Hepatitis C virus cure does not impact kidney function decline in HIV co-infected patients.
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ABSTRACT: OBJECTIVE:To examine the impact of sustained virologic response (SVR) and illicit (injection and noninjection) drug use on kidney function among hepatitis C virus (HCV) and HIV co-infected individuals. DESIGN:Longitudinal observational cohort study of HCV-HIV co-infected patients. METHODS:Data from 1631 patients enrolled in the Canadian Co-Infection Cohort between 2003 and 2016 were analyzed. Patients who achieved SVR were matched 1?:?2 with chronically infected patients using time-dependent propensity scores. Linear regression with generalized estimating equations was used to model differences in estimated glomerular filtration rates (eGFR) between chronic HCV-infected patients and those achieving SVR. The relationship between illicit drug use and eGFR was explored in patients who achieved SVR. RESULTS:We identified 384 co-infected patients who achieved SVR (53% treated with interferon-free antiviral regimens) and 768 propensity-score matched patients with chronic HCV infection. Most patients were men (78%) and white (87%), with a median age of 51 years (interquartile range: 45-56). During 1767 person-years of follow-up, 4041 eGFR measurements were available for analysis. Annual rates of decline in eGFR were similar between patients with SVR [-1.32?(ml/min per 1.73?m)/year, 95% confidence interval (CI) -1.75 to -0.90] and chronic infection [-1.19?(ml/min per 1.73?m) per year, 95% CI -1.55 to -0.84]. Among SVR patients, recent injection cocaine use was associated with rapid eGFR decline [-2.16?(ml/min per 1.73 m)/year, 95% CI -4.17 to -0.16]. CONCLUSION:SVR did not reduce the rate of kidney function decline among HCV-HIV co-infected patients. Increased risk of chronic kidney disease in co-infection may not be related to persistent HCV replication but to ongoing injection cocaine use.
SUBMITTER: Rossi C
PROVIDER: S-EPMC5895129 | biostudies-literature | 2018 Mar
REPOSITORIES: biostudies-literature
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