Safety and Efficacy of Switching to Quetiapine in Outpatients With Schizophrenia
Q-chase
A Non-interventional, Open Label, Phase IV Observational Study for the Safety and Efficacy of Switching to Quetiapine (Seroquel) in Outpatients With Schizophrenia Who Have Been Unsuccessfully Treated With Other Antipsychotics
1 other identifier
observational
576
0 countries
N/A
Brief Summary
This is a single-arm, phase IV, open-label, prospective, non interventional study in approximately 600 patients that will be followed for 6 months in order to evaluate the safety and efficacy of quetiapine. Patients will be switched over a 4 to 7 day cross-titration period from their previous antipsychotic medication to quetiapine according to the approved SPC.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jun 2007
Shorter than P25 for all trials
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 1, 2007
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2008
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2008
CompletedFirst Submitted
Initial submission to the registry
June 2, 2008
CompletedFirst Posted
Study publicly available on registry
June 4, 2008
CompletedDecember 9, 2010
December 1, 2010
10 months
June 2, 2008
December 8, 2010
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Safety of quetiapine assessed through analysis of AE/SAE data (rate of patients presenting SAEs, rate of patients who discontinue treatment due to any AE, time to treatment discontinuation due to any AEs)
5 visits (Day 0, Week 1, Week 4, Week 12, Week 24); SAEs will be reported during all study period
Secondary Outcomes (2)
Changes in the Clinical Global Impression of Severity and Improvement (CGI-S, CGI-I) and in Brief psychiatric Rating Scale (BPRS) from baseline to end of study treatment
5 visits (Day 0, Week 1, Week 4, Week 12, Week 24)
Percentage of extra-pyramidal side effects assessed using the Simpson-Angus Scale (SAS)
Changes from baseline to end of study treatment or (6 months) or early withdrawal
Eligibility Criteria
Primary Care
You may qualify if:
- Diagnosis of schizophrenia at least 1 year prior to screening
- Inadequate response or poor safety /tolerability or non-compliance to previous antipsychotic medication
- Provision of Informed Consent prior to enrolment
You may not qualify if:
- Known hypersensitivity to active substance of excipients
- Patients receiving P450 3A4 inhibitors
- Pregnancy or lactation
- Substance abuse or dependence
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- AstraZenecalead
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
June 2, 2008
First Posted
June 4, 2008
Study Start
June 1, 2007
Primary Completion
April 1, 2008
Study Completion
April 1, 2008
Last Updated
December 9, 2010
Record last verified: 2010-12