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Laporte S, Benhamou Y, Bertoletti L, Frère C, Hanon O, Couturaud F, Moustafa F, Mismetti P, Sanchez O, Mahé I. [Translation into French and republication of: "Management of cancer-associated thromboembolism in vulnerable population"]. Rev Med Interne 2024:S0248-8663(24)00581-2. [PMID: 38789323 DOI: 10.1016/j.revmed.2024.05.019] [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: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 05/26/2024]
Abstract
Although all patients with cancer-associated thrombosis (CAT) have a high morbidity and mortality risk, certain groups of patients are particularly vulnerable. This may expose the patient to an increased risk of thrombotic recurrence or bleeding (or both), as the benefit-risk ratio of anticoagulant treatment may be modified. Treatment thus needs to be chosen with care. Such vulnerable groups include older patients, patients with renal impairment or thrombocytopenia, and underweight and obese patients. However, these patient groups are poorly represented in clinical trials, limiting the available data on which treatment decisions can be based. Meta-analysis of data from randomised clinical trials suggests that the relative treatment effect of direct oral factor Xa inhibitors (DXIs) and low molecular weight heparin (LMWH) with respect to major bleeding could be affected by advanced age. No evidence was obtained for a change in the relative risk-benefit profile of DXIs compared to LMWH in patients with renal impairment or of low body weight. The available, albeit limited, data do not support restricting the use of DXIs in patients with TAC on the basis of renal impairment or low body weight. In older patients, age is not itself a critical factor for choice of treatment, but frailty is such a factor. Patients over 70 years of age with CAT should undergo a systematic frailty evaluation before choosing treatment and modifiable bleeding risk factors should be addressed. In patients with renal impairment, creatine clearance should be assessed and monitored regularly thereafter. In patients with an eGFR less than 30mL/min/1.72m2, the anticoagulant treatment may need to be adapted. Similarly, platelet count should be assessed prior to treatment and monitored regularly. In patients with grade 3-4, thrombocytopenia (less than 50,000platelets/μL) treatment with a LMWH at a reduced dose should be considered. For patients with CAT and low body weight, standard anticoagulant treatment recommendations are appropriate, whereas in obese patients, apixaban may be preferred.
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Affiliation(s)
- S Laporte
- Unité de recherche clinique, innovation et pharmacologie, hôpital Nord, CHU de Saint-Étienne, Sainbiose Inserm, université Jean-Monnet, 42000 Saint-Étienne, France; F-CRIN INNOVTE network, Saint-Étienne, France.
| | - Y Benhamou
- F-CRIN INNOVTE network, Saint-Étienne, France; Service de médecine interne, CHU Charles-Nicolle, université de Rouen Normandie, Inserm U1096, Normandie université, Rouen, France
| | - L Bertoletti
- F-CRIN INNOVTE network, Saint-Étienne, France; Service de médecine vasculaire et thérapeutique, équipe dysfonction vasculaire et hémostase, CHU de Saint-Étienne, Inserm UMR1059, université Jean-Monnet, Inserm CIC-1408, Saint-Étienne, France
| | - C Frère
- Inserm UMRS 1166, GRC 27 Greco, DMU BioGeMH, hôpital de la Pitié-Salpêtrière, Assistance publique-Hôpitaux de Paris, Sorbonne université, Paris, France
| | - O Hanon
- Service de gérontologie, hôpital Broca, AP-HP, EA 4468, université de Paris Cité, Paris, France
| | - F Couturaud
- F-CRIN INNOVTE network, Saint-Étienne, France; Département de médecine interne, médecine vasculaire et pneumologie, CHU de Brest, Inserm U1304-Getbo, université de Brest, Brest, France
| | - F Moustafa
- F-CRIN INNOVTE network, Saint-Étienne, France; Département urgence, Inrae, UNH, hôpital de Clermont-Ferrand, université Clermont-Auvergne, Clermont-Ferrand, France
