1.A Multicentre, Multinational, Open-Label, 52-Week Extension Study of Gemigliptin (LC15-0444) Monotherapy in Patients with Type 2 Diabetes Mellitus
Sae Jeong YANG ; Kyung Wan MIN ; Sandeep Kumar GUPTA ; Joong Yeol PARK ; Vyankatesh K.SHIVANE ; Pankaj Kumar AGARWAL ; Doo Man KIM ; Yong Esong KIM ; Sei Hyun BAIK
Diabetes & Metabolism Journal 2021;45(4):606-612
The purpose of this extension study was to assess the long-term efficacy and safety of gemigliptin 50 mg in patients with type 2 diabetes mellitus (T2DM). Patients with T2DM who had completed the initial 24-week study comparing gemigliptin monotherapy with placebo were eligible to enrol. In the open-label, 28-week extension study, all enrolled patients received gemigliptin, regardless of the treatment received during the initial 24-week study period. The mean reduction±standard deviation (SD) in glycosylated hemoglobin (HbA1c) observed after 24 weeks of treatment (–0.6%±1.1%) was further decreased for the gemi-gemi group and the mean change in HbA1c at week 52 from baseline was –0.9%±1.2% (P<0.0001). For the pbo-gemi group, HbA1c decreased after they were switched to gemigliptin, and the mean change in HbA1c at week 52 from baseline was –0.7%±1.2% (P<0.0001). Furthermore, the overall incidence of adverse events demonstrated that gemigliptin was safe and well tolerated up to 52 weeks.
2.Clinical Outcomes Following Letrozole Treatment according to Estrogen Receptor Expression in Postmenopausal Women: LETTER Study (KBCSG-006)
Sung Gwe AHN ; Seok Jin NAM ; Sei Hyun AHN ; Yongsik JUNG ; Heung Kyu PARK ; Soo Jung LEE ; Sung Soo KANG ; Wonshik HAN ; Kyong Hwa PARK ; Yong Lai PARK ; Jihyoun LEE ; Hyun Jo YOUN ; Jun Hyun KIM ; Youngbum YOO ; Jeong-Yoon SONG ; Byung Kyun KO ; Geumhee GWAK ; Min Sung CHUNG ; Sung Yong KIM ; Seo Heon CHO ; Doyil KIM ; Myung-Chul CHANG ; Byung In MOON ; Lee Su KIM ; Sei Joong KIM ; Min Ho PARK ; Tae Hyun KIM ; Jihyoung CHO ; Cheol Wan LIM ; Young Tae BAE ; Gyungyub GONG ; Young Kyung BAE ; Ahwon LEE ; Joon JEONG
Journal of Breast Cancer 2021;24(2):164-174
Purpose:
In this trial, we investigated the efficacy and safety of adjuvant letrozole for hormone receptor (HR)-positive breast cancer. Here, we report the clinical outcome in postmenopausal women with HR-positive breast cancer treated with adjuvant letrozole according to estrogen receptor (ER) expression levels.
Methods:
In this multi-institutional, open-label, observational study, postmenopausal patients with HR-positive breast cancer received adjuvant letrozole (2.5 mg/daily) for 5 years unless they experienced disease progression or unacceptable toxicity or withdrew their consent. The patients were stratified into the following 3 groups according to ER expression levels using a modified Allred score (AS): low, intermediate, and high (AS 3–4, 5–6, and 7–8, respectively). ER expression was centrally reviewed. The primary objective was the 5-year disease-free survival (DFS) rate.
Results:
Between April 25, 2010, and February 5, 2014, 440 patients were enrolled. With a median follow-up of 62.0 months, the 5-year DFS rate in all patients was 94.2% (95% confidence interval [CI], 91.8–96.6). The 5-year DFS and recurrence-free survival (RFS) rates did not differ according to ER expression; the 5-year DFS rates were 94.3% and 94.1%in the low-to-intermediate and high expression groups, respectively (p = 0.6), and the corresponding 5-year RFS rates were 95.7% and 95.4%, respectively (p = 0.7). Furthermore, 25 patients discontinued letrozole because of drug toxicity.
Conclusion
Treatment with adjuvant letrozole showed very favorable treatment outcomes and good tolerability among Korean postmenopausal women with ER-positive breast cancer, independent of ER expression.
