1.S-1 Monotherapy as a Neoadjuvant Treatment for Locally Advanced Gastric Cancer.
Jong Yul JUNG ; Sun Young RHA ; Joong Bae AHN ; Woo Ick YANG ; Sung Hoon NOH ; Hyun Cheol CHUNG ; Hei Cheul JEUNG
The Korean Journal of Internal Medicine 2008;23(1):37-41
S-1, a novel oral fluoropyrimidine, is an effective therapeutic agent for gastric cancer. Herein, we report a case with locally advanced gastric cancer that achieved a curative resection after S-1 monotherapy as neoadjuvant treatment. A 68-year-old man was diagnosed with gastric cancer and massive lymphadenopathy involving the perigastric, celiac axis and splenic hilum. His clinical stage was cT3N2H0P0M0. Considering his relatively poor performance (ECOG 2, severe weight loss) and advanced age, we started the patient on S-1 monotherapy at a dose of 35 mg/m2 bid for 4 consecutive weeks followed by a 2-week rest. Follow-up study after 4 treatment cycles revealed disappearance of the lymphadenopathy of the perigastric and celiac axis with diminished extension of the stomach mass. The patient had a partial response (PR) with a 72% tumor reduction, according to the Response Evaluation Criteria in Solid Tumors (RECIST). His performance status was improved to an ECOG 1 and he gained 7 kg. A curative (R0) resection was achieved with a radical total gastrectomy and D2 dissection. The pathological stage was pT3N2M0, stage IIIB. In conclusion, S-1 neoadjuvant chemotherapy aided in the treatment of gastric cancer in this patient.
Adenocarcinoma/*drug therapy/pathology/surgery
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Aged
;
Antimetabolites, Antineoplastic/administration & dosage/*therapeutic use
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Drug Combinations
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Gastrectomy
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Humans
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Male
;
*Neoadjuvant Therapy
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Neoplasm Staging
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Oxonic Acid/administration & dosage/*therapeutic use
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Stomach Neoplasms/*drug therapy/pathology/surgery
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Tegafur/administration & dosage/*therapeutic use
2.Recent developments in systemic chemotherapy for hepatocellular carcinoma.
The Korean Journal of Hepatology 2008;14(1):4-11
Despite recent developments in various chemotherapeutic agents and the performing of numerous clinical trials, chemotherapy still produces unsatisfactory results in hepatocellular carcinoma due to poor clinical benefit compared with untreated controls and its significant toxicity. The presence of liver cirrhosis, its complications, and decreased liver function increase the complexity of chemotherapy. There is recent evidence that targeted agents and antiangiogenic agents such as thalidomide are somewhat effective whilst having minimal toxicities. Some patients are cured by aggressive chemotherapy alone or in combination with other modalities. Therefore, if a patient is in good condition and the tumor shows some response to chemotherapy, aggressive chemotherapy might be considered. Although conventional chemotherapeutic agents are not very effective in many patients, their utility might be improved by lowering toxicities using reduced doses or by selecting only responsive patients if adequate chemosensitivity tests are available. Imaging studies have been conventional tools for evaluating tumor responses, but their results are not always reliable. Establishing criteria for accurately determining tumor responses is urgently needed, along with better chemotherapeutic drugs and regimens.
Antibodies, Monoclonal/therapeutic use
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Antimetabolites, Antineoplastic/therapeutic use
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Antineoplastic Agents, Hormonal/therapeutic use
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Carcinoma, Hepatocellular/*drug therapy
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Combined Modality Therapy
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Deoxycytidine/analogs & derivatives/therapeutic use
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Fluorouracil/analogs & derivatives/therapeutic use
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Humans
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Immunologic Factors/therapeutic use
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Liver Neoplasms/*drug therapy
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Tegafur/therapeutic use
3.Effect of adjuvant chemotherapy of ginsenoside Rg3 combined with mitomycin C and tegafur in advanced gastric cancer.