| | - P Mismetti
- F-CRIN INNOVTE network, Saint-Étienne, France; Service de médecine vasculaire et thérapeutique, hôpital Nord, CHU de Saint-Étienne, Saint-Étienne, France
| | - O Sanchez
- F-CRIN INNOVTE network, Saint-Étienne, France; Innovations thérapeutiques en hémostase, université Paris Cité, Inserm UMR S1140, Paris, France; Service de pneumologie et de soins intensifs, hôpital européen Georges-Pompidou, AP-HP, Paris, France
| | - I Mahé
- F-CRIN INNOVTE network, Saint-Étienne, France; Innovations thérapeutiques en hémostase, université Paris Cité, Inserm UMR S1140, Paris, France; Service de médecine interne, hôpital Louis-Mourier, AP-HP, Colombes, France
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2
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Sperry JD, Loeb A, Smith MJ, Brighton TB, Ehret JA, Fermo JD, Gentili ME, Lancaster JW, Mazur JN, Spezzano K, Szwak JA. Retrospective, multicenter analysis of the safety and effectiveness of direct oral anticoagulants for the treatment of venous thromboembolism in obesity. J Thromb Thrombolysis 2024; 57:603-612. [PMID: 38409303 DOI: 10.1007/s11239-024-02955-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/04/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND Direct oral anticoagulants (DOACs) are the preferred treatment for venous thromboembolism (VTE). However, DOAC use in patients with a BMI greater than 40 kg/m2 has not been well studied despite the growing prevalence of obesity, and current literature is often underpowered. METHODS This multicenter, retrospective, observational study evaluated patients 18 years and older who received DOACs for acute VTE treatment. Patients receiving DOACs for recurrent VTE or for failure of another agent were excluded. The primary efficacy outcome was recurrent VTE and the primary safety outcome was major bleeding within 12 months (or one month after stopping anticoagulation therapy). A propensity score analysis was performed to balance patient characteristics and evaluate the primary endpoints by BMI group. Time-to-event outcomes were analyzed using weighted Kaplan-Meier curves. RESULTS There were 165 patients with a BMI of at least 40 kg/m2 and 320 patients with a BMI less than 40 kg/m2. The majority received apixaban (373, 77%). Recurrent VTE occurred in 5 (3.0%) and 13 (4.1%) of patients in the higher and lower BMI groups, respectively (adjusted OR: 0.66; 95% CI: 0.16-2.69). Major bleeding occurred in 5 (3.0%) and 15 (4.7%) of patients in the higher and lower BMI groups, respectively (adjusted OR: 1.19; 95% CI: 0.36-3.92). CONCLUSION There was no significant difference in VTE recurrence or major bleeding related to BMI among patients treated with DOACs. This study showed that DOACs may be a safe and effective VTE treatment option in patients with obesity.
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Affiliation(s)
- Jeffrey D Sperry
- UC Health Memorial Hospital, Department of Pharmacy, Colorado Springs, CO, USA
| | - Aletha Loeb
- Department of Pharmacy, University of California, Davis, Sacramento, CA, USA
| | - Melissa J Smith
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Tessa B Brighton
- Department of Pharmacy, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Julie A Ehret
- Department of Pharmacy Services, Medical University of South Carolina, Charleston, SC, USA
| | - Joli D Fermo
- Department of Pharmacy Services, Medical University of South Carolina, Charleston, SC, USA
| | - Morgan E Gentili
- Department of Pharmacy Services, Beth Israel Lahey Health, Burlington, MA, USA
| | - Jason W Lancaster
- School of Pharmacy and Pharmaceutical Sciences, Northeastern University, Boston, MA, USA
| | - Jennifer N Mazur
- Department of Pharmacy Services, Medical University of South Carolina, Charleston, SC, USA
| | - Katherine Spezzano
- Department of Pharmacy, University of Kentucky HealthCare, Lexington, KY, USA
| | - Jennifer A Szwak
- Department of Pharmacy, The Johns Hopkins Hospital, Baltimore, MD, USA.
