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Ray WA, Chung CP, Stein CM, Smalley W, Zimmerman E, Dupont WD, Hung AM, Daugherty JR, Dickson A, Murray KT. Serious Bleeding in Patients With Atrial Fibrillation Using Diltiazem With Apixaban or Rivaroxaban. JAMA 2024; 331:1565-1575. [PMID: 38619832 PMCID: PMC11019444 DOI: 10.1001/jama.2024.3867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 02/29/2024] [Indexed: 04/16/2024]
Abstract
Importance Diltiazem, a commonly prescribed ventricular rate-control medication for patients with atrial fibrillation, inhibits apixaban and rivaroxaban elimination, possibly causing overanticoagulation. Objective To compare serious bleeding risk for new users of apixaban or rivaroxaban with atrial fibrillation treated with diltiazem or metoprolol. Design, Setting, and Participants This retrospective cohort study included Medicare beneficiaries aged 65 years or older with atrial fibrillation who initiated apixaban or rivaroxaban use and also began treatment with diltiazem or metoprolol between January 1, 2012, and November 29, 2020. Patients were followed up to 365 days through November 30, 2020. Data were analyzed from August 2023 to February 2024. Exposures Diltiazem and metoprolol. Main Outcomes and Measures The primary outcome was a composite of bleeding-related hospitalization and death with recent evidence of bleeding. Secondary outcomes were ischemic stroke or systemic embolism, major ischemic or hemorrhagic events (ischemic stroke, systemic embolism, intracranial or fatal extracranial bleeding, or death with recent evidence of bleeding), and death without recent evidence of bleeding. Hazard ratios (HRs) and rate differences (RDs) were adjusted for covariate differences with overlap weighting. Results The study included 204 155 US Medicare beneficiaries, of whom 53 275 received diltiazem and 150 880 received metoprolol. Study patients (mean [SD] age, 76.9 [7.0] years; 52.7% female) had 90 927 person-years (PY) of follow-up (median, 120 [IQR, 59-281] days). Patients receiving diltiazem treatment had increased risk for the primary outcome (RD, 10.6 [95% CI, 7.0-14.2] per 1000 PY; HR, 1.21 [95% CI, 1.13-1.29]) and its components of bleeding-related hospitalization (RD, 8.2 [95% CI, 5.1-11.4] per 1000 PY; HR, 1.22 [95% CI, 1.13-1.31]) and death with recent evidence of bleeding (RD, 2.4 [95% CI, 0.6-4.2] per 1000 PY; HR, 1.19 [95% CI, 1.05-1.34]) compared with patients receiving metoprolol. Risk for the primary outcome with initial diltiazem doses exceeding 120 mg/d (RD, 15.1 [95% CI, 10.2-20.1] per 1000 PY; HR, 1.29 [95% CI, 1.19-1.39]) was greater than that for lower doses (RD, 6.7 [95% CI, 2.0-11.4] per 1000 PY; HR, 1.13 [95% CI, 1.04-1.24]). For doses exceeding 120 mg/d, the risk of major ischemic or hemorrhagic events was increased (HR, 1.14 [95% CI, 1.02-1.27]). Neither dose group had significant changes in the risk for ischemic stroke or systemic embolism or death without recent evidence of bleeding. When patients receiving high- and low-dose diltiazem treatment were directly compared, the HR for the primary outcome was 1.14 (95% CI, 1.02-1.26). Conclusions and Relevance In Medicare patients with atrial fibrillation receiving apixaban or rivaroxaban, diltiazem was associated with greater risk of serious bleeding than metoprolol, particularly for diltiazem doses exceeding 120 mg/d.
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Affiliation(s)
- Wayne A. Ray
- Department of Health Policy, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Cecilia P. Chung
- Department of Medicine, University of Miami, Miami, Florida
- Miami VA Healthcare System, Miami, Florida
| | - C. Michael Stein
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Walter Smalley
- Department of Health Policy, Vanderbilt University School of Medicine, Nashville, Tennessee
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Eli Zimmerman
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - William D. Dupont
- Department of Health Policy, Vanderbilt University School of Medicine, Nashville, Tennessee
- Department of Biostatistics, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Adriana M. Hung
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - James R. Daugherty
- Department of Health Policy, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Alyson Dickson
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Katherine T. Murray
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee
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Ahmed H, Reeve N, Farewell D, Hamilton F, Ponsford M, Hippisley-Cox J, Noble S. Risk of bleeding amongst warfarin and direct oral anticoagulant users prescribed immediate antibiotics for respiratory tract infection: Cohort study. Pharmacoepidemiol Drug Saf 2024; 33:e5794. [PMID: 38680080 DOI: 10.1002/pds.5794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 02/20/2024] [Accepted: 04/01/2024] [Indexed: 05/01/2024]
Abstract
PURPOSE Incidence of bleeding amongst warfarin and direct oral anticoagulant (DOAC) users is greater following a respiratory tract infection (RTI). It is unclear whether immediate antibiotics modify this association. We estimated the risk of bleeding amongst warfarin and DOAC users with RTI by antibiotic treatment. METHODS This retrospective cohort study used data from the Clinical Practice Research Datalink (CPRD) GOLD for adults in England prescribed warfarin or a DOAC, who sought primary care for an RTI between 1st January 2011 and 31st December 2019. Outcomes were major bleeding (hospital admission for intracranial or gastrointestinal bleeding), and non-major bleeding (hospital admission or General Practice consult for epistaxis, haemoptysis, or haematuria). Cox models derived hazard ratios (HRs) and 95% confidence intervals (CIs) for each outcome, adjusting for confounders using inverse probability of treatment weighting. RESULTS Of 14 817 warfarin and DOAC users consulting for an RTI, 8768 (59%) were prescribed immediate antibiotics and 6049 (41%) were not. Approximately 49% were female, and median age was 76 years. Antibiotics were associated with reduced risk of major bleeding (adjusted HR 0.38, 95% CI 0.25 to 0.58). This was consistent across several sensitivity analyses. Antibiotics were also associated with a reduced risk of non-major bleeding (adjusted HR 0.78, 95% CI 0.61 to 0.99). CONCLUSIONS Immediate antibiotics were associated with reduced risk of bleeding amongst warfarin and DOAC users with an RTI. Further work is needed to understand mechanisms and confirm whether a lower threshold for antibiotic use for RTI in this population may be beneficial.
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Affiliation(s)
- Haroon Ahmed
- Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK
| | - Nicola Reeve
- Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK
| | - Daniel Farewell
- Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK
| | - Fergus Hamilton
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Mark Ponsford
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, UK
| | - Julia Hippisley-Cox
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Simon Noble
- Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK
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Al Zaria MH, Buckley LF, Dell'orfano H, Manzo P, Fanikos J. Management of direct oral anticoagulant drug interactions in hospitalized patients. J Thromb Thrombolysis 2024; 57:598-602. [PMID: 38554223 DOI: 10.1007/s11239-024-02967-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/08/2024] [Indexed: 04/01/2024]
Abstract
Moderate-strong CYP3A4 or Pgp inhibitors and inducers alter direct oral anticoagulant (DOAC) pharmacokinetics. Whether the presence of a DOAC drug-drug interaction (DDI) prompts in- hospital changes in management remains unknown. We identified all hospitalized patients at our institution who were admitted with a clinically relevant DOAC DDI from 01/2021 to 06/2021. Clinically relevant DOAC DDIs were defined as those listed in the prescribing information or FDA CYP3A4/Pgp inhibitors clinical indexes. We assessed the prevalence of DOAC DDIs and categorized their management as: drug stopped, drug held, or drug continued. For drugs that were continued we assessed whether the dose of the DOAC or interacting drug was increased, decreased or unchanged during the admission. We ascertained the number of DOAC DDIs that prompted an automated prescribing alert in our electronic health record (EHR). Finally, we conducted a logistic regression model to compare users of DOACs with DDI who had their regimen adjusted versus those without adjustments, focusing on outcomes of rehospitalization and death, adjusting for age and gender. Among 3,725 hospitalizations with a DOAC admission order, 197 (5%) had a clinically relevant DOAC DDI. The DOAC and the interacting drug were continued at discharge for 124 (63%) hospitalizations. The most frequent adjustments were stopping the interacting drug (73%) and stopping the DOAC (15%). Only 7 (4%) of DOAC DDIs prompted an EHR alert. The adjusted odds ratios for rehospitalizations and death, respectively, among patients whose regimens were adjusted compared to those whose were not, were 1.29 (95% CI, 0.67 to 2.48; P = 0.44) and 1.88 (95% CI, 0.91 to 3.89; P = 0.09). Clinically relevant DDIs with DOACs occur infrequently among hospitalized patients and usually are managed without stopping the DOAC. The clinical impact of such DDIs and subsequent adjustments on thrombotic and hemorrhagic outcomes requires further investigation.
