1.Harnessing Institutionally Developed Clinical Targeted Sequencing to Improve Patient Survival in Breast Cancer: A Seven-Year Experience
Jiwon KOH ; Jinyong KIM ; Go-Un WOO ; Hanbaek YI ; So Yean KWON ; Jeongmin SEO ; Jeong Mo BAE ; Jung Ho KIM ; Jae Kyung WON ; Han Suk RYU ; Yoon Kyung JEON ; Dae-Won LEE ; Miso KIM ; Tae-Yong KIM ; Kyung-Hun LEE ; Tae-You KIM ; Jee-Soo LEE ; Moon-Woo SEONG ; Sheehyun KIM ; Sungyoung LEE ; Hongseok YUN ; Myung Geun SONG ; Jaeyong CHOI ; Jong-Il KIM ; Seock-Ah IM
Cancer Research and Treatment 2025;57(2):443-456
Purpose:
Considering the high disease burden and unique features of Asian patients with breast cancer (BC), it is essential to have a comprehensive view of genetic characteristics in this population. An institutional targeted sequencing platform was developed through the Korea Research-Driven Hospitals project and was incorporated into clinical practice. This study explores the use of targeted next-generation sequencing (NGS) and its outcomes in patients with advanced/metastatic BC in the real world.
Materials and Methods:
We reviewed the results of NGS tests administered to BC patients using a customized sequencing platform—FiRST Cancer Panel (FCP)—over 7 years. We systematically described clinical translation of FCP for precise diagnostics, personalized therapeutic strategies, and unraveling disease pathogenesis.
Results:
NGS tests were conducted on 548 samples from 522 patients with BC. Ninety-seven point six percentage of tested samples harbored at least one pathogenic alteration. The common alterations included mutations in TP53 (56.2%), PIK3CA (31.2%), GATA3 (13.8%), BRCA2 (10.2%), and amplifications of CCND1 (10.8%), FGF19 (10.0%), and ERBB2 (9.5%). NGS analysis of ERBB2 amplification correlated well with human epidermal growth factor receptor 2 immunohistochemistry and in situ hybridization. RNA panel analyses found potentially actionable and prognostic fusion genes. FCP effectively screened for potentially germline pathogenic/likely pathogenic mutation. Ten point three percent of BC patients received matched therapy guided by NGS, resulting in a significant overall survival advantage (p=0.022), especially for metastatic BCs.
Conclusion
Clinical NGS provided multifaceted benefits, deepening our understanding of the disease, improving diagnostic precision, and paving the way for targeted therapies. The concrete advantages of FCP highlight the importance of multi-gene testing for BC, especially for metastatic conditions.
2.Harnessing Institutionally Developed Clinical Targeted Sequencing to Improve Patient Survival in Breast Cancer: A Seven-Year Experience
Jiwon KOH ; Jinyong KIM ; Go-Un WOO ; Hanbaek YI ; So Yean KWON ; Jeongmin SEO ; Jeong Mo BAE ; Jung Ho KIM ; Jae Kyung WON ; Han Suk RYU ; Yoon Kyung JEON ; Dae-Won LEE ; Miso KIM ; Tae-Yong KIM ; Kyung-Hun LEE ; Tae-You KIM ; Jee-Soo LEE ; Moon-Woo SEONG ; Sheehyun KIM ; Sungyoung LEE ; Hongseok YUN ; Myung Geun SONG ; Jaeyong CHOI ; Jong-Il KIM ; Seock-Ah IM
Cancer Research and Treatment 2025;57(2):443-456
Purpose:
Considering the high disease burden and unique features of Asian patients with breast cancer (BC), it is essential to have a comprehensive view of genetic characteristics in this population. An institutional targeted sequencing platform was developed through the Korea Research-Driven Hospitals project and was incorporated into clinical practice. This study explores the use of targeted next-generation sequencing (NGS) and its outcomes in patients with advanced/metastatic BC in the real world.
