PMID- 35776157 OWN - NLM STAT- MEDLINE DCOM- 20220812 LR - 20221005 IS - 1432-1041 (Electronic) IS - 0031-6970 (Print) IS - 0031-6970 (Linking) VI - 78 IP - 9 DP - 2022 Sep TI - Fatal adverse events of rivaroxaban combined with aspirin: an analysis using data from VigiBase. PG - 1521-1526 LID - 10.1007/s00228-022-03357-4 [doi] AB - PURPOSE: The aim of this study was to analyze the clinical characteristics of fatal adverse events (AEs) of rivaroxaban combined with aspirin and to underline the importance of the rational use of drugs. METHODS: The WHO global database of reported potential side effects of medicinal products (VigiBase) was searched for fatal AEs in the combined use of rivaroxaban and aspirin, and the clinical characteristics of those cases with sufficient information (vigiGrade completeness score >/= 0.80) were analyzed. RESULTS: By January 19, 2020, 2309 fatal adverse event reports of rivaroxaban combined with aspirin from 21 countries were entered in VigiBase. One hundred and twenty cases contained further information, of which 42 were female (35%) and 78 were male (65%). The median age was 75 (range 34 to 93) years, and 109 cases (91%) were elderly patients (>/= 65 years). The AEs listed in the fatal case reports included bleeding in 114 cases (mainly intracranial hemorrhage and gastrointestinal hemorrhage, 59 and 46 respectively, accounting for 88%) and ischemic events in six cases (ischemic stroke in three, acute myocardial infarction in two, myocardial infarction combined with acute liver failure in one). Among the patients with bleeding events, 108 (95%) had existing risk factors for bleeding or for interacting with aspirin or rivaroxaban. These may be divided into the following: diseases (hypertension, renal impairment, history of stroke, peptic ulcer, or previous bleeding), drugs (high dose aspirin, antiplatelet drugs, anticoagulants, P-gp inhibitors/CYP3A4 inhibitors, non-steroidal anti-inflammatory drugs, steroids, and selective serotonin reuptake inhibitors), or other factors (e.g., elderly, low body weight, or excessive intake of ginger, fish oil, or alcohol). There were 45 cases with two or more of these risk factors in addition to rivaroxaban and aspirin. Patients with ischemic events are often in very high-risk groups of atherosclerotic cardiovascular disease (ASCVD) or self-discontinuation of treated drugs. Medication errors occurred in 24 patients (20%): excessive treatment in 17 cases, contraindication in three, frequency error in two, excessive treatment combined with contraindication in one, and self-discontinuation in one. CONCLUSIONS: Fatal AEs related to rivaroxaban combined with aspirin, including bleeding and ischemic events, have been reported mostly in the elderly, and sometimes involved medication errors. The fatal AEs mainly manifested as serious bleeding, and most of them occurred in patients with concurrent multiple risk factors. Monitoring coagulation during rivaroxaban treatment is recommended in very high-risk ASCVD populations, and attention should be paid to prevention of medication errors. CI - (c) 2022. The Author(s). FAU - Zhang, Qingxia AU - Zhang Q AUID- ORCID: 0000-0002-3843-8767 AD - Department of Pharmacy, National Clinical Research Center for Geriatric Disease, Xuanwu Hospital Capital Medical University, Beijing, China. WL7322681@sina.com. FAU - Ding, Qian AU - Ding Q AUID- ORCID: 0000-0001-5323-9996 AD - School of Pharmaceutical Science, Capital Medical University, Beijing, China. FAU - Yan, Suying AU - Yan S AD - Department of Pharmacy, National Clinical Research Center for Geriatric Disease, Xuanwu Hospital Capital Medical University, Beijing, China. FAU - Yue, Qun-Ying AU - Yue QY AUID- ORCID: 0000-0003-2475-2621 AD - Uppsala Monitoring Centre, Uppsala, Sweden. qun-ying.yue@who-umc.org. LA - eng PT - Journal Article DEP - 20220701 PL - Germany TA - Eur J Clin Pharmacol JT - European journal of clinical pharmacology JID - 1256165 RN - 0 (Factor Xa Inhibitors) RN - 0 (Platelet Aggregation Inhibitors) RN - 9NDF7JZ4M3 (Rivaroxaban) RN - R16CO5Y76E (Aspirin) SB - IM MH - Aspirin/therapeutic use MH - Factor Xa Inhibitors/therapeutic use MH - Female MH - Hemorrhage/chemically induced/epidemiology MH - Humans MH - Ischemia/chemically induced MH - Male MH - *Myocardial Infarction/drug therapy MH - Platelet Aggregation Inhibitors/therapeutic use MH - *Rivaroxaban/therapeutic use PMC - PMC9365742 OTO - NOTNLM OT - Adverse drug events OT - Aspirin OT - Fatal OT - Medication errors OT - Rivaroxaban OT - VigiBase COIS- The authors declare no competing interests. EDAT- 2022/07/02 06:00 MHDA- 2022/08/13 06:00 PMCR- 2022/07/01 CRDT- 2022/07/01 11:13 PHST- 2022/02/14 00:00 [received] PHST- 2022/06/16 00:00 [accepted] PHST- 2022/07/02 06:00 [pubmed] PHST- 2022/08/13 06:00 [medline] PHST- 2022/07/01 11:13 [entrez] PHST- 2022/07/01 00:00 [pmc-release] AID - 10.1007/s00228-022-03357-4 [pii] AID - 3357 [pii] AID - 10.1007/s00228-022-03357-4 [doi] PST - ppublish SO - Eur J Clin Pharmacol. 2022 Sep;78(9):1521-1526. doi: 10.1007/s00228-022-03357-4. Epub 2022 Jul 1.