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Affiliation(s)
- Mohsen H Al Zaria
- Department of Pharmacy Services, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA.
| | - Leo F Buckley
- Department of Pharmacy Services, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - Heather Dell'orfano
- Department of Pharmacy Services, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - Peter Manzo
- Department of Pharmacy Services, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - John Fanikos
- Department of Pharmacy Services, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
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Olie RH, Winckers K, Rocca B, Ten Cate H. Oral Anticoagulants Beyond Warfarin. Annu Rev Pharmacol Toxicol 2024; 64:551-575. [PMID: 37758192 DOI: 10.1146/annurev-pharmtox-032823-122811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Direct oral anticoagulants (DOACs) have largely replaced vitamin K antagonists, mostly warfarin, for the main indications for oral anticoagulation, prevention and treatment of venous thromboembolism, and prevention of embolic stroke in atrial fibrillation. While DOACs offer practical, fixed-dose anticoagulation in many patients, specific restrictions or contraindications may apply. DOACs are not sufficiently effective in high-thrombotic risk conditions such as antiphospholipid syndrome and mechanical heart valves. Patients with cancer-associated thrombosis may benefit from DOACs, but the bleeding risk, particularly in those with gastrointestinal or urogenital tumors, must be carefully weighed. In patients with frailty, excess body weight, and/or moderate-to-severe chronic kidney disease, DOACs must be cautiously administered and may require laboratory monitoring. Reversal agents have been developed and approved for life-threatening bleeding. In addition, the clinical testing of potentially safer anticoagulants such as factor XI(a) inhibitors is important to further optimize anticoagulant therapy in an increasingly elderly and frail population worldwide.
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Affiliation(s)
- Renske H Olie
- Departments of Internal Medicine (Section of Vascular Medicine) and Biochemistry, Thrombosis Expertise Center, and CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands;
| | - Kristien Winckers
- Departments of Internal Medicine (Section of Vascular Medicine) and Biochemistry, Thrombosis Expertise Center, and CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands;
| | - Bianca Rocca
- Section of Pharmacology, Catholic University School of Medicine, Rome, Italy
- Department of Neurosciences, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
| | - Hugo Ten Cate
- Departments of Internal Medicine (Section of Vascular Medicine) and Biochemistry, Thrombosis Expertise Center, and CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands;
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
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Yu Y, Li H, Liu J, Liang Q, Xie J, Sun G. Rivaroxaban Plasma Concentration and Clinical Outcomes on Older Patients with Non-valvular Atrial Fibrillation and Pulmonary Infection. Am J Cardiovasc Drugs 2024; 24:129-139. [PMID: 38142441 DOI: 10.1007/s40256-023-00622-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/27/2023] [Indexed: 12/26/2023]
Abstract
INTRODUCTION Infection may induce thrombotic and hemorrhagic events; however, it is currently unclear whether the inflammatory response affects the coagulation function and the clinical efficacy and safety of rivaroxaban in older patients with non-valvular atrial fibrillation (NVAF). OBJECTIVE This project aimed to assess the effectiveness and safety of the non-vitamin K antagonist oral anticoagulant rivaroxaban in older patients with NVAF complicated by infection, and to provide a basis for possible drug dose adjustment. METHODS A total of 152 NVAF patients aged ≥ 65 years admitted to the Fifth People's Hospital of Shanghai from June 2020 to May 2022 were included in this prospective, observational study. The changes in steady-state plasma concentration of rivaroxaban and FXa inhibition rate were compared between patients with and without infection, and the impact on the occurrence of infection, thrombotic events, and bleeding events was compared through 1-year follow-up. RESULTS Our results showed that patients in the infection group had abnormal inflammation markers, as well as an increased occurrence of bleeding and thrombotic events during hospitalization and follow-up. The high incidence of bleeding events in patients was closely related to the occurrence of infection, lymphocyte reduction, and increased neutrophil-lymphocyte ratio. The increase in thrombotic events was related to a decrease in rivaroxaban plasma concentration. Bleeding events in patients taking anticoagulant drugs are not necessarily due to drug accumulation. CONCLUSIONS Timely control of infection, assessment of bleeding and thrombotic risks, and selection of appropriate anticoagulation treatment strategies should be made in older NVAF patients who develop pulmonary infection. CLINICAL TRIALS REGISTRATION Chinese Clinical Trial Registry Number ChiCTR2000033144.
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Affiliation(s)
- Yan Yu
- Department of Pharmacy, Fifth People's Hospital of Shanghai, Shanghai, China
| | - Haobin Li
- Department of Pharmacy, Fifth People's Hospital of Shanghai, Shanghai, China
| | - Jing Liu
- Department of Pharmacy, Fifth People's Hospital of Shanghai, Shanghai, China
| | - Qing Liang
- Department of Pharmacy, Fifth People's Hospital of Shanghai, Shanghai, China
| | - Juan Xie
- Department of General Practice, Fifth People's Hospital of Shanghai, Shanghai, China.
| | - Guangchun Sun
- Department of Pharmacy, Fifth People's Hospital of Shanghai, Shanghai, China.
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Kiyomiya K, Tomabechi R, Saito N, Watai K, Takada T, Shirasaka Y, Kishimoto H, Higuchi K, Inoue K. Macrolide and Ketolide Antibiotics Inhibit the Cytotoxic Effect of Trastuzumab Emtansine in HER2-Positive Breast Cancer Cells: Implication of a Potential Drug-ADC Interaction in Cancer Chemotherapy. Mol Pharm 2023; 20:6130-6139. [PMID: 37971309 DOI: 10.1021/acs.molpharmaceut.3c00490] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Macrolides are widely used for the long-term treatment of infections and chronic inflammatory diseases. The pharmacokinetic features of macrolides include extensive tissue distribution because of favorable membrane permeability and accumulation within lysosomes. Trastuzumab emtansine (T-DM1), a HER2-targeting antibody-drug conjugate (ADC), is catabolized in the lysosomes, where Lys-SMCC-DM1, a potent cytotoxic agent, is processed by proteinase degradation and subsequently released from the lysosomes to the cytoplasm through the lysosomal membrane transporter SLC46A3, resulting in an antitumor effect. We recently demonstrated that erythromycin and clarithromycin inhibit SLC46A3 and attenuate the cytotoxicity of T-DM1; however, the effect of other macrolides and ketolides has not been determined. In this study, we evaluated the effect of macrolide and ketolide antibiotics on T-DM1 cytotoxicity in a human breast cancer cell line, KPL-4. Macrolides used in the clinic, such as roxithromycin, azithromycin, and josamycin, as well as solithromycin, a ketolide under clinical development, significantly attenuated T-DM1 cytotoxicity in addition to erythromycin and clarithromycin. Of these, azithromycin was the most potent inhibitor of T-DM1 efficacy. These antibiotics significantly inhibited the transport function of SLC46A3 in a concentration-dependent manner. Moreover, these compounds extensively accumulated in the lysosomes at the levels estimated to be 0.41-13.6 mM when cells were incubated with them at a 2 μM concentration. The immunofluorescence staining of trastuzumab revealed that azithromycin and solithromycin inhibit the degradation of T-DM1 in the lysosomes. These results suggest that the attenuation of T-DM1 cytotoxicity by macrolide and ketolide antibiotics involves their lysosomal accumulation and results in their greater lysosomal concentrations to inhibit the SLC46A3 function and T-DM1 degradation. This suggests a potential drug-ADC interaction during cancer chemotherapy.
