Cancer Research and Treatment

Original Articles

Gastrointestinal cancer

Salvage Radiotherapy for Loco-regional Recurrence of Esophageal Cancer Following Surgery: Won Kyung Cho, Jae Myoung Noh, Dongryul Oh, Yong Chan Ahn, Jong-Mu Sun, Hong Kwan Kim, Young Mog Shim; Cancer Res Treat. 2025;57(1):165-173. Published online July 26, 2024; DOI: https://doi.org/10.4143/crt.2024.191

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Purpose
There is few evidence regarding the optimal salvage treatment options for loco-reginal recurrence of esophageal cancer. This study aimed to evaluate the clinical outcomes of salvage radiotherapy (RT) in patients with loco-regional recurrence (LRR) after surgery for esophageal cancer.
Materials and Methods
We retrospectively reviewed 147 esophageal cancer patients who received salvage RT for loco-regional recurrence between 1996 and December 2019. A total dose of 60 Gy in 20 fractions was used for RT alone and 60-70 Gy in 30-35 fractions for concurrent chemoradiotherapy (CCRT).
Results
The patients’ median age was 65 years (range, 41 to 86 years). The median disease-free interval was 13.5 months (1.0 to 97.4 months). After a median 18.8 months follow-up, the 2-year overall survival (OS) and progression-free survival (PFS) rates were 38.1% and 25.9%, respectively. The median OS and PFS were 18.8 and 8.4 months, respectively. The CCRT could not improve OS compared to RT (p=0.336), but there was a trend of better PFS in the CCRT group. Regarding toxicities, the rate of grade 3 or higher toxicity was 10.9% occurring in 16 patients, and it was higher in patients who received CCRT than in the RT alone group (19.6% vs. 6.3%, p=0.023).
Conclusion
Salvage RT alone as well as CCRT could be effective in patients with locoregionally recurrent esophageal cancer.

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Salvage Chemoradiotherapy for Loco-Regional Recurrence of Esophageal Squamous Cell Carcinoma After Esophagectomy
Atsuto Katano, Tomoki Kiritoshi, Subaru Sawayanagi, Hideomi Yamashita
Journal of Clinical Medicine.2025; 14(5): 1540. CrossRef

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Lung and Thoracic cancer

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

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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-67_D7/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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Adjuvant immunotherapy improves survival in completely resected stage IB–III NSCLC: a systematic review and meta-analysis
Hong Huang, Pengchen Bao, Hongyu Jin, Wenyang Li, Hui Shen, Zhen Qin, Ying Pan, Xinming Su, Delei Kong
Frontiers in Oncology.2025;[Epub] CrossRef
Advances in molecular pathology and therapy of non-small cell lung cancer
Qing Huang, Yuanxiang Li, Yingdan Huang, Jingyi Wu, Wendai Bao, Chang Xue, Xiaoyu Li, Shuang Dong, Zhiqiang Dong, Sheng Hu
Signal Transduction and Targeted Therapy.2025;[Epub] CrossRef
A retrospective analysis of neoadjuvant chemotherapy in pneumonectomy for locally advanced central non–small cell lung cancer
Yuchen Wang, Zhihang Dang, Pu Jiang, Zhifeng Li, Jin Yang, Kun Gao, Xiaona Chen, Jifang Yao
PeerJ.2025; 13: e20007. CrossRef

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The Incidence and Risk Factors of Chronic Pulmonary Infection after Radiotherapy in Patients with Lung Cancer: Yeonseok Choi, Jae Myoung Noh, Sun Hye Shin, Kyungjong Lee, Sang-Won Um, Hojoong Kim, Hongryull Pyo, Yong Chan Ahn, Byeong-Ho Jeong; Cancer Res Treat. 2023;55(3):804-813. Published online January 3, 2023; DOI: https://doi.org/10.4143/crt.2022.1305

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Purpose
This study aimed to investigate cumulative incidence and risk factors associated with chronic pulmonary infection (CPI) development after radiotherapy for lung cancer.
Materials and Methods
We retrospectively analyzed 1,872 patients with lung cancer who received radiotherapy for lung cancer from 2010-2014, had a follow-up period of ≥ 3 months after radiotherapy, and did not have CPI at the time of radiotherapy. CPI was defined as pulmonary tuberculosis, non-tuberculous mycobacterial pulmonary disease, chronic pulmonary aspergillosis, or pulmonary actinomycosis. The cumulative incidence of CPI and overall survival (OS) were estimated using the Kaplan-Meier method, and a multivariable Cox proportional hazards analysis was performed to identify risk factors associated with CPI development.
Results
The median follow-up period was 2.3 years with OS rates of 55.6% and 37.6% at 2 and 5 years, respectively. CPI developed in 59 patients at a median of 1.8 years after radiotherapy, with cumulative incidence rates of 1.1%, 3.4%, 5.0%, and 6.8% at 1, 3, 5, and 7 years, respectively. A lower body mass index, interstitial lung disease, prior pulmonary tuberculosis, larger clinical target volume, history of lung cancer surgery or radiation pneumonitis, and use of inhaled corticosteroids were independent risk factors for CPI development.
Conclusion
The long-term survival rate of lung cancer patients receiving radiotherapy was not low, but the cumulative incidence of CPI gradually increased to 6.8% at 7 years after radiotherapy. Therefore, close monitoring of CPI development is required in surviving patients with risk factors.

Citations

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Chronic progressive pulmonary aspergillosis within the irradiated field after stereotactic body radiotherapy: two case reports
Nao Mamuro, Noriko Kishi, Yukinori Matsuo, Masahiro Yoneyama, Hiroyuki Inoo, Minoru Inoue, Takashi Mizowaki
International Cancer Conference Journal.2025; 14(2): 113. CrossRef
Predictive nomogram for risk of pulmonary infection in lung cancer patients undergoing radiochemotherapy: development and performance evaluation
Yujie Huang
American Journal of Cancer Research.2025; 15(2): 781. CrossRef
The Inter-Relationships Among the Risk Factors for Pulmonary Infection and the Diagnostic Utility of Inflammatory Markers in Patients with Non-Small Cell Lung Cancer
Wenwen Qin, Tiebin You, Tai Guo, Ruixin Tian, Xiaoman Cui, Ping Wang
Infection and Drug Resistance.2025; Volume 18: 1111. CrossRef
Incidence and predictors of pulmonary aspergillosis in patients with lung cancer: a systematic review and meta-analysis
Geling Teng, Feng Jin, Hua Zhang, Min Zhang
Frontiers in Medicine.2025;[Epub] CrossRef
Host Risk Factors for Tuberculosis
Vahid Asgharzadeh, Seyyed Amin Seyyed Rezaei, Mohammad Asgharzadeh, Jalil Rashedi, Hossein Samadi Kafil, Hossein Jalaei Nobari, Ahmad Ali Khalili, Mortaza Raeisi, Mahdi Asghari Ozma, Behroz Mahdavi Poor
Infectious Disorders - Drug Targets.2025;[Epub] CrossRef
Interaction between Dectin-1 gene polymorphisms and low weight on the risk of invasive pulmonary aspergillosis in patients with lung cancer undergoing surgery
Wenfang Jin, Yu Yao, Yanling Lv
Discover Oncology.2025;[Epub] CrossRef
Coexisting Lung Cancer and Pulmonary Tuberculosis: A Comprehensive Review From Incidence to Management
Wendi Zhou, Hongxu Lu, Jiamin Lin, Jialou Zhu, Jizhen Liang, Yalin Xie, Jinxing Hu, Ning Su
Cancer Reports.2025;[Epub] CrossRef
Risk factors for pulmonary infection after thoracoscopic radical resection of lung cancer in elderly patients with diabetes mellitus
Zi-Yuan Chen, Zhi-Qi Hong, Tie-Qiao Wang, Guo-Mei-Zhi Fu, Wen-Min Su, Cheng-Wei Zhou
World Journal of Diabetes.2025;[Epub] CrossRef
Clinical Analysis of Preoperative Nebulized Inhalation of Budesonide in Reducing Postoperative Complications in Patients Undergoing Lobectomy
紫燕姚
Nursing Science.2025; 14(10): 1920. CrossRef
Global trends, risk factors, and therapeutic associations of fungal pulmonary infections in lung cancer: A systematic review and meta-analysis
Milad Sheervalilou1, Mostafa Ghanei1, Masoud Arabfard1
Jornal Brasileiro de Pneumologia.2025; : e20250076. CrossRef
Invasive aspergillosis complicated in a patient with non-small cell lung cancer harboring RET fusion during treatment with RET-TKIs: a case report and literature review
Kaidiriye Setiwalidi, Yimeng Li, Yuyan Ma, Zhanpeng Hao, Yujia Zhao, Yuxin Zhang, Xuan Liang, Tao Tian, Zhiping Ruan, Yu Yao, Xiao Fu
Frontiers in Oncology.2024;[Epub] CrossRef

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General

Targeted Liquid Biopsy Using Irradiation to Facilitate the Release of Cell-Free DNA from a Spatially Aimed Tumor Tissue: Jae Myoung Noh, Yeon Jeong Kim, Ho Yun Lee, Changhoon Choi, Won-Gyun Ahn, Taeseob Lee, Hongryull Pyo, Jee Hyun Park, Donghyun Park, Woong-Yang Park; Cancer Res Treat. 2022;54(1):40-53. Published online May 25, 2021; DOI: https://doi.org/10.4143/crt.2021.151

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Purpose
We investigated the feasibility of using an anatomically localized, target-enriched liquid biopsy (TLB) in mouse models of lung cancer.
Materials and Methods
After irradiating xenograft mouse with human lung cancer cell lines, H1299 (NRAS proto-oncogene, GTPase [NRAS] Q61K) and HCC827 (epidermal growth factor receptor [EGFR] E746-750del), circulating (cell-free) tumor DNA (ctDNA) levels were monitored with quantitative polymerase chain reaction on human long interspersed nuclear element-1 and cell line-specific mutations. We checked dose-dependency at 6, 12, or 18 Gy to each tumor-bearing mouse leg using 6-MV photon beams. We also analyzed ctDNA of lung cancer patients by LiquidSCAN, a targeted deep sequencing to validated the clinical performances of TLB method.
Results
Irradiation could enhance the detection sensitivity of NRAS Q61K in the plasma sample of H1299-xenograft mouse to 4.5- fold. While cell-free DNA (cfDNA) level was not changed at 6 Gy, ctDNA level was increased upon irradiation. Using double-xenograft mouse with H1299 and HCC827, ctDNA polymerase chain reaction analysis with local irradiation in each region could specify mutation type matched to transplanted cell types, proposing an anatomically localized, TLB. Furthermore, when we performed targeted deep sequencing of cfDNA to monitor ctDNA level in 11 patients with lung cancer who underwent radiotherapy, the average ctDNA level was increased within a week after the start of radiotherapy.
Conclusion
TLB using irradiation could temporarily amplify ctDNA release in xenograft mouse and lung cancer patients, which enables us to develop theragnostic method for cancer patients with accurate ctDNA detection.