Zhe-Jing CHEN ; Jun CHENG ; Ying-Peng HUANG ; Shao-Liang HAN ; Na-Xin LIU ; Guan-Bao ZHU ; Jian-Gao YAO
Chinese Journal of Gastrointestinal Surgery 2007;10(1):64-66
OBJECTIVETo evaluate the enhancing effects of ginsenoside Rg3 combined with mitomycin C and tegafur (MF) on postoperative chemotherapy in advanced gastric cancer.
METHODSSeventy-one postoperative patients with advanced gastric cancer were randomly divided into two groups, the control group (n=33), which received treatment with only MF (Mitomycin C+Tegafur), and the trial group (n=38), which were treated with ginsenoside Rg3+MF. The serum VEGF levels in the control group and trial group were detected preoperatively and postoperatively, meanwhile, the serum VEGF levels in 30 healthy persons were detected as comparison. The relations between patients survival and serum VEGF levels were analyzed.
RESULTSThe levels of serum VEGF in advanced gastric cancer were higher than those in healthy persons [(297.8+/-129.6) pg/ml vs (212.3+/-67.5) pg/ml] (P<0.01), and were correlated with the depth of tumor invasion, lymph node metastasis, tumor size > 4 cm and TNM stage (P<0.05). Fourteen weeks after operation, the levels of serum VEGF in trial group decreased below those of preoperation and approached to normal range, while in the control group, the levels of serum VEGF decreased near those of preoperation only. The median survival of patients in trial group and control group were 40 and 25 months respectively. The survival rate of patients in trial group was significantly higher than that in control group (P=0.047).
CONCLUSIONThe combined application of ginsenoside Rg3+MF chemotherapy can decrease the concentration of serum VEGF and improve the survival rate in advanced gastric cancer patients.
Adult ; Aged ; Aged, 80 and over ; Angiogenesis Inhibitors ; therapeutic use ; Chemotherapy, Adjuvant ; Female ; Ginsenosides ; therapeutic use ; Humans ; Male ; Middle Aged ; Mitomycin ; therapeutic use ; Neoplasm Staging ; Phytotherapy ; Stomach Neoplasms ; blood ; drug therapy ; pathology ; Survival Rate ; Tegafur ; therapeutic use ; Vascular Endothelial Growth Factor A ; blood
4.Meta-analysis of late course accelerated hyperfractionated radiotherapy combined with FP chemotherapy for esophageal carcinoma.
Chao-Xing LIU ; Xue-Ying LI ; Xian-Shu GAO
Chinese Journal of Cancer 2010;29(10):889-899
BACKGROUND AND OBJECTIVEAlthough there are many randomized clinical trials of late course accelerated hyperfractionated radiotherapy (LCAHFR) combined with FP chemotherapy for esophageal cancer, the efficacy and toxicity are controversial. This study was to evaluate the efficacy and toxicity of LCAHFR combined with FP chemotherapy in treating esophageal cancer.
METHODSReports of randomized clinical trials on LCAHFR combined with FP chemotherapy for esophageal cancer published between January 1999 and January 2009 were researched through Wanfang, CNKI, and PubMed databases. RevMan4.2 software was used for Meta-analysis.
RESULTSTwenty-one reports, including 2030 patients, were included in the meta-analysis. Of the 2030 patients, 1006 underwent LCAHFR (LCAHFR group), and 1024 underwent LCAHFR combined with FP chemotherapy (combination group). Compared with those of the LCAHFR group, the 1-, 2-, 3-, 5-years survival rates and 1-, 2-, 3-year local control rates of the combination group were significant increased, and the acute toxicity was also increased, but chronic toxicity showed no significant difference.
CONCLUSIONSLCAHFR combined with FP chemotherapy can improve the survival rate and the local control rate of the patients with esophageal cancer. The increased acute toxicity need to be concerned, whereas the chronic toxicity needs a long-term observation.
