Concomitant Drug Interactions With Non–Vitamin K Oral Anticoagulants Are Associated With Bleeding and Mortality Risk in Patients With Nonvalvular Atrial Fibrillation

Background Non–vitamin K oral anticoagulants prevent stroke and systemic embolism in patients with nonvalvular atrial fibrillation. However, potential drug interactions with concomitant medications may compromise their efficacy and escalate the risk of adverse effects. Methods and Results We conduct...

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Main Authors: Chun‐Ka Wong, Yuen‐Kwun Wong, Yap‐Hang Chan, Minqing Lin, Jojo Siu‐Han Hai, Kai‐Hang Yiu, Gregory YH Lip, Kui‐Kai Lau, Hung‐Fat Tse
Format: Article
Language:English
Published: Wiley 2025-05-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
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Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.124.038668
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author Chun‐Ka Wong
Yuen‐Kwun Wong
Yap‐Hang Chan
Minqing Lin
Jojo Siu‐Han Hai
Kai‐Hang Yiu
Gregory YH Lip
Kui‐Kai Lau
Hung‐Fat Tse
author_facet Chun‐Ka Wong
Yuen‐Kwun Wong
Yap‐Hang Chan
Minqing Lin
Jojo Siu‐Han Hai
Kai‐Hang Yiu
Gregory YH Lip
Kui‐Kai Lau
Hung‐Fat Tse
author_sort Chun‐Ka Wong
collection DOAJ
description Background Non–vitamin K oral anticoagulants prevent stroke and systemic embolism in patients with nonvalvular atrial fibrillation. However, potential drug interactions with concomitant medications may compromise their efficacy and escalate the risk of adverse effects. Methods and Results We conducted a territory‐wide retrospective cohort study in Hong Kong, focusing on nonvalvular atrial fibrillation prescribed non–vitamin K oral anticoagulants. The objective was to investigate the associated risk of gastrointestinal bleeding, intracranial hemorrhage, hospitalization for major bleeding, and all‐cause mortality in relation to various concomitant medications. Our analysis included 22 568 patients with nonvalvular atrial fibrillation (aged 75.7 ± 10.8 years; 51.2% men) taking non–vitamin K oral anticoagulants from January 1, 2017, to December 31, 2020, totaling 40 317 patient‐years. It was found that amiodarone (hazard ratio [HR], 1.53), digoxin (HR, 1.30), diltiazem (HR, 1.18), clarithromycin (HR, 4.98), and fluconazole (HR, 2.38) were associated with increased gastrointestinal bleeding, whereas amiodarone (HR, 2.20) and digoxin (HR, 1.61) were associated with increased intracranial hemorrhage. Furthermore, amiodarone (HR, 1.64), digoxin (HR, 1.35), clarithromycin (HR, 4.18), and fluconazole (HR, 2.40) were associated with increased hospitalization for major bleeding. Additionally, amiodarone (HR, 2.65), digoxin (HR, 1.85), diltiazem (HR, 1.44), verapamil (HR, 1.80), antidepressants (HR, 1.31), and fluconazole (HR, 3.27) were associated with increased all‐cause mortality. Conversely, dronedarone (HR, 0.56) and atorvastatin (HR, 0.86) were associated with a significant reduction in all‐cause mortality. Conclusions For patients with nonvalvular atrial fibrillation taking non–vitamin K oral anticoagulants, several concurrent medications were associated with increased risks of intracranial hemorrhage, major bleeding hospitalizations, and overall mortality.
