Abstract
Purpose
Advanced liver fibrosis is a negative predictor of virologic response in genotype 1 chronic hepatitis C (CHC) patients. Biopsy, however, is invasive, costly, and carries some risk of complications.
Methods
Using data from the prospective, international cohort study PROPHESYS, we assessed two alternative noninvasive measures of fibrosis, the FIB-4 and AST-to-platelet ratio index (APRI), to predict virologic response in CHC patients.
Results
CHC genotype 1, monoinfected, treatment-naive patients prescribed peginterferon alfa-2a (40 KD)/ribavirin in accordance with country-specific legal and regulatory requirements and who had baseline METAVIR, FIB-4, and APRI scores (N = 1,592) were included in this analysis. Patients were stratified according to the baseline METAVIR, FIB-4, or APRI score to assess virologic response [hepatitis C virus (HCV) RNA <50 IU/mL] by week 4 of treatment (rapid virologic response) and 24 weeks after untreated follow-up ]sustained virologic response (SVR)]. Baseline predictors of SVR were explored by multiple logistic regression, and the strength of the association between each fibrosis measure and SVR was evaluated. Both FIB-4 and APRI scores increased with increasing levels of biopsy-assessed fibrosis. The association between FIB-4 and SVR (p < 0.1 × 10−30) was stronger than that between METAVIR (p = 3.86 × 10−13) or APRI (p = 5.48 × 10−6) and SVR. Baseline factors significantly associated with SVR included male gender, lower HCV RNA, lower FIB-4 score, no steatosis, and higher alanine aminotransferase ratio.
Conclusion
The FIB-4 index provides a valuable, noninvasive measure of fibrosis and can be used to predict virologic response in patients treated with peginterferon alfa-2a (40 KD)/ribavirin.
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Acknowledgements
This study was supported by F. Hoffmann-La Roche Ltd., Basel, Switzerland. Support for third-party writing assistance for this manuscript was provided by F. Hoffmann-La Roche Ltd., Basel, Switzerland.
Compliance with Ethical Requirements
All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008. Informed consent was obtained from all patients for being included in the study.
Conflicts of interest
Peter Ferenci—Global Advisory Board: Roche/Genentech, Merck, Janssen, Boehringer-Ingelheim and Rottapharm-Madaus; Advisor: GSK, Achilleon, Idenix; Speaker’s Bureau: Roche, MSD Austria, Janssen Austria, BMS Austria; Unrestricted Research Grant: Roche Austria and MSD Austria. Kimberly L. Beavers—Anadys, Bristol-Myers Squibb, Genentech, Inhibitex, Johnson and Johnson, Merck, Pharmasset, Roche and Vertex; Speakers Bureau: Genentech, Merck, Vertex. Michael Gschwantler—Speaker: Roche Austria, MSD Austria, Bristol-Myers Squibb and Janssen Austria. Dominique Larrey—Consultant for Roche Anti-viral Agents. Istvan Tornai—Advisory Board Member: Roche, MSD and Janssen-Cilag in Hungary. Mojca Maticic—Speaker and/or Advisor: Bayer Slovenia, Berlin-Chemie Slovenia, GSK Slovenia, Janssen Slovenia, MSD Slovenia, Roche Slovenia, Schering-Plough Slovenia. Diethelm Messinger—Employee of IST GmbH. IST GmbH has a contract with Roche to provide statistical support. Fernando Tatsch—Employee of F. Hoffmann-La Roche and a shareholder in F. Hoffmann-La Roche. Rodrigo Aires, Manuela Curescu, Paulo R. Abrão Ferreira, Massimo Puoti, János Schuller, Stefan Ion, Anna Tusnádi, and Andrzej Horban declare that they have no conflicts of interest.
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Ferenci, P., Aires, R., Beavers, K.L. et al. Predictive value of FIB-4 and APRI versus METAVIR on sustained virologic response in genotype 1 hepatitis C patients. Hepatol Int 8, 83–93 (2014). https://doi.org/10.1007/s12072-013-9484-6
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DOI: https://doi.org/10.1007/s12072-013-9484-6