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eGFR but not SLC polymorphisms influences anemia in HIV-HCV co-infected patients treated with boceprevir- or telaprevir-based therapy (ANRS HC26 and HC27 Study).

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Kheloufi F, Bellissant E, Cotte L, Poizot-Martin I, Quaranta S, Garraffo R, Barrail-Tran A, Renault A, Fournier I, Lacarelle B, Bourlière M, Molina JM, Solas C, ,


Kheloufi F, Bellissant E, Cotte L, Poizot-Martin I, Quaranta S, Garraffo R, Barrail-Tran A, Renault A, Fournier I, Lacarelle B, Bourlière M, Molina JM, Solas C, , (click to view)

Kheloufi F, Bellissant E, Cotte L, Poizot-Martin I, Quaranta S, Garraffo R, Barrail-Tran A, Renault A, Fournier I, Lacarelle B, Bourlière M, Molina JM, Solas C, ,

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AIDS (London, England) 2016 5 5()

Abstract
OBJECTIVES
Ribavirin (RBV) induced anemia may be influenced by host genetic factors affecting RBV transport (SLC) or metabolism (ITPA) as already reported. We investigated the influence of single nucleotide polymorphisms (SNPs) on SLC genes on anemia, RBV trough concentration (Ctrough) and response in HIV-HCV co-infected patients receiving triple therapy with boceprevir (BOC) or telaprevir (TVR).

METHODS
Patients from the ANRS HC26/HC27 studies were genotyped for SLC28A3 SNPs (rs10868138 and rs56350726) and SL29A1 SNPs (rs760370). Hemoglobin (Hb) decline was collected at baseline (D0), W4 and W8 and RBV Ctrough was measured at W4 and W8 by high performance liquid chromatography. A multivariate analysis including SLC SNPs, estimated glomerular filtration rate (eGFR), ITPA deficiency and RBV Ctrough was performed in order to determine predictive factors of anemia and response.

RESULTS
SLC genotyping was performed in 130 patients. Neither SLC28A3 nor SLC29A1 SNPs were associated with Hb decline both at W4 and W8. No association was found between SLC polymorphisms and RBV Ctrough. Independent predictive factors of Hb decline at W4 were D0 Hb, ITPA deficiency and W4 RBV Ctrough in the multivariate analysis (p < 0.05). Only D0 Hb, W4 RBV Ctrough and eGFRD0-W8 were predictive of anemia at W8 (p < 0.05). Response was not influenced by SLC SNPs. CONCLUSION
eGFR but not SLC polymorphisms influences anemia in HIV-HCV co-infected patients receiving BOC- or TVR-based therapy. RBV is still a cornerstone of hepatitis C treatment, thus renal function and RBV Ctrough should be monitored in patients receiving RBV regimen combined to first generation DAA.

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