PMID- 29228519 OWN - NLM STAT- MEDLINE DCOM- 20190301 LR - 20220408 IS - 2005-6648 (Electronic) IS - 1226-3303 (Print) IS - 1226-3303 (Linking) VI - 33 IP - 1 DP - 2018 Jan TI - Large-scale surveillance study of the safety and effectiveness of entecavir in Korean patients with chronic hepatitis B. PG - 91-101 LID - 10.3904/kjim.2016.111 [doi] AB - BACKGROUND/AIMS: Entecavir (ETV) is effective and safe antiviral agent against hepatitis B virus (HBV) in clinical and real-world setting but, most studies were performed in single institute or have limitation in patient's number. A large-scale nation-wide real-world surveillance study was carried out to investigate safety, efficacy and clinical effectiveness of ETV in Korean patients with chronic hepatitis B (CHB). METHODS: Between 2006 and 2012, 3,444 patients were enrolled from 132 Korean institutions. For the safety assessment, investigators recorded the occurrence of observed and patient-reported adverse events (AEs), as well as laboratory abnormalities. Efficacy, which consisted of change in HBV DNA and alanine aminotransferase (ALT), was evaluated in patients who had received at least 16 weeks of ETV treatment. Overall clinical effectiveness, based on improvement of ALT, HBV DNA and patient's symptoms, was evaluated by physicians. RESULTS: Of the patients, 3,367 were evaluated for safety and 3,115 for efficacy and clinical effectiveness. Three hundred and eighty AEs were reported in 255 cases (7.57%), and 67 adverse drug reactions in 54 cases (1.6%). Serious AEs (SAE) were 19 events in nine cases (0.27%). Serious adverse drug reactions (SADR) were three events in two cases (0.06%), and unexpected SAE/SADR were three events in two cases (0.06%). Medical history and concomitant medications were factors inf luencing incidence rates of AEs. Overall clinical effectiveness rate was 96.53%, which was clinically assessed as marked improved or improved state. CONCLUSIONS: This study showed that ETV was well tolerated and clinically effective in Korean patients with CHB in a real-world nation-wide setting. FAU - Kim, Chang Wook AU - Kim CW AD - Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea. FAU - Kim, Chang Seop AU - Kim CS AD - Neane Clinic, Seoul, Korea. FAU - Kim, Hee Yeon AU - Kim HY AD - Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea. FAU - Lee, Chang Don AU - Lee CD AD - Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea. FAU - Yu, Kyungha AU - Yu K AD - Bristol-Myers Squibb, Seoul, Korea. FAU - Llamoso, Cyril AU - Llamoso C AD - Bristol-Myers Squibb, Wallingford, CT, USA. FAU - Lee, Heon Ju AU - Lee HJ AD - Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea. LA - eng PT - Journal Article PT - Multicenter Study DEP - 20171213 PL - Korea (South) TA - Korean J Intern Med JT - The Korean journal of internal medicine JID - 8712418 RN - 0 (Antiviral Agents) RN - 0 (DNA, Viral) RN - 0 (Hepatitis B e Antigens) RN - 5968Y6H45M (entecavir) RN - 5Z93L87A1R (Guanine) RN - EC 2.6.1.2 (Alanine Transaminase) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Alanine Transaminase/blood MH - Antiviral Agents/adverse effects/*therapeutic use MH - DNA, Viral/analysis MH - Female MH - Guanine/adverse effects/*analogs & derivatives/therapeutic use MH - Hepatitis B e Antigens MH - Hepatitis B virus/drug effects/genetics MH - Hepatitis B, Chronic/*drug therapy MH - Humans MH - Male MH - Middle Aged MH - Treatment Outcome MH - Young Adult PMC - PMC5768541 OTO - NOTNLM OT - Drug-related side effects and adverse reactions OT - Entecavir OT - Hepatitis B, chronic OT - Product surveillance, postmarketing COIS- This surveillance was sponsored by Bristol-Myers Squibb Korea. Kyungha Yu and Cyril Llamoso are employees of Bristol-Myers Squibb. Others are no conflict of interest relevant to this article. EDAT- 2017/12/12 06:00 MHDA- 2019/03/02 06:00 PMCR- 2018/01/01 CRDT- 2017/12/12 06:00 PHST- 2016/04/04 00:00 [received] PHST- 2016/09/03 00:00 [revised] PHST- 2016/10/15 00:00 [accepted] PHST- 2017/12/12 06:00 [pubmed] PHST- 2019/03/02 06:00 [medline] PHST- 2017/12/12 06:00 [entrez] PHST- 2018/01/01 00:00 [pmc-release] AID - kjim.2016.111 [pii] AID - kjim-2016-111 [pii] AID - 10.3904/kjim.2016.111 [doi] PST - ppublish SO - Korean J Intern Med. 2018 Jan;33(1):91-101. doi: 10.3904/kjim.2016.111. Epub 2017 Dec 13.