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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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Charpidou A, Gerotziafas G, Popat S, Araujo A, Scherpereel A, Kopp HG, Bironzo P, Massard G, Jiménez D, Falanga A, Kollias A, Syrigos K. Lung Cancer Related Thrombosis (LCART): Focus on Immune Checkpoint Blockade. Cancers (Basel) 2024; 16:450. [PMID: 38275891 PMCID: PMC10814098 DOI: 10.3390/cancers16020450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/10/2023] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
Cancer-associated thrombosis (CAT) is a common complication in lung cancer patients. Lung cancer confers an increased risk of thrombosis compared to other solid malignancies across all stages of the disease. Newer treatment agents, including checkpoint immunotherapy and targeted agents, may further increase the risk of CAT. Different risk-assessment models, such as the Khorana Risk Score, and newer approaches that incorporate genetic risk factors have been used in lung cancer patients to evaluate the risk of thrombosis. The management of CAT is based on the results of large prospective trials, which show similar benefits to low-molecular-weight heparins (LMWHs) and direct oral anticoagulants (DOACs) in ambulatory patients. The anticoagulation agent and duration of therapy should be personalized according to lung cancer stage and histology, the presence of driver mutations and use of antineoplastic therapy, including recent curative lung surgery, chemotherapy or immunotherapy. Treatment options should be evaluated in the context of the COVID-19 pandemic, which has been shown to impact the thrombotic risk in cancer patients. This review focuses on the epidemiology, pathophysiology, risk factors, novel predictive scores and management of CAT in patients with active lung cancer, with a focus on immune checkpoint inhibitors.
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Affiliation(s)
- Andriani Charpidou
- Third Department of Internal Medicine and Laboratory, Athens Medical School, National and Kapodistrian University of Athens, Sotiria General Hospital, 157 72 Athens, Greece; (A.K.)
| | - Grigorios Gerotziafas
- Assistance Publique-Hôpitaux de Paris, Thrombosis Center, Service D’Hématologie Biologique Hôpital Tenon, Sorbonne Université, 75005 Paris, France
| | - Sanjay Popat
- Royal Marsden Hospital, Institute of Cancer Research, London SW3 6JJ, UK
| | - Antonio Araujo
- Department of Medical Oncology, Centro Hospitalar Universitário do Porto, 4099-001 Porto, Portugal;
| | - Arnaud Scherpereel
- Department of Pulmonary and Thoracic Oncology, University of Lille, University Hospital (CHU), 59000 Lille, France;
| | - Hans-Georg Kopp
- Departments of Molecular Oncology and Thoracic Oncology, Robert-Bosch-Hospital Stuttgart, 70376 Stuttgart, Germany
| | - Paolo Bironzo
- Department of Oncology, San Luigi Gonzaga Hospital, University of Turin, 10124 Turin, Italy
| | - Gilbert Massard
- Department of Thoracic Surgery, Hôpitaux Robert Schuman, 2540 Luxembourg, Luxembourg
| | - David Jiménez
- Respiratory Department, Ramón y Cajal Hospital, Instituto Ramón y Cajal de Investigación Sanitaria IRYCIS, 28034 Madrid, Spain;
| | - Anna Falanga
- Department of Transfusion Medicine and Hematology, Hospital Papa Giovanni XXIII, University of Milan Bicocca, 24129 Bergamo, Italy
| | - Anastasios Kollias
- Third Department of Internal Medicine and Laboratory, Athens Medical School, National and Kapodistrian University of Athens, Sotiria General Hospital, 157 72 Athens, Greece; (A.K.)
| | - Konstantinos Syrigos
- Third Department of Internal Medicine and Laboratory, Athens Medical School, National and Kapodistrian University of Athens, Sotiria General Hospital, 157 72 Athens, Greece; (A.K.)
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Ko RE, Kim Z, Jeon B, Ji M, Chung CR, Suh GY, Chung MJ, Cho BH. Deep Learning-Based Early Warning Score for Predicting Clinical Deterioration in General Ward Cancer Patients. Cancers (Basel) 2023; 15:5145. [PMID: 37958319 PMCID: PMC10647448 DOI: 10.3390/cancers15215145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Cancer patients who are admitted to hospitals are at high risk of short-term deterioration due to treatment-related or cancer-specific complications. A rapid response system (RRS) is initiated when patients who are deteriorating or at risk of deteriorating are identified. This study was conducted to develop a deep learning-based early warning score (EWS) for cancer patients (Can-EWS) using delta values in vital signs. METHODS A retrospective cohort study was conducted on all oncology patients who were admitted to the general ward between 2016 and 2020. The data were divided into a training set (January 2016-December 2019) and a held-out test set (January 2020-December 2020). The primary outcome was clinical deterioration, defined as the composite of in-hospital cardiac arrest (IHCA) and unexpected intensive care unit (ICU) transfer. RESULTS During the study period, 19,739 cancer patients were admitted to the general wards and eligible for this study. Clinical deterioration occurred in 894 cases. IHCA and unexpected ICU transfer prevalence was 1.77 per 1000 admissions and 43.45 per 1000 admissions, respectively. We developed two models: Can-EWS V1, which used input vectors of the original five input variables, and Can-EWS V2, which used input vectors of 10 variables (including an additional five delta variables). The cross-validation performance of the clinical deterioration for Can-EWS V2 (AUROC, 0.946; 95% confidence interval [CI], 0.943-0.948) was higher than that for MEWS of 5 (AUROC, 0.589; 95% CI, 0.587-0.560; p < 0.001) and Can-EWS V1 (AUROC, 0.927; 95% CI, 0.924-0.931). As a virtual prognostic study, additional validation was performed on held-out test data. The AUROC and 95% CI were 0.588 (95% CI, 0.588-0.589), 0.890 (95% CI, 0.888-0.891), and 0.898 (95% CI, 0.897-0.899), for MEWS of 5, Can-EWS V1, and the deployed model Can-EWS V2, respectively. Can-EWS V2 outperformed other approaches for specificities, positive predictive values, negative predictive values, and the number of false alarms per day at the same sensitivity level on the held-out test data. CONCLUSIONS We have developed and validated a deep learning-based EWS for cancer patients using the original values and differences between consecutive measurements of basic vital signs. The Can-EWS has acceptable discriminatory power and sensitivity, with extremely decreased false alarms compared with MEWS.
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Affiliation(s)
- Ryoung-Eun Ko
- Department of Critical Care Medicine, Samsung Medical Center, School of Medicine, Sungkyunkwan University, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea; (R.-E.K.); (C.R.C.); (G.Y.S.)
| | - Zero Kim
- Medical AI Research Center, Samsung Medical Center, Seoul 06351, Republic of Korea; (Z.K.); (B.J.); (M.J.); (M.J.C.)
- Department of Data Convergence and Future Medicine, School of Medicine, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Bomi Jeon
- Medical AI Research Center, Samsung Medical Center, Seoul 06351, Republic of Korea; (Z.K.); (B.J.); (M.J.); (M.J.C.)
| | - Migyeong Ji
- Medical AI Research Center, Samsung Medical Center, Seoul 06351, Republic of Korea; (Z.K.); (B.J.); (M.J.); (M.J.C.)
| | - Chi Ryang Chung
- Department of Critical Care Medicine, Samsung Medical Center, School of Medicine, Sungkyunkwan University, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea; (R.-E.K.); (C.R.C.); (G.Y.S.)
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Gee Young Suh
- Department of Critical Care Medicine, Samsung Medical Center, School of Medicine, Sungkyunkwan University, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea; (R.-E.K.); (C.R.C.); (G.Y.S.)
- Devision of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Myung Jin Chung
- Medical AI Research Center, Samsung Medical Center, Seoul 06351, Republic of Korea; (Z.K.); (B.J.); (M.J.); (M.J.C.)
- Department of Data Convergence and Future Medicine, School of Medicine, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Baek Hwan Cho
- Department of Biomedical Informatics, School of Medicine, CHA University, Seongnam 13497, Republic of Korea
- Institute of Biomedical Informatics, School of Medicine, CHA University, Seongnam 13497, Republic of Korea
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Franchina AG, Rocchetti M, Sala E, Laricchia A, Minardi A, Spangaro A, Guazzi M, Lucreziotti S, Cereda A. Relationships, Current Issues, Safety and Efficacy of Oral Anticoagulation in Cancer Patients with Atrial Fibrillation. J Clin Med 2023; 12:6559. [PMID: 37892697 PMCID: PMC10607729 DOI: 10.3390/jcm12206559] [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: 08/11/2023] [Revised: 09/23/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
A relationship between malignancy and impaired hemostasis has been proven, and balancing clotting and bleeding risks can be challenging. Half of cancer patients with atrial fibrillation (AF) do not receive any oral anticoagulation (OAC). Using PubMed on the relationship between cancer and AF and their association with hemostasis, targeting studies comparing vitamin K antagonists (VKAs) and direct OAC (DOAC) strategies in AF cancer patients, three RCTs (>3000 patients) and eight observational studies (>250,000 patients) comparing different OACs were retrieved. The VKA prescribed was always warfarin. Dabigatran was the only DOAC not analyzed in the RCTs but the most used in non-randomized studies, whereas edoxaban-treated patients were the majority in the RCTs. Overall, the DOAC patients showed similar or lower rates of efficacy (thromboembolic) and safety (bleeding) outcomes compared to the VKA patients. DOACs are subject to fewer interactions with antineoplastic agents. DOACs may be preferable to VKAs as a thromboembolic prophylaxis in cancer patients with non-valvular AF.
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Affiliation(s)
- Antonio Gabriele Franchina
- Division of Cardiology, Cardio-Thoracic Department, San Carlo Borromeo Hospital (ASST Santi Paolo e Carlo), Via Pio II n.3, 20153 Milan, Italy; (M.R.); (E.S.); (A.L.); (A.M.); (A.S.); (S.L.); (A.C.)
| | - Matteo Rocchetti
- Division of Cardiology, Cardio-Thoracic Department, San Carlo Borromeo Hospital (ASST Santi Paolo e Carlo), Via Pio II n.3, 20153 Milan, Italy; (M.R.); (E.S.); (A.L.); (A.M.); (A.S.); (S.L.); (A.C.)
| | - Elena Sala
- Division of Cardiology, Cardio-Thoracic Department, San Carlo Borromeo Hospital (ASST Santi Paolo e Carlo), Via Pio II n.3, 20153 Milan, Italy; (M.R.); (E.S.); (A.L.); (A.M.); (A.S.); (S.L.); (A.C.)
| | - Alessandra Laricchia
- Division of Cardiology, Cardio-Thoracic Department, San Carlo Borromeo Hospital (ASST Santi Paolo e Carlo), Via Pio II n.3, 20153 Milan, Italy; (M.R.); (E.S.); (A.L.); (A.M.); (A.S.); (S.L.); (A.C.)
| | - Alessandro Minardi
- Division of Cardiology, Cardio-Thoracic Department, San Carlo Borromeo Hospital (ASST Santi Paolo e Carlo), Via Pio II n.3, 20153 Milan, Italy; (M.R.); (E.S.); (A.L.); (A.M.); (A.S.); (S.L.); (A.C.)
| | - Andrea Spangaro
- Division of Cardiology, Cardio-Thoracic Department, San Carlo Borromeo Hospital (ASST Santi Paolo e Carlo), Via Pio II n.3, 20153 Milan, Italy; (M.R.); (E.S.); (A.L.); (A.M.); (A.S.); (S.L.); (A.C.)
| | - Marco Guazzi
- Division of Cardiology, Cardio-Thoracic Department, San Paolo Hospital (ASST Santi Paolo e Carlo), Via Antonio di Rudinì, 8, 20142 Milan, Italy;
| | - Stefano Lucreziotti
- Division of Cardiology, Cardio-Thoracic Department, San Carlo Borromeo Hospital (ASST Santi Paolo e Carlo), Via Pio II n.3, 20153 Milan, Italy; (M.R.); (E.S.); (A.L.); (A.M.); (A.S.); (S.L.); (A.C.)
| | - Alberto Cereda
- Division of Cardiology, Cardio-Thoracic Department, San Carlo Borromeo Hospital (ASST Santi Paolo e Carlo), Via Pio II n.3, 20153 Milan, Italy; (M.R.); (E.S.); (A.L.); (A.M.); (A.S.); (S.L.); (A.C.)
