背景:表皮生长因子受体(EGFR)基因激活突变的晚期非小细胞肺癌(NSCLC)患者是一个异质性人群,经常发生脑转移(BM)。鉴于新一代靶向疗法在中枢神经系统中的活性,无症状脑转移患者的最佳管理尚不清楚。我们提出了一项个体患者数据(IPD)前瞻性荟萃分析方案,以评估在奥希替尼治疗之前增加立体定向放射外科(SRS)是否会更好地控制颅内转移疾病。这是一个临床相关的问题,将为实践提供信息。
方法:如果随机对照试验包括由EGFR突变型NSCLC引起的BM患者,并且适合在一线和二线环境中接受奥希替尼(P);SRS比较奥希替尼与单独奥希替尼(I,C)和颅内疾病对照包括作为终点(O)。Medline(Ovid)的系统搜索,Embase(Ovid),Cochrane中央对照试验登记册(中央),CINAHL(EBSCO),PsychInfo,将进行ClinicalTrials.gov和WHO的国际临床试验注册平台的搜索门户。将使用Cochrane协作组织推荐的方法进行IPD荟萃分析。主要结果是颅内无进展生存期,根据神经肿瘤学BM标准的反应评估确定。次要结果包括总生存率,全脑放疗的时间,生活质量,和特别关注的不良事件。将探讨预设亚组之间的效果差异。
背景:获得每个试验伦理委员会的批准。结果将与临床医生相关,研究人员,决策者和患者,并将通过出版物传播,演示文稿和媒体发布。
■CRD42022330532。
BACKGROUND: Patients with advanced non-small-cell lung cancer (NSCLC) with activating mutations in the epidermal growth factor receptor (EGFR) gene are a heterogeneous population who often develop brain metastases (BM). The optimal management of patients with asymptomatic brain metastases is unclear given the activity of newer-generation targeted therapies in the central nervous system. We present a protocol for an individual patient data (IPD) prospective meta-analysis to evaluate whether the addition of stereotactic radiosurgery (SRS) before osimertinib treatment will lead to better control of intracranial metastatic disease. This is a clinically relevant question that will inform practice.
METHODS: Randomised controlled trials will be eligible if they include participants with BM arising from EGFR-mutant NSCLC and suitable to receive osimertinib both in the first-line and second-line settings (P); comparisons of SRS followed by osimertinib versus osimertinib alone (I, C) and intracranial disease control included as an endpoint (O). Systematic searches of Medline (Ovid), Embase (Ovid), Cochrane Central Register of Controlled Trials (CENTRAL), CINAHL (EBSCO), PsychInfo, ClinicalTrials.gov and the WHO\'s International Clinical Trials Registry Platform\'s Search Portal will be undertaken. An IPD meta-analysis will be performed using methodologies recommended by the Cochrane Collaboration. The primary outcome is intracranial progression-free survival, as determined by response assessment in neuro-oncology-BM criteria. Secondary outcomes include overall survival, time to whole brain radiotherapy, quality of life, and adverse events of special interest. Effect differences will be explored among prespecified subgroups.
BACKGROUND: Approved by each trial\'s ethics committee. Results will be relevant to clinicians, researchers, policymakers and patients, and will be disseminated via publications, presentations and media releases.
UNASSIGNED: CRD42022330532.