Study Stopped
The study was terminated due to insufficient sample size and protocol compliance issue.
A Study to Evaluate the Effect of Oral Paliperidone Extended-Release and Oral Risperidone Immediate-Release on Cognitive Function in Clinically Stable Patients With Schizophrenia
A Randomized, Open-Label, Study To Evaluate The Effect of Oral Paliperidone Extended-Release and Oral Risperidone Immediate-Release on Selected Cognitive Domains in Clinically Stable Subjects With Schizophrenia
2 other identifiers
interventional
17
1 country
3
Brief Summary
The purpose of this study is to compare the effect of oral paliperidone extended-release and oral risperidone immediate-release on cognitive function, especially the category fluency of Cognitive Abilities Screening Instrument, Chinese version (CASI C-2.0), in patients with an established diagnosis of schizophrenia.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_4 schizophrenia
Started Jan 2013
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 17, 2012
CompletedFirst Posted
Study publicly available on registry
August 21, 2012
CompletedStudy Start
First participant enrolled
January 1, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2015
CompletedApril 13, 2016
April 1, 2016
2.4 years
August 17, 2012
April 12, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in category fluency score of cognitive function scale (Cognitive Abilities Screening Instrument, Chinese version [CASI C-2.0]) from baseline to Week 24
CASI C-2.0 will be used to measure patient's cognitive ability. The range of CASI score is 0 to 100 (a higher score indicating better performance and is influenced by patient's educational level). The CASI C-2.0 provides quantitative assessment on 9 cognitive domains and 20 questions, including attention, concentration, orientation, short-term memory, long-term memory, language abilities, visual construction, category fluency, abstraction, and judgment.
Baseline (Week 0), Week 4, Week 12 and Week 24
Secondary Outcomes (6)
Change from baseline to Week 24 in score of Modified Wisconsin Card Sorting Test (MWCST) short version
Baseline, Week 4, Week 12 and Week 24
Change from baseline in score of Continuous Performance Test (CPT)
Baseline, Week 4, Week 12 and Week 24
Change from baseline in score of Personal and Social Performance (PSP) scale
Baseline, Week 4, Week 12 and Week 24
Change from baseline in score of Positive and Negative Syndrome Scale (PANSS)
Baseline, Week 4, Week 12 and Week 24
Change from baseline in score of Clinical Global Impression-severity (CGI-S) scale
Baseline, Week 4, Week 12 and Week 24
- +1 more secondary outcomes
Study Arms (2)
Paliperidone extended-release
EXPERIMENTALRisperidone immediate-release
ACTIVE COMPARATORInterventions
Patients will receive 6 mg to 12 mg of paliperidone extended-release tablet once daily orally.
Patients will receive 3 mg to 7 mg of risperidone immediate-release tablet orally.
Eligibility Criteria
You may qualify if:
- Diagnosed with schizophrenia
- Cognitive abilities screening instrument C-2.0 total score between 50 and 85 (inclusive) at baseline
- Baseline positive and negative syndrome scale score between 60 and 85 (inclusive)
- Clinical global impression-severity change less than or equal to 1 in the month prior to randomization
- Patients on a stable therapeutic dose of oral risperidone IR (between 3-6 mg/day) for at least 4 weeks prior to randomization
You may not qualify if:
- Treatment refractory patients, defined as failure of more than or equal to 2 adequate trials of second generation antipsychotic treatment for schizophrenia
- History of neuroleptic malignant syndrome
- Allergy or hypersensitivity to risperidone or paliperidone, or to any of the excipients of oral risperidone IR or paliperidone ER tablets
- Participants who have taken paliperidone ER in the past
- Participants who have been treated with clozapine or any long-acting injectable (depot) antipsychotic within 3 months before randomization
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
Unknown Facility
Bali Township, Taipei County, Taiwan
Unknown Facility
Hualien City, Taiwan
Unknown Facility
Kaohsiung City, Taiwan
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Johnson & Johnson Taiwan Ltd Clinical Trial
Johnson & Johnson Taiwan Ltd
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 17, 2012
First Posted
August 21, 2012
Study Start
January 1, 2013
Primary Completion
June 1, 2015
Study Completion
June 1, 2015
Last Updated
April 13, 2016
Record last verified: 2016-04