1.Adherence of PARP inhibitor for frontline maintenance therapy in primary epithelial ovarian cancer:a cross-sectional survey
Ji Hyun KIM ; Yumi LEE ; Da-Young KIM ; Sinae KIM ; Sang-Soo SEO ; Sokbom KANG ; Sang-Yoon PARK ; Myong Cheol LIM
Journal of Gynecologic Oncology 2024;35(1):e3-
Objective:
To identify the adherence rate to poly (ADP-ribose) polymerase (PARP) inhibitors and identify factors contributing to the deterioration of adherence at our institution.
Methods:
The adherence rate to PARP inhibitors was calculated using self-reported Adherence to Refills and Medications Scale questionnaires from a cross-sectional survey. Multivariable logistic regression analysis was performed to identify the factors that affected adherence.
Results:
Of the 131 respondents, 32 (24.4%) showed non-adherence to PARP inhibitors.In the multivariable logistic regression analysis, unemployed or retired status (odds ratio [OR]=4.878; 95% confidence interval [CI]=1.528–15.572; p=0.008), patients receiving niraparib (OR=3.387; 95% CI=1.283–8.940; p=0.014), and a lower score on the quality-oflife assessment (EORTC-QLQ-OV28), which reflects a better quality of life (QOC) with a lower symptom burden (OR=1.056; 95% CI=1.027–1.086; p<0.001) were associated with high adherence to PARP inhibitors.
Conclusion
Approximately one-fourth of patients with ovarian cancer are non-adherent to PARP inhibitors as maintenance treatment for newly diagnosed advanced ovarian cancer. The occupational status, type of PARP inhibitor, and QOC may affect adherence to PARP inhibitors.
2.Current treatment strategies for ovarian cancer in the East Asian Gynecologic Oncology Trial Group (EAGOT)
Yusuke KOBAYASHI ; Muneaki SHIMADA ; Masato TAMATE ; Hyun Woong CHO ; Jun ZHU ; Hung-Hsueh CHOU ; Hiroaki KAJIYAMA ; Aikou OKAMOTO ; Daisuke AOKI ; Sokbom KANG ; Jeong-Won LEE ; Jae-Weon KIM ; Jae-Hoon KIM ; Zhongqiu LIN ; Jihong LIN ; Xiaohua WU ; Hung-Cheng LAI ; Ting-Chang CHANG ; Chyong-Huey LAI ; Yong Man KIM ; Takayuki ENOMOTO
Journal of Gynecologic Oncology 2024;35(3):e87-
Ovarian cancer, notable for its severe prognosis among gynecologic cancers, has seen substantial progress in treatment approaches recently. Enhanced protocols in chemotherapy and the introduction of poly (ADP-ribose) polymerase (PARP) inhibitors for maintenance therapy have markedly improved outcomes for patients with specific genetic profiles, such as those positive for BRCA mutations or exhibiting homologous recombination deficiency (HRD). Additionally, the method of intraperitoneal chemotherapy administration has emerged as a valuable alternative to traditional transvenous routes, showing promise for wider clinical adoption. The field of surgery has also evolved, with increasing exploration into the benefits and feasibility of laparoscopic methods over more invasive traditional surgeries, aiming for complete tumor removal but with reduced patient impact. The hereditary nature of ovarian cancer underscores the importance of genetic testing, which has become integral in tailoring treatment strategies, particularly in determining suitability for PARP inhibitors.The formation of the East Asian Gynecologic Oncology Trial Group (EAGOT) aims to optimize treatment across Japan, Korea, China, and Taiwan. The ovarian cancer committee of EAGOT shared the current policies, focusing on 5 topics: 1) strategies for maintenance therapy after initial surgery and chemotherapy, 2) drug regimens for platinum-sensitive and platinum-resistant recurrence, 3) intraperitoneal chemotherapy, 4) laparoscopic surgery as an alternative to laparotomy, and 5) current status of genetic testing (BRCA, HRD, and panel tests) for ovarian cancer and its prospects. EAGOT’s multi-national trials aim to harmonize these evolving treatment strategies, ensuring that the latest and most effective protocols are accessible across the region, thereby significantly impacting patient outcomes in East Asia.
3.Adherence of PARP inhibitor for frontline maintenance therapy in primary epithelial ovarian cancer:a cross-sectional survey
Ji Hyun KIM ; Yumi LEE ; Da-Young KIM ; Sinae KIM ; Sang-Soo SEO ; Sokbom KANG ; Sang-Yoon PARK ; Myong Cheol LIM
Journal of Gynecologic Oncology 2024;35(1):e3-
Objective:
To identify the adherence rate to poly (ADP-ribose) polymerase (PARP) inhibitors and identify factors contributing to the deterioration of adherence at our institution.