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Affiliation(s)
- Keisuke Kiyomiya
- Department of Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Ryuto Tomabechi
- Department of Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
- Laboratory of Pharmaceutics, Kitasato University School of Pharmacy, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Naoki Saito
- Department of Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Kenta Watai
- Department of Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Tappei Takada
- Department of Pharmacy, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo113-8655, Japan
| | - Yoshiyuki Shirasaka
- Faculty of Pharmacy, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Hisanao Kishimoto
- Department of Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Kei Higuchi
- Department of Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Katsuhisa Inoue
- Department of Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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Ray WA, Chung CP, Stein CM, Smalley W, Zimmerman E, Dupont WD, Hung AM, Daugherty JR, Dickson AL, Murray KT. Risk for Bleeding-Related Hospitalizations During Use of Amiodarone With Apixaban or Rivaroxaban in Patients With Atrial Fibrillation : A Retrospective Cohort Study. Ann Intern Med 2023; 176:769-778. [PMID: 37216662 DOI: 10.7326/m22-3238] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/24/2023] Open
Abstract
BACKGROUND Amiodarone, the most effective antiarrhythmic drug in atrial fibrillation, inhibits apixaban and rivaroxaban elimination, thus possibly increasing anticoagulant-related risk for bleeding. OBJECTIVE For patients receiving apixaban or rivaroxaban, to compare risk for bleeding-related hospitalizations during treatment with amiodarone versus flecainide or sotalol, antiarrhythmic drugs that do not inhibit these anticoagulants' elimination. DESIGN Retrospective cohort study. SETTING U.S. Medicare beneficiaries aged 65 years or older. PATIENTS Patients with atrial fibrillation began anticoagulant use between 1 January 2012 and 30 November 2018 and subsequently initiated treatment with study antiarrhythmic drugs. MEASUREMENTS Time to event for bleeding-related hospitalizations (primary outcome) and ischemic stroke, systemic embolism, and death with or without recent (past 30 days) evidence of bleeding (secondary outcomes), adjusted with propensity score overlap weighting. RESULTS There were 91 590 patients (mean age, 76.3 years; 52.5% female) initiating use of study anticoagulants and antiarrhythmic drugs, 54 977 with amiodarone and 36 613 with flecainide or sotalol. Risk for bleeding-related hospitalizations increased with amiodarone use (rate difference [RD], 17.5 events [95% CI, 12.0 to 23.0 events] per 1000 person-years; hazard ratio [HR], 1.44 [CI, 1.27 to 1.63]). Incidence of ischemic stroke or systemic embolism did not increase (RD, -2.1 events [CI, -4.7 to 0.4 events] per 1000 person-years; HR, 0.80 [CI, 0.62 to 1.03]). The risk for death with recent evidence of bleeding (RD, 9.1 events [CI, 5.8 to 12.3 events] per 1000 person-years; HR, 1.66 [CI, 1.35 to 2.03]) was greater than that for other deaths (RD, 5.6 events [CI, 0.5 to 10.6 events] per 1000 person-years; HR, 1.15 [CI, 1.00 to 1.31]) (HR comparison: P = 0.003). The increased incidence of bleeding-related hospitalizations for rivaroxaban (RD, 28.0 events [CI, 18.4 to 37.6 events] per 1000 person-years) was greater than that for apixaban (RD, 9.1 events [CI, 2.8 to 15.3 events] per 1000 person-years) (P = 0.001). LIMITATION Possible residual confounding. CONCLUSION In this retrospective cohort study, patients aged 65 years or older with atrial fibrillation treated with amiodarone during apixaban or rivaroxaban use had greater risk for bleeding-related hospitalizations than those treated with flecainide or sotalol. PRIMARY FUNDING SOURCE National Heart, Lung, and Blood Institute.
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Affiliation(s)
- Wayne A Ray
- Department of Health Policy, Vanderbilt University School of Medicine, Nashville, Tennessee (W.A.R., J.R.D.)
| | - Cecilia P Chung
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee (C.P.C., A.M.H., A.L.D.)
| | - C Michael Stein
- Departments of Medicine and Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee (C.M.S., K.T.M.)
| | - Walter Smalley
- Departments of Health Policy and Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee (W.S.)
| | - Eli Zimmerman
- Department of Neurology, Vanderbilt University School of Medicine, Nashville, Tennessee (E.Z.)
| | - William D Dupont
- Departments of Health Policy and Biostatistics, Vanderbilt University School of Medicine, Nashville, Tennessee (W.D.D.)
| | - Adriana M Hung
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee (C.P.C., A.M.H., A.L.D.)
| | - James R Daugherty
- Department of Health Policy, Vanderbilt University School of Medicine, Nashville, Tennessee (W.A.R., J.R.D.)
| | - Alyson L Dickson
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee (C.P.C., A.M.H., A.L.D.)
| | - Katherine T Murray
- Departments of Medicine and Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee (C.M.S., K.T.M.)
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Hwang KW, Choi JH, Lee SY, Lee SH, Chon MK, Lee J, Kim H, Kim YG, Choi HO, Kim JS, Park YH, Kim JH, Chun KJ, Nam GB, Choi KJ. Oral anticoagulants and concurrent rifampin administration in tuberculosis patients with non-valvular atrial fibrillation. BMC Cardiovasc Disord 2023; 23:182. [PMID: 37016321 PMCID: PMC10074893 DOI: 10.1186/s12872-023-03212-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 03/29/2023] [Indexed: 04/06/2023] Open
Abstract
BACKGROUND Evidence and guidelines for Non-vitamin K antagonist oral anticoagulants (NOACs) use when prescribing concurrent rifampin for tuberculosis treatment in patients with non-valvular atrial fibrillation (NVAF) are limited. METHODS Using the Korean National Health Insurance Service database from January 2009 to December 2018, we performed a population-based retrospective cohort study to assess the net adverse clinical events (NACE), a composite of ischemic stroke or systemic embolism and major bleeding, of NOACs compared with warfarin among NVAF patients taking concurrent rifampin administration for tuberculosis treatment. After a propensity matching score (PSM) analysis, Cox proportional hazards regression was performed in matched cohorts to investigate the clinical outcomes. RESULTS Of the 735 consecutive patients selected, 465 (63.3%) received warfarin and 270 (36.7%) received NOACs. Among 254 pairs of patients after PSM, the crude incidence rate of NACE was 25.6 in NOAC group and 32.8 per 100 person-years in warfarin group. There was no significant difference between NOAC and warfarin use in NACE (hazard ratio [HR], 0.74; 95% confidence interval [CI], 0.48-1.14; P = 0.172). Major bleeding was the main driver of NACE, and NOAC use was associated with a statistically significantly lower risk of major bleeding than that with warfarin use (HR, 0.63; 95% CI, 0.40-1.00; P = 0.0499). CONCLUSIONS In our population-based study, there was no statically significant difference in the occurrence of NACE between NOAC and warfarin use. NOAC use may be associated with a lower risk of major bleeding than that with warfarin use.
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Affiliation(s)
- Ki Won Hwang
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Pusan National University, Pusan National University Yangsan Hospital, 20, Geumo-ro, Mulgeum-eup, Yangsan, Gyeongnam, 626-770, South Korea.
| | - Jin Hee Choi
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Pusan National University, Pusan National University Yangsan Hospital, 20, Geumo-ro, Mulgeum-eup, Yangsan, Gyeongnam, 626-770, South Korea
| | - Soo Yong Lee
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Pusan National University, Pusan National University Yangsan Hospital, 20, Geumo-ro, Mulgeum-eup, Yangsan, Gyeongnam, 626-770, South Korea
| | - Sang Hyun Lee
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Pusan National University, Pusan National University Yangsan Hospital, 20, Geumo-ro, Mulgeum-eup, Yangsan, Gyeongnam, 626-770, South Korea
| | - Min Ku Chon
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Pusan National University, Pusan National University Yangsan Hospital, 20, Geumo-ro, Mulgeum-eup, Yangsan, Gyeongnam, 626-770, South Korea
| | - Jungkuk Lee
- Data Science Team, Hanmi Pharm. Co., Ltd, Seoul, Republic of Korea
| | - Hasung Kim
- Data Science Team, Hanmi Pharm. Co., Ltd, Seoul, Republic of Korea
| | - Yong-Giun Kim
- Division of Cardiology, Department of Internal Medicine, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Hyung Oh Choi
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Hospital, Bucheon, Gyeonggi-do, Republic of Korea
| | - Jeong Su Kim
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Pusan National University, Pusan National University Yangsan Hospital, 20, Geumo-ro, Mulgeum-eup, Yangsan, Gyeongnam, 626-770, South Korea
| | - Yong-Hyun Park
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Pusan National University, Pusan National University Yangsan Hospital, 20, Geumo-ro, Mulgeum-eup, Yangsan, Gyeongnam, 626-770, South Korea
| | - June Hong Kim
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Pusan National University, Pusan National University Yangsan Hospital, 20, Geumo-ro, Mulgeum-eup, Yangsan, Gyeongnam, 626-770, South Korea
| | - Kook Jin Chun
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Pusan National University, Pusan National University Yangsan Hospital, 20, Geumo-ro, Mulgeum-eup, Yangsan, Gyeongnam, 626-770, South Korea
| | - Gi-Byoung Nam
- Heart Institute, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Kee-Joon Choi
- Heart Institute, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
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9
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Lenard A, Hermann SA, Stoll F, Burhenne J, Foerster KI, Mikus G, Meid AD, Haefeli WE, Blank A. Effect of Clarithromycin, a Strong CYP3A and P-glycoprotein Inhibitor, on the Pharmacokinetics of Edoxaban in Healthy Volunteers and the Evaluation of the Drug Interaction with Other Oral Factor Xa Inhibitors by a Microdose Cocktail Approach. Cardiovasc Drugs Ther 2023:10.1007/s10557-023-07443-2. [PMID: 36870039 DOI: 10.1007/s10557-023-07443-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/17/2023] [Indexed: 03/05/2023]
Abstract
PURPOSE We assessed the differential effect of clarithromycin, a strong inhibitor of cytochrome P450 (CYP) 3A4 and P-glycoprotein, on the pharmacokinetics of a regular dose of edoxaban and on a microdose cocktail of factor Xa inhibitors (FXaI). Concurrently, CYP3A activity was determined with a midazolam microdose. METHODS In an open-label fixed-sequence trial in 12 healthy volunteers, the pharmacokinetics of a microdosed FXaI cocktail (μ-FXaI; 25 μg apixaban, 50 μg edoxaban, and 25 μg rivaroxaban) and of 60 mg edoxaban before and during clarithromycin (2 x 500 mg/d) dosed to steady-state was evaluated. Plasma concentrations of study drugs were quantified using validated ultra-performance liquid chromatography-tandem mass spectrometry methods. RESULTS Therapeutic clarithromycin doses increased the exposure of a therapeutic 60 mg dose of edoxaban with a geometric mean ratio (GMR) of the area under the plasma concentration-time curve (AUC) of 1.53 (90 % CI: 1.37-1.70; p < 0.0001). Clarithromycin also increased the GMR (90% CI) of the exposure of microdosed FXaI apixaban to 1.38 (1.26-1.51), edoxaban to 2.03 (1.84-2.24), and rivaroxaban to 1.44 (1.27-1.63). AUC changes observed for the therapeutic edoxaban dose were significantly smaller than those observed with the microdose (p < 0.001). CONCLUSION Clarithromycin increases FXaI exposure. However, the magnitude of this drug interaction is not expected to be clinically relevant. The edoxaban microdose overestimates the extent of the drug interaction with the therapeutic dose, whereas AUC ratios for apixaban and rivaroxaban were comparable to the interaction with therapeutic doses as reported in the literature. TRIAL REGISTRATION EudraCT Number: 2018-002490-22.
