Assessment of Safety and Efficacy of Therapy for the Prevention of Weight Gain Associated With Olanzapine
The Assessment of the Safety, Efficacy, and Practicality of an Algorithm Including Amantadine, Metformin and Zonisamide for the Prevention of Olanzapine-Associated Weight Gain in Outpatients With Schizophrenia
2 other identifiers
interventional
199
7 countries
15
Brief Summary
The goal of this study is to answer the following questions:
- Whether treatment with amantadine, metformin or zonisamide can prevent or reverse the weight gain that is associated with olanzapine
- Whether taking amantadine, metformin or zonisamide can help patients decrease or eliminate some of the changes in body that occur with weight gain
- How weight gain associated with olanzapine can affect people
- Whether treatment with amantadine, metformin or zonisamide can help eliminate weight gain associated with olanzapine and not interfere with the positive effects of olanzapine on functioning of people with schizophrenia and other diseases
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3 schizophrenia
Started Nov 2006
15 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
Study Start
First participant enrolled
November 1, 2006
CompletedFirst Submitted
Initial submission to the registry
November 17, 2006
CompletedFirst Posted
Study publicly available on registry
November 22, 2006
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2008
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2008
CompletedResults Posted
Study results publicly available
September 30, 2009
CompletedOctober 6, 2009
September 1, 2009
1.8 years
November 17, 2006
August 27, 2009
September 30, 2009
Conditions
Outcome Measures
Primary Outcomes (1)
Change From Baseline to Endpoint in Weight
Baseline to endpoint (22 weeks)
Secondary Outcomes (10)
Mean Change From Baseline to Endpoint in Fasting Triglycerides
Baseline to endpoint (22 weeks)
Mean Change From Baseline to Endpoint in Fasting Total Cholesterol
Baseline to endpoint (22 weeks)
Mean Change From Baseline to Endpoint in Fasting High Density Lipoprotein (HDL) Cholesterol
Baseline to endpoint (22 weeks)
Mean Change From Baseline to Endpoint in Fasting Low Density Lipoprotein (LDL) Cholesterol
Baseline to endpoint (22 weeks)
Mean Change From Baseline to Endpoint in Fasting Glucose
Baseline to endpoint (22 weeks)
- +5 more secondary outcomes
Study Arms (3)
Olanzapine
EXPERIMENTALolanzapine plus behavioral information
Olanzapine + Amantadine
EXPERIMENTALOlanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information
Olanzapine + Metformin
EXPERIMENTALOlanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information
Interventions
5-20 milligrams (mg), oral, daily for 22 weeks.
Amantadine, 100 milligrams (mg), oral, 1 twice a day (BID). Patients who gained greater than 3 kilograms (kg) will switch to metformin. Patients who gained greater than 3 kg after switching to metformin will be switched to zonisamide.
Metformin, 500 mg, oral, twice a day (BID) for 2 weeks titrated to 500mg three times a day (TID) thereafter. Patients who gain greater than 3 kilograms (kg) will be switched to amantadine. Patients who gained greater than 3 kg after switching to amantadine will be switched to zonisamide.
weight management
Eligibility Criteria
You may qualify if:
- You must have been diagnosed with schizophrenia or schizoaffective disorder
- You must be able to visit the doctor's office once every two weeks for three months, then once every four weeks for the next three months with a possible bi-weekly visit during the fifth month
- If you are currently taking a medication for schizophrenia or schizoaffective disorder, you have been taking it for at least 30 days without any changes
- If you are a female, you must have a negative pregnancy test and be using an effective method of contraception
You may not qualify if:
- You have a diagnosis of bipolar I disorder, diabetes, very high triglyceride level (fasting triglycerides greater than or equal to 500 mg/dL), recent heart attack, stroke, uncontrolled seizures, serious infection, unstable heart disease (such as ischemic heart disease or congestive heart failure), an uncorrected narrow angle glaucoma or human immunodeficiency virus (HIV)
- You have diseases of the intestinal tract, lungs, liver, kidney, nervous or endocrine systems, or blood
- You have a diagnosis of an eating disorder
- You have a history of Parkinson's Disease or any related disorders
- You are allergic to sulfa drugs or any of the medications involved in this study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (15)
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
National City, California, 91950, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Canton, Ohio, 44708, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Johnson City, Tennessee, 37614, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Memphis, Tennessee, 38105, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
DeSoto, Texas, 75115, United States
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Rio de Janeiro, 21020-130, Brazil
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Salvador, 40301500, Brazil
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Beer Yaacov, 70350, Israel
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Mexico City, 14050, Mexico
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Bayamón, 00961, Puerto Rico
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Ponce, 00717, Puerto Rico
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
San Juan, 00907, Puerto Rico
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
San Juan, Puerto Rico
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Moscow, 117603, Russia
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
Seoul, 143-711, South Korea
Related Publications (2)
Hoffmann VP, Case M, Jacobson JG. Assessment of treatment algorithms including amantadine, metformin, and zonisamide for the prevention of weight gain with olanzapine: a randomized controlled open-label study. J Clin Psychiatry. 2012 Feb;73(2):216-23. doi: 10.4088/JCP.09m05580. Epub 2011 May 17.
PMID: 21672497DERIVEDCase M, Treuer T, Karagianis J, Hoffmann VP. The potential role of appetite in predicting weight changes during treatment with olanzapine. BMC Psychiatry. 2010 Sep 14;10:72. doi: 10.1186/1471-244X-10-72.
PMID: 20840778DERIVED
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Chief Medical Officer
- Organization
- Eli Lilly and Company
Study Officials
- STUDY DIRECTOR
Call 1-877-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
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- GT60
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
November 17, 2006
First Posted
November 22, 2006
Study Start
November 1, 2006
Primary Completion
September 1, 2008
Study Completion
September 1, 2008
Last Updated
October 6, 2009
Results First Posted
September 30, 2009
Record last verified: 2009-09