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Histological Assessment and Interobserver Agreement in Major Pathologic Response for Non–Small Cell Lung Cancer with Neoadjuvant Therapy
Sungjin Kim, Jeonghyo Lee, Jin-Haeng Chung
Received July 19, 2024  Accepted September 8, 2024  Published online September 9, 2024  
DOI: https://doi.org/10.4143/crt.2024.670    [Epub ahead of print]
AbstractAbstract PDFSupplementary Material
Purpose
Major pathologic response (MPR), defined as ≤ 10% of residual viable tumor (VT), is a prognostic factor in non–small cell lung cancer (NSCLC) after neoadjuvant therapy. This study evaluated interobserver reproducibility in assessing MPR, compared area-weighted and unweighted VT (%) calculation, and determined optimal VT (%) cutoffs across histologic subtypes for survival prediction.
Materials and Methods
This retrospective study included 108 patients with NSCLC who underwent surgical resection after neoadjuvant chemotherapy or chemoradiation at Seoul National University Bundang Hospital between 2009-2018. Three observers with varying expertise independently assessed tumor bed and VT (%) based on digital whole-slide images.
Results
Reproducibility in tumor bed delineation was reduced in squamous cell carcinoma (SqCC) with smaller tumor bed, although overall concordance was high (Dice coefficient, 0.96; intersection-over-union score, 0.92). Excellent agreement was achieved for VT (%) (intraclass correlation coefficient=0.959) and MPR using 10% cutoff (Fleiss’ kappa=0.911). Shifting between area-weighted and unweighted VT (%) showed only one case differing in MPR status out of 81 cases. The optimal cutoff was 10% for both adenocarcinoma (ADC) and SqCC. MPR+ was observed in 18 patients (17%), with SqCC showing higher MPR+ rates (p=0.044), lower VT (%) (p < 0.001), and better event-free survival (p=0.015) than ADC. MPR+ significantly improved overall survival (p=0.023), event-free survival (p=0.001), and lung cancer-specific survival (p=0.012).
Conclusion
While MPR assessment demonstrated robust reproducibility with minimal impact from the tumor bed, attention is warranted when evaluating smaller tumor beds in SqCC. A 10% cutoff reliably predicted survival across histologic subtypes with higher interobserver reproducibility.
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Lung and Thoracic cancer
Differences in the Prognostic Impact between Single-Zone and Multi-Zone N2 Node Metastasis in Patients with Station-Based Multiple N2 Non–Small Cell Lung Cancer
Shia Kim, Geun Dong Lee, SeHoon Choi, Hyeong Ryul Kim, Yong-Hee Kim, Dong Kwan Kim, Seung-Il Park, Jae Kwang Yun
Cancer Res Treat. 2025;57(1):95-104.   Published online July 22, 2024
DOI: https://doi.org/10.4143/crt.2024.120
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
The International Association for the Study of Lung Cancer suggests further subdivision of pathologic N (pN) category in non–small-cell lung cancer (NSCLC) by incorporating the location and number of involved lymph node (LN) stations. We reclassified patients with the station-based N2b disease into single-zone and multi-zone N2b groups and compared survival outcomes between the groups.
Materials and Methods
This retrospective study included patients with pN2 NSCLC who underwent lobectomy from 2006 to 2019. The N2 disease was subdivided into four categories: single-station N2 without N1 (N2a1), single-station N2 with N1 (N2a2), multiple-station N2 with single zone involvement (single-zone N2b), and multiple-station N2 with multiple zone involvement (multi-zone N2b). LN zones included in the subdivision of N2 disease were upper mediastinal, lower mediastinal, aortopulmonary, and subcarinal.
Results
Among 996 eligible patients, 211 (21.2%), 394 (39.6%), and 391 (39.3%) were confirmed to have pN2a1, pN2a2, and pN2b disease, respectively. In multivariable analysis after adjustment for sex, age, pT category, and adjuvant chemotherapy, overall survival was significantly better with single-zone N2b disease (n=125, 12.6%) than with multi-zone N2b disease (n=266, 26.7%) (hazard ratio [HR], 0.67; 95% confidence interval [CI], 0.49 to 0.90; p=0.009) and was comparable to that of N2a2 disease (HR, 1.12; 95% CI, 0.83 to 1.49; p=0.46).
Conclusion
Prognosis of single-zone LN metastasis was better than that of multiple-zone LN metastasis in patients with N2b NSCLC. Along with the station-based N descriptors, zone-based descriptors might ensure optimal staging, enabling the most appropriate decision-making on adjuvant therapy for patients with pN2 NSCLC.
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Factors Associated with Postoperative Recurrence in Stage I to IIIA Non–Small Cell Lung Cancer with Epidermal Growth Factor Receptor Mutation: Analysis of Korean National Population Data
Kyu Yean Kim, Ho Cheol Kim, Tae Jung Kim, Hong Kwan Kim, Mi Hyung Moon, Kyongmin Sarah Beck, Yang Gun Suh, Chang Hoon Song, Jin Seok Ahn, Jeong Eun Lee, Jae Hyun Jeon, Chi Young Jung, Jeong Su Cho, Yoo Duk Choi, Seung Sik Hwang, Chang Min Choi, Seung Hun Jang, Jeong Uk Lim, Korean Association for Lung Cancer, Korea Central Cancer Registry
Cancer Res Treat. 2025;57(1):83-94.   Published online July 10, 2024
DOI: https://doi.org/10.4143/crt.2024.073
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Recent development in perioperative treatment of resectable non–small cell lung cancer (NSCLC) have changed the landscape of early lung cancer management. The ADAURA trial has demonstrated the efficacy of adjuvant osimertinib treatment in resectable NSCLC patients; however, studies are required to show which subgroup of patients are at a high risk of relapse and require adjuvant epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor treatment. This study evaluated risk factors for postoperative relapse among patients who underwent complete resection.
Materials and Methods
Data were obtained from the Korean Association for Lung Cancer Registry (KALC-R), a database created using a retrospective sampling survey by the Korean Central Cancer Registry (KCCR) and the Lung Cancer Registration Committee.
Results
A total of 3,176 patients who underwent curative resection was evaluated. The mean observation time was approximately 35.4 months. Among stage I to IIIA NSCLC patients, the EGFR-mutant subgroup included 867 patients, and 75.2%, 11.2%, and 11.8% were classified as stage I, stage II, and stage III, respectively. Within the EGFR-mutant subgroup, 44 (5.1%) and 121 (14.0%) patients showed early and late recurrence, respectively. Multivariate analysis on association with postoperative relapse among the EGFR-mutant subgroup showed that age, pathologic N and TNM stages, pleural invasion status, and surgery type were independent significant factors.
Conclusion
Among the population that underwent complete resection for early NSCLC with EGFR mutation, patients with advanced stage, pleural invasion, or limited resection are more likely to show postoperative relapse.
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Adjuvant Pembrolizumab in Patients with Stage IIIA/N2 Non–Small Cell Lung Cancer Completely Resected after Neoadjuvant Concurrent Chemoradiation: A Prospective, Open-Label, Single-Arm, Phase 2 Trial
Junghoon Shin, Sehhoon Park, Kyung Hwan Kim, Eui-Cheol Shin, Hyun Ae Jung, Jong Ho Cho, Jong-Mu Sun, Se-Hoon Lee, Yong Soo Choi, Jin Seok Ahn, Jhingook Kim, Keunchil Park, Young Mog Shim, Hong Kwan Kim, Jae Myoung Noh, Yong Chan Ahn, Hongryull Pyo, Myung-Ju Ahn
Cancer Res Treat. 2024;56(4):1084-1095.   Published online April 30, 2024
DOI: https://doi.org/10.4143/crt.2024.084
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Optimal treatment for stage IIIA/N2 non–small cell lung cancer (NSCLC) is controversial. We aimed to assess the efficacy and safety of adjuvant pembrolizumab for stage IIIA/N2 NSCLC completely resected after neoadjuvant concurrent chemoradiation therapy (CCRT).
Materials and Methods
In this open-label, single-center, single-arm phase 2 trial, patients with stage IIIA/N2 NSCLC received adjuvant pembrolizumab for up to 2 years after complete resection following neoadjuvant CCRT. The primary endpoint was disease-free survival (DFS). Secondary endpoints included overall survival (OS) and safety. As an exploratory biomarker analysis, we evaluated the proliferative response of blood CD39+PD-1+CD8+ T cells using fold changes in the percentage of proliferating Ki-67+ cells from days 1 to 7 of cycle 1 (Ki-67D7/D1).
Results
Between October 2017 and October 2018, 37 patients were enrolled. Twelve (32%) and three (8%) patients harbored EGFR and ALK alterations, respectively. Of 34 patients with programmed cell death ligand 1 assessment, 21 (62%), nine (26%), and four (12%) had a tumor proportion score of < 1%, 1%-50%, and ≥ 50%, respectively. The median follow-up was 71 months. The median DFS was 22.4 months in the overall population, with a 5-year DFS rate of 29%. The OS rate was 86% at 2 years and 76% at 5 years. Patients with tumor recurrence within 6 months had a significantly lower Ki-67D7/D1 among CD39+PD-1+CD8+ T cells than those without (p=0.036). No new safety signals were identified.
Conclusion
Adjuvant pembrolizumab may offer durable disease control in a subset of stage IIIA/N2 NSCLC patients after neoadjuvant CCRT and surgery.
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Comparison of Clinicopathogenomic Features and Treatment Outcomes of EGFR and HER2 Exon 20 Insertion Mutations in Non–Small Cell Lung Cancer: Single-Institution Experience
So Heun Lee, Hyehyun Jeong, Deok Hoon Kim, Se Jin Jang, Sang-We Kim, Shinkyo Yoon, Dae Ho Lee
Cancer Res Treat. 2024;56(3):774-784.   Published online January 30, 2024
DOI: https://doi.org/10.4143/crt.2023.1177
AbstractAbstract PDFPubReaderePub
Purpose
Exon 20 insertion mutations (E20ins) in epidermal growth factor receptor (EGFR) or human epidermal growth factor receptor 2 (HER2) in non–small cell lung cancer (NSCLC) patients has become more important with emergence of novel agents targeting E20ins.
Materials and Methods
Advanced/Metastatic NSCLC patients with E20ins were included. EGFR E20ins was identified by two methods, next-generation sequencing (NGS) or real-time polymerase chain reaction (PCR), while HER2 E20ins was done by NGS only.
Results
Between December 2013 and July 2021, E20ins were identified in 107 patients at Asan Medical Center; 67 EGFR E20ins and 40 HER2 E20ins. Out of 32 patients with EGFR E20ins who had tested both PCR and NGS, 17 were identified only through NGS and the other 15 through both tests, giving a discordance rate of 53.1%. There was no clinically significant difference in clinicopathologic features between EGFR and HER2 E20ins; both were observed more frequently in adenocarcinoma, female and never-smokers. Brain metastases were evident at diagnosis in 31.8% of EGFR E20ins and 27.5% of HER2 E20ins, respectively. Platinum-based doublets demonstrated objective response rates (ORR) of 13.3% with a median progression-free survival (PFS) of 4.2 months for EGFR E20ins and 35.3% with 4.7 months for HER2 E20ins, respectively. In contrast, novel EGFR E20ins-targeted agents exhibited an ORR of 46.2% with a median PFS of 5.4 months, while HER2-targeted agents showed an ORR of 50% with that of 7.0 months.
Conclusion
Identification of EGFR and HER2 E20ins is more important as their targeted therapies improved outcomes. Upfront NGS test as a comprehensive molecular approach is strongly warranted.
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Contribution of Enhanced Locoregional Control to Improved Overall Survival with Consolidative Durvalumab after Concurrent Chemoradiotherapy in Locally Advanced Non–Small Cell Lung Cancer: Insights from Real-World Data
Jeong Yun Jang, Si Yeol Song, Young Seob Shin, Ha Un Kim, Eun Kyung Choi, Sang-We Kim, Jae Cheol Lee, Dae Ho Lee, Chang-Min Choi, Shinkyo Yoon, Su Ssan Kim
Cancer Res Treat. 2024;56(3):785-794.   Published online January 16, 2024
DOI: https://doi.org/10.4143/crt.2023.1014
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
This study aimed to assess the real-world clinical outcomes of consolidative durvalumab in patients with unresectable locally advanced non–small cell lung cancer (LA-NSCLC) and to explore the role of radiotherapy in the era of immunotherapy.
Materials and Methods
This retrospective study assessed 171 patients with unresectable LA-NSCLC who underwent concurrent chemoradiotherapy (CCRT) with or without consolidative durvalumab at Asan Medical Center between May 2018 and May 2021. Primary outcomes included freedom from locoregional failure (FFLRF), distant metastasis-free survival (DMFS), progression-free survival (PFS), and overall survival (OS).
Results
Durvalumab following CCRT demonstrated a prolonged median PFS of 20.9 months (p=0.048) and a 3-year FFLRF rate of 57.3% (p=0.008), compared to 13.7 months and 38.8%, respectively, with CCRT alone. Furthermore, the incidence of in-field recurrence was significantly greater in the CCRT-alone group compared to the durvalumab group (26.8% vs. 12.4%, p=0.027). While median OS was not reached with durvalumab, it was 35.4 months in patients receiving CCRT alone (p=0.010). Patients positive for programmed cell death ligand 1 (PD-L1) expression showed notably better outcomes, including FFLRF, DMFS, PFS, and OS. Adherence to PACIFIC trial eligibility criteria identified 100 patients (58.5%) as ineligible. The use of durvalumab demonstrated better survival regardless of eligibility criteria.
Conclusion
The use of durvalumab consolidation following CCRT significantly enhanced locoregional control and OS in patients with unresectable LA-NSCLC, especially in those with PD-L1–positive tumors, thereby validating the role of durvalumab in standard care.

