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Medicina Clínica (English Edition) Use of ISGLT2 in kidney transplant recipients without diabetes mellitus
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Use of ISGLT2 in kidney transplant recipients without diabetes mellitus

Utilización de ISGLT2 en receptores de trasplante renal sin diabetes mellitus
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Pilar Fraile Gómeza,b,e,f,
Corresponding author
mpfraile@saludcastillayleon.es

Corresponding author.
, Marina López Canoa, Elena Villanueva Sánchezb,e,f, Alexandra Lizarazo Suarezb, Silvia Sánchez-Monterob,e,f, Fernanda Lorenzo Gómeza,c,d,e
a Facultad de Medicina, Universidad de Salamanca, Salamanca, Spain
b Servicio de Nefrología, Hospital Universitario de Salamanca, Salamanca, Spain
c Servicio de Urología, Hospital Universitario de Salamanca, Salamanca, Spain
d Grupo de Investigación Multidisciplinar Renal y Urológico, Instituto de Investigaciones Biomédicas de Salamanca (IBSAL), Salamanca, Spain
e Instituto de Investigaciones Biomédicas de Salamanca (IBSAL), Salamanca, Spain
f Grupo de Investigación Traslacional en Enfermedades Renales y Cardiovasculares (TRECARD), Salamanca, Spain
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Abstract
Introduction

Kidney transplant (KT) recipients have a very high cardiovascular and renal risk. Sodium–glucose cotransporter-2 inhibitors (iSGLT2) have demonstrated cardiorenal benefits in non-transplanted populations with chronic kidney disease, both diabetic and non-diabetic, but evidence in KT recipients remains scarce. There is an unmet clinical need for additional nephroprotective and cardiometabolic interventions in KT without diabetes mellitus (DM). We aimed to assess safety, renal function and metabolic effects of SGLT2i in non-diabetic KT recipients.

Methods

Retrospective single-centre observational study including 28 non-diabetic KT recipients (no pre-existing DM or post-transplant DM) from the University Hospital of Salamanca treated with SGLT2i (2023–2025). We analysed renal function trajectories (serum creatinine, eGFR CKD-EPI, urine protein/creatinine ratio [PCR] and urine albumin/creatinine ratio [ACR), lipid profile, electrolytes, HbA1c, immunosuppression, adverse events and acute rejection, with follow-up at 1, 6 and 12 months.

Results

Mean age at SGLT2i initiation was 57 ± 13 years; 89,3% were men. The main indication was non-nephrotic proteinuria. After an initial eGFR decline, renal function subsequently stabilised. PCR and ACR decreased significantly at one year. Body mass index and total cholesterol also declined. There were no clinically relevant changes in immunosuppressant levels and no increase in rejection episodes. Diarrhoea and urinary tract infections (7%) were the most frequent adverse events, without euglycaemic ketoacidosis.

Conclusions

SGLT2i therapy showed acceptable safety and a possible reno-metabolic benefit in non-diabetic KT recipients. Controlled trials with longer follow-up are required to determine the robustness of this indication.

Keywords:
SGLT2 inhibitors
Kidney transplantation
Chronic kidney disease
Proteinuria
Graft survival
Resumen
Introducción

Los receptores de trasplante renal (TR) presentan elevado riesgo cardiovascular y renal. Los inhibidores del cotransportador sodio-glucosa tipo 2 (iSGLT2) han demostrado beneficios cardiovasculares y renales en población con enfermedad renal crónica diabética y no diabética no trasplantada, pero la evidencia en TR es muy limitada. Existe una necesidad clínica no cubierta de intervenciones nefroprotectoras y cardiometabólicas adicionales en trasplantados renales sin diabetes mellitus (DM). El objetivo de este estudio es evaluar la seguridad, función renal y beneficios metabólicos de los iSGLT2 en receptores de TR no diabéticos.

Material y métodos

Estudio observacional retrospectivo unicéntrico en 28 receptores de TR sin DM ni DM postrasplante renal del Hospital Universitario de Salamanca tratados con iSGLT2 (2023-2025). Se analizó la evolución de la función renal (Cr, TFGe CKD-EPI, proteína/creatinina en orina [PCR], albúmina/Cr en orina [ACR]), perfil lipídico, electrólitos, HbA1c, inmunosupresión, efectos adversos y rechazo agudo, con seguimiento en los meses 1.∘, 6.∘ y 12.∘.

Resultados

La edad media fue 57 ± 13,03 años. El 89,3% eran hombres. La indicación principal de iSGLT2 fue proteinuria no nefrótica. El eGFR mostró estabilización tras un descenso inicial. La PCR y la ACR se redujeron significativamente al año. El índice de masa corporal y el colesterol total disminuyeron de forma significativa. No hubo variaciones relevantes en los niveles de inmunosupresores ni incremento de rechazo. La diarrea e infecciones urinarias (7%) fueron los efectos adversos más frecuentes, sin cetoacidosis euglucémica.

Conclusiones

Los iSGLT2 mostraron seguridad aceptable y posible beneficio renometabólico en TR sin DM. Se requieren estudios controlados y mayor seguimiento para consolidar su indicación.

Palabras clave:
Enfermedad renal crónica
Inhibidores de SGLT2
Proteinuria
Supervivencia del injerto
Trasplante renal

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