Cancer Research and Treatment

Original Articles

General

Perspectives on Professional Burnout and Occupational Stress among Medical Oncologists: A Cross-sectional Survey by Korean Society for Medical Oncology (KSMO): Yun-Gyoo Lee, Chi Hoon Maeng, Do Yeun Kim, Bong-Seog Kim; Cancer Res Treat. 2020;52(4):1002-1009. Published online July 10, 2020; DOI: https://doi.org/10.4143/crt.2020.190

Purpose
This study aimed to investigate the prevalence and risk factors of burnout and occupational stress among medical oncologists in Korea.
Methods
A survey was conducted of medical oncologists who were members of Korean Society for Medical Oncology (KSMO) using the Korean Occupational Stress Scale, the validated Maslach Burnout Inventory (MBI) and supplemental questions about work and lifestyle factors.
Results
Among 220 active KSMO members, 111 responses were collected. The median age was 42 years (range, 32 to 63 years). Two-thirds of responders worked 6 days per week and half of them worked a total of 60-80 hours per week. Each medical oncologist treated a median of 90-120 patients per week in outpatient clinics and 20-30 patients per week in patient practices. MBI subscales indicated a high level of emotional exhaustion in 74%, a high level of depersonalization in 86%, and a low level of personal accomplishment in 65%: 68% had professional burnout according to high emotional exhaustion and high depersonalization scores. The risk of burnout was higher for medical oncologists aged from 30-39 than 40-49 years, and unmarried than married. Considering personal accomplishment, females had a higher risk of burnout. The median score of occupational stress was 63 (range, 43 to 88). Having night-duty call was the strongest risk factor on more stress. A higher stress score was associated with a higher prevalence of burnout.
Conclusion
Burnout and occupational stress are quite common amongst Korean medical oncologists. Achieving a healthy work-life balance, ensuring balanced workload distribution, and engaging in proper stress relief solutions are necessary.

Citations

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Job stress and burnout affecting the mental health of Korean medical faculty members: constructing causality among latent variables
Ji-Hyun Seo, Hwa-ok Bae
Korean Journal of Medical Education.2024; 36(1): 27. CrossRef
Pilotstudie zu beruflicher Gratifikation und Gesundheit
I. Böckelmann, I. Zavgorodnii, O. Litovchenko, M. Krasnoselskyi, B. Thielmann
Zentralblatt für Arbeitsmedizin, Arbeitsschutz und Ergonomie.2024; 74(3): 118. CrossRef
Associations among the workplace violence, burnout, depressive symptoms, suicidality, and turnover intention in training physicians: a network analysis of nationwide survey
Je-Yeon Yun, Sun Jung Myung, Kyung Sik Kim
Scientific Reports.2023;[Epub] CrossRef
Work-Related Stress, Health Status, and Status of Health Apps Use in Korean Adult Workers
Won Ju Hwang, Minjeong Kim
International Journal of Environmental Research and Public Health.2022; 19(6): 3197. CrossRef

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Lung cancer

Real-World Experience of Nivolumab in Non-small Cell Lung Cancer in Korea: Sun Min Lim, Sang-We Kim, Byoung Chul Cho, Jin Hyung Kang, Myung-Ju Ahn, Dong-Wan Kim, Young-Chul Kim, Jin Soo Lee, Jong-Seok Lee, Sung Yong Lee, Keon Uk Park, Ho Jung An, Eun Kyung Cho, Tae Won Jang, Bong-Seog Kim, Joo-Hang Kim, Sung Sook Lee, Im-II Na, Seung Soo Yoo, Ki Hyeong Lee; Cancer Res Treat. 2020;52(4):1112-1119. Published online May 15, 2020; DOI: https://doi.org/10.4143/crt.2020.245

Abstract PDF Supplementary Material PubReader ePub

Purpose
The introduction of immune checkpoint inhibitors represents a major advance in the treatment of lung cancer, allowing sustained recovery in a significant proportion of patients. Nivolumab is a monoclonal anti–programmed death cell protein 1 antibody licensed for the treatment of locally advanced or metastatic non-small cell lung cancer (NSCLC) after prior chemotherapy. In this study, we describe the demographic and clinical outcomes of patients with advanced NSCLC treated with nivolumab in the Korean expanded access program.
Materials and Methods
Previously treated patients with advanced non-squamous and squamous NSCLC patients received nivolumab at 3 mg/kg every 2 weeks up to 36 months. Efficacy data including investigator-assessed tumor response, progression data, survival, and safety data were collected.
Results
Two hundred ninety-nine patients were treated across 36 Korean centers. The objective response rate and disease control rate were 18% and 49%, respectively; the median progression-free survival was 2.1 months (95% confidence interval [CI], 1.87 to 3.45), and the overall survival (OS) was 13.2 months (95% CI, 10.6 to 18.9). Patients with smoking history and patients who experienced immune-related adverse events showed a prolonged OS. Cox regression analysis identified smoking history, presence of immune-related adverse events as positive factors associated with OS, while liver metastasis was a negative factor associated with OS. The safety profile was generally comparable to previously reported data.
Conclusion
This real-world analysis supports the use of nivolumab for pretreated NSCLC patients, including those with an older age.