Adenocarcinoma ; drug therapy ; radiotherapy ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Bronchitis ; etiology ; Carcinoma, Squamous Cell ; drug therapy ; radiotherapy ; Cisplatin ; therapeutic use ; Combined Modality Therapy ; Dose Fractionation ; Esophageal Neoplasms ; drug therapy ; radiotherapy ; Esophageal Stenosis ; etiology ; Esophagitis ; etiology ; Humans ; Leukopenia ; etiology ; Nausea ; etiology ; Pulmonary Fibrosis ; etiology ; Randomized Controlled Trials as Topic ; Survival Rate ; Tegafur ; therapeutic use ; Uracil ; therapeutic use
5.Efficacy of S-1 in Advanced Non-small Cell Lung Cancer Patients Treated with More Than Two Lines of Chemotherapy.
Yi YIN ; Biao WU ; Zhangzhou HUANG ; Wu ZHUANG ; Zhenwu XU ; Cheng HUANG ; Yunjian HUANG ; Jing ZHANG
Chinese Journal of Lung Cancer 2018;21(6):437-444
BACKGROUND:
There is no standard treatment for advanced non-small cell lung cancer (NSCLC) after the failure of two lines of chemotherapy, S-1 as the third generation of fluorouracil derivate with well safety and low toxicity, presented some efficacy in lung cancer treatment. The aim of this study is to explore the efficacy of S-1 for advanced NSCLC patients treated with two or more prior chemotherapy regimens.
METHODS:
We performed a retrospective analysis of 105 NSCLC patients treated with S-1 monotherapy or S-1 contained chemotherapy as the third or more line of treatment in our hospital from January 2014 to April 2017. S-1 was administrated orally twice daily for 2 weeks, followed by one week of rest, the dose of drug was determined by body surface area (<1.25 m2, 80 mg/d; 1.25 m2-1.5 m2, 100 mg/d; ≥1.5 m2, 120 mg/d), platinum or the third-generation chemotherapy drugs could be combinedly used. Clinical response was assigned every cycle according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1, Kaplan-Meier analysis was used to estimate progression-free survival (PFS).
RESULTS:
42 patients received S-1 monotherapy, the other 63 patients received combined regimens, the median treatment line was 4 (3-11) and the median treatment cycle was 2 (1-14). No complete response (CR) were observed, there were 4 patients with partial response (PR), 34 patients with stable disease (SD) and 67 patients with progressive disease (PD), the objective response rate (ORR) was 3.81%, disease control rate (DCR) was 36.19%. The median PFS was 1.90 months (0.67 months-10.83 months), no difference between monotherapy and combined group (DCR: 28.56% vs 41.27%, P=0.185), the liver metastasis showed poorer PFS (1.40 months vs 1.93 months , P=0.042).
CONCLUSIONS
S-1 presented some activity in advanced NSCLC treated with more than two lines of treatment. The addition of other drugs cannot improve efficacy. S-1 monotherapy can be used as a choice for heavily-treated patients.
Adult
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Aged
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Antineoplastic Agents
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adverse effects
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pharmacology
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therapeutic use
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Carcinoma, Non-Small-Cell Lung
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drug therapy
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Drug Combinations
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Female
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Fluorouracil
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adverse effects
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therapeutic use
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Humans
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Lung Neoplasms
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drug therapy
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Male
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Middle Aged
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Oxonic Acid
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adverse effects
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pharmacology
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therapeutic use
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Retrospective Studies
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Safety
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Survival Analysis
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Tegafur
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adverse effects
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pharmacology
;
therapeutic use
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Treatment Outcome
6.Clinical Observation of Bevacizumab Combined with S-1 in the Treatment of Pretreated Advanced Esophageal Carcinoma.