3.A Multicentre, Multinational, Open-Label, 52-Week Extension Study of Gemigliptin (LC15-0444) Monotherapy in Patients with Type 2 Diabetes Mellitus
Sae Jeong YANG ; Kyung Wan MIN ; Sandeep Kumar GUPTA ; Joong Yeol PARK ; Vyankatesh K.SHIVANE ; Pankaj Kumar AGARWAL ; Doo Man KIM ; Yong Esong KIM ; Sei Hyun BAIK
Diabetes & Metabolism Journal 2021;45(4):606-612
The purpose of this extension study was to assess the long-term efficacy and safety of gemigliptin 50 mg in patients with type 2 diabetes mellitus (T2DM). Patients with T2DM who had completed the initial 24-week study comparing gemigliptin monotherapy with placebo were eligible to enrol. In the open-label, 28-week extension study, all enrolled patients received gemigliptin, regardless of the treatment received during the initial 24-week study period. The mean reduction±standard deviation (SD) in glycosylated hemoglobin (HbA1c) observed after 24 weeks of treatment (–0.6%±1.1%) was further decreased for the gemi-gemi group and the mean change in HbA1c at week 52 from baseline was –0.9%±1.2% (P<0.0001). For the pbo-gemi group, HbA1c decreased after they were switched to gemigliptin, and the mean change in HbA1c at week 52 from baseline was –0.7%±1.2% (P<0.0001). Furthermore, the overall incidence of adverse events demonstrated that gemigliptin was safe and well tolerated up to 52 weeks.
4.Clinical Outcomes Following Letrozole Treatment according to Estrogen Receptor Expression in Postmenopausal Women: LETTER Study (KBCSG-006)
Sung Gwe AHN ; Seok Jin NAM ; Sei Hyun AHN ; Yongsik JUNG ; Heung Kyu PARK ; Soo Jung LEE ; Sung Soo KANG ; Wonshik HAN ; Kyong Hwa PARK ; Yong Lai PARK ; Jihyoun LEE ; Hyun Jo YOUN ; Jun Hyun KIM ; Youngbum YOO ; Jeong-Yoon SONG ; Byung Kyun KO ; Geumhee GWAK ; Min Sung CHUNG ; Sung Yong KIM ; Seo Heon CHO ; Doyil KIM ; Myung-Chul CHANG ; Byung In MOON ; Lee Su KIM ; Sei Joong KIM ; Min Ho PARK ; Tae Hyun KIM ; Jihyoung CHO ; Cheol Wan LIM ; Young Tae BAE ; Gyungyub GONG ; Young Kyung BAE ; Ahwon LEE ; Joon JEONG
Journal of Breast Cancer 2021;24(2):164-174
Purpose:
In this trial, we investigated the efficacy and safety of adjuvant letrozole for hormone receptor (HR)-positive breast cancer. Here, we report the clinical outcome in postmenopausal women with HR-positive breast cancer treated with adjuvant letrozole according to estrogen receptor (ER) expression levels.
Methods:
In this multi-institutional, open-label, observational study, postmenopausal patients with HR-positive breast cancer received adjuvant letrozole (2.5 mg/daily) for 5 years unless they experienced disease progression or unacceptable toxicity or withdrew their consent. The patients were stratified into the following 3 groups according to ER expression levels using a modified Allred score (AS): low, intermediate, and high (AS 3–4, 5–6, and 7–8, respectively). ER expression was centrally reviewed. The primary objective was the 5-year disease-free survival (DFS) rate.
Results:
Between April 25, 2010, and February 5, 2014, 440 patients were enrolled. With a median follow-up of 62.0 months, the 5-year DFS rate in all patients was 94.2% (95% confidence interval [CI], 91.8–96.6). The 5-year DFS and recurrence-free survival (RFS) rates did not differ according to ER expression; the 5-year DFS rates were 94.3% and 94.1%in the low-to-intermediate and high expression groups, respectively (p = 0.6), and the corresponding 5-year RFS rates were 95.7% and 95.4%, respectively (p = 0.7). Furthermore, 25 patients discontinued letrozole because of drug toxicity.
Conclusion
Treatment with adjuvant letrozole showed very favorable treatment outcomes and good tolerability among Korean postmenopausal women with ER-positive breast cancer, independent of ER expression.