Citations

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Advances in reprogramming of energy metabolism in tumor T cells
Liu Xuekai, Song Yan, Chu Jian, Song Yifei, Wu Xinyue, Zhang Wenyuan, Han Shuwen, Yang Xi
Frontiers in Immunology.2024;[Epub] CrossRef
Effectiveness and Safety of PD-1 Inhibitors’ Treatment for Patients with Non-Small-Cell Lung Cancer in China: A Real-World Study
Ning Wan, Yongbang Chen, Liqing Lu, Bing Wang, Liuliu He, Hongyi Liang, Fei Xie, Xiaoshun Jian, Bo Ji, Jianping Zhang, Hammoda Abu-Odah
European Journal of Cancer Care.2024; 2024: 1. CrossRef
Optimization of treatment strategies for elderly patients with advanced non-small cell lung cancer
Qiang Chen, Shuo Ying, Jianwen Qin, Li Zhang
Frontiers in Oncology.2024;[Epub] CrossRef
Real-World Data on Pembrolizumab for Pretreated Non-Small-Cell Lung Cancer: Clinical Outcome and Relevance of the Lung Immune Prognostic Index
Ana Ortega-Franco, Clare Hodgson, Haseem Raja, Mathew Carter, Colin Lindsay, Sarah Hughes, Laura Cove-Smith, Paul Taylor, Yvonne Summers, Fiona Blackhall, Raffaele Califano
Targeted Oncology.2022; 17(4): 453. CrossRef
Liver metastases and the efficacy of immune checkpoint inhibitors in advanced lung cancer: A systematic review and meta-analysis
Handai Xia, Wengang Zhang, Yuqing Zhang, Xiaoling Shang, Yanguo Liu, Xiuwen Wang
Frontiers in Oncology.2022;[Epub] CrossRef
Immune-Related Adverse Events Predict the Efficacy of Immune Checkpoint Inhibitors in Lung Cancer Patients: A Meta-Analysis
Donghui Wang, Cen Chen, Yanli Gu, Wanjun Lu, Ping Zhan, Hongbing Liu, Tangfeng Lv, Yong Song, Fang Zhang
Frontiers in Oncology.2021;[Epub] CrossRef
Broad-Spectrum Antibiotic Regimen Affects Survival in Patients Receiving Nivolumab for Non-Small Cell Lung Cancer
Min Jung Geum, Chungsoo Kim, Ji Eun Kang, Jae Hee Choi, Jae Song Kim, Eun Sun Son, Sun Min Lim, Sandy Jeong Rhie
Pharmaceuticals.2021; 14(5): 445. CrossRef
Nivolumab

Reactions Weekly.2021; 1855(1): 269. CrossRef
Immune-Related Adverse Events Associated With Outcomes in Patients With NSCLC Treated With Anti-PD-1 Inhibitors: A Systematic Review and Meta-Analysis
Zhe Zhao, Xinfeng Wang, Jinghan Qu, Wei Zuo, Yan Tang, Huijuan Zhu, Xiaoguang Chen
Frontiers in Oncology.2021;[Epub] CrossRef

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Randomized Phase III Trial of Irinotecan Plus Cisplatin versus Etoposide Plus Cisplatin in Chemotherapy-Naïve Korean Patients with Extensive-Disease Small Cell Lung Cancer: Dong-Wan Kim, Hoon-Gu Kim, Joo-Hang Kim, Keunchil Park, Hoon-Kyo Kim, Joung Soon Jang, Bong-Seog Kim, Jin-Hyoung Kang, Kyung Hee Lee, Sang-We Kim, Hun Mo Ryoo, Jin-Soo Kim, Ki Hyeong Lee, Jung Hye Kwon, Jin-Hyuk Choi, Sang Won Shin, Seokyung Hahn, Dae Seog Heo; Cancer Res Treat. 2019;51(1):119-127. Published online March 12, 2018; DOI: https://doi.org/10.4143/crt.2018.019