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Affiliation(s)
- Alexander Lenard
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
- Partner Site Heidelberg, German Center for Infection Research, Heidelberg, Germany
| | - Simon A Hermann
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
- Partner Site Heidelberg, German Center for Infection Research, Heidelberg, Germany
| | - Felicitas Stoll
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
- Partner Site Heidelberg, German Center for Infection Research, Heidelberg, Germany
| | - Juergen Burhenne
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
- Partner Site Heidelberg, German Center for Infection Research, Heidelberg, Germany
| | - Kathrin I Foerster
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
- Partner Site Heidelberg, German Center for Infection Research, Heidelberg, Germany
| | - Gerd Mikus
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
- Partner Site Heidelberg, German Center for Infection Research, Heidelberg, Germany
| | - Andreas D Meid
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
- Partner Site Heidelberg, German Center for Infection Research, Heidelberg, Germany
| | - Walter E Haefeli
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
- Partner Site Heidelberg, German Center for Infection Research, Heidelberg, Germany
| | - Antje Blank
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.
- Partner Site Heidelberg, German Center for Infection Research, Heidelberg, Germany.
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10
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Yagi T, Mannheimer B, Reutfors J, Ursing J, Giunta DH, Kieler H, Linder M. Bleeding events among patients concomitantly treated with direct oral anticoagulants and macrolide or fluoroquinolone antibiotics. Br J Clin Pharmacol 2023; 89:887-897. [PMID: 36098510 PMCID: PMC10092847 DOI: 10.1111/bcp.15531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 08/11/2022] [Accepted: 08/19/2022] [Indexed: 01/18/2023] Open
Abstract
Fluoroquinolones and macrolides may, due to a potential drug-drug interaction, increase the concentration of any concomitantly administered direct oral anticoagulant (DOAC) and thereby increase the risk of severe bleeding. However, clinical evidence for such an effect is scarce. The present study aimed to evaluate the association between the use of fluoroquinolones or macrolides and bleeding events in patients with concomitant DOAC use. This was a nationwide cohort study including 19 288 users of DOACs in 2008-2018 using information from Swedish national health registers. We compared the incidence of bleeding events associated with use of fluoroquinolones or macrolides using doxycycline as a negative control. Cox regression was used to calculate crude and adjusted hazard ratios (aHRs) in time windows of various length of follow-up after the start of antibiotic use. The incidence rates for fluoroquinolones and macrolides ranged from 12 to 24 and from 12 to 53 bleeding events per 100 000 patients in the investigated time windows. The aHRs (95% confidence interval) for use of fluoroquinolones and macrolides were 1.29 (0.69-2.44) and 2.60 (0.74-9.08) at the concomitant window, 1.31 (0.84-2.03) and 1.79 (0.75-4.29) at 30 days, and 1.34 (0.99-1.82) and 1.28 (0.62-2.65) at 150 days, respectively. With regard to fluoroquinolones, the present study suggests that the risk of bleeding when combined with DOACs, if any, is small. Codispensation of macrolides in patients on DOACs was not associated with an increased risk of bleeding. However, due to the small number of macrolide users, the results must be interpreted with caution.
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Affiliation(s)
- Tatsuya Yagi
- Department of Medicine Solna, Centre for Pharmacoepidemiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Buster Mannheimer
- Department of Clinical Science and Education at Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Johan Reutfors
- Department of Medicine Solna, Centre for Pharmacoepidemiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Johan Ursing
- Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Diego Hernan Giunta
- Department of Medicine Solna, Centre for Pharmacoepidemiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Helle Kieler
- Department of Medicine Solna, Centre for Pharmacoepidemiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Marie Linder
- Department of Medicine Solna, Centre for Pharmacoepidemiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
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11
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Shurrab M, Jackevicius CA, Austin PC, Tu K, Qiu F, Singh SM, Crystal E, Caswell J, Michael F, Andrade JG, Ko DT. Association Between Concurrent Use of Amiodarone and DOACs and Risk of Bleeding in Patients With Atrial Fibrillation. Am J Cardiol 2023; 186:58-65. [PMID: 36343447 DOI: 10.1016/j.amjcard.2022.10.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/04/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022]
Abstract
Amiodarone is a commonly used pharmacotherapy in patients with atrial fibrillation (AF), with a potential for drug-drug interactions with direct oral anticoagulants (DOACs). We aimed to assess the bleeding risk after co-prescription of amiodarone and DOACs among adults with AF. We conducted a population-based, nested case-control study in Ontario, Canada. The study population included all patients with AF aged >66 years on a DOAC between April 1, 2011 and March 31, 2018. Cases were patients admitted with major bleeding (index date). Controls were matched in a 2:1 ratio to cases. We categorized exposure to amiodarone before the index date as: (1) current users (amiodarone within 60 days), (2) past users (amiodarone within 61 to 140 days), and (3) unexposed (no amiodarone prescription or amiodarone prescription >140 days before index date). Conditional logistic regression models were used to examine the association between bleeding and amiodarone co-prescription. Among 86,679 patients with AF on a DOAC, we identified 2,766 cases (3.2%) admitted with major bleeding. The median age of patients with AF was 80 years (interquartile range 75 to 85); 48.3% were women. After multivariable adjustment, there was a significant association between major bleeding and current use of amiodarone (adjusted odds ratio 1.53; 95% confidence interval 1.24 to 1.89, p <0.001) but no significant association between major bleeding and past use of amiodarone (adjusted odds ratio 1.13, 95% confidence interval 0.76 to 1.68, p = 0.545) compared with the unexposed group. In conclusion, among older patients with AF on a DOAC, there was 53% increased odds of major bleeding with the current use of amiodarone.
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Affiliation(s)
- Mohammed Shurrab
- Cardiology Department, Health Sciences North, Northern Ontario School of Medicine, Sudbury, Ontario, Canada; Health Sciences North Research Institute, Sudbury, Ontario, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; ICES, Toronto, Ontario, Canada.
| | - Cynthia A Jackevicius
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; ICES, Toronto, Ontario, Canada; Department of Pharmacy Practice and Administration, College of Pharmacy, Western University of Health Sciences, Pomona, California; Pharmacy Department, VA Greater Los Angeles Healthcare System, California
| | - Peter C Austin
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; ICES, Toronto, Ontario, Canada
| | - Karen Tu
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; North York General Hospital, Toronto, Ontario, Canada; Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada; University Health Network-Toronto Western Hospital Family Health Team, Toronto, Ontario, Canada
| | | | - Sheldon M Singh
- Division of Cardiology, Schulich Heart Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Eugene Crystal
- Division of Cardiology, Schulich Heart Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Joseph Caswell
- Health Sciences North Research Institute, Sudbury, Ontario, Canada; ICES, Toronto, Ontario, Canada
| | - Faith Michael
- Cardiology Department, Health Sciences North, Northern Ontario School of Medicine, Sudbury, Ontario, Canada
| | - Jason G Andrade
- Heart Rhythm Services, Department of Medicine, University of British Columbia, Vancouver, Canada; Center for Cardiovascular Innovation, Vancouver, Canada
| | - Dennis T Ko
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; ICES, Toronto, Ontario, Canada; Division of Cardiology, Schulich Heart Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
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12
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Wolf U, Baust H, Neef R, Steinke T. Individual Pharmacotherapy Management (IPM)—IV: Optimized Usage of Approved Antimicrobials Addressing Under-Recognized Adverse Drug Reactions and Drug-Drug Interactions in Polypharmacy. Antibiotics (Basel) 2022; 11:antibiotics11101381. [PMID: 36290039 PMCID: PMC9599027 DOI: 10.3390/antibiotics11101381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/24/2022] [Accepted: 10/05/2022] [Indexed: 11/28/2022] Open
Abstract
Antimicrobial therapy is often a life-saving medical intervention for inpatients and outpatients. Almost all medical disciplines are involved in this therapeutic procedure. Knowledge of adverse drug reactions (ADRs) and drug-drug interactions (DDIs) is important to avoid drug-related harm. Within the broad spectrum of antibiotic and antifungal therapy, most typical ADRs are known to physicians. The aim of this study was to evaluate relevant pharmacological aspects with which we are not so familiar and to provide further practical guidance. Individual pharmacotherapy management (IPM) as a synopsis of internal medicine and clinical pharmacology based on the entirety of the digital patient information with reference to drug information, guidelines, and literature research has been continuously performed for over 8 years in interdisciplinary intensive care and trauma and transplant patients. Findings from over 52,000 detailed medication analyses highlight critical ADRs and DDIs, especially in these vulnerable patients with polypharmacy. We present the most relevant ADRs and DDIs in antibiotic and antifungal pharmacology, which are less frequently considered in relation to neurologic, hemostaseologic, hematologic, endocrinologic, and cardiac complexities. Constant awareness and preventive strategies help avoid life-threatening manifestations of these inherent risks and ensure patient and drug safety in antimicrobial therapy.