Citations

Citations to this article as recorded by

Modulating cell-free DNA biology as the next frontier in liquid biopsies
Shervin Tabrizi, Carmen Martin-Alonso, Kan Xiong, Sangeeta N. Bhatia, Viktor A. Adalsteinsson, J. Christopher Love
Trends in Cell Biology.2025; 35(6): 459. CrossRef
Establishment of xenografts and methods to evaluate tumor burden for the three most frequent subclasses of pediatric-type diffuse high grade gliomas
Leire Balaguer-Lluna, Nagore G. Olaciregui, Rosario Aschero, Claudia Resa-Pares, Sonia Paco, Maria Cuadrado-Vilanova, Victor Burgueño, Merce Baulenas-Farres, Carles Monterrubio, Alejandro Manzanares, Eva Rodríguez, Cinzia Lavarino, Jaume Mora, Angel M. Ca
Journal of Neuro-Oncology.2025; 172(3): 599. CrossRef
Early Dynamics of Circulating Tumor DNA Following Curative Hypofractionated Radiotherapy Related to Disease Control in Lung Cancer
Kyungmi Yang, Jae Myoung Noh, Yeon Jeong Kim, Hongryull Pyo
Diagnostics.2025; 15(10): 1198. CrossRef
Improvement of the sensitivity of circulating tumor DNA-based liquid biopsy: current approaches and future perspectives
Ekaterina S. Kuligina, Grigoriy A. Yanus, Evgeny N. Imyanitov
Exploration of Targeted Anti-tumor Therapy.2025;[Epub] CrossRef
The VIGILANCE Study Protocol: An Innovative Study to Identify Prognostic and Response Biomarkers in Patients with Stage III Non-Small-Cell Lung Cancer Treated with Curative-Intent Radiotherapy
Ashley Horne, Amelia Payne, Harry Crawford, Clare Dempsey, Hitesh Mistry, Gareth Price, Corinne Faivre-Finn
BioMed.2025; 5(4): 27. CrossRef
Surpassing sensitivity limits in liquid biopsy
Tina Moser, Ellen Heitzer
Science.2024; 383(6680): 260. CrossRef
Priming agents transiently reduce the clearance of cell-free DNA to improve liquid biopsies
Carmen Martin-Alonso, Shervin Tabrizi, Kan Xiong, Timothy Blewett, Sainetra Sridhar, Andjela Crnjac, Sahil Patel, Zhenyi An, Ahmet Bekdemir, Douglas Shea, Shih-Ting Wang, Sergio Rodriguez-Aponte, Christopher A. Naranjo, Justin Rhoades, Jesse D. Kirkpatric
Science.2024;[Epub] CrossRef
Treatment Response Biomarkers: Working Toward Personalized Radiotherapy for Lung Cancer
Ashley Horne, Ken Harada, Katherine D. Brown, Kevin Lee Min Chua, Fiona McDonald, Gareth Price, Paul Martin Putora, Dominic G. Rothwell, Corinne Faivre-Finn
Journal of Thoracic Oncology.2024; 19(8): 1164. CrossRef
Basic Science with Preclinical Models to Investigate and Develop Liquid Biopsy: What Are the Available Data and Is It a Fruitful Approach?
Benedetta Cena, Emmanuel Melloul, Nicolas Demartines, Olivier Dormond, Ismail Labgaa
International Journal of Molecular Sciences.2022; 23(10): 5343. CrossRef
Analytical and Clinical Validation of Cell-Free Circulating Tumor DNA Assay for the Estimation of Tumor Mutational Burden
Kwang Seob Lee, Jieun Seo, Choong-Kun Lee, Saeam Shin, Zisun Choi, Seungki Min, Jun Hyuek Yang, Woo Sun Kwon, Woobin Yun, Mi Ri Park, Jong Rak Choi, Hyun Cheol Chung, Seung-Tae Lee, Sun Young Rha
Clinical Chemistry.2022; 68(12): 1519. CrossRef

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Head and Neck cancer

Re-irradiation with Moderate Hypo-fractionation Using Intensity Modulated Photon or Proton Radiation Therapy in Locally Recurrent Squamous Cell Carcinoma of Nasopharynx: Heerim Nam, Yong Chan Ahn, Kyungmi Yang, Dongryul Oh, Jae Myoung Noh; Cancer Res Treat. 2022;54(1):96-108. Published online March 26, 2021; DOI: https://doi.org/10.4143/crt.2020.1349

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Purpose
This study aimed to analyze the treatment outcomes of locally recurrent nasopharyngeal cancer (NPC) patients following moderate hypo-fractionation re-irradiation (re-RT).
Materials and Methods
Sixty locally recurrent NPC patients underwent hypo-fractionation re-RT. Forty-eight point three percentage had rT3-4, and 30.0% did keratinizing squamous cell carcinoma. Intensity-modulated radiation therapy (IMRT), with or without intensity-modulated proton therapy (IMPT), was used in 66.7% of patients.
Results
With the median follow-up of 22 months (range, 2 to 254 months), 31 patients (51.7%) died, 38 (63.3%) developed further treatment failure, and 30 (50.0%) developed ≥ grade 3 toxicity (including seven grade 5) at time of analysis. The 2- and 5-year rates of overall survival, local failure-free survival, and ≥ grade 3 toxicity-free survival were 57.9% and 45.8%, 64.1% and 52.5%, and 54.8% and 44.9%, respectively. In multivariate analyses, worse factors for overall survival (OS) were iT3-4 (p=0.010) and age at re-RT ≥ 53 years (p=0.003), those for local failure-free survival (LFFS) were rT3-4 (p=0.022) and rN0-1 (p=0.035), and those for toxicity-free survival (TFS) were iT3-4 (p=0.020) and re-IMRT/IMPT (p=0.030), respectively. Cumulative dose or fraction size ≥ 3 Gy at re-RT, however, showed no significance for OS, LFFS and TFS.
Conclusion
Current re-RT with modern RT techniques by moderate hypo-fractionation scheme seemed feasible in treating locally recurrent NPC patients.

Citations

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Case Report: Unresectable recurrent nasopharyngeal cancer treated with immuno oncology
Fabiano Flauto, Rosa Maria Di Crescenzo, Vincenzo Damiano
Frontiers in Oncology.2025;[Epub] CrossRef
Envisioning an Italian Head and Neck Proton Therapy Model-Based Selection: Challenge and Opportunity
Giulia Fontana, Matteo Pepa, Anna Maria Camarda, Mimoza Strikchani, Michela Meregaglia, Alessandro Vai, Alfredo Mirandola, Barbara Vischioni, Andrea Pella, Guido Baroni, Barbara Alicja Jereczek-Fossa, Marta Scorsetti, Marco Cianchetti, Elisa D’Angelo, Pie
International Journal of Particle Therapy.2025; 16: 100745. CrossRef
Radiation oncology for the rhinologist
Helena Levyn, Fan Yang, Nancy Y. Lee
Current Opinion in Otolaryngology & Head & Neck Surgery.2024; 32(1): 5. CrossRef
Identifying the prognostic value of MRI-based tumor response and predicting the risk of radio-resistance in re-radiotherapy for locally recurrent nasopharyngeal carcinoma
Zi-Jian Lu, Ting Liu, Jie-Yi Lin, Sheng-Ting Pei, Ling Guo, Sai-Lan Liu, Hai-Qiang Mai
Radiotherapy and Oncology.2023; 183: 109635. CrossRef
Low-dose radiotherapy effects the progression of anti-tumor response
Lei Gao, Anqi Zhang
Translational Oncology.2023; 35: 101710. CrossRef
The Role of Hypofractionation in Proton Therapy
Alexandre Santos, Scott Penfold, Peter Gorayski, Hien Le
Cancers.2022; 14(9): 2271. CrossRef
Toxicity Profiles and Survival Outcomes Among Patients With Nonmetastatic Nasopharyngeal Carcinoma Treated With Intensity-Modulated Proton Therapy vs Intensity-Modulated Radiation Therapy
Xingzhe Li, Sarin Kitpanit, Anna Lee, Dennis Mah, Kevin Sine, Eric J. Sherman, Lara A. Dunn, Loren S. Michel, James Fetten, Kaveh Zakeri, Yao Yu, Linda Chen, Jung Julie Kang, Daphna Y. Gelblum, Sean M. McBride, Chiaojung J. Tsai, Nadeem Riaz, Nancy Y. Lee
JAMA Network Open.2021; 4(6): e2113205. CrossRef