Citations

Citations to this article as recorded by  
  • Therapeutic effect of induction therapy including nab-paclitaxel followed by surgical resection for the patients with locally advanced non-small-cell lung cancer
    Hidetaka Uramoto, Nozomu Motono, Shun Iwai
    Journal of Cardiothoracic Surgery.2024;[Epub]     CrossRef
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  • 1 Web of Science
  • 1 Crossref
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First-Line Alectinib vs. Brigatinib in Advanced Non–Small Cell Lung Cancer with ALK Rearrangement: Real-World Data
Youngkyung Jeon, Sehhoon Park, Hyun Ae Jung, Jong-Mu Sun, Se-Hoon Lee, Jin Seok Ahn, Myung-Ju Ahn
Cancer Res Treat. 2024;56(1):61-69.   Published online July 14, 2023
DOI: https://doi.org/10.4143/crt.2023.461
AbstractAbstract PDFPubReaderePub
Purpose
Alectinib and brigatinib are second-generation anaplastic lymphoma receptor tyrosine kinases (ALKs) that are widely used as first-line therapy for treating ALK-positive advanced non–small cell lung cancer (NSCLC). Given the lack of a head-to-head comparison of these drugs as first-line therapies, this retrospective observational study aimed to compare the real-world efficacy and safety of alectinib and brigatinib.
Materials and Methods
Patients who received alectinib or brigatinib as the first-line treatment for ALK-positive advanced NSCLC were evaluated for clinical outcomes of objective response rate (ORR), intracranial ORR, time to next treatment (TTNT), progression-free survival (PFS), overall survival (OS), and safety profiles.
Results
Of 208 patients who received either alectinib or brigatinib as a first-line treatment, 176 received alectinib and 32 received brigatinib. At the data cutoff point, the median follow-up duration was 16.5 months (95% confidence interval [CI], 14.7 to 18.3) in the brigatinib group and 27.5 months (95% CI, 24.6 to 30.4) in the alectinib group. The ORR was 92.5% with alectinib and 93.8% for brigatinib. The intracranial ORR rates were 92.7% (38/41) and 100% (10/10), respectively. The rate of PFS at 12 months was comparable between the alectinib group and the brigatinib groups (84.4% vs. 84.1%, p=0.64), and the median TTNT, PFS, and OS were not reached in either group. Treatment-related adverse events were usually mild, and treatment discontinuation due to adverse events was rare (alectinib 4.5% vs. brigatinib 6.25%).
Conclusion
Alectinib and brigatinib had similar clinical benefits when used as the first-line treatment of NSCLC patients with ALK rearrangement in the real world.

Citations

Citations to this article as recorded by  
  • Bridging the Gap between Trial Adverse Events and Real-World Data
    Sang Hyuk Kim, Hyun Lee, Dong Won Park
    Cancer Research and Treatment.2024; 56(3): 972.     CrossRef
  • Real‐world evidence of brigatinib as second‐line treatment after crizotinib for ALK+ non‐small cell lung cancer using South Korean claims data (K‐AREAL)
    Jeong Eun Lee, Jin Hyun Nam, Sun Hong Kwon, Bo Kyung Kim, Seung Min Ha
    Cancer Medicine.2024;[Epub]     CrossRef
  • Cost‐Effectiveness Analysis of Adjuvant Alectinib versus Platinum‐Based Chemotherapy in Resected ALK‐Positive Non‐Small‐Cell Lung Cancer in the Chinese Health Care System
    Qiran Wei, Yifang Liang, Jiahui Mao, Xin Guan
    Cancer Medicine.2024;[Epub]     CrossRef
  • 5,083 View
  • 585 Download
  • 4 Web of Science
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Lazertinib versus Gefitinib as First-Line Treatment for EGFR-mutated Locally Advanced or Metastatic NSCLC: LASER301 Korean Subset
Ki Hyeong Lee, Byoung Chul Cho, Myung-Ju Ahn, Yun-Gyoo Lee, Youngjoo Lee, Jong-Seok Lee, Joo-Hang Kim, Young Joo Min, Gyeong-Won Lee, Sung Sook Lee, Kyung-Hee Lee, Yoon Ho Ko, Byoung Yong Shim, Sang-We Kim, Sang Won Shin, Jin-Hyuk Choi, Dong-Wan Kim, Eun Kyung Cho, Keon Uk Park, Jin-Soo Kim, Sang Hoon Chun, Jangyoung Wang, SeokYoung Choi, Jin Hyoung Kang
Cancer Res Treat. 2024;56(1):48-60.   Published online June 27, 2023
DOI: https://doi.org/10.4143/crt.2023.453
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
This subgroup analysis of the Korean subset of patients in the phase 3 LASER301 trial evaluated the efficacy and safety of lazertinib versus gefitinib as first-line therapy for epidermal growth factor receptor mutated (EGFRm) non–small cell lung cancer (NSCLC).
Materials and Methods
Patients with locally advanced or metastatic EGFRm NSCLC were randomized 1:1 to lazertinib (240 mg/day) or gefitinib (250 mg/day). The primary endpoint was investigator-assessed progression-free survival (PFS).
Results
In total, 172 Korean patients were enrolled (lazertinib, n=87; gefitinib, n=85). Baseline characteristics were balanced between the treatment groups. One-third of patients had brain metastases (BM) at baseline. Median PFS was 20.8 months (95% confidence interval [CI], 16.7 to 26.1) for lazertinib and 9.6 months (95% CI, 8.2 to 12.3) for gefitinib (hazard ratio [HR], 0.41; 95% CI, 0.28 to 0.60). This was supported by PFS analysis based on blinded independent central review. Significant PFS benefit with lazertinib was consistently observed across predefined subgroups, including patients with BM (HR, 0.28; 95% CI, 0.15 to 0.53) and those with L858R mutations (HR, 0.36; 95% CI, 0.20 to 0.63). Lazertinib safety data were consistent with its previously reported safety profile. Common adverse events (AEs) in both groups included rash, pruritus, and diarrhoea. Numerically fewer severe AEs and severe treatment–related AEs occurred with lazertinib than gefitinib.
Conclusion
Consistent with results for the overall LASER301 population, this analysis showed significant PFS benefit with lazertinib versus gefitinib with comparable safety in Korean patients with untreated EGFRm NSCLC, supporting lazertinib as a new potential treatment option for this patient population.

Citations

Citations to this article as recorded by  
  • First-line treatment of EGFR-mutated non-small cell lung cancer with brain metastases: a systematic review and meta-analysis
    Jietao Ma, Xiaoxue Pang, Shuling Zhang, Letian Huang, Li Sun, Chengbo Han
    Scientific Reports.2024;[Epub]     CrossRef
  • 6,011 View
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  • 1 Web of Science
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Tumor Microenvironment Modulation by Neoadjuvant Erlotinib Therapy and Its Clinical Impact on Operable EGFR-Mutant Non–Small Cell Lung Cancer
Beung-Chul Ahn, Charny Park, Moon Soo Kim, Jong Mog Lee, Jin Ho Choi, Hyae Young Kim, Geon Kook Lee, Namhee Yu, Youngjoo Lee, Ji-Youn Han
Cancer Res Treat. 2024;56(1):70-80.   Published online June 21, 2023
DOI: https://doi.org/10.4143/crt.2023.482
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors have greatly improved survival in EGFR-mutant (EGFRm) non–small cell lung cancer (NSCLC); however, their effects on the tumor microenvironment (TME) are unknown. We assessed the changes induced by neoadjuvant erlotinib therapy (NE) in the TME of operable EGFRm NSCLC.
Materials and Methods
This was a single-arm phase II trial for neoadjuvant/adjuvant erlotinib therapy in patients with stage II/IIIA EGFRm NSCLC (EGFR exon 19 deletion or L858R mutations). Patients received up to 2 cycles of NE (150 mg/day) for 4 weeks, followed by surgery and adjuvant erlotinib or vinorelbine plus cisplatin therapy depending on observed NE response. TME changes were assessed based on gene expression analysis and mutation profiling.
Results
A total of 26 patients were enrolled; the median age was 61, 69% were female, 88% were stage IIIA, and 62% had L858R mutation. Among 25 patients who received NE, the objective response rate was 72% (95% confidence interval [CI], 52.4 to 85.7). The median disease-free and overall survival (OS) were 17.9 (95% CI, 10.5 to 25.4) and 84.7 months (95% CI, 49.7 to 119.8), respectively. Gene set enrichment analysis in resected tissues revealed upregulation of interleukin, complement, cytokine, transforming growth factor β, and hedgehog pathways. Patients with upregulated pathogen defense, interleukins, and T-cell function pathways at baseline exhibited partial response to NE and longer OS. Patients with upregulated cell cycle pathways at baseline exhibited stable/progressive disease after NE and shorter OS.
Conclusion
NE modulated the TME in EGFRm NSCLC. Upregulation of immune-related pathways was associated with better outcomes.