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Affiliation(s)
- Ursula Wolf
- Pharmacotherapy Management, University Hospital Halle (Saale), Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany
- Correspondence:
| | - Henning Baust
- University Clinic for Anesthesiology and Operative Intensive Care Medicine, University Hospital Halle (Saale), Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Rüdiger Neef
- Department of Orthopedics, Trauma and Reconstructive Surgery, Division of Geriatric Traumatology, University Hospital Halle (Saale), Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Thomas Steinke
- University Clinic for Anesthesiology and Operative Intensive Care Medicine, University Hospital Halle (Saale), Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany
- Clinic for Anesthesiology, Intensive Care Medicine and Pain Therapy, Carl-von-Basedow-Klinikum Saalekreis, 06127 Merseburg, Germany
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13
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Association between concurrent use of diltiazem and DOACs and risk of bleeding in atrial fibrillation patients. J Interv Card Electrophysiol 2022; 66:629-635. [PMID: 36149579 DOI: 10.1007/s10840-022-01355-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/20/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Diltiazem is a commonly used medication in patients with atrial fibrillation (AF) with potential for a drug-drug interaction (DDI) with direct oral anticoagulants (DOACs). We aimed to assess the risk of major bleeding after co-prescription of diltiazem and DOACs among adults with AF. METHODS We conducted a population-based, nested case-control study in Ontario, Canada. The study population included all patients with AF > 66 years on a DOAC between April 1, 2011, and March 31, 2018. Cases were patients admitted with major bleeding (index date). Each case was matched to two controls. We categorized exposure to diltiazem before the index date as: (a) current users (diltiazem use within 7 days); (b) recent users (diltiazem use within 8 to 90 days); and (c) unexposed (no diltiazem prescription or diltiazem prescription > 90 days before index date). Conditional logistic regression models were used to examine the association between bleeding and diltiazem co-prescription. RESULTS Among 86,679 AF patients on a DOAC, the median age of AF patients was 80 years (interquartile range 75-85); 48.3% were women. We identified 2,766 cases (3.2%) who were hospitalized with major bleeding. After multivariable adjustment, there was a significant association between major bleeding and current use of diltiazem (adjusted odds ratio (aOR) 1.37; 95% confidence interval (CI) 1.08-1.73, p < 0.009) but no significant association between major bleeding and recent use of diltiazem (aOR 1.19, 95% CI 0.99-1.42, p = 0.06) as compared with the unexposed group. CONCLUSIONS Current use of diltiazem was associated with major bleeding among AF patients receiving a DOAC.
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14
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Chadha A, Guirguis M, Bungard TJ. DOAC drug interactions management resource. Can Pharm J (Ott) 2022; 155:315-325. [PMID: 36386604 PMCID: PMC9647398 DOI: 10.1177/17151635221116100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Micheal Guirguis
- Faculty of Pharmacy and Pharmaceutical Sciences
- Department of Medicine, University of Alberta and Pharmacy Services, Drug Utilization and Stewardship, Alberta Health Services, Edmonton, Alberta
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15
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Complexity and clinical significance of drug-drug interactions (DDIs) in oncology: challenging issues in the care of patients regarding cancer-associated thrombosis (CAT). Support Care Cancer 2022; 30:8559-8573. [PMID: 35932318 PMCID: PMC9512854 DOI: 10.1007/s00520-022-07235-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 06/14/2022] [Indexed: 11/07/2022]
Abstract
Cancer patients have an increased risk of developing venous thromboembolic events. Anticoagulation management includes prophylactic or therapeutic doses of low molecular weight heparins (LMWHs) or direct oral anticoagulants (DOACs). However, the management of thrombosis in patients with cancer is complex due to various individual and disease-related factors, including drug–drug interactions (DDIs). Furthermore, DDIs may impact both, cancer and venous thrombosis, treatment effectiveness and safety; their relevance is highlighted by the advances in cancer therapeutics. Given that these new oncology drugs are extensively used, more attention should be given to monitoring potential DDIs to minimize risks. Recognition of DDIs is of utmost importance in an era of rapid developments in cancer treatments and introduction of novel treatments and protocols. When managing cancer-associated thrombosis (CAT), the concomitant use of a DOAC and a moderate or strong modulator (inhibitor or inducer) of CYP3A4 or a P-glycoprotein (P-gp) is most likely to be associated with significant DDIs. Therefore, LMWHs remain the first-line option for the long-term management of CAT under these circumstances and physicians must consider utilizing LMWHs as first line. This review describes the risk of DDIs and their potential impact and outcomes in patients with cancer associated thrombosis (CAT) receiving anticoagulation.
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16
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Mar PL, Gopinathannair R, Gengler BE, Chung MK, Perez A, Dukes J, Ezekowitz MD, Lakkireddy D, Lip GYH, Miletello M, Noseworthy PA, Reiffel J, Tisdale JE, Olshansky B. Drug Interactions Affecting Oral Anticoagulant Use. Circ Arrhythm Electrophysiol 2022; 15:e007956. [PMID: 35622425 PMCID: PMC9308105 DOI: 10.1161/circep.121.007956] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Oral anticoagulants (OACs) are medications commonly used in patients with atrial fibrillation and other cardiovascular conditions. Both warfarin and direct oral anticoagulants are susceptible to drug-drug interactions (DDIs). DDIs are an important cause of adverse drug reactions and exact a large toll on the health care system. DDI for warfarin mainly involve moderate to strong inhibitors/inducers of cytochrome P450 (CYP) 2C9, which is responsible for the elimination of the more potent S-isomer of warfarin. However, inhibitor/inducers of CYP3A4 and CYP1A2 may also cause DDI with warfarin. Recognition of these precipitating agents along with increased frequency of monitoring when these agents are initiated or discontinued will minimize the impact of warfarin DDI. Direct oral anticoagulants are mainly affected by medications strongly affecting the permeability glycoprotein (P-gp), and to a lesser extent, strong CYP3A4 inhibitors/inducers. Dabigatran and edoxaban are affected by P-gp modulation. Strong inducers of CYP3A4 or P-gp should be avoided in all patients taking direct oral anticoagulant unless previously proven to be otherwise safe. Simultaneous strong CYP3A4 and P-gp inhibitors should be avoided in patients taking apixaban and rivaroxaban. Concomitant antiplatelet/anticoagulant use confers additive risk for bleeding, but their combination is unavoidable in many cases. Minimizing duration of concomitant anticoagulant/antiplatelet therapy as indicated by evidence-based clinical guidelines is the best way to reduce the risk of bleeding.
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Affiliation(s)
- Philip L Mar
- Division of Cardiology, Department of Medicine, St. Louis University, MO (P.L.M., A.P.)
| | | | - Brooke E Gengler
- Department of Pharmacy, Saint Louis University Hospital, MO (B.E.G.)
| | - Mina K Chung
- Department of Cardiovascular Medicine, Heart, Vascular & Thoracic Institute (M.K.C.)
| | - Arturo Perez
- Division of Cardiology, Department of Medicine, St. Louis University, MO (P.L.M., A.P.)
| | | | - Michael D Ezekowitz
- Lankenau Heart Institute, Bryn Mawr Hospital & Sidney Kimmel Medical College, Wynnewood, PA (M.D.E.)
| | | | - Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science, University of Liverpool & Liverpool Heart & Chest Hospital, United Kingdom (G.Y.H.L.).,Department of Clinical Medicine, Aalborg, Denmark (G.Y.H.L.)
| | | | - Peter A Noseworthy
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN (P.A.N.)
| | - James Reiffel
- Division of Cardiology, Department of Medicine, Columbia University, New York (J.R.)
| | - James E Tisdale
- College of Pharmacy, Purdue University (J.E.T.).,School of Medicine, Indiana University, Indianapolis (J.E.T.)
| | - Brian Olshansky
- Division of Cardiology, Department of Medicine, University of Iowa, Iowa City (B.O.)