Abstract PDF Supplementary Material PubReader ePub

Purpose
This randomized phase III study was designed to compare the efficacy and safety of irinote-can plus cisplatin (IP) over etoposide plus cisplatin (EP) in Korean patients with extensive-disease small-cell lung cancer (SCLC).
Materials and Methods
Patients were randomly assigned to receive IP, composed of irinotecan 65 mg/m² intravenously on days 1 and 8+cisplatin 70 mg/m² intravenously on day 1 every 3 weeks, or EP, composed of etoposide 100 mg/m² intravenously on days 1, 2, 3+cisplatin 70 mg/m² intravenously on day 1, every 3 weeks for a maximum of six cycles, until disease progression, or until unacceptable toxicity occurred. The primary endpoint was overall survival.
Results
A total of 362 patients were randomized to IP (n=173) and EP (n=189) arms. There were no significant differences between IP and EP arms for the median overall survival (10.9 months vs. 10.3 months, p=0.120) and the median progression-free survival (6.5 months vs. 5.8 months, p=0.115). However, there was a significant difference in response rate (62.4% vs. 48.2%, p=0.006). The pre-planned subgroup analyses showed that IP was associated with longer overall survival in male (11.3 months vs. 10.1 months, p=0.036), < 65 years old (12.7 months vs. 11.3 months, p=0.024), and Eastern Cooperative Oncology Group performance status 0/1 (12.4 months vs. 10.9 months, p=0.040) patient groups. The severity of treatment-related adverse events such as grade 3/4 anemia, nausea and diarrhea was more frequent in patients treated with IP.
Conclusion
The IP chemotherapy did not significantly improve the survival compared with EP chemotherapy in Korean patients with extensive-disease SCLC.

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Reem Malouf, Sian Harrison, Victoria Pilkington, Charles Opondo, Chris Gale, Alan Stein, Linda S. Franck, Fiona Alderdice
BMC Pregnancy and Childbirth.2024;[Epub] CrossRef
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Clinical Benefits of new Systemic Therapy for Small‐Cell Lung Cancer Over Two Decades: A Cross‐Sectional Study
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The Clinical Respiratory Journal.2024;[Epub] CrossRef
Camptothecin and Its Derivatives from Traditional Chinese Medicine in Combination with Anticancer Therapy Regimens: A Systematic Review and Meta-Analysis
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Effect of trilaciclib administered before chemotherapy in patients with extensive-stage small-cell lung cancer: A pooled analysis of four randomized studies
Ying Liu, Lin Wu, Dingzhi Huang, Qiming Wang, Chen Yang, Li Zhou, Shuguang Sun, Xiaomei Jiang, Ying Cheng
Cancer Treatment and Research Communications.2024; 42: 100869. CrossRef
Efficacy and toxicity profile of first‐line treatment for extensive‐stage small cell lung cancer: A Bayesian network meta‐analysis
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Cancer Medicine.2023; 12(9): 10230. CrossRef
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Systematic evaluation of the efficacy‐effectiveness gap of systemic treatments in extensive disease small cell lung cancer
Christine M. Cramer‐van der Welle, Franz M. N. H. Schramel, Bas J. M. Peters, John W. G. van Putten, Olaf H. Klungel, Harry J. M. Groen, Ewoudt M. W. van de Garde
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Treatment Outcomes of 9,994 Patients With Extensive-Disease Small-Cell Lung Cancer From a Retrospective Nationwide Population-Based Cohort in the Korean HIRA Database
Jung Soo Lee, Seoree Kim, Soo-Yoon Sung, Yeo Hyung Kim, Hyun Woo Lee, Ji Hyung Hong, Yoon Ho Ko
Frontiers in Oncology.2021;[Epub] CrossRef
Comparative Efficacy and Safety of Immunotherapeutic Regimens with PD-1/PD-L1 Inhibitors for Previously Untreated Extensive-Stage Small Cell Lung Cancer: A Systematic Review and Network Meta-Analysis
Koichi Ando, Ryo Manabe, Yasunari Kishino, Sojiro Kusumoto, Toshimitsu Yamaoka, Akihiko Tanaka, Tohru Ohmori, Tsukasa Ohnishi, Hironori Sagara
Current Oncology.2021; 28(2): 1094. CrossRef
Efficacy of concurrent chemoradiotherapy for patients with limited-disease small-cell lung cancer: a retrospective, nationwide, population-based cohort study
Seo Ree Kim, Ji Hyung Hong, Soo-Yoon Sung, Yeo Hyung Kim, Sang Hoon Chun, Hyun Woo Lee, Jung Soo Lee, Yoon Ho Ko
BMC Cancer.2021;[Epub] CrossRef
Clinical significance of the cachexia index in patients with small cell lung cancer
Se-Il Go, Mi Jung Park, Gyeong-Won Lee
BMC Cancer.2021;[Epub] CrossRef
Sevens Cases of Neuroendocrine Carcinoma of the Nasal and Paranasal Sinuses
Ichiro Sekine, Kan Kishibe, Miki Takahara, Hiroaki Katada, Tatsuya Hayashi, Yasuaki Harabuchi
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Millie Das, Sukhmani K. Padda, Jared Weiss, Taofeek K. Owonikoko
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Geriatric Nutritional Risk Index as a prognostic marker in patients with extensive‐stage disease small cell lung cancer: Results from a randomized controlled trial
Gyeong‐Won Lee, Se‐Il Go, Dong‐Wan Kim, Hoon‐Gu Kim, Joo‐Hang Kim, Ho Jung An, Joung Soon Jang, Bong‐Seog Kim, Seokyung Hahn, Dae Seog Heo
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Mi-Sook Lee, Kyungsoo Jung, Ji-Young Song, Min-Jung Sung, Sung-Bin Ahn, Boram Lee, Doo-Yi Oh, Yoon-La Choi
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Hao Chen, Nobuyuki Horita, Kentaro Ito, Hideyuki Nagakura, Yu Hara, Nobuaki Kobayash, Masaki Yamamoto, Makoto Kudo, Takeshi Kaneko
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A Retrospective Cohort Study on Pretreated Neutrophil-to-Lymphocyte Ratio and Prognosis of Small Cell Lung Cancer: Evidence of Effect Modification by Chemotherapy Regimen