Citations

Citations to this article as recorded by  
  • Dual Inhibition of SYK and EGFR Overcomes Chemoresistance by Inhibiting CDC6 and Blocking DNA Replication
    Jayaprakash Mandal, Tiffany Nicole Jones, Juliane Marie Liberto, Stephanie Gaillard, Tian-Li Wang, Ie-Ming Shih
    Cancer Research.2024; 84(22): 3881.     CrossRef
  • 3,626 View
  • 261 Download
  • 1 Web of Science
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Clinical Validation of the Unparalleled Sensitivity of the Novel Allele-Discriminating Priming System Technology–Based EGFR Mutation Assay in Patients with Operable Non–Small Cell Lung Cancer
Il-Hyun Park, Dae-Soon Son, Yoon-La Choi, Ji-Hyeon Choi, Ji-Eun Park, Yeong Jeong Jeon, Minseob Cho, Hong Kwan Kim, Yong Soo Choi, Young Mog Shim, Jung Hee Kang, Suzy Park, Jinseon Lee, Sung-Hyun Kim, Byung-Chul Lee, Jhingook Kim
Cancer Res Treat. 2024;56(1):81-91.   Published online June 20, 2023
DOI: https://doi.org/10.4143/crt.2023.408
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Recently, we developed allele-discriminating priming system (ADPS) technology. This method increases the sensitivity of conventional quantitative polymerase chain reaction up to 100 folds, with limit of detection, 0.01%, with reinforced specificity. This prospective study aimed to develop and validate the accuracy of ADPS epidermal growth factor receptor (EGFR) Mutation Test Kit using clinical specimens.
Materials and Methods
In total 189 formalin-fixed paraffin-embedded tumor tissues resected from patients with non–small cell lung cancer were used to perform a comparative evaluation of the ADPS EGFR Mutation Test Kit versus the cobas EGFR Mutation Test v2, which is the current gold standard. When the two methods had inconsistent results, next-generation sequencing–based CancerSCAN was utilized as a referee.
Results
The overall agreement of the two methods was 97.4% (93.9%-99.1%); the positive percent agreement, 95.0% (88.7%-98.4%); and the negative percent agreement, 100.0% (95.9%-100.0%). EGFR mutations were detected at a frequency of 50.3% using the ADPS EGFR Mutation Test Kit and 52.9% using the cobas EGFR Mutation Test v2. There were 10 discrepant mutation calls between the two methods. CancerSCAN reproduced eight ADPS results. In two cases, mutant allele fraction was ultra-low at 0.02% and 0.06%, which are significantly below the limit of detection of the cobas assay and CancerSCAN. Based on the EGFR genotyping by ADPS, the treatment options could be switched in five patients.
Conclusion
The highly sensitive and specific ADPS EGFR Mutation Test Kit would be useful in detecting the patients who have lung cancer with EGFR mutation, and can benefit from the EGFR targeted therapy.

Citations

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  • Highly Sensitive 3D‐Nanoplasmonic‐Based Epidermal Growth Factor Receptor Mutation Multiplex Assay Chip for Liquid Biopsy
    Ji Young Lee, Byeong‐Ho Jeong, Ho Sang Jung, Taejoon Kang, Yeonkyung Park, Jin Kyung Rho, Sung‐Gyu Park, Min‐Young Lee
    Small Science.2024;[Epub]     CrossRef
  • The Advantage of Targeted Next-Generation Sequencing over qPCR in Testing for Druggable EGFR Variants in Non-Small-Cell Lung Cancer
    Adam Szpechcinski, Joanna Moes-Sosnowska, Paulina Skronska, Urszula Lechowicz, Magdalena Pelc, Malgorzata Szolkowska, Piotr Rudzinski, Emil Wojda, Krystyna Maszkowska-Kopij, Renata Langfort, Tadeusz Orlowski, Pawel Sliwinski, Mateusz Polaczek, Joanna Chor
    International Journal of Molecular Sciences.2024; 25(14): 7908.     CrossRef
  • 3,955 View
  • 278 Download
  • 2 Web of Science
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Final Report on Real-World Effectiveness of Sequential Afatinib and Osimertinib in EGFR-Positive Advanced Non–Small Cell Lung Cancer: Updated Analysis of the RESET Study
Taeyun Kim, Tae Won Jang, Chang Min Choi, Mi-Hyun Kim, Sung Yong Lee, Yoon Soo Chang, Kye Young Lee, Seung Joon Kim, Sei Hoon Yang, Jeong Seon Ryu, Jeong Eun Lee, Shin Yup Lee, Chan Kwon Park, Sang Hoon Lee, Seung Hun Jang, Seong Hoon Yoon, Hyung-Joo Oh
Cancer Res Treat. 2023;55(4):1152-1170.   Published online May 19, 2023
DOI: https://doi.org/10.4143/crt.2023.493
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
This study aimed to report the final analysis of time-on-treatment (TOT) and overall survival (OS) in patients with advanced-stage epidermal growth factor receptor (EGFR)+ non–small cell lung cancer (NSCLC) who received sequential afatinib and osimertinib and to compare the outcomes with other second-line regimens (comparator group).
Materials and Methods
In this updated report, the existing medical records were reviewed and rechecked. TOT and OS were updated and analyzed according to clinical features using the Kaplan-Meier method and log-rank test. TOT and OS were compared with those of the comparator group, in which most patients received pemetrexed-based treatments. A multivariable Cox proportional hazard model was used to evaluate features that could affect survival outcomes.
Results
The median observation time was 31.0 months. The follow-up period was extended to 20 months. A total of 401 patients who received first-line afatinib were analyzed (166 with T790M+ and second-line osimertinib, and 235 with unproven T790M and other second-line agents). Median TOTs on afatinib and osimertinib were 15.0 months (95% confidence interval [CI], 14.0 to 16.1) and 11.9 months (95% CI, 8.9 to 14.6), respectively. The median OS in the osimertinib group was 54.3 months (95% CI, 46.7 to 61.9), much longer than that in the comparator group. In patients who received osimertinib, the OS was longest with Del19+ (median, 59.1; 95% CI, 48.7 to 69.5).
Conclusion
This is one of the largest real-world studies reporting the encouraging activity of sequential afatinib and osimertinib in Asian patients with EGFR+ NSCLC who acquired the T790M mutation, particularly Del19+.

Citations

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  • KEAP1-NRF2 Pathway as a Novel Therapeutic Target for EGFR-Mutant Non-small Cell Lung Cancer
    Jae-Sun Choi, Hye-Min Kang, Kiyong Na, Jiwon Kim, Tae-Woo Kim, Junyang Jung, Heejin Lim, Hyewon Seo, Seung Hyeun Lee
    Tuberculosis and Respiratory Diseases.2025; 88(1): 138.     CrossRef
  • A real-world cohort study of first-line afatinib in patients with EGFR-mutant advanced non-small cell lung cancer in Vietnam
    Cam Phuong Pham, Thi Thai Hoa Nguyen, Anh Tu Do, Tuan Khoi Nguyen, Thi Anh Thu Hoang, Tuan Anh Le, Dinh Thy Hao Vuong, Dac Nhan Tam Nguyen, Van Khiem Dang, Thi Oanh Nguyen, Van Luan Pham, Minh Hai Nguyen, Thi Huyen Trang Vo, Hung Kien Do, Ha Thanh Vu, Thi
    BMC Cancer.2024;[Epub]     CrossRef
  • Real‐world evidence of brigatinib as second‐line treatment after crizotinib for ALK+ non‐small cell lung cancer using South Korean claims data (K‐AREAL)
    Jeong Eun Lee, Jin Hyun Nam, Sun Hong Kwon, Bo Kyung Kim, Seung Min Ha
    Cancer Medicine.2024;[Epub]     CrossRef
  • Serum Concentrations of IGF-1R, ERK2, and EGFR and Their Clinical Significance in Patients with Neuroendocrine Tumors
    Roksana Duszkiewicz, Janusz Strzelczyk, Elżbieta Chełmecka, Joanna Katarzyna Strzelczyk
    Applied Sciences.2024; 14(16): 6998.     CrossRef
  • Optimal first-line treatment for EGFR-mutated NSCLC: a comparative analysis of osimertinib and second-generation EGFR-TKIs
    Hsu-Yuan Chen, Chia-Hung Chen, Wei-Chih Liao, Yu-Chao Lin, Hung-Jen Chen, Te-Chun Hsia, Wen-Chien Cheng, Chih-Yen Tu
    BMC Pulmonary Medicine.2024;[Epub]     CrossRef
  • Osimertinib as Second- and ≥Third-Line Treatment in Advanced and Recurrence EGFR-Mutant NSCLC Patients Harboring Acquired T790M Mutation
    Mu-Han Peng, Yen-Hsiang Huang, Kuo-Hsuan Hsu, Jeng-Sen Tseng, Po-Hsin Lee, Kun-Chieh Chen, Gee-Chen Chang, Tsung-Ying Yang
    Cancers.2024; 16(24): 4174.     CrossRef
  • Effectiveness of first-line anticancer treatment may predict treatment response in further lines in stage III/IV patients with non-small cell lung cancer
    Monika Bratova, Jana Skrickova, Magda Matusikova, Karolina Hrabcova, Libor Havel, Leona Koubkova, Michal Hrnciarik, Jana Krejci, Ondrej Fischer, Martin Svaton, Kristian Brat
    Journal of Cancer Research and Clinical Oncology.2023; 149(19): 17123.     CrossRef
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EGFR Mutation–Positive Unresectable Stage III Non-Squamous Lung Cancer Is Associated with a High Incidence of Brain Metastasis
Hongsik Kim, Sehhoon Park, Hyun Ae Jung, Jong-Mu Sun, Se-Hoon Lee, Jin Seok Ahn, Myung-Ju Ahn
Cancer Res Treat. 2023;55(2):498-505.   Published online October 4, 2022
DOI: https://doi.org/10.4143/crt.2022.388
AbstractAbstract PDFPubReaderePub
Purpose
The impact of epidermal growth factor receptor (EGFR) mutation in locally advanced non–small cell lung cancer (NSCLC) remains controversial. This study was conducted to investigate the clinical outcomes and recurrence patterns after definitive chemoradiotherapy (CRT) in patients with unresectable stage III non-squamous-cell lung cancer according to EGFR mutation status.
Materials and Methods
We retrospectively reviewed 604 patients with pathologically confirmed stage III NSCLC who were treated with definitive CRT and were examined for EGFR mutation at Samsung Medical Center, Korea, from January 2013 to December 2018. Among them, we identified 236 patients with stage III non-squamous-cell lung cancer who were treated with definitive CRT and were examined for EGFR mutation status. We analyzed the frequency of EGFR mutation, progression-free survival (PFS), overall survival (OS), objective response rate (ORR), and recurrence pattern.
Results
Among 236 patients, EGFR mutation was detected in 71 patients (30.1%) and the median follow-up duration was 41.7 months. There were no significant differences in PFS (9.9 vs. 10.9 months, p=0.236), and ORR to CRT (93.0% vs. 90.3%, p=0.623) according to EGFR mutation status. However, the EGFR mutant group showed significantly higher recurrence (88.7% vs. 75.2%, p=0.022), distant metastasis (76.1% vs. 61.2%, p=0.036) rates, especially brain (38.0% vs. 12.7%, p < 0.001), and better median OS (59.2 vs. 41.3 months, p=0.037) compared with patients without EGFR mutation.
Conclusion
Patients with EGFR mutation–positive unresectable stage III non-squamous lung cancer exhibited higher recurrence and distant metastasis rates, especially brain metastasis.

