Xue-Jun Dou, Run-Yang Ma, De-Wang Ren, Qiang Liu, Peng Yan
{"title":"Effectiveness and Safety of Anlotinib Combined with PD-1 Blockades in Patients with Previously Immunotherapy Treated Advanced Non-Small Cell Lung Cancer: A Retrospective Exploratory Study.","authors":"Xue-Jun Dou, Run-Yang Ma, De-Wang Ren, Qiang Liu, Peng Yan","doi":"10.2147/LCTT.S444884","DOIUrl":"10.2147/LCTT.S444884","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to investigate the effectiveness and tolerability of anlotinib plus PD-1 blockades in patients with previously immunotherapy treated advanced non-small-cell lung cancer (NSCLC).</p><p><strong>Methods: </strong>A total of 67 patients with previously immunotherapy treated advanced NSCLC who received anlotinib plus PD-1 blockades in clinical practice were screened retrospectively. All the PD-1 blockades used in this study were approved in China and consisted of sintilimab, camrelizumab, tislelizumab and pembrolizumab. Effectiveness and safety of anlotinib plus PD-1 blockades were assessed, and all patients were followed up regularly. Clinical significance between response status to previous immune-related treatment regimens and therapeutic outcomes of anlotinib plus PD-1 blockades was further explored.</p><p><strong>Results: </strong>The best overall response among the 67 patients suggested that a partial response was observed in 16 patients, stable disease was noted in 41 patients and progressive disease was found in 10 patients, which yielded an objective response rate of 23.9% (95% CI: 14.3-35.9%) and a disease control rate of 85.1% (95% CI: 74.3-92.6%). Prognostic outcomes indicated that the median progression-free survival (PFS) was 6.1 months (95% CI: 2.37-9.83) and the median overall survival (OS) was 16.5 months (95% CI: 10.73-22.27). Exploratory analysis highlighted that patients who were intolerant to previous immune-related regimens (17 patients) might have a superior prognosis (median OS: 22.3 months vs 12.5 months, <i>P</i>=0.024). Additionally, adverse reactions with any grades during anlotinib plus PD-1 blockades administration were observed in 62 patients (92.5%), of which 31 patients (46.3%) had ≥grade 3 adverse reactions. Most common adverse reactions were fatigue, hypertension, diarrhea and hepatotoxicity.</p><p><strong>Conclusion: </strong>Anlotinib plus PD-1 blockades demonstrated promising effectiveness and tolerable safety in patients with previously immunotherapy treated advanced NSCLC. Those who were intolerant to previous immune-related regimens might benefit significantly from treatment with anlotinib plus PD-1 blockades. This conclusion should be confirmed in future studies.</p>","PeriodicalId":18066,"journal":{"name":"Lung Cancer: Targets and Therapy","volume":"15 ","pages":"29-40"},"PeriodicalIF":3.6,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10979677/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140336193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Overcoming Central β-Sheet #6 (Cβ6) <i>ALK</i> Mutation (L1256F), <i>TP53</i> Mutations and Short Forms of <i>EML4-ALK v3/b</i> and <i>v5a/b</i> Splice Variants are the Unmet Need That a Re-Imagined 5th-Generation (5G) ALK TKI Must Deliver.","authors":"Alexandria T M Lee, Sai-Hong Ignatius Ou","doi":"10.2147/LCTT.S446878","DOIUrl":"10.2147/LCTT.S446878","url":null,"abstract":"<p><p>Despite the development and approval of seven anaplastic lymphoma kinase (ALK) tyrosine kinase inhibitors (TKIs) spanning over three \"generations\" since the discovery of <i>ALK</i> fusion positive (<i>ALK+</i>) non-small cell lung cancer (NSCLC), there remains intrinsic and acquired resistances to these approved TKIs. Currently, a fourth-generation (4G) ALK TKI, NVL-655, is being developed to attack some of the unmet needs such as compound resistance mutations <i>in cis</i>. However, <i>EML4-ALK variant 3</i> and <i>TP53</i> mutations are intrinsic genomic alterations that negatively modulate efficacy of ALK TKIs. Potentially, in the shifting landscape where lorlatinib should be the first-line ALK TKI of choice based on the CROWN trial, the central β-sheet #6 (Cβ6) mutation <i>ALK L1256F</i> will be the potential acquired resistance mutation to lorlatinib which may be resistant to current ALK TKIs. Here we opine on what additional capacities a putative fifth-generation (5G) ALK TKI will need to possess if it can be achieved in one single molecule. We propose randomized trial schemas targeting some of the intrinsic resistance mechanisms that will lead to approval of a prototypic fifth-generation (5G) ALK TKI and actually be beneficial to <i>ALK+</i> NSCLC patients rather than just design a positive pivotal superiority trial for the sole purpose of drug approval.