1. Extending venous thromboembolism secondary prevention with apixaban in cancer patients. The EVE trial.
- Author
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McBane RD 2nd, Loprinzi CL, Zemla T, Tafur A, Sanfilippo K, Liu JJ, Garcia DA, Heun J, Gundabolu K, Onitilo AA, Perepu U, Drescher MR, Henkin S, Houghton D, Ashrani A, Billett H, McCue SA, Lee MK, Le-Rademacher JG, and Wysokinski WE
- Subjects
- Humans, Female, Male, Middle Aged, Aged, Double-Blind Method, Treatment Outcome, Time Factors, Anticoagulants adverse effects, Anticoagulants administration & dosage, Anticoagulants therapeutic use, Risk Factors, Drug Administration Schedule, Pyridones administration & dosage, Pyridones adverse effects, Pyrazoles administration & dosage, Pyrazoles adverse effects, Neoplasms complications, Neoplasms drug therapy, Venous Thromboembolism prevention & control, Venous Thromboembolism mortality, Venous Thromboembolism drug therapy, Venous Thromboembolism diagnosis, Venous Thromboembolism etiology, Hemorrhage chemically induced, Secondary Prevention, Factor Xa Inhibitors adverse effects, Factor Xa Inhibitors administration & dosage, Factor Xa Inhibitors therapeutic use
- Abstract
Background: Cancer-associated venous thromboembolism (VTE) management guideline recommendations include continued therapeutic anticoagulation while active cancer persists. The Federal Drug Administration label for apixaban for secondary VTE prevention includes a dose reduction to 2.5 mg twice daily after 6 months of treatment., Objectives: The study's purpose was to determine whether this dose reduction is advisable for cancer-associated VTE., Methods: A randomized, double-blind trial compared apixaban 2.5 mg with 5 mg twice daily for 12 months among cancer patients with VTE who had completed 6 to 12 months of anticoagulation therapy. The primary outcome was combined major bleeding plus clinically relevant nonmajor bleeding., Results: Of 370 patients recruited, 360 were included in the intention-to-treat analyses. Major plus clinically relevant nonmajor bleeding occurred in 16 of 179 patients (8.9%) in the apixaban 2.5 mg group compared with 22 of 181 patients (12.2%) in the 5 mg group (hazard ratio [HR], 0.72; 95% CI, 0.38-1.37; P = .39). Major bleeding occurred in 2.8% of the apixaban 2.5 mg group and in 2.2% of the 5 mg group (HR, 1.26; 95% CI, 0.34-4.66; P = .73). Recurrent VTE or arterial thrombosis occurred in 9 of 179 patients (5.0%) in the apixaban 2.5 mg group and 9 of 181 patients (5.0%) in the 5 mg group (HR, 1.0; 95% CI, 0.40-2.53; P = 1.00). All-cause mortality rates were similar between groups, 13% vs 12% (HR, 1.14; 95% CI, 0.63-2.04; P = .67)., Conclusion: For secondary prevention of cancer-associated VTE, apixaban 2.5 mg compared with 5 mg twice daily did not lower combined bleeding events (EVE trial NCT03080883)., Competing Interests: Declaration of competing interests The authors declare no competing financial interests., (Copyright © 2024 International Society on Thrombosis and Haemostasis. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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