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  • Prognostic Factors in Postoperative Brain Metastases Derive From Non-small Cell Lung Cancer: A Retrospective Analysis
    Haibin Chen, Liang Sun, Zhi Yang, Yuanyuan Qu, Nanyang Tong, Caixing Sun, Liang Xia
    Clinical Medicine Insights: Oncology.2024;[Epub]     CrossRef
  • Brain metastasis screening in the molecular age
    Joanna K Tabor, Amanda Onoichenco, Vinayak Narayan, A Gabriella Wernicke, Randy S D’Amico, Morana Vojnic
    Neuro-Oncology Advances.2023;[Epub]     CrossRef
  • 4,549 View
  • 229 Download
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Efficacy and Safety of Ceritinib 450 mg/day with Food and 750 mg/day in Fasted State in Treatment-Naïve Patients with ALK+ Non–Small Cell Lung Cancer: Results from the ASCEND-8 Asian Subgroup Analysis
Byoung Chul Cho, Dong-Wan Kim, Ullas Batra, Keunchil Park, Sang-We Kim, Cheng-Ta Yang, Pei-Jye Voon, Virote Sriuranpong, K. Govind Babu, Khalid Amin, Yingbo Wang, Paramita Sen, Khemaies Slimane, Sarayut Geater
Cancer Res Treat. 2023;55(1):83-93.   Published online March 25, 2022
DOI: https://doi.org/10.4143/crt.2021.1571
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Previous report from the ASCEND-8 trial showed consistent efficacy with less gastrointestinal (GI) toxicity in patients with anaplastic lymphoma kinase-rearranged (ALK+) advanced/metastatic non–small cell lung cancer (NSCLC) treated with ceritinib 450-mg with food compared with 750-mg fasted. In this subgroup analysis, we report outcomes in Asian patients of the ASCEND-8 trial.
Materials and Methods
Key efficacy endpoints were blinded independent review committee (BIRC)–assessed overall response rate (ORR) and duration of response (DOR) evaluated per Response Evaluation Criteria in Solid Tumors v1.1. Other efficacy endpoints were investigator-assessed ORR and DOR; BIRC- and investigator-assessed progression-free survival (PFS) and disease control rate; overall survival (OS). Safety was evaluated by frequency and severity of adverse events.
Results
At final data cutoff (6 March 2020), 198 treatment-naïve patients were included in efficacy analysis, of which 74 (37%) comprised the Asian subset; 450-mg fed (n=29), 600-mg fed (n=19), and 750-mg fasted (n=26). Baseline characteristics were mostly comparable across study arms. At baseline, more patients in 450-mg fed arm (44.8%) had brain metastases than in 750-mg fasted arm (26.9%). Per BIRC, patients in the 450-mg fed arm had a numerically higher ORR, 24-month DOR rate and 24-month PFS rate than the 750-mg fasted arm. The 36-month OS rate was 93.1% in 450-mg fed arm and 70.9% in 750-mg fasted arm. Any-grade GI toxicity occurred in 82.8% and 96.2% of patients in the 450-mg fed and 750-mg fasted arms, respectively.
Conclusion
Asian patients with ALK+ advanced/metastatic NSCLC treated with ceritinib 450-mg fed showed numerically higher efficacy and lower GI toxicity than 750-mg fasted patients.

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  • Economic Evaluation of Targeted Therapies for Anaplastic Lymphoma Kinase– and ROS1 Fusion–Positive Non–Small Cell Lung Cancer in India
    Dharna Gupta, Nidhi Gupta, Navneet Singh, Shankar Prinja
    JCO Global Oncology.2024;[Epub]     CrossRef
  • Uniqueness of lung cancer in Southeast Asia
    Vanita Noronha, Atul Budukh, Pankaj Chaturvedi, Srikanth Anne, Anshu Punjabi, Maheema Bhaskar, Tarini P. Sahoo, Nandini Menon, Minit Shah, Ullas Batra, Shrinidhi Nathany, Rajiv Kumar, Omshree Shetty, Trupti Pai Ghodke, Abhishek Mahajan, Nivedita Chakrabar
    The Lancet Regional Health - Southeast Asia.2024; 27: 100430.     CrossRef
  • Small intestinal metastasis in a lung adenocarcinoma patient with concurrent EML4-ALK V3 and TP53 mutations after distinct responses to tyrosine kinase inhibitors: A case report
    Lingling Zhu, Yingchun Zhao, Yongqian Zhang, Zhai Liu, Wenhua Ma, Ying Guo, Qian Wang, Yan Guo, Hengxu Lv, Min Zhao
    Heliyon.2024; 10(19): e38839.     CrossRef
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Selection Strategies and Practical Application of BRAF V600E-Mutated Non–Small Cell Lung Carcinoma
Inwoo Hwang, Yoon-La Choi, Hyunwoo Lee, Soohyun Hwang, Boram Lee, Hobin Yang, Chaithanya Chelakkot, Joungho Han
Cancer Res Treat. 2022;54(3):782-792.   Published online November 23, 2021
DOI: https://doi.org/10.4143/crt.2021.843
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
The incidence of BRAF V600E mutation in non-small cell lung carcinoma (NSCLC) is lower than 2%, which poses difficulties in finding legitimate patients for targeted therapy. We investigated the predictive factors pertaining to BRAF V600E and the effectiveness of the VE1 antibody as a screening method for patient selection.
Materials and Methods
The study was designed into two steps. In a first group, BRAF-mutated NSCLCs were identified from sequencing data to determine the features of BRAF V600E mutation. The results of the first group helped the collection of adenocarcinomas with a papillary or micropapillary pattern but without EGFR or ALK alterations as a second group so that the frequency of BRAF V600E mutation could be calculated. The sensitivity and specificity of the VE1 were compared with BRAF V600E status.
Results
Among 39 BRAF-mutated NSCLCs in the first group, 20 (51%) were V600E. BRAF V600E mutation was more common in female patients and showed no significant correlation with smoking status. Nineteen cases were adenocarcinomas without EGFR and ALK alterations. The most common patterns of invasion were papillary and micropapillary along with central fibrosis. The sensitivity and specificity of the VE1 were 90.0% and 92.3%, respectively. In the second group, 6.7% of cases were VE1-positive, indicating that the prevalence was significantly higher than that reported in previous studies (0.3-1.8%).
Conclusion
BRAF V600E-mutated NSCLCs could be enriched with the application of clinicopathologic parameters, which are not perfect. Therefore, additional VE1 immunohistochemistry may be useful as a screening method.

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  • The rapidly changing field of predictive biomarkers of non-small cell lung cancer
    László József Tóth, Attila Mokánszki, Gábor Méhes
    Pathology and Oncology Research.2024;[Epub]     CrossRef
  • BRAF V600E Mutation of Non-Small Cell Lung Cancer in Korean Patients
    Hyo Yeong Ahn, Chang Hun Lee, Min Ki Lee, Jung Seop Eom, Yeon Joo Jeong, Yeong Dae Kim, Jeong Su Cho, Jonggeun Lee, So Jeong Lee, Dong Hoon Shin, Ahrong Kim
    Medicina.2023; 59(6): 1085.     CrossRef
  • The Impact of Liquid Biopsies Positive for EGFR Mutations on Overall Survival in Non-Small Cell Lung Cancer Patients
    Jonnathan Roldan Ruiz, Marta Fuentes Gago, Luis Chinchilla Tabora, Idalia Gonzalez Morais, José Sayagués, Mar Abad Hernández, Maria Cordovilla Pérez, Maria Ludeña de la Cruz, Edel del Barco Morillo, Marta Rodriguez Gonzalez
    Diagnostics.2023; 13(14): 2347.     CrossRef
  • Usefulness of BRAF VE1 immunohistochemistry in non–small cell lung cancers: a multi-institutional study by 15 pathologists in Korea
    Sunhee Chang, Yoon-La Choi, Hyo Sup Shim, Geon Kook Lee, Seung Yeon Ha
    Journal of Pathology and Translational Medicine.2022; 56(6): 334.     CrossRef
  • 6,426 View
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The Impact of EGFR Tyrosine Kinase Inhibitor on the Natural Course of Concurrent Subsolid Nodules in Patients with Non–Small Cell Lung Cancer
Noeul Kang, Ki Hwan Kim, Byeong-Ho Jeong, Kyungjong Lee, Hojoong Kim, O Jung Kwon, Myung-Ju Ahn, Jeonghee Cho, Ho Yun Lee, Sang-Won Um
Cancer Res Treat. 2022;54(3):817-826.   Published online November 9, 2021
DOI: https://doi.org/10.4143/crt.2021.822
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
The role of epidermal growth factor receptor–tyrosine kinase inhibitors (EGFR-TKIs) in the management of persistent subsolid nodules (SSNs) is unclear. This study aimed to investigate the impact of EGFR-TKIs on concurrent SSNs in patients with stage IV non–small cell lung cancer (NSCLC).
Materials and Methods
Patients who received an EGFR-TKI for at least 1 month for stage IV NSCLC and had concurrent SSN(s) that had existed for at least 3 months on chest computed tomography were included in this retrospective study. Size change of each nodule before and after EGFR-TKI therapies were evaluated using a cutoff value of 2 mm; increase (≥ 2 mm), decrease (≤ –2 mm), and no change (–2 mm < size change < +2 mm).
Results
A total of 77 SSNs, 51 pure ground-glass (66.2%) and 26 part-solid nodules (33.8%), were identified in 59 patients who received gefitinib (n=45) and erlotinib (n=14). Among 58 EGFR mutation analysis performed for primary lung cancer, 45 (77.6%) were EGFR mutant. The proportions of decrease group were 19.5% (15/77) on per-nodule basis and 25.4% (15/59) on per-patient basis. Four SSNs (5.2%) disappeared completely. On per-patient based multivariable analysis, EGFR exon 19 deletion positivity for primary lung cancer was associated with a decrease after initial EGFR-TKI therapy (adjusted odds ratio, 4.29; 95% confidence interval, 1.21 to 15.29; p=0.025).
Conclusion
Approximately 20% of the concurrent SSNs decreased after the initial EGFR-TKI therapy. EGFR exon 19 deletion positivity for primary lung cancer was significantly associated with the size change of concurrent SSNs.

