Lung cancer : journal of the International Association for the Study of Lung Cancer
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Lung cancer screening with low-dose CT (LDCT) is already available in certain parts of the world, such as the United States, but not yet in Europe. The recently published European position statement on lung cancer screening has recommended planning for implementation of screening to start within 18-months [1]. Pilot European programmes are already underway, primarily in the United Kingdom (UK), delivering lung cancer screening to their local populations. This review article acknowledges the evidence base for LDCT screening and will discuss the challenges that still need to be overcome in an attempt to answer the question: are we ready to implement in Europe?
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This network meta-analysis (NMA), based on 12 phase-III studies with 9,236 metastatic NSCLC patients, aims to compare the efficacy of treatments including at least one immune-checkpoint inhibitor (ICI) with or without chemotherapy, as frontline therapy for advanced NSCLC patients. The NMA includes direct randomized evidence on treatments of interest along with indirect evidence from randomized studies with chemotherapy as the common comparator. Studies were identified by searching PubMed, and the abstracts of most recent main oncology congresses. ⋯ Of note, ABC is evaluated only for OS in non-squamous patients while the pembrolizumab-monotherapy PFS benefit and the atezolizumab/chemotherapy OS benefit are probably under-estimated since most of the data stems from non-significant interim analyses of ongoing studies [KN042;IM131/132/150]. In conclusion, the addition of chemotherapy to ICIs enhanced their treatment efficacy as first-line treatment for advanced NSCLC patients. The combination of chemotherapy with either pembrolizumab or atezolizumab show consistently higher efficacy than chemotherapy-alone or any other ICI-combination or monotherapy, particularly in non-squamous patients.