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  • Online Resource  (13)
  • American Society of Clinical Oncology (ASCO)  (13)
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  • Online Resource  (13)
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  • American Society of Clinical Oncology (ASCO)  (13)
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  • 1
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 34, No. 15_suppl ( 2016-05-20), p. e20544-e20544
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2016
    detail.hit.zdb_id: 2005181-5
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  • 2
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 30, No. 12 ( 2012-04-20), p. 1296-1303
    Abstract: To determine whether an Internet-based tailored education program is effective for disease-free cancer survivors with cancer-related fatigue (CRF). Patients and Methods We randomly assigned patients who had completed primary cancer treatment within the past 24 months in any of four Korean hospitals and had reported moderate to severe fatigue for at least 1 week to participate in a 12-week, Internet-based, individually tailored CRF education program or to receive routine care. We based the program on the CRF guidelines of the National Comprehensive Cancer Network (NCCN) and incorporated the transtheoretic model (TTM). At baseline and 12 weeks, we used the Brief Fatigue Inventory (BFI) and Fatigue Severity Scale (FSS) as primary outcomes and the Hospital Anxiety and Depression Scale (HADS) and European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire C30 (EORTC QLQ-C30) for secondary outcomes. Results We recruited 273 participants and randomly assigned 136 to the intervention group. Compared with the control group, the intervention group had an improvement in fatigue as shown by a significantly greater decrease in BFI global score (−0.66 points; 95% CI −1.04 to −0.27) and FSS total score (−0.49; 95% CI, −0.78 to −0.21). In secondary outcomes, the intervention group experienced a significantly greater decrease in HADS anxiety score (−0.90; 95% CI, −1.51 to −0.29) as well as global quality of life (5.22; 95% CI, 0.93 to 9.50) and several functioning scores of the EORTC QLQ-C30. Conclusion An Internet-based education program based on NCCN guidelines and TTM may help patients manage CRF.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2012
    detail.hit.zdb_id: 2005181-5
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  • 3
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 30, No. 3 ( 2012-01-20), p. 268-273
    Abstract: The ARTIST (Adjuvant Chemoradiation Therapy in Stomach Cancer) trial was the first study to our knowledge to investigate the role of postoperative chemoradiotherapy therapy in patients with curatively resected gastric cancer with D2 lymph node dissection. This trial was designed to compare postoperative treatment with capecitabine plus cisplatin (XP) versus XP plus radiotherapy with capecitabine (XP/XRT/XP). Patients and Methods The XP arm received six cycles of XP (capecitabine 2,000 mg/m 2 per day on days 1 to 14 and cisplatin 60 mg/m 2 on day 1, repeated every 3 weeks) chemotherapy. The XP/XRT/XP arm received two cycles of XP followed by 45-Gy XRT (capecitabine 1,650 mg/m 2 per day for 5 weeks) and two cycles of XP. Results Of 458 patients, 228 were randomly assigned to the XP arm and 230 to the XP/XRT/XP arm. Treatment was completed as planned by 75.4% of patients (172 of 228) in the XP arm and 81.7% (188 of 230) in the XP/XRT/XP arm. Overall, the addition of XRT to XP chemotherapy did not significantly prolong disease-free survival (DFS; P = .0862). However, in the subgroup of patients with pathologic lymph node metastasis at the time of surgery (n = 396), patients randomly assigned to the XP/XRT/XP arm experienced superior DFS when compared with those who received XP alone (P = .0365), and the statistical significance was retained at multivariate analysis (estimated hazard ratio, 0.6865; 95% CI, 0.4735 to 0.9952; P = .0471). Conclusion The addition of XRT to XP chemotherapy did not significantly reduce recurrence after curative resection and D2 lymph node dissection in gastric cancer. A subsequent trial (ARTIST-II) in patients with lymph node–positive gastric cancer is planned.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2012
    detail.hit.zdb_id: 2005181-5
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  • 4
