- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00231894
Pioglitazone as a Treatment for Lipid and Glucose Abnormalities In Patients With Schizophrenia
November 9, 2017 updated by: Robert C. Smith MD PhD, Nathan Kline Institute for Psychiatric Research
Pioglitazone as a Treatment for Lipid and Glucose Abnormalities In Patients With Schizophrenia Treated With Antipsychotic Medication And Potential Effects on Cognitive Function
This is a study with an approved drug for treating type 2 diabetes, for its effects on treating glucose and lipid abnormalities in patients being treated with first or second-generation antipsychotics, and comparison of effects of this drug with another treatment lifestyle modification.
Patients who meet inclusion criteria will be treated with pioglitazone for 12 weeks.
They will be evaluated for fasting glucose and lipids, glucose-tolerance tests, and neurocognitive battery and tests of verbal memory at baseline and during treatment with pioglitazone.
Study Overview
Status
Completed
Intervention / Treatment
Detailed Description
The aim of this study is to investigate the effects of pioglitazone added to weight-lifestyle intervention vs. placebo plus lifestyle intervention on reversing or reducing impaired or abnormal triglycerides, HDL and glucose metabolism in schizophrenics treated with first or second-generation antipsychotics.. Another aim is to examine the effects of impaired glucose metabolism on verbal memory and other cognitive function in schizophrenic patients treated with these medications and the relationship to improvements in impaired glucose metabolism to impairments in cognitive function.
Clozapine and olanzapine, and some other first or second-generation antipsychotics effective for treating schizophrenia and bipolar disorders, have been reported to be associated with increased incidence of diabetic type metabolic abnormalities, decreases in insulin sensitivity, and abnormal glucose tolerance tests.
This can lead to the development of type 2 diabetes and also abnormal lipid metabolic levels which can lead to atherosclerotic changes and increased risk of cardiovascular disease and other diabetes related complications.
Drug treatments which could reduce or correct these diabetic metabolic changes would permit many patients to continue to receive the benefits of these antipsychotic medications with reduced drug-induced comorbidity.
Previous research using non-psychotic subjects has shown that diabetes and impaired glucose tolerance are associated with cognitive impairments, especially in verbal memory, and provides a rationale for testing whether corrections of impaired glucose metabolism are associated with cognitive improvements in schizophrenic patients.
Study Type
Interventional
Enrollment (Actual)
56
Phase
- Phase 4
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
New York
-
New York, New York, United States, 10035
- Nathan Kline Institute for Psychiatric Research
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 70 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Patients will be males or females, 18-70 yrs of age, with a diagnosis of schizophrenia or schizoaffective disorder, and currently being treated with olanzapine or clozapine.
Patients will have evidence of:
- glucose levels indicating at least impaired fasting glucose: fasting glucose 100 mg/dL or 2 hr glucose tolerance test 140 mg/dL, or current treatment with oral antidiabetic drugs with history of hyperglycemia;
- Triglyceride levels > 120 mg/dL and/or HDL levels < 40 mg/dL
Exclusion Criteria:
- Diabetes mellitus, type 1
- Recent diabetic ketoacidosis;
- Patients not currently treated with oral antidiabetic drugs but fasting is glucose 140 mg/dL [WHO criteria] on repeat testing in last three months, or random blood glucose >200 mg/dL plus 2 hr glucose on GTT >200 mg/dL; (these patients may need more immediate treatment with antidiabetic drugs and it is less certain if weight-lifestyle treatment would be effective in treating such high glucose levels);
- Patients with active liver disease with clinical abnormalities which need current treatment, or liver enzymes (Alt) 3 times upper limit for normal values in chart records in last year, or patients who are recorded as positive for hepatitis C;
- Congestive heart failure (Class III or IV cardiac status) or history of MI in medical record (because pioglitazone can increase blood volume slightly);
- Hematocrit greater than 10% below normal (hematocrit may be decreased 2 to 4% due to increased plasma volume);
- Female patients on current oral contraceptives (because pioglitazone may interfere with effects of some oral contraceptives);
- Patients taking ketoconazole,
- Patients who have started on atorvastatin or gemfibrozil in the past 2 months or have had a dose increase in atorvastatin in the last month (since these drugs can also lower triglycerides and raise HDL, recent start of therapy with these drugs could be a confound).