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Dummy Run of Quality Assurance Program before Prospective Study of Hippocampus-Sparing Whole-Brain Radiotherapy and Simultaneous Integrated Boost for Multiple Brain Metastases from Non-small Cell Lung Cancer: Korean Radiation Oncology Group (KROG) 17-06 Study: Eunah Chung, Jae Myoung Noh, Kyu Chan Lee, Jin Hee Kim, Weon Kuu Chung, Yang-Gun Suh, Jung Ae Lee, Ki Ho Seol, Hong Gyun Wu, Yeon Sil Kim, O Kyu Noh, Jae Won Park, Dong Soo Lee, Jihae Lee, Young Suk Kim, Woo-Yoon Park, Min Kyu Kang, Sunmi Jo, Yong Chan Ahn; Cancer Res Treat. 2019;51(3):1001-1010. Published online October 15, 2018; DOI: https://doi.org/10.4143/crt.2018.415

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Purpose
Lung Cancer Subcommittee of Korean Radiation Oncology Group (KROG) has recently launched a prospective clinical trial (KROG 17-06) of hippocampus-sparing whole brain radiotherapy (HS-WBRT) with simultaneous integrated boost (SIB) in treating multiple brain metastases from non-small cell lung cancer. In order to improve trial quality, dummy run studies among the participating institutions were designed. This work reported the results of two-step dummy run procedures of the KROG 17-06 study.
Materials and Methods
Two steps tested hippocampus contouring variability and radiation therapy planning compliance. In the first step, the variation of the hippocampus delineation was investigated for two representative cases using the Dice similarity coefficients. In the second step, the participating institutions were requested to generate a HS-WBRT with SIB treatment plan for another representative case. The compliance of the treatment plans to the planning protocol was evaluated.
Results
In the first step, the median Dice similarity coefficients of the hippocampus contours for two other dummy run cases changed from 0.669 (range, 0.073 to 0.712) to 0.690 (range, 0.522 to 0.750) and from 0.291 (range, 0.219 to 0.522) to 0.412 (range, 0.264 to 0.598) after providing the hippocampus contouring feedback. In the second step, with providing additional plan priority and extended dose constraints to the target volumes and normal structures, we observed the improved compliance of the treatment plans to the planning protocol.
Conclusion
The dummy run studies demonstrated the notable inter-institutional variability in delineating the hippocampus and treatment plan generation, which could be decreased through feedback from the trial center.

Citations

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Radiotherapy trial quality assurance processes: a systematic review
Chloe Brooks, Elizabeth Miles, Peter J Hoskin
The Lancet Oncology.2024; 25(3): e104. CrossRef
Durvalumab with chemoradiotherapy for limited-stage small-cell lung cancer
Sehhoon Park, Jae Myoung Noh, Yoon-La Choi, Sang Ah Chi, Kyunga Kim, Hyun Ae Jung, Se-Hoon Lee, Jin Seok Ahn, Myung-Ju Ahn, Jong-Mu Sun
European Journal of Cancer.2022; 169: 42. CrossRef
Region-Specific Effects of Fractionated Low-Dose Versus Single-Dose Radiation on Hippocampal Neurogenesis and Neuroinflammation
Zoé Schmal, Claudia E. Rübe
Cancers.2022; 14(22): 5477. CrossRef
Non–coplanar whole brain radiotherapy is an effective modality for parotid sparing
Jaehyeon Park, Jae Won Park, Ji Woon Yea
Yeungnam University Journal of Medicine.2019; 36(1): 36. CrossRef

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Salvage Concurrent Chemo-radiation Therapy for Loco-regional Recurrence Following Curative Surgery of Non-small Cell Lung Cancer: Kyung Hwa Lee, Yong Chan Ahn, Hongryull Pyo, Jae Myoung Noh, Seung Gyu Park, Tae Gyu Kim, Eonju Lee, Heerim Nam, Hyebin Lee, Jong-Mu Sun, Jin Seok Ahn, Myung-Ju Ahn, Keunchil Park; Cancer Res Treat. 2019;51(2):769-776. Published online September 11, 2018; DOI: https://doi.org/10.4143/crt.2018.366

Abstract PDF PubReader ePub

Purpose
This study is to report clinical outcomes of salvage concurrent chemo-radiation therapy (CCRT) in treating patients with loco-regional recurrence (LRR) following initial complete resection of non-small cell lung cancer.
Materials and Methods
Between February 2004 and December 2016, 127 patients underwent salvage CCRT for LRR. The median radiation therapy (RT) dose was 66 Gy and clinical target volume was to cover recurrent lesion with margin without elective inclusion of regional lymphatics. Majority of patients (94.5%) received weekly platinum-based doublet chemotherapy during RT course.
Results
The median follow-up time from the start of CCRT was 25 months. The median survival duration was 49 months, and overall survival (OS) rates at 2 and 5 years were 72.9% and 43.9%. The 2- and 5-year rates of in-field failure-free survival, distant metastasis free survival, and progression free survival were 82.4% and 73.8%, 50.4% and 39.9%, and 34.6% and 22.3%, respectively. Grade ≥ 3 radiation-related esophagitis and pneumonitis occurred in 14 (11.0%) and six patients (4.7%), respectively. On both univariate and multivariate analysis, higher biologically equivalent dose (BED10) (≥ 79.2 Gy10 vs. < 79.2 Gy10; hazard ratio [HR], 0.431), smaller CTV (≤ 80 cm3 vs. > 80 cm3; HR, 0.403), and longer disease-free interval (> 1 year vs. ≤ 1 year; HR, 0.489) were significantly favorable factors for OS.
Conclusion
The current study has demonstrated that high dose salvage CCRT focused to the involved lesion only was highly effective and safe. In particular, higher BED₁₀, smaller CTV, and longer disease-free interval were favorable factors for improved survival.

Citations

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Impact of lymphadenectomy extent on immunotherapy efficacy in postresectional recurred non-small cell lung cancer: a multi-institutional retrospective cohort study
Hongsheng Deng, Juan Zhou, Hualin Chen, Xiuyu Cai, Ran Zhong, Feng Li, Bo Cheng, Caichen Li, Qingzhu Jia, Caicun Zhou, René H. Petersen, Gaetano Rocco, Alex Brunelli, Calvin S.H. Ng, Thomas A. D’Amico, Chunxia Su, Jianxing He, Wenhua Liang, Bo Zhu
International Journal of Surgery.2024; 110(1): 238. CrossRef
Prognosis of non‐small cell lung cancer with postoperative regional lymph node recurrence
Yoichi Ohtaki, Toshiteru Nagashima, Naoko Okano, Nobuteru Kubo, Takeru Ohtaka, Noriaki Sunaga, Reiko Sakurai, Yosuke Miura, Seshiru Nakazawa, Natsuko Kawatani, Tomohiro Yazawa, Ryohei Yoshikawa, Eiji Narusawa, Ken Shirabe
Thoracic Cancer.2024; 15(11): 859. CrossRef
Durvalumab after chemoradiotherapy for locoregional recurrence of completely resected non–small‐cell lung cancer (NEJ056)
Megumi Furuta, Hidehito Horinouchi, Isao Yokota, Teppei Yamaguchi, Shoichi Itoh, Takafumi Fukui, Akira Iwashima, Jun Sugisaka, Yu Miura, Hisashi Tanaka, Taichi Miyawaki, Hiroshi Yokouchi, Keita Miura, Ryota Saito, Go Saito, Tatsuhiko Kamoshida, Yusuke Uch
Cancer Science.2024; 115(11): 3705. CrossRef
Treatment patterns and survival of patients with locoregional recurrence in early-stage NSCLC: a literature review of real-world evidence
Kathleen Bowes, Nick Jovanoski, Audrey E. Brown, Danilo Di Maio, Rossella Belleli, Shkun Chadda, Seye Abogunrin
Medical Oncology.2022;[Epub] CrossRef
Salvage proton beam therapy for locoregional recurrence of non-small cell lung cancer
Hyunju Shin, Jae Myoung Noh, Hongryull Pyo, Yong Chan Ahn, Dongryul Oh
Radiation Oncology Journal.2021; 39(1): 24. CrossRef
Hypo-fractionated radiotherapy with concurrent chemotherapy for locoregional recurrence of non-small cell lung cancer after complete resection: A prospective, single-arm, phase II study (GASTO-1017)
NaiBin Chen, QiWen Li, SiYu Wang, Mai Xiong, YiFeng Luo, Bin Wang, Li Chen, MaoSheng Lin, XiaoBo Jiang, JianLan Fang, SuPing Guo, JinYu Guo, Nan Hu, XinLei Ai, DaQuan Wang, Chu Chu, FangJie Liu, Hao Long, JunYe Wang, Bo Qiu, Hui Liu
Lung Cancer.2021; 156: 82. CrossRef
Salvage radiation therapy for postoperative locoregionally recurrent non-small cell lung cancer: a single-center experience
Yoon Young Jo, Su Ssan Kim, Si Yeol Song, Eun Kyung Choi
Radiation Oncology Journal.2021; 39(3): 210. CrossRef
Propensity score adjusted analysis of patients with isolated locoregional recurrence versus de novo locally advanced NSCLC treated with definitive therapy
Cole Friedes, Nicholas Mai, Wei Fu, Chen Hu, Peijin Han, Kristen A. Marrone, K. Ranh Voong, Russell K. Hales
Lung Cancer.2020; 145: 119. CrossRef

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Feasibility of Selective Neck Irradiation with Lower Elective Radiation Dose in Treating Nasopharynx Cancer Patients: Won Kyung Cho, Dongryul Oh, Eonju Lee, Tae Gyu Kim, Hyebin Lee, Heerim Nam, Jae Myoung Noh, Yong Chan Ahn; Cancer Res Treat. 2019;51(2):603-610. Published online July 18, 2018; DOI: https://doi.org/10.4143/crt.2018.240

Abstract PDF PubReader ePub

Purpose
This study aimed to report the clinical outcomes following selective neck irradiation (SNI) with lower elective radiation therapy (RT) dose in treating nasopharyngeal cancer (NPC) patients.
Materials and Methods
A total of 347 NPC patients received definitive RT according to our SNI policy and were retrospectively analyzed. The clinical target volumes (CTVs) were subdivided into CTV at high risk (CTV-HR) and CTV at low risk (CTV-LR). The typical doses to gross tumor volume (GTV), CTV-HR, and CTV-LR were 68.4-70.0 Gy, 54.0-60.0 Gy, and 36.0 Gy.
Results
With the median follow-up of 68.1 months (range, 2.3 to 197.1 months), the 5-year rates of loco-regional control and progression-free survival in all the patients were 85.0% and 70.8%, respectively. Thirty patients developed regional failure and the regional control rates at 3 and 5 years were 92.6% and 91.4%, respectively. The sites of regional failure in relation to the target volume were exclusively inside GTV/CTV-HR in 20, inside and outside GTV/CTVHR in three, and exclusively outside GTV/CTV-HR in seven, which were 5.7%, 0.9%, and 2.0% of total patients, respectively.
Conclusion
The clinical outcomes by the current SNI policy were feasible and comparable to those following classic elective nodal irradiation policy.