Keke NIE ; Chuanxin GENG ; Ling ZHANG ; Shichao LIU ; Zhongfa ZHANG ; Rong WANG ; Xiao ZOU ; Youxin JI
Chinese Medical Sciences Journal 2016;31(4):221-227
Objective To investigate the clinical effects and safety of bevacizumab combined with S-1 as the second-line treatment of recurrent and/or metastatic esophageal cancer after chemoradiation. Methods Patients with recurrent or metastatic esophageal cancer after chemoradiation were treated with bevacizumab and S-1. Bevacizumab was used by intravenous infusion, 7.5mg/kg body weight on day 1; S-1 was used by oral at 80mg/m·d on day 1-14, 21 days as a cycle of treatment and repeated until either pro- gressive disease or intolerable toxicity occurred. Chest CT were performed and RECIST 1.1 was used for response evaluation. Kaplan-Meier method was used for survival analysis. Side effects were recorded and analyzed. Results Totally 78 patients were enrolled in the study, including 67 squamous cell carcinoma and 11 adenocarcinoma histologically. The overall response (CR+PR) rate was 22.4% (17/76) and disease control (CR+PR+SD) rate was 61.8% (47/76) respectively. The median follow-up time was 20 months (range from 9 to 44 months). The median progression-free survival (PFS) was 4.9 months (95% CI 4.4-5.5) and the median overall survival (OS) was 8.1 months (95% CI 7.6-9.2). The median PFS and OS of patients with metastasis diseases were 6.2 months (95% CI 3.3 to 6.3) and 8.5 months (95% CI 5.8 to 11.2), where PFS was longer than that of patients with local regional recurrence (median 5.0 months, 95% CI 3.0 to 5.5, P=0.017) and OS was longer than that of patients with regional disease and metastasis (median 8.0 months, 95% CI 4.6 to 9.5, P=0.010). The common adverse effects were mild to moderate neutropenia (84.2%), grade I-II hand and foot syndrome (51.3%), grade I-II nausea (48.7%), mild epistaxis (30.1%) and mild vomiting (14.5%). Esophageal bleeding occurred in 7.9% of patients. One patient (1.3%) died from massive bleeding which was caused by esophageal perforation. Conclusion Bevacizumab combined with S-1 was effective and safe for esophageal cancer patients who had recurrent or metastatic diseases after chemoradiation.
Adult
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Aged
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Antineoplastic Combined Chemotherapy Protocols
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therapeutic use
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Bevacizumab
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administration & dosage
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adverse effects
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Drug Combinations
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Esophageal Neoplasms
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drug therapy
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mortality
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pathology
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Female
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Humans
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Male
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Middle Aged
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Oxonic Acid
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administration & dosage
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adverse effects
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Tegafur
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administration & dosage
;
adverse effects
7.High-dose oral tegafur-uracil maintenance therapy in patients with uterine cervical cancer.
Isao SAKAGUCHI ; Takeshi MOTOHARA ; Fumitaka SAITO ; Kiyomi TAKAISHI ; Yukitoshi FUKUMATSU ; Toshimitsu TOHYA ; Saburo SHIBATA ; Hiroyuki MIMORI ; Hironori TASHIRO ; Hidetaka KATABUCHI
Journal of Gynecologic Oncology 2015;26(3):193-200
OBJECTIVE: The aim of this study was to determine the efficacy and toxicity of oral administration of tegafur-uracil (UFT) at a high dose, 600 mg/day, based on the tegafur dose, against uterine cervical cancer. METHODS: This study consisted of a retrospective analysis. From April 1986 to March 1997, 309 patients with uterine cervical cancer were registered. Oral UFT was administered to 162 patients for maintenance therapy after an initial treatment (the UFT group). The other 147 patients were not treated with UFT (the control group). The survival rate was calculated for both groups and statistically analyzed using the log-rank test. Adverse events were compared between the UFT and control groups. RESULTS: In the UFT group, 103 patients (63.6%) received UFT for > or =90 days. The drug dose was 600 mg/day for 137 patients (84.6%) and 300 to 400 mg/day for the remainder. The overall survival rate was significantly higher in the UFT group than in the control group (p<0.05). The prognosis was particularly favorable in stage III cases, in cases of squamous cell carcinoma, and in cases that were treated by radiotherapy. The most frequent side effects were nausea/vomiting (12.2%), appetite loss (10.1%), and leukopenia/neutropenia (5.8%). CONCLUSION: High-dose oral UFT maintenance treatment prolonged the disease-free survival and overall survival of patients with uterine cervical cancer, particularly of those with advanced disease.
