Comparison of Continuing Olanzapine to Switching to Quetiapine in Overweight or Obese Patients With Schizophrenia and Schizoaffective Disorder
The Comparison of Efficacy and Safety of Continuing Olanzapine to Switching to Quetiapine in Overweight or Obese Patients With Schizophrenia and Schizoaffective Disorder
2 other identifiers
interventional
340
1 country
25
Brief Summary
The purposes of this study are to determine:
- The effectiveness of olanzapine as compared to quetiapine in treating and preventing the recurrence of a variety of symptoms of schizophrenia and schizoaffective disorder in patients who are obese or overweight.
- The safety of olanzapine as compared to quetiapine.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4 schizophrenia
Started Jul 2004
25 active sites
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
July 1, 2004
CompletedFirst Submitted
Initial submission to the registry
August 18, 2004
CompletedFirst Posted
Study publicly available on registry
August 23, 2004
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2006
CompletedNovember 6, 2007
November 1, 2007
August 18, 2004
November 5, 2007
Conditions
Outcome Measures
Primary Outcomes (5)
The primary objective of this study is to assess the treatment difference in time to relapse while on olanzapine 7.5-20 mg/day versus quetiapine 300-800 mg/day in the treatment of obese or overweight patients
with schizophrenia or schizoaffective disorder. Relapse is defined as the occurrence of at least one of the following three conditions:
Hospitalization for psychiatric reasons after Visit 2, or
20% worsening on the Positive and Negative Syndrome Sale (PANSS) Total and an increase in level of care, as compared to Visit 2, or
20% worsening on the PANSS Total compared to Visit 2 and worsening of CGI-S by at least one level compared to Visit 2 and CGI-S level of at least 4 (moderately ill).
Secondary Outcomes (16)
To assess within and between group changes in metabolic parameters including fasting glucose, hemoglobin Alc, lipids, and insulin
To assess within and between group changes in weight, waist circumference, BMI, appetite, and prevalence of patients meeting criteria for the metabolic syndrome
To assess within and between group changes in metabolic parameters (fasting glucose and lipids, and hemoglobin A1c) in a sub-group of patients with pre-existing diabetes prior to study entry
To assess the effect of olanzapine versus quetiapine on time to discontinuation for any reason, or lack of efficacy or worsening of psychiatric syndromes
To assess the efficacy of olanzapine versus quetiapine in improving psychopathology of schizophrenia as measured by a mean change from baseline on the PANSS and the Clinical Global Impression-Severity (CGI-S)
- +11 more secondary outcomes
Interventions
Eligibility Criteria
You may qualify if:
- You must be 18-75 years of age and be diagnosed with schizophrenia or schizoaffective disorder
- You must be able to visit the doctor's office thirteen (13) times over a twenty-six (26) week period
You may not qualify if:
- You are a woman and are pregnant or breastfeeding
- You have an acute or unstable medical illness, such as heart, liver, or kidney disease, or you have a seizure disorder. (Note: If you are uncertain about a particular condition, please discuss it with your physician.)
- You have a history of allergic reaction or intolerance to olanzapine or quetiapine
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (25)
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Garden Grove, California, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
La Mesa, California, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
San Diego, California, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Washington D.C., District of Columbia, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Miami, Florida, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Granite City, Illinois, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Lafayette, Indiana, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Lake Charles, Louisiana, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Baltimore, Maryland, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Detroit, Michigan, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Omaha, Nebraska, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Nashua, New Hampshire, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Clementon, New Jersey, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Kenilworth, New Jersey, United States
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Neptune City, New Jersey, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Princeton, New Jersey, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Brooklyn, New York, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
New York, New York, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Olean, New York, United States
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Rochester, New York, United States
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Cleveland, Ohio, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Springfield, Oregon, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Paoli, Pennsylvania, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Conroe, Texas, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559 or 317-615-4559) Mon-Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Waco, Texas, United States
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Call1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon-Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST)
Eli Lilly and Company
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
August 18, 2004
First Posted
August 23, 2004
Study Start
July 1, 2004
Study Completion
March 1, 2006
Last Updated
November 6, 2007
Record last verified: 2007-11