里法素和华法林之间的相互作用的现实世界评估:一项回顾性观察性研究
Lina Naseralallah1, Dima Nasrallah2, Somaya Koraysh1
1Pharmacy Department, Hamad Medical Corporation, Doha, Qatar.
Advances in pharmacological and pharmaceutical sciences
|August 6, 2025
概括
里芬素和华法林之间的药物相互作用显著减少了华法林的作用.
科学领域:
- 药理学和治疗学 药理学和治疗学
- 药物相互作用 药物相互作用
- 临床药房 临床药房
背景情况:
- 药物相互作用 (DDI) 是药物治疗中的一个主要问题,影响药物的安全性和有效性.
- 利芬素是一种强大的CYP2C9酶诱导剂,已知可以降低抗凝剂华法林的有效性.
- 了解华法林 - 里法素相互作用的临床意义对于患者管理至关重要.
研究的目的:
- 为了调查华法林和利芬皮辛之间的DDI的流行率和临床意义.
- 分析瑞芬素对服用华法林的患者国际正常化比率 (INR) 水平的影响.
- 评估华法林剂量调整在同时治疗期间实现治疗INR目标的有效性.
主要方法:
- 追溯观察性研究分析了来自102名患者的INR数据,这些患者同时接受了华法林和利芬 (2014-2024) 治疗.
- 在基线,联合治疗期间和中止后收集INR测量.
- 分析的重点是INR值的变化和实现目标INR的患者比例.
主要成果:
- 观察到具有临床意义的DDI的高患病率 (86.3%),其特点是INR显著降低 (中位数降至1.3).
- 在达到目标INR的患者中 (55.9%),需要平均增加5.5毫克的华法林剂量,平均稳定时间为18天.
- 尽管调整了剂量,但大约31%的患者未能达到目标INR,这表明潜在的治疗挑战.
结论:
- 华法林和利法素之间的相互作用显著降低了华法林的抗凝剂作用,对患者的健康构成风险.
- 密切监测INR水平和个性化的华法林剂量策略对于同时接受利法素治疗的患者至关重要.
- 这些发现强调需要加强临床警,以有效管理这种DDI并确保治疗性抗凝剂.
相关概念视频
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants
1.3K
Oral anticoagulants are vital tools in preventing and treating blood clotting disorders. This diverse class of medications can be categorized as vitamin K antagonists, exemplified by warfarin, and direct thrombin inhibitors (DTIs), such as dabigatran, as well as factor Xa inhibitors, including rivaroxaban.
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
1.3K
Anticoagulant Drugs: Low-Molecular-Weight Heparins
909
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
909
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
174
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
174
Pharmacovigilance
993
Post-marketing surveillance is a critical component of pharmaceutical regulation, often uncovering unanticipated adverse drug reactions (ADRs) once a drug is widely used over an extended period.
This process, termed pharmacovigilance, aims to detect, evaluate, and minimize harmful effects related to medication use. The data collection for pharmacovigilance depends on spontaneous reporting systems, where healthcare professionals or patients voluntarily report suspected ADRs.
In some cases, there...
This process, termed pharmacovigilance, aims to detect, evaluate, and minimize harmful effects related to medication use. The data collection for pharmacovigilance depends on spontaneous reporting systems, where healthcare professionals or patients voluntarily report suspected ADRs.
In some cases, there...
993
Therapeutic Index
5.1K
The therapeutic index of a drug is a key parameter in pharmacology that quantifies the relative safety of a drug by calculating the ratio between the dose that causes toxicity in half the population (50%) to the dose that proves to be effective for half the population (50%). It provides a spectrum of doses for a particular drug ranging from effective to potentially toxic. To illustrate, consider an anticoagulant agent like warfarin. It possesses a narrow window within its therapeutic index to...
5.1K
Renal Failure: Dose Adjustments
158
In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
158