5.Efficacy and Safety of Voglibose Plus Metformin in Patients with Type 2 Diabetes Mellitus: A Randomized Controlled Trial
Tae Jung OH ; Jae Myung YU ; Kyung Wan MIN ; Hyun Shik SON ; Moon Kyu LEE ; Kun Ho YOON ; Young Duk SONG ; Joong Yeol PARK ; In Kyung JEONG ; Bong Soo CHA ; Yong Seong KIM ; Sei Hyun BAIK ; In Joo KIM ; Doo Man KIM ; Sung Rae KIM ; Kwan Woo LEE ; Jeong Hyung PARK ; In Kyu LEE ; Tae Sun PARK ; Sung Hee CHOI ; Sung Woo PARK
Diabetes & Metabolism Journal 2019;43(3):276-286
BACKGROUND: Combination of metformin to reduce the fasting plasma glucose level and an α-glucosidase inhibitor to decrease the postprandial glucose level is expected to generate a complementary effect. We compared the efficacy and safety of a fixed-dose combination of voglibose plus metformin (vogmet) with metformin monotherapy in drug-naïve newly-diagnosed type 2 diabetes mellitus. METHODS: A total of 187 eligible patients aged 20 to 70 years, with a glycosylated hemoglobin (HbA1c) level of 7.0% to 11.0%, were randomized into either vogmet or metformin treatments for 24 weeks. A change in the HbA1c level from baseline was measured at week 24. RESULTS: The reduction in the levels of HbA1c was −1.62%±0.07% in the vogmet group and −1.31%±0.07% in the metformin group (P=0.003), and significantly more vogmet-treated patients achieved the target HbA1c levels of <6.5% (P=0.002) or <7% (P=0.039). Glycemic variability was also significantly improved with vogmet treatment, estimated by M-values (P=0.004). Gastrointestinal adverse events and hypoglycemia (%) were numerically lower in the vogmet-treated group. Moreover, a significant weight loss was observed with vogmet treatment compared with metformin (−1.63 kg vs. −0.86 kg, P=0.039). CONCLUSION: Vogmet is a safe antihyperglycemic agent that controls blood glucose level effectively, yields weight loss, and is superior to metformin in terms of various key glycemic parameters without increasing the risk of hypoglycemia.
Blood Glucose
;
Diabetes Mellitus, Type 2
;
Fasting
;
Glucose
;
Hemoglobin A, Glycosylated
;
Humans
;
Hypoglycemia
;
Metformin
;
Weight Loss
6.Recurrent Ipsilateral Breast Sparganosis: A Case Report
Jong hyuk AHN ; Jin Yook YI ; Sei Joong KIM ; Min Hee HUR
Journal of Breast Disease 2019;7(2):113-116
Sparganosis is a rare parasitic infection that can infect the abdominal wall, extremities, urogenital system, and/or central nervous system. Because the incidence of sparganosis is less than 2% of all reported cases of sparganosis, early diagnosis of sparganosis is difficult. Breast sparganosis has characteristic radiologic findings. Complete surgical removal is the treatment of choice and has the benefit of producing a definite diagnosis. Herein, we would report a case of recurrent breast sparganosis that occurred two years after surgical excision of worms from the ipsilateral breast.
7.Comparative Study between Sentinel Lymph Node Biopsy and Axillary Dissection in Patients with One or Two Lymph Node Metastases.
Jina LEE ; Jung Eun CHOI ; Sei Joong KIM ; Sae Byul LEE ; Min Ki SEONG ; Joon JEONG ; Chan Seok YOON ; Bong Kyun KIM ; Woo Young SUN
Journal of Breast Cancer 2018;21(3):306-314
PURPOSE: Sentinel lymph node biopsy (SLNB) is a standard axillary surgery in early breast cancer. If the SLNB result is positive, subsequent axillary lymph node dissection (ALND) is a routine procedure. In 2011, the American College of Surgeons Oncology Group Z0011 trial revealed that ALND may not be necessary in early breast cancer with one or two positive sentinel lymph nodes. The purpose of this study was to compare outcomes among Korean patients with one or two positive axillary lymph nodes in the final pathology who did and did not undergo ALND. METHODS: A total of 131,717 patients from the Korea Breast Cancer Society registry database received breast cancer surgery from January 1995 to December 2014. Inclusion criteria were T stage 1 or 2, one or two positive lymph nodes, and having received breast-conserving surgery (BCS), whole breast radiation therapy, and no neoadjuvant therapy. We analyzed the differences in disease-specific survival (DSS) and overall survival (OS) between patients who received SLNB only and those who underwent SLNB+ALND. RESULTS: A total 4,442 patients met the inclusion criteria, with 1,268 (28.6%) in the SLNB group and 3,174 (71.4%) in the SLNB+ALND group. There were no differences in DSS and OS between the two groups (p=0.378 and p=0.925, respectively). The number of patients who underwent SLNB alone for one or two positive lymph nodes increased continuously from 2004 to 2014. CONCLUSION: Korean patients with early breast cancer and 1 or 2 positive axillary lymph nodes who received BCS plus SLNB showed no significant difference in DSS and OS regardless of whether they received ALND. The findings of this retrospective study demonstrate that omitting ALND can be considered when treating selected patients with early breast cancer who have one or two positive lymph nodes.
Breast
;
Breast Neoplasms
;
Humans
;
Korea
;
Lymph Node Excision
;
Lymph Nodes*
;
Lymphatic Metastasis
;
Mastectomy, Segmental
;
Neoadjuvant Therapy
;
Neoplasm Metastasis*
;
Pathology
;
Retrospective Studies
;
Sentinel Lymph Node Biopsy*
;
Surgeons
8.Increased Risk of Exacerbation in Asthma Predominant Asthma–Chronic Obstructive Pulmonary Disease Overlap Syndrome.