Feiwen Liu, Shaozhang Zhou, Liping Tan, Huiqin Jiang, Yucong Huang
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Ting Zhou, Zhonghan Zhang, Fan Luo, Yuanyuan Zhao, Xue Hou, Tingting Liu, Kai Wang, Hongyun Zhao, Yan Huang, Li Zhang
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Thérapie ciblée et immunothérapie du cancer bronchique à petites cellules
J.-L. Pujol, C. Goze, C. Pujol, B. Roch
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S-1 Based Doublet as an Adjuvant Chemotherapy for Curatively Resected Stage III Gastric Cancer: Results from the Randomized Phase III POST Trial: Choong-kun Lee, Minkyu Jung, Hyo Song Kim, Inkyung Jung, Dong Bok Shin, Seok Yun Kang, Dae Young Zang, Ki Hyang Kim, Moon Hee Lee, Bong-Seog Kim, Kyung Hee Lee, Jae-Ho Cheong, Woo Jin Hyung, Sung Hoon Noh, Hyun Cheol Chung, Sun Young Rha; Cancer Res Treat. 2019;51(1):1-11. Published online February 5, 2018; DOI: https://doi.org/10.4143/crt.2018.028

Abstract PDF Supplementary Material PubReader ePub

Purpose
We conducted a randomized, multicenter, phase III trial to compare S-1 plus docetaxel (DS) with S-1 plus cisplatin (SP) as adjuvant chemotherapy for stage III gastric cancer patients.
Materials and Methods
Stage III gastric cancer patients who had received curative gastrectomy with D2 lymphadenectomy were randomized into equal groups to receive adjuvant chemotherapy of eight cycles of DS (S-1 70 mg/m² /day on days 1-14 plus docetaxel 35 mg/m² on days 1 and 8) every 3 weeks or SP (S-1 70 mg/m² /day on days 1-14 plus cisplatin 60 mg/m² on day 1) every 3 weeks. The primary endpoint was 3-year disease-free survival (DFS) rate.
Results
Between November 2010 and July 2013, 153 patients (75 patients to DS and 78 patients to SP) were enrolled from 8 institutions in Korea. After the capecitabine plus oxaliplatin was approved based on the CLASSIC study, itwas decided to close the study early. With a median follow-up duration of 56.9 months, the 3-year DFS rate between two groups was not significantly different (49.14% in DS group vs. 52.5% in SP group). The most common grade 3-4 adverse event was neutropenia (42.7% in DS and 38.5% in SP, p=0.351). SP group had more grade 3-4 anemia (1.3% vs. 11.5%, p=0.037), whereas grade 3-4 hand-foot syndrome (4.1% vs. 0%, p=0.025) and mucositis (10.7% vs. 2.6%, p=0.001) were more common in DS group. Fifty-one patients (68%) in DS group and 52 (66.7%) in SP group finished planned treatment.
Conclusion
Our findings suggest that SP or DS is an effective and tolerable option for patients with curatively resected stage III gastric cancer.

