PMID- 23246359 OWN - NLM STAT- MEDLINE DCOM- 20131029 LR - 20231213 IS - 1873-5967 (Electronic) IS - 1386-6532 (Linking) VI - 56 IP - 4 DP - 2013 Apr TI - Profound week 4 interferon responsiveness is mandatory for hepatitis C genotype 1 patients with unfavorable IL-28B genotype. PG - 293-8 LID - S1386-6532(12)00435-0 [pii] LID - 10.1016/j.jcv.2012.11.015 [doi] AB - BACKGROUND: Viral kinetics and host interleukin 28B (IL-28B) genotype determine treatment outcome in hepatitis C virus genotype 1 (HCV-1) infection. OBJECTIVES: We aimed to explore the interplay between interferon responsiveness at treatment week 4 and IL28B genotype in the achievement of a sustained virological response (SVR; undetectable HCV RNA 24-weeks after end-of-treatment). STUDY DESIGNS: Rs8099917 genotypes were determined in 528 HCV-1 patients with peginterferon/ribavirin. Interferon responsiveness were evaluated by the degree of week 4 viral reduction: <1 log(10) IU/mL, 1-2 logs(10) IU/mL, 2-3 logs(10) IU/mL, 3-4 logs(10) IU/mL and >/=4 logs(10) IU/mL reduction and/or undetectable HCV RNA, respectively. RESULTS: The SVR rate was significantly higher in patients with great interferon responsiveness at week 4. A great interferon responsiveness was associated with younger age (P < 0.0001), lower body mass index (P = 0.0056), lower aspartate aminotransferase levels (P = 0.0009), higher hemogloblin concentration (P = 0.0033), higher platelet counts (P < 0.0001), male gender (P < 0.0001) and rs809997 TT-genotype (P < 0.0001). Comparing to non-TT genotype patients, TT genotype patients had a significantly higher SVR rate with moderate viral reduction (1-3 logs(10) IU/mL) at week 4 (58.9% vs. 18.2%, P < 0.001), and the SVR rate did not differ between TT/non-TT patients on the extreme ends (<1 or >3 log(10) IU/mL reduction) of week 4 interferon responsiveness. For non-TT genotype carriers who were with <3 logs(10) reduction, none (0/15) could have a complete early virological response and only 10.9% (7/64) of the patients had an SVR. CONCLUSIONS: More profound interferon responsiveness is mandatory for HCV-1 patients with unfavorable IL-28B genotype. CI - Copyright (c) 2012 Elsevier B.V. All rights reserved. FAU - Huang, Chung-Feng AU - Huang CF AD - Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. FAU - Yu, Ming-Lung AU - Yu ML FAU - Kao, Jia-Horng AU - Kao JH FAU - Tseng, Tai-Chung AU - Tseng TC FAU - Yeh, Ming-Lun AU - Yeh ML FAU - Huang, Jee-Fu AU - Huang JF FAU - Dai, Chia-Yen AU - Dai CY FAU - Lin, Zu-Yau AU - Lin ZY FAU - Chen, Shinn-Cherng AU - Chen SC FAU - Wang, Liang-Yen AU - Wang LY FAU - Juo, Suh-Hang Hank AU - Juo SH FAU - Chuang, Wan-Long AU - Chuang WL FAU - Liu, Chen-Hua AU - Liu CH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Clin Virol JT - Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology JID - 9815671 RN - 0 (Antiviral Agents) RN - 0 (Hemoglobins) RN - 0 (interferon-lambda, human) RN - 0 (Interferon alpha-2) RN - 0 (Interferon-alpha) RN - 0 (Interleukins) RN - 0 (RNA, Viral) RN - 0 (Recombinant Proteins) RN - 3WJQ0SDW1A (Polyethylene Glycols) RN - 49717AWG6K (Ribavirin) RN - 9008-11-1 (Interferons) RN - EC 2.6.1.1 (Aspartate Aminotransferases) RN - G8RGG88B68 (peginterferon alfa-2b) RN - Q46947FE7K (peginterferon alfa-2a) SB - IM CIN - J Clin Virol. 2013 Aug;57(4):381. PMID: 23688864 MH - Adult MH - Age Factors MH - Aged MH - Antiviral Agents/administration & dosage/*pharmacology MH - Aspartate Aminotransferases/analysis MH - Body Mass Index MH - Drug Therapy, Combination MH - Female MH - Genetic Testing MH - Genotype MH - Hemoglobins/analysis MH - Hepacivirus/*genetics/pathogenicity MH - Hepatitis C, Chronic/*drug therapy/virology MH - Heterozygote MH - Humans MH - Interferon alpha-2 MH - Interferon-alpha/administration & dosage/*pharmacology MH - Interferons MH - Interleukins/*genetics MH - Male MH - Middle Aged MH - Platelet Count MH - Polyethylene Glycols/administration & dosage/*pharmacology MH - RNA, Viral/genetics/metabolism MH - Recombinant Proteins/administration & dosage/pharmacology MH - Ribavirin/administration & dosage/pharmacology MH - Sex Factors MH - Time Factors MH - Treatment Outcome EDAT- 2012/12/19 06:00 MHDA- 2013/10/30 06:00 CRDT- 2012/12/19 06:00 PHST- 2012/08/17 00:00 [received] PHST- 2012/10/14 00:00 [revised] PHST- 2012/11/19 00:00 [accepted] PHST- 2012/12/19 06:00 [entrez] PHST- 2012/12/19 06:00 [pubmed] PHST- 2013/10/30 06:00 [medline] AID - S1386-6532(12)00435-0 [pii] AID - 10.1016/j.jcv.2012.11.015 [doi] PST - ppublish SO - J Clin Virol. 2013 Apr;56(4):293-8. doi: 10.1016/j.jcv.2012.11.015.