PMID- 30187590 OWN - NLM STAT- MEDLINE DCOM- 20190923 LR - 20190923 IS - 1099-1557 (Electronic) IS - 1053-8569 (Linking) VI - 27 IP - 11 DP - 2018 Nov TI - Factors distinguishing important identified risks from important potential risks in orphan and nonorphan drugs: An analysis of safety specifications of Japan and European Union risk management plans. PG - 1231-1238 LID - 10.1002/pds.4646 [doi] AB - PURPOSE: The purposes of the study are to compare safety specifications between Japan and the European Union (EU) and to identify the factors affecting categorization of important identified or potential risks. METHODS: Safety specifications were collected from orphan and nonorphan drugs approved in Japan between 2014 and 2016, and in the EU as of October 2017. Outcome was defined dichotomously as listed as important identified risks or potential risks. A mixed-effects logistic regression was performed to estimate odds ratios of being listed as important identified risks. RESULTS: This study included 20 orphan and 33 nonorphan drugs. The number of safety specifications per drug and the distribution of risk categories were significantly different between Japan and the EU regardless of orphan status. In orphan drugs, the occurrence of serious adverse events (AEs) during clinical trials for new drug applications was associated with a higher probability of being listed as important identified risks in Japan, while AE rate (%) was positively associated with being listed as important identified risks in the EU. For nonorphan drugs in Japan, AE occurring at a high rate, adverse drug reactions (ADRs) listed as important identified risks in EU risk management plans, and clinically significant ADRs known in similar drugs were likely to be listed as important identified risks, whereas a >/=1.4 risk ratio was associated with a higher probability of being listed as important identified risks in the EU. CONCLUSIONS: Factors affecting risk categories were different between Japan and the EU, which might contribute to the difference in safety specifications between these 2 regions. CI - (c) 2018 John Wiley & Sons, Ltd. FAU - Hirota, Saeko AU - Hirota S AUID- ORCID: 0000-0003-0266-118X AD - Division of Biostatistics, Tohoku University Graduate School of Medicine, Sendai, Japan. FAU - Yamaguchi, Takuhiro AU - Yamaguchi T AD - Division of Biostatistics, Tohoku University Graduate School of Medicine, Sendai, Japan. LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180905 PL - England TA - Pharmacoepidemiol Drug Saf JT - Pharmacoepidemiology and drug safety JID - 9208369 SB - IM MH - Adverse Drug Reaction Reporting Systems/statistics & numerical data MH - Drug Labeling/legislation & jurisprudence/*standards MH - Drug-Related Side Effects and Adverse Reactions/epidemiology/etiology/*prevention & control MH - European Union/*organization & administration MH - Humans MH - Japan MH - Orphan Drug Production/*legislation & jurisprudence MH - Risk Assessment/methods MH - Risk Management/legislation & jurisprudence/*methods OTO - NOTNLM OT - pharmacoepidemiology OT - pharmacovigilance OT - rare diseases OT - risk management plan OT - safety specification EDAT- 2018/09/07 06:00 MHDA- 2019/09/24 06:00 CRDT- 2018/09/07 06:00 PHST- 2018/04/18 00:00 [received] PHST- 2018/07/26 00:00 [revised] PHST- 2018/08/07 00:00 [accepted] PHST- 2018/09/07 06:00 [pubmed] PHST- 2019/09/24 06:00 [medline] PHST- 2018/09/07 06:00 [entrez] AID - 10.1002/pds.4646 [doi] PST - ppublish SO - Pharmacoepidemiol Drug Saf. 2018 Nov;27(11):1231-1238. doi: 10.1002/pds.4646. Epub 2018 Sep 5.