Materials and Methods:
We reviewed the results of NGS tests administered to BC patients using a customized sequencing platform—FiRST Cancer Panel (FCP)—over 7 years. We systematically described clinical translation of FCP for precise diagnostics, personalized therapeutic strategies, and unraveling disease pathogenesis.
Results:
NGS tests were conducted on 548 samples from 522 patients with BC. Ninety-seven point six percentage of tested samples harbored at least one pathogenic alteration. The common alterations included mutations in TP53 (56.2%), PIK3CA (31.2%), GATA3 (13.8%), BRCA2 (10.2%), and amplifications of CCND1 (10.8%), FGF19 (10.0%), and ERBB2 (9.5%). NGS analysis of ERBB2 amplification correlated well with human epidermal growth factor receptor 2 immunohistochemistry and in situ hybridization. RNA panel analyses found potentially actionable and prognostic fusion genes. FCP effectively screened for potentially germline pathogenic/likely pathogenic mutation. Ten point three percent of BC patients received matched therapy guided by NGS, resulting in a significant overall survival advantage (p=0.022), especially for metastatic BCs.
Conclusion
Clinical NGS provided multifaceted benefits, deepening our understanding of the disease, improving diagnostic precision, and paving the way for targeted therapies. The concrete advantages of FCP highlight the importance of multi-gene testing for BC, especially for metastatic conditions.
3.Harnessing Institutionally Developed Clinical Targeted Sequencing to Improve Patient Survival in Breast Cancer: A Seven-Year Experience
Jiwon KOH ; Jinyong KIM ; Go-Un WOO ; Hanbaek YI ; So Yean KWON ; Jeongmin SEO ; Jeong Mo BAE ; Jung Ho KIM ; Jae Kyung WON ; Han Suk RYU ; Yoon Kyung JEON ; Dae-Won LEE ; Miso KIM ; Tae-Yong KIM ; Kyung-Hun LEE ; Tae-You KIM ; Jee-Soo LEE ; Moon-Woo SEONG ; Sheehyun KIM ; Sungyoung LEE ; Hongseok YUN ; Myung Geun SONG ; Jaeyong CHOI ; Jong-Il KIM ; Seock-Ah IM
Cancer Research and Treatment 2025;57(2):443-456
Purpose:
Considering the high disease burden and unique features of Asian patients with breast cancer (BC), it is essential to have a comprehensive view of genetic characteristics in this population. An institutional targeted sequencing platform was developed through the Korea Research-Driven Hospitals project and was incorporated into clinical practice. This study explores the use of targeted next-generation sequencing (NGS) and its outcomes in patients with advanced/metastatic BC in the real world.
Materials and Methods:
We reviewed the results of NGS tests administered to BC patients using a customized sequencing platform—FiRST Cancer Panel (FCP)—over 7 years. We systematically described clinical translation of FCP for precise diagnostics, personalized therapeutic strategies, and unraveling disease pathogenesis.
Results:
NGS tests were conducted on 548 samples from 522 patients with BC. Ninety-seven point six percentage of tested samples harbored at least one pathogenic alteration. The common alterations included mutations in TP53 (56.2%), PIK3CA (31.2%), GATA3 (13.8%), BRCA2 (10.2%), and amplifications of CCND1 (10.8%), FGF19 (10.0%), and ERBB2 (9.5%). NGS analysis of ERBB2 amplification correlated well with human epidermal growth factor receptor 2 immunohistochemistry and in situ hybridization. RNA panel analyses found potentially actionable and prognostic fusion genes. FCP effectively screened for potentially germline pathogenic/likely pathogenic mutation. Ten point three percent of BC patients received matched therapy guided by NGS, resulting in a significant overall survival advantage (p=0.022), especially for metastatic BCs.
Conclusion
Clinical NGS provided multifaceted benefits, deepening our understanding of the disease, improving diagnostic precision, and paving the way for targeted therapies. The concrete advantages of FCP highlight the importance of multi-gene testing for BC, especially for metastatic conditions.