Citations

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Efficacy and safety of docetaxel plus S-1-based therapy in gastric cancer: a quantitative evidence synthesis of randomized controlled trials
Hui-Fen Lv, Li-Feng Qin, Rui-Zhi Ran, Xue-Ping Jiang, Fang-Yu Zhao, Bo Li
Frontiers in Pharmacology.2024;[Epub] CrossRef
A novel method of bedside hyperthermic intraperitoneal chemotherapy as adjuvant therapy for stage-III gastric cancer
Lili Liu, Li Sun, Ning Zhang, Cheng-gong Liao, Haichuan Su, Jie Min, Yang Song, Xue Yang, Xiaofeng Huang, Dongxu Chen, Yu Chen, Hong-wei Zhang, Helong Zhang
International Journal of Hyperthermia.2022; 39(1): 239. CrossRef
Comment on “post-discharge oral nutritional supplements with dietary advice in patients at nutritional risk after surgery for gastric cancer: A randomized clinical trial”
Qiang Hu, Yuanshui Sun
Clinical Nutrition.2021; 40(3): 1438. CrossRef
THE ROLE OF ADJUVANT CHEMOTHERAPY IN THE TREATMENT OF LOCALLY ADVANCED GASTRIC CANCER
A. A. Bobryshev, M. M. Davudov, M. N. Narimanov, S. B. Polycarpova, V. Y. Kirsanov, V. N. Blindar
Siberian journal of oncology.2021; 20(1): 133. CrossRef
Multidisciplinary treatment strategy for locally advanced gastric cancer: A systematic review
Kotaro Sugawara, Yoshikuni Kawaguchi, Yasuyuki Seto, Jean-Nicolas Vauthey
Surgical Oncology.2021; 38: 101599. CrossRef
Surgery alone, adjuvant tegafur/gimeracil/octeracil (S-1), or platinum-based chemotherapies for resectable gastric cancer: real-world experience and a propensity score matching analysis
Chih-Chieh Yen, Yan-Shen Shan, Ying-Jui Chao, Ting-Kai Liao, I-Shu Chen, Hsuan-Yi Huang, I-Ting Liu, Chia-Jui Yen
BMC Cancer.2021;[Epub] CrossRef
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Long Ge, Liangying Hou, Qingxia Yang, Yiting Wu, Xiue Shi, Jiang Li, Kehu Yang
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Tom van den Ende, Emil ter Veer, Rosa M. A. Mali, Mark I. van Berge Henegouwen, Maarten C. C. M. Hulshof, Martijn G. H. van Oijen, Hanneke W. M. van Laarhoven
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Tom van den Ende, Frank A. Abe Nijenhuis, Héctor G. van den Boorn, Emil ter Veer, Maarten C. C. M. Hulshof, Suzanne S. Gisbertz, Martijn G. H. van Oijen, Hanneke W. M. van Laarhoven
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Dai Shimizu, Mitsuro Kanda, Yasuhiro Kodera, Junichi Sakamoto
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Phase II Study of Dovitinib in Patients with Castration-Resistant Prostate Cancer (KCSG-GU11-05): Yoon Ji Choi, Hye Sook Kim, Se Hoon Park, Bong-Seog Kim, Kyoung Ha Kim, Hyo Jin Lee, Hong Suk Song, Dong-Yeop Shin, Ha Young Lee, Hoon-Gu Kim, Kyung Hee Lee, Jae Lyun Lee, Kyong Hwa Park; Cancer Res Treat. 2018;50(4):1252-1259. Published online January 2, 2018; DOI: https://doi.org/10.4143/crt.2017.438

