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  • Title: [HCV RNA clearance after treatment with interferon-alpha in chronic hemodialysis patients with or without coinfection by HGV/HGBV-C].
    Author: Rostaing L, Izopet J, Moussion F, Alric L, Verdier D, That HT, Duffaut M, Durand D, Puel J, Suc JM.
    Journal: Nephrologie; 1997; 18(7):281-6. PubMed ID: 9496568.
    Abstract:
    Patients on maintenance hemodialysis are frequently infected with hepatitis C virus (HCV). The long-term effect of alpha interferon therapy has not yet been assessed, or the influence of co-infection with the newly discovered hepatitis G/hepatitis GB virus-C (HGV/HGBV-C) upon therapy outcome. Eleven anti-HCV and HCV RNA-positive hemodialysis patients, 3 of whom had HGV/HGBV-C infection were given 3 mega-units of alpha 2b recombinant interferon subcutaneously 3 times weekly for six months. The mean follow-up after cessation of therapy was 24 +/- 8 months (range: 18-30 months). Sustained serum HCV RNA clearance, as assessed by PCR analysis, occurred in 5/11 patients (45.5%). Two had received a cadaveric kidney transplant at 16 and 18 months post-treatment and were treated by immunosuppressive therapy; HCV RNA remained undetectable in both serum and a liver biopsy. HCV was eradicated in 3 of the 6 patients infected with HCV genotype 1b, which is less sensitive to alpha-interferon than other HCV genotypes. Among the 3 patients infected with both HCV and HGV/HGBV-C, alpha-interferon cleared the HCV RNA from one patient, but not the HGV/HGBV-C RNA. In view of the high rate of HCV eradication after alpha-interferon therapy and its fair tolerance, we suggest that HCV RNA-positive dialysis patients should be treated before transplantation, regardless of their aminotransferase levels or liver histological score, since alpha interferon therapy after renal allografting is associated with an unacceptable rate of renal failure. Our preliminary data indicate that HGV/HGBV-C does not interfere with sustained HCV RNA clearance.
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