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3
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Martin KA, Zakai NA. Venous Thromboembolism and Obesity: Moving Toward a Better Understanding of the Population-Attributable Risk. Thromb Haemost 2024; 124:250-252. [PMID: 37813374 DOI: 10.1055/s-0043-1776010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Affiliation(s)
- Karlyn A Martin
- Division of Hematology/Oncology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
- Department of Medicine, University of Vermont Larner College of Medicine, Burlington, Vermont, United States
| | - Neil A Zakai
- Department of Medicine, University of Vermont Larner College of Medicine, Burlington, Vermont, United States
- Department of Pathology and Laboratory Medicine, University of Vermont Larner College of Medicine, Burlington, Vermont, United States
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4
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Nwanosike EM, Merchant HA, Sunter W, Ansari MA, Conway BR, Hasan SS. Direct oral anticoagulants and the risk of adverse clinical outcomes among patients with different body weight categories: a large hospital-based study. Eur J Clin Pharmacol 2024; 80:163-173. [PMID: 37978999 PMCID: PMC10781787 DOI: 10.1007/s00228-023-03593-2] [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] [Received: 06/12/2023] [Accepted: 11/05/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVE Through predictable pharmacokinetics-including a convenient fixed-dose regimen, direct oral anticoagulants (DOACs) are preferred over previous treatments in anticoagulation for various indications. However, the association between higher body weight and the risk of adverse consequences is not well studied among DOAC users. We aim to explore the association of body weight and adverse clinical outcomes in DOAC users. METHODS A total of 97,413 anonymised DOAC users in a tertiary care setting were identified following structured queries on the electronic health records (EHRs) to extract the feature-rich anonymised dataset. The prepared dataset was analysed, and the features identified with machine learning (ML) informed the adjustments of covariates in the multivariate regression analysis to examine the association. Kaplan-Meier analysis was performed to evaluate the mortality benefits of DOACs. RESULTS Among DOAC users, the odds of adverse clinical outcomes, such as clinically relevant non-major bleeding (CRNMB), ischaemic stroke, all-cause mortality, and prolonged hospital stay, were lower in patients with overweight, obesity, or morbid obesity than in patients with normal body weight. The odds of ischaemic stroke (OR 0.42, 95% CI: 0.36-0.88, p = 0.001) and all-cause mortality (OR 0.87, 95% CI: 0.81-0.95, p = 0.001) were lower in patients with morbid obesity than in patients with normal body weight. In the Kaplan-Meier analysis, apixaban was associated with a significantly lower rate of mortality overall and in obesity and overweight subgroups than other DOACs (p < 0.001). However, rivaroxaban performed better than apixaban in the morbid obesity subgroup (p < 0.001). CONCLUSION This study shows the positive effects of DOAC therapy on clinical outcomes, particularly in patients with high body weight. However, this still needs validation by further studies particularly among patients with morbid obesity.
