Cutts Christopher, LaCaze Adam, Tett Susan
Queensland Rural Medical Support Agency, 467 Enoggera Road, Alderley, Queensland 4051, Australia.
Br J Clin Pharmacol. 2002 Nov;54(5):522-7. doi: 10.1046/j.1365-2125.2002.01666.x.
The new cyclooxygenase-2 (COX-2) selective inhibitors, celecoxib (Celebrex) and rofecoxib (Vioxx), have been widely prescribed since their launch. No reviews currently appear in the literature of prescribing patterns in Australia. This paper describes a self-audit of the clinical use of selective COX-2 inhibitor therapy undertaken with rural general practitioners (GPs) in Australia.
A structured audit form was developed and distributed to interested GPs. The form was self-administered and focused on issues about COX-2 inhibitors and the types of patients who were receiving them, e.g. indications, patient demographics, risk factors and drug interactions.
A total of 627 patients were recruited (569 celecoxib and 58 rofecoxib). A range of doses was prescribed. Osteoarthritis was the most common indication (68.1%). Risk factors known for the nonselective nonsteroidal anti-inflammatory drugs were identified in 65.1% of patients, with the most common being advanced age, hypertension and previous peptic ulcer disease. Potential drug interactions were common. A variety of reasons for initiation of therapy was identified; these included perceived increased efficacy, safety and failure of other treatment.
These results show that COX-2 inhibitors are being prescribed for patients with multiple risk factors that may place the patient at increased risk of adverse drug reactions to a COX-2 inhibitor. The perception of improved safety and efficacy was common and is of concern. Limitations of the study include the reliance on self-reporting.
新型环氧化酶-2(COX-2)选择性抑制剂塞来昔布(西乐葆)和罗非昔布(万络)自上市以来已被广泛处方。目前澳大利亚尚无关于其处方模式的文献综述。本文描述了一项针对澳大利亚农村全科医生(GP)使用选择性COX-2抑制剂治疗的自我审计。
设计了一份结构化审计表格并分发给感兴趣的全科医生。该表格由医生自行填写,重点关注有关COX-2抑制剂以及接受该抑制剂治疗的患者类型的问题,例如适应证、患者人口统计学特征、风险因素和药物相互作用。
共招募了627名患者(569名使用塞来昔布,58名使用罗非昔布)。所开剂量范围各异。骨关节炎是最常见的适应证(68.1%)。65.1%的患者存在已知的非选择性非甾体抗炎药的风险因素,最常见的是高龄、高血压和既往消化性溃疡病。潜在的药物相互作用很常见。确定了开始治疗的多种原因;这些原因包括认为疗效增加、安全性提高以及其他治疗失败。
这些结果表明,COX-2抑制剂正被用于患有多种风险因素的患者,这些因素可能使患者对COX-2抑制剂发生药物不良反应的风险增加。认为安全性和疗效有所改善的情况很常见,这令人担忧。该研究的局限性包括依赖自我报告。