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 38, No. 5 ( 2020-02-10), p. 434-443
    Abstract: The addition of ovarian function suppression (OFS) for 5 years to tamoxifen (TAM) for treatment of premenopausal patients with breast cancer after completion of chemotherapy has beneficial effects on disease-free survival (DFS). This study evaluated the efficacy of adding 2 years of OFS to TAM in patients with hormone receptor–positive breast cancer who remain in a premenopausal state or resume ovarian function after chemotherapy. PATIENTS AND METHODS We enrolled 1,483 premenopausal women (age ≤ 45 years) with estrogen receptor–positive breast cancer treated with definitive surgery after completing adjuvant or neoadjuvant chemotherapy. Ovarian function was assessed every 6 months for 2 years since enrollment on the basis of follicular-stimulating hormone levels and vaginal bleeding history. If ovarian function was confirmed to be premenopausal at each visit, the patient was randomly assigned to complete 5 years of TAM alone (TAM-only) group or 5 years of TAM with OFS for 2 years that involved monthly goserelin administration (TAM + OFS) group. DFS was defined from the time of enrollment to the time of the first event. RESULTS A total of 1,293 patients were randomly assigned, and 1,282 patients were eligible for analysis. The estimated 5-year DFS rate was 91.1% in the TAM + OFS group and 87.5% in the TAM-only group (hazard ratio, 0.69; 95% CI, 0.48 to 0.97; P = .033). The estimated 5-year overall survival rate was 99.4% in the TAM + OFS group and 97.8% in the TAM-only group (hazard ratio, 0.31; 95% CI, 0.10 to 0.94; P = .029). CONCLUSION The addition of 2 years of OFS to TAM significantly improved DFS compared with TAM alone in patients who remained premenopausal or resumed ovarian function after chemotherapy.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2020
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  • 5
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 36, No. 15_suppl ( 2018-05-20), p. 502-502
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2018
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  • 6
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 39, No. 26 ( 2021-09-10), p. 2903-2913
    Abstract: Adjuvant chemotherapy after D2 gastrectomy is standard for resectable locally advanced gastric cancer (LAGC) in Asia. Based on positive findings for perioperative chemotherapy in European phase III studies, the phase III PRODIGY study (ClinicalTrials.gov identifier: NCT01515748 ) investigated whether neoadjuvant docetaxel, oxaliplatin, and S-1 (DOS) followed by surgery and adjuvant S-1 could improve outcomes versus standard treatment in Korean patients with resectable LAGC. PATIENTS AND METHODS Patients 20-75 years of age, with Eastern Cooperative Oncology Group performance status 0-1, and with histologically confirmed primary gastric or gastroesophageal junction adenocarcinoma (clinical TNM staging: T2-3N+ or T4Nany) were randomly assigned to D2 surgery followed by adjuvant S-1 (40-60 mg orally twice a day, days 1-28 every 6 weeks for eight cycles; SC group) or neoadjuvant DOS (docetaxel 50 mg/m 2 , oxaliplatin 100 mg/m 2 intravenously day 1, S-1 40 mg/m 2 orally twice a day, days 1-14 every 3 weeks for three cycles) before D2 surgery, followed by adjuvant S-1 (CSC group). The primary objective was progression-free survival (PFS) with CSC versus SC. Two sensitivity analyses were performed: intent-to-treat and landmark PFS analysis. RESULTS Between January 18, 2012, and January 2, 2017, 266 patients were randomly assigned to CSC and 264 to SC at 18 Korean study sites; 238 and 246 patients, respectively, were treated (full analysis set). Follow-up was ongoing in 176 patients at data cutoff (January 21, 2019; median follow-up 38.6 months [interquartile range, 23.5-62.1]). CSC improved PFS versus SC (adjusted hazard ratio, 0.70; 95% CI, 0.52 to 0.95; stratified log-rank P = .023). Sensitivity analyses confirmed these findings. Treatments were well tolerated. Two grade 5 adverse events (febrile neutropenia and dyspnea) occurred during neoadjuvant treatment. CONCLUSION PRODIGY showed that neoadjuvant DOS chemotherapy, as part of perioperative chemotherapy, is effective and tolerable in Korean patients with LAGC.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2021
    detail.hit.zdb_id: 2005181-5
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  • 7
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 35, No. 15_suppl ( 2017-05-20), p. 4022-4022