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17
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Wang TF. Drug-drug interactions: Implications for anticoagulation, with focus in patients with cancer. Thromb Res 2022; 213 Suppl 1:S66-S71. [DOI: 10.1016/j.thromres.2021.11.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/19/2021] [Accepted: 11/24/2021] [Indexed: 12/31/2022]
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18
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Yhim HY. Challenging issues in the management of cancer-associated venous thromboembolism. Blood Res 2022; 57:44-48. [PMID: 35483925 PMCID: PMC9057672 DOI: 10.5045/br.2022.2022025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/02/2022] [Indexed: 11/17/2022] Open
Abstract
Venous thromboembolism (VTE) is a common complication among patients with cancer and is associated with delays in underlying cancer treatment and increases in morbidity and mortality. Acute and long-term treatments with low-molecular-weight-heparin (LMWH) have been recommended as a standard of care for patients with cancer with VTE for the past 20 years. Direct oral anticoagulants (DOACs) have recently emerged as a new therapeutic modality for cancer-associated VTE because of the convenience of oral administration and rapid onset of action. Our knowledge regarding DOACs for cancer-associated VTD has expanded in recent years. Thus, this study aimed to review recent major pivotal trials comparing DOACs with LMWH for managing cancer-associated VTE. Moreover, a recently updated understanding of DOACs in the treatment of cancer-associated VTE in specific challenging situations is presented.
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Affiliation(s)
- Ho-Young Yhim
- Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju, Korea
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19
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Jiang F, Guo CG, Leung WK. Letter: the hidden reasons of long-term risk of upper gastrointestinal bleeding after Helicobacter pylori eradication-authors' reply. Aliment Pharmacol Ther 2022; 55:374-375. [PMID: 35040170 DOI: 10.1111/apt.16746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Fang Jiang
- Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Chuan-Guo Guo
- Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Wai K Leung
- Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
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20
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Yang H, Hu B. Letter: the hidden reasons of long-term risk of upper gastrointestinal bleeding after Helicobacter pylori eradication. Aliment Pharmacol Ther 2022; 55:372-373. [PMID: 35040165 DOI: 10.1111/apt.16736] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Hang Yang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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21
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Ahmed H, Whitaker H, Farewell D, Hippisley-Cox J, Noble S. Respiratory tract infection and risk of bleeding in oral anticoagulant users: self-controlled case series. BMJ 2021; 375:e068037. [PMID: 34933893 PMCID: PMC8689396 DOI: 10.1136/bmj-2021-068037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To estimate the association between untreated, community acquired, respiratory tract infections and bleeding in oral anticoagulant users. DESIGN Self-controlled case series. SETTING General practices in England contributing data to the Clinical Practice Research Datalink GOLD. PARTICIPANTS 1208 adult users of warfarin or direct oral anticoagulants with a general practice or hospital admission record of a bleeding event between January 2010 and December 2019, and a general practice record of a consultation for a community acquired respiratory tract infection for which immediate antibiotics were not prescribed (that is, untreated). MAIN OUTCOME MEASURES Relative incidence of major bleeding and clinically relevant non-major bleeding in the 0-14 days after an untreated respiratory tract infection, compared to unexposed time periods. RESULTS Of 1208 study participants, 58% (n=701) were male, median age at time of first bleed was 79 years (interquartile range 72-85), with a median observation period of 2.4 years (interquartile range 1.3-3.8). 292 major bleeds occurred during unexposed time periods and 41 in the 0-14 days after consultation for a respiratory tract infection. 1003 clinically relevant non-major bleeds occurred during unexposed time periods and 81 in the 0-14 days after consultation for a respiratory tract infection. After adjustment for age, season, and calendar year, the relative incidence of major bleeding (incidence rate ratio 2.68, 95% confidence interval 1.83 to 3.93) and clinically relevant non-major bleeding (2.32, 1.82 to 2.94) increased in the 0-14 days after an untreated respiratory tract infection. Findings were robust to several sensitivity analyses and did not differ by sex or type of oral anticoagulant. CONCLUSIONS This study observed a greater than twofold increase in the risk of bleeding during the 0-14 days after an untreated respiratory tract infection. These findings have potential implications for how patients and clinicians manage oral anticoagulant use during an acute intercurrent illness and warrant further investigation into the potential risks and how they might be mitigated.
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Affiliation(s)
- Haroon Ahmed
- Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK
| | | | - Daniel Farewell
- Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK
| | - Julia Hippisley-Cox
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Simon Noble
- Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK
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22
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Hill K, Sucha E, Rhodes E, Bota S, Hundemer GL, Clark EG, Canney M, Harel Z, Wang TF, Carrier M, Wijeysundera HC, Knoll G, Sood MM. Amiodarone, verapamil, or diltiazem use with direct oral anticoagulants and the risk of hemorrhage in older adults. CJC Open 2021; 4:315-323. [PMID: 35386137 PMCID: PMC8978070 DOI: 10.1016/j.cjco.2021.11.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/03/2021] [Indexed: 12/26/2022] Open
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23
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Oshima K, Baba H, Kanamori H, Aoyagi T, Tokuda K, Kaku M. Azithromycin: A promising treatment option for Mycobacterium avium complex pulmonary disease in case of intolerance to clarithromycin. J Clin Tuberc Other Mycobact Dis 2021; 25:100274. [PMID: 34584985 PMCID: PMC8452753 DOI: 10.1016/j.jctube.2021.100274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Macrolides are invaluable for the treatment of MPD. Clarithromycin therapy for MPD can cause severe side effects. Azithromycin could be a good alternative to clarithromycin for the treatment of MPD.
Macrolide-based combination chemotherapy is recommended for the treatment of Mycobacterium avium complex (MAC) pulmonary disease (MPD). The susceptibility of the MAC to macrolide antibiotics (MAs) determines the efficacy of treatment and clinical course of MPD. However, MAs cause several adverse effects, resulting in the discontinuation of macrolide-based combination chemotherapy. We encountered two women aged 65 years and 66 years diagnosed with MPD based on bronchoscopic examinations. They were initially treated with clarithromycin-based combination chemotherapy. However, neither patient could continue with chemotherapy owing to adverse events such as rash and edema. We switched clarithromycin with azithromycin, and the patients were able to continue chemotherapy without adverse events. Both patients completed their treatment successfully. Azithromycin, which also belongs to the class of MAs, can be a promising therapeutic option for MPD in case of clarithromycin intolerance.
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Affiliation(s)
- Kengo Oshima
- Department of Infectious Diseases, Internal Medicine, Tohoku University Graduate School of Medicine, Miyagi 980-8574, Japan.,Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Miyagi 980-8575, Japan
| | - Hiroaki Baba
- Department of Infectious Diseases, Internal Medicine, Tohoku University Graduate School of Medicine, Miyagi 980-8574, Japan.,Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Miyagi 980-8575, Japan
| | - Hajime Kanamori
- Department of Infectious Diseases, Internal Medicine, Tohoku University Graduate School of Medicine, Miyagi 980-8574, Japan.,Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Miyagi 980-8575, Japan.,Division of Infection Control, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| | - Tetsuji Aoyagi
- Department of Infectious Diseases, Internal Medicine, Tohoku University Graduate School of Medicine, Miyagi 980-8574, Japan.,Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Miyagi 980-8575, Japan
| | - Koichi Tokuda
- Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Miyagi 980-8575, Japan.,Division of Infection Control, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| | - Mitsuo Kaku
- Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Miyagi 980-8575, Japan.,Department of Infectious Disease, Tohoku Medical and Pharmaceutical University, 1-15-1, Fukumuro, Miyagino-ku, Sendai, Miyagi 983-8565, Japan
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24
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Falanga A, Gal GL, Carrier M, Abdel-Razeq H, Ay C, Martin AJM, Rocha ATC, Agnelli G, Elalamy I, Brenner B. Management of Cancer-Associated Thrombosis: Unmet Needs and Future Perspectives. TH OPEN 2021; 5:e376-e386. [PMID: 34485812 PMCID: PMC8407937 DOI: 10.1055/s-0041-1736037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 06/29/2021] [Indexed: 12/28/2022] Open
Abstract
Patients with cancer are at a high risk of symptomatic venous thromboembolism (VTE), which is a common cause of morbidity and mortality in this patient population. Increased risk of recurrent VTE and bleeding complications are two major challenges associated with therapeutic anticoagulation in these patients. Long-term therapy with low-molecular-weight heparins (LMWHs) has been the standard of care for the treatment of cancer-associated VTE given its favorable risk–benefit ratio in comparison with vitamin K antagonists. Direct oral anticoagulants (DOACs), which offer the convenience of oral administration and have a rapid onset of action, have recently emerged as a new treatment option for patients with cancer-associated thrombosis (CT). Randomized clinical trial data with head-to-head comparisons between DOACs and LMWHs showed that overall, DOACs have a similar efficacy profile but a higher risk of bleeding was observed in some of these studies. This review aims to identify unmet needs in the treatment of CT. We discuss important considerations for clinicians tailoring anticoagulation (1) drug–drug interactions, (2) risk of bleeding (e.g., gastrointestinal bleeding), (3) thrombocytopenia, hematological malignancies, (4) metastatic or primary brain tumors, and (5) renal impairment. Additional research is warranted in several clinical scenarios to help clinicians on the best therapeutic approach.