4.Evaluation of Burnout and Contributing Factors in Imaging Cardiologists in Korea
You-Jung CHOI ; Kang-Un CHOI ; Young-Mee LEE ; Hyun-Jung LEE ; Inki MOON ; Jiwon SEO ; Kyu KIM ; So Ree KIM ; Jihoon KIM ; Hong-Mi CHOI ; Seo-Yeon GWAK ; Minkwan KIM ; Minjeong KIM ; Kyu-Yong KO ; Jin Kyung OH ; Jah Yeon CHOI ; Dong-Hyuk CHO ; On behalf of the Korean Society of Echocardiography Heart Imagers of Tomorrow
Journal of Korean Medical Science 2024;40(5):e21-
Background:
We aimed to examine the prevalence of burnout among imaging cardiologists in Korea and to identify its associated factors.
Methods:
An online survey of imaging cardiologists affiliated with university hospitals in Korea was conducted using SurveyMonkey ® in November 2023. The validated Korean version of the Maslach Burnout Inventory-Human Service Survey was used to assess burnout across three dimensions: emotional exhaustion, depersonalization, and lack of personal accomplishment. Data on demographics, work environment factors, and job satisfaction were collected using structured questionnaires.
Results:
A total of 128 imaging cardiologists (46.1% men; 76.6% aged ≤ 50 years) participated in the survey. Regarding workload, 74.2% of the respondents interpreted over 50 echocardiographic examinations daily, and 53.2% allocated > 5 of 10 working sessions per week to echocardiographic laboratory duties. Burnout levels were high, with a significant proportion of participants experiencing emotional exhaustion (28.1%), depersonalization (63.3%), and a lack of personal accomplishment (92.2%). Younger age (< 50 years) was correlated with higher emotional exhaustion risk, while more research time was protective against burnout in the depersonalization domain. Factors, such as being single, living with family, and specific job satisfaction facets, including uncontrollable workload and value mismatch, were associated with varying levels of burnout risk across different dimensions
Conclusion
Our study underscores the high burnout rates among Korean imaging cardiologists, attributed to factors such as the subjective environment and job satisfaction.Hence, evaluating and supporting cardiologists in terms of individual values and subjective factors are important to effectively prevent burnout..
5.Evaluation of Burnout and Contributing Factors in Imaging Cardiologists in Korea
You-Jung CHOI ; Kang-Un CHOI ; Young-Mee LEE ; Hyun-Jung LEE ; Inki MOON ; Jiwon SEO ; Kyu KIM ; So Ree KIM ; Jihoon KIM ; Hong-Mi CHOI ; Seo-Yeon GWAK ; Minkwan KIM ; Minjeong KIM ; Kyu-Yong KO ; Jin Kyung OH ; Jah Yeon CHOI ; Dong-Hyuk CHO ; On behalf of the Korean Society of Echocardiography Heart Imagers of Tomorrow
Journal of Korean Medical Science 2024;40(5):e21-
Background:
We aimed to examine the prevalence of burnout among imaging cardiologists in Korea and to identify its associated factors.
Methods:
An online survey of imaging cardiologists affiliated with university hospitals in Korea was conducted using SurveyMonkey ® in November 2023. The validated Korean version of the Maslach Burnout Inventory-Human Service Survey was used to assess burnout across three dimensions: emotional exhaustion, depersonalization, and lack of personal accomplishment. Data on demographics, work environment factors, and job satisfaction were collected using structured questionnaires.
Results:
A total of 128 imaging cardiologists (46.1% men; 76.6% aged ≤ 50 years) participated in the survey. Regarding workload, 74.2% of the respondents interpreted over 50 echocardiographic examinations daily, and 53.2% allocated > 5 of 10 working sessions per week to echocardiographic laboratory duties. Burnout levels were high, with a significant proportion of participants experiencing emotional exhaustion (28.1%), depersonalization (63.3%), and a lack of personal accomplishment (92.2%). Younger age (< 50 years) was correlated with higher emotional exhaustion risk, while more research time was protective against burnout in the depersonalization domain. Factors, such as being single, living with family, and specific job satisfaction facets, including uncontrollable workload and value mismatch, were associated with varying levels of burnout risk across different dimensions
Conclusion
Our study underscores the high burnout rates among Korean imaging cardiologists, attributed to factors such as the subjective environment and job satisfaction.Hence, evaluating and supporting cardiologists in terms of individual values and subjective factors are important to effectively prevent burnout..