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Affiliation(s)
- Ezekwesiri Michael Nwanosike
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK
| | - Hamid A Merchant
- Department for Bioscience, School of Health, Sport and Bioscience, the University of East London, London, E16 2RD, UK
| | - Wendy Sunter
- Calderdale and Huddersfield Pharmacy Services, Anticoagulation Services, Calderdale and Huddersfield NHS Foundation Trust Hospitals, Lindley, Huddersfield, HD3 3EA, UK
| | - Muhammad Ayub Ansari
- School of Computing and Engineering, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK
| | - Barbara R Conway
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK
| | - Syed Shahzad Hasan
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
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Laporte S, Benhamou Y, Bertoletti L, Frère C, Hanon O, Couturaud F, Moustafa F, Mismetti P, Sanchez O, Mahé I. Management of cancer-associated thromboembolism in vulnerable population. Arch Cardiovasc Dis 2024; 117:45-59. [PMID: 38065754 DOI: 10.1016/j.acvd.2023.11.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 12/27/2023]
Abstract
Although all patients with cancer-associated thrombosis (CAT) have a high morbidity and mortality risk, certain groups of patients are particularly vulnerable. This may expose the patient to an increased risk of thrombotic recurrence or bleeding (or both), as the benefit-risk ratio of anticoagulant treatment may be modified. Treatment thus needs to be chosen with care. Such vulnerable groups include older patients, patients with renal impairment or thrombocytopenia, and underweight and obese patients. However, these patient groups are poorly represented in clinical trials, limiting the available data, on which treatment decisions can be based. Meta-analysis of data from randomised clinical trials suggests that the relative treatment effect of direct oral factor Xa inhibitors (DXIs) and low molecular weight heparin (LMWH) with respect to major bleeding could be affected by advanced age. No evidence was obtained for a change in the relative risk-benefit profile of DXIs compared to LMWH in patients with renal impairment or of low body weight. The available, albeit limited, data do not support restricting the use of DXIs in patients with CAT on the basis of renal impairment or low body weight. In older patients, age is not itself a critical factor for choice of treatment, but frailty is such a factor. Patients over 70 years of age with CAT should undergo a systematic frailty evaluation before choosing treatment and modifiable bleeding risk factors should be addressed. In patients with renal impairment, creatine clearance should be assessed and monitored regularly thereafter. In patients with an eGFR<30mL/min/1.72m2, the anticoagulant treatment may need to be adapted. Similarly, platelet count should be assessed prior to treatment and monitored regularly. In patients with grade 3-4, thrombocytopenia (<50,000 platelets/μL) treatment with a LMWH at a reduced dose should be considered. For patients with CAT and low body weight, standard anticoagulant treatment recommendations are appropriate, whereas in obese patients, apixaban may be preferred.
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Affiliation(s)
- Silvy Laporte
- SAINBIOSE Inserm, unité de recherche clinique, innovation et pharmacologie, hôpital Nord, université Jean-Monnet, CHU de Saint-Étienne, Saint-Étienne, France; F-CRIN INNOVTE network, Saint-Étienne, France.
| | - Ygal Benhamou
- UNI Rouen U1096, service de médecine interne, Normandie université, CHU Charles-Nicolle, Rouen, France; F-CRIN INNOVTE network, Saint-Étienne, France
| | - Laurent Bertoletti
- Service de médecine vasculaire et thérapeutique, CHU de Saint-Étienne, INSERM, UMR1059, Equipe Dysfonction Vasculaire et Hémostase, Université Jean-Monnet, INSERM, CIC-1408, CHU Saint-Étienne, Saint-Étienne, France; F-CRIN INNOVTE network, Saint-Étienne, France
| | - Corinne Frère
- Inserm UMRS 1166, GRC 27 GRECO, DMU BioGeMH, hôpital de la Pitié-Salpêtrière, Sorbonne université, Assistance publique-Hôpitaux de Paris, Paris, France
| | - Olivier Hanon
- Service de Gérontologie, hôpital Broca, AP-HP, EA 4468, Université de Paris Cité, Paris, France
| | - Francis Couturaud
- Inserm U1304 - GETBO, département de médecine interne, médecine vasculaire et pneumologie, université de Brest, CHU de Brest, Brest, France; F-CRIN INNOVTE network, Saint-Étienne, France
| | - Farès Moustafa
- Inrae, UNH, département urgence, hôpital de Clermont-Ferrand, université Clermont Auvergne, Clermont-Ferrand, France; F-CRIN INNOVTE network, Saint-Étienne, France
| | - Patrick Mismetti
- Service de Médecine Vasculaire et Thérapeutique, CHU Saint-Etienne, Hôpital Nord, Saint-Étienne, France; F-CRIN INNOVTE network, Saint-Étienne, France
| | - Olivier Sanchez