Methods:
The adherence rate to PARP inhibitors was calculated using self-reported Adherence to Refills and Medications Scale questionnaires from a cross-sectional survey. Multivariable logistic regression analysis was performed to identify the factors that affected adherence.
Results:
Of the 131 respondents, 32 (24.4%) showed non-adherence to PARP inhibitors.In the multivariable logistic regression analysis, unemployed or retired status (odds ratio [OR]=4.878; 95% confidence interval [CI]=1.528–15.572; p=0.008), patients receiving niraparib (OR=3.387; 95% CI=1.283–8.940; p=0.014), and a lower score on the quality-oflife assessment (EORTC-QLQ-OV28), which reflects a better quality of life (QOC) with a lower symptom burden (OR=1.056; 95% CI=1.027–1.086; p<0.001) were associated with high adherence to PARP inhibitors.
Conclusion
Approximately one-fourth of patients with ovarian cancer are non-adherent to PARP inhibitors as maintenance treatment for newly diagnosed advanced ovarian cancer. The occupational status, type of PARP inhibitor, and QOC may affect adherence to PARP inhibitors.
4.Current treatment strategies for ovarian cancer in the East Asian Gynecologic Oncology Trial Group (EAGOT)
Yusuke KOBAYASHI ; Muneaki SHIMADA ; Masato TAMATE ; Hyun Woong CHO ; Jun ZHU ; Hung-Hsueh CHOU ; Hiroaki KAJIYAMA ; Aikou OKAMOTO ; Daisuke AOKI ; Sokbom KANG ; Jeong-Won LEE ; Jae-Weon KIM ; Jae-Hoon KIM ; Zhongqiu LIN ; Jihong LIN ; Xiaohua WU ; Hung-Cheng LAI ; Ting-Chang CHANG ; Chyong-Huey LAI ; Yong Man KIM ; Takayuki ENOMOTO
Journal of Gynecologic Oncology 2024;35(3):e87-
Ovarian cancer, notable for its severe prognosis among gynecologic cancers, has seen substantial progress in treatment approaches recently. Enhanced protocols in chemotherapy and the introduction of poly (ADP-ribose) polymerase (PARP) inhibitors for maintenance therapy have markedly improved outcomes for patients with specific genetic profiles, such as those positive for BRCA mutations or exhibiting homologous recombination deficiency (HRD). Additionally, the method of intraperitoneal chemotherapy administration has emerged as a valuable alternative to traditional transvenous routes, showing promise for wider clinical adoption. The field of surgery has also evolved, with increasing exploration into the benefits and feasibility of laparoscopic methods over more invasive traditional surgeries, aiming for complete tumor removal but with reduced patient impact. The hereditary nature of ovarian cancer underscores the importance of genetic testing, which has become integral in tailoring treatment strategies, particularly in determining suitability for PARP inhibitors.The formation of the East Asian Gynecologic Oncology Trial Group (EAGOT) aims to optimize treatment across Japan, Korea, China, and Taiwan. The ovarian cancer committee of EAGOT shared the current policies, focusing on 5 topics: 1) strategies for maintenance therapy after initial surgery and chemotherapy, 2) drug regimens for platinum-sensitive and platinum-resistant recurrence, 3) intraperitoneal chemotherapy, 4) laparoscopic surgery as an alternative to laparotomy, and 5) current status of genetic testing (BRCA, HRD, and panel tests) for ovarian cancer and its prospects. EAGOT’s multi-national trials aim to harmonize these evolving treatment strategies, ensuring that the latest and most effective protocols are accessible across the region, thereby significantly impacting patient outcomes in East Asia.
5.Adherence of PARP inhibitor for frontline maintenance therapy in primary epithelial ovarian cancer:a cross-sectional survey
Ji Hyun KIM ; Yumi LEE ; Da-Young KIM ; Sinae KIM ; Sang-Soo SEO ; Sokbom KANG ; Sang-Yoon PARK ; Myong Cheol LIM
Journal of Gynecologic Oncology 2024;35(1):e3-
Objective:
To identify the adherence rate to poly (ADP-ribose) polymerase (PARP) inhibitors and identify factors contributing to the deterioration of adherence at our institution.
Methods:
The adherence rate to PARP inhibitors was calculated using self-reported Adherence to Refills and Medications Scale questionnaires from a cross-sectional survey. Multivariable logistic regression analysis was performed to identify the factors that affected adherence.
