Adjuvant EGFR TKI therapy for resectable non-small cell lung cancer: new era for personalized medicine.
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ABSTRACT:
SUBMITTER: Shen P
PROVIDER: S-EPMC5906233 | biostudies-literature | 2018 Mar
REPOSITORIES: biostudies-literature
Publications
Adjuvant EGFR TKI therapy for resectable non-small cell lung cancer: new era for personalized medicine.
Journal of thoracic disease 20180301 3
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| S-EPMC6987352 | biostudies-literature
Project description:PurposeThe great efficacy of EGFR tyrosine kinase inhibitors (EGFR-TKIs) has been identified in patients with advanced non-small-cell lung cancer (NSCLC) who harbor EGFR mutations. However, it has not yet been established in postoperative adjuvant therapy.Patients and methodsTo compare the prognosis and toxicity of EGFR-TKI-based adjuvant therapy and non-EGFR-TKI-based adjuvant therapy in resected NSCLC with sensitive EGFR mutations, we performed this meta-analysis of all eligible randomized controlled trials (RCTs).ResultsA comprehensive literature search of electronic databases (from inception to December 31, 2017) was performed. Additionally, abstracts presented at the American Society of Clinical Oncology conferences and World Conference on Lung Cancer held between January 2000 and November 2017 were searched to identify relevant trials. Disease-free survival (DFS), overall survival (OS), and grade 3 or 4 toxicities were analyzed. Five RCTs were selected, and 560 participants were included. This meta-analysis demonstrated that EGFR-TKI-based adjuvant therapy was associated with better DFS compared with non-EGFR-TKI-based therapy (HR =0.52, 95% CI 0.34-0.78, P=0.002). Pooled estimate has showed the trend of superiority of EGFR-TKI-based therapy in the aspect of OS (HR =0.65, 95% CI 0.22-1.91, P=0.43); however, the difference was not significant. The incidence rate of grade 3-4 toxicities of EGFR-TKI-based regimens was significantly higher for rash (OR =10.17, 95% CI 2.37-43.63, P=0.002) but lower for vomiting (OR =0.08, 95% CI 0.01-0.61, P=0.02).ConclusionEGFR-TKI-based therapy was associated with better DFS compared with non-EGFR-TKI-based adjuvant therapy in patients with NSCLC harboring EGFR mutations. A trend was found that EGFR-TKI-based regimen improved the OS, though the difference was not significant. Although more OS data are needed, EGFR-TKI-based treatment has the potential to be an alternative of adjuvant therapy for NSCLC with a sensitive EGFR mutation.
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| S-EPMC7653106 | biostudies-literature
Project description:The Lung Adjuvant Cisplatin Evaluation (LACE) meta-analysis and the meta-analysis of individual participant data reported by non-small cell lung cancer (NSCLC) Meta-analysis Collaborative Group in neo-adjuvant setting validated respectively that adjuvant and neoadjuvant chemotherapy would significantly improve overall survival (OS) and recurrence-free survival for resectable NSCLC. However, chemotherapy has reached a therapeutic plateau. It has been confirmed that epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) targeting therapy provides a dramatic response to patients with advanced EGFR-mutation positive NSCLC. Researchers have paid more attention to exploring applications of TKIs to early resectable NSCLCs. Several studies on adjuvant TKI treatment concluded its safety and feasibility. But there existed certain limitations of these studies as inference factors to interpret data accurately: the BR19 study recruited patients among which almost 52% had stage IB and only 15 (3.0%, 15/503) had been confirmed with EGFR-mutant type; retrospective studies performed at Memorial Sloan Kettering Cancer Center (MSKCC) selected EGFR mutant-type NSCLC patients but couldn't avoid inherent defects inside retrospective researches; the RADIANT study revised endpoints from targeting at EGFR immunohistochemistry (IHC)+ and/or fluorescence in situ hybridization (FISH)+ mutation to only EGFR IHC+ mutation, leading to selective bias; despite that the SELECT study validated efficacy of adjuvant TKI and second round of TKI after resistance occurred, a single-arm clinical trial is not that persuasive in the absence of comparison with chemotherapy. Taking all these limitations into account, CTONG1104 in China and IMPACT in Japan have been conducted and recruiting patients to offer higher level of evidences to explore efficacy of preoperative TKI therapy for early resectable EGFR mutation positive NSCLC patients (confirmed by pathological results of tumor tissue or lymph node biopsy). On the other hand, case reports and several phase II clinical trials with small sample size tried to elbow their way on respect of preoperative TKI treatment and advised that TKI tended to improve response rate. However, no data on survival rate was present. The first phase II study of biomarker-guided neoadjuvant therapy for stage IIIA-N2 NSCLC patients stratified by EGFR mutation status, sponsored by CSLC0702, showed erlotinib tended to improve response rate, but failed to show benefits of disease-free survival (DFS) or OS. Subsequently, CTONG1103 was designed to investigate efficacy of erlotinib vs. combination of gemcitabine/cisplatin (GC) as neoadjuvant treatment in stage IIIA-N2 NSCLC with sensitizing EGFR mutation in exon 19 or 21. All these ongoing trials should be worthy of our expect to provide convincing evidences for customized therapy for patients with resectable NSCLC.