- Université Paris Cité, Inserm UMR S1140, innovations thérapeutiques en hémostase, Paris, France; Service de pneumologie et de soins intensifs, hôpital européen Georges-Pompidou, AP-HP, Paris, France; F-CRIN INNOVTE network, Saint-Étienne, France
| | - Isabelle Mahé
- Université Paris Cité, Inserm UMR S1140, innovations thérapeutiques en hémostase, Paris, France; Service de médecine interne, hôpital Louis-Mourier, AP-HP, Colombes, France; F-CRIN INNOVTE network, Saint-Étienne, France
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6
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Talerico R, Pola R, Klok FA, Huisman MV. Direct-Acting Oral Anticoagulants in patients at extremes of body weight: a review of pharmacological considerations and clinical implications. TH OPEN 2024; 8:e31-e41. [PMID: 38197017 PMCID: PMC10774013 DOI: 10.1055/s-0043-1776989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/16/2023] [Indexed: 01/11/2024] Open
Abstract
Patients at extremes of body weight are underrepresented in randomized controlled trials of direct-acting oral anticoagulants (DOACs). Therefore, their optimal anticoagulant treatment remains a topic of debate. The aim of this narrative review is to summarize the evidence on the pharmacokinetic and pharmacodynamic profile of DOACs for treating patients at extremes of body weight in venous thromboembolism (VTE) and in the prevention of cardioembolic stroke in nonvalvular atrial fibrillation (NVAF). A literature search was conducted in the main bibliographic databases, and the most relevant reviews and original articles on the topic were selected. Although data in these patient groups are limited, apixaban and rivaroxaban show a favorable pharmacokinetic and pharmacodynamic profile in obese VTE treatment and NVAF patients and, in the case of apixaban, also in underweight patients. In particular, these drugs demonstrated comparable efficacy and safety to standard therapy. Very few data were available for dabigatran and edoxaban; the latter drug was safer at a lower dose, mainly in underweight patients. Our findings are in line with the last International Society of Haemostasis and Thrombosis position paper and European Heart Rhythm Association 2021 practical guide, suggesting the use of apixaban and rivaroxaban in morbidly obese patients (>120 kg or body mass index ≥40 kg/m 2 ) and the reduced dosage of edoxaban in low-weight patients. Future studies should focus on large populations of patients at extremes of body weights to acquire more clinical and pharmacokinetic evidence on all available DOACs, especially those currently less investigated.
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Affiliation(s)
- Rosa Talerico
- Section of Internal Medicine and Thromboembolic Diseases, Department of Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
- IRCCS San Raffaele, Rome, Italy
| | - Roberto Pola
- Section of Internal Medicine and Thromboembolic Diseases, Department of Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Frederikus Albertus Klok
- Department of Medicine—Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, The Netherlands.
| | - Menno Volkert Huisman
- Department of Medicine—Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, The Netherlands.
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Mohseni Afshar Z, Tavakoli Pirzaman A, Hosseinzadeh R, Babazadeh A, Taghizadeh Moghadam MA, Miri SR, Sio TT, Sullman MJM, Barary M, Ebrahimpour S. Anticoagulant therapy in COVID-19: A narrative review. Clin Transl Sci 2023; 16:1510-1525. [PMID: 37326220 PMCID: PMC10499427 DOI: 10.1111/cts.13569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/24/2023] [Accepted: 05/27/2023] [Indexed: 06/17/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), can manifest itself in several ways, including coagulopathy and thrombosis. These complications can be the first and sometimes only manifestations of SARS-CoV-2 infection and can occur early or late in the course of the disease. However, these symptoms are more prevalent in hospitalized patients with venous thromboembolism, particularly those admitted to intensive care units. Moreover, various forms of arterial and venous thrombosis, or micro- or macro-vasculature embolisms, have been reported during the current pandemic. They have led to harmful consequences, such as neurological and cardiac events, nearly all resulting from the hypercoagulable state caused by this viral infection. The severe hypercoagulability observed in patients with COVID-19 accounts for most cases of the disease that become critical. Therefore, anticoagulants seem to be one of the most vital therapeutics for treating this potentially life-threatening condition. In the current paper, we present a thorough review of the pathophysiology of COVID-19-induced hypercoagulable state and the use of anticoagulants to treat SARS-CoV-2 infections in different patient groups, as well as their pros and cons.