</p>","PeriodicalId":18066,"journal":{"name":"Lung Cancer: Targets and Therapy","volume":"15 ","pages":"19-27"},"PeriodicalIF":3.6,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10908247/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140022184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Innovative Techniques in Video-Assisted Thoracoscopic Surgery: Lu's Approach.","authors":"Baofeng Wang, Jiang Wang, Tongyu Sun, Yilin Ding, Shasha Li, Hengxiao Lu","doi":"10.2147/LCTT.S446418","DOIUrl":"10.2147/LCTT.S446418","url":null,"abstract":"<p><strong>Purpose: </strong>Lu's approach for video-assisted thoracoscopic surgery (LVATS), which derives from Uniportal Video-Assisted Thoracoscopic Surgery(UVATS), is a novel surgical approach for VATS and carries out micro-innovation for lung cancer resection. The objective of this study is to elucidate the safety, feasibility, and efficacy of this novel surgical approach.</p><p><strong>Patients and methods: </strong>The clinical data of patients with non-small cell lung cancer (NSCLC) who underwent a curative thoracoscopic lobectomy between Mar. 2021 and Mar. 2022, were retrospectively collected and analyzed. Patients were divided into the LVATS group and the UVATS group. Propensity score matching (PSM) was used to reduce selection bias and create two comparable groups. Perioperative variables were compared, and a p-value < 0.05 was deemed statistically significant.</p><p><strong>Results: </strong>A total of 182 patients were identified, among whom 86 patients underwent LVATS and 96 UVATS. Propensity matching produced 62 pairs in this retrospective study. There were no deaths during perioperative period. Patients in the LVATS group experienced a shorter operation time (88 (75, 106) VS 122 (97, 144) min, P <0.001), less intraoperative blood loss (20 (20, 30) VS 25 (20, 50) mL, P = 0.021), shorten incision length (2.50 (2.50, 2.50) VS 3.00 (3.00, 3.50) cm, P <0.001), and more drainage volume (460 (310, 660) VS 345 (225, 600) mL, P = 0.041) than patients in the UVATS group. There was not significant difference in the lymph node stations dissected (5 (4, 5) VS 5 (4, 5), P = 0.436), drainage duration (3 (3, 4) VS 3 (3, 4) days, P =0.743), length of postoperative hospital stay (4 (4, 5) VS 4 (4, 6) days, P = 0.608), VAS on the POD1 (4 (4, 4) VS 4 (4, 4), P=0.058) and POD3 (3 (3, 4) VS 4 (3, 4), P=0.219), and incidence of postoperative complications (P=0.521) between the two groups.</p><p><strong>Conclusion: </strong>Lu's approach for video-assisted thoracoscopic lobectomy is safe and feasible, potentially reducing surgery time, incision length, and intraoperative blood loss.</p>","PeriodicalId":18066,"journal":{"name":"Lung Cancer: Targets and Therapy","volume":"15 ","pages":"9-17"},"PeriodicalIF":3.6,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10848822/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139702880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stage as the Sole \"Biomarker\" for Adjuvant Pembrolizumab in Resected Stage IB to IIIA NSCLC without Considerations for PD-L1 Expression Level, ALK/EGFR Mutational Status, and Prior Adjuvant Chemotherapy per FDA Approval Indications of PEARLS/Keynote-091?","authors":"Misako Nagasaka, Saihong Ignatius Ou","doi":"10.2147/LCTT.S433195","DOIUrl":"https://doi.org/10.2147/LCTT.S433195","url":null,"abstract":"<p><p>One of the most recent advancements in NSCLC was the approval of immunotherapy in the adjuvant setting. Both atezolizumab and pembrolizumab have been approved for the use in early stage NSCLC patients post resection. As it broadens the options for our patients, multiple approvals in the same setting are generally welcomed. However, there were important differences in the two studies that led to the approvals and the data could be confusing. Here we review IMpower010, the study that led to the first approval of atezolizumab in the adjuvant setting with comparison to the Keynote-091 study evaluating pembrolizumab in the adjuvant setting, gaining the most recent FDA approval for adjuvant use in early stage NSCLC.