PMID- 33952819 OWN - NLM STAT- MEDLINE DCOM- 20211122 LR - 20211122 IS - 1347-5215 (Electronic) IS - 0918-6158 (Linking) VI - 44 IP - 5 DP - 2021 TI - Disproportionality Analysis of Safety Signals for a Wide Variety of Opioid-Related Adverse Events in Elderly Patients Using the Japanese Adverse Drug Event Report (JADER) Database. PG - 627-634 LID - 10.1248/bpb.b20-00904 [doi] AB - Opioids are widely used for the treatment of moderate/severe pain in cancer and noncancer patients. In this study, we searched for safety signals for a wide variety of opioid-related adverse events (AEs) in elderly patients by disproportionality analysis using the Japanese Adverse Drug Event Report (JADER) database. Data from the JADER database from April 2004 to May 2018 were obtained from the Pharmaceuticals and Medical Devices Agency website. Safety signal detection of opioid-related AEs in elderly patients was defined using the relative elderly reporting odds ratio (ROR). Among the analyzed AEs, opioid-induced neurotoxicity (OIN) was assessed based on the time to onset using the Weibull shape parameter. The following safety signals were detected in elderly patients: respiratory depression, somnolence, hallucinations, akathisia and OIN. Fentanyl, tramadol, oxycodone and morphine exhibited a large relative elderly ROR for OIN. The median time to onset of OIN of transdermal fentanyl, oral tramadol, oral oxycodone and oral morphine was 13.5, 6, 9, and 6 d, respectively. These opioids were classified as early failure types using the Weibull distribution. Our results showed that elderly patients who are administered opioids should be closely monitored for AEs, such as respiratory depression, OIN and akathisia. FAU - Omoto, Takashi AU - Omoto T AD - Department of Pharmacy, Iwate Medical University Hospital. FAU - Asaka, Junichi AU - Asaka J AD - Department of Pharmacy, Iwate Medical University Hospital. AD - Department of Clinical Pharmaceutics, School of Pharmacy, Iwate Medical University. FAU - Sakai, Takamasa AU - Sakai T AD - Drug Informatics, Faculty of Pharmacy, Meijo University. FAU - Sato, Fumihiko AU - Sato F AD - Department of Pharmacy, Iwate Medical University Hospital. FAU - Goto, Nobuyuki AU - Goto N AD - Department of Pharmacy, University of Fukui Hospital. FAU - Kudo, Kenzo AU - Kudo K AD - Department of Pharmacy, Iwate Medical University Hospital. AD - Department of Clinical Pharmaceutics, School of Pharmacy, Iwate Medical University. LA - eng PT - Journal Article PL - Japan TA - Biol Pharm Bull JT - Biological & pharmaceutical bulletin JID - 9311984 RN - 0 (Analgesics, Opioid) SB - IM MH - Adult MH - Adverse Drug Reaction Reporting Systems/*statistics & numerical data MH - Age Distribution MH - Age Factors MH - Aged MH - Aged, 80 and over MH - Analgesics, Opioid/*adverse effects MH - Causality MH - Drug-Related Side Effects and Adverse Reactions/*epidemiology/etiology MH - Female MH - Humans MH - Japan/epidemiology MH - Male MH - Middle Aged MH - *Pharmacovigilance MH - Young Adult OTO - NOTNLM OT - Japanese Adverse Drug Event Report (JADER) database OT - disproportionality analysis OT - elderly patient OT - opioid OT - spontaneous reporting system EDAT- 2021/05/07 06:00 MHDA- 2021/11/23 06:00 CRDT- 2021/05/06 05:58 PHST- 2021/05/06 05:58 [entrez] PHST- 2021/05/07 06:00 [pubmed] PHST- 2021/11/23 06:00 [medline] AID - 10.1248/bpb.b20-00904 [doi] PST - ppublish SO - Biol Pharm Bull. 2021;44(5):627-634. doi: 10.1248/bpb.b20-00904.