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Affiliation(s)
- Zeinab Mohseni Afshar
- Clinical Research Development Center, Imam Reza HospitalKermanshah University of Medical SciencesKermanshahIran
| | | | | | - Arefeh Babazadeh
- Infectious Diseases and Tropical Medicine Research CenterHealth Research Institute, Babol University of Medical SciencesBabolIran
| | | | - Seyed Rouhollah Miri
- Cancer Research CenterCancer Institute of Iran, Tehran University of Medical ScienceTehranIran
| | - Terence T. Sio
- Department of Radiation OncologyMayo ClinicPhoenixArizonaUSA
| | - Mark J. M. Sullman
- Department of Social SciencesUniversity of NicosiaNicosiaCyprus
- Department of Life and Health SciencesUniversity of NicosiaNicosiaCyprus
| | - Mohammad Barary
- Student Research Committee, Virtual School of Medical Education and ManagementShahid Beheshti University of Medical SciencesTehranIran
| | - Soheil Ebrahimpour
- Infectious Diseases and Tropical Medicine Research CenterHealth Research Institute, Babol University of Medical SciencesBabolIran
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Potere N, Di Nisio M, Porreca E, Wang TF, Tagalakis V, Shivakumar S, Delluc A, Mallick R, Wells PS, Carrier M. Apixaban thromboprophylaxis in ambulatory patients with cancer and obesity: Insights from the AVERT trial. Thromb Res 2023; 226:82-85. [PMID: 37121015 DOI: 10.1016/j.thromres.2023.04.015] [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: 03/09/2023] [Revised: 04/09/2023] [Accepted: 04/17/2023] [Indexed: 05/02/2023]
Abstract
BACKGROUND The use of direct oral anticoagulants (DOACs) in obese patients is uncertain. It is unclear if body mass index (BMI) affects the safety and efficacy of DOACs for the primary prevention of venous thromboembolism (VTE) in high-risk ambulatory patients with cancer. We sought to determine the outcomes associated with the use of apixaban for the primary prevention of cancer-associated VTE according to BMI. METHODS The randomized, double-blinded, placebo-controlled AVERT trial evaluated apixaban thromboprophylaxis in intermediate-to-high risk ambulatory cancer patients receiving chemotherapy. For this post-hoc analysis, the primary efficacy and safety outcomes were objectively confirmed VTE and clinically relevant bleeding (major and clinically relevant non-major bleeding), respectively. Obesity was defined as BMI ≥30 kg/m2. RESULTS Among 574 patients randomized, 217 (37.8 %) patients had BMI ≥30 kg/m2. Obese patients were overall younger, more likely to be female, had higher creatinine clearance and hemoglobin, lower platelet count, and better ECOG performance status. Compared to placebo, apixaban thromboprophylaxis was associated with reduced VTE in both obese (hazard ratio [HR] 0.26; 95 % confidence interval [CI], 0.14-0.46; p < 0.0001) and non-obese (HR 0.54; 95%CI, 0.29-1.00; p = 0.049) patients. The HR for clinically relevant bleeding (apixaban vs. placebo) was numerically higher in obese (2.09; 95%CI, 0.96-4.51; p = 0.062) than non-obese subjects (1.23; 95%CI, 0.71-2.13; p = 0.46), but overall in line with the risks observed in the general trial population. CONCLUSIONS In the AVERT trial enrolling ambulatory cancer patients receiving chemotherapy, we found no substantial differences in the efficacy or safety of apixaban thromboprophylaxis across obese and non-obese subjects.