</p>","PeriodicalId":18066,"journal":{"name":"Lung Cancer: Targets and Therapy","volume":"14 ","pages":"101-109"},"PeriodicalIF":3.6,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10725831/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138796896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Single-Cell Profiling of Tumor-Associated Neutrophils in Advanced Non-Small Cell Lung Cancer.","authors":"Jinpeng Shi, Jiayu Li, Haowei Wang, Xuefei Li, Qi Wang, Chao Zhao, Lei Cheng, Ruoshuang Han, Peixin Chen, Haoyue Guo, Zhuoran Tang, Caicun Zhou, Zhemin Zhang, Fengying Wu","doi":"10.2147/LCTT.S430967","DOIUrl":"https://doi.org/10.2147/LCTT.S430967","url":null,"abstract":"<p><strong>Purpose: </strong>Neutrophils act as a non-negligible regulator in the initiation and progression of malignancies, playing bifacial roles in the process. Thus, to understand the heterogeneity of tumor-associated neutrophils (TANs) comprehensively in advanced non-small cell lung cancer (NSCLC) at single-cell resolution is necessary and urgent.</p><p><strong>Materials and methods: </strong>We applied single-cell RNA-sequencing (scRNA-seq) to portray the subtype-specific transcriptome landscape of TANs in advanced NSCLC using nine freshly obtained specimens. The scRNA-seq data were further processed for pseudo-time analysis to depict the developmental trajectory of TANs. Meanwhile, the interplay between TANs and other cell types within tumor microenvironment (TME) was revealed by intercellular interaction analysis.</p><p><strong>Results: </strong>Seven distinct TAN subtypes were defined, of which, the N<sub>3</sub> cluster was considered inflammatory phenotype expressing genes encoding multiple chemotactic cytokines, and correlated with inferior overall survival, indicating that N<sub>3</sub> might be a pro-tumorigenic TAN subtype. N<sub>1</sub> and N<sub>5</sub> clusters were considered to be well differentiated and mature neutrophils based on <i>CXCR2</i> expression and pseudo-time patterns, and both accounted for relatively high proportions in lung adenocarcinoma. In addition, genes related to neutrophil differentiation were discovered. We also found that TAN subtypes interacted most closely with macrophages through chemokine signaling pathways within TME.</p><p><strong>Conclusion: </strong>Our study refined TAN subtypes and mapped the transcriptome landscape of TANs at single-cell resolution in advanced NSCLC, collectively indicating the heterogeneity of TANs in NSCLC. Neutrophil differentiation- and maturation-related genes were also discovered, which shed light on different functions of TAN subclones in tumor immune escape, and may further provide novel targets for immunotherapy.</p>","PeriodicalId":18066,"journal":{"name":"Lung Cancer: Targets and Therapy","volume":"14 ","pages":"85-99"},"PeriodicalIF":3.6,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10676108/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138460706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Li Wang, Fei Quan, Zhen Guo, Zhongyu Lu, Duoxia Yang, Meiqi Shi
{"title":"Co-Occurring EGFR S645C and EGFR L858R in a Patient with Lung Adenocarcinoma Induced Primary Resistance to Osimertinib.","authors":"Li Wang, Fei Quan, Zhen Guo, Zhongyu Lu, Duoxia Yang, Meiqi Shi","doi":"10.2147/LCTT.S431252","DOIUrl":"10.2147/LCTT.S431252","url":null,"abstract":"<p><p>Approximately 10-20% of patients demonstrate primary resistance to EGFR-TKIs, and different EGFR mutations vary in sensitivity to EGFR-TKIs. We report a case of a 78-year-old male with lung adenocarcinoma that EGFR L858R (AF = 1.32%) coexisting with EGFR S645C (AF = 7.13%) in his diagnosed tissues analyzed by NGS. The patient was primarily resistant to first-line osimertinib and rapidly progressed after pembrolizumab in combination with pemetrexed and bevacizumab, as demonstrated by persistently elevated CEA levels during treatment. ctDNA-based NGS analysis revealed loss of EGFR L858R while persistence of highly abundant EGFR S645C in the pleural fluid and plasma after treatment, suggesting that EGFR L858R may be a subclone. We provide the first clinical evidence of the primary resistance of EGFR S645C to osimertinib and emphasize the importance of identifying clones and subclones. Our patient did not respond to immunotherapy either, and preclinical studies have shown that EGFR S645C activates the MEK signaling pathway, the combination of EGFR-TKIs and MEK inhibitors may be effective.