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  • American Society of Clinical Oncology (ASCO)  (71)
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  • American Society of Clinical Oncology (ASCO)  (71)
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  • 1
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 40, No. 33 ( 2022-11-20), p. 3868-3877
    Abstract: The combination of oxaliplatin and fluoropyrimidine for 6 months is one of the standard options for adjuvant therapy for high-risk stage II and III colorectal cancers (CRCs). The optimal duration of oxaliplatin to diminish neurotoxicity without compromising efficacy needs to be clarified. PATIENTS AND METHODS This open-label, randomized, phase III, noninferiority trial randomly assigned patients with high-risk stage II and III CRC to 3 and 6 months of oxaliplatin with 6 months of fluoropyrimidine groups (3- and 6-month arms, respectively). The primary end point was disease-free survival (DFS), and the noninferiority margin was a hazard ratio (HR) of 1.25. RESULTS In total, 1,788 patients were randomly assigned to the 6-month (n = 895) and 3-month (n = 893) arms, and 83.6% in the 6-month arm and 85.7% in the 3-month arm completed the treatment. The neuropathy rates with any grade were higher in the 6-month arm than in the 3-month arm (69.5% v 58.3%; P 〈 .0001). The 3-year DFS rates were 83.7% and 84.7% in the 6-month and 3-month arms, respectively, with an HR of 0.953 (95% CI, 0.769 to 1.180; test for noninferiority, P = .0065) within the noninferiority margin. Among patients with stage III CRC treated by capecitabine plus oxaliplatin, the 3-year DFS of the 3-month arm was noninferior as compared with that of the 6-month arm with an HR of 0.713 (95% CI, 0.530 to 0.959; P = .0009). However, among patients with high-risk stage II and stage III CRC treated by infusional fluorouracil, leucovorin, and oxaliplatin, the noninferiority of the 3-month arm compared with the 6-month arm was not proven. CONCLUSION This study suggests that adding 3 months of oxaliplatin to 6 months of capecitabine could be considered an alternative adjuvant treatment for stage III CRC (ClinicalTrials.gov identifier: NCT01092481 ).
    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: 2022
    detail.hit.zdb_id: 2005181-5
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  • 2
    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
    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. 15_suppl ( 2012-05-20), p. e14580-e14580
    Abstract: e14580 Background: TS-1 has shown good efficacy against unresectable advanced gastric cancer (AGC). Conventionally TS-1 containing chemotherapy (CTx) is performed on 5-weekly or 6-weekly basis. We lack robust evidence for the efficacy and safety of 3-weekly TS-1 containing CTx. In Korea, 3-weekly TS-1 containing CTx can be used as off-label under permission of Health Insurance Review and Assessment service (HIRA). We and HIRA conducted this study to confirm the efficacy and tolerability of 3-weekly TS-1 containing CTx in unresectable AGC. Methods: We retrospectively analyzed patients with unresectable AGC who received 3-weekly TS-1 containing CTx between June 2007 and January 2011. In 3-weekly TS-1 monotherapy, TS-1 40-60mg depending on patient’s body surface area was administered orally twice a day for 14 days followed by a 1-week rest every 3 weeks. In 3-weekly TS-1/cisplatin combination CTx, TS-1 40mg/m 2 was given orally twice a day for 14 days followed by 1-week rest and cisplatin 60 mg/m 2 on day 1 was given by intravenous infusion every 3 weeks. Results: A total of 1372 patients (TS-1 monotherapy: 265 (19.3%), TS-1/cisplatin : 1107 (80.7%)) were enrolled from 31 institutions. Response rate of 3-weekly TS-1 monotherapy was 18.1%. Progression-free survival (PFS) and overall survival (OS) were 5.2 months (95% C.I., 4.5-5.9) and 14.3 months (95% C.I., 10.6-17.9), respectively. Response rate of 3-weekly TS-1/cisplatin was 29.4%. PFS and OS of 3-weekly TS-1/cisplatin were 6.8 months (95% C.I., 6.3-7.4) and 16.1 months (95% C.I., 14.4-17.9) respectively. Common toxicities of TS-1 monotherapy included nausea/vomiting (N/V) (13.6%), anemia (13.2%) and neutropenia (10.2%). However, the incidences of more grade 3/4 toxicities were less than 3.0%. All grades of neutropenia, N/V and anemia occurred in 35.4%, 21.1% and 13.3% of patients receiving 3-weekly TS-1/cisplatin. However, grade 3/4 toxicities including neutropenia, N/V and anemia occurred in only 17.8%, 3.0% and 2.9%. Conclusions: Three-weekly TS-1 monotherapy or TS-1/cisplatin CTx showed good efficacy and well tolerability. Our study suggests that 3-weekly scheduled regimens may be a good treatment option for unresectable AGC 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: 2012
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  • 4
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 33, No. 7_suppl ( 2015-03-01), p. 399-399