    Abstract: 4022 Background: The clinical implications of microsatellite instability (MSI) in gastric cancer are unclear. We investigated the usefulness of MSI status as a predictor of prognosis and responsiveness to adjuvant chemotherapy in patients with stage II and III gastric cancer. Methods: Tumor specimens and clinical information were collected from patients enrolled in the CLASSIC trial, a randomized controlled study of capecitabine plus oxaliplatin-based adjuvant chemotherapy. Five mononucleotide markers were used to assess tumor MSI status. Results: Of 592 specimens, 36 (6.1%) were MSI-high (MSI-H), whereas others were MSI-low or microsatellite-stable (MSS). Among 286 patients not treated with adjuvant therapy, those with MSI-H tumors had a better 5-year disease-free survival rate than did those with MSI-low/MSS tumors (hazard ratio adjusted by age, sex, tumor grade, disease stage, tumor location: 0.244 [95% confidence interval, 0.069–0.867]; p = 0.0292). Among 306 patients who received adjuvant chemotherapy, MSI-H status did not correlate with better disease-free survival (adjusted hazard ratio: 0.561 [95% confidence interval, 0.190–1.654] ; p = 0.2946). Benefits from adjuvant chemotherapy differed by MSI status; although adjuvant chemotherapy improved disease-free survival among patients with MSI-low/MSS (adjusted hazard ratio: 0.634 [95% confidence interval, 0.485–0.828] ; p = 0.0008), no benefit was observed in the MSI-H group (adjusted hazard ratio: 1.877 [95% confidence interval, 0.284–12.390]; p = 0.5130). Conclusions: Among patients with stage II and III gastric cancer, a MSI-H status correlated with a favorable prognosis, and adjuvant chemotherapy benefited those with MSI-L/MSS tumors but not those with MSI-H tumors.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2017
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  • 8
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 31, No. 15_suppl ( 2013-05-20), p. 551-551
    Abstract: 551 Background: Although young age breast cancer represents poor prognosis, no definitive explanation could have been made for the phenomenon. A tumor proliferation marker Ki67 is known to be a marker for both prognosis and prediction for chemotherapy responsiveness, and its level varies widely depending on the breast cancer subtype. This study was aimed to analyze Ki67 in relationship with age in hormone receptor positive breast cancer patients. Methods: We retrospectively reviewed 9061 consecutive cases of hormone receptor positive invasive breast cancer from data base at Seoul National University Hospital (SNUH) (between 2000 and 2012), Samsung Medical Center (SMC) (between 2004 and 2010), and National Cancer Center (NCC) (between 2001 and 2010) in Korea. Patients with estrogen receptor (ER) or progesterone receptor (PR) positive tumors were included irrespective of HER2 amplification. A multicenter data of Ki67 level identified by immunohistochemistry (IHC) and age at diagnosis were analyzed. Patients who underwent neoadjuvant systemic therapy were excluded. Results: Total 6222 cases from SNUH, 976 from SMC and 1863 from NCC were included. The three datasets were analyzed separately due to variable IHC methods in each institute. Mean ages were 49.30 years (range 20-86), 47.75 years (range 22-81) and 45.31 years (range 25-59), and mean Ki67 levels were 4.66% (range 1-100), 22.98% (range 1-97) and 14.58% (range 1-90), at SNUH, SMC, NCC respectively. Ki67 level was inversely proportional with age at diagnosis in all three datasets, and the level was significantly higher for patients 〈 40 years compared to ≥40 years (mean Ki67: 5.97 vs 4.41, p 〈 0.001; 28.60 vs 21.88, p 〈 0.001; 17.01 vs 14.03, p 〈 0.001, respectively). There was an inverse relation with age as well when Ki67 level was categorized into ‘ 〈 10% vs ≥10% (p 〈 0.001)’, ‘ 〈 20% vs ≥20% (p=0.03)’ and ‘ 〈 14% vs ≥14% (p 〈 0.001)’ respectively. Conclusions: Despite the variability of assessing Ki67 expression, Ki67 level was significantly higher in young age hormone receptor positive breast cancer from all three analyses. This could partly explain the poor prognosis and substantial responsiveness to chemotherapy in this age group of patients.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2013
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  • 9
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 35, No. 4_suppl ( 2017-02-01), p. 164-164
