Prospective Study to Assess Progression of Renal Markers after Interruption of Tenofovir due to Nephrotoxicity

Anna Bonjoch, Patricia Echeverría, Núria Perez-Alvarez, Jordi Puig, Carla Estany, Bonaventura Clotet, Eugènia Negredo

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5 Citations (Scopus)

Abstract

© 2016 Anna Bonjoch et al. Background. Prospective studies about the reversibility of tenofovir disoproxil fumarate- (TDF-) related renal impairment remain scarce. Methods. This is an observational prospective study including all patients that presented at our HIV Unit who interrupted TDF owing to nephrotoxicity. We assessed the evolution of renal parameters after discontinuation of this drug. Results. We included 59 patients, who were followed up for 72 weeks. Most were male (41, 69.5%), median (IQR) age was 53 (44; 58) years, and median time receiving TDF-containing regimens was 55.4 (28; 87.7) months. Most patients were receiving PI-based treatments (67%). At the final visit, most of the subjects showed complete recovery (35, 59.3%) or improvement (13 subjects, 22%). Significant improvements were observed in creatinine levels (from 84.9 [73.8; 97.5] to 78 [69.6; 91] μmol/L, p=0.013), estimated glomerular filtration rate (eGFR, CKD EPI equation, from 87.7 [67; 99] to 89.9 [73.6; 99.3] mL/min/1.73 m2, p=0.017), and number of patients with eGFR <60 mL/min/1.73 m2 (from 9 [15.3%] to 1 [1.7%], p=0.031). A trend toward significance was observed in abnormal urine proteinuria/creatinine ratio (from 22 [37%] to 8 [13.6%], p=0.057). Conclusions. Our results corroborate the high frequency of complete or partial renal recovery in patients receiving TDF-containing regimens who discontinued therapy owing to nephrotoxicity.
Original languageEnglish
Article number4380845
JournalBioMed Research International
Volume2016
DOIs
Publication statusPublished - 1 Jan 2016

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