(HealthDay)—Sofosbuvir-based treatment appears to guarantee renal safety for patients with chronic hepatitis C virus over one year of follow-up, according to a study published online May 7 in the Journal of Clinical Pharmacy and Therapeutics.

Thalia Medeiros, from the Universidade Federal Fluminense in Niterói, Brazil, and colleagues evaluated renal biomarkers among 94 chronic hepatitis C patients treated with sofosbuvir therapy. Urine samples were collected at the end of therapy, after 12 weeks sustained virological response, and one year post-treatment.

The researchers found that 98.9 percent of patients reached sustained virological response. In patients with glomerular filtration rate (GFR) ≥45 mL/min/1.73 m² there was significant improvement in renal biomarkers, as indicated by a progressive increase in mean GFR values until one year. There was no evidence of tubular dysfunction. There was no change in renal biomarkers among patients with baseline GFR <45 mL/min/1.73 m².

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