Abstract PDF PubReader ePub

Purpose
Fibroblast growth factor (FGF) signals are important in carcinogenesis and progression of prostate cancer. Dovitinib is an oral, pan-class inhibitor of vascular endothelial growth factor receptor (VEGFR), platelet-derived growth factor receptor, and fibroblast growth factor receptor (FGFR). We evaluated the efficacy and toxicity of dovitinib in men with metastatic castration resistant prostate cancer (mCRPC).
Materials and Methods
This study was a single-arm, phase II, open-label, multicenter trial of dovitinib 500 mg/day (5-days-on/2-days-off schedule). The primary endpointwas 16-week progression-free survival (PFS). Secondary endpoints were overall survival (OS), toxicity and prostate-specific antigen (PSA) response rate. Biomarker analyses for VEGFR2, FGF23, and FGFR2 using multiplex enzyme-linked immunosorbent assay was performed.
Results
Forty-four men were accrued from 11 hospitals. Eighty percent were post-docetaxel. Median PSA was 100 ng/dL, median age was 69, 82% had bone metastases, and 23% had liver metastases. Median cycles of dovitinibwas 2 (range, 0 to 33). Median PFSwas 3.67 months (95% confidence interval [CI], 1.36 to 5.98) and median OS was 13.70 months (95% CI, 0 to 27.41). Chemotherapy-naïve patients had longer PFS (17.90 months; 95% CI, 9.23 to 28.57) compared with docetaxel-treated patients (2.07 months; 95% CI, 1.73 to 2.41; p=0.001) and the patients with high serum VEGFR2 level over median level (7,800 pg/mL) showed longer PFS compared with others (6.03 months [95% CI, 4.26 to 7.80] vs. 1.97 months [95% CI, 1.79 to 2.15], p=0.023). Grade 3 related adverse events were seen in 40.9% of patients. Grade 1-2 nausea, diarrhea, fatigue, anorexia, and all grade thrombocytopenia are common.
Conclusion
Dovitinib showed modest antitumor activity with manageable toxicities in men with mCRPC. Especially, patients who were chemo-naïve benefitted from dovitinib.

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Experiences and Opinions Related to End-of-Life Discussion: From Oncologists' and Resident Physicians' Perspectives: Su-Jin Koh, Shinmi Kim, JinShil Kim, Bhumsuk Keam, Dae Seog Heo, Kyung Hee Lee, Bong-Seog Kim, Jee Hyun Kim, Hye Jung Chang, Sun Kyung Baek; Cancer Res Treat. 2018;50(2):614-623. Published online July 3, 2017; DOI: https://doi.org/10.4143/crt.2016.446

Abstract PDF PubReader ePub

Purpose
The aims of this study were to explore how oncologists and resident physicians practice end-of-life (EOL) discussions and to solicit their opinions on EOL discussions as a means to improve the quality of EOL care.
Materials and Methods
A survey questionnaire was developed to explore the experiences and opinions about EOL discussions among oncologists and residents. Descriptive statistics, the t test, and the chisquare test were performed for the analyses.
Results
A total of 147 oncologists and 229 residents participated in this study. The study respondents reported diverse definitions of “terminal state,” and mostrespondents tried to disclose the patient’s condition to the patient and/or family members. Both groups were involved in EOL care discussions, with a rather low satisfaction level (57.82/100). The best timing to initiate discussionwas consideredwhen metastasis or disease recurrence occurred orwhen withdrawal of chemotherapy was anticipated. Furthermore, the study respondents suggested that patients and their family members should be included in the EOL discussion. Medical, legal, and ethical knowledge and communication difficulties along with practical issues were revealed as barriers and facilitators for EOL discussion.
Conclusion
This study explored various perspectives of oncologists and resident physicians for EOL discussion. Since the Life-Sustaining-Treatment Decision-Making Act will be implemented shortly in Korea, now is the time for oncologists and residents to prepare themselves by acquiring legal knowledge and communication skills. To achieve this, education, training, and clinical tools for healthcare professionals are required.

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Issues and implications of the life-sustaining treatment decision act: comparing the data from the survey and clinical data of inpatients at the end-of-life process
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Hyeon-Su Im, Insook Lee, Shinmi Kim, Jong Soo Lee, Ju-Hee Kim, Jae Young Moon, Byung Kyu Park, Kyung Hee Lee, Myung Ah Lee, Sanghoon Han, Yoonki Hong, Hyeyeoung Kim, Jaekyung Cheon, Su-Jin Koh
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Sita de Vries, Mary-Joanne Verhoef, Sigrid Cornelia Johanna Maria Vervoort, Yvette Milene van der Linden, Saskia Cornelia Constantia Maria Teunissen, Everlien de Graaf
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Difficulties Doctors Experience during Life-Sustaining Treatment Discussion after Enactment of the Life-Sustaining Treatment Decisions Act: A Cross-Sectional Study
Shin Hye Yoo, Wonho Choi, Yejin Kim, Min Sun Kim, Hye Yoon Park, Bhumsuk Keam, Dae Seog Heo
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Practice Patterns Regarding Multidisciplinary Cancer Management and Suggestions for Further Refinement: Results from a National Survey in Korea: Yun-Gyoo Lee, Sukjoong Oh, Heejin Kimm, Dong-Hoe Koo, Do Yeun Kim, Bong-Seog Kim, Seung-Sei Lee; Cancer Res Treat. 2017;49(4):1164-1169. Published online February 22, 2017; DOI: https://doi.org/10.4143/crt.2016.517

