However, retreatment with SMV-based therapy, with particular caut

However, retreatment with SMV-based therapy, with particular caution regarding adverse reactions, is an option

in patients previously administered TVR-based therapy who were unable to tolerate adequate dosages of one or more agents due to adverse reactions. When previously treated patients undergo retreatment with a combination including RBV, if RBV was not included in the previous IFN or Peg-IFN monotherapy regimen, the response to the earlier therapy is not a strong predictive factor for the efficacy of further treatment, so in general follow the treatment protocol for treatment-naïve patients. If the HCV RNA decrease at week 12 of the previous treatment is unknown, but it is clear that HCV RNA did not become negative, see more follow the retreatment protocol for null responders. Recommendations The response to previous therapy is the best indicator for the response to retreatment in patients who were non-responders to previous IFN/Peg-IFN + RBV combination therapy. The relationship between IL28B SNPs and therapeutic efficacy is unclear at present. Retreatment with RBV combination therapy PF-01367338 datasheet in patients previously administered IFN or Peg-IFN monotherapy should in general follow the treatment protocol for treatment-naïve

cases. If the HCV RNA decrease at week 12 of the previous treatment is unknown, but it is clear that HCV RNA did not become negative, follow MCE the null response retreatment protocol. There is presently no evidence available concerning the therapeutic efficacy of SMV + Peg-IFN + RBV triple therapy

in non-responders to previous TVR + Peg-IFN + RBV triple therapy. SMV + Peg-IFN + RBV triple therapy should be commenced promptly if treatment is likely to be tolerated. In particular, relapsers and partial responders are favorable indications. As for null responders, in the overseas clinical trial (ASPIRE), SVR rates of approximately 50% were achieved when SMV + Peg-IFN + RBV combination therapy administered to null responders to previous treatment. Introduction of this regimen is therefore recommended to null responders, although it may be an option to await the advent of newer agents with fewer adverse reactions if problems with tolerability are anticipated. TVR + Peg-IFN + RBV triple therapy is another option, although it is recommended that TVR therapy should be commenced at a reduced dosage of 1500 mg/day as in treatment-naïve cases, and great caution is still required in its use. The risk of hepatocellular carcinogenesis is high in elderly patients, and when viral eradication cannot be achieved protective therapies (SNMC, UDCA) should be administered with the aims of biochemical improvement and inhibiting hepatocellular carcinogenesis.[1] Long-term low dose Peg-IFN (IFN) therapy is another option.

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