Volume 44, Issue 14 pp. E447-E454
Original Article

Interferon lambda 4 polymorphism affects on outcome of telaprevir, pegylated interferon and ribavirin combination therapy for chronic hepatitis C

Yuko Nagaoki

Yuko Nagaoki

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Michio Imamura

Michio Imamura

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Yoshiiku Kawakami

Yoshiiku Kawakami

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Hiromi Kan

Hiromi Kan

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Hatsue Fujino

Hatsue Fujino

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Takayuki Fukuhara

Takayuki Fukuhara

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Tomoki Kobayashi

Tomoki Kobayashi

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Atsushi Ono

Atsushi Ono

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Takashi Nakahara

Takashi Nakahara

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Noriaki Naeshiro

Noriaki Naeshiro

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Ayako Urabe

Ayako Urabe

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Satoe Yokoyama

Satoe Yokoyama

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Daisuke Miyaki

Daisuke Miyaki

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Eisuke Murakami

Eisuke Murakami

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Tomokazu Kawaoka

Tomokazu Kawaoka

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Masataka Tsuge

Masataka Tsuge

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Akira Hiramatsu

Akira Hiramatsu

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Hiroshi Aikata

Hiroshi Aikata

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Shoichi Takahashi

Shoichi Takahashi

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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C. Nelson Hayes

C. Nelson Hayes

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

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Hidenori Ochi

Hidenori Ochi

Laboratory for Digestive Diseases, Center for Genomic Medicine, The Institute of Physical and Chemical Research (RIKEN), Hiroshima, Japan

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Kazuaki Chayama

Corresponding Author

Kazuaki Chayama

Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan

Laboratory for Digestive Diseases, Center for Genomic Medicine, The Institute of Physical and Chemical Research (RIKEN), Hiroshima, Japan

Correspondence: Professor Kazuaki Chayama, Department of Gastroenterology and Metabolism, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan. Email: [email protected]Search for more papers by this author
Hiroshima Liver Study Group

Hiroshima Liver Study Group

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First published: 02 April 2014
Citations: 13
Funding: This work was supported by Grants-in-Aid for scientific research and development from the Ministry of Health, Labor and Welfare and Ministry of Education Culture Sports Science and Technology, Government of Japan. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. No additional external funding was received for this study.
Conflict of interest: The authors have declared that no conflicts of interest exist.

Abstract

Aim

The predictive value of the recently identified interferon-λ (IFNL)4 polymorphism on the outcome of telaprevir (TVR), pegylated interferon (PEG IFN) plus ribavirin (RBV) combination therapy for chronic hepatitis C is unknown.

Methods

We assessed predictive factors for sustained virological response (SVR) for TVR, PEG IFN plus RBV combination therapy in 283 genotype 1 chronic hepatitis C patients. IFNL4 polymorphism ss469415590 was analyzed by Invader assay.

Results

SVR rates for patients with IFNL4 TT/TT genotype were significantly higher than for those with the IFNL4 TT/ΔG or ΔG/ΔG genotypes (93% and 59%, respectively, P < 0.0001). In a multivariate regression analysis, prior treatment history (treatment-naïve patients or patients who relapsed during prior treatment) (odds ratio [OR], 2.385; P = 0.028), rapid virological response (OR, 6.800; P < 0.0001) and ss469415590 TT/TT genotype (OR, 8.064; P < 0.0001) were identified as significant independent predictors for SVR. In patients with IFNL4 TT/ΔG or ΔG/ΔG genotypes, SVR rates for non-RVR patients were significantly lower than RVR patients (22% and 75%, respectively, P < 0.0001).

Conclusion

Analysis of IFNL4 polymorphism is a valuable predictor in patients receiving TVR triple therapy.

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