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Affiliation(s)
- Nicola Potere
- Department of Medicine and Ageing Sciences, "G. D'Annunzio" University, Chieti, Italy
| | - Marcello Di Nisio
- Department of Medicine and Ageing Sciences, "G. D'Annunzio" University, Chieti, Italy
| | - Ettore Porreca
- Department of Innovative Technologies in Medicine and Dentistry, "G. D'Annunzio" University, Chieti, Italy
| | - Tzu-Fei Wang
- Department of Medicine University of Ottawa, the Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Vicky Tagalakis
- Jewish General Hospital, Lady Davis Institute for Medical Research, McGill University, Montreal, Quebec, Canada
| | - Sudeep Shivakumar
- Department of Medicine, Dalhousie University, Nova Scotia Health, Halifax, Nova Scotia, Canada
| | - Aurélien Delluc
- Department of Medicine University of Ottawa, the Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Ranjeeta Mallick
- Ottawa Methods Center, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Phil S Wells
- Department of Medicine University of Ottawa, the Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Marc Carrier
- Department of Medicine University of Ottawa, the Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
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9
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Nwanosike EM, Sunter W, Ansari MA, Merchant HA, Conway B, Hasan SS. A Real-World Exploration into Clinical Outcomes of Direct Oral Anticoagulant Dosing Regimens in Morbidly Obese Patients Using Data-Driven Approaches. Am J Cardiovasc Drugs 2023; 23:287-299. [PMID: 36872389 DOI: 10.1007/s40256-023-00569-6] [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] [Accepted: 12/27/2022] [Indexed: 03/07/2023]
Abstract
INTRODUCTION The clinical outcomes of direct oral anticoagulant (DOAC) dosage regimens in morbid obesity are uncertain due to limited clinical evidence. This study seeks to bridge this evidence gap by identifying the factors associated with clinical outcomes following the dosing of DOACs in morbidly obese patients. METHOD A data-driven observational study was carried out using supervised machine learning (ML) models with a dataset extracted from electronic health records and preprocessed. Following 70%:30% partitioning of the overall dataset via stratified sampling, the selected ML classifiers (e.g., random forest, decision trees, bootstrap aggregation) were applied to the training dataset (70%). The outcomes of the models were evaluated against the test dataset (30%). Multivariate regression analysis explored the association between DOAC regimens and clinical outcomes. RESULTS A sample of 4,275 morbidly obese patients was extracted and analysed. The decision trees, random forest, and bootstrap aggregation classifiers achieved acceptable (excellent) values of precision, recall, and F1 scores in terms of their contribution to clinical outcomes. The length of stay, treatment days, and age were ranked highest for relevance to mortality and stroke. Among DOAC regimens, apixaban 2.5 mg twice daily ranked highest for its association with mortality, increasing the mortality risk by 43% (odds ratio [OR] 1.430, 95% confidence interval [CI] 1.181-1.732, p = 0.001). On the other hand, apixaban 5 mg twice daily reduced the odds of mortality by 25% (OR 0.751, 95% CI 0.632-0.905, p = 0.003) but increased the odds of stroke events. No clinically relevant non-major bleeding events occurred in this group. CONCLUSION Data-driven approaches can identify key factors associated with clinical outcomes following the dosing of DOACs in morbidly obese patients. This will help design further studies to explore well tolerated and effective DOAC doses for morbidly obese patients.
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Affiliation(s)
- Ezekwesiri Michael Nwanosike
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, HD1 3DH, Huddersfield, UK
| | - Wendy Sunter
- Anticoagulant Services, Calderdale and Huddersfield NHS Foundation Trust Hospital, Lindley, HD3 3EA, Huddersfield, UK
| | - Muhammad Ayub Ansari
- School of Computing and Engineering, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, West Yorkshire, UK
| | - Hamid A Merchant
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, HD1 3DH, Huddersfield, UK
| | - Barbara Conway
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, HD1 3DH, Huddersfield, UK
| | - Syed Shahzad Hasan
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, HD1 3DH, Huddersfield, UK.