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Affiliation(s)
- Anna Falanga
- Department of Medicine and Surgery, School of Medicine, University of Milano-Bicocca, Monza, Italy.,Department of Immunohematology and Transfusion Medicine, Thrombosis and Hemostasis Center, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Grégoire Le Gal
- Department of Medicine, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
| | - Marc Carrier
- Department of Medicine, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Cihan Ay
- Clinical Division of Haematology and Haemostaseology, Department of Internal Medicine, Comprehensive Cancer Center Vienna, Medical University of Vienna, Vienna, Austria.,Department of Obstetrics and Gynecology, I. M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Andrés J Muñoz Martin
- Medical Oncology Department, Hospital General Universitario Gregorio Marañón, Universidad Complutense, Madrid, Spain
| | - Ana Thereza Cavalcanti Rocha
- Departamento de Saúde da Família, Faculdade de Medicina da Bahia, Universidade Federal da Bahia - UFBA, Salvador, BA, Brazil
| | - Giancarlo Agnelli
- Internal Vascular and Emergency Medicine - Stroke Unit, University of Perugia, Perugia, Italy
| | - Ismail Elalamy
- Department of Obstetrics and Gynecology, I. M. Sechenov First Moscow State Medical University, Moscow, Russia.,Hematology and Thrombosis Centre, Hôpital Tenon, INSERM U938, Sorbonne Université, AP-HP, Paris, France
| | - Benjamin Brenner
- Department of Obstetrics and Gynecology, I. M. Sechenov First Moscow State Medical University, Moscow, Russia.,Department of Hematology, Rambam Health Care Campus, Haifa, Israel
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25
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Wang TF, Baumann Kreuziger L, Leader A, Spectre G, Lim MY, Gahagan A, Gangaraju R, Sanfilippo KM, Mallick R, Zwicker JI, Carrier M. Characteristics and outcomes of patients on concurrent direct oral anticoagulants and targeted anticancer therapies-TacDOAC registry: Communication from the ISTH SSC Subcommittee on Hemostasis and Malignancy. J Thromb Haemost 2021; 19:2068-2081. [PMID: 34327825 DOI: 10.1111/jth.15367] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/27/2021] [Accepted: 04/29/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Cancer patients are increasingly prescribed direct oral anticoagulants (DOACs) and targeted anticancer therapies, but limited data are available on the outcomes during concurrent use. OBJECTIVES We conducted an international registry through the Scientific and Standardization Committee of the ISTH to evaluate the characteristics, bleeding, and thrombotic outcomes in patients receiving concurrent DOACs and targeted anticancer therapies. PATIENTS/METHODS Patients receiving concurrent DOACs for venous thromboembolism (VTE) or atrial fibrillation and selected targeted anticancer therapies were followed for 6 months after the start of concurrent use. Data including patient and cancer characteristics, major bleeding, non-major bleeding events, and venous or arterial thromboses were collected. RESULTS Two hundred and two patients were included from six institutions in the United States and Israel. The most common malignancies were hematologic (N = 57, 28.2%), followed by breast (N = 50, 24.8%) and lung (N = 44, 21.8%). The most common anticancer therapies were epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase (ALK) inhibitors (N = 43, 21.3%), followed by Bruton's tyrosine kinase (BTK) inhibitors (N = 42, 20.8%) and palbociclib (N = 42, 20.8%). During follow-up, there were 9 major bleeding and 12 non-major bleeding events, corresponding to cumulative incidences of 4% (95% confidence interval [CI]: 2-8%) and 6% (95% CI: 3-10%), respectively. The cumulative incidence of major bleeding events was highest in BTK inhibitor users (10%). There were 3 VTE and 2 arterial thromboses, corresponding to cumulative incidences of 1.5% (95% CI: 0.4-4.0%) and 1.0% (95% CI: 0.2-3.3%), respectively. CONCLUSIONS In this cohort receiving concurrent DOACs and targeted anticancer therapies, the incidence of bleeding is higher compared to thrombosis, particularly with BTK inhibitors. Future larger prospective studies are needed.
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Affiliation(s)
- Tzu-Fei Wang
- Department of Medicine, The Ottawa Hospital and Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
| | - Lisa Baumann Kreuziger
- Department of Medicine, Medical College of Wisconsin, Blood Research Institute, Versiti, Milwaukee, Wisconsin, USA
| | - Avi Leader
- Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Galia Spectre
- Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ming Y Lim
- Division of Hematology and Hematologic Malignancies, Department of Internal Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Andrew Gahagan
- Division of Hematology/Oncology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Radhika Gangaraju
- Division of Hematology/Oncology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Kristen M Sanfilippo
- Division of Hematology, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Ranjeeta Mallick
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Jeffrey I Zwicker
- Division of Hemostasis and Thrombosis, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Marc Carrier
- Department of Medicine, The Ottawa Hospital and Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
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26
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Gronich N, Stein N, Muszkat M. Association Between Use of Pharmacokinetic-Interacting Drugs and Effectiveness and Safety of Direct Acting Oral Anticoagulants: Nested Case-Control Study. Clin Pharmacol Ther 2021; 110:1526-1536. [PMID: 34287842 PMCID: PMC9290518 DOI: 10.1002/cpt.2369] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/29/2021] [Indexed: 12/29/2022]
Abstract
Concomitant use of direct oral anticoagulants (DOACs) and medications with inhibition/induction effect on P-gp/CYP3A might increase risk of bleeding/treatment failure, respectively. We designed a nested case-control study within a Clalit cohort of patients with atrial fibrillation (AF) and a cohort of patients with venous thromboembolism, new users of a DOAC (January 1, 2010 to August 24, 2020). Propensity scores were constructed from demographic/clinical characteristics, and medications at cohort entry. Each case of: (i) serious bleeding event; (ii) stroke/systemic emboli (SE) in patients with AF; (iii) recurrent thromboembolism in patients with thromboembolism, was matched by age, sex, length of follow-up, year of cohort entry, DOAC type, and DOAC indication, to up to 20 controls. Within 89,284 patients with AF and venous thromboembolism and 126,302 patient-years of follow-up, there were 1,587 serious bleeding events. Risk of serious bleeding increased in association with concurrent prescription of P-gp/CYP3A4 inhibitors. Specifically, higher bleeding risk was associated with dabigatran-verapamil, rivaroxaban-verapamil, and rivaroxaban-amiodarone concurrent prescriptions: adjusted odds ratios (ORs) 2.29 (1.13-4.60), 2.18 (1.07-4.40), and 1.68 (1.14-2.49), respectively. There were 1,116 events of stroke/SE, in 79,302 DOAC-treated patients with AF and 118,124 patient-years of follow-up. Concomitant use of phenytoin, carbamazepine, valproic acid, or levetiracetam was associated with risk for stroke/SE: adjusted OR 2.18 (1.55-3.10). Risk of recurrent venous thromboembolism could not be assessed due to the low number of cases. Concurrent prescriptions of dabigatran or rivaroxaban with verapamil, and of rivaroxaban with amiodarone, are associated with increased risk for serious bleeding. Higher risk for stroke/SE in patients with AF is associated with concurrent prescriptions of DOACs with phenytoin, carbamazepine, valproic acid, or levetiracetam.