    Abstract: 399 Background: By definition, primary adenocarcinoma of the bladder (PAB) is a malignant neoplasm derived from urothelium of the bladder showing histologically pure glandular differentiation. Because of its rarity, role of chemotherapy for metastatic adenocarcinoma of bladder is still questionable. Therefore, we performed a retrospective analysis of the clinical features and chemotherapy outcomes of metastatic PAB to evaluate the clinical findings at presentation, overall survival (OS) and progression-free survival (PFS) and prognostic factors. Methods: Eligible patients for this retrospective analysis were initially diagnosed with adenocarcinoma and presented with a clinically no other primary site of origin. The collected data included age, gender, performance status, stage, hemoglobin, albumin, initial date of diagnosis, treatment modality utilized, response to treatment, presence of relapse, last status of patient, and last date of follow-up. Results: We retrospectively reviewed 29 patients who treated with chemotherapy as metastatic PAB at 10 Korean medical institutions from 2004 to 2014.The median age of patients was 58 years (range, 17 to 78 years) and 51.7% of the patients were female. Fifteen patients were urachal adenocarcinoma. Of 27 symptomatic patients, 22 experienced gross hematuria. Ten patients had two or more metastatic sites of the lungs (51.7%), peritoneum (41.4%), and ovary (20.7%), as the most common sites. Twelve patients were treated with 5-FU based chemotherapy, 5 were gemcitabine based, 3 were taxane and adriamycin based, and others. 13 of them achieved CR (10.3%) or PR (34.5%). Median PFS and OS for all patients were 10.6 months (95% confidence interval [CI], 9.5 to 11.6 months) and 24.5 months (95% CI, 1.2 to 47.8 months), respectively. In the prognostic factor analysis, the cases of urachal adenocarcinoma had worse tendency in PFS and OS (p=0.024 and P=0.046, respectively). Conclusions: Metastatic Despite most of chemotherapy, PFS and OS were short especially in urachal carcinoma, however, there were some long-term survivors, therefore, additional research on the predictive markers of several clinical, pathological differences and their treatments will be needed.
    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: 2015
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  • 5
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 38, No. 15_suppl ( 2020-05-20), p. TPS1106-TPS1106
    Abstract: TPS1106 Background: Paclitaxel is a microtubule-stabilizing drug used for various cancers including breast cancer (BC) and gastric cancer (GC). DHP107 is an oral paclitaxel solution formulated with non-toxic excipients using DH-LASED technology, which doesn’t require pre-treatment. DHP107 demonstrated comparable efficacy and safety to IV paclitaxel for patients with advanced GC (Ann Oncol 2018), and was market approved as the first oral paclitaxel in 2016 for GC in Korea. In previous OPTIMAL phase II study, the primary endpoint objective response rate (ORR) was 54.5% in HER2 negative metastatic BC (MBC) patients and 44.4% in triple negative BC (TNBC) patients. Disease control rate (DCR) was 90.9% by the investigators’ assessment. Toxicity was manageable (2019 ESMO). OPTIMAL phase III is being conducted in Korea, China and Eastern Europe based on this result and another phase II study (OPERA) is being performed in USA. Methods: OPTIMAL 3 study is a multinational, multi-center, randomized and open-label trial enrolling HER2 negative (HR+/HER2- or TNBC) recurrent or metastatic BC patients. Patients are randomized to either study (DHP107) or control group (IV paclitaxel) in a 1:1 ratio and stratified by disease free interval (DFI≤48 weeks vs 〉 48 weeks), visceral metastasis status (visceral vs non-visceral) and country. Patients are administrated with DHP107 (200mg/m 2 p.o. bid) or IV paclitaxel (80mg/m 2 infused) on D1, 8, 15, q4wks. Tumor assessments are performed on every 8 weeks (±7 days) from C1D1 until disease progression (RECIST V1.1). Key inclusion & exclusion criteria are hormone receptor (ER/PR) positive or negative, HER2 negative, ECOG performance status ≤1 and no prior chemotherapy in recurrent or metastatic disease. The primary endpoint is progression free survival (PFS). Secondary endpoints include ORR, overall survival (OS), time to treatment failure (TTF), DCR, quality of life (QoL) and safety. Total target number of patients is 476 with an estimated 10% drop-out rate. The test is based on non-inferiority hypothesis (HR=1.33) with 80% power. The primary endpoint will be analyzed using a one-sided test at a 2.5% significance level, and other endpoints will be analyzed using a two-sided test at a 5% significance level, with 95% confidence interval. The first subject was enrolled in Jan 2019 and recruitment is ongoing and is expected to be completed in Dec 2020. Final results of this study will be announced by the end of 2022. Clinical trial information: NCT03315364 .