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Liu J, Qiao X, Wu M, Wang H, Luo H, Zhang H, Chen Y, Sun J, Tang B. Strategies involving low-molecular-weight heparin for the treatment and prevention of venous thromboembolism in patients with obesity: A systematic review and meta-analysis. Front Endocrinol (Lausanne) 2023; 14:1084511. [PMID: 36967796 PMCID: PMC10031025 DOI: 10.3389/fendo.2023.1084511] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 02/13/2023] [Indexed: 03/29/2023] Open
Abstract
INTRODUCTION Recent studies have indicated that the dosage of LMWH in patients with specific weights may be controversial. Therefore, we conducted a meta-analysis to explore an appropriate dosage of LMWH for the prevention and treatment of venous thromboembolism (VTE) in patients with obesity. MATERIALS AND METHODS We searched the PubMed, EMBASE, and Cochrane Library databases up to July 23, 2022. Study selection, bias analysis, and information extraction were performed by three independent reviewers. The occurrence or recurrence of VTE and bleeding events were the primary outcomes we assessed. RESULTS Eleven studies (a total of 6266 patients) were included in the prevention group, and 6 studies (a total of 3225 patients) were included in the treatment group. For VTE prophylaxis, compared with the standard-dosage group, the high-dosage group had a lower incidence of VTE (OR: 0.47, 95% CI: 0.27-0.82, P=0.007) and a similar incidence of bleeding events (OR: 0.86, 95% CI: 0.69-1.08, P=0.020). For VTE therapy, compared to the standard-dosage group, the reduced-dosage group had a similar incidence of VTE recurrence (OR: 0.86, 95% CI: 0.11-6.84, P=0.89) but a lower incidence of bleeding events (OR: 0.30, 95% CI: 0.10-0.89, P=0.03). CONCLUSION In patients with obesity, increasing the dosage of LMWH is a more appropriate option for the prevention of VTE. Due to the limited evidence, reducing the therapeutic dosage of LMWH requires careful consideration. Larger-scale, well-designed randomized controlled trials are necessary. SYSTEMATIC REVIEW REGISTRATION https://www.crd.york.ac.uk/prospero/display_record.php?, identifier ID=CRD42022298128.
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Affiliation(s)
- Junjie Liu
- Vascular, Abdominal & Hernia Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xi Qiao
- Department of Clinical Medicine, The Second Clinical Medical College, Chongqing Medical University, Chongqing, China
| | - Mingdong Wu
- Vascular, Abdominal & Hernia Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Haiyang Wang
- Vascular, Abdominal & Hernia Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hailong Luo
- Vascular, Abdominal & Hernia Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Haolong Zhang
- Vascular, Abdominal & Hernia Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yikuan Chen
- Vascular, Abdominal & Hernia Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jianming Sun
- Vascular, Abdominal & Hernia Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Bo Tang
- Vascular, Abdominal & Hernia Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Bo Tang,
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Wang TF. The 5 most frequently asked questions about factor Xa inhibitors. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2022; 2022:515-521. [PMID: 36485108 PMCID: PMC9821165 DOI: 10.1182/hematology.2022000385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Direct oral anticoagulants (DOACs) are commonly used oral factor Xa inhibitors in recent years. However, in some special clinical situations, the appropriate use of these anticoagulants may be of concern. In this article, we address the 5 commonly asked questions regarding their use for the treatment of venous thromboembolism, including in the setting of obesity, renal impairment, gastrointestinal (GI) malignancy, catheter-related thrombosis, and drug-drug interactions. Data on the use of DOACs in the presence of significant obesity or renal failure are mainly observational. Some DOACs are shown to have an increased risk of bleeding in patients with unresected luminal GI malignancy but not others, so selection of appropriate patients is the key. Furthermore, literature on the use of DOACs for catheter-related thrombosis or when drug-drug interactions are of concern is limited, and more research is welcome.
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Affiliation(s)
- Tzu-Fei Wang
- Correspondence Tzu-Fei Wang, The Ottawa Hospital, General Campus, 501 Smyth Road, Box 201A, Ottawa, ON K1H 8L6, Canada; e-mail:
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