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EGFR Mutation Is Associated with Short Progression-Free Survival in Patients with Stage III Non-squamous Cell Lung Cancer Treated with Concurrent Chemoradiotherapy: Song Ee Park, Jae Myoung Noh, You Jin Kim, Han Sang Lee, Jang Ho Cho, Sung Won Lim, Yong Chan Ahn, Hongryull Pyo, Yoon-La Choi, Joungho Han, Jong-Mu Sun, Se Hoon Lee, Jin Seok Ahn, Keunchil Park, Myung-Ju Ahn; Cancer Res Treat. 2019;51(2):493-501. Published online June 18, 2018; DOI: https://doi.org/10.4143/crt.2018.125

Abstract PDF PubReader ePub

Purpose
This study was conducted to evaluate the relationship between epidermal growth factor receptor (EGFR) mutation and clinical outcomes in patients with stage III non-squamous cell lung cancer treated with definitive concurrent chemoradiotherapy (CCRT).
Materials and Methods
From January 2008 to December 2013, the medical records of 197 patients with stage III non- squamous non-small cell lung cancer treated with definitive CCRT were analyzed to determine progression-free survival (PFS) and overall survival (OS) according to EGFR mutation status.
Results
Among 197 eligible patients, 81 patients were EGFR wild type, 36 patients had an EGFR mutation (exon 19 Del, n=18; L858R, n=9, uncommon [G719X, L868, T790M], n=9), and 80 patients had unknown EGFR status. The median age was 59 years (range, 28 to 80 years) and 136 patients (69.0%) were male. The median follow-up duration was 66.5 months (range, 1.9 to 114.5 months). One hundred sixty-four patients (83.2%) experienced disease progression. Median PFS was 8.9 months for the EGFR mutation group, 11.8 months for EGFR wild type, and 10.5 months for the unknown EGFR group (p=0.013 and p=0.042, respectively). The most common site of metastasis in the EGFR mutant group was the brain. However, there was no significant difference in OS among the three groups (34.6 months for EGFR mutant group vs. 31.9 months for EGFR wild type vs. 22.6 months for EGFR unknown group; p=0.792 and p=0.284). A total of 29 patients (80.6%) with EGFR mutation were treated with EGFR tyrosine kinase inhibitor (gefitinib, n=24; erlotinib, n=3; afatinib, n=2) upon progression.
Conclusion
EGFR mutation is associatedwith short PFS and the brain is the most common site of distant metastasis in patients with stage III non- squamous cell lung cancer treated with CCRT.

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The Effect of Hospital Case Volume on Clinical Outcomes in Patients with Nasopharyngeal Carcinoma: A Multi-institutional Retrospective Analysis (KROG-1106): Boram Ha, Kwan Ho Cho, Sung Ho Moon, Chang-Geol Lee, Ki Chang Keum, Yeon-Sil Kim, Hong-Gyun Wu, Jin Ho Kim, Yong Chan Ahn, Dongryul Oh, Jae Myoung Noh, Jong Hoon Lee, Sung Hwan Kim, Won Taek Kim, Young-Taek Oh, Min Kyu Kang, Jin Hee Kim, Ji-Yoon Kim, Moon-June Cho, Chul Seoung Kay, Jin Hwa Choi; Cancer Res Treat. 2019;51(1):12-23. Published online February 5, 2018; DOI: https://doi.org/10.4143/crt.2017.273

Abstract PDF Supplementary Material PubReader ePub

Purpose
The purpose of this study was to investigate the effect of hospital case volume on clinical outcomes in patients with nasopharyngeal carcinoma (NPC).
Materials and Methods
Data on 1,073 patients with cT1-4N0-3M0 NPC were collected from a multi-institutional retrospective database (KROG 11-06). All patients received definitive radiotherapy (RT) either with three-dimensional-conformal RT (3D-CRT) (n=576) or intensity-modulated RT (IMRT) (n=497). The patients were divided into two groups treated at high volume institution (HVI) (n=750) and low volume institution (LVI) (n=323), defined as patient volume ≥ 10 (median, 13; range, 10 to 18) and < 10 patients per year (median, 3; range, 2 to 6), respectively. Endpoints were overall survival (OS) and loco-regional progression-free survival (LRPFS).
Results
At a median follow-up of 56.7 months, the outcomes were significantly better in those treated at HVI than at LVI. For the 614 patients of propensity score-matched cohort, 5-year OS and LRPFS were consistently higher in the HVI group than in the LVI group (OS: 78.4% vs. 62.7%, p < 0.001; LRPFS: 86.2% vs. 65.8%, p < 0.001, respectively). According to RT modality, significant difference in 5-year OS was observed in patients receiving 3D-CRT (78.7% for HVI vs. 58.9% for LVI, p < 0.001) and not in those receiving IMRT (77.3% for HVI vs. 75.5% for LVI, p=0.170).
Conclusion
A significant relationship was observed between HVI and LVI for the clinical outcomes of patients with NPC. However, the difference in outcome becomes insignificant in the IMRT era, probably due to the standardization of practice by education.

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Hospital volume and physician volume in association with survival in patients with nasopharyngeal cancer after radiation therapy
Tzu-Yu Lai, Chiu-Mei Yeh, Yu-Wen Hu, Chia-Jen Liu
Radiotherapy and Oncology.2020; 151: 190. CrossRef

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Radiation Therapy Alone in cT1-3N0 Non-small Cell Lung Cancer Patients Who Are Unfit for Surgical Resection or Stereotactic Radiation Therapy: Comparison of Risk-Adaptive Dose Schedules: Won Kyung Cho, Jae Myoung Noh, Yong Chan Ahn, Dongryul Oh, Hongryull Pyo; Cancer Res Treat. 2016;48(4):1187-1195. Published online March 9, 2016; DOI: https://doi.org/10.4143/crt.2015.391

Abstract PDF PubReader ePub

Purpose
High dose definitive radiation therapy (RT) alone is recommended to patients with cT1-3N0 non-small cell lung cancer, who are unfit for surgery or stereotactic RT. This study was conducted to evaluate the clinical outcomes and cost-effectiveness following RT alone using two different modest hypofractionation dose schemes. Materials and Methods Between 2001 and 2014, 124 patients underwent RT alone. From 2001 till 2010, 60 Gy in 20 fractions was delivered to 79 patients (group 1). Since 2011, 60 Gy in 20 fractions (group 2, 20 patients), and 60 Gy in 15 fractions (group 3, 25 patients) were selectively chosen depending on estimated risk of esophagitis.
Results
At follow-up of 16.7 months, 2-year rates of local control, progression-free survival, and overall survival were 62.6%, 39.1%, and 59.1%, respectively. Overall survival was significantly better in group 3 (p=0.002). In multivariate analyses, cT3 was the most powerful adverse factor affecting clinical outcomes. Incidence and severity of radiation pneumonitis were not different among groups, while no patients developed grade 2 esophagitis in group 3 (p=0.003). Under current Korean Health Insurance Policy, RT cost per person was 22.5% less in group 3 compared with others. Conclusion The current study demonstrated that 60 Gy in 15 fractions instead of 60 Gy in 20 fractions resulted in comparable clinical outcomes with excellent safety, direct cost saving, and improved convenience to the patients with tumors located at ≥ 1.5 cm from the esophagus.

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V. Bourbonne, A. Lévy, J. Khalifa, D. Antoni, E. Blais, J. Darréon, C. Le Péchoux, D. Lerouge, P. Giraud, A. Marguerit, N. Pourel, F.-G. Riet, S. Thureau
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Prospective study investigating hypofractionated proton beam therapy in patients with inoperable early stage non-small cell lung cancer
Kyungmi Yang, Jae Myoung Noh, Hye Yun Park, Hongseok Yoo, Sun Hye Shin, Hongryull Pyo
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Stereotactic Body Radiation Therapy (SBRT) for Non-Small Cell Lung Cancer (NSCLC) Therapy
Zixuan Lyu, Chiming Wei
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Accelerated Hypofractionated Radiotherapy for Centrally Located Lung Tumours Not Suitable for Stereotactic Body Radiotherapy or Chemoradiotherapy
K.L. Zeng, I. Poon, Y. Ung, M. Tsao, L. Zhang, A. Cumal, A.V. Louie, P. Cheung
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Monica-Emilia Chirilă, Ivica Ratosa, Gustavo Nader Marta, Philip Poortmans
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C. Faivre-Finn, J.D. Fenwick, K.N. Franks, S. Harrow, M.Q.F. Hatton, C. Hiley, J.J. McAleese, F. McDonald, J. O'Hare, C. Peedell, T. Pope, C. Powell, R. Rulach, E. Toy
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Zhongxing Liao, Eleonor Rivin del Campo, Ahmed Salem, Qingsong Pang, Hui Liu, Jose Luis Lopez Guerra
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Radiation dose intensity and local tumour control of non-small cell lung cancer: A radiobiological modelling perspective
M Alaswad, C Kleefeld, M Foley
Journal of Physics: Conference Series.2019; 1248(1): 012071. CrossRef

