Hepatitis C Virus Eradication in Kidney Transplant Recipients: A Single-Center Experience in Portugal.

Introduction. Hepatitis C (HCV) is a major cause of liver impairment post-kidney transplantation (KT). Anti-HCV direct-acting antivirals (DAA) made viral eradication possible. Methods. We performed a retrospective review of KT patients (n = 23) who received DAA at our hospital. Sustained viral response (SVR) was defined as absence of viral detection 12 weeks after cessation of therapy. Results. From 1985 to September 2017, 1440 patients underwent transplantation at Hospital Santa Cruz. From a total of 32 HCV RNA+KT recipients on follow-up, we describe the first 23 patients treated with DAA. They were 56.7 +/- 9.1 years old; 22 were white, 52.2% were males, they underwent transplantation 18.8 +/- 9.0 years ago, and 13 had genotype 1B, 21 were naive, and 9 had stages F3/F4. All but 2 patients, treated with grazoprevir/elbasvir, received sofosbuvir (18 with ledispasvir, 2 with daclastavir, and 4 with simultaneous ribavirin). Pretreatment, intra-treatment, and post-treatment creatinine clearances were 61.4, 60.6, and 60.7 mL/min/1.73 m(2), respectively (not significant [NS]). Cyclosporine A was the basis of immunosuppression in the majority [(n = 14); pretreatment and intratreatment levels were 79.5 +/- 23.0 and 91.8 +/- 26.0 ng/mL, respectively (P = .08)]; tacrolimus (n = 8) and mammalian target of rapamycin (mTOR) levels (n = 5) were also similar. One patient interrupted ribavirin after 7 weeks due to anemia; all other patients completed the treatment course without major side effects. Only 3 patients presented positive viral RNA at the fourth week of treatment and SVR was achieved in 100% of the patients 12 weeks after treatment. Conclusions. DAA therapy was well tolerated and effective in 100% of our treated patients, without significant impact on the renal function or on the immunosuppression.