statistical analysis title |
Change at Week 1 | |||||||||||||||||||||||||||
Statistical analysis description |
Mixed effects repeated measures ANCOVA model with center and subject within center as random effects, treatment, visit and visit-by-treatment interaction as fixed effects and baseline score as a covariate was used for the analysis.
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Comparison groups |
Ziprasidone v Placebo
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Number of subjects included in analysis |
229
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Analysis specification |
Pre-specified
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Analysis type |
superiority | |||||||||||||||||||||||||||
P-value |
= 0.0002 | |||||||||||||||||||||||||||
Method |
ANCOVA | |||||||||||||||||||||||||||
Parameter type |
Least Squares Mean Difference | |||||||||||||||||||||||||||
Point estimate |
-0.3754
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Confidence interval |
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level |
95% | |||||||||||||||||||||||||||
sides |
2-sided
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lower limit |
-0.5696 | |||||||||||||||||||||||||||
upper limit |
-0.1812 | |||||||||||||||||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
0.0989
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Statistical analysis title |
Change at Week 2 | |||||||||||||||||||||||||||
Statistical analysis description |
Mixed effects repeated measures ANCOVA model with center and subject within center as random effects, treatment, visit and visit-by-treatment interaction as fixed effects and baseline score as a covariate was used for the analysis.
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Comparison groups |
Ziprasidone v Placebo
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Number of subjects included in analysis |
229
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Analysis specification |
Pre-specified
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Analysis type |
superiority | |||||||||||||||||||||||||||
P-value |
< 0.0001 | |||||||||||||||||||||||||||
Method |
ANCOVA | |||||||||||||||||||||||||||
Parameter type |
Least Squares Mean Difference | |||||||||||||||||||||||||||
Point estimate |
-0.5596
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Confidence interval |
||||||||||||||||||||||||||||
level |
95% | |||||||||||||||||||||||||||
sides |
2-sided
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lower limit |
-0.8256 | |||||||||||||||||||||||||||
upper limit |
-0.2936 | |||||||||||||||||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
0.1355
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Statistical analysis title |
Change at Week 3 | |||||||||||||||||||||||||||
Statistical analysis description |
Mixed effects repeated measures ANCOVA model with center and subject within center as random effects, treatment, visit and visit-by-treatment interaction as fixed effects and baseline score as a covariate was used for the analysis.
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Comparison groups |
Ziprasidone v Placebo
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Number of subjects included in analysis |
229
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Analysis specification |
Pre-specified
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Analysis type |
superiority | |||||||||||||||||||||||||||
P-value |
< 0.0001 | |||||||||||||||||||||||||||
Method |
ANCOVA | |||||||||||||||||||||||||||
Parameter type |
Least Squares Mean Difference | |||||||||||||||||||||||||||
Point estimate |
-0.6798
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Confidence interval |
||||||||||||||||||||||||||||
level |
95% | |||||||||||||||||||||||||||
sides |
2-sided
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lower limit |
-1.0024 | |||||||||||||||||||||||||||
upper limit |
-0.3572 | |||||||||||||||||||||||||||
Variability estimate |
Standard error of the mean
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|||||||||||||||||||||||||||
Dispersion value |
0.1643
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Statistical analysis title |
Change at Week 4 | |||||||||||||||||||||||||||
Statistical analysis description |
Mixed effects repeated measures ANCOVA model with center and subject within center as random effects, treatment, visit and visit-by-treatment interaction as fixed effects and baseline score as a covariate was used for the analysis.
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Comparison groups |
Ziprasidone v Placebo
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Number of subjects included in analysis |
229
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|||||||||||||||||||||||||||
Analysis specification |
Pre-specified
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|||||||||||||||||||||||||||
Analysis type |
superiority | |||||||||||||||||||||||||||
P-value |
= 0.0001 | |||||||||||||||||||||||||||
Method |
ANCOVA | |||||||||||||||||||||||||||
Parameter type |
Least Squares Mean Difference | |||||||||||||||||||||||||||
Point estimate |
-0.6884
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Confidence interval |
||||||||||||||||||||||||||||
level |
95% | |||||||||||||||||||||||||||
sides |
2-sided
|
|||||||||||||||||||||||||||
lower limit |
-1.0342 | |||||||||||||||||||||||||||
upper limit |
-0.3426 | |||||||||||||||||||||||||||
Variability estimate |
Standard error of the mean
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|||||||||||||||||||||||||||
Dispersion value |
0.1761
|
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End point title |
Clinical Global Impression - Improvement (CGI-I) Score | ||||||||||||||||||||||||
End point description |
CGI-I: 7-point clinician rated scale ranging from 1 (very much improved) to 7 (very much worse). Improvement is defined as a score of 1 (very much improved), 2 (much improved), or 3 (minimally improved) on the scale. ITT population. ‘n’ signifies those subjects who were available for this measure at given time points for each group respectively.
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End point type |
Secondary
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End point timeframe |
Week 1, 2, 3, 4
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Notes [3] - Subjects who were evaluable for this measure. [4] - Subjects who were evaluable for this measure. |
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Statistical analysis title |
Change at Week 4 | ||||||||||||||||||||||||
Statistical analysis description |
Mixed effects repeated measures ANCOVA model with center and subject within center as random effects, treatment, visit and visit-by-treatment interaction as fixed effects was used for the analysis.
|
||||||||||||||||||||||||
Comparison groups |
Ziprasidone v Placebo
|
||||||||||||||||||||||||
Number of subjects included in analysis |
217
|
||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||||||||||||||
Analysis type |
superiority | ||||||||||||||||||||||||
P-value |
= 0.0004 | ||||||||||||||||||||||||
Method |
ANCOVA | ||||||||||||||||||||||||
Parameter type |
Least Squares Mean Difference | ||||||||||||||||||||||||
Point estimate |
-0.76
|
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Confidence interval |
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level |
95% | ||||||||||||||||||||||||
sides |
2-sided
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lower limit |
-1.18 | ||||||||||||||||||||||||
upper limit |
-0.34 | ||||||||||||||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
0.21
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Adverse events information
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Timeframe for reporting adverse events |
Baseline up to 6 days after last dose of study drug
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Adverse event reporting additional description |
The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 subject and as nonserious in another, or 1 subject may have experienced both serious, nonserious event during study. EU BR specific AE tables were generated separately as per EU format using latest coding.
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Assessment type |
Non-systematic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
17.1
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Reporting groups
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Reporting group title |
Ziprasidone
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Reporting group description |
Ziprasidone capsule administered orally in 2 divided doses daily in the morning and evening with a starting dose of ziprasidone 20 mg/day as an evening dose on Day 1. This was followed by dose escalation of 20 mg/day every other day up to a target dose of ziprasidone 120 to 160 mg/day for subjects with >=45 kg weight and ziprasidone 60 to 80 mg/day for subjects with <45 kg weight over 2 weeks, as per investigator’s discretion. Flexible dosing of ziprasidone capsule 80 to 160 mg/day for subjects with >=45 kg weight and ziprasidone capsule 40 to 80 mg/day for subjects with <45 kg weight orally in 2 divided doses daily in the morning and evening up to Week 4, as per investigator's discretion. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Placebo
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Reporting group description |
Placebo matched to ziprasidone capsule orally twice daily up to Week 4. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 5% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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06 Dec 2006 |
1- Change in Trial Treatment to indicate that dosing adjustments could be made between 40-80 mg/day for subjects weighing under 45 kg.
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |