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Overvad TF, Severinsen MT, Johnsen SP, Madsen SS, Kannik K, Stenfeldt LG, Larsen TB, Nielsen PB. Positive predictive value and sensitivity of cancer-associated venous thromboembolism diagnoses in the Danish National Patient Register. Thromb Res 2024; 241:109074. [PMID: 38959580 DOI: 10.1016/j.thromres.2024.109074] [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: 02/01/2024] [Revised: 06/17/2024] [Accepted: 06/24/2024] [Indexed: 07/05/2024]
Abstract
INTRODUCTION Hospital discharge diagnoses from administrative registries are frequently used in studies of cancer-associated venous thromboembolism, but the validity of International Classification of Diseases (ICD) codes for identifying such events is unknown. MATERIALS AND METHODS Using patient samples from the Danish National Patient Register, we calculated positive predictive values (PPV), i.e., the proportion of registered ICD codes, which could be confirmed after manual search of the electronic health record. Sensitivity was estimated in a sample of patients with imaging-verified venous thromboembolism but without prior knowledge about their ICD coding status. Sensitivity was calculated as the proportion of these patients, who were discharged with an ICD code for venous thromboembolism. RESULTS The overall PPV of an ICD-10 diagnosis of cancer-associated venous thromboembolism was 75.9 % (95 % confidence interval 71.3-80.0). In subgroups, the PPV was particularly low for recurrent venous thromboembolism (44.2 %), diagnoses in a secondary position (55.7 %), outpatient diagnoses (65.3 %), and diagnoses given at surgical (66.7 %), emergency wards (48.4 %), or via hospices/palliative teams (0 %). The overall sensitivity was 68 %, meaning 32 % of patients with cancer diagnosed in hospital with venous thromboembolism were discharged without any registered ICD code for venous thromboembolism. CONCLUSIONS The positive predictive value of an ICD diagnosis of cancer-associated venous thromboembolism in the Danish Patient Register was overall adequate for research purposes, but with notable variation across subgroups. Sensitivity was limited, as 1/3 of patients with venous thromboembolism were discharged without any relevant ICD code. Cautious interpretation of incidence of cancer-associated venous thromboembolism based on administrative register-based data is warranted.
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Affiliation(s)
- Thure Filskov Overvad
- Department of Clinical Pharmacology, Aalborg University Hospital, Denmark; Department of Clinical Pharmacology, Aarhus University Hospital, Denmark.
| | - Marianne Tang Severinsen
- Department of Hematology, Clinical Cancer Research Unit, Aalborg University Hospital, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Søren Paaske Johnsen
- Danish Center for Health Services Research, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | | | - Karina Kannik
- Department of Hematology, Clinical Cancer Research Unit, Aalborg University Hospital, Denmark
| | | | | | - Peter Brønnum Nielsen
- Danish Center for Health Services Research, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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Chen J, Liu S, Ruan Z, Wang K, Xi X, Mao J. Thrombotic events associated with immune checkpoint inhibitors and novel antithrombotic strategies to mitigate bleeding risk. Blood Rev 2024:101220. [PMID: 38876840 DOI: 10.1016/j.blre.2024.101220] [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: 04/26/2024] [Revised: 05/23/2024] [Accepted: 06/05/2024] [Indexed: 06/16/2024]
Abstract
Although immunotherapy is expanding treatment options for cancer patients, the prognosis of advanced cancer remains poor, and these patients must contend with both cancers and cancer-related thrombotic events. In particular, immune checkpoint inhibitors are associated with an increased risk of atherosclerotic thrombotic events. Given the fundamental role of platelets in atherothrombosis, co-administration of antiplatelet agents is always indicated. Platelets are also involved in all steps of cancer progression. Classical antithrombotic drugs can cause inevitable hemorrhagic side effects due to blocking integrin β3 bidirectional signaling, which regulates simultaneously thrombosis and hemostasis. Meanwhile, many promising new targets are emerging with minimal bleeding risk and desirable anti-tumor effects. This review will focus on the issue of thrombosis during immune checkpoint inhibitor treatment and the role of platelet activation in cancer progression as well as explore the mechanisms by which novel antiplatelet therapies may exert both antithrombotic and antitumor effects without excessive bleeding risk.
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Affiliation(s)
- Jiayi Chen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, Collaborative Innovation Center of Hematology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Shuang Liu
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, Collaborative Innovation Center of Hematology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zheng Ruan
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, Collaborative Innovation Center of Hematology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Kankan Wang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Sino-French Research Center for Life Sciences and Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| | - Xiaodong Xi
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, Collaborative Innovation Center of Hematology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| | - Jianhua Mao
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, Collaborative Innovation Center of Hematology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
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Liu G, Chen T, Zhang X, Hu B, Shi H. Immune checkpoint inhibitor-associated cardiovascular toxicities: A review. Heliyon 2024; 10:e25747. [PMID: 38434280 PMCID: PMC10907684 DOI: 10.1016/j.heliyon.2024.e25747] [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: 07/19/2023] [Revised: 02/01/2024] [Accepted: 02/01/2024] [Indexed: 03/05/2024] Open
Abstract
Immune checkpoint inhibitors (ICIs) have revolutionary effects on therapeutic strategies for multiple malignancies. Their efficacy depends on their ability to reactivate the host immune system to fight cancer cells. However, adverse reactions to ICIs are common and involve several organs, limiting their use in clinical practice. Although the incidence of cardiovascular toxicity is relatively low, it is associated with serious consequences and high mortality rates. The primary cardiovascular toxicities include myocarditis, pericarditis, Takotsubo syndrome, arrhythmia, vasculitis, acute coronary syndrome, and venous thromboembolism. Currently, the mechanism underlying ICI-associated cardiovascular toxicity remains unclear and underexplored. The diagnosis and monitoring of ICI-associated cardiovascular toxicities mainly include the following indicators: symptoms, signs, laboratory examination, electrocardiography, imaging, and pathology. Treatments are based on the grade of cardiovascular toxicity and mainly include drug withdrawal, corticosteroid therapy, immunosuppressants, and conventional cardiac treatment. This review focuses on the incidence, underlying mechanisms, clinical manifestations, diagnoses, and treatment strategies.
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Affiliation(s)
- Guihong Liu
- Guihong Liu Department of Biotherapy, State Key Laboratory of Biotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Chen
- Tao Chen Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xin Zhang
- Guihong Liu Department of Biotherapy, State Key Laboratory of Biotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Binbin Hu
- Guihong Liu Department of Biotherapy, State Key Laboratory of Biotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Huashan Shi
- Guihong Liu Department of Biotherapy, State Key Laboratory of Biotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
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Huang Z, Li L, Gong Z, Tang L. Construction and Validation of a Nomogram to Predict the Postoperative Venous Thromboembolism Risk in Patients with HGSOC. Clin Appl Thromb Hemost 2024; 30:10760296241255958. [PMID: 38767088 PMCID: PMC11107311 DOI: 10.1177/10760296241255958] [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: 01/23/2024] [Revised: 04/20/2024] [Accepted: 05/02/2024] [Indexed: 05/22/2024] Open
Abstract
Venous thromboembolism (VTE) is a common complication in patients with high-grade serous ovarian cancer (HGSOC) after surgery. This study aims to establish a comprehensive risk assessment model to better identify the potential risk of postoperative VTE in HGSOC. Clinical data from 587 HGSOC patients who underwent surgical treatment were retrospectively collected. Univariate and multivariate logistic regression analyses were performed to identify independent factors influencing the occurrence of postoperative VTE in HGSOC. A nomogram model was constructed in the training set and further validated in the verification set. Logistic regression identified age (odds ratio [OR] = 1.063, P = .002), tumor size (OR = 3.815, P < .001), postoperative transfusion (OR = 5.646, P = .001), and postoperative D-dimer (OR = 1.246, P = .003) as independent risk factors for postoperative VTE in HGSOC patients. A nomogram was constructed using these factors. The receiver operating characteristic curve showed an area under the curve (AUC) of 0.840 (95% confidence interval [CI]: 0.782, 0.898) in the training set and 0.793 (95% CI: 0.704, 0.882) in the validation set. The calibration curve demonstrated a good consistency between model predictions and actual results. The decision curve analysis indicated the model benefits at a threshold probability of less than 70%. A nomogram predicting postoperative VTE in HGSOC was established and validated. This model will assist clinicians in the early identification of high-risk patients, enabling the implementation of appropriate preventive measures.
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Affiliation(s)
- Zhen Huang
- Department of Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ling Li
- Department of Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhengxin Gong
- Department of Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Liangdan Tang
- Department of Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Ording AG, Nielsen PB, Skjøth F, Overvad TF, Noble S, Lash TL, Goldhaber SZ, Christensen TD, Larsen TB, Søgaard M. Risk of recurrent cancer-associated venous thromboembolism: A Danish nationwide cohort study. Int J Cardiol 2023; 390:131271. [PMID: 37591413 DOI: 10.1016/j.ijcard.2023.131271] [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] [Received: 05/25/2023] [Revised: 07/24/2023] [Accepted: 08/14/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND Predictive factors for recurrent cancer-associated venous thromboembolism have been inconsistent across previous studies. To provide data for improved risk stratification, we described the risk of recurrent venous thromboembolism overall and across age, sex, calendar period, cancer type, Ottawa risk score, cancer stage, and cancer treatment in a nationwide cohort of patients with active cancer. METHODS Using Danish administrative registries, we identified a cohort of all adult patients with active cancer and a first-time diagnosis of venous thromboembolism during 2003-2018. We accounted for the competing risk of death and calculated absolute risks of recurrent venous thromboembolism at six months. RESULTS The population included 34,072 patients with active cancer and venous thromboembolism. Recurrence risks at six months were higher for patients with genitourinary cancer (6.5%), lung cancer (6.1%), gastrointestinal cancer (5.6%), brain cancer (5.2%), and hematological cancer (5.1%) than for patients with gynecological cancer (4.7%), breast cancer (4.1%), and other cancer types (4.8%). Recurrence risks were similar for men (5.2%) and women (4.9%), with and without chemotherapy (5.1%), across Ottawa risk score group (low: 5.0%; high: 5.1%) and across calendar periods but increased with increasing cancer stage. The overall six-month all-cause mortality risk was 26%, and highest for patients with lung cancer (49%) and lowest among breast cancer patients (4.1%). CONCLUSIONS Six-month recurrence risk after first-time cancer-associated venous thromboembolism was high and varied by cancer type and patient characteristics. Refining risk stratification for recurrence may improve decision-making regarding treatment duration after cancer-associated thromboembolism.
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Affiliation(s)
- Anne Gulbech Ording
- Danish Center for Health Services Research, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark; Unit for Thrombosis and Drug Research, Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark.
| | - Peter Brønnum Nielsen
- Unit for Thrombosis and Drug Research, Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark; Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark
| | - Flemming Skjøth
- Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark; Unit for Clinical Biostatistics, Aalborg University Hospital, Aalborg, Denmark
| | - Thure Filskov Overvad
- Unit for Thrombosis and Drug Research, Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Pharmacology, Aalborg University Hospital, Aalborg, Denmark
| | - Simon Noble
- Marie Curie Palliative Care Research Centre, Cardiff University, Cardiff, UK
| | - Timothy L Lash
- Department of Epidemiology, Rollins School of Public Health, Emory University, USA; Cancer Prevention and Control Research Program, Winship Cancer Institute of Emory University, USA
| | - Samuel Zachery Goldhaber
- Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Thomas Decker Christensen
- Department of Cardiothoracic and Vascular Surgery & Department of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Torben Bjerregaard Larsen
- Unit for Thrombosis and Drug Research, Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark; Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark
| | - Mette Søgaard
- Unit for Thrombosis and Drug Research, Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark; Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark
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Wang TF, Carrier M. Immune Checkpoint Inhibitors-Associated Thrombosis: Incidence, Risk Factors and Management. Curr Oncol 2023; 30:3032-3046. [PMID: 36975443 PMCID: PMC10047296 DOI: 10.3390/curroncol30030230] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/26/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Immune checkpoint inhibitors (ICIs) target programmed cell death (PD) 1 receptor and its ligand PD-L1, and have become an integral part of treatment regimens in many cancers including lung cancer, renal cell carcinoma, melanoma, and more. Cancer is associated with a significantly increased risk of venous thromboembolism compared to non-cancer patients, and the risks increase further with anticancer therapies including ICIs. Cancer-associated thrombosis can lead to hospitalizations, delayed cancer treatment, and mortality. While thrombosis was not reported as a major complication in initial clinical trials leading to the approval of ICIs, emerging evidence from post-marketing studies revealed concerning risks of thrombosis in patients receiving ICIs. However, results remained heterogenous given differences in study designs and populations. Recent studies also showed that C-reactive protein dynamics might be an easily accessible biomarker for thrombosis and disease response in this population. In addition, early findings indicated that a commonly used anticoagulant for cancer-associated thrombosis, factor Xa inhibitors, might have potential synergistic antitumor effects when combined with ICIs. Herein we will review the current literature on the incidence, risk factors, and management of thrombosis in patients with cancer receiving ICIs. We aim to provide valuable information for clinicians in managing these patients.
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Khorana AA, Palaia J, Rosenblatt L, Pisupati R, Huang N, Nguyen C, Barron J, Gallagher K, Bond TC. Venous thromboembolism incidence and risk factors associated with immune checkpoint inhibitors among patients with advanced non-small cell lung cancer. J Immunother Cancer 2023; 11:jitc-2022-006072. [PMID: 36657815 PMCID: PMC9853260 DOI: 10.1136/jitc-2022-006072] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2022] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Venous thromboembolism (VTE) is a significant cause of morbidity and mortality in patients with lung cancer. Systemic therapies, such as chemotherapy (chemo), are associated with increased risk of VTE. Immune checkpoint inhibitors (ICIs) are a new standard of care for the treatment of lung cancer, but their association with VTE is not fully understood. We evaluated the incidence of VTE and risk factors for patients with advanced non-small cell lung cancer (aNSCLC) treated with first-line ICI-based, chemo-based, or ICI+chemo regimens. METHODS This retrospective cohort study used HealthCore Integrated Research Environment - Oncology data, an integrated database of administrative claims, coupled with clinical data from a cancer-care quality program. Patients with first-line treatment of stage IV non-small cell lung cancer from July 2014 to August 2020 were grouped based on three treatment types: ICI-based, chemo-based, or ICI+chemo. Patients with VTE before initiation of systemic treatment were excluded. Newly diagnosed VTE events were identified via inpatient and outpatient diagnosis codes. Cox proportional hazards models were used to investigate the factors associated with VTE risk. RESULTS Among 2299 eligible patients (ICI-based, n=605; chemo-based, n=1092; ICI+chemo, n=602) with a median follow-up of 9.1 months, the VTE incidence rates (95% CI) per 100 person-years were 17.8 (95% CI 16.0 to 19.5) overall, 13.5 (95% CI 10.6 to 16.5) for ICI-based, 18.0 (95% CI 15.5 to 20.5) for chemo-based, and 22.4 (95% CI 20.2 to 24.5) for ICI+chemo. The 6-month cumulative incidence of VTE was 8.1% for ICI-based, 10.9% for chemo-based, and 12.8% for ICI+chemo. Pulmonary embolism was most common, accounting for 63% of the VTE events. After controlling for baseline patient characteristics, the risk of VTE was 26% lower for ICI-based regimens than for chemo-based regimens (HR 0.74, p=0.03). There was no meaningful difference in the risk between ICI+chemo and chemo-based regimens (HR 1.12, p=0.36). Previous radiation and severe obesity (body mass index ≥40) were associated with VTE. CONCLUSIONS VTE incidence rate per 100 person-years was common across regimens in patients with aNSCLC, but numerically lower for patients receiving ICI-based regimens compared with those receiving chemo-based and ICI+chemo regimens. VTE is a common complication of lung cancer, and there is a continued need for awareness of VTE as a comorbidity in this population.
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Affiliation(s)
- Alok A Khorana
- Department of Hematology and Medical Oncology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jennell Palaia
- Worldwide Health Economics and Outcomes Research, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Lisa Rosenblatt
- Worldwide Health Economics and Outcomes Research, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Radhika Pisupati
- US Medical Oncology, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Ning Huang
- Worldwide Patient Safety: Medical Safety Assessment, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Chi Nguyen
- Health Economics and Outcomes Research, HealthCore Inc, Wilmington, Delaware, USA
| | - John Barron
- Health Economics and Outcomes Research, HealthCore Inc, Wilmington, Delaware, USA
| | - Kerrin Gallagher
- Health Economics and Outcomes Research, HealthCore Inc, Wilmington, Delaware, USA
| | - T Christopher Bond
- Worldwide Patient Safety: Epidemiology, Bristol Myers Squibb, Princeton, New Jersey, USA
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Overvad TF, Skjøth F, Piazza G, Noble S, Ording AG, Larsen TB, Nielsen PB. The Khorana score and venous and arterial thrombosis in patients with cancer treated with immune checkpoint inhibitors: A Danish cohort study. J Thromb Haemost 2022; 20:2921-2929. [PMID: 36112135 PMCID: PMC9828438 DOI: 10.1111/jth.15883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/15/2022] [Accepted: 09/15/2022] [Indexed: 01/13/2023]
Abstract
BACKGROUND Thrombosis is common among patients with cancer. Primary thromboprophylaxis guided by the Khorana score is endorsed by guidelines but recommendations rely mainly on data from patients treated with chemotherapy. OBJECTIVES To explore if the Khorana score could risk stratify patients with cancer treated with immune checkpoint inhibitors according to risk of venous and arterial thrombosis. PATIENTS/METHODS The study population and Khorana score were defined using administrative Danish health registries. The primary outcome was 6-month risk of venous thromboembolism after initiation of checkpoint inhibitor treatment. Secondary outcomes were arterial thrombosis and any thromboembolic event. Death was considered a competing risk event. RESULTS Among 3946 patients with cancer initiating checkpoint inhibitor treatment without other indications for anticoagulation, the overall 6-month incidence of venous thromboembolism was 2.6% (95% confidence interval [CI]: 2.1-3.1). Risks were 2.1% (95% CI: 1.5-3.0), 2.6% (95% CI: 2.0-3.4), and 3.7% (95% CI: 2.1-5.9) in low (score 0), intermediate (score 1-2), and high risk (score ≥3) Khorana categories, respectively. Among patients eligible for primary thromboprophylaxis according to guidelines (Khorana score ≥2), risk of venous thromboembolism was 4.1% (95% CI: 3.1-5.4). Higher Khorana risk category was also associated with higher 6-month risk of both arterial thrombosis and any thromboembolic events. CONCLUSIONS The Khorana score was able to risk stratify patients with cancer treated with immune checkpoint inhibitors according to 6-month risk of thromboembolic events. Risks of venous thromboembolism were lower than in randomized thromboprophylaxis trials, thus questioning the absolute benefit of routine primary thromboprophylaxis in an unselected population of patients treated with immune checkpoint inhibitors.
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Affiliation(s)
- Thure F. Overvad
- Department of Clinical PharmacologyAalborg University HospitalAalborgDenmark
- Aalborg Thrombosis Research Unit, Department of Clinical MedicineAalborg UniversityAalborgDenmark
| | - Flemming Skjøth
- Aalborg Thrombosis Research Unit, Department of Clinical MedicineAalborg UniversityAalborgDenmark
- Unit of Clinical BiostatisticsAalborg University HospitalAalborgDenmark
| | - Gregory Piazza
- Division of Cardiovascular Medicine, Department of MedicineBrigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
| | - Simon Noble
- Marie Curie Palliative Care Research CentreCardiff UniversityCardiffUK
| | - Anne G. Ording
- Aalborg Thrombosis Research Unit, Department of Clinical MedicineAalborg UniversityAalborgDenmark
- Department of CardiologyAalborg University HospitalAalborgDenmark
| | - Torben B. Larsen
- Aalborg Thrombosis Research Unit, Department of Clinical MedicineAalborg UniversityAalborgDenmark
- Department of CardiologyAalborg University HospitalAalborgDenmark
| | - Peter B. Nielsen
- Aalborg Thrombosis Research Unit, Department of Clinical MedicineAalborg UniversityAalborgDenmark
- Department of CardiologyAalborg University HospitalAalborgDenmark
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