Drugs for High Blood Pressure & High Cholesterol in American Indians With

Status Completed

Clinical Trial Summary

OBJECTIVES:

I. Establish a long-term working relationship between clinical investigators and the Minnesota American Indian community.

II. Compare the effectiveness of lisinopril (an angiotensin-converting enzyme inhibitor) and nifedipine (a calcium channel blocker) in preventing nephropathy and vascular disease in Minnesota American Indians with non-insulin-dependent diabetes mellitus and microalbuminuria.

III. Compare the effectiveness of simvastatin (a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor) with lipid-lowering strategies recommended by the National Cholesterol Education Program in preventing nephropathy and vascular diseases in these patients.

Clinical Trial Description

PROTOCOL OUTLINE:

Patients are randomly assigned to 1 of 4 treatment groups; therapy continues for 3 years. All patients receive instruction on diet, exercise, and smoking cessation.

The first group receives daily nifedipine at a dose adjusted for high blood pressure. Cholestyramine or gemfibrozil is administered per National Cholesterol Education Program guidelines. Diuretics and doxazosin may be given concurrently.

The second group receives daily lisinopril at a dose adjusted for high blood pressure. Cholestyramine or gemfibrozil is administered per National Cholesterol Education Program guidelines. Diuretics and doxazosin may be given concurrently.

The third group receives daily nifedipine at a dose adjusted for high blood pressure, and simvastatin at a dose adjusted for high low-density lipoproteins. Supplemental cholestyramine may be given as needed. If cholestyramine is not tolerated or if triglycerides are high, gemfibrozil is substituted for cholestyramine.

The fourth group receives lisinopril at a dose adjusted for high blood pressure and simvastatin at a dose adjusted for high low-density lipoproteins. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00004266
Study type	Interventional
Source	National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Contact
Status	Completed
Phase	Phase 3
Start date	August 1993
Completion date	July 1999

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Drugs for High Blood Pressure and High Cholesterol in American Indians With Type 2 Diabetes

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms