Type 2 Diabetes Clinical Trial
Official title:
Myocardial Dysfunction in Type 2 Diabetes Mellitus (T2DM) - Role of Intramyocellular Lipid Content and Mitochondrial Dysfunction in Myocardial Insulin Resistance and Their Correction With Pioglitazone
Verified date | October 2017 |
Source | The University of Texas Health Science Center at San Antonio |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The purpose of this study is to examine the existence of heart abnormalities in patients with diabetes and the effect of pioglitazone in correcting these abnormalities.
Status | Completed |
Enrollment | 130 |
Est. completion date | December 2011 |
Est. primary completion date | December 2011 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 75 Years |
Eligibility |
Inclusion Criteria: - Patients must be able to communicate meaningfully with the investigator and must be legally competent to provide written informed consent. - Patients may be of either sex. Female patients must be non-lactating and must either be at least one year post-menopausal, or be using adequate contraceptive precautions (i.e. oral contraceptives, approved hormonal implant, intrauterine device, diaphragm with spermicide, condom with spermicide), or be surgically sterilized (i.e. bilateral tubal ligation, bilateral oophorectomy). Female patients who have undergone a hysterectomy are eligible for participation in the study. Female patients (except for those patients who have undergone a hysterectomy or a bilateral oophorectomy) are eligible only if they have a negative pregnancy test throughout the study period - Patients must range in age from 18 to 75 years, inclusive. - Patients with type 2 diabetes must be drug naïve, receiving monotherapy with metformin or with a sulfonylurea, or combination therapy with both: metformin & sulfonylurea. - Patients must have the following laboratory values: - Hematocrit = 34 vol% - Serum creatinine = 1.8 mg/dl - AST (SGOT) = 2.5 times upper limit of normal - ALT (SGPT) = 2.5 times upper limit of normal - Alkaline phosphatase = 2 times upper limit of normal - Patients must have been on a stable dose of allowed chronic medications for 30 days prior to entering the study. - Only subjects whose body weight has been stable (±3-4 pounds) over the three months prior to study will be included. Exclusion Criteria: - Patients must not have type 1 diabetes. - Patients must not be receiving any medications with known adverse effects on glucose tolerance (except metformin or a sulfonylurea) unless the patient has been on stable doses of such agents for the past three months before entry into the study. Patients may be taking stable doses of estrogens or other hormonal replacement therapy, if the patient has been on these agents for the prior three months. Patients taking systemic glucocorticoids are excluded. - Patients with a history of clinically significant heart disease (New York Heart Classification greater than class 2; more than non-specific ST-T wave changes on the EKG), peripheral vascular disease (history of claudication), or pulmonary disease (dyspnea on exertion of one flight or less; abnormal breath sounds on auscultation) will not be studied. - Patients with hematocrit < 34% will be excluded. - Patient who were exposed to any procedure involves radiation exposure and his total radiation dose equivalent exceeds 5 rem during the past year will be excluded from the study. |
Country | Name | City | State |
---|---|---|---|
n/a |
Lead Sponsor | Collaborator |
---|---|
The University of Texas Health Science Center at San Antonio | Takeda Pharmaceuticals North America, Inc. |
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change in E to A Ratio | The E to A ratio is a marker of the function of the left ventricle of the heart. It represents the ratio of peak velocity flow in early diastole (the E wave) to peak velocity flow in late diastole caused by the atrial contraction (the A wave) This is measured using ultrasound-based cardiac imaging. In a healthy heart the E velocity is greater than the A velocity. | Baseline and 6-months Post Treatment | |
Primary | Myocardial Glucose Uptake | Measurement of change in myocardial glucose uptake from baseline to 6 months of treatment with pitoglitazone | Baseline and 6-months Post Treatment | |
Secondary | Change in Hemoglobin A1c | Change in hemoglobin A1c levels measured at 6 months | Baseline and 6-months Post Treatment |
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