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The Role of Neoadjuvant Chemotherapy in the Treatment of Nasopharyngeal Carcinoma: A Multi-institutional Retrospective Study (KROG 11-06) Using Propensity Score Matching Analysis: Jin Ho Song, Hong-Gyun Wu, Bhum Suk Keam, Jeong Hun Hah, Yong Chan Ahn, Dongryul Oh, Jae Myoung Noh, Hyo Jung Park, Chang Geol Lee, Ki Chang Keum, Jihye Cha, Kwan Ho Cho, Sung Ho Moon, Ji-Yoon Kim, Woong-Ki Chung, Young Taek Oh, Won Taek Kim, Moon-June Cho, Chul Seung Kay, Yeon-Sil Kim; Cancer Res Treat. 2016;48(3):917-927. Published online December 28, 2015; DOI: https://doi.org/10.4143/crt.2015.265

Abstract PDF PubReader ePub

Purpose
We compared the treatment results and toxicity in nasopharyngeal carcinoma (NPC) patients treated with concurrent chemotherapy (CCRT) alone (the CRT arm) or neoadjuvant chemotherapy followed by CCRT (the NCT arm). Materials and Methods A multi-institutional retrospective study was conducted to review NPC patterns of care and treatment outcome. Data of 568 NPC patients treated by CCRT alone or by neoadjuvant chemotherapy followed by CCRT were collected from 15 institutions. Patients in both treatment arms were matched using the propensity score matching method, and the clinical outcomes were analyzed.
Results
After matching, 300 patients (150 patients in each group) were selected for analysis. Higher 5-year locoregional failure-free survival was observed in the CRT arm (85% vs. 72%, p=0.014). No significant differences in distant failure-free survival (DFFS), disease-free survival (DFS), and overall survival were observed between groups. In subgroup analysis, the NCT arm showed superior DFFS and DFS in stage IV patients younger than 60 years. No significant difference in compliance and toxicity was observed between groups, except the radiation therapy duration was slightly shorter in the CRT arm (50.0 days vs. 53.9 days, p=0.018). Conclusion This study did not show the superiority of NCT followed by CCRT over CCRT alone. Because NCT could increase the risk of locoregional recurrences, it can only be considered in selected young patients with advanced stage IV disease. The role of NCT remains to be defined and should not be viewed as the standard of care.

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Age is a significant biomarker for the selection of neoadjuvant chemotherapy plus radiotherapy versus concurrent chemoradiotherapy in patients with advanced nasopharyngeal carcinoma
Yihong Lin, Xiongbin Yu, Linbin Lu, Hong Chen, Junxian Wu, Yaying Chen, Qin Lin, Xuewen Wang, Xi Chen, Xiong Chen
Cancer Biomarkers.2023; 37(1): 1. CrossRef
Effect of Induction Chemotherapy in Nasopharyngeal Carcinoma: An Updated Meta-Analysis
Shan-Shan Yang, Jian-Gui Guo, Jia-Ni Liu, Zhi-Qiao Liu, En-Ni Chen, Chun-Yan Chen, Pu-Yun OuYang, Fei Han, Fang-Yun Xie
Frontiers in Oncology.2021;[Epub] CrossRef
Concurrent chemoradiotherapy with additional chemotherapy for nasopharyngeal carcinoma: A pooled analysis of propensity score‐matching studies
Minmin Li, Bin Zhang, Qiuying Chen, Lu Zhang, Xiaokai Mo, Zhuozhi Chen, Zhe Jin, Luyan Chen, Jingjing You, Shuixing Zhang
Head & Neck.2021; 43(6): 1912. CrossRef
Longitudinal Assessment of Intravoxel Incoherent Motion Diffusion Weighted Imaging in Evaluating the Radio-sensitivity of Nasopharyngeal Carcinoma Treated with Intensity-Modulated Radiation Therapy
Youping Xiao, Ying Chen, Yunbin Chen, Zhuangzhen He, Yiqi Yao, Jianji Pan
Cancer Research and Treatment.2019; 51(1): 345. CrossRef
Less is more: role of additional chemotherapy to concurrent chemoradiotherapy in locoregionally advanced nasopharyngeal cancer management
Yong Chan Ahn
Radiation Oncology Journal.2019; 37(2): 67. CrossRef
A Pairwise Meta-Analysis of Induction Chemotherapy in Nasopharyngeal Carcinoma
Pu-Yun OuYang, Xiao-Min Zhang, Xing-Sheng Qiu, Zhi-Qiao Liu, Lixia Lu, Yuan-Hong Gao, Fang-Yun Xie
The Oncologist.2019; 24(4): 505. CrossRef
Induction chemotherapy for locally advanced nasopharyngeal carcinoma treated with concurrent chemoradiation: A systematic review and meta-analysis
Teng Hwee Tan, Yu Yang Soon, Timothy Cheo, Francis Ho, Lea Choung Wong, Jeremy Tey, Ivan W.K. Tham
Radiotherapy and Oncology.2018; 129(1): 10. CrossRef
Neoadjuvant chemotherapy followed by concurrent chemoradiotherapy versus concurrent chemoradiotherapy followed by adjuvant chemotherapy in locally advanced nasopharyngeal carcinoma
Jiraporn Setakornnukul, Kullathorn Thephamongkhol
BMC Cancer.2018;[Epub] CrossRef
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N. Toumi, W. Ben Kridis, W. Mnejja, R. Bouzguenda, A. Khanfir, A. Ghorbel, J. Daoud, M. Frikha
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Joel Yarney, Naa A. Aryeetey, Alice Mensah, Emmanuel D. Kitcher, Verna Vanderpuye, Charles Aidoo, Kenneth Baidoo
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Neoadjuvant chemotherapy followed by concurrent chemoradiotherapy versus concurrent chemoradiotherapy alone in nasopharyngeal carcinoma patients with cervical nodal necrosis
Mei Lan, Chunyan Chen, Ying Huang, Li Tian, Zhijun Duan, Fei Han, Junfang Liao, Meiling Deng, Terence T. Sio, Anussara Prayongrat, Lie Zheng, Shaoxiong Wu, Taixiang Lu
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A retrospective paired study: efficacy and toxicity of nimotuzumab versus cisplatin concurrent with radiotherapy in nasopharyngeal carcinoma
H. M. Li, P. Li, Y. J. Qian, X. Wu, L. Xie, F. Wang, H. Zhang, L. Liu
BMC Cancer.2016;[Epub] CrossRef

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Tumor Volume Reduction Rate during Adaptive Radiation Therapy as a Prognosticator for Nasopharyngeal Cancer: Hyebin Lee, Yong Chan Ahn, Dongryul Oh, Heerim Nam, Jae Myoung Noh, Su Yeon Park; Cancer Res Treat. 2016;48(2):537-545. Published online July 14, 2015; DOI: https://doi.org/10.4143/crt.2015.081

Abstract PDF PubReader ePub

Purpose
The purpose of this study is to evaluate the prognostic significance of the tumor volume reduction rate (TVRR) measured during adaptive definitive radiation therapy (RT) for nasopharyngeal cancer (NPC).
Materials and Methods
We reviewed the RT records of 159 NPC patients treated with definitive RT with or without concurrent chemotherapy between January 2006 and February 2013. Adaptive re-planning was performed in all patients at the third week of RT. The pre- and mid-RT gross tumor volumes (GTVs) of the primary tumor and the metastatic lymph nodes were measured and analyzed for prognostic implications.
Results
After a median follow-up period of 41.5 months (range, 11.2 to 91.8 months) for survivors, there were 43 treatment failures. The overall survival and progression-free survival (PFS) rates at 5 years were 89.6% and 69.7%, respectively. The mean pre-RT GTV, mid-RT GTV, and TVRR were 45.9 cm3 (range, 1.5 to 185.3 cm3), 26.7 cm3 (1.0 to 113.8 cm3), and –41.9% (range, –87% to 78%), respectively. Patients without recurrence had higher TVRR than those with recurrence (44.3% in the no recurrence group vs. 34.0% in the recurrence group, p=0.004), and those with TVRR > 35% achieved a significantly higher rate of PFS at 5 years (79.2% in TVRR > 35% vs. 53.2% in TVRR ≤ 35%; p < 0.001). In multivariate analysis, TVRR was a significant factor affecting PFS (hazard ratio, 2.877; 95% confidence interval, 1.555 to 5.326; p=0.001).
Conclusion
TVRR proved to be a significant prognostic factor in NPC patients treated with definitive RT, and could be used as a potential indicator for early therapeutic modification during the RT course.

