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Effectiveness and Safety of Tenofovir Disoproxil Fumarate in Chronic Hepatitis B: A 3-Year Prospective Field Practice Study in Germany

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Abstract

Background and Aims

Multiple clinical trials have demonstrated the efficacy and safety of tenofovir disoproxil fumarate (TDF) in chronic hepatitis B (CHB). However, long-term efficacy and safety data for TDF in real-life clinical practice are limited.

Methods

Prospective German field practice study in CHB-mono-infected patients. Patients were TDF-naïve but could have been treated previously with other HBV antivirals.

Results

Efficacy analysis included 400 patients; 301 (75 %) completed 36 months of TDF treatment. Both treatment-naïve and treatment-experienced patients showed a rapid decline in HBV DNA within 3 months of TDF initiation. After 36 months, HBV DNA < 69 IU/mL was achieved by 91 % of treatment-naïve patients (90 and 92 % in hepatitis B “e” antigen [HBeAg]-positive and [HBeAg]-negative, respectively) and 96 % of treatment-experienced patients (93 and 97 %, respectively). Three patients experienced virologic breakthrough, all with reported non-compliance. Overall, 5.7 % HBeAg-positive and 2.2 % HBeAg-negative patients lost hepatitis B surface antigen. Safety data were consistent with the known TDF safety profile; the most commonly reported adverse events possibly related to TDF were fatigue (2.0 %) and headache (2.0 %). Few patients (1.3 %) experienced renal-related adverse reactions. Creatinine clearance remained relatively stable over time; patients responded favorably where TDF was dose adjusted per label for decreased creatinine clearance.

Conclusions

TDF showed a favorable tolerability profile and induced rapid and sustained suppression of HBV DNA in patients with CHB treated for up to 3 years in routine clinical practice, irrespective of treatment history. Efficacy and safety in this heterogeneous patient population were consistent with data from clinical trials.

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Funding

This study was supported by Gilead Sciences GmbH.

Author contributions

All authors were involved in data acquisition and analysis and interpretation of the data, contributed to drafting the manuscript with regards to important intellectual content and approved the manuscript prior to submission. Medical writing assistance was provided by Carol Lovegrove and Liesje Quine, Elements Communications Ltd, Westerham, UK and Jane Anderson, Chapel Hill, North Carolina, USA and funded by Gilead Sciences.

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Correspondence to Jörg Petersen.

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Conflicts of interest

JP is an investigator and speaker/consultant for Bristol-Myers Squibb, Novartis, Roche, AbbVie and a speaker/consultant for Abbott, Boehringer, Gilead, and GlaxoSmithKline. CE is a speaker/consultant for Bristol-Myers Squibb, Gilead, Janssen, Merck Sharp & Dohme and Roche. SM is a speaker/consultant for Gilead, Bristol-Myers Squibb, Roche and Merck Sharp & Dohme. DH is on the Speakers Bureau for Gilead, Janssen, Merck Sharp & Dohme, Roche, and has served on Advisory Boards for Gilead, Janssen and Roche. KB is a speaker/consultant for Bristol-Myers-Squibb, Gilead, Roche, Merck Sharp & Dohme, Novartis, Janssen-Cilag, and Gilead. SR and TW are employees of Gilead. JS, HH, CJ, and CT, have no conflicts of interest to declare.

Research involving human participants and/or animals

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Petersen, J., Heyne, R., Mauss, S. et al. Effectiveness and Safety of Tenofovir Disoproxil Fumarate in Chronic Hepatitis B: A 3-Year Prospective Field Practice Study in Germany. Dig Dis Sci 61, 3061–3071 (2016). https://doi.org/10.1007/s10620-015-3960-x

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  • DOI: https://doi.org/10.1007/s10620-015-3960-x

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