Effectiveness and Safety of Direct Oral Anticoagulants Versus Warfarin in Patients with Atrial Fibrillation and Cancer: A Target Trial Emulation from SEER-Medicare Database.

IF 3.1 3区医学 Q2 CARDIAC & CARDIOVASCULAR SYSTEMS

Cardiovascular Drugs and Therapy Pub Date : 2024-06-07 DOI:10.1007/s10557-024-07589-7

Bang Truong, Lori Hornsby, Brent Fox, Chiahung Chou, Jingyi Zheng, Jingjing Qian

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引用次数: 0

Abstract

Background: Direct oral anticoagulants (DOACs) are preferred over warfarin in patients with atrial fibrillation (AFib). However, their safety and effectiveness in patients with AFib and cancer are inconclusive.

Methods: We conducted a retrospective cohort study by emulating a target trial. Patients with a record of cancer (breast, prostate, or lung), newly diagnosed with AFib initiated DOACs or warfarin within 3 months after AFib diagnosis from the 2012-2019 Surveillance, Epidemiology, and End Results (SEER)-Medicare database were included. We compared the risk of ischemic stroke, major bleeding, and secondary outcomes (venous thromboembolism, intracranial bleeding, gastrointestinal bleeding, and non-critical site bleeding) between patients who initiated DOACs and warfarin. Inverse probability treatment weights and inverse probability censoring weights were used to adjust imbalanced patient and disease characteristics and loss to follow-up between the two groups. Weighted pooled logistic regression were used to estimate treatment effect with hazard ratios (HRs) with 95% confidence interval (95% CIs).

Results: The incidence rates of stroke and major bleeding between DOAC and warfarin initiators were 9.97 vs. 9.91 and 7.74 vs. 9.24 cases per 1000 person-years, respectively. In adjusted intention-to-treat analysis, patients initiated DOACs had no statistically significant difference in risk of ischemic stroke (HR = 0.87, 95% CI 0.52-1.44) and major bleeding (HR = 1.14, 95% CI 0.77-1.68) compared to those initiated warfarin. In adjusted per-protocol analysis, there was no statistical difference in risk of ischemic stroke (HR = 1.81, 95% CI 0.75-4.36) and lower risk for major bleeding, but the 95% CI was wide (HR = 0.35, 95% CI 0.12-0.99) among DOAC initiators compared to warfarin initiators. The benefits in secondary outcomes were in favor of DOACs. The findings remained consistent across subgroups and sensitivity analyses.

Conclusion: DOACs are safe and effective alternatives to warfarin in the management of patients with AFib and cancer.

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心房颤动和癌症患者服用直接口服抗凝剂与华法林的有效性和安全性：来自 SEER-Medicare 数据库的目标试验模拟。

背景：心房颤动（AFib）患者首选直接口服抗凝剂（DOAC），而非华法林。然而，它们对心房颤动和癌症患者的安全性和有效性尚无定论：我们通过模仿目标试验进行了一项回顾性队列研究。研究纳入了有癌症（乳腺癌、前列腺癌或肺癌）病史的患者，这些患者是在 2012-2019 年监测、流行病学和最终结果（SEER）--医疗保险数据库中新确诊的心房颤动患者，在确诊心房颤动后 3 个月内开始使用 DOAC 或华法林。我们比较了开始使用 DOACs 和华法林的患者发生缺血性卒中、大出血和次要结局（静脉血栓栓塞、颅内出血、消化道出血和非关键部位出血）的风险。逆概率治疗权重和逆概率删减权重用于调整两组之间不平衡的患者和疾病特征以及随访损失。采用加权集合逻辑回归估计治疗效果，得出危险比（HRs）及95%置信区间（95% CIs）：结果：开始使用 DOAC 和华法林的患者中风和大出血的发生率分别为每千人年 9.97 例 vs. 9.91 例和 7.74 例 vs. 9.24 例。在调整后的意向治疗分析中，与开始使用华法林的患者相比，开始使用 DOAC 的患者发生缺血性中风（HR = 0.87，95% CI 0.52-1.44）和大出血（HR = 1.14，95% CI 0.77-1.68）的风险没有显著统计学差异。在调整后的按方案分析中，缺血性卒中风险（HR = 1.81，95% CI 0.75-4.36）和大出血风险较低，但与华法林相比，DOAC 初始患者的 95% CI 较宽（HR = 0.35，95% CI 0.12-0.99）。DOAC在次要结果中的获益更多。这些结果在亚组和敏感性分析中保持一致：在心房颤动和癌症患者的治疗中，DOACs 是安全有效的华法林替代药物。

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来源期刊

Cardiovascular Drugs and Therapy 医学-心血管系统

CiteScore

8.30

自引率

0.00%

发文量

110

审稿时长

4.5 months

期刊介绍： Designed to objectively cover the process of bench to bedside development of cardiovascular drug, device and cell therapy, and to bring you the information you need most in a timely and useful format, Cardiovascular Drugs and Therapy takes a fresh and energetic look at advances in this dynamic field. Homing in on the most exciting work being done on new therapeutic agents, Cardiovascular Drugs and Therapy focusses on developments in atherosclerosis, hyperlipidemia, diabetes, ischemic syndromes and arrhythmias. The Journal is an authoritative source of current and relevant information that is indispensable for basic and clinical investigators aiming for novel, breakthrough research as well as for cardiologists seeking to best serve their patients. Providing you with a single, concise reference tool acknowledged to be among the finest in the world, Cardiovascular Drugs and Therapy is listed in Web of Science and PubMed/Medline among other abstracting and indexing services. The regular articles and frequent special topical issues equip you with an up-to-date source defined by the need for accurate information on an ever-evolving field. Cardiovascular Drugs and Therapy is a careful and accurate guide through the maze of new products and therapies which furnishes you with the details on cardiovascular pharmacology that you will refer to time and time again.