</p>","PeriodicalId":18066,"journal":{"name":"Lung Cancer: Targets and Therapy","volume":"14 ","pages":"79-84"},"PeriodicalIF":3.6,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/6e/ba/lctt-14-79.PMC10576154.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41236581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ORIENT-31 as the Sakigake “Charging Samurai” Born of IMpower150 but Will MARIPOSA-2 IMPRESS in the “Meiji Modernization” of Post-3G EGFR TKI Progression?","authors":"M. Nagasaka, S. Ou","doi":"10.2147/LCTT.S355503","DOIUrl":"https://doi.org/10.2147/LCTT.S355503","url":null,"abstract":"Abstract Tyrosine kinase inhibitors (TKIs) have become the preferred first line therapy for those patients with non-small cell lung cancer (NSCLC) harboring epidermal growth factor receptor (EGFR) mutations. Given superior progression free survival (PFS) and overall survival (OS) when compared to earlier generations, third generation EGFR TKIs have become the first choice therapy in many parts of the world. Even though multiple strategies are in development to target both “on-target” and “off-target” resistance, the continuation of EGFR TKIs at the time of progression remains a controversial topic. This commentary focuses on both the ”classic” clinical trials of IMpower150 and IMPRESS and compares them to the recently reported ORIENT-31 and ongoing MARIPOSA-2 to discuss the future therapeutic strategies in the setting of progression post-third generation EGFR TKIs.","PeriodicalId":18066,"journal":{"name":"Lung Cancer: Targets and Therapy","volume":"21 1","pages":"13 - 21"},"PeriodicalIF":3.6,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75702529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An Update on Emerging Therapeutic Options for Malignant Pleural Mesothelioma","authors":"A. Davis, H. Ke, S. Kao, N. Pavlakis","doi":"10.2147/LCTT.S288535","DOIUrl":"https://doi.org/10.2147/LCTT.S288535","url":null,"abstract":"Abstract The treatment paradigm for malignant pleural mesothelioma (MPM) has changed little in the last 18 years. Radical intent treatment, consisting of surgical resection, radiotherapy and chemotherapy, has been offered to a highly select few; however, there is little randomised evidence to validate this approach. Prior to 2020 chemotherapy with platinum and an anti-folate was the only intervention with randomised evidence to demonstrate improved overall survival (OS) in MPM. No systemic therapy had been demonstrated to improve OS in the second line setting until 2020. The publication of the Checkmate 743 trial in 2021 demonstrated a survival benefit of combination immunotherapy over standard chemotherapy in newly diagnosed patients with MPM. This finding was shortly followed by the CONFIRM trial which demonstrates a modest but significant survival benefit of second line nivolumab versus placebo in patients having previously received standard chemotherapy. The results of these trials, recent biomarker directed therapy and chemotherapy adjuncts are discussed within this review. The integration of immunotherapy for the few patients in whom radical surgical therapy is intended is currently the subject of clinical trials and offers the prospect of improving outcomes in this rare but devastating disease.","PeriodicalId":18066,"journal":{"name":"Lung Cancer: Targets and Therapy","volume":"23 1","pages":"1 - 12"},"PeriodicalIF":3.6,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83955144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Nagasaka, Nadine H Abdallah, Marcus Crosby, Nithin Thummala, Dhaval Patel, A. Wozniak, S. Gadgeel, J. Abrams, A. Sukari