6.Evaluation of Burnout and Contributing Factors in Imaging Cardiologists in Korea
You-Jung CHOI ; Kang-Un CHOI ; Young-Mee LEE ; Hyun-Jung LEE ; Inki MOON ; Jiwon SEO ; Kyu KIM ; So Ree KIM ; Jihoon KIM ; Hong-Mi CHOI ; Seo-Yeon GWAK ; Minkwan KIM ; Minjeong KIM ; Kyu-Yong KO ; Jin Kyung OH ; Jah Yeon CHOI ; Dong-Hyuk CHO ; On behalf of the Korean Society of Echocardiography Heart Imagers of Tomorrow
Journal of Korean Medical Science 2024;40(5):e21-
Background:
We aimed to examine the prevalence of burnout among imaging cardiologists in Korea and to identify its associated factors.
Methods:
An online survey of imaging cardiologists affiliated with university hospitals in Korea was conducted using SurveyMonkey ® in November 2023. The validated Korean version of the Maslach Burnout Inventory-Human Service Survey was used to assess burnout across three dimensions: emotional exhaustion, depersonalization, and lack of personal accomplishment. Data on demographics, work environment factors, and job satisfaction were collected using structured questionnaires.
Results:
A total of 128 imaging cardiologists (46.1% men; 76.6% aged ≤ 50 years) participated in the survey. Regarding workload, 74.2% of the respondents interpreted over 50 echocardiographic examinations daily, and 53.2% allocated > 5 of 10 working sessions per week to echocardiographic laboratory duties. Burnout levels were high, with a significant proportion of participants experiencing emotional exhaustion (28.1%), depersonalization (63.3%), and a lack of personal accomplishment (92.2%). Younger age (< 50 years) was correlated with higher emotional exhaustion risk, while more research time was protective against burnout in the depersonalization domain. Factors, such as being single, living with family, and specific job satisfaction facets, including uncontrollable workload and value mismatch, were associated with varying levels of burnout risk across different dimensions
Conclusion
Our study underscores the high burnout rates among Korean imaging cardiologists, attributed to factors such as the subjective environment and job satisfaction.Hence, evaluating and supporting cardiologists in terms of individual values and subjective factors are important to effectively prevent burnout..
7.Evaluation of Burnout and Contributing Factors in Imaging Cardiologists in Korea
You-Jung CHOI ; Kang-Un CHOI ; Young-Mee LEE ; Hyun-Jung LEE ; Inki MOON ; Jiwon SEO ; Kyu KIM ; So Ree KIM ; Jihoon KIM ; Hong-Mi CHOI ; Seo-Yeon GWAK ; Minkwan KIM ; Minjeong KIM ; Kyu-Yong KO ; Jin Kyung OH ; Jah Yeon CHOI ; Dong-Hyuk CHO ; On behalf of the Korean Society of Echocardiography Heart Imagers of Tomorrow
Journal of Korean Medical Science 2024;40(5):e21-
Background:
We aimed to examine the prevalence of burnout among imaging cardiologists in Korea and to identify its associated factors.
Methods:
An online survey of imaging cardiologists affiliated with university hospitals in Korea was conducted using SurveyMonkey ® in November 2023. The validated Korean version of the Maslach Burnout Inventory-Human Service Survey was used to assess burnout across three dimensions: emotional exhaustion, depersonalization, and lack of personal accomplishment. Data on demographics, work environment factors, and job satisfaction were collected using structured questionnaires.