    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
    detail.hit.zdb_id: 2005181-5
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  • 6
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 30, No. 4_suppl ( 2012-02-01), p. 623-623
    Abstract: 623 Background: Ethnic diversity of genetic polymorphism can result in individual differences in the efficacy and toxicity of cancer chemotherapy. Methods: A total of 292 Korean patients (183 men and 109 women) from six hospitals in Korea were prospectively enrolled. Patients had resected stage III or high-risk stage II colon cancer and were treated with 12 cycles of adjuvant oxaliplatin plus leucovorin plus 5-fluorouracil (FOLFOX) chemotherapy. 20 germline polymorphisms in 10 genes (TS, MTHFR, ERCC1, XPD, XRCC1, ABCC2, AGXT, GSTP1, GSTT1 and GSTM1) were analyzed from peripheral blood. TS genotype in 5’UTR was classified as ‘high’ (2R/3G, 3C/3G, and 3G/3G) or ‘low’ (2R/2R, 2R/3C, and 3C/3C). Results: Most patients (86.3%) received 12 complete cycles of FOLFOX chemotherapy. In contrast to previous studies in Caucasians, neutropenia (grade 3–4, 60.5%) was frequently observed in our Korean patients, whereas only 16.4% experienced grade 2 or more sensory neuropathy. Neutropenia was more frequent in MTHFR 677TT [adjusted odds ratio (OR) 2.32, 95% confidence interval (CI) 1.19–4.55] and ERCC1 19007TT (adjusted OR 4.58, 95% CI 1.20–17.40) genotypes. Patients harboring XRCC1 23885GG had lowe r risk of neuropathy (adjusted hazard ratio 0.56, 95% CI 0.32-0.99) and longer time to the onset of grade 2-4 neuropathy. MTHFR 677TT and XRCC1 23885GG genotype was also more prevalent in Koreans compared to Caucasians, and the difference of genotypic frequency could partly explain the ethnically different toxicity profile. After median 49.4 months of follow-up, there were 58 (19.9%) relapses and 19 (6.5%) deaths. TS ‘low’ genotype [adjusted hazard ratio (OR) 1.83, 95% CI 1.003–3.34] was significantly related to shorter disease-free survival. Overall survival was not significantly different according to the polymorphisms. Conclusions: Polymorphisms in MTHFR, XRCC1 and TS are related to toxicities and disease-free survival in patients with colon cancer. These polymorphisms may explain the ethnic difference in toxicity profile following adjuvant FOLFOX 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: 2012
    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. e21539-e21539
    Abstract: e21539 Background: Older adults have increased risk of developing chemotherapy toxicity. Currently available prediction tools do not provide information on cumulative risk and none are from Asia. Methods: Patients with histologically confirmed solid cancer aged ≥70 years were prospectively enrolled from 17 centers and underwent geriatric assessment before starting their 1st line chemotherapy. Chemotherapy toxicity prediction model was built for adverse events (AEs) ≥G3, among geriatric assessment, laboratory and clinical variables. Model discrimination values were evaluated using c-statistics compared with actual cumulative incidence of AE ≥G3 in each cycle. Results: 301 patients were enrolled with a median age of 75 years (range 70-93). Primary site included colorectal (28.9%), lung (24.6%), hepato-biliary-pancreatic (22.3%), stomach (10.6%) and others (13.6%). Median chemotherapy cycle was 4 (2-7 cycles). During first line chemotherapy, 53.8% of patients experienced AEs ≥G3. Six variables significantly associated with occurrence of AEs ≥ G3 were serum protein 〈 6.7 g/dL, no dose reduction at first cycle, suffering from psychological stress or acute disease in the past 3 months, water consumption of less than 3 cups per day, not being able to obey command of 'Grab a piece of paper in your hand', and self-perception of ‘not in good health’. Model with all six variables was selected with the highest mean value of c statistics (0.646) and prediction tool indicated score ranging from 0 to 8 points. Patients were classified to 4 risk groups; 61 (21.0%), 143 (49.3%), 66 (22.8%), and 20 (6.9%) in low (0, 1 point), medium-low (2, 3), medium-high (4, 5), and high risk group (6, 7, 8). Predicted cumulative incidence of AEs ≥G3 was discriminated according to risk groups; low risk group: 13%, 19%, 27%, 30%, 30% in cycle 1, cycle 2, cycle 3, cycle 4, cycle 5, medium-low risk: 17%, 37%, 48%, 56%, 60%, medium-high risk: 26%, 44%, 50%, 68%, 75%, and high risk: 45%, 62%, 87%, 94%, 94%. Conclusions: Novel prediction tool could identify those at high risk of developing AEs ≥G3 after chemotherapy, which provided information on cumulative incidence in each cycle.