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  • Genetic Polymorphisms of ACE1 Rs4646994 Associated with Lung Cancer in Patients with Pulmonary Nodules: A Case–Control Study
    Rong Qiao, Siyao Sang, Jiajun Teng, Hua Zhong, Hui Li, Baohui Han
    Biomedicines.2023; 11(6): 1549.     CrossRef
  • Deep learning analysis to predict EGFR mutation status in lung adenocarcinoma manifesting as pure ground-glass opacity nodules on CT
    Hyun Jung Yoon, Jieun Choi, Eunjin Kim, Sang-Won Um, Noeul Kang, Wook Kim, Geena Kim, Hyunjin Park, Ho Yun Lee
    Frontiers in Oncology.2022;[Epub]     CrossRef
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Usefulness of Pulmonary Rehabilitation in Non-Small Cell Lung Cancer Patients Based on Pulmonary Function Tests and Muscle Analysis Using Computed Tomography Images
Juwhan Choi, Zepa Yang, Jinhwan Lee, Jun Hee Lee, Hyun Koo Kim, Hwan Seok Yong, Sung Yong Lee
Cancer Res Treat. 2022;54(3):793-802.   Published online October 20, 2021
DOI: https://doi.org/10.4143/crt.2021.769
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
The usefulness of rehabilitation in patients with reduced lung function before lung surgery remains unclear, and there is no adequate method for evaluating the effect of rehabilitation. We aimed to evaluate the usefulness of rehabilitation in patients with non-small cell lung cancer (NSCLC) undergoing lung cancer surgery.
Materials and Methods
We retrospectively analyzed the medical records of NSCLC patients at Korea University Guro Hospital between 2018 and 2020. Patients were divided into two groups depending on whether they underwent rehabilitation. Pulmonary function test (PFT) data and muscle determined using chest computed tomography (CT) images were analyzed. Because the baseline characteristics were different between the two groups, propensity score matching was performed.
Results
Of 325 patients, 75 (23.1%) and 250 (76.9%) were included in the rehabilitation and non-rehabilitation (control) groups, respectively. The rehabilitation group had a worse general condition at baseline. After propensity score matching, 45 patients remained in each group. Pulmonary function (forced expiratory volume in 1 second, %) (p=0.001) and the Hounsfield unit of erector spinae muscle (p=0.001) were better preserved in the rehabilitation group. Muscle loss of 3.4% and 0.6% was observed in the control and rehabilitation groups, respectively (p=0.003). In addition, the incidence of embolic events was lower in the rehabilitation group (p=0.044).
Conclusion
Pulmonary rehabilitation is useful in patients with NSCLC undergoing lung surgery. Pulmonary rehabilitation preserves lung function, muscle and reduces embolic events after surgery. Pulmonary rehabilitation is recommended for patients with NSCLC undergoing surgery.

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  • Comprehensive pulmonary rehabilitation for a 90-year-old patient with intertrochanteric fracture complicated by chronic obstructive pulmonary disease: a case report
    Hui Teng, Jun Tian, Qing Shu
    Physiotherapy Theory and Practice.2024; 40(11): 2712.     CrossRef
  • Impact of pulmonary rehabilitation on exercise capacity, health-related quality of life, and cardiopulmonary function in lung surgery patients: a retrospective propensity score-matched analysis
    Chunlai Niu, Huan Lin, Zinan Zhang, Qing Wang, Yingjun Wei
    Frontiers in Medicine.2024;[Epub]     CrossRef
  • Changes in the Glittre-ADL test in patients with non-small cell lung cancer: Pre- and postoperative analysis after home-based rehabilitation: A preliminary study
    Isabelle da Nobrega Ferreira, Joao Pedro Lima de Almeida, Mel Portugal Cabral Santos, Beatriz Martins Gomes Cruz, Thiago Thomaz Mafort, Agnaldo José Lopes
    Heliyon.2024; 10(23): e40646.     CrossRef
  • Safety and Efficacy of Bojungikki-Tang in Advanced NSCLC Patients Receiving Treatment with Immune Checkpoint Inhibitors: Protocol for a Multicenter, Double-Blind, Randomized, Placebo-Controlled Pilot Trial
    Mi Mi Ko, Mi-Kyung Jeong, Chang Min Choi, Seung Hyeun Lee, Jaemoo Chun, Jin-Mu Yi, Ho Jang, Sung Yong Lee
    International Journal of Environmental Research and Public Health.2023; 20(5): 4507.     CrossRef
  • Association of Preoperative Rehabilitation With Postoperative Length of Hospital Stay for Elderly Lung Cancer Patients
    Kohei FUNATSU, Ryutaro MATSUGAKI, Hanaka IMAMURA, Masaru TAKENAKA, Fumihiro TANAKA, Kiyohide FUSHIMI, Shinya MATSUDA, Satoru SAEKI
    Journal of UOEH.2023; 45(3): 155.     CrossRef
  • Research Status and Progress of Lung Rehabilitation after Lung Cancer Operation
    莉 袁
    Advances in Clinical Medicine.2023; 13(09): 14955.     CrossRef
  • Rapid Recovery of Postoperative Pulmonary Function in Patients With Lung Cancer and Influencing Factors
    Yang Fuzhi, Tang Dongfang, Fu Wentao, Wang Jing, Wu Yingting, Mo Nianping, Gao Wen, Shen Xiaoyong
    Frontiers in Oncology.2022;[Epub]     CrossRef
  • Bilan fonctionnel préopératoire du cancer bronchique
    J. Frija-Masson
    Revue des Maladies Respiratoires Actualités.2022; 14(2): 2S75.     CrossRef
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Histone Deacetylase as a Valuable Predictive Biomarker and Therapeutic Target in Immunotherapy for Non-Small Cell Lung Cancer
Hyun-Seock Shin, Juwhan Choi, Jinhwan Lee, Sung Yong Lee
Cancer Res Treat. 2022;54(2):458-468.   Published online September 10, 2021
DOI: https://doi.org/10.4143/crt.2021.425
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Histone deacetylase inhibitors (HDACis) are epigenetic regulators and used clinically for hematopoietic malignancies. Recently, HDACis have received attention as a factor that modulates the immune system. In this study, the role of histone deacetylase (HDAC) expression as a predictive marker in lung cancer patients who were treated with immune checkpoint inhibitors (ICIs) and the role of HDACi and ICI combination treatment in the mouse tumor model were analyzed.
Materials and Methods
The overall response rate (ORR) and progression-free survival (PFS) were analyzed by the expression of HDAC. In vitro assay, the mRNA and protein expression levels of cytokines and programmed death-ligand 1 (PD-L1) were analyzed after HDACi treatment. In vivo assay, TC-1 tumor-bearing mice were treated with HDACi and mouse programmed cell death 1 (PD-1) inhibitor.
Results
The HDAC6 low expression group showed high ORR and prolonged PFS. When the selective HDAC6 inhibitor was administered to the A549 cell line, the levels of interleukin-1β and interleukin-6 decreased and the expression of PD-L1 was reduced. Mice that received both the mouse PD-1 inhibitor and pan-HDACi had a smaller tumor size than that of the mice from the control group. Moreover, mice treated with the mouse PD-1 inhibitor and pan-HDACi generated greater numbers of E7-specific CD8+ T cells.
Conclusion
HDAC6 expression can predict the prognosis of non–small cell lung cancerpatients who were treated with ICIs. Furthermore, co-treatment with HDACi and PD-1 inhibitor was shown to decrease the tumor growth rate and create a favorable tumor microenvironment for cytotoxic T lymphocytes in the TC-1 mouse model.