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Affiliation(s)
- Naomi Gronich
- Department of Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Clalit Health Services, Haifa, Israel.,Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Nili Stein
- Department of Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Clalit Health Services, Haifa, Israel
| | - Mordechai Muszkat
- Department of Medicine, Hadassah Hebrew University Medical Center, Jerusalem, Israel.,Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
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27
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Shurrab M, Koh M, Jackevicius CA, Qiu F, Conlon M, Caswell J, Tu K, Austin PC, Ko DT. Prescribing of two potentially interacting cardiovascular medications in atrial fibrillation patients on direct oral anticoagulants. IJC HEART & VASCULATURE 2021; 34:100788. [PMID: 33997261 PMCID: PMC8105295 DOI: 10.1016/j.ijcha.2021.100788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/04/2021] [Accepted: 04/19/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Amiodarone and diltiazem are commonly recommended cardiovascular medications for use in atrial fibrillation (AF) patients. They are known to have drug-drug interactions (DDIs) with direct oral anticoagulants (DOACs). We aimed to evaluate frequency of use of amiodarone or diltiazem among continuous users of DOACs in AF patients and to determine factors associated with their co-use. METHODS The study population included all AF patients with continuous DOAC use in Ontario, Canada, ≥66 years, from April 1, 2017 to March 31, 2018. Concurrent use of amiodarone or diltiazem was determined by identifying the presence of an overlapping prescription. Multivariable logistic regression models were used to identify predictors of amiodarone or diltiazem use. RESULTS In total, 5,390 AF patients, ≥66 years, with continuous DOAC use were identified. Amiodarone was co-prescribed in 6.4% patients and diltiazem was co-prescribed in 11.2% patients. Prior percutaneous coronary intervention (PCI) and coronary artery bypass surgery (CABG) were associated with significantly increased odds of amiodarone co-use (OR 2.51 [95% CI 1.54, 4.09], p = 0.0002 and OR 5.28 [95% CI 3.52, 7.93], p= <0.001, respectively). Patients with a heart failure (HF) history also had increased co-use of amiodarone (OR 2.05 [95% CI 1.57, 2.67], p < 0.001). The presence of chronic obstructive pulmonary disease (COPD) was associated with significantly increased odds of diltiazem co-use (OR 1.58 [95% CI 1.31, 1.9], p=<0.001). CONCLUSIONS Among AF patients with continuous DOAC use, amiodarone was co-prescribed in 1 in 16 patients and diltiazem was co-prescribed in 1 in 9 patients. Predictors such as history of HF, PCI, CABG or COPD help identify vulnerable populations at increased risk of DDIs.
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Affiliation(s)
- Mohammed Shurrab
- Cardiology Department, Health Sciences North, Northern Ontario School of Medicine, Laurentian University, Sudbury, Ontario, Canada
- Health Sciences North Research Institute, Sudbury, Ontario, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto and North, Ontario, Canada
| | - Maria Koh
- ICES, Toronto and North, Ontario, Canada
| | - Cynthia A. Jackevicius
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto and North, Ontario, Canada
- Veterans Administration Greater Los Angeles Healthcare System, Western University of Health Sciences, Los Angeles, CA, United States
| | - Feng Qiu
- ICES, Toronto and North, Ontario, Canada
| | - Michael Conlon
- Health Sciences North Research Institute, Sudbury, Ontario, Canada
- ICES, Toronto and North, Ontario, Canada
| | - Joseph Caswell
- Health Sciences North Research Institute, Sudbury, Ontario, Canada
- ICES, Toronto and North, Ontario, Canada
| | - Karen Tu
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- North York General Hospital, Toronto, Ontario, Canada
- Department of Family and Community Medicine, the University of Toronto, Toronto, Ontario, Canada
- University Health Network-Toronto Western Hospital Family Health Team, Toronto, Ontario, Canada
| | - Peter C. Austin
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto and North, Ontario, Canada
| | - Dennis T. Ko
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto and North, Ontario, Canada
- Division of Cardiology, Schulich Heart Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
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28
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Theophilus N, Bachuwa G. Rectus sheath haematoma due to drug-drug interaction. BMJ Case Rep 2021; 14:14/5/e242751. [PMID: 34031094 DOI: 10.1136/bcr-2021-242751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
| | - Ghassan Bachuwa
- Internal Medicine, Hurley Medical Center, Flint, Michigan, USA
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29
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Stöllberger C, Finsterer J. Update on drug interactions with non-vitamin-K-antagonist oral anticoagulants for stroke prevention in elderly patients. Expert Rev Clin Pharmacol 2021; 14:569-581. [PMID: 33757376 DOI: 10.1080/17512433.2021.1908124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Introduction: We update the knowledge, since the last review in 2017, about drug-drug interactions (DDI) of non-vitamin-K-antagonist oral anticoagulants (NOAC) in patients ≥75 years.Areas covered: The literature was searched for: 'dabigatran,' 'rivaroxaban,' 'edoxaban,' or 'apixaban' and drugs, affecting platelet function, CYP3A4-, CYP2C9-, or P-Gp-activity. Pharmacodynamic DDI of NOAC with drugs affecting platelet function like nonsteroidal anti-inflammatory drugs and antiplatelet agents occur most frequently. Pharmacokinetic DDI with NOAC were found for 37 of 117 drugs. Reports about DDI with NOAC were found for 51% of P-gp-affecting, 38% for CYP2C9-affecting and 27% for CYP3A4-affecting drugs. Reports about DDI of cardiovascular drugs with NOAC were the most prevalent, followed by anti-infective and nervous system drugs. NOAC plasma levels were measured in retrospective and cohort studies and were associated with concomitant medication. Reports about DDI of NOAC were found in 71 patients ≥75 years.Expert opinion: The knowledge about DDI of NOAC in elderly patients is very limited. Studies should be carried out to investigate the role of drugs potentially interacting with NOAC, which until now have not been investigated. When studying DDI of NOAC, care should be taken to include elderly patients with impaired renal function and patients on polymedication.
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Affiliation(s)
- Claudia Stöllberger
- 2nd Medical Department with Cardiology and Intensive Care Medicine, Klinik Landstrasse, Wien, Austria
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30
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Identifying the Dominant Contribution of Human Cytochrome P450 2J2 to the Metabolism of Rivaroxaban, an Oral Anticoagulant. Cardiovasc Drugs Ther 2021; 36:121-129. [PMID: 33411110 DOI: 10.1007/s10557-020-07129-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/10/2020] [Indexed: 11/25/2022]
Abstract
PURPOSE Rivaroxaban, an oral anticoagulant, undergoes the metabolism mediated by human cytochrome P450 (CYP). The present study is to quantitatively analyze and compare the contributions of multiple CYPs in the metabolism of rivaroxaban to provide new information for medication safety. METHODS The metabolic stability of rivaroxaban in the presence of human liver microsomes (HLMs) and recombinant CYPs was systematically evaluated to estimate the participation of various CYP isoforms. Furthermore, the catalytic efficiency of CYP isoforms was compared via metabolic kinetic studies of rivaroxaban with recombinant CYP isoenzymes, as well as via CYP-specific inhibitory studies. Additionally, docking simulations were used to illustrate molecular interactions. RESULTS Multiple CYP isoforms were involved in the hydroxylation of rivaroxaban, with decreasing catalytic rates as follows: CYP2J2 > 3A4 > 2D6 > 4F3 > 1A1 > 3A5 > 3A7 > 2A6 > 2E1 > 2C9 > 2C19. Among the CYPs, 2J2, 3A4, 2D6, and 4F3 were the four major isoforms responsible for rivaroxaban metabolism. Notably, the intrinsic clearance of rivaroxaban catalyzed by CYP2J2 was nearly 39-, 64-, and 100-fold that catalyzed by CYP3A4, 2D6, and 4F3, respectively. In addition, rivaroxaban hydroxylation was inhibited by 41.1% in the presence of the CYP2J2-specific inhibitor danazol, which was comparable to the inhibition rate of 43.3% by the CYP3A-specific inhibitor ketoconazole in mixed HLMs. Furthermore, molecular simulations showed that rivaroxaban is principally bound to CYP2J2 by π-alkyl bonds, carbon-hydrogen bonds, and alkyl interactions. CONCLUSION CYP2J2 dominated the hydroxylation of rivaroxaban, which may provide new insight into clinical drug interactions involving rivaroxaban.
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31
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Wang TF, Billett HH, Connors JM, Soff GA. Approach to Cancer-Associated Thrombosis: Challenging Situations and Knowledge Gaps. Oncologist 2020; 26:e17-e23. [PMID: 33275323 DOI: 10.1002/onco.13570] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 09/21/2020] [Indexed: 11/10/2022] Open
Abstract
Malignancy is a significant risk factor for venous thromboembolism (VTE). It is estimated that up to 20% of patients with cancer may develop VTE at some time in their cancer journey. Cancer-associated VTE can lead to hospitalizations, morbidity, delayed cancer treatment, and mortality. The optimal prevention and management of cancer-associated thrombosis (CAT) is of utmost importance. Direct oral anticoagulants have been recommended as first-line therapy for VTE treatment in the general population and their efficacy has recently been demonstrated in the cancer population, leading to increased use. However, patients with cancer have unique challenges and comorbidities that can lead to increased risks and concerns with anticoagulation. Herein we will discuss commonly encountered challenges in patients with CAT, review available literature, and provide practice suggestions. IMPLICATIONS FOR PRACTICE: This article aims to specifically address cancer-associated thrombosis issues for which there is limited or absent evidence to guide best practice, for circumstances that pose unique challenges for clinicians, and for directions when the literature is conflicting. It reviews pertinent data for each selected topic and provides guidance for patient management based on the best available evidence and experiences from the panel.
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Affiliation(s)
- Tzu-Fei Wang
- Department of Medicine, University of Ottawa at The Ottawa Hospital and Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Henny H Billett
- Division of Hematology, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, New York, USA
| | - Jean M Connors
- Hematology Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gerald A Soff
- Hematology Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA
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