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Vedovati MC, Giustozzi M, Munoz A, Bertoletti L, Cohen AT, Klok FA, Connors JM, Bauersachs R, Brenner B, Campanini M, Becattini C, Agnelli G. Risk factors for recurrence and major bleeding in patients with cancer-associated venous thromboembolism. Eur J Intern Med 2023; 112:29-36. [PMID: 36774305 DOI: 10.1016/j.ejim.2023.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/02/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023]
Abstract
Risks of recurrence and treatment-emergent bleeding are high in patients with cancer-associated venous thromboembolism (VTE) but factors associated with these risks remain substantially undefined. The aim of this analysis in patients with cancer-associated VTE included in the Caravaggio study was to identify risk factors for recurrent VTE and major bleeding. Variables potentially predictive for recurrent VTE or major bleeding were evaluated in a Cox proportional hazard multivariable analysis with backward variable selection. Recurrent VTE occurred in 78 patients (6.8%) and major bleeding in 45 (3.9%). Independent risk factors for recurrent VTE were deep vein thrombosis (DVT) as index event (Hazard ratio (HR) 1.84, 95% CI 1.17-2.88), ECOG status of 1 or more (HR 1.95, 95% CI 1.11-3.43), pancreatic or hepatobiliary cancer site (HR 2.20, 95% CI 1.19-4.06), concomitant anti-cancer treatment (HR 1.98, 95% CI 1.03-3.81) and creatinine clearance (HR 1.10, 95% CI 1.00-1.20 for every 10 ml/min absolute increase). Independent risk factors for major bleeding were ECOG status of 2 (HR 2.31, 95% CI 1.24-4.29), genitourinary cancer site (HR 2.72, 95% CI 1.28-5.77), upper gastrointestinal cancer site (HR 3.17, 95% CI 1.22-8.23), and non-resected luminal gastrointestinal cancer (HR 2.77, 95% CI 1.38-5.56). This analysis of the Caravaggio study in patients with cancer-associated VTE who were on standardized anticoagulant treatment identified five independent predictors for recurrent VTE and four independent predictors of treatment-emergent major bleeding. Considering these risks could help clinicians to optimize the anticoagulant treatment in patients with cancer-associated VTE.
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Affiliation(s)
- Maria Cristina Vedovati
- Internal Vascular and Emergency Medicine - Stroke Unit, University of Perugia, Perugia, Italy
| | - Michela Giustozzi
- Internal Vascular and Emergency Medicine - Stroke Unit, University of Perugia, Perugia, Italy
| | - Andrés Munoz
- Instituto de Investigatión Sanitaria Gregorio Marañon, Universidad Complutense, Madrid, Spain
| | - Laurent Bertoletti
- CHU de St-Etienne, Service de Médecine Vasculaire et Thérapeutique; INSERM, UMR1059, Université Jean-Monnet; INSERM, CIC-1408, CHU de Saint-Etienne; INNOVTE, CHU de Saint-Etienne; all in F-42055, Saint-Etienne, France
| | - Alexander T Cohen
- Guy's and St. Thomas' NHS Foundation Trust Hospital, King's College London, London, United Kingdom
| | - Frederikus A Klok
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - Jean M Connors
- Hematology Division, Brigham and Women's Hospital, and Harvard Medical School, Boston, USA
| | - Rupert Bauersachs
- Department of Center for Thrombosis and Hemostasis, University of Mainz, Mainz, and Cardioangiologic Center Bethanien, CCB, Frankfurt, Germany
| | - Benjamin Brenner
- Department of Hematology, Rambam Health Care Campus, Haifa, Israel
| | - Mauro Campanini
- Department of Internal Medicine, Hospital "Maggiore della Carità", Novara, Italy
| | - Cecilia Becattini
- Internal Vascular and Emergency Medicine - Stroke Unit, University of Perugia, Perugia, Italy
| | - Giancarlo Agnelli
- Internal Vascular and Emergency Medicine - Stroke Unit, University of Perugia, Perugia, Italy.