Jisoo PARK ; Eun Kyung KIM ; Mi Ae KIM ; Tae Hyung KIM ; Jung Hyun CHANG ; Yon Ju RYU ; Sei Won LEE ; Yeon Mok OH ; Suk Joong YONG ; Won Il CHOI ; Kwang Ha YOO ; Ji Hyun LEE
Tuberculosis and Respiratory Diseases 2018;81(4):289-298
BACKGROUND: Obstructive airway disease patients with increased variability of airflow and incompletely reversible airflow obstruction are often categorized as having asthma–chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS). ACOS is heterogeneous with two sub-phenotypes: asthma-ACOS and COPD-ACOS. The objective of this study was to determine the difference in risk of exacerbation between the two sub-phenotypes of ACOS. METHODS: A total of 223 patients exhibiting incompletely reversible airflow obstruction with increased variability (spirometrically defined ACOS) were enrolled. These patients were divided into asthma-ACOS and COPD-ACOS according to their physician's diagnosis and smoking history of 10 pack-years. Within-group comparisons were made for asthma-ACOS versus COPD-ACOS and light smokers versus heavy smokers. RESULTS: Compared to patients with COPD-ACOS, patients with asthma-ACOS experienced exacerbation more often despite their younger age, history of light smoking, and better lung function. While the light-smoking group showed better lung function, they made unscheduled outpatient clinic visits more frequently. On multivariate analysis, asthma-ACOS and poor inhaler compliance were significantly associated with more than two unscheduled clinic visits during the previous year. CONCLUSION: Spirometrically defined ACOS includes heterogeneous subgroups with different clinical features. Phenotyping of ACOS by physician's diagnosis could be significant in predicting future risk of exacerbation.
Ambulatory Care
;
Ambulatory Care Facilities
;
Asthma*
;
Compliance
;
Diagnosis
;
Humans
;
Lung
;
Lung Diseases, Obstructive*
;
Multivariate Analysis
;
Nebulizers and Vaporizers
;
Phenotype
;
Pulmonary Disease, Chronic Obstructive
;
Smoke
;
Smoking
9.Associations between gene expression profiles of invasive breast cancer and Breast Imaging Reporting and Data System MRI lexicon.
Ga Ram KIM ; You Jin KU ; Soon Gu CHO ; Sei Joong KIM ; Byung Soh MIN
Annals of Surgical Treatment and Research 2017;93(1):18-26
PURPOSE: To evaluate whether the Breast Imaging Reporting and Data System (BI-RADS) MRI lexicon could reflect the genomic information of breast cancers and to suggest intuitive imaging features as biomarkers. METHODS: Matched breast MRI data from The Cancer Imaging Archive and gene expression profile from The Cancer Genome Atlas of 70 invasive breast cancers were analyzed. Magnetic resonance images were reviewed according to the BI-RADS MRI lexicon of mass morphology. The cancers were divided into 2 groups of gene clustering by gene set enrichment an alysis. Clinicopathologic and imaging characteristics were compared between the 2 groups. RESULTS: The luminal subtype was predominant in the group 1 gene set and the triple-negative subtype was predominant in the group 2 gene set (55 of 56, 98.2% vs. 9 of 14, 64.3%). Internal enhancement descriptors were different between the 2 groups; heterogeneity was most frequent in group 1 (27 of 56, 48.2%) and rim enhancement was dominant in group 2 (10 of 14, 71.4%). In group 1, the gene sets related to mammary gland development were overexpressed whereas the gene sets related to mitotic cell division were overexpressed in group 2. CONCLUSION: We identified intuitive imaging features of breast MRI associated with distinct gene expression profiles using the standard imaging variables of BI-RADS. The internal enhancement pattern on MRI might reflect specific gene expression profiles of breast cancers, which can be recognized by visual distinction.
10.A case report of 29-year-old male patient with breast carcinoma
Shin Young PARK ; Young Up CHO ; Sei Joong KIM ; Min Hee HUR
Korean Journal of Clinical Oncology 2017;13(1):50-53
Male breast cancer is a rare disease, accounting for about 1% of all breast cancers. Little is known about the etiology of male breast cancer, especially developed in young man. Genetic and hormonal factors have been reported to be involved in its pathogenesis. But, less is known regarding the role of anthropometric or other endocrine risk factors. It's extremely rare for breast cancer to occur in young male patient because male breast cancer generally occur in old patients. A 29-year-old male was diagnosed with breast cancer in our institution who was with diabetes and obesity. There was no specific risk of genetic or hormonal factors for his breast cancer.
Adult
;
Breast Neoplasms
;
Breast Neoplasms, Male
;
Breast
;
Humans
;
Male
;
Obesity
;
Rare Diseases
;
Risk Factors

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