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  • Immunomodulatory properties of HDAC6 inhibitors in cancer diseases: New chances for sophisticated drug design and treatment optimization
    Bernhard Biersack, Bianca Nitzsche, Michael Höpfner
    Seminars in Cell & Developmental Biology.2024; 154: 286.     CrossRef
  • Regulation of PD-L1 Expression by YY1 in Cancer: Therapeutic Efficacy of Targeting YY1
    Ana Dillen, Indy Bui, Megan Jung, Stephanie Agioti, Apostolos Zaravinos, Benjamin Bonavida
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  • Reducing PD-L1 Expression by Degraders and Downregulators as a Novel Strategy to Target the PD-1/PD-L1 Pathway
    Zhijie Wang, Lin Yuan, Xiaotong Liao, Xia Guo, Jianjun Chen
    Journal of Medicinal Chemistry.2024; 67(8): 6027.     CrossRef
  • Dual molecule targeting HDAC6 leads to intratumoral CD4+ cytotoxic lymphocytes recruitment through MHC-II upregulation on lung cancer cells
    Sarah Ducellier, Mélanie Demeules, Boris Letribot, Massimiliano Gaetani, Chloé Michaudel, Harry Sokol, Abdallah Hamze, Mouad Alami, Mégane Nascimento, Sébastien Apcher
    Journal for ImmunoTherapy of Cancer.2024; 12(4): e007588.     CrossRef
  • Selective HDAC6 Inhibition Has the Potential for Anti-Cancer Effect in Renal Cell Carcinoma
    Tsutomu Anraku, Masaki Murata, Hiroo Kuroki, Akira Kazama, Yuko Shirono, Masayuki Tasaki, Vladimir Bilim, Yoshihiko Tomita
    Journal of Personalized Medicine.2024; 14(7): 704.     CrossRef
  • Histone deacetylase inhibitors for leukemia treatment: current status and future directions
    Mohammad-Salar Hosseini, Zohreh Sanaat, Mohammad Amin Akbarzadeh, Yosra Vaez-Gharamaleki, Mahsa Akbarzadeh
    European Journal of Medical Research.2024;[Epub]     CrossRef
  • Epigenetic Modification of PD-1/PD-L1-Mediated Cancer Immunotherapy against Melanoma
    Hikaru Nanamori, Yu Sawada
    International Journal of Molecular Sciences.2022; 23(3): 1119.     CrossRef
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    Shuo Yang, Yang Huang, Qi Zhao
    Frontiers in Immunology.2022;[Epub]     CrossRef
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    Hyein Jo, Kyeonghee Shim, Dooil Jeoung
    International Journal of Molecular Sciences.2022; 23(17): 9592.     CrossRef
  • Epigenetic modifications: Critical participants of the PD‑L1 regulatory mechanism in solid tumors (Review)
    Xiaoran Ma, Jibiao Wu, Bin Wang, Cun Liu, Lijuan Liu, Changgang Sun
    International Journal of Oncology.2022;[Epub]     CrossRef
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Long-term Survival in Non–Small Cell Lung Cancer Patients with Metachronous Brain-Only Oligorecurrence Who Underwent Definitive Treatment
Hongsik Kim, Sehhoon Park, Hyun Ae Jung, Jong-Mu Sun, Se-Hoon Lee, Jin Seok Ahn, Keunchil Park, Myung-Ju Ahn
Cancer Res Treat. 2022;54(1):150-156.   Published online May 6, 2021
DOI: https://doi.org/10.4143/crt.2021.306
AbstractAbstract PDFPubReaderePub
Purpose
Metachronous brain-only oligorecurrence in patients with non–small cell lung cancer (NSCLC) is a rare event with favorable prognosis, but the clinical outcome has not been fully determined. We retrospectively analyzed clinical outcomes and prognostic factors in metachronous brain-only oligorecurrence in patients with NSCLC who underwent definitive treatment.
Materials and Methods
We reviewed 4,437 NSCLC patients without oncogenic driver mutations who underwent definitive treatment between 2008 and 2018. Among them, we identified 327 patients who developed 1 to 5 brain metastases with or without systemic metastasis. Of the 327 patients, 71 had metachronous brain-only oligorecurrence without extracranial progression and were treated with local therapy to the brain. Overall survival (OS), progression-free survival (PFS), and prognostic factors affecting OS were analyzed.
Results
The median OS was 38.9 months (95% confidence interval [CI], 21.8 to 56.1 months) in 71 patients. The 2-year OS rate was 67.8% and the 5-year OS rate was 33.1%. The median PFS was 25.5 months (95% CI, 12.2 to 14.4 months). The longest surviving patient had a survival period of 115 months. Through multivariate analysis, Eastern Cooperative Oncology Group ≥ 1 (hazard ratio, 5.33; p=0.005) was associated with poor survival. There was no significant difference in OS between patients with local therapy and those with local plus systemic therapy (18.5 months vs. 34.7 months, p=0.815).
Conclusion
Metachronous brain-only oligorecurrence NSCLC patients who underwent definitive treatment experienced long-term survival with local therapy, highlighting the unique patient population. The role of systemic chemotherapy in this patient population requires further investigation.

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  • Brain Metastasis of Non-small Cell Lung Cancer After Disease-Free Survival of 5 years: Case Series and Comprehensive Literature Review
    Takahiro Suzuki, Shoichi Deguchi, Keigo Matsushima, Shinya Katsumata, Hideaki Kojima, Maeda Koki, Hayato Konno, Mitsuhiro Isaka, Takuma Oishi, Yasuhisa Ohde, Takashi Sugino, Koichi Mitsuya, Nakamasa Hayashi
    World Neurosurgery.2024; 186: e353.     CrossRef
  • Complex situations in lung cancer: multifocal disease, oligoprogression and oligorecurrence
    Raphael Werner, Nina Steinmann, Herbert Decaluwe, Hiroshi Date, Dirk De Ruysscher, Isabelle Opitz
    European Respiratory Review.2024; 33(172): 230200.     CrossRef
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  • 154 Download
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Lung Cancer
The Clinical Impact of Capmatinib in the Treatment of Advanced Non–Small Cell Lung Cancer with MET Exon 14 Skipping Mutation or Gene Amplification
Wonyoung Choi, Seog-Yun Park, Youngjoo Lee, Kun Young Lim, Minjoung Park, Geon Kook Lee, Ji-Youn Han
Cancer Res Treat. 2021;53(4):1024-1032.   Published online January 29, 2021
DOI: https://doi.org/10.4143/crt.2020.1331
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Capmatinib, an oral MET kinase inhibitor, has demonstrated its efficacy against non–small cell lung cancer (NSCLC) with MET dysregulation. We investigated its clinical impact in advanced NSCLC with MET exon 14 skipping mutation (METex14) or gene amplification.
Materials and Methods
Patients who participated in the screening of a phase II study of capmatinib for advanced NSCLC were enrolled in this study. MET gene copy number (GCN), protein expression, and METex14 were analyzed and the patients’ clinical outcome were retrospectively reviewed.
Results
A total of 72 patients were included in this analysis (group A: GCN ≥ 10 or METex14, n=14; group B: others, n=58). Among them, 13 patients were treated with capmatinib (group A, n=8; group B, n=5), and the overall response rate was 50% for group A, and 0% for group B. In all patients, the median overall survival (OS) was 20.2 months (95% confidence interval [CI], 6.9 to not applicable [NA]) for group A, and 11.3 months (95% CI, 8.2 to 20.3) for group B (p=0.457). However, within group A, median OS was 21.5 months (95% CI, 20.8 to NA) for capmatinib-treated, and 7.5 months (95% CI, 3.2 to NA) for capmatinib-untreated patients (p=0.025). Among all capmatinib-untreated patients (n=59), group A showed a trend towards worse OS to group B (median OS, 7.5 months vs. 11.3 months; p=0.123).
Conclusion
Our data suggest that capmatinib is a new compelling treatment for NSCLC with MET GCN ≥ 10 or METex14 based on the improved survival within these patients.

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    Caiyu Jiang, Shenglong Xie, Kegang Jia, Gang Feng, Xudong Ren, Youyu Wang
    Journal of Pharmaceutical Analysis.2025; : 101179.     CrossRef
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    Ann-Katrin Piper, Chelsea Penney, Jacqueline Holliday, Gary Tincknell, Yafeng Ma, Sarbar Napaki, Klaus Pantel, Daniel Brungs, Marie Ranson
    International Journal of Molecular Sciences.2024; 25(10): 5565.     CrossRef
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    Hang Zhang, Yingying Zhang, Yingying Zhu, Tian Dong, Zheng Liu
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    Bo Mi Ku, Sungwon Park, Sehhoon Park, Hyun Ae Jung, Jong-Mu Sun, Se-Hoon Lee, Jin Seok Ahn, Yoon-La Choi, Myung-Ju Ahn
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    Matthew Z Guo, Kristen A Marrone, Alexander Spira, David M Waterhouse, Susan C Scott
    OncoTargets and Therapy.2021; Volume 14: 5321.     CrossRef
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Osimertinib in Patients with T790M-Positive Advanced Non-small Cell Lung Cancer: Korean Subgroup Analysis from Phase II Studies
Myung-Ju Ahn, Ji-Youn Han, Dong-Wan Kim, Byoung Chul Cho, Jin-Hyoung Kang, Sang-We Kim, James Chih-Hsin Yang, Tetsuya Mitsudomi, Jong Seok Lee
Cancer Res Treat. 2020;52(1):284-291.   Published online July 23, 2019
DOI: https://doi.org/10.4143/crt.2019.200
AbstractAbstract PDFPubReaderePub
Purpose
Osimertinib is a third-generation, irreversible, oral epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) that potently and selectively inhibits both EGFR sensitizing mutation and EGFR T790M and has demonstrated efficacy in non-small cell lung cancer (NSCLC) central nervous system (CNS) metastases. We present results of a subgroup analysis of Korean patients from the pooled data of two global phase II trials: AURA extension (NCT01802632) and AURA2 (NCT02094261).
Materials and Methods
Enrolled patients had EGFR T790M-positive NSCLC and disease progression during or after EGFR-TKI therapy. Patients received osimertinib 80 mg orally once daily until disease progression. The primary endpoint was objective response rate (ORR).
Results
In total, 66 Korean patients received osimertinib treatment with a median treatment duration of 19 months. In the evaluable-for-response population (n=62), ORR was 74% (95% confidence interval [CI], 61.5 to 84.5) and median duration of response was 9.8 months (95% CI, 7.1 to 16.8). In the full analysis set (n=66), median progression-free survival was 10.9 months (95% CI, 8.3 to 15.0; data cutoff November 1, 2016), and median overall survival was 29.2 months (95% CI, 24.8 to 35.7; data cutoff May 1, 2018). Eight patients with CNS metastases were evaluable for response, none of whom showed CNS progression. The most common adverse events were rash (53%), cough (33%), paronychia, diarrhea, and decreased appetite (each 32%).
Conclusion
Efficacy and safety profiles of osimertinib in this subgroup are consistent with the global phase II pooled population, which supports osimertinib as a recommended treatment for Korean patients with T790M positive NSCLC.

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    S.-H. Lee, J. Menis, T.M. Kim, H.R. Kim, C. Zhou, S.A. Kurniawati, K. Prabhash, H. Hayashi, D.D.-W. Lee, M.S. Imasa, Y.L. Teh, J.C.-H. Yang, T. Reungwetwattana, V. Sriuranpong, C.-E. Wu, Y. Ang, M. Sabando, M. Thiagarajan, H. Mizugaki, V. Noronha, M. Yuli
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SUVmax Predicts Disease Progression after Stereotactic Ablative Radiotherapy in Stage I Non-small Cell Lung Cancer
Yoo-Kang Kwak, Hee Hyun Park, Kyu Hye Choi, Eun Young Park, Soo Yoon Sung, Sea-Won Lee, Ji Hyun Hong, Hyo Chun Lee, Ie Ryung Yoo, Yeon Sil Kim
Cancer Res Treat. 2020;52(1):85-97.   Published online May 17, 2019
DOI: https://doi.org/10.4143/crt.2019.007
AbstractAbstract PDFPubReaderePub
Purpose
Fluorodeoxyglucose positron emission tomography–computed tomography (PET-CT) is gaining evidence as a predictive factor in non-small cell lung cancer (NSCLC). Stereotactic ablative radiotherapy (SABR) is the standard treatment in early-stage NSCLC when a patient is unsuitable for surgery. We performed a study to assess the prognostic clinical significance of PET-CT after SABR in early-stage NSCLC.
Materials and Methods
Seventy-six patients with stage I NSCLC treated with SABR were investigated. Total radiation dose ranged from 36 to 63 Gy in three to eight fractions depending on tumor location and size. Respiratory motion control was implemented at simulation and during treatment. PET-CT prior to SABR was performed in 66 patients (86.8%).
Results
Median follow-up time was 32 months (range, 5 to 142 months). Local control rate at 1, 2, and 5 years were 95.9%, 92.8%, and 86.7%, respectively. Overall survival (OS) at 1, 2, and 5 years were 91.0%, 71.3%, and 52.1% respectively. Cause-specific survival at 1, 2, and 5 years were 98.6%, 93.1%, and 84.3% respectively. Tumor size and pre-SABR maximal standardized uptake value (SUVmax) demonstrated statistical significance in the Kaplan-Meier survival analyses with log-rank test. In multivariate analyses pre-SABR SUVmax remained statistically significant in correlation to OS (p=0.024; hazard ratio [HR], 3.2; 95% confidence interval [CI], 1.2 to 8.8) and with marginal significance in regards to regional progression-free survival (p=0.059; HR, 32.5; 95% CI, 2.6 to 402.5).
Conclusion
Pre-SABR SUVmax demonstrated a predictive power in statistical analyses. Tumors with SUVmax above 6 at diagnosis were associated with inferior outcomes.

