Cancer Research and Treatment

Original Articles

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; Received January 19, 2024 Accepted July 8, 2024 Published online July 10, 2024; DOI: https://doi.org/10.4143/crt.2024.073 [Epub ahead of print]

Abstract PDF Supplementary Material PubReader ePub: 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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Lung and Thoracic cancer

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

Abstract PDF Supplementary Material PubReader ePub

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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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
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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Lung cancer

Active Treatment Improves Overall Survival in Extremely Older Non–Small Cell Lung Cancer Patients: A Multicenter Retrospective Cohort Study: Su Yeon Lee, Yoon-Ki Hong, Wonjun Ji, Jae Cheol Lee, Chang Min Choi, Korean Association for Lung Cancer, Korea Central Cancer Registry; Cancer Res Treat. 2021;53(1):104-111. Published online October 5, 2020; DOI: https://doi.org/10.4143/crt.2020.894

Abstract PDF Supplementary Material PubReader ePub

Purpose
As the aging of society progresses, the proportion of extremely older lung cancer patients has also increased; However, studies of these patients with non–small cell lung cancer are limited. Therefore, we investigated the initial treatment modalities and survival outcomes for patients aged 80 years or over.
Materials and Methods
We included a multicenter retrospective cohort from the Korean Association for Lung Cancer Registry, which surveys 10% of the newly diagnosed lung cancer patients across 52 hospitals in Korea. We analyzed and compared the 2014–2016 data of the non–small cell lung cancer patients aged ≥ 80 years and those aged < 80 years.
Results
Of the 6,576 patients reviewed, 780 patients were aged ≥ 80 years, and 5,796 patients were aged < 80 years. In the patients aged ≥ 80 years, surgery and radiation therapy resulted in longer patient survival among those with a resectable tumor (stage I–II) than the best supportive care (median survival, not reached [surgery] vs. 32.2 months [radiation therapy] vs. 11.43 months [best supportive care]). The duration of survival in patients with advanced-stage (IV) lung cancers was higher after chemotherapy than after the best supportive care (median survival, 8.63 months vs. 2.5 months). Patients with stage IV adenocarcinoma who received targeted therapy had better survival than those who did not (median survival, 9.0 months vs. 4.3 months).
Conclusion
Even in extremely older patients, active treatments, such as surgery, radiation therapy, and chemotherapy, can result in better survival outcomes than the best supportive care.

Citations

Citations to this article as recorded by

ADENOCARCINOMA PULMONAR - ASPECTOS EPIDEMIOLÓGICOS, FISIOPATOLÓGICOS E TERAPÊUTICOS
Marcelo Vinicius Pereira Silva, Elizeu Augusto de Freitas Junior, Allan Martins de Oliveira, Elaine Timm, Mariana Brito Siqueira, Mônica Stefany Martelli, Elielson Mendonça de Oliveira, Victor Cavalcante Machado, Igor Vinicius Barbino Ferrari, Pamella Hag
Revista Contemporânea.2024; 4(5): e4464. CrossRef
Association between clinical outcomes and local treatment in stage IV non‐small cell lung cancer patients with single extrathoracic metastasis
Jeong Uk Lim, Hye Seon Kang, Ah Young Shin, Chang Dong Yeo, Chan Kwon Park, Sang Haak Lee, Seung Joon Kim
Thoracic Cancer.2022; 13(9): 1349. CrossRef
Characteristics and clinical outcomes of patients with nonsmoking small cell lung cancer in Korea
Hye Seon Kang, Jung Uk Lim, Chang Dong Yeo, Chan Kwon Park, Sang Haak Lee, Seung Joon Kim, Ho Cheol Kim, Chang Min Choi, Chi Young Jung, Deog Gon Cho, Jae Hyun Jeon, Jeong Eun Lee, Jin Seok Ahn, Yeongdae Kim, Yoo-Duk Choi, Yang-Gun Suh, Jung-Eun Kim, Youn
BMC Pulmonary Medicine.2022;[Epub] CrossRef

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