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Sandra Nuyts, Heleen Bollen, Avrahram Eisbruch, Primoz Strojan, William M. Mendenhall, Sweet Ping Ng, Alfio Ferlito
Cancer Medicine.2024;[Epub] CrossRef
Effects of concurrent chemoradiotherapy with or without Endostar on the regression of retropharyngeal lymph node and prognosis of patients with locally advanced nasopharyngeal carcinoma: a retrospective study
Jun-Mei Song, Ning Mo, Yu-Qing Lv, Lu-Lu Huang, Ya-Jing Wen, Ting Liu, Zhi-Ru Li, Ren-Sheng Wang, Ting-Ting Zhang
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Current state, challenges, and future perspective of adaptive radiotherapy: A narrative review of nasopharyngeal carcinoma
Xiate Zhou, Tianchi Shao, Haijian Jia, Liqiao Hou, Xingni Tang, Changhui Yu, Chao Zhou, Suna Zhou, Haihua Yang
Oral Oncology.2024; 158: 107008. CrossRef
Evaluating psychological anxiety in patients receiving radiation therapy using smartwatch
Sangwoon Jeong, Chanil Jeon, Dongyeon Lee, Won Park, Hongryull Pyo, Youngyih Han
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Dosimetric Comparison and Selection Criteria of Intensity-Modulated Proton Therapy and Intensity-Modulated Radiation Therapy for Adaptive Re-Plan in T3-4 Nasopharynx Cancer Patients
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Yan Li, Jian Zang, Jingyi Liu, Shanquan Luo, Jianhua Wang, Bingxin Hou, Lina Zhao, Mei Shi
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Howard E. Morgan, David J. Sher
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Huiyun Yang, Yuanyuan Liu, Rongjun Zhang, Yaomin Ye, Qiuqiu Chen, Qinghua Qin, Liying Huang, Xi Li, Rui Cai, Huaying Tang, Wei Jiang
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Yuan-Yuan Zeng, Zhong-Zheng Xiang, Tao He, Fang Liu, Bian-Fei Shao, Ruo-Nan Yan, Jia-Chun Ma, Xi-Ran Wang, Lei Liu
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Sik-Kwan Chan, Sum-Yin Chan, Horace Cheuk-Wai Choi, Chi-Chung Tong, Ka-On Lam, Dora Lai-Wan Kwong, Varut Vardhanabhuti, To-Wai Leung, Mai-Yee Luk, Anne Wing-Mui Lee, Victor Ho-Fun Lee
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Metin Figen, Didem Çolpan Öksüz, Evrim Duman, Robin Prestwich, Karen Dyker, Kate Cardale, Satiavani Ramasamy, Patrick Murray, Mehmet Şen
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Zhong‐zheng Xiang, Fang Liu, Ruo‐nan Yan, Yuan‐yuan Zeng, Tao He, Zhen Zeng, Zhi‐hui Zhu, Long Bai, Jia‐chun Ma, Lei Liu
Head & Neck.2019; 41(6): 1863. CrossRef
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Yong Chan Ahn
Radiation Oncology Journal.2019; 37(2): 67. CrossRef
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Seung Gyu Park, Yong Chan Ahn, Dongryul Oh, Jae Myoung Noh, Sang Gyu Ju, Dongyeol Kwon, Kwanghyun Jo, Kwangzoo Chung, Eunah Chung, Woojin Lee, Seyjoon Park
Cancer Science.2019; 110(9): 2867. CrossRef
Pretreatment Prediction of Adaptive Radiation Therapy Eligibility Using MRI-Based Radiomics for Advanced Nasopharyngeal Carcinoma Patients
Ting-ting Yu, Sai-kit Lam, Lok-hang To, Ka-yan Tse, Nong-yi Cheng, Yeuk-nam Fan, Cheuk-lai Lo, Ka-wa Or, Man-lok Chan, Ka-ching Hui, Fong-chi Chan, Wai-ming Hui, Lo-kin Ngai, Francis Kar-ho Lee, Kwok-hung Au, Celia Wai-yi Yip, Yong Zhang, Jing Cai
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Which nasopharyngeal cancer patients need adaptive radiotherapy?
Yu-Chang Hu, Kuo-Wang Tsai, Ching-Chih Lee, Nan-Jing Peng, Ju-Chun Chien, Hsin-Hui Tseng, Po-Chun Chen, Jin-Ching Lin, Wen-Shan Liu
BMC Cancer.2018;[Epub] CrossRef

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Carotid-Sparing TomoHelical 3-Dimensional Conformal Radiotherapy for Early Glottic Cancer: Chae-Seon Hong, Dongryul Oh, Sang Gyu Ju, Yong Chan Ahn, Jae Myoung Noh, Kwangzoo Chung, Jin Sung Kim, Tae-Suk Suh; Cancer Res Treat. 2016;48(1):63-70. Published online March 6, 2015; DOI: https://doi.org/10.4143/crt.2014.265

Abstract PDF PubReader ePub

Purpose
The purpose of this study was to investigate the dosimetric benefits and treatment efficiency of carotid-sparing TomoHelical 3-dimensional conformal radiotherapy (TH-3DCRT) for early glottic cancer. Materials and Methods Ten early-stage (T1N0M0) glottic squamous cell carcinoma patients were simulated, based on computed tomography scans. Two-field 3DCRT (2F-3DCRT), 3-field intensity-modulated radiation therapy (3F-IMRT), TomoHelical-IMRT (TH-IMRT), and TH-3DCRT plans were generated with a 67.5-Gy total prescription dose to the planning target volume (PTV) for each patient. In order to evaluate the plan quality, dosimetric characteristics were compared in terms of conformity index (CI) and homogeneity index (HI) for PTV, dose to the carotid arteries, and maximum dose to the spinal cord. Treatment planning and delivery times were compared to evaluate treatment efficiency.
Results
The median CI was substantially better for the 3F-IMRT (0.65), TH-IMRT (0.64), and TH-3DCRT (0.63) plans, compared to the 2F-3DCRT plan (0.32). PTV HI was slightly better for TH-3DCRT and TH-IMRT (1.05) compared to 2F-3DCRT (1.06) and 3F-IMRT (1.09). TH-3DCRT, 3F-IMRT, and TH-IMRT showed an excellent carotid sparing capability compared to 2F-3DCRT (p < 0.05). For all plans, the maximum dose to the spinal cord was < 45 Gy. The median treatment planning times for 2F-3DCRT (5.85 minutes) and TH-3DCRT (7.10 minutes) were much lower than those for 3F-IMRT (45.48 minutes) and TH-IMRT (35.30 minutes). The delivery times for 2F-3DCRT (2.06 minutes) and 3F-IMRT (2.48 minutes) were slightly lower than those for TH-IMRT (2.90 minutes) and TH-3DCRT (2.86 minutes). Conclusion TH-3DCRT showed excellent carotid-sparing capability, while offering high efficiency and maintaining good PTV coverage.

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Carotid sparing intensity modulated radiotherapy on early glottic cancer: preliminary study
Hoon Sik Choi, Bae Kwon Jeong, Hojin Jeong, Jin Ho Song, Jin Pyeong Kim, Jung Je Park, Seung Hoon Woo, Ki Mun Kang
Radiation Oncology Journal.2016; 34(1): 26. CrossRef

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Definitive Bimodality Concurrent Chemoradiotherapy in Patients with Inoperable N2-positive Stage IIIA Non-small Cell Lung Cancer: Jae Myoung Noh, Yong Chan Ahn, Hyebin Lee, Hongryull Pyo, BoKyong Kim, Dongryul Oh, Hyojung Park, Eonju Lee, Keunchil Park, Jin Seok Ahn, Myung-Ju Ahn, Jong-Mu Sun; Cancer Res Treat. 2015;47(4):645-652. Published online February 12, 2015; DOI: https://doi.org/10.4143/crt.2014.144

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Purpose
This study was conducted to evaluate the treatment outcomes following definitive bimodality concurrent chemoradiotherapy (CCRT) in patients with inoperable N2-positive stage IIIA (N2- IIIA) non-small cell lung cancer (NSCLC). Materials and Methods From May 1997 to December 2012, 65 out of 633 patients with N2-IIIA NSCLC received bimodality therapy. The treatment modality was selected during/after neoadjuvant CCRT in 21 patients or primarily at diagnosis in 44 through a multidisciplinary consensus meeting. The median age was 65 years (range, 36 to 76 years). Sixty patients (92.3%) had clinically evident N2 disease, while 22 (33.8%) had multi-station N2 involvement. The median radiation therapy dose was 66 Gy in 33 fractions, while the dose was elevated to 72 Gy in 13 patients who had a treatment break due to delayed decision regarding resectability. The most frequent chemotherapy regimen was weekly paclitaxel or docetaxel plus cisplatin or carboplatin (54, 83.1%).
Results
During the median follow-up of 18.8 months (range, 1.6 to 173.1 months), 34 patients (52.3%) experienced disease progression, with distant metastasis being the most common first treatment failure pattern (23, 34.8%). The median and 2-year rates of progression-free survival were 18.8 months and 45.9%, respectively. The median and 2-year rates of overall survival were 28.6 months and 50.1%, respectively. Conclusion Definitive bimodality therapy in patients with N2-IIIA NSCLC demonstrated favorable outcomes, while trimodality therapy could be considered for candidates for less than pneumonectomy.

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Junghee Lee, Yun Soo Hong, Jin Lee, Genehee Lee, Danbee Kang, Jiyoun Park, Yeong Jeong Jeon, Seong Yong Park, Jong Ho Cho, Yong Soo Choi, Jhingook Kim, Young Mog Shim, Eliseo Guallar, Juhee Cho, Hong Kwan Kim
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Life.2022; 12(2): 292. CrossRef
Salvage proton beam therapy for locoregional recurrence of non-small cell lung cancer
Hyunju Shin, Jae Myoung Noh, Hongryull Pyo, Yong Chan Ahn, Dongryul Oh
Radiation Oncology Journal.2021; 39(1): 24. CrossRef
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Choi Eunsook, Park Sunhee
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Hui You, Yi-Zhong Zhang, Huan-Ling Lai, Dan Li, Yu-Quan Liu, Run-Ze Li, Imran Khan, Wendy Wen-Lun Hsiao, Fu-Gang Duan, Xing-Xing Fan, Xiao-Jun Yao, Ya-Bing Cao, Qi-Biao Wu, Elaine Lai-Han Leung, Mei-Fang Wang
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Liwen Xiong, Rong Li, Jiayuan Sun, Yuqing Lou, Weiyan Zhang, Hao Bai, Huiming Wang, Jie Shen, Bo Jing, Chunlei Shi, Hua Zhong, Aiqin Gu, Liyan Jiang, Jianxing Shi, Wentao Fang, Heng Zhao, Jie Zhang, Junyuan Wang, Junyi Ye, Baohui Han
The Oncologist.2019; 24(2): 157. CrossRef
Recurrence dynamics after trimodality therapy (Neoadjuvant concurrent chemoradiotherapy and surgery) in patients with stage IIIA (N2) lung cancer
Junghee Lee, Hong Kwan Kim, Byung Jo Park, Jong Ho Cho, Yong Soo Choi, Jae Ill Zo, Young Mog Shim, Hongryull Pyo, Yong Chan Ahn, Jin Seok Ahn, Myung-Ju Ahn, Keunchil Park, Jhingook Kim
Lung Cancer.2018; 115: 89. CrossRef