Results:
A total of 128 imaging cardiologists (46.1% men; 76.6% aged ≤ 50 years) participated in the survey. Regarding workload, 74.2% of the respondents interpreted over 50 echocardiographic examinations daily, and 53.2% allocated > 5 of 10 working sessions per week to echocardiographic laboratory duties. Burnout levels were high, with a significant proportion of participants experiencing emotional exhaustion (28.1%), depersonalization (63.3%), and a lack of personal accomplishment (92.2%). Younger age (< 50 years) was correlated with higher emotional exhaustion risk, while more research time was protective against burnout in the depersonalization domain. Factors, such as being single, living with family, and specific job satisfaction facets, including uncontrollable workload and value mismatch, were associated with varying levels of burnout risk across different dimensions
Conclusion
Our study underscores the high burnout rates among Korean imaging cardiologists, attributed to factors such as the subjective environment and job satisfaction.Hence, evaluating and supporting cardiologists in terms of individual values and subjective factors are important to effectively prevent burnout..
8.Prevalence and Associated Factors of Depression and Anxiety Among Healthcare Workers During the Coronavirus Disease 2019 Pandemic:A Nationwide Study in Korea
Shinwon LEE ; Soyoon HWANG ; Ki Tae KWON ; EunKyung NAM ; Un Sun CHUNG ; Shin-Woo KIM ; Hyun-Ha CHANG ; Yoonjung KIM ; Sohyun BAE ; Ji-Yeon SHIN ; Sang-geun BAE ; Hyun Wook RYOO ; Juhwan JEONG ; NamHee OH ; So Hee LEE ; Yeonjae KIM ; Chang Kyung KANG ; Hye Yoon PARK ; Jiho PARK ; Se Yoon PARK ; Bongyoung KIM ; Hae Suk CHEONG ; Ji Woong SON ; Su Jin LIM ; Seongcheol YUN ; Won Sup OH ; Kyung-Hwa PARK ; Ju-Yeon LEE ; Sang Taek HEO ; Ji-yeon LEE
Journal of Korean Medical Science 2024;39(13):e120-
Background:
A healthcare system’s collapse due to a pandemic, such as the coronavirus disease 2019 (COVID-19), can expose healthcare workers (HCWs) to various mental health problems. This study aimed to investigate the impact of the COVID-19 pandemic on the depression and anxiety of HCWs.
Methods:
A nationwide questionnaire-based survey was conducted on HCWs who worked in healthcare facilities and public health centers in Korea in December 2020. Patient Health Questionnaire-9 (PHQ-9) and Generalized Anxiety Disorder-7 (GAD-7) were used to measure depression and anxiety. To investigate factors associated with depression and anxiety, stepwise multiple logistic regression analysis was performed.
Results:
A total of 1,425 participating HCWs were included. The mean depression score (PHQ-9) of HCWs before and after COVID-19 increased from 2.37 to 5.39, and the mean anxiety score (GAD-7) increased from 1.41 to 3.41. The proportion of HCWs with moderate to severe depression (PHQ-9 ≥ 10) increased from 3.8% before COVID-19 to 19.5% after COVID-19, whereas that of HCWs with moderate to severe anxiety (GAD-7 ≥ 10) increased from 2.0% to 10.1%. In our study, insomnia, chronic fatigue symptoms and physical symptoms after COVID-19, anxiety score (GAD-7) after COVID-19, living alone, and exhaustion were positively correlated with depression. Furthermore, post-traumatic stress symptoms, stress score (Global Assessment of Recent Stress), depression score (PHQ-9) after COVID-19, and exhaustion were positively correlated with anxiety.
Conclusion
In Korea, during the COVID-19 pandemic, HCWs commonly suffered from mental health problems, including depression and anxiety. Regularly checking the physical and mental health problems of HCWs during the COVID-19 pandemic is crucial, and social support and strategy are needed to reduce the heavy workload and psychological distress of HCWs.
9.Real-World Outcomes of Adalimumab Treatment for Moderate and Severe Psoriasis in Korean Patients (RAPSODI Study)
Dong Hyun KIM ; Sang Wook SON ; Ki-Heon JEONG ; Jiyoung AHN ; Eun-So LEE ; Il-Hwan KIM ; Un Ha LEE ; Hai-Jin PARK ; Joo Yeon KO ; Byung-Soo KIM ; Jin Ju KIM ; Javed RASHID ; Kwang Joong KIM
Annals of Dermatology 2023;35(2):107-115
Background:
Psoriasis imposes a significant treatment burden on patients, particularly impacting well-being and quality of life (QoL). The psychosocial impact of psoriasis treatments remains unexplored in most patient populations.
