Shinichi Egawa

Prof. Shinichi Egawa

orcid

Research Focus & Metrics

Academic Career Length

32Years (1995-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 May 2013 in Journal of Clinical Oncology
Verified
Journal Article
Closed access
HUHideki Ueno
Hideki Ueno
TITatsuya Ioka
Tatsuya Ioka
MIMasafumi Ikeda
Masafumi Ikeda
SOShinichi Ohkawa
Shinichi Ohkawa
HYHiroaki Yanagimoto
Hiroaki Yanagimoto
MTMasao Tanaka
Masao Tanaka
Purpose: The present phase III study was designed to investigate the noninferiority of S-1 alone and superiority of gemcitabine plus S-1 compared with gemcitabine alone with respect to overall survival. Patients and Methods: The participants were chemotherapy-naive patients with locally advanced or metastatic pancreatic cancer. Patients were randomly assigned to receive only gemcitabine (1,000 mg/m2 on days 1, 8, and 15 of a 28-day cycle), only S-1 (80, 100, or 120 mg/d according to body-surface area on days 1 through 28 of a 42-day cycle), or gemcitabine plus S-1 (gemcitabine 1,000 mg/m2 on days 1 and 8 plus S-1 60, 80, or 100 mg/d according to body-surface area on days 1 through 14 of a 21-day cycle). Results: In the total of 834 enrolled patients, median overall survival was 8.8 months in the gemcitabine group, 9.7 months in the S-1 group, and 10.1 months in the gemcitabine plus S-1 group. The noninferiority of S-1 to gemcitabine was demonstrated (hazard ratio, 0.96; 97.5% CI, 0.78 to 1.18; P < .001 for noninferiority), whereas the superiority of gemcitabine plus S-1 was not (hazard ratio, 0.88; 97.5% CI, 0.71 to 1.08; P = .15). All treatments were generally well tolerated, although hematologic and GI toxicities were more severe in the gemcitabine plus S-1 group than in the gemcitabine group. Conclusion: Monotherapy with S-1 demonstrated noninferiority to gemcitabine in overall survival with good tolerability and presents a convenient oral alternative for locally advanced and metastatic pancreatic cancer.

16 June 2015 in International Journal of Disaster Risk Science
Verified
Journal Article
Open access
PDF file
AAAmina Aitsi-Selmi
Amina Aitsi-Selmi
SEShinichi Egawa
Shinichi Egawa
HSHiroyuki Sasaki
Hiroyuki Sasaki
Chadia WannousChadia Wannous
Chadia Wannous
VMVirginia Murray
Virginia Murray
The Sendai Framework for Disaster Risk Reduction 2015–2030 (SFDRR) is the first global policy framework of the United Nations’ post-2015 agenda. It represents a step in the direction of global policy coherence with explicit reference to health, development, and climate change. To develop SFDRR, the United Nations Office for Disaster Risk Reduction (UNISDR) organized and facilitated several global, regional, national, and intergovernmental negotiations and technical meetings in the period preceding the World Conference on Disaster Risk Reduction (WCDRR) 2015 where SFDRR was adopted. UNISDR also worked with representatives of governments, UN agencies, and scientists to develop targets and indicators for SFDRR and proposed them to member states for negotiation and adoption as measures of progress and achievement in protecting lives and livelihoods. The multiple efforts of the health community in the policy development process, including campaigning for safe schools and hospitals, helped to put people’s mental and physical health, resilience, and well-being higher up the disaster risk reduction (DRR) agenda compared with the Hyogo Framework for Action 2005–2015. This article reviews the historical and contemporary policy development process that led to the SFDRR with particular reference to the development of the health theme.