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Effect of Radiation Therapy Techniques on Outcome in N3-positive IIIB Non-small Cell Lung Cancer Treated with Concurrent Chemoradiotherapy: Jae Myoung Noh, Jin Man Kim, Yong Chan Ahn, Hongryull Pyo, BoKyong Kim, Dongryul Oh, Sang Gyu Ju, Jin Sung Kim, Jung Suk Shin, Chae-Seon Hong, Hyojung Park, Eonju Lee; Cancer Res Treat. 2016;48(1):106-114. Published online February 12, 2015; DOI: https://doi.org/10.4143/crt.2014.131

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Purpose
This study was conducted to evaluate clinical outcomes following definitive concurrent chemoradiotherapy (CCRT) for patients with N3-positive stage IIIB (N3-IIIB) non-small cell lung cancer (NSCLC), with a focus on radiation therapy (RT) techniques. Materials and Methods From May 2010 to November 2012, 77 patients with N3-IIIB NSCLC received definitive CCRT (median, 66 Gy). RT techniques were selected individually based on estimated lung toxicity, with 3-dimensional conformal RT (3D-CRT) and intensity-modulated RT (IMRT) delivered to 48 (62.3%) and 29 (37.7%) patients, respectively. Weekly docetaxel/paclitaxel plus cisplatin (67, 87.0%) was the most common concurrent chemotherapy regimen.
Results
The median age and clinical target volume (CTV) were 60 years and 288.0 cm3, respectively. Patients receiving IMRT had greater disease extent in terms of supraclavicular lymph node (SCN) involvement and CTV ≥ 300 cm3. The median follow-up time was 21.7 months. Fortyfive patients (58.4%) experienced disease progression, most frequently distant metastasis (39, 50.6%). In-field locoregional control, progression-free survival (PFS), and overall survival (OS) rates at 2 years were 87.9%, 38.7%, and 75.2%, respectively. Although locoregional control was similar between RT techniques, patients receiving IMRT had worse PFS and OS, and SCN metastases from the lower lobe primary tumor and CTV ≥ 300 cm3were associated with worse OS. The incidence and severity of toxicities did not differ significantly between RT techniques. Conclusion IMRT could lead to similar locoregional control and toxicity, while encompassing a greater disease extent than 3D-CRT. The decision to apply IMRT should be made carefully after considering oncologic outcomes associated with greater disease extent and cost.

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International Journal of Radiation Research.2025; 23(3): 535. CrossRef
Pneumonitis Risk After Chemoradiotherapy With and Without Immunotherapy in Patients With Locally Advanced Non-Small Cell Lung Cancer: A Systematic Review and Meta-Analysis
Chong Han, Jingping Qiu, Lu Bai, Tingting Liu, Jun Chen, He Wang, Jun Dang
International Journal of Radiation Oncology*Biology*Physics.2024; 119(4): 1179. CrossRef
“Mid-P strategy” versus “internal target volume strategy in locally advanced non small cell lung cancer: Clinical results from the randomized non-comparative phase II study Mid-P
Line Claude, Camille Schiffler, Vanina Isnardi, Séverine Metzger, Sophie Darnis, Isabelle Martel-Lafay, Thomas Baudier, Simon Rit, David Sarrut, Myriam Ayadi
Radiotherapy and Oncology.2024; 199: 110435. CrossRef
Comparison of post-chemoradiotherapy pneumonitis between Asian and non-Asian patients with locally advanced non-small cell lung cancer: a systematic review and meta-analysis
Tingting Liu, Sihan Li, Silu Ding, Jingping Qiu, Chengbo Ren, Jun Chen, He Wang, Xiaoling Wang, Guang Li, Zheng He, Jun Dang
eClinicalMedicine.2023; 64: 102246. CrossRef
The effect of radiotherapy and surgery on stage IIIA/B NSCLC patients treated with chemotherapy
Y. Zeng, G. Wang, H. Zheng, Y. Wang, G. Ma, Z. Pang, J. Du
International Journal of Radiation Research.2023; 21(3): 475. CrossRef
Toxicity of Proton Therapy versus Photon Therapy on Salvage Re-Irradiation for Non-Small Cell Lung Cancer
Kyungmi Yang, Yang-Gun Suh, Hyunju Shin, Hongryull Pyo, Sung Ho Moon, Yong Chan Ahn, Dongryul Oh, Eunah Chung, Kwanghyun Jo, Jae Myoung Noh
Life.2022; 12(2): 292. CrossRef
Durvalumab After Chemoradiation for Unresectable Stage III Non-Small Cell Lung Cancer: Inferior Outcomes and Lack of Health Equity in Hispanic Patients Treated With PACIFIC Protocol (LA1-CLICaP)
Luis E. Raez, Oscar Arrieta, Diego F. Chamorro, Pamela Denisse Soberanis-Piña, Luis Corrales, Claudio Martín, Mauricio Cuello, Suraj Samtani, Gonzalo Recondo, Luis Mas, Zyanya Lucia Zatarain-Barrón, Alejandro Ruíz-Patiño, Juan Esteban García-Robledo, Cami
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Sunmin Park, Won Sup Yoon, Mi Hee Jang, Chai Hong Rim
Medicina.2021; 57(3): 301. CrossRef
Salvage proton beam therapy for locoregional recurrence of non-small cell lung cancer
Hyunju Shin, Jae Myoung Noh, Hongryull Pyo, Yong Chan Ahn, Dongryul Oh
Radiation Oncology Journal.2021; 39(1): 24. CrossRef
Comparaison dosimétrique et de la toxicité de la radiothérapie conformationnelle avec modulation d’intensité et de la radiothérapie conformationnelle tridimensionnelle des carcinomes bronchiques non à petites cellules
F. Guillemin, L. Berger, M. Lapeyre, A. Bellière-Calandry
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Hyun Ae Jung, Jae Myoung Noh, Jong-Mu Sun, Se-Hoon Lee, Jin Seok Ahn, Myung-Ju Ahn, Hongryull Pyo, Yong Chan Ahn, Keunchil Park
Lung Cancer.2020; 146: 23. CrossRef
Early blood rise in auto‑antibodies to nuclear and smooth muscle antigens is predictive of prolonged survival and autoimmunity in metastatic‑non‑small cell lung cancer patients treated with PD‑1 immune‑check point blockade by nivolumab
Rocco Giannicola, Graziella D'Arrigo, Cirino Botta, Rita Agostino, Pietro Del Medico, Antonia Falzea, Vito Barbieri, Nicoletta Staropoli, Teresa Del Giudice, Pierpaolo Pastina, Valerio Nardone, Marika Monoriti, Graziella Calabrese, Giovanni
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Medicine.2018; 97(19): e0632. CrossRef
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John Boyle, Brad Ackerson, Lin Gu, Chris R. Kelsey
Advances in Radiation Oncology.2017; 2(1): 6. CrossRef
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Chae-Seon Hong, Sang Gyu Ju, Yong Chan Ahn, Gyu Sang Yoo, Jae Myoung Noh, Dongryul Oh, Kwangzoo Chung, Hongryull Pyo, Kwanghyun Jo
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Pierre Truntzer, Delphine Antoni, Nicola Santelmo, Catherine Schumacher, Pierre-Emmanuel Falcoz, Elisabeth Quoix, Gilbert Massard, Georges Noël
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Annals of the American Thoracic Society.2016; 13(9): 1593. CrossRef

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Potential Role of Adjuvant Radiation Therapy in Cervical Thymic Neoplasm Involving Thyroid Gland or Neck: Jae Myoung Noh, Sang Yun Ha, Yong Chan Ahn, Dongryul Oh, Seung Won Seol, Young Lyun Oh, Joungho Han; Cancer Res Treat. 2015;47(3):436-440. Published online November 17, 2014; DOI: https://doi.org/10.4143/crt.2013.184

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Purpose
The purpose of this study is to assess the clinicopathologic features, treatment outcomes, and role of adjuvant radiation therapy (RT) in cervical thymic neoplasm involving the thyroid gland or neck. Materials and Methods The medical and pathologic records of eight patients with cervical thymic neoplasm were reviewed retrospectively. All patients underwent surgical resection, including thyroidectomy or mass excision. Adjuvant RT was added in five patients with adverse clinicopathologic features. The radiation doses ranged from 54 Gy/27 fractions to 66 Gy/30 fractions delivered to the primary tumor bed and pathologically involved regional lymphatics using a 3-dimensional conformal technique. Results Eight cases of cervical thymic neoplasm included three patients with carcinoma showing thymus-like differentiation (CASTLE) and five with ectopic cervical thymoma. The histologic subtypes of ectopic cervical thymoma patients were World Health Organization (WHO) type B3 thymoma in one, WHO type B1 thymoma in two, WHO type AB thymoma in one, and metaplastic thymoma in one, respectively. The median age was 57 years (range, 40 to 76 years). Five patients received adjuvant RT: three with CASTLE; one with WHO type B3; and one with WHO type AB with local invasiveness. After a median follow-up period of 49 months (range, 11 to 203 months), no recurrence had been observed, regardless of adjuvant RT. Conclusion Adjuvant RT after surgical resection might be worthwhile in patients with CASTLE and ectopic cervical thymoma with WHO type B2-C and/or extraparenchymal extension, as similarly indicated for primary thymic epithelial tumors. A longer follow-up period may be needed in order to validate this strategy.