Results:
Of the 131 respondents, 32 (24.4%) showed non-adherence to PARP inhibitors.In the multivariable logistic regression analysis, unemployed or retired status (odds ratio [OR]=4.878; 95% confidence interval [CI]=1.528–15.572; p=0.008), patients receiving niraparib (OR=3.387; 95% CI=1.283–8.940; p=0.014), and a lower score on the quality-oflife assessment (EORTC-QLQ-OV28), which reflects a better quality of life (QOC) with a lower symptom burden (OR=1.056; 95% CI=1.027–1.086; p<0.001) were associated with high adherence to PARP inhibitors.
Conclusion
Approximately one-fourth of patients with ovarian cancer are non-adherent to PARP inhibitors as maintenance treatment for newly diagnosed advanced ovarian cancer. The occupational status, type of PARP inhibitor, and QOC may affect adherence to PARP inhibitors.
6.Current treatment strategies for ovarian cancer in the East Asian Gynecologic Oncology Trial Group (EAGOT)
Yusuke KOBAYASHI ; Muneaki SHIMADA ; Masato TAMATE ; Hyun Woong CHO ; Jun ZHU ; Hung-Hsueh CHOU ; Hiroaki KAJIYAMA ; Aikou OKAMOTO ; Daisuke AOKI ; Sokbom KANG ; Jeong-Won LEE ; Jae-Weon KIM ; Jae-Hoon KIM ; Zhongqiu LIN ; Jihong LIN ; Xiaohua WU ; Hung-Cheng LAI ; Ting-Chang CHANG ; Chyong-Huey LAI ; Yong Man KIM ; Takayuki ENOMOTO
Journal of Gynecologic Oncology 2024;35(3):e87-
Ovarian cancer, notable for its severe prognosis among gynecologic cancers, has seen substantial progress in treatment approaches recently. Enhanced protocols in chemotherapy and the introduction of poly (ADP-ribose) polymerase (PARP) inhibitors for maintenance therapy have markedly improved outcomes for patients with specific genetic profiles, such as those positive for BRCA mutations or exhibiting homologous recombination deficiency (HRD). Additionally, the method of intraperitoneal chemotherapy administration has emerged as a valuable alternative to traditional transvenous routes, showing promise for wider clinical adoption. The field of surgery has also evolved, with increasing exploration into the benefits and feasibility of laparoscopic methods over more invasive traditional surgeries, aiming for complete tumor removal but with reduced patient impact. The hereditary nature of ovarian cancer underscores the importance of genetic testing, which has become integral in tailoring treatment strategies, particularly in determining suitability for PARP inhibitors.The formation of the East Asian Gynecologic Oncology Trial Group (EAGOT) aims to optimize treatment across Japan, Korea, China, and Taiwan. The ovarian cancer committee of EAGOT shared the current policies, focusing on 5 topics: 1) strategies for maintenance therapy after initial surgery and chemotherapy, 2) drug regimens for platinum-sensitive and platinum-resistant recurrence, 3) intraperitoneal chemotherapy, 4) laparoscopic surgery as an alternative to laparotomy, and 5) current status of genetic testing (BRCA, HRD, and panel tests) for ovarian cancer and its prospects. EAGOT’s multi-national trials aim to harmonize these evolving treatment strategies, ensuring that the latest and most effective protocols are accessible across the region, thereby significantly impacting patient outcomes in East Asia.
7.Regional disparities in the availability of cancer clinical trials in Korea
Jieun JANG ; Wonyoung CHOI ; Sung Hoon SIM ; Sokbom KANG
Epidemiology and Health 2024;46(1):e2024006-
OBJECTIVES:
Unequal access to cancer clinical trials is an important issue, given the potential benefits of participation for cancer patients. We evaluated regional disparities in access to cancer clinical trials in Korea.
METHODS:
From the Ministry of Food and Drug Safety database, we extracted 2,465 records of all cancer clinical trials approved between January 2012 and April 2023. To measure disparities in cancer clinical trial access, we calculated the ratio of clinical trials open to non-capital areas relative to those open to capital areas. We then analyzed temporal trends in this ratio, which we termed the trial geographical equity index (TGEI).
