Brief Report: Kidney Dysfunction Does Not Contribute Significantly to Antiretroviral Therapy Modification in Treatment-Naive PLWH Receiving Initial ART

Ellen F. Eaton, Ashutosh Tamhane, Thibaut Davy-Mendez, Richard D. Moore, W. Christopher Mathews, Michael S. Saag, Michael J. Mugavero, Christina M. Wyatt, Orlando M. Gutierrez

Research output: Contribution to journalArticle

Abstract

Background:Antiretroviral therapy (ART) durability, time to modification or cessation, has declined. The study objective was to determine whether kidney dysfunction is contributing to reduced durability.Methods:This retrospective follow-up study of CNICS evaluated treatment-naive PLWH initiating ART between 2007 and 2014. Regimen modification was defined as cessation/modification of any part of the 3-drug ART regimen. We evaluated the role of kidney dysfunction in initial regimen modification as both a mediator and effect measure modifier. Associations of the variables with the ART modification were examined using univariable and multivariable Cox proportional hazard models.Results:Of 4515 PLWH included in the analysis, 1967 modified their ART. Of those receiving TDF-based ART (n = 3888), 1580 (41%) modified their regimen compared with 387 (62%) receiving other regimens. Overall, the median eGFR decreased by 5 mL/min/1.73 m2 (quartiles: first = -16, third = 0) from baseline to follow-up. Of the 128 patients with low baseline eGFR (<60 mL/min/1.73 m2), the final eGFR remained low in 73% while it increased to above 60 mL/min/1.73 m2 in 27%. Of the 4387 with normal baseline eGFR, only 135 (3%) had a final eGFR <60 mL/min/1.73 m2. Those with low eGFR at the baseline and/or final visits were more likely to modify ART than others (hazards ratio = 1.75, 95% confidence interval: 1.39 to 2.19, P < 0.001). Relative to other regimens, TDF-based ART was less likely to be modified when accounting for numerous clinical and demographic traits.Conclusions:For patients in our study initiated on ART, including TDF-based ART, in the last decade, kidney dysfunction is not a major factor leading to regimen modification.

Original languageEnglish (US)
Pages (from-to)E6-E9
JournalJournal of acquired immune deficiency syndromes
Volume81
Issue number1
DOIs
StatePublished - May 1 2019

Keywords

  • HIV
  • antiretroviral therapy
  • durability
  • kidney dysfunction
  • tenofovir

ASJC Scopus subject areas

  • Infectious Diseases
  • Pharmacology (medical)

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