Administration, Oral
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Antineoplastic Combined Chemotherapy Protocols/*therapeutic use
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Disease-Free Survival
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Female
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Humans
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Kaplan-Meier Estimate
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Middle Aged
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Retrospective Studies
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Tegafur/administration & dosage/adverse effects
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Treatment Outcome
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Uracil/administration & dosage/adverse effects
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Uterine Cervical Neoplasms/*drug therapy/mortality
8.Safety and effectiveness of oxaliplatin combined with capecitabine or oxaliplatin combined with S-1 neoadjuvant chemotherapy in the treatment of advanced gastric cancer.
Bo Wen XIE ; Lu ZANG ; Jun Jun MA ; Jing SUN ; Xiao YANG ; Ming Liang WANG ; Ai Guo LU ; Wei Guo HU ; Min Hua ZHENG
Chinese Journal of Gastrointestinal Surgery 2021;24(2):138-144
Objective: To explore the safety and efficacy of oxaliplatin plus capecitabine (CapeOX) or oxaliplatin plus S-1 (SOX) regimen neoadjuvant chemotherapy in the treatment of advanced gastric cancer. Methods: A retrospective cohort study was performed. Clinical data of patients diagnosed as advanced gastric cancer undergoing CapeOX/SOX neoadjuvant chemotherapy and standard laparoscopic radical operation for gastric cancer in Ruijin Hospital of Shanghai Jiaotong University School of Medicine from April 2016 to April 2019 were retrospectively collected. Inclusion criteria were as follows: (1) age≥18 years; (2) gastric adenocarcinoma was confirmed by histopathology and the clinical stage was T3-4aN+M0; (3) tumor could be resectable; (4) preoperative neoadjuvant chemotherapy was CapeOX or SOX regimen without radiotherapy or other regimen chemotherapy; (5) no other concurrent malignant tumor; (6) the Eastern Cooperative Oncology Group (ECOG) score ≤ 1; (7) no bone marrow suppression; (8) normal liver and kidney function. Exclusion criteria were as follows: (1) patients with recurrent gastric cancer; (2) patients receiving emergency surgery due to tumor perforation, bleeding, obstruction, etc.; (3) allergy to oxaliplatin, S-1, capecitabine or any drug excipients; (4) diagnosed with coronary heart disease, cardiomyopathy, or the New York Heart Association class III or IV; (5) pregnant or lactating women. A total of 118 patients were enrolled as the neoadjuvant chemotherapy group, and 379 patients with locally advanced gastric cancer who received surgery combined with postoperative adjuvant chemotherapy over the same period simultaneously were included as the adjuvant chemotherapy group. After propensity score matching was performed including gender, age, ECOG score, tumor site, clinical stage, chemotherapy regimen and other factors by 1:1 ratio, there were 40 cases in each group. The differences between the two groups in general conditions, efficacy of neoadjuvant chemotherapy, intraoperative conditions, postoperative conditions, histopathological results, chemotherapy-related adverse events, and survival status were compared and analyzed. Results: Comparison of baseline demographics between the two groups showed no statistically significant difference (all P>0.05). In the neoadjuvant chemotherapy group, 5.0% (2/40) of patients achieved clinical complete response, 57.5% (23/40) achieved partial response, 32.5% (13/40) remained stable disease, and 5.0% (2/40) had disease progression before surgery. Objective response rate was 62.5% (25/40), and disease control rate was 95.0% (38/40). There were no statistically significant differences between neoadjuvant chemotherapy group and adjuvant chemotherapy group in terms of operation time, intraoperative blood loss, number of lymph node harvested, length of postoperative hospital stay, and postoperative mortality and morbidity (all P>0.05). Postoperative complications were well managed with conservative treatment. No Clavien-Dindo IV or V complications were observed in both groups. Pathological results showed that the proportion of patients with pathological stage T1 in the neoadjuvant chemotherapy group was significantly higher than that in the adjuvant chemotherapy group [27.5% (11/40) vs. 5.0% (2/40)], while the proportion of patients with pathological stage T3 was significantly lower than that in the adjuvant chemotherapy group [20.0% (8/40) vs. 45.0% (18/40)], with statistically significant difference (χ(2)=15.432, P=0.001). In the neoadjuvant chemotherapy group, there were 4 cases of tumor regression grade 0, 8 cases of grade 1, 16 cases of grade 2, and 12 cases of grade 3. The pathological complete response rate was 10% (4/40), the overall pathological response rate was 70.0% (28/40). There was no statistically significant difference in the incidence of chemotherapy-related adverse events between neoadjuvant chemotherapy group and adjuvant chemotherapy group [40% (16/40) vs. 37.5% (15/40), P>0.05). There were no statistically significant differences in OS (43 months vs. 40 months) and 3-year OS rate (66.1% vs. 59.8%) between neoadjuvant chemotherapy group and adjuvant chemotherapy group (P=0.428). The disease-free survival (DFS) and 3-year DFS rates of the neoadjuvant chemotherapy group were significantly superior to those of the adjuvant chemotherapy group (36 months vs. 28 months, 51.4% vs. 35.8%, P=0.048). Conclusion: CapeOX or SOX regimen neoadjuvant chemotherapy is a safe, effective and feasible treatment mode for advanced gastric cancer without increasing surgical risk and can improve the DFS of patients.