RESULTS:
Disparities in access to cancer clinical trials, as indicated by the TGEI, did not significantly improve during the study period (regression coefficient, 0.002; p=0.59). However, for phase II/III trials sponsored by global pharmaceutical companies, the TGEI improved significantly (regression coefficient, 0.021; p<0.01). In contrast, the TGEI deteriorated for trials initiated by investigators or those testing domestically developed therapeutics (regression coefficient, -0.015; p=0.05). Furthermore, the increasing trend of TGEI for phase II/III trials sponsored by global companies began to reverse after 2019, coinciding with the outbreak of coronavirus disease 2019 (COVID-19).
CONCLUSIONS
Over the past decade, access to cancer clinical trials has improved in Korea, particularly for phase II/III trials evaluating therapeutics from global companies. However, this increase in accessibility has not extended to trials initiated by investigators or those assessing domestically developed therapeutics. Additionally, the impact of COVID-19 on disparities in clinical trial access should be closely monitored.
8.Uptake of Family-Specific Mutation Genetic Testing Among Relatives of Patients with Ovarian Cancer with BRCA1 or BRCA2 Mutation
Go Woon JEONG ; Wonkyo SHIN ; Dong Ock LEE ; Sang-Soo SEO ; Sokbom KANG ; Sang-Yoon PARK ; Myong Cheol LIM
Cancer Research and Treatment 2021;53(1):207-211
Purpose:
The BRCA1 or BRCA2 gene is transmitted in an autosomal dominant fashion, and genetic testing of first-degree relatives of patients with family-specific mutation (FSM) is recommended. This study examined factors affecting the uptake of FSM testing among relatives of patients with peritoneal, ovarian, or fallopian tube (POFT) cancer with confirmed BRCA1 or BRCA2 germline mutation.
Materials and Methods:
Data from medical charts of 392 eligible patients and their relatives who had undergone outpatient genetic counseling/testing were retrospectively reviewed. Clinical factors were compared between family members who had and had not undergone genetic counseling/testing.
Results:
The uptake of FSM testing was 30.5% (129/423) among first-degree living relatives and 53.5% (69/129) within the overall family unit. The average time from genetic testing of the proband to the first FSM test within a family was 168 days (range, 23 to 681 days). Having a living father (33.8% vs. 13.3%, p=0.007) and daughter (79.4% vs. 60.3%, p=0.019) increased the uptake of FSM testing. FSM testing was more likely among female than among male relatives of cancer patients (40.9% vs. 17.6%, p < 0.001).
Conclusion
Approximately one-third of first-degree relatives of patients with a POFT cancer with BRCA1 or BRCA2 mutation underwent FSM testing. Having a living father or daughter was a factor affecting the uptake of FSM testing, which was higher among female than among male relatives of the proband. This discrepancy might be due to a misconception that the BRCA gene is associated with women rather than with men.
9.Survival Effects of Cytoreductive Surgery for Refractory Patients after Neoadjuvant Chemotherapy in Advanced Epithelial Ovarian Cancer
Wonkyo SHIN ; Joseph J. NOH ; Sang-Soo SEO ; Sokbom KANG ; Chel-Hun CHOI ; Sang-Yoon PARK ; Byoung-Gie KIM ; Myong Cheol LIM
Yonsei Medical Journal 2020;61(11):935-941
Purpose:
Salvage second-line chemotherapy is usually recommended for patients with advanced epithelial ovarian cancer (AEOC) who develop progressive disease (PD) after neoadjuvant chemotherapy (NAC). Herein, we investigated the role of cytoreductive surgery (CRS) for such patients.
Materials and Methods:
We retrospectively reviewed the medical records of 36 patients with AEOC who developed PD after receiving NAC at two tertiary academic centers with different treatment strategies between 2001 and 2016. Patients who developed PD after NAC were consistently treated with CRS at one hospital (group A; n=13) and second-line chemotherapy at another (group B;n=23). The clinical characteristics and treatment outcomes were compared between the groups.
Results:
Overall survival (OS) was longer in group A than in group B (19.4 months vs. 7.9 months; p=0.011). High-grade serous histology was associated with longer OS than non-high-grade serous types. In group A, optimal surgery resection (<1 cm) was achieved after CRS in 6 patients (46%). Multivariate analysis showed that the treatment option was the only independent predictive factor for OS (hazard ratio, 2.30; 95% confidence interval, 1.02–5.17; p=0.044).
Conclusion
CRS may result in a survival benefit even in patients with AEOC who develop PD after NAC.
10.Comparing prediction models for lymph node metastasis risk in endometrial cancer: the winner may not take it all.
Journal of Gynecologic Oncology 2017;28(6):e92-
No abstract available.
Endometrial Neoplasms*
;
Female
;
Lymph Nodes*
;
Neoplasm Metastasis*

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