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spelling doaj-art-0a7b24d32d634d2a8bcaad22ba1454da2025-08-20T02:26:30ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802025-05-0114910.1161/JAHA.124.038668Concomitant Drug Interactions With Non–Vitamin K Oral Anticoagulants Are Associated With Bleeding and Mortality Risk in Patients With Nonvalvular Atrial FibrillationChun‐Ka Wong0Yuen‐Kwun Wong1Yap‐Hang Chan2Minqing Lin3Jojo Siu‐Han Hai4Kai‐Hang Yiu5Gregory YH Lip6Kui‐Kai Lau7Hung‐Fat Tse8Department of Medicine, School of Clinical Medicine Li Ka Shing Faculty of Medicine, The University of Hong Kong Hong Kong SAR ChinaDepartment of Medicine, School of Clinical Medicine Li Ka Shing Faculty of Medicine, The University of Hong Kong Hong Kong SAR ChinaDepartment of Medicine, School of Clinical Medicine Li Ka Shing Faculty of Medicine, The University of Hong Kong Hong Kong SAR ChinaDepartment of Medicine, School of Clinical Medicine Li Ka Shing Faculty of Medicine, The University of Hong Kong Hong Kong SAR ChinaDepartment of Medicine, School of Clinical Medicine Li Ka Shing Faculty of Medicine, The University of Hong Kong Hong Kong SAR ChinaDepartment of Medicine, School of Clinical Medicine Li Ka Shing Faculty of Medicine, The University of Hong Kong Hong Kong SAR ChinaLiverpool Centre for Cardiovascular Science University of Liverpool and Liverpool Heart and Chest Hospital Liverpool UKDepartment of Medicine, School of Clinical Medicine Li Ka Shing Faculty of Medicine, The University of Hong Kong Hong Kong SAR ChinaDepartment of Medicine, School of Clinical Medicine Li Ka Shing Faculty of Medicine, The University of Hong Kong Hong Kong SAR ChinaBackground Non–vitamin K oral anticoagulants prevent stroke and systemic embolism in patients with nonvalvular atrial fibrillation. However, potential drug interactions with concomitant medications may compromise their efficacy and escalate the risk of adverse effects. Methods and Results We conducted a territory‐wide retrospective cohort study in Hong Kong, focusing on nonvalvular atrial fibrillation prescribed non–vitamin K oral anticoagulants. The objective was to investigate the associated risk of gastrointestinal bleeding, intracranial hemorrhage, hospitalization for major bleeding, and all‐cause mortality in relation to various concomitant medications. Our analysis included 22 568 patients with nonvalvular atrial fibrillation (aged 75.7 ± 10.8 years; 51.2% men) taking non–vitamin K oral anticoagulants from January 1, 2017, to December 31, 2020, totaling 40 317 patient‐years. It was found that amiodarone (hazard ratio [HR], 1.53), digoxin (HR, 1.30), diltiazem (HR, 1.18), clarithromycin (HR, 4.98), and fluconazole (HR, 2.38) were associated with increased gastrointestinal bleeding, whereas amiodarone (HR, 2.20) and digoxin (HR, 1.61) were associated with increased intracranial hemorrhage. Furthermore, amiodarone (HR, 1.64), digoxin (HR, 1.35), clarithromycin (HR, 4.18), and fluconazole (HR, 2.40) were associated with increased hospitalization for major bleeding. Additionally, amiodarone (HR, 2.65), digoxin (HR, 1.85), diltiazem (HR, 1.44), verapamil (HR, 1.80), antidepressants (HR, 1.31), and fluconazole (HR, 3.27) were associated with increased all‐cause mortality. Conversely, dronedarone (HR, 0.56) and atorvastatin (HR, 0.86) were associated with a significant reduction in all‐cause mortality. Conclusions For patients with nonvalvular atrial fibrillation taking non–vitamin K oral anticoagulants, several concurrent medications were associated with increased risks of intracranial hemorrhage, major bleeding hospitalizations, and overall mortality.https://www.ahajournals.org/doi/10.1161/JAHA.124.038668bleedingdrug interactionmortalitynonvalvular atrial fibrillationnon–vitamin K oral anticoagulant
spellingShingle Chun‐Ka Wong
Yuen‐Kwun Wong
Yap‐Hang Chan
Minqing Lin
Jojo Siu‐Han Hai
Kai‐Hang Yiu
Gregory YH Lip
Kui‐Kai Lau
Hung‐Fat Tse
Concomitant Drug Interactions With Non–Vitamin K Oral Anticoagulants Are Associated With Bleeding and Mortality Risk in Patients With Nonvalvular Atrial Fibrillation
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
bleeding
drug interaction
mortality
nonvalvular atrial fibrillation
non–vitamin K oral anticoagulant
title Concomitant Drug Interactions With Non–Vitamin K Oral Anticoagulants Are Associated With Bleeding and Mortality Risk in Patients With Nonvalvular Atrial Fibrillation
title_full Concomitant Drug Interactions With Non–Vitamin K Oral Anticoagulants Are Associated With Bleeding and Mortality Risk in Patients With Nonvalvular Atrial Fibrillation
title_fullStr Concomitant Drug Interactions With Non–Vitamin K Oral Anticoagulants Are Associated With Bleeding and Mortality Risk in Patients With Nonvalvular Atrial Fibrillation
title_full_unstemmed Concomitant Drug Interactions With Non–Vitamin K Oral Anticoagulants Are Associated With Bleeding and Mortality Risk in Patients With Nonvalvular Atrial Fibrillation
title_short Concomitant Drug Interactions With Non–Vitamin K Oral Anticoagulants Are Associated With Bleeding and Mortality Risk in Patients With Nonvalvular Atrial Fibrillation
title_sort concomitant drug interactions with non vitamin k oral anticoagulants are associated with bleeding and mortality risk in patients with nonvalvular atrial fibrillation
topic bleeding
drug interaction
mortality
nonvalvular atrial fibrillation
non–vitamin K oral anticoagulant
url https://www.ahajournals.org/doi/10.1161/JAHA.124.038668
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