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  • Title: Vitamin D in addition to peg-interferon-alpha/ribavirin in chronic hepatitis C virus infection: ANRS-HC25-VITAVIC study.
    Author: Terrier B, Lapidus N, Pol S, Serfaty L, Ratziu V, Asselah T, Thibault V, Souberbielle JC, Carrat F, Cacoub P.
    Journal: World J Gastroenterol; 2015 May 14; 21(18):5647-53. PubMed ID: 25987791.
    Abstract:
    AIM: To investigate if correction of hypovitaminosis D before initiation of Peg-interferon-alpha/ribavirin (PegIFN/RBV) therapy could improve the efficacy of PegIFN/RBV in previously null-responder patients with chronic genotype 1 or 4 hepatitis C virus (HCV) infection. METHODS: Genotype 1 or 4 HCV-infected patients with null response to previous PegIFN/RBV treatment and with hypovitaminosis D (< 30 ng/mL) prospectively received cholecalciferol 100000 IU per week for 4 wk [from week -4 (W-4) to W0], followed by 100000 IU per month in combination with PegIFN/RBV for 12 mo (from W0 to W48). The primary outcome was the rate of early virological response defined by an HCV RNA < 12 IU/mL after 12 wk PegIFN/RBV treatment. RESULTS: A total of 32 patients were included, 19 (59%) and 13 (41%) patients were HCV genotype 1 and 4, respectively. The median baseline vitamin D level was 15 ng/mL (range: 7-28). In modified intention-to-treat analysis, 29 patients who received at least one dose of PegIFN/RBV were included in the analysis. All patients except one normalized their vitamin D serum levels. The rate of early virologic response was 0/29 (0%). The rate of HCV RNA < 12 IU/mL after 24 wk of PegIFN/RBV was 1/27 (4%). The safety profile was favorable. CONCLUSION: Addition of vitamin D to PegIFN/RBV does not improve the rate of early virologic response in previously null-responders with chronic genotype 1 or 4 HCV infection.
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