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Ann Gastroenterol. 2018 Nov-Dec;31(6):712-721. doi: 10.20524/aog.2018.0300. Epub 2018 Jul 26.
A genotype-specific baseline score predicts post-treatment response to peginterferon alfa-2a in hepatitis B e antigen-negative chronic hepatitis B.
Lampertico P1, Messinger D2, Cornberg M3, Brunetto M4, Petersen J5, Kennedy P6, Asselah T7, Rothe V2, Caputo A8, Bakalos G9, Pavlovic V10, Papatheodoridis GV11.
Author information
1
CRC "A. M. e A. Migliavacca", Division of Gastroenterology and Hepatology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milan, Italy (Pietro Lampertico).
2
PROMETRIS GmbH, Mannheim, Germany (Diethelm Messinger, Vivien Rothe).
3
Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany (Markus Cornberg).
4
Hepatology Unit and Liver Physiopathology Laboratory, University Hospital of Pisa and Internal Medicine, Clinical and Experimental Medicine Department, University of Pisa, Pisa, Italy (Maurizia Brunetto).
5
IFI Institute for Interdisciplinary Medicine, Asklepios Klinik St. Georg, University of Hamburg, Germany (Jörg Petersen).
6
Centre for Digestive Diseases, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK (Patrick Kennedy).
7
Service d'Hépatologie & INSERM UMR1149, Centre de Recherche sur l'inflammation, Labex INFLAMEX, University of Paris Diderot, Hôpital Beaujon, Clichy, France (Tarik Asselah).
8
Roche S.p.A., Monza, Italy (Antonietta Caputo).
9
F. Hoffmann-La Roche Ltd., Basel, Switzerland (Georgios Bakalos).
10
Roche Products Ltd., Welwyn Garden City, UK (Vedran Pavlovic).
11
Department of Gastroenterology, Medical School of National & Kapodistrian University of Athens, Laiko General Hospital, Athens, Greece (George V. Papatheodoridis).
Abstract
Background:
Peginterferon alfa-2a induces durable responses in some hepatitis B e antigen-negative patients, but robust pretreatment predictors are not available to identify likely responders. In this study we aimed to develop genotype-specific baseline scoring systems to predict response.
Methods:
Data from 323 hepatitis B e antigen-negative peginterferon alfa-2a recipients from three studies were analyzed. Scoring systems were developed using generalized additive models and multiple logistic regression analysis. Response was defined as hepatitis B virus DNA <2000 IU/mL alone (virological response) or in combination with alanine aminotransferase normalization (combined response) 48 weeks post-treatment.
Results:
Points were assigned to genotype B/C patients for: age, alanine aminotransferase ratio, genotype B or C, and hepatitis B surface antigen level; and to genotype D patients for age, hepatitis B surface antigen level and hepatitis B virus DNA level. Higher total scores (range 0-5 for B/C; 0-3 for D) indicated a higher likelihood of response. Among genotype B/C patients with scores of 0-1, 2 and ≥3, respectively, virological response rates were 16.7%, 25.8% and 70.2%, and combined response rates were 12.5%, 21.0% and 57.4%. Among genotype D patients with scores of 0-1, 2 and 3, respectively, virological response rates were 10.1%, 28.0% and 50.0%, and combined response rates were 7.8%, 28.0% and 33.3%.
Conclusion:
Genotype-specific baseline scoring systems can identify hepatitis B e antigen-negative patients with low or high likelihood of achieving sustained responses to peginterferon alfa-2a.
KEYWORDS:
HBeAg; HBsAg; Predictors; treatment; virological response
PMID:
30386122
PMCID:
PMC6191871
DOI:
10.20524/aog.2018.0300
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