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| S-EPMC10618502 | biostudies-literature
Project description:BackgroundAdjuvant platinum-based chemotherapy is standard of care for patients with resected stage IIA/B or IIIA NSCLC. Overall survival is suboptimal due to the high metastatic potential of early-stage NSCLC and there is substantial clinical need for additional efficacious adjuvant treatment options.MethodsPubMed (all time to 4 February 2021) and related conference databases were searched using the key search terms 'NSCLC' AND 'Adjuvant' AND 'EGFR inhibitor' OR respective aliases.ResultsThe literature search identified five adjuvant phase III trials of EGFR inhibitors in early NSCLC. The earlier BR19 and RADIANT trials failed to demonstrate statistically significant improvements in either OS or DFS for gefitinib and erlotinib, respectively, compared with placebo in patients with EGFR mutation-unselected NSCLC. Three subsequent phase III trials, ADAURA, CTONG1104, and IMPACT, were conducted in EGFR-mutant NSCLC. IMPACT showed no statistically significant DFS benefit for adjuvant gefitinib, and although CTONG1104 did report improved DFS for gefitinib (HR = 0.56, p = 0.001), this benefit was not enduring, resulting in comparable 5-year DFS rates. Statistically significant and clinically meaningful DFS benefits were observed in ADAURA for osimertinib compared with placebo in patients with stage IB-IIIA and II-IIIA disease (7th Edition Staging), and these benefits, coupled with a meaningful improvement in 2-year CNS DFS and favorable HRQoL, make osimertinib an important new treatment option for the adjuvant treatment of EGFR exon 19 deletion or exon 21 L858R-mutated stage II-IIIA NSCLC (UICC/AJCC 8th Edition Staging), with final mature OS data eagerly awaited.ConclusionAdjuvant osimertinib used alone or following platinum-based chemotherapy is now recommended in patients with stage II-IIIA EGFR-mutated NSCLC.
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Project description:Over the past decade, patients with advanced non-small-cell lung cancer (NSCLC) have witnessed substantial advances in regards to therapeutic alternatives. Among newly developed agents, angiogenesis inhibitors were extensively tested in different settings and have produced some favorable outcomes despite several shortcomings. Bevacizumab is the most examined agent in this context and has demonstrated significant survival benefits when combined with standard chemotherapy in eligible patients. Preliminary results on the addition of bevacizumab to erlotinib in patients with EGFR-mutated NSCLC seem promising. Other antiangiogenic agents were also tested, but ramucirumab and nintedanib are the only agents with a positive impact on survival. More recently, immune checkpoint inhibitors (ICIs) have had considerable success due to their prolonged durations of response, yet response rates are still deemed suboptimal, and various combination therapies are being tested in an effort to improve efficacy. Preclinical evidence suggests an immunosuppressive effect of pro-angiogenic factors, which sets up a plausible rationale for combining ICIs and antiangiogenic agents. Herein, we review the landmark data supporting the success of angiogenesis inhibitors, and we discuss the potential for combination with immunotherapy and targeted agents.
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Project description:Although recent advances in molecular targeted therapy and immuno-oncology have revolutionized the landscape of lung cancer therapeutics, cytotoxic chemotherapy remains an essential component of lung cancer treatment. Extensive evidence has demonstrated the clinical benefit of chemotherapy, either alone or in combination with other treatment modalities, on survival and quality of life of patients with early and advanced lung cancer. Combinational approaches with other classes of anti-neoplastic agents and new drug-delivery systems have revealed promising data and are areas of active investigation. Chemotherapy is recommended as a standard of care in patients that have progressed after tyrosine kinase inhibitors or immune checkpoint inhibitors. Chemotherapy remains the fundamental means of lung cancer management and keeps expanding its clinical implication. This review will discuss the current position and future role of chemotherapy, and specific consideration for its clinical application in the era of precision medicine.
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