Abstract PDF PubReader ePub

Purpose
This study was conducted to explore the process and operation of a cancer multidisciplinary team (MDT) after the reimbursement decision in Korea, and to identify ways to overcome the major barriers to effective and sustainable MDTs.
Materials and Methods
Approximately 1,000 cancer specialists, including medical oncologists, surgical oncologists, radiation oncologists, pathologists, and radiologists in general hospitals in Koreawere invited to complete the survey. The questionnaire covered the following topics: organizational structure of MDTs, candidates for consulting, the clinical decision-making initiative, and responsibility for dealing with legal disputes.
Results
We collected a total of 179 responses (18%) from physicians at institutions where an MDT approachwas active. A surgical oncologist (91%), internist (90%),radiologist (89%),radiation oncologist (86%), pathologist (71%), and trainees (20%) regularly participated in MDT operations. Approximately 55% of respondents stated that MDTs met regularly. In cases of a split opinion, the physician in charge (69%) or chairperson (17%) made the final decision, and most (86%) stated they followed the final decision. About 15% and 32% of respondents were “very satisfied” and “satisfied,” respectively, with the current MDT’s operations. Among 38 institutional representatives, 34% responded that the MDT operation became more active and 18% stated an MDT was newly implemented after the reimbursement decision.
Conclusion
The reimbursement decision invigorated MDT operations in almost half of eligible hospitals. Dissatisfaction regarding current MDTs was over 50%, and the high discordance rates regarding risk sharing suggest that it is necessary to revise the current system of MDTs.

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Janneke E.W. Walraven, Theodora M. Ripping, Jorg R. Oddens, Bas W.G. van Rhijn, Catharina A. Goossens‐Laan, Maarten C.C.M. Hulshof, Lambertus A. Kiemeney, J.A. Witjes, Valery E.P.P. Lemmens, Jacobus J.M. van der Hoeven, Ingrid M.E. Desar, Katja K.H. Aben,
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Practice patterns of multidisciplinary team meetings in Korean cancer care and patient satisfaction with this approach
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PLOS ONE.2019; 14(10): e0223678. CrossRef

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Survey of Medical Oncology Status in Korea (SOMOS-K): A National Survey of Medical Oncologists in the Korean Association for Clinical Oncology (KACO): Do Yeun Kim, Yun Gyoo Lee, Bong-Seog Kim; Cancer Res Treat. 2017;49(3):588-594. Published online September 23, 2016; DOI: https://doi.org/10.4143/crt.2016.313

Abstract PDF PubReader ePub

Purpose
This study was conducted to investigate the current role of medical oncologists in cancer care with a focus on increasing the recognition of medical oncology as an independent specialty.
Materials and Methods
Questionnaires modified from the Medical Oncology Status in Europe Survey dealing with oncology structure, resources, research, and patterns of care given by medical oncologists were selected. Several modifications were made to the questionnaire after feedback from the insurance and policy committee of the Korean Association for Clinical Oncology (KACO). The online survey was then sent to KACO members.
Results
A total of 214 medical oncologists (45.8% of the total inquiries), including 71 directors of medical oncology institutions, took the survey. Most institutions had various resources, including a medical oncology department (94.1%) and a department of radiation oncology (82.4%). There was an average of four medical oncologists at each institution. Medical oncologists were involved in various treatments from diagnosis to end-of-life care. They were also chemotherapy providers from a wide range of institutions that treated many types of solid cancers. In addition, 86.2% of the institutions conducted research.
Conclusion
This is the first national survey in Korea to show that medical oncologists are involved in a wide range of cancer treatments and care. This survey emphasizes the contributions and proper roles of medical oncologists in the evolving health care environment in Korea.

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Current status of medical oncology in Japan and changes over the most recent 7-year period: results of a questionnaire sent to designated cancer care hospitals
Makoto Arai, Izumi Ohno, Koji Takahashi, Meng Meng Fan, Akinobu Tawada, Chikashi Ishioka, Yuichi Takiguchi
Japanese Journal of Clinical Oncology.2021; 51(11): 1622. CrossRef
Practice patterns of multidisciplinary team meetings in Korean cancer care and patient satisfaction with this approach
Chi Hoon Maeng, Hee Kyung Ahn, Sung Yong Oh, Seungtaek Lim, Bong-Seog Kim, Do Yeun Kim
The Korean Journal of Internal Medicine.2020; 35(1): 205. CrossRef
Surrogate decision making of chemotherapy consent: do we really provide informed consent of chemotherapy for patients?
Jung Hye Kwon, Sun Kyung Baek, Bong-Seog Kim, Su-Jin Koh, Hee Kyung Ahn, Joo Han Lim, Chiyeon Lim, Do Yeun Kim
The Korean Journal of Internal Medicine.2019; 34(3): 626. CrossRef