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    J.R. Infante, J. Cabrera, J.I. Rayo, C. Cruz, J. Serrano, M Moreno, A. Martínez, P. Jiménez, A. Cobo
    Revista Española de Medicina Nuclear e Imagen Molecular (English Edition).2020; 39(6): 353.     CrossRef
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Clinical Significance of Pleural Attachment and Indentation of Subsolid Nodule Lung Cancer
Hyung-Jun Kim, Jun Yeun Cho, Yeon Joo Lee, Jong Sun Park, Young-Jae Cho, Ho Il Yoon, Jin-Haeng Chung, Sukki Cho, Kwhanmien Kim, Kyung Won Lee, Jae Ho Lee, Choon-Taek Lee
Cancer Res Treat. 2019;51(4):1540-1548.   Published online March 25, 2019
DOI: https://doi.org/10.4143/crt.2019.057
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Lung cancers presenting as subsolid nodule commonly have peripheral location, making the cancer-pleura relationship noteworthy. We aimed to evaluate the effect of pleural attachment and/or indentation on visceral pleural invasion (VPI) and recurrence-free survival.
Materials and Methods
Patients who underwent curative resection of lung cancer as subsolid nodules from April 2007 to January 2016 were retrospectively evaluated. They were divided into four groups according to their relationship with the pleura. Clinical, radiographical, and pathological findings were analyzed.
Results
Among 404 patients with malignant subsolid nodule, 120 (29.7%) had neither pleural attachment nor indentation, 26 (6.4%) had attachment only, 117 (29.0%) had indentation only, and 141 (34.9%) had both. VPI was observed in nodules of 36 patients (8.9%), but absent in nonsolid nodules and in those without pleural attachment and/or indentation. Compared to subsolid nodules with concurrent pleural attachment and indentation, those with attachment only (odds ratio, 0.12; 95% confidence interval [CI], 0.02 to 0.98) and indentation only (odds ratio, 0.10; 95% CI, 0.03 to 0.31) revealed lower odds of VPI. On subgroup analysis, the size of the solid portion was associated with VPI among those with pleural attachment and indentation (p=0.021). Such high-risk features for VPI were associated with earlier lung cancer recurrence (adjusted hazard ratio, 3.31; 95% CI, 1.58 to 6.91).
Conclusion
Concurrent pleural attachment and indentation are risk factors for VPI, and the odds increase with larger solid portion in subsolid nodules. Considering the risk of recurrence, early surgical resection could be encouraged in these patients.

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The Risk of Herpes Zoster in Patients with Non-small Cell Lung Cancer according to Chemotherapy Regimens: Tyrosine Kinase Inhibitors versus Cytotoxic Chemotherapy
Ji Young Choi, Miso Kim, Bhumsuk Keam, Tae Min Kim, Dong-Wan Kim, Dae Seog Heo, Seong Jin Jo
Cancer Res Treat. 2019;51(1):169-177.   Published online April 5, 2018
DOI: https://doi.org/10.4143/crt.2017.491
AbstractAbstract PDFPubReaderePub
Purpose
Despite the successful use of tyrosine kinase inhibitors (TKIs) in cancer patients, their effect on herpes zoster development has not been studied. The aim of this study was to evaluate and compare the effects of epidermal growth factor receptor (EGFR) TKI and cytotoxic chemotherapy on the risk of herpes zoster development in non-small cell lung cancer (NSCLC) patients.
Materials and Methods
We conducted a medical review of all eligible NSCLC patients in Seoul National University hospital between 2002 and 2015. We classified patients based on whether they previously underwent EGFR TKI therapy into either the TKI group or the cytotoxic group. We compared the incidence rates of herpes zoster during TKI therapy and cytotoxic chemotherapy. Additionally, the longitudinal risk of herpes zoster from TKIs was analyzed using the incidence rate ratio (IRR) of the TKI group to the cytotoxic group and the log-rank test of the Kaplan-Meier method.
Results
Of the 2,981 NSCLC patients, 54 patients (1.54%) developed herpes zoster. In the TKI group (2,002 patients), the IRR of herpes zoster during TKI therapy compared to that during cytotoxic chemotherapy was 1.05 (95% confidence interval [CI], 0.53 to 2.09). The IRR of the TKI group compared to the cytotoxic group was 1.33 (95% CI, 0.64 to 2.76). The Kaplan-Meier cumulative risk of both groups was not significantly different.
Conclusion
Our results show that the incidence rate of herpes zoster in the TKI group was not statistically different from the incidence in the cytotoxic group during and after chemotherapy in NSCLC patients.

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Phase 1 Studies of Poziotinib, an Irreversible Pan-HER Tyrosine Kinase Inhibitor in Patients with Advanced Solid Tumors
Tae Min Kim, Keun-Wook Lee, Do-Youn Oh, Jong-Seok Lee, Seock-Ah Im, Dong-Wan Kim, Sae-Won Han, Yu Jung Kim, Tae-You Kim, Jee Hyun Kim, Hyesun Han, Woo Ho Kim, Yung-Jue Bang
Cancer Res Treat. 2018;50(3):835-842.   Published online August 29, 2017
DOI: https://doi.org/10.4143/crt.2017.303
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Poziotinib, a pan-human epidermal growth factor receptor 2 (HER) tyrosine kinase inhibitor, has shown potent activity againstwild type of epidermal growth factorreceptor(EGFR) family kinases including EGFR, HER2, and HER4 and EGFR-mutant cells in vitro. Two phase I studies were conducted to determine the maximum tolerated dose (MTD), pharmacokinetics, safety, and antitumor activity against advanced solid tumors.
Materials and Methods
Standard 3+3 dose escalation scheme using two different dosing schedules were studied: once daily, 14-day on, and 7-day off (intermittent schedule); and once daily continuous dosing with food effect. Additional patients were enrolled in an expansion cohort.
Results
A total of 75 patients were enrolled in the two studies. The most common drug-related treatment-emergent adverse eventswere diarrhea,rash, stomatitis, pruritus, and anorexia. Doselimiting toxicities were grade 3 diarrhea in the intermittent schedule and grade 3 anorexia and diarrhea in the continuous dosing schedule. The MTDs were determined as 24 mg/day in the intermittent dosing schedule and 18 mg/day in the continuous dosing schedule. Eight (16%) and 24 (47%) of 51 evaluable patients in the intermittent schedule achieved partial response (PR) and stable disease (SD), respectively. Four (21%) and six (32%) of 19 evaluable patients in continuous dosing schedule achieved PR and SD, respectively. Patients with PR (n=7) or SD ≥ 12 weeks (n=7) had HER2 amplification (n=7; breast cancer, 5; and stomach cancer, 2) and EGFR amplification (n=1, squamous cell lung cancer).
Conclusion
Poziotinib was safe and well tolerated in patients with advanced solid tumors. It showed an encouraging activity against EGFR-mutant and HER2-amplified cancers.

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Randomized Phase II Study of Afatinib Plus Simvastatin Versus Afatinib Alone in Previously Treated Patients with Advanced Nonadenocarcinomatous Non-small Cell Lung Cancer
Youngjoo Lee, Ki Hyeong Lee, Geon Kook Lee, Soo-Hyun Lee, Kun Young Lim, Jungnam Joo, Yun Jung Go, Jin Soo Lee, Ji-Youn Han
Cancer Res Treat. 2017;49(4):1001-1011.   Published online January 13, 2017
DOI: https://doi.org/10.4143/crt.2016.546
AbstractAbstract PDFPubReaderePub
Purpose
This phase II study examined whether the addition of simvastatin to afatinib provides a clinical benefit compared with afatinib monotherapy in previously treated patients with nonadenocarcinomatous non-small cell lung cancer (NA-NSCLC).
Materials and Methods
Patientswith advancedNA-NSCLCwho progressed after one ortwo chemotherapy regimens were randomly assigned to a simvastatin (40 mg/day) plus afatinib (40 mg/day) (AS) arm or to an afatinib (A) arm. The primary endpoint was response rate (RR).
Results
Sixty-eight patients were enrolled (36 in the AS arm and 32 in the A arm). The RR was 5.7% (95% confidence interval [CI], 0.7 to 19.2) for AS and 9.4% (95% CI, 2.0 to 25.0) for A (p=0.440). In arms AS and A, the median progression-free survival (PFS) was 1.0 versus 3.6 months (p=0.240) and the overall survival was 10.0 months versus 7.0 months (p=0.930), respectively. Skin rash, stomatitis, and diarrhea were the most common adverse events in both arms. More grade 3 or 4 diarrhea was observed in arm A (18.8% vs. 5.6% in arm AS). In all patients, the median PFS for treatment including afatinib was not correlated with the status of epidermal growth factor receptor (EGFR) mutation (p=0.122), EGFR fluorescence in situ hybridization (p=0.944), or EGFR immunohistochemistry (p=0.976). However, skin rash severity was significantly related to the risk of progression for afatinib (hazard ratio for skin rash grade ≥ 2 vs. grade < 2, 0.44; 95% CI, 0.25 to 0.78; p=0.005).
Conclusion
There were no significant differences in the efficacy between AS and A arms in patients with NA-NSCLC.