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Coexistence of intrathyroid thymic carcinoma and papillary thyroid carcinoma: a case report and literature review
Maryam Vajihinejad, Ali Ataei, Mohammad Pashmchi, Ali Aledavoud, Vahid Zand, Mohammad Ali Broomand, Mohammad Mohammadi, Niloofar Zare Reshkuiyeh
Frontiers in Oncology.2024;[Epub] CrossRef
Case report: Thymoid differentiated carcinoma of thyroid: Two cases
Yanjie Zhao, Jiafeng Liu
Frontiers in Surgery.2023;[Epub] CrossRef
Ectopic Cervical Thymoma: An Uncommon Entity
Nikitha Kairanna, Geetha Vasudevan, Veena Karanth, Krishna Sharan
Indian Journal of Otolaryngology and Head & Neck Surgery.2022; 74(S3): 5884. CrossRef
Genomic variation associated with carcinoma showing thymus‐like elements (CASTLE) in thyroid gland
Lin Jiang, Wei‐Hui Zheng, Chao Chen
Laryngoscope Investigative Otolaryngology.2022; 7(3): 894. CrossRef
Thyroid Carcinoma Showing Thymus-like Differentiation (CASTLE): A Case Report
Mihaela Stanciu, Ruxandra Paula Ristea, Mihaela Popescu, Corina Maria Vasile, Florina Ligia Popa
Life.2022; 12(9): 1314. CrossRef
Failure pattern and suggestions for target volume delineation of carcinoma showing thymus-like differentiation treated with intensity-modulated radiotherapy
Fang-Fang Kong, Guang-Sen Pan, Rui-Ping Zhai, Cheng-Run Du, Xia-Yun He, Chun-Ying Shen, Xue-Guan Lu, Tuan-Qi Sun, Yu Wang, Qing-Hai Ji, Chao-Su Hu, Hong-Mei Ying
BMC Cancer.2022;[Epub] CrossRef
Overview of the 2022 WHO Classification of Thyroid Neoplasms
Zubair W. Baloch, Sylvia L. Asa, Justine A. Barletta, Ronald A. Ghossein, C. Christofer Juhlin, Chan Kwon Jung, Virginia A. LiVolsi, Mauro G. Papotti, Manuel Sobrinho-Simões, Giovanni Tallini, Ozgur Mete
Endocrine Pathology.2022; 33(1): 27. CrossRef
Thyroid carcinoma with thymus-like differentiation (CASTLE) tumor: а сase report
A. A. Ilyin, V. V. Polkin, P. A. Isaev, F. E. Sevrukov, N. Yu. Dvinskych, M. I. Ryzhenkova, S. A. Ivanov, A. D. Kaprin
Head and Neck Tumors (HNT).2021; 11(2): 64. CrossRef
Recurrence of carcinoma showing thymus-like differentiation (CASTLE) involving the thyroid gland
N. V. Dang, L. X. Son, N. T. T. Hong, N. T. T. Nhung, N. T. Tung, L. V. Quang
Thyroid Research.2021;[Epub] CrossRef
An extrathyroid CASTLE tumor in the left neck
Lin Jiang, Wei-hui Zheng, Yun Xi, Chao Chen
Oral Oncology.2020; 109: 104656. CrossRef
The ‘CASTLE’ tumour: An extremely rare presentation of a thyroid malignancy. A case report
Diana Mellisa Dualim, Loo Guo Hou, Shahrun Niza Abdullah Suhaimi, Nani Harlina Md Latar, Rohaizak Muhammad, Nordashima Abd Shukor
Annals of Medicine and Surgery.2019;[Epub] CrossRef
Ektopien des Thymus und ektope Thymustumoren
A. Marx, T. Rüdiger, E. Rößner, A. Tzankov, V. T. de Montpréville, R. R. Rieker, P. Ströbel, C.‑A. Weis
Der Pathologe.2018; 39(5): 390. CrossRef
CASTLE Thyroid Tumor: A Case Report and Literature Review
Chris Lominska, Christopher Fleighton Estes, Prakash C. Neupane, Y. Shnayder, Mindi J. TenNapel, Maura F. O’Neil
Frontiers in Oncology.2017;[Epub] CrossRef
Thyroid Carcinoma Showing Thymic-Like Differentiation Causing Fracture of the Trachea
Aikaterini Marini, Meletios Kanakis, Konstantinos Valakis, Nikolaos Laschos, Maria Chorti, Achilleas Lioulias
Case Reports in Medicine.2016; 2016: 1. CrossRef

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Outcome of Local Excision Following Preoperative Chemoradiotherapy for Clinically T2 Distal Rectal Cancer: A Multicenter Retrospective Study (KROG 12-06): Jae Myoung Noh, Won Park, Jae-Sung Kim, Woong Sub Koom, Jin Hee Kim, Doo Ho Choi, Hee Chul Park; Cancer Res Treat. 2014;46(3):243-249. Published online July 15, 2014; DOI: https://doi.org/10.4143/crt.2014.46.3.243

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Purpose
The aim of this study was to examine the clinical implications of a pathologically complete response after neoadjuvant chemoradiotherapy (CRT) followed by local excision for patients with cT2 rectal cancer who refused radical surgery. Materials and Methods Seventeen patients with cT2 primary rectal cancer within 6 cm from the anal verge who received neoadjuvant CRT and local excision because of patient refusal of radical surgery or poor performance status were included. Two patients had clinical involvement of a regional lymph node. Preoperative radiotherapy was delivered to the whole pelvis at a dose of 44 to 50.4 Gy in 22 to 28 fractions. All patients underwent transanal excision and eight patients (47%) received postoperative chemotherapy. Results Ten patients (59%) achieved ypT0. At a median follow-up period of 75 months (range, 22 to 126 months), four (24%) patients developed recurrence (two locoregional and two distant). The 5-year disease-free survival of all patients was 82%, and was higher in patients with ypT0 (90%) than in patients with ypT1-2 (69%, p=0.1643). Decreased disease-free survival was also observed in patients receiving capecitabine compared with 5-fluorouracil (54% vs. 100%, p=0.0298). Conclusion Local excision could be a feasible alternative to radical surgery in patients with ypT0 after neoadjuvant CRT for cT2 distal rectal cancer without further radical surgery.

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Roberto Peltrini, Nicola Imperatore, Maria Michela Di Nuzzo, Gianluca Pellino
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Preoperative concurrent chemoradiotherapy MRI characteristics favouring pathologic complete response in patients with rectal cancer: Usefulness of MR T2‐stage as an ancillary finding for predicting pathologic complete response
Hyeon Jin Lee, Woo‐Suk Chung, Ji hae An, Jung Hoon Kim
Journal of Medical Imaging and Radiation Oncology.2021; 65(2): 166. CrossRef
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Medicine.2020; 99(42): e22746. CrossRef
Does total regression of primary rectal cancer after preoperative chemoradiotherapy represent “no tumor” status?
Seong-A Jeong, In Ja Park, Seung Mo Hong, Jun Woo Bong, Hye Yoon Choi, Ji Hyun Seo, Hyong Eun Kim, Seok-Byung Lim, Chang Sik Yu, Jin Cheon Kim
Annals of Surgical Treatment and Research.2019; 96(2): 78. CrossRef
Neoadjuvant chemoradiation followed by transanal local excision for T2 rectal cancer confers equivalent survival benefit as traditional transabdominal resection
Oliver K. Jawitz, Mohamed A. Adam, Megan C. Turner, Brian F. Gilmore, John Migaly
Surgery.2019; 165(6): 1193. CrossRef
Status for clinically complete remission rectal cancer after concomitant chemo-radiotherapy in Taiwan
Geng-Ping Lin, Kuan-Der Lee, Jeng-Yi Wang, Jinn-Shiun Chen, Chun-Ju Chiang, Chien-Yuh Yeh
Asian Journal of Surgery.2018; 41(3): 203. CrossRef
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Laurence Bernier, Svetlana Balyasnikova, Diana Tait, Gina Brown
Current Colorectal Cancer Reports.2018; 14(2): 37. CrossRef
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Bo Young Oh, Jung Wook Huh, Woo Yong Lee, Yoon Ah Park, Yong Beom Cho, Seong Hyeon Yun, Hee Cheol Kim, Ho-Kyung Chun
Cancer Research and Treatment.2018; 50(3): 634. CrossRef
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Fraser McLean Smith, Abdul Ahad, Rodrigo Oliva Perez, John Marks, Krzysztof Bujko, Richard J. Heald
Diseases of the Colon & Rectum.2017; 60(2): 228. CrossRef
Transanal Minimally Invasive Surgery: Review of Indications and Outcomes from 75 Consecutive Patients
Deborah S. Keller, Reena N. Tahilramani, Juan R. Flores-Gonzalez, Ali Mahmood, Eric M. Haas
Journal of the American College of Surgeons.2016; 222(5): 814. CrossRef
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T. Sprenger, H. Rothe, T. Beissbarth, L.-C. Conradi, A. Kauffels, K. Homayounfar, C. L. Behnes, C. Rödel, T. Liersch, M. Ghadimi
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Sally Hallam, David E. Messenger, Michael G. Thomas
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Young Seob Shin, Yong sik Yoon, Seok-Byung Lim, Chang Sik Yu, Tae Won Kim, Heung Moon Chang, Jin-hong Park, Seung Do Ahn, Sang-Wook Lee, Eun Kyung Choi, Jin Cheon Kim, Jong Hoon Kim
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Sam Atallah, Deborah Keller
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In Ja Park, Jong Lyul Lee, Yong Sik Yoon, Chan Wook Kim, Seok-Byung Lim, Jong Seok Lee, Seong Ho Park, Jin Hong Park, Jong Hoon Kim, Chang Sik Yu, Jin Cheon Kim
Medicine.2015; 94(52): e2377. CrossRef
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Juefeng Wan, Kaitai Liu, Ji Zhu, Guichao Li, Zhen Zhang
Oncotarget.2015; 6(13): 11714. CrossRef
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Jong Hoon Lee, Hong Seok Jang, Jun-Gi Kim, Myung Ah Lee, Dae Yong Kim, Tae Hyun Kim, Jae Hwan Oh, Sung Chan Park, Sun Young Kim, Ji Yeon Baek, Hee Chul Park, Hee Cheol Kim, Taek-Keun Nam, Eui Kyu Chie, Ji-Han Jung, Seong Taek Oh
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