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Wang L, Su Z, Xie C, Li R, Pan W, Xu L, Chen F, Cheng G. Efficacy and safety of fondaparinux in preventing venous thromboembolism in Chinese cancer patients: a single-arm, multicenter, retrospective study. Front Oncol 2023; 13:1165437. [PMID: 37313468 PMCID: PMC10258345 DOI: 10.3389/fonc.2023.1165437] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 05/02/2023] [Indexed: 06/15/2023] Open
Abstract
Objective Fondaparinux is a synthetic anticoagulant for the prevention of venous thromboembolism (VTE), and its administration in Chinese cancer patients is rarely reported. This study aimed to assess the efficacy and safety of fondaparinux in preventing VTE in Chinese cancer patients. Methods A total of 224 cancer patients who received fondaparinux treatment were reviewed in this single-arm, multicenter, retrospective study. Meanwhile, VTE, bleeding, death, and adverse events of those patients in the hospital and at 1 month after treatment (M1) were retrieved, respectively. Results The in-hospital VTE rate was 0.45% and there was no (0.00%) VTE occurrence at M1. The in-hospital bleeding rate was 2.68%, among which the major bleeding rate was 2.23% and the minor bleeding rate was 0.45%. Moreover, the bleeding rate at M1 was 0.90%, among which both the major and minor bleeding rates were 0.45%. The in-hospital death rate was 0.45% and the death rate at M1 was 0.90%. Furthermore, the total rate of adverse events was 14.73%, including nausea and vomiting (3.13%), gastrointestinal reactions (2.23%), and reduced white blood cells (1.34%). Conclusion Fondaparinux could effectively prevent VTE with low bleeding risk and acceptable tolerance in cancer patients.
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Affiliation(s)
- Lei Wang
- Department of Medical Oncology, The Afflicted Bozhou Hospital of Anhui Medical University, Bozhou, China
| | - Zhong Su
- Department of Oncology, Shandong Zouping People’s Hospital, Zouping, China
| | - Chunying Xie
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ruijun Li
- Department of Medical Oncology, Zhengzhou People’s Hospital, Zhengzhou, China
| | - Wei Pan
- Department of Radiation Oncology, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Lu Xu
- Department of Oncology, Yongkang First People’s Hospital, Yongkang, China
| | - Fei Chen
- Department of Oncology, The Central Hospital of Xiaogan, Xiaogan, China
| | - Gang Cheng
- Department of Medical Oncology, The Afflicted Bozhou Hospital of Anhui Medical University, Bozhou, China
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Can thromboprophylaxis build a link for cancer patients undergoing surgical and/or chemotherapy treatment? The MeTHOS cohort study. Support Care Cancer 2022; 30:6973-6984. [PMID: 35552827 PMCID: PMC9213358 DOI: 10.1007/s00520-022-07096-1] [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] [Received: 11/29/2021] [Accepted: 04/27/2022] [Indexed: 11/01/2022]
Abstract
BACKGROUND Patients with active cancer have a 4-sevenfold increased risk for venous thromboembolism (VTE) especially during systematic anticancer treatment. Simultaneously, surgery is an additional risk factor. METHODS The Metaxas's Hospital THromboprophylaxis program in Oncological & Surgical Patients (MeTHOS) is a prospective, phase IV, observational, non-interventional cohort study, aiming to record the thromboprophylaxis practice patterns in high-risk active cancer patients undergoing surgical and/or chemotherapy treatment. RESULTS We are reporting results from 291 ambulatory patients (median age: 67 years, Q1-Q3: 59-73 years, 54.6% males) who received anti-neoplastic treatment and administered thromboprophylaxis. 59.8% had cardiovascular disease (mostly hypertension), 76.6% were reported as having at least one comorbidity, while 27.5% and 15.8% accumulated two and three comorbidities, respectively. 94.9% of the patients were receiving highly thrombogenic agents such as platinum-based agents, 5-FU, immunotherapy, antiangiogenics/anti-VEGF, or erythropoietin. 26.5% of the patients were initially surgically treated. In terms of anticoagulation, all patients were treated with tinzaparin (fixed dose, 10,000 Anti-Xa IU, OD). The median anticoagulation duration was 6.2 months. Six thrombotic events were observed (2.06%, 95% CI: 0.76-4.43%): 5 were DVT, and one PE. With respect to safety, 7 bleeding events occurred (2.6%, 95% CI: 1.0-5.3%); 6 of them were minor. CONCLUSIONS Thromboprophylaxis with LMWH in patients with active cancer and high thrombotic burden was safe and effective. Intermediate dose of tinzaparin seems to be an appropriate agent for cancer-associated thromboprophylaxis management. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov: NCT04248348.
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