Randomized Study of Antihypertensives and Antilipemics in American Indians With Non-Insulin-Dependent Diabetes Mellitus at High Risk of Developing Nephropathy and Cardiovascular Disease
Nifedipine
+ Lisinopril
+ Nifedipine
Diabetes Mellitus+6
+ Enfermedades del Sistema Endocrino
+ Enfermedades Urogenitales Femeninas y Complicaciones del Embarazo
Estudio de Prevención
Resumen
Fecha de inicio: 1 de agosto de 1993
Fecha en la que se inscribió al primer participante.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.
Protocolo
Esta sección proporciona detalles del plan del estudio, incluyendo cómo está diseñado y qué se está evaluando.Se reclutarán 160 pacientes
Número total de participantes que el ensayo clínico espera reclutar.Estudio de Prevención
Elegibilidad
Los investigadores buscan pacientes que cumplan ciertos criterios, conocidos como criterios de elegibilidad: estado general de salud o tratamientos previos.Cualquier sexo
Sexo biológico de los participantes elegibles para inscribirse.A partir de 18 años
Rango de edades de los participantes que pueden unirse al estudio.Voluntarios sanos no permitidos
Indica si personas sanas, sin la condición que se estudia, pueden participar.Condiciones
Patología
Criterios
PROTOCOL ENTRY CRITERIA: --Disease Characteristics-- Non-insulin-dependent diabetes mellitus with documented fasting hyperglycemia Microalbuminuria OR clinically detectable albuminuria; Urine albumin excretion rate at least 30 mg/24 hours Low-density lipoproteins (fasting) at least 80 mg/dL Recruitment from American Indian population at Red Lake and Leech Lake reservations --Prior/Concurrent Therapy-- At least 5 days since antihypertensives or antilipemics --Patient Characteristics-- Renal: Urine albumin-to-creatinine ratio at least 30 mg/g; Creatinine clearance or estimated creatinine clearance at least 30 mL/min; No active urine sediment suggestive of glomerulonephritis, i.e.: No RBCs greater than 10/high-power field; No WBCs greater than 15/high-power field; No RBC casts Cardiovascular: No symptomatic orthostatic hypotension; No poorly-compensated congestive heart failure; No requirement for angiotensin-converting enzyme inhibitors; No angina pectoris requiring nifedipine; No unstable angina; No episodes of angina occurring more than once a month; No chest pain of undetermined cause within 1 month; No severe hypertension requiring multiple antihypertensives; No myocardial infarction within 1 year; No stroke or transient ischemic attack within 1 year Other: No known allergy to nifedipine, lisinopril, or simvastatin; No untreated proliferative retinopathy; Documented retinal exam within 1 year prior to entry; No alcohol or drug abuse affecting compliance; No other debilitating or acute illness; No pregnant or nursing women; Effective contraception required of fertile women
Plan de Estudio
Conoce todos los tratamientos administrados en este estudio, su descripción detallada y en qué consisten.4 grupos de intervención están designados en este estudio
0% de probabilidad de ser asignado al grupo placebo
Grupos de Tratamiento
Grupo I
ExperimentalGrupo II
ExperimentalGrupo III
ExperimentalGrupo IV
ExperimentalCentros del Estudio
Estos son los hospitales, clínicas o centros de investigación donde se lleva a cabo el estudio. Puedes encontrar la ubicación más cercana a ti y su estado de reclutamiento.Este estudio tiene una ubicación
Hennepin County Medical Center
Minneapolis, United StatesAbrir Hennepin County Medical Center en Google Maps