    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
    detail.hit.zdb_id: 2005181-5
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  • 8
    Online Resource
    Online Resource
    American Society of Clinical Oncology (ASCO) ; 2010
    In:  Journal of Clinical Oncology Vol. 28, No. 16 ( 2010-06-01), p. 2660-2667
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 28, No. 16 ( 2010-06-01), p. 2660-2667
    Abstract: In approximately 20% of patients with superficial bladder tumors, the tumors progress to invasive tumors after treatment. Current methods of predicting the clinical behavior of these tumors prospectively are unreliable. We aim to identify a molecular signature that can reliably identify patients with high-risk superficial tumors that are likely to progress to invasive tumors. Patients and Methods Gene expression data were collected from tumor specimens from 165 patients with bladder cancer. Various statistical methods, including leave-one-out cross-validation methods, were applied to identify a gene expression signature that could predict the likelihood of progression to invasive tumors and to test the robustness of the expression signature in an independent cohort. The robustness of the gene expression signature was validated in an independent (n = 353) cohort. Results Supervised analysis of gene expression data revealed a gene expression signature that is strongly associated with invasive bladder tumors. A molecular classifier based on this gene expression signature correctly predicted the likelihood of progression of superficial tumor to invasive tumor. Conclusion We present a molecular signature that can predict, at diagnosis, the likelihood of bladder cancer progression and, possibly, lead to improvements in patient therapy.
    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: 2010
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  • 9
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 38, No. 15_suppl ( 2020-05-20), p. 9572-9572
    Abstract: 9572 Background: Lazertinib (YH25448) is a highly mutant-selective, irreversible 3 rd -generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) that targets the activating EGFR mutations (Del19 and L858R), as well as the T790M mutation, while sparing wild type. We report the efficacy and safety results of lazertinib 240 mg as recommended phase 2 dose (RP2D) from a phase I/II study of lazertinib (NCT03046992). Methods: Patients (pts) with advanced NSCLC, who had progressed after prior EGFR-TKI therapy were enrolled in an open-label, multicenter, phase I/II study with dose-escalation (20-320 mg), dose-expansion (40-240 mg) and dose-extension phases. Pts were assessed for safety, tolerability, pharmacokinetics and efficacy. For dose-expansion and extension phases, tumors had to be T790M mutation-positive (T790M+). Of all 78 pts assigned to lazertinib 240 mg dose level across all phases, 76 pts with centrally confirmed T790M+ were included for efficacy analysis. Results: As of 30 Sep 2019, a total of 78 pts (49% female, median age 62) received at least one dose of lazertinib 240 mg. The median duration of follow-up was 9.6 months and 44 pts were ongoing at data cut-off. Of 78 pts, 76 pts with centrally confirmed T790M+ showed the objective response rate (ORR) 57.9% (95% CI 46.8, 69.0), the disease control rate (DCR) 89.5% (95% CI 82.6, 96.4), the median progression-free survival (PFS) 11.0 months (95% CI 5.6, 16.4) and the median duration of response (DoR) 13.8 months (95% CI 9.6, NR) by independent central review (ICR), respectively. Two pts (3%) experienced a confirmed complete response. The investigator-assessed ORR, DCR, median PFS and median DoR were 72.4% (95% CI 62.3, 82.4), 94.7% (95% CI 89.7, 99.8), 13.2 months (95% CI 9.6, not reached) and 11.8 months (95% CI 8.4, not reached), respectively. The most common treatment-emergent adverse events (TEAEs) at the 240 mg dose regardless of its causality were rash (35%), pruritus (33%) and paraesthesia (32%), which were mostly mild (Grade ≥3 rash: 1%; no Grade ≥3 pruritus or paraesthesia). TEAEs leading to dose reduction and dose discontinuation were observed in 13% (10/78) and 8% (4/78), respectively. Drug related TEAEs of grade ≥3 were observed in 6% (5/78). Conclusions: Lazertinib 240 mg has a favorable safety profile, and exhibits promising anti-tumor activity in pts with EGFR T790M+ NSCLC. Clinical trial information: NCT03046992 .
    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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  • 10
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 34, No. 15_suppl ( 2016-05-20), p. 6090-6090
    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
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