Efecto de los bloqueantes del sistema renina-angiotensina-aldosterona en la progresión de la enfermedad renal crónica de pacientes añosos con nefropatías no proteinúricas (ensayo clínico PROERCAN, NCT 03195023)
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2026
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29/09/2025
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Universidad Complutense de Madrid
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Actualmente no existe suficiente evidencia sobre el efecto nefroprotector de los bloqueantes del sistema renina-angiotensina-aldosterona (BSRAA) en pacientes añosos con enfermedad renal crónica (ERC) sin proteinuria y sin cardiopatía. Diseño.- Estudio prospectivo, aleatorizado, que compara la eficacia de los BSRAA frente a otros tratamientos antihipertensivos en la progresión de la enfermedad renal en pacientes mayores de 65 años con ERC estadios 3 y 4 e índice albumina/creatinina < 30 mg/g. Randomización 1:1 BSRAA o tratamiento antihipertensivo estándar. Se recogieron cifras tensionales y parámetros analíticos de un año previo a la randomización y durante el seguimiento. Hipótesis.- Los bloqueantes del SRAA no enlentecen la progresión de la enfermedad renal en pacientes mayores de 65 años con nefropatías no proteinúricas. Objetivo principal.- Evaluar el efecto de los BSRAA en la progresión de la ERC de pacientes añosos (> 65 años) con enfermedad renal crónica y sin proteinuria. Objetivos secundarios.-- Evaluar la seguridad de BSRAA en pacientes añosos con ERC no proteinúrica mediante la evaluación del número de episodios de hiperpotasemia y número de episodios de deterioro agudo de la función renal.- Evaluar el efecto de BSRAA en el riesgo cardiovascular de pacientes añosos con ERC.- Evaluar el efecto del uso de BSRAA en la mortalidad global y cardiovascular de pacientes añosos con ERC no proteinúricas. Resultados.- Se incluyeron 88 pacientes seguidos durante 3 años con edad media de 77,9±6,1 años, randomizados 40 al grupo BSRAA y 48 al grupo estándar. La etiología de ERC fue: 53 (60%) vascular, 16 (19%) intersticial y 19 (21%) no filiada...
Evidence about nefroprotective effect with RAAS blockers in elderly patients with chronic kidney disease (CKD) without proteinuria is lacking.Design.- Multicenter open-label, randomized controlled clinical trial including patients over 65 year-old with hypertension and CKD stages 3-4 without proteinuria. Patients were randomized in a 1:1 ratio to either receive RAAS blockers or other antihypertensive drugs and were followed up for three years.Hypothesis.- RAAS blockers do not slow CKD progression in elderly patients wihtout proteinuria.Main objective.- Evaluate the impact of RAAS blockers in CKD progression by estimated glomerular filtration rate (eGFR) decline in elderly patients without proteinuria.Secondary objectives.-- Evaluate the safety of ACE inhibitors in these patients, considering the number of hyperkaliemic events and acute renal failure episodes.- Evaluate the effect on cardiovascular events in elderly patients with CKD.- Evaluate the effect on cardiovascular and global mortality in the study population.Results.- 88 patients were included with a mean age of 77,9±6,1 years and a follow up period of 3 years: 40 were randomised to RAAS group and 48 to standard treatment. Ethiology of CKD was: 53 (60%) vascular, 16 (19%) interstitial and 19 (21%) of unknown ethiology. In the RAAS group eGFR slope during follow up was -4,3±1,1 ml/min, whereas in the standard treatment group an increase on eGFR was observed after 3 years (+4,6 ±0,4 ml/min), p=0,024. We found no differences in blood pressure control, number of antihypertensive drugs, albuminuria, serum potassium levels, incidence of cardiovascular events nor mortality during the follow up period...
Evidence about nefroprotective effect with RAAS blockers in elderly patients with chronic kidney disease (CKD) without proteinuria is lacking.Design.- Multicenter open-label, randomized controlled clinical trial including patients over 65 year-old with hypertension and CKD stages 3-4 without proteinuria. Patients were randomized in a 1:1 ratio to either receive RAAS blockers or other antihypertensive drugs and were followed up for three years.Hypothesis.- RAAS blockers do not slow CKD progression in elderly patients wihtout proteinuria.Main objective.- Evaluate the impact of RAAS blockers in CKD progression by estimated glomerular filtration rate (eGFR) decline in elderly patients without proteinuria.Secondary objectives.-- Evaluate the safety of ACE inhibitors in these patients, considering the number of hyperkaliemic events and acute renal failure episodes.- Evaluate the effect on cardiovascular events in elderly patients with CKD.- Evaluate the effect on cardiovascular and global mortality in the study population.Results.- 88 patients were included with a mean age of 77,9±6,1 years and a follow up period of 3 years: 40 were randomised to RAAS group and 48 to standard treatment. Ethiology of CKD was: 53 (60%) vascular, 16 (19%) interstitial and 19 (21%) of unknown ethiology. In the RAAS group eGFR slope during follow up was -4,3±1,1 ml/min, whereas in the standard treatment group an increase on eGFR was observed after 3 years (+4,6 ±0,4 ml/min), p=0,024. We found no differences in blood pressure control, number of antihypertensive drugs, albuminuria, serum potassium levels, incidence of cardiovascular events nor mortality during the follow up period...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Medicina, leída el 29/09/2025. Tesis formato europeo (compendio de artículos)