- Patients are not concomitantly treated with aripiprazole or ziprasidone.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Pioglitazone and life-style group
Pioglitazone (30-45 mg/daily) plus life-style diet group
|
pioglitazone 30-45 mg/day
Other Names:
life style diet education group 1x/week
|
Placebo Comparator: Placebo and life style group
Placebo capsules daily plus life-style diet group
|
life style diet education group 1x/week
placebo comparator capsules
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change From Baseline in Serum Triglycerides at 3 Months ( 3 Months-baseline) US Sample
Time Frame: pre-treatment and during 3 months of treatment
|
pre-treatment and during 3 months of treatment
|
|
Change From Baseline in Serum HDL at 3 Months (3 Months-baseline) US Sample
Time Frame: pre-treatment and during 3 months of treatment
|
serum high density lipoprotein (HDL)
|
pre-treatment and during 3 months of treatment
|
Change From Baseline in Serum Glucose at 3 Months (3 Months-baseline) US Sample
Time Frame: pretreatment and during 3 months of drug treatment
|
pretreatment and during 3 months of drug treatment
|
|
2 Hour Glucose From Glucose Tolerance Test US Sample
Time Frame: between baseline and 3 months of study drug treatment
|
difference between 2 hr glucose for GTT test at baseline vs after 3 months of drug treatment
|
between baseline and 3 months of study drug treatment
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in RBANS List Recognition Scores at 3 Months (3 Months-baseline) US Sample
Time Frame: pre-treatment and 3 months of treatment
|
The scale is Repeatable Battery for the Assessment to Neuropsychological Status (RBANS).
This scale measure cognitive function in patients with schizophrenia.
Range for list learning sub-score is 0 to 20 .
Higher values indicate better performance.
For change score (3 months -baseline) positive values indicate improved performance for this cognitive function and negative values indicate poorer performance on this cognitive function.
|
pre-treatment and 3 months of treatment
|
Change From Baseline in Serum Glucose at 3 Months ( 3 Months -Baseline) China Sample
Time Frame: pretreatment and during 3 months of drug treatment
|
pretreatment and during 3 months of drug treatment
|
|
Change From Baseline in Serum Triglycerides at 3 Months (3 Months-baseline) China Sample
Time Frame: pretreatment and during 3 months of drug treatment
|
pretreatment and during 3 months of drug treatment
|
|
2 Hour Glucose From Glucose Tolerance Test China Sample
Time Frame: between baseline and 3 months of study drug treatment
|
difference between 2 hr glucose for GTT test at baseline vs after 3 months of drug treatment
|
between baseline and 3 months of study drug treatment
|
Change From Baseline in Serum HDL at 3 Months (3 Months-baseline) China Site
Time Frame: pretreatment and during 3 months of drug treatment
|
pretreatment and during 3 months of drug treatment
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Principal Investigator: Robert C Smith, MD PhD, NYU School of Medicine & Nathan Kline Institute for Psychiatric Research
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Smith RC et al Pioglitazone as a treatment for glucose and lipid abnormalities in schizophrenic patents: A double-blind placebo controlled trial. NCDEU 51lst Annual Meeting Oral Presentation Abstract Book, 2011, p.13.
- Smith RC, Jin H, Li C, Bark N, Shekhar A, Dwivedi S, Mortiere C, Lohr J, Hu Q, Davis JM. Effects of pioglitazone on metabolic abnormalities, psychopathology, and cognitive function in schizophrenic patients treated with antipsychotic medication: a randomized double-blind study. Schizophr Res. 2013 Jan;143(1):18-24. doi: 10.1016/j.schres.2012.10.023. Epub 2012 Nov 29.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
May 1, 2005
Primary Completion (Actual)
January 1, 2010
Study Completion (Actual)
January 1, 2010
Study Registration Dates
First Submitted
October 3, 2005
First Submitted That Met QC Criteria
October 3, 2005
First Posted (Estimate)
October 4, 2005
Study Record Updates
Last Update Posted (Actual)
December 11, 2017
Last Update Submitted That Met QC Criteria
November 9, 2017
Last Verified
November 1, 2017
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 04T-584 Stanley Foundation
- 04T-584 (Other Grant/Funding Number: Stanley Foundation)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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