{"title":"A retrospective study evaluating the pretreatment tumor volume (PTV) in non-small cell lung cancer (NSCLC) as a predictor of response to program death-1 (PD-1) inhibitors","authors":"M. Nagasaka, Nadine H Abdallah, Marcus Crosby, Nithin Thummala, Dhaval Patel, A. Wozniak, S. Gadgeel, J. Abrams, A. Sukari","doi":"10.2147/LCTT.S219886","DOIUrl":"https://doi.org/10.2147/LCTT.S219886","url":null,"abstract":"Introduction of hypothesis Little information is available regarding the imaging characteristics that assist in differentiating responders from non-responders. We hypothesized that patients with higher pretreatment tumor volume (PTV) would have lower response rates and shorter overall survival (OS). Methods Data from patients who received at least one dose of program death-1 (PD-1) inhibitors before August 31, 2016 were captured from our institution’s pharmacy database. The primary objective was to determine the association of PTV with best response, evaluated utilizing RECIST v1.1 criteria. Secondary objectives were estimation of progression-free survival (PFS) and OS. PTV was measured using the Philips Intellispace Multi-Modality Tumor Tracking application. Results 116 non-small cell lung cancer (NSCLC) patients were evaluated. 66% patients had adenocarcinoma, 28% had squamous cell carcinoma and 5% had poorly differentiated NSCLC. Median PTV was 53.7 cm3 (95% CI: 13.3–107.9). Only one individual had no metastases and the remainder had M1 disease; 38% M1a, 10% M1b, 51% M1c. Most (79%) were previously treated. There were no complete responses; among those followed for at least 6 weeks, 26% had a partial response, 39% stable disease and 34% PD; 4% had no recorded response. There were no strong associations of PTV with any of the demographic or clinical characteristics. There was no association between PTV and OS (HR 1.2, P=0.26) or PFS (HR 1.1, P=0.47). Liver metastasis was associated with shorter survival (HR=2.8, P=0.05). Conclusion PTV in NSCLC did not prove to be a predictor of response to PD-1 inhibitors but having liver metastasis was associated with significantly shorter survival.","PeriodicalId":18066,"journal":{"name":"Lung Cancer: Targets and Therapy","volume":"27 1","pages":"95 - 105"},"PeriodicalIF":3.6,"publicationDate":"2019-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87017111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Madhu M Ouseph, A. Taber, H. Khurshid, R. Madison, B. Aswad, M. Resnick, E. Yakirevich, Siraj M. Ali, Nimesh R. Patel
{"title":"TKI-resistant ALK-rearranged lung adenocarcinoma with secondary CTNNB1 p.S45V and tertiary ALK p.I1171N mutations","authors":"Madhu M Ouseph, A. Taber, H. Khurshid, R. Madison, B. Aswad, M. Resnick, E. Yakirevich, Siraj M. Ali, Nimesh R. Patel","doi":"10.2147/LCTT.S212406","DOIUrl":"https://doi.org/10.2147/LCTT.S212406","url":null,"abstract":"Abstract Anaplastic lymphoma kinase (ALK)-rearranged non-small cell lung cancer (NSCLC) is an important molecular subgroup of tumors that are typically sensitive to tyrosine kinase inhibitors (TKIs). Although a substantial portion of patients benefit from TKIs, this approach is complicated by intrinsic and acquired resistance. We report a patient with ALK-rearranged NSCLC who showed an initial response to targeted therapy, but developed resistance to multiple TKIs. Serial comprehensive genomic profiling (CGP) was performed at four independent points during the clinical course. We review the pathology and clonal progression of the tumor, with CGP identifying a secondary CTNNB1 p.S45V mutation after the initiation of targeted therapy, followed by tertiary ALK p.I1171N. The presence of an alteration in a second oncogenic driver gene suggests a possible mechanism for resistance, and a secondary therapeutic target. Due to the involvement of Wnt signaling in the pathogenesis of many tumors and its association with immune evasion, a variety of therapeutic strategies are being developed to target this pathway. This case exemplifies the challenges of targeted therapeutics in the face of tumor progression, as well as the increasing role of genomics in understanding tumor biology.","PeriodicalId":18066,"journal":{"name":"Lung Cancer: Targets and Therapy","volume":"22 1","pages":"81 - 86"},"PeriodicalIF":3.6,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82631053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}