Adenocarcinoma/surgery*
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Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
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Capecitabine/administration & dosage*
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Chemotherapy, Adjuvant
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Drug Combinations
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Humans
;
Neoadjuvant Therapy
;
Oxaliplatin/administration & dosage*
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Oxonic Acid/administration & dosage*
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Radiotherapy
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Retrospective Studies
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Stomach Neoplasms/surgery*
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Tegafur/administration & dosage*
;
Treatment Outcome
9.Volume-reserving Surgery after Photodynamic Therapy for Biliary Papillomatosis: A Case Report.
Chin Ock CHEONG ; Jin Hong LIM ; Joon Seung PARK ; Seung Woo PARK ; Hyun Ki KIM ; Kyung Sik KIM
The Korean Journal of Gastroenterology 2015;66(1):55-58
Biliary papillomatosis is rare, and its pathogenic mechanisms are not yet clear. Because of its high risk for malignancy transformation, surgical resection is regarded as a standard treatment. Photodynamic therapy (PDT) has been used by the intravenous administration of hematoporphyrin derivative followed by laser exposure. A photochemical process causes disturbance of the microvascular structure and degradation of membrane. Cholangitis is a major complication after PDT. A healthy 56-year-old man was diagnosed with biliary papillomatosis involving the common hepatic duct, both proximal intrahepatic bile ducts (IHD), and the right posterior IHD. After biliary decompression by endoscopic nasobiliary drainage, PDT was performed to avoid extensive liver resection and recurrence using endoscopic retrograde cholangiographic guidance. After portal vein embolization, the patient underwent extended right hemihepatectomy. Following administration of chemoradiation therapy with tegafur-uracil and 45 Gy due to local recurrence at postoperative 13 months, there was no local recurrence or distant metastases. This is the first case report on PDT for biliary papillomatosis in Korea. Preoperative PDT is beneficial for reducing the lesion in diffuse or multifocal biliary papillomatosis and may lead to curative and volume reserving surgery. Thus, PDT could improve the quality of life and prolong life expectation for biliary papillomatosis patients.
Antineoplastic Agents/therapeutic use
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Bile Duct Neoplasms/*diagnosis/drug therapy/surgery
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Bile Ducts, Intrahepatic/pathology
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Embolization, Therapeutic
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Gamma Rays
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Hepatectomy
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Hepatic Duct, Common/pathology
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Humans
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Male
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Middle Aged
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Neoplasm Recurrence, Local
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Papilloma/*diagnosis/drug therapy/surgery
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Photochemotherapy
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Tegafur/therapeutic use
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Uracil/therapeutic use
10.Comparison of the efficacy and safety of capecitabine or tegafur, gimeracil and oteracil potassium capsules combined with oxaliplatin chemotherapy regimens in the treatment of advanced gastric cancer.