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Incorporating Erlotinib or Irinotecan Plus Cisplatin into Chemoradiotherapy for Stage III Non-small Cell Lung Cancer According to EGFR Mutation Status
Youngjoo Lee, Ji-Youn Han, Sung Ho Moon, Byung-Ho Nam, Kun Young Lim, Geon Kook Lee, Heung Tae Kim, Tak Yun, Hye Jin An, Jin Soo Lee
Cancer Res Treat. 2017;49(4):981-989.   Published online January 6, 2017
DOI: https://doi.org/10.4143/crt.2016.522
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Concurrent chemoradiotherapy (CCRT) is the standard care for stage III non-small cell lung cancer (NSCLC) patients; however, a more effective regimen is needed to improve the outcome by better controlling occult metastases. We conducted two parallel randomized phase II studies to incorporate erlotinib or irinotecan-cisplatin (IP) into CCRT for stage III NSCLC depending on epidermal growth factor receptor (EGFR) mutation status.
Materials and Methods
Patients with EGFR-mutant tumors were randomized to receive three cycles of erlotinib first and then either CCRT with erlotinib followed by erlotinib (arm A) or CCRT with IP only (arm B). Patients with EGFR unknown or wild-type tumors were randomized to receive either three cycles of IP before (arm C) or after CCRT with IP (arm D).
Results
Seventy-three patients were screened and the study was closed early because of slow accrual after 59 patients were randomized. Overall, there were seven patients in arm A, five in arm B, 22 in arm C, and 25 in arm D. The response rate was 71.4% and 80.0% for arm A and B, and 70.0% and 73.9% for arm C and D. The median overall survival (OS) was 39.3 months versus 31.2 months for arm A and B (p=0.442), and 16.3 months versus 25.3 months for arm C and D (p=0.050). Patients with sensitive EGFR mutations had significantly longer OS than EGFR-wild patients (74.8 months vs. 25.3 months, p=0.034). There were no unexpected toxicities.
Conclusion
Combined-modality treatment by molecular diagnostics is feasible in stage III NSCLC. EGFR-mutant patients appear to be a distinct subset with longer survival.

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Efficacy and Safety of First-Line Necitumumab Plus Gemcitabine and Cisplatin Versus Gemcitabine and Cisplatin in East Asian Patients with Stage IV Squamous Non-small Cell Lung Cancer: A Subgroup Analysis of the Phase 3, Open-Label, Randomized SQUIRE Study
Keunchil Park, Eun Kyung Cho, Maximino Bello, Myung-Ju Ahn, Sumitra Thongprasert, Eun-Kee Song, Victoria Soldatenkova, Henrik Depenbrock, Tarun Puri, Mauro Orlando
Cancer Res Treat. 2017;49(4):937-946.   Published online January 6, 2017
DOI: https://doi.org/10.4143/crt.2016.423
AbstractAbstract PDFPubReaderePub
Purpose
The phase 3 randomized SQUIRE study revealed significantly longer overall survival (OS) and progression-free survival (PFS) for necitumumab plus gemcitabine and cisplatin (neci+GC) than for gemcitabine and cisplatin alone (GC) in 1,093 patients with previously untreated advanced squamous non-small cell lung cancer (NSCLC). This post hoc subgroup analysis assessed the efficacy and safety of neci+GC among East Asian (EA) patients enrolled in the study.
Materials and Methods
All patients received up to six 3-week cycles of gemcitabine (days 1 and 8, 1,250 mg/m²) and cisplatin (day 1, 75 mg/m²). Patients in the neci+GC arm also received necitumumab (days 1 and 8, 800 mg) until disease progression or unacceptable toxicity. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated from stratified Cox proportional hazards models.
Results
In EA patients, there were improvements for neci+GC (n=43) versus GC (n=41) in OS (HR, 0.805; 95% CI, 0.484 to 1.341) and PFS (HR, 0.720; 95% CI, 0.439 to 1.180), consistent with the results for non-EA patients observed in the present study. The overall safety data were consistent between EA and non-EA patients. A numerically higher proportion of patients experienced serious adverse events (AEs), grade ≥ 3 AEs, and AEs with an outcome of death for neci+GC versus GC in EA patients and EA patients versus non-EA patients for neci+GC.
Conclusion
Although limited by the small sample size and post hoc nature of the analysis, these findings are consistent with those of the overall study and suggest that neci+GC offers a survival advantage and favorable benefit/risk for EA patients with advanced squamous NSCLC.

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ERCC1 Expression-Based Randomized Phase II Study of Gemcitabine/Cisplatin Versus Irinotecan/Cisplatin in Patients with Advanced Non-small Cell Lung Cancer
Ji-Youn Han, Geon Kook Lee, Kun Young Lim, Young Ju Lee, Byung Ho Nam, Jin Soo Lee
Cancer Res Treat. 2017;49(3):678-687.   Published online October 11, 2016
DOI: https://doi.org/10.4143/crt.2016.365
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
We evaluated the clinical utility of excision repair cross-complementation group 1 (ERCC1) expression as a predictive biomarker for platinum-based chemotherapy in advanced non-small cell lung cancer (NSCLC).
Materials and Methods
Eligible patients were randomly assigned to the GP (gemcitabine 1,250 mg/m2 on days 1 and 8, and cisplatin 75 mg/m2 on day 1 every 3 weeks) or IP (irinotecan 65 mg/m2 and cisplatin 30 mg/m2 on days 1 and 8 every 3 weeks) arm. The primary goal of this study was to compare the response rate (RR) of the GP and IP arms according to the ERCC1 expression level.
Results
A total of 279 patients were randomly assigned to the GP (n=139) and IP (n=140) arms, among which 63% were ERCC1-positive and 268 patients were assessable for the RR. The GP and IP arms did not differ significantly with respect to the RR (29.8% vs. 27.0%, respectively; p=0.082), median progression-free survival (PFS; 4.5 months vs. 3.9 months, respectively; p=0.117), and overall survival (OS; 16.5 months vs. 16.7 months, respectively; p=0.313). When comparing the efficacy between the ERCC1-positive and ERCC1-negative groups, there was no significant difference in the RR (GP, 28.2% vs. 32.6%, respectively, p=0.509; IP, 30.2% vs. 21.6%, respectively, p=0.536), median PFS (GP, 4.6 months vs. 5.0 months, respectively, p=0.506; IP, 3.9 months vs. 3.7 months, respectively, p=0.748), or median OS (GP, 18.6 months vs. 11.9 months, respectively, p=0.070; IP, 17.5 months vs. 14.0 months, respectively, p=0.821).
Conclusion
Immunohistochemical analysis of the ERCC1 expression level did not differentiate the efficacy of platinum-based chemotherapy in advanced NSCLC.

Citations

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    Guoping Li, Dan Cheng, Jamal A. Mahajna
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A Phase II Study of Poziotinib in Patients with Epidermal Growth Factor Receptor (EGFR)-Mutant Lung Adenocarcinoma Who Have Acquired Resistance to EGFR–Tyrosine Kinase Inhibitors
Ji-Youn Han, Ki Hyeong Lee, Sang-We Kim, Young Joo Min, Eunkyung Cho, Youngjoo Lee, Soo-Hyun Lee, Hyae Young Kim, Geon Kook Lee, Byung Ho Nam, Hyesun Han, Jina Jung, Jin Soo Lee
Cancer Res Treat. 2017;49(1):10-19.   Published online May 3, 2016
DOI: https://doi.org/10.4143/crt.2016.058
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
We examined the efficacy of poziotinib, a second-generation epidermal growth factor receptor (EGFR)–tyrosine kinase inhibitor (TKI) in patients with lung adenocarcinoma with activating EGFR mutations, who developed acquired resistance (AR) to EGFR-TKIs.
Materials and Methods
This single-arm phase II study included EGFR-mutant lung adenocarcinoma with AR to erlotinib or gefitinib based on the Jackman criteria. Patients received poziotinib 16 mg orally once daily in a 28-day cycle. The primary endpoint was progression-free survival (PFS). Prestudy tumor biopsies and blood samples were obtained to determine resistance mechanisms.
Results
Thirty-nine patients were treated. Tumor genotyping was determined in 37 patients; 19 EGFR T790M mutations and two PIK3CAmutations were detected in the prestudy tumors, and seven T790M mutations were detected in the plasma assay. Three (8%; 95% confidence interval [CI], 2 to 21) and 17 (44%; 95% CI, 28 to 60) patients had partial response and stable disease, respectively. The median PFS and overall survival were 2.7 months (95% CI, 1.8 to 3.7) and 15.0 months (95% CI, 9.5 to not estimable), respectively. A longer PFS was observed for patients without T790M or PIK3CA mutations in tumor or plasma compared to those with these mutations (5.5 months vs. 1.8 months, p=0.003). The most frequent grade 3 adverse events were rash (59%), mucosal inflammation (26%), and stomatitis (18%). Most patients required one (n=15) or two (n=15) dose reductions.
Conclusion
Low activity of poziotinib was detected in patients with EGFR-mutant non-small cell lung cancer who developed AR to gefitinib or erlotinib, potentially because of severe-toxicityimposed dose limitation.

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East Asian Subgroup Analysis of a Randomized, Double-Blind, Phase 3 Study of Docetaxel and Ramucirumab Versus Docetaxel and Placebo in the Treatment of Stage IV Non-small Cell Lung Cancer Following Disease Progression after One Prior Platinum-Based Therapy (REVEL)
Keunchil Park, Joo-Hang Kim, Eun Kyung Cho, Jin-Hyoung Kang, Jin-Yuan Shih, Annamaria Hayden Zimmermann, Pablo Lee, Ekaterine Alexandris, Tarun Puri, Mauro Orlando
Cancer Res Treat. 2016;48(4):1177-1186.   Published online February 22, 2016
DOI: https://doi.org/10.4143/crt.2015.401
AbstractAbstract PDFPubReaderePub
Purpose
REVEL demonstrated improved overall survival (OS), progression-free survival (PFS), and objective response rate (ORR) with docetaxel+ramucirumab versus docetaxel+placebo in 1,253 intent-to-treat (ITT) stage IV non-small cell lung cancer patients with disease progression following platinum-based chemotherapy. Results from the East Asian subgroup analysis are reported.
Materials and Methods
Subgroup analyses were performed in the East Asian ITT population (n=89). Kaplan-Meier analysis and Cox proportional hazards regression were performed for OS and PFS, and the Cochran-Mantel-Haenszel test was performed for response rate.
Results
In docetaxel+ramucirumab (n=43) versus docetaxel+placebo (n=46), median OS was 15.44 months versus 10.17 months (hazard ratio [HR], 0.762; 95% confidence interval [CI], 0.444 to 1.307), median PFS was 4.88 months versus 2.79 months (HR, 0.658; 95% CI, 0.408 to 1.060), and ORR was 25.6% (95% CI, 13.5 to 41.2) versus 8.7% (95% CI, 2.4 to 20.8). Due to increased incidence of neutropenia and febrile neutropenia in East Asian patients, starting dose of docetaxel was reduced for newly enrolled East Asian patients (75 to 60 mg/m2, n=24). In docetaxel+ramucirumab versus docetaxel+placebo, incidence of neutropenia was 84.4% versus 72.7% (75 mg/m2) and 54.5% versus 38.5% (60 mg/m2). Incidence of febrile neutropenia was 43.8% versus 12.1% (75 mg/m2) and 0% versus 7.7% (60 mg/m2).
Conclusion

Results
of this subgroup analysis showed a trend favoring ramucirumab+docetaxel for median OS, PFS, and improved ORR in East Asian patients, consistent with ITT population results. Reduction of starting dose of docetaxel in East Asian patients was associated with improved safety.

Citations

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