    Abstract: 164 Background: Staging systems for cancer are critical to predict the prognosis of patients. Current staging systems for gastric cancer have limitations to predict individualized and precise prediction of patient’s survival after treatment. We aimed to develop prediction model based on deep learning by estimating the survival probability of patients who underwent gastrectomy. Methods: To predict the survival probability, we used a deep neural network model which consisted of 5 layers: input layer, 3 fully connected layer, and output layer with 8 characteristics (age, sex, histology, depth of tumor, number of metastatic and examined lymph node, presence of distant metastasis, and resection extent) of patients which was previously published Yonsei prediction model using Cox regression. Each layer functioned as the nonlinear weighted sum of lower layer. Five-year overall survival was predicted using the deep learning method and it was compared to Yonsei prediction model. The average area under the curve (AUC) was compared between the models. For internal validation, 5-fold cross validations were carried out. We also performed external validation with a dataset from another hospital (n = 1549). . Results: Deep learning predicted 5-year overall survival of patients with an average accuracy of 83.5% in the test set. The average AUC of deep learning by integrating 8 characteristics was significantly higher than that of Yonsei prediction model (AUC: 0.844 vs. 0.831, P 〈 0.001) with the same variables. In the external validation the average accuracy of survival prediction was 84.1%. The AUC was also greater in a dataset from other hospital in Korea (AUC: 0.852 vs. 0.847, P = 0.023) Conclusions: Prognosis prediction with deep learning showed superior survival predictive power compared to prediction model using Cox regression. It can provide individualized and precise stratification based on the risk using characteristics of gastric cancer patients.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2017
    detail.hit.zdb_id: 2005181-5
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  • 10
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 31, No. 15_suppl ( 2013-05-20), p. 2565-2565
    Abstract: 2565 Background: HM781-36B, a novel pan-HER tyrosine kinase inhibitor, showed potent in vitro and in vivo antitumor activities for EGFR mutant models including T790M mutation. In the previous 2-weeks on, 1-week off phase I study, the maximum tolerated dose (MTD) was determined as 24 mg/day. Phase I study with a continuous daily dosing schedule was conducted to determine the recommended dose (RD), and to assess the effect of food on pharmacokinetics (PK) in patients (pts) with advanced solid tumors. Methods: Eligible pts had advanced malignancies refractory to standard therapies. Standard 3+3 scheme was used in the dose escalation study, and additional 8 patients were enrolled to test food effects. Results: 20 pts (median age: 55 years [range32-77], M:F=13:7, ECOG PS 0/1/2/3 8/12/0/0) were enrolled (5 NSCLC, 4 colon cancer, 3 stomach cancer, 2 breast cancer, 2 rectal cancer, 2 common bile duct cancer, 1 pancreatic cancer and 1 esophageal cancer); 12 in the dose escalation and 8 in the food effect study cohort. Twelve pts were heavily pretreated(≥4 regimens). Dose limiting toxicities (DLTs) were G3 anorexia in 1 pt at 18mg/day, G3 diarrhea and anorexia in 1 pt, and drug compliance 〈 80% due to G2 adverse events in 1 pt at 24mg/day. The MTD was determined as 18 mg/day, and RD was determined as 16 mg/day. The most common drug-related adverse events were diarrhea, stomatitis, skin rash, paronychia, pruritus and anorexia. Among 16 evaluable pts, 4 achieved partial responses (PR)[1 NSCLC, 2 breast cancer, 1 common bile duct cancer], and the duration of response were 32, 40+, 21, and 8 weeks, respectively. Five pts had stable disease (SD). The median duration of treatment in pts with PR or SD was 33.5 weeks (range, 15-82). Under both fasted and fed condition, there were no significant differences of AUC last values, whereas C max values were lower in fed condition than in fasted condition. Conclusions: Continuous daily dosing schedule of HM781-36B is safe and well tolerated in advanced solid tumors. It exerts anticancer activity, without being influenced by food. Updated data will be presented at the meeting. Clinical trial information: NCT01455584.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2013
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