Yiyuan WAN ; Hongxia HUI ; Xiaowei WANG ; Jian WU ; Su'an SUN
Chinese Journal of Oncology 2016;38(1):28-34
OBJECTIVETo observe the efficacy and safety of chemotherapy regimens oxaliplatin combined with capecitabine (CAPOX) or oxaliplatin combined with tegafur, gimeracil and oteracil potassium capsules (S-1)(SOX), and to investigate the value of expression of thymidine phosphorylase (TP) and dihydropyrimidine dehydrogenase (DPD) proteins in tumor tissue for predicting the efficacy of CAPOX and SOX regimens in advanced gastric cancer patients.
METHODSA total of 107 newly-diagnosed, stage Ⅲc/Ⅳ gastric cancer patients (no surgical indication, ECOG performance scores 0-2 and expected survival time ≥3 months) were recruited with 101 patients evaluated. The patients were randomly divided into two groups. One was study group in which the patients received CAPOX regimen. The other was control group received SOX regimen. Each patient received four cycles, at least two cycles chemotherapy every three weeks and followed up until death or lost. Tumor biopsies were obtained by gastroscopy for immunohistochemical examination of the expression of TP and DPD proteins before chemotherapy. Response rate (ORR), overall survival (OS) and time to tumor progression (TTP) of the patients were assessed.
RESULTSThe objective response rate (ORR) of the study and control groups was 49.0% (5/51) vs. 46.0% (23/50), respectively (P>0.05). The overall survival (OS) was 357.36±24.69 days in the study group and 349.87±22.63 days in the control group, and the time-to-progression (TTP) was 216.75±19.32 days in the study group and 220.54±18.47 days in the control group (P>0.05 for both). Stratified analysis showed that the ORR of TP-positive patients in the study group was significantly higher than that in the control group (72.0 % vs. 41.7 %, P=0.032). There was no significant difference in ORR between the TP-negative patients in the study and control groups (26.9% vs. 50.0%, P=0.087), while the ORR of DPD-positive patients in the control group was significantly higher than that of the study group (51.9% vs. 34.6%, P=0.046). There was no significant difference in the ORR between DPD-negative patients in the study and control groups (64.0% vs. 39.1%, P=0.084). The follow-up showed that the OS (378.42±22.56 days) and TTP (271.77±24.92 days) in the TP-positive patients of the study group were significantly longer than those of the control group (OS: 326.57±19.84 days, and TTP: 229.13±22.68 days)( P<0.05). The OS was 371.25±23.97 days and TTP was 264.66±21.36 days in the DPD-positive patients of control group, significantly longer than those of the study group (OS: 334.73±21.47days, and TTP: 208.58±20.70 days) (P<0.05). But there was no significant difference in the OS and TTP between the TP- and DPD-negative patients in the two groups (P>0.05). In respect of adverse events, both the rates of hematological and non-hematological toxicities were low and similar between the two groups (P>0.05), and well-tolerated by the patients.
CONCLUSIONSBoth CAPOX and SOX regimens are effective chemotherapeutic protocols in treatment of patients with advanced gastric cancer. The expression levels of TP and DPD in tumor tissue can be used as a predictive factor for the efficacy of capecitabine or tegafur, gimeracil and oteracil potassium capsules combined with oxaliplatin regimens. CAPOX chemotherapy regimen is more suitable for the TP-positive gastric cancer patients, and SOX regimen is more suitable for the DPS-positive gastric cancer patients.
Antineoplastic Agents ; adverse effects ; therapeutic use ; Antineoplastic Combined Chemotherapy Protocols ; adverse effects ; therapeutic use ; Capecitabine ; administration & dosage ; adverse effects ; Capsules ; Dihydrouracil Dehydrogenase (NADP) ; metabolism ; Disease Progression ; Humans ; Neoplasm Proteins ; metabolism ; Organoplatinum Compounds ; administration & dosage ; adverse effects ; Oxonic Acid ; administration & dosage ; adverse effects ; Pyridines ; administration & dosage ; adverse effects ; Stomach Neoplasms ; drug therapy ; metabolism ; mortality ; pathology ; Tegafur ; administration & dosage ; adverse effects ; Thymidine Phosphorylase ; metabolism