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A Randomized Double-Blind, Double-Dummy, Multicenter Trial of Azasetron versus Ondansetron to Evaluate Efficacy and Safety in the Prevention of Delayed Nausea and Vomiting Induced by Chemotherapy: Hee Yeon Lee, Hoon-Kyo Kim, Kyung Hee Lee, Bong-Seog Kim, Hong Suk Song, Sung Hyun Yang, Joon Hee Kim, Yeul Hong Kim, Jong Gwang Kim, Sang-We Kim, Dong-Wan Kim, Si-Young Kim, Hee Sook Park; Cancer Res Treat. 2014;46(1):19-26. Published online January 15, 2014; DOI: https://doi.org/10.4143/crt.2014.46.1.19

Abstract PDF PubReader ePub

PURPOSE
This study was conducted to evaluate the efficacy and safety of azasetron compared to ondansetron in the prevention of delayed chemotherapy-induced nausea and vomiting.
MATERIALS AND METHODS
This study was a multi-center, prospective, randomized, double-dummy, double-blind and parallel-group trial involving 12 institutions in Korea between May 2005 and December 2005. A total of 265 patients with moderately and highly emetogenic chemotherapy were included and randomly assigned to either the azasetron or ondansetron group. All patients received azasetron (10 mg intravenously) and dexamethasone (20 mg intravenously) on day 1 and dexamethasone (4 mg orally every 12 hours) on days 2-4. The azasetron group received azasetron (10 mg orally) with placebo of ondansetron (orally every 12 hours), and the ondansetron group received ondansetron (8 mg orally every 12 hours) with placebo of azasetron (orally) on days 2-6.
RESULTS
Over days 2-6, the effective ratio of complete response in the azasetron and ondansetron groups was 45% and 54.5%, respectively (95% confidence interval, -21.4 to 2.5%). Thus, the non-inferiority of azasetron compared with ondansetron in delayed chemotherapy-induced nausea and vomiting was not proven in the present study. All treatments were well tolerated and no unexpected drug-related adverse events were reported. The most common adverse events related to the treatment were constipation and hiccups, and there were no differences in the overall incidence of adverse events.
CONCLUSION
In the present study, azasetron showed inferiority in the control of delayed chemotherapy-induced nausea and vomiting compared with ondansetron whereas safety profiles were similar between the two groups.

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Ayyar Porkodi, Deepak Gopal Shewade, Goud Alladi Charanraj
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Discrepant Views of Korean Medical Oncologists and Cancer Patients on Complementary and Alternative Medicine: Do Yeun Kim, Bong-Seog Kim, Kyung Hee Lee, Myung Ah Lee, Young Seon Hong, Sang Won Shin, Soon Nam Lee; Cancer Res Treat. 2008;40(2):87-92. Published online June 30, 2008; DOI: https://doi.org/10.4143/crt.2008.40.2.87

Abstract PDF PubReader ePub

Purpose

This study was designed to evaluate the communication gap between Korean medical oncologists and cancer patients on complementary and alternative medicine (CAM).

Materials and Methods

Cross sectional studies utilized the responses of 59 medical oncologists and 211 patients. To understand the communication gap, perceived reasons and nondisclosure of CAM use, reactions of physicians to disclosure, and expectations for CAM were analyzed. Data were compared with use of the chi-squared test.

Results

Both medical oncologists and patients were in accord that CAM use would privde the patients with a feeling of hope. The medical oncologists believed more often than patients to attribute CAM use for control over medical care decisions, for the treatment of an incurable disease or as a nontoxic approach (p<0.05). Regarding reasons for nondisclosure, medical oncologists were more likely to think that physicians would not understand the use of CAM, discontinue treatment or disapprove of the use of CAM (p<0.0001). Patients attributed nondisclosure mainly to the lack of questioning about CAM. Medical oncologists were more likely to warn of the risks with CAM use and less likely to encourage the use of CAM than perceived by patients (p=0.01). Patients expected that CAM could cure disease, extend survival, relieve symptoms and improve the immune system or quality of life more often than medical oncologists (p<0.05).

Conclusion

Given the discrepant views of medical oncologists and patients on the use of CAM, medical oncologists should be aware of the discrepancies and attempt to resolve any differences.

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Wan-Qin Chong, Maria Jannet Mogro, Asrie Arsad, Bee-Choo Tai, Soo-Chin Lee
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