Objective:
To assess the impact of adalimumab on health-related QoL (HRQoL) in Korean patients with psoriasis.
Methods:
This 24-week, multicenter, observational study, assessed HRQoL in Korean patients treated with adalimumab in a real-world setting. Patient-reported outcomes (PROs) including European Quality of Life-5 Dimension scale (EQ-5D), EQ-5D VAS, SF-36, and DLQI were evaluated at week 16 and 24, versus baseline. Patient satisfaction was assessed using TSQM.
Results:
Among 97 enrolled patients, 77 were assessed for treatment effectiveness. Most patients were male (52, 67.5%) and mean age was 45.4 years. Median baseline body surface area and Psoriasis Area and Severity Index (PASI) scores were 15.00 (range 4.00~80.00) and 12.40 (range 2.70~39.40), respectively. Statistically significant improvements in all PROs were observed between baseline and week 24. Mean EQ-5D score improved from 0.88 (standard deviation [SD], 0.14) at baseline to 0.91 (SD, 0.17) at week 24 (p=0.0067). The number of patients with changes in PASI 75, 90, or 100 from baseline to week 16 and 24 were 65 (84.4%), 17 (22.1%), and 1 (1.3%); and 64 (83.1%), 21 (27.3%), and 2 (2.6%), respectively. Overall treatment satisfaction was reported, including effectiveness and convenience. No unexpected safety findings were noted.
Conclusion
Adalimumab improved QoL and was well-tolerated in Korean patients with moderate to severe psoriasis, as demonstrated in a real-world setting. Clinical trial registration number (clinicaltrials.gov: NCT03099083).
10.Guselkumab Treatment for Psoriasis in Bio-Naïve and Bio-Experienced Patients:Multicenter Study Based on a 1-Year Follow-Up
Seona OH ; Su Min LEE ; Byeong Chang KO ; Jung Eun SEOL ; Un Ha LEE ; Myoung-Shin KIM ; So Young JUNG ; Minkyung OH ; Hai-Jin PARK
Korean Journal of Dermatology 2023;61(5):265-274
Background:
Guselkumab is a monoclonal antibody that selectively blocks the p19 subunit of interleukin-23. It has shown good efficacy and safety profile in several clinical trials of plaque psoriasis. However, studies on the efficacy of guselkumab in patients treated with other biologics are lacking.
Objective:
We aimed to investigate the efficacy and safety profile of guselkumab in patients with moderate-to-severe plaque psoriasis. We also compared the efficacy of guselkumab between biologic-naïve (Bio-Naïve) and biologicexperienced (Bio-Ex) patients.
Methods:
This multicenter, retrospective study included 72 patients treated with guselkumab. The patients’ clinical characteristics and psoriasis area and severity index (PASI) scores were recorded at each visit. The PASI90 and PASI100 responses and mean PASI scores were compared between the Bio-Naïve and Bio-Ex groups.
Results:
Fifty-five Bio-Naïve patients and 17 Bio-Ex patients were included in the study. At week 20, there were no significant differences in the PASI90 (64.2% vs. 53.8%) and PASI100 (28.3% vs. 15.4%) responses between the groups. However, at weeks 36 and 44, the PASI90 response (week 36: 89.2% vs. 36.4% and week 44: 97.8% vs. 63.6%) and the PASI100 response (week 36: 64.9% vs. 18.2% and week 44: 68.9% vs. 27.3%) were significantly higher in the Bio-Naïve group (p<0.05). There were no differences in PASI90 and PASI100 responses between the groups in terms of other clinical characteristics and comorbidities at week 20.
Conclusion
The efficacy of guselkumab remained consistent among patients in whom other biologics had failed. However, the efficacy was slightly lower in the Bio-Ex group than in the Bio-Naïve group.

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