1 October 2012 in Pancreas
Verified
Journal Article
Closed access
SEShinichi Egawa
Shinichi Egawa
HTHiroki Toma
Hiroki Toma
HOHiroaki Ohigashi
Hiroaki Ohigashi
TOTakuji Okusaka
Takuji Okusaka
ANAkimasa Nakao
Akimasa Nakao
MTMasao Tanaka
Masao Tanaka
Since 1981, the Japan Pancreas Society has been hosting a nationwide pancreatic cancer registry. To commemorate its 30th anniversary, we review its history and latest achievement. During 3 decades, more than 350 leading institutions in Japan contributed voluntarily to register and periodic follow-up. The registry was modified to protect privacy by encrypting and hash algorithm. From 1981 to 2007, 32,619 cumulative records were analyzed. The overall survival of invasive cancer was improved significantly. More patients with earlier stage or with intraductal and cystic neoplasms underwent resection. The strongest prognostic factor of Union for International Cancer Control (UICC) stage IIA and IIB tubular adenocarcinoma in the pancreatic head was histological grade, followed by tumor size, extent of lymph node dissection, and postoperative chemotherapy. The 5-year survival rate of Union for International Cancer Control stage 0 reached 85%. The improvement of survival of patients with invasive cancer in Japan can be attributed to the introduction of effective chemotherapies, regionalization, and the earlier diagnosis and treatment. Simple definition of "early pancreatic cancer" is needed. At the 30th year anniversary, the Japan Pancreas Society nationwide pancreatic cancer registry is more shining than ever for current perspectives and for future diagnostic and treatment tactics.

18 August 2009 in British Journal of Cancer
Verified
Journal Article
Open access
PDF file
HUH Ueno
H Ueno
TKT Kosuge
T Kosuge
YMY Matsuyama
Y Matsuyama
JYJ Yamamoto
J Yamamoto
ANA Nakao
A Nakao
KKK Kanemitsu
K Kanemitsu
This multicentre randomised phase III trial was designed to determine whether adjuvant chemotherapy with gemcitabine improves the outcomes of patients with resected pancreatic cancer. Eligibility criteria included macroscopically curative resection of invasive ductal carcinoma of the pancreas and no earlier radiation or chemotherapy. Patients were randomly assigned at a 1 : 1 ratio to either the gemcitabine group or the surgery-only group. Patients assigned to the gemcitabine group received gemcitabine at a dose of 1000 mg m−2 over 30 min on days 1, 8 and 15, every 4 weeks for 3 cycles. Between April 2002 and March 2005, 119 patients were enrolled in this study. Among them, 118 were eligible and analysable (58 in the gemcitabine group and 60 in the surgery-only group). Both groups were well balanced in terms of baseline characteristics. Although heamatological toxicity was frequently observed in the gemcitabine group, most toxicities were transient, and grade 3 or 4 non-heamatological toxicity was rare. Patients in the gemcitabine group showed significantly longer disease-free survival (DFS) than those in the surgery-only group (median DFS, 11.4versus 5.0 months; hazard ratio=0.60 (95% confidence interval (CI): 0.40–0.89); P=0.01), although overall survival did not differ significantly between the gemcitabine and surgery-only groups (median overall survival, 22.3 versus 18.4 months; hazard ratio=0.77 (95% CI: 0.51–1.14); P=0.19). The current results suggest that adjuvant gemcitabine contributes to prolonged DFS in patients undergoing macroscopically curative resection of pancreatic cancer.

1 January 2016 in Journal of Epidemiology
Verified
Journal Article
Open access
PDF file
SKShinichi Kuriyama
Shinichi Kuriyama
NYNobuo Yaegashi
Nobuo Yaegashi
FNFuji Nagami
Fuji Nagami
TATomohiko Arai
Tomohiko Arai
YKYoshio Kawaguchi
Yoshio Kawaguchi
MYMasayuki Yamamoto
Masayuki Yamamoto
Japan's largest platform for academic e-journals: J-STAGE is a full text database for reviewed academic papers published by Japanese societies

30 December 2010 in Gut
Verified
Journal Article
Closed access
PDF file
TFToru Furukawa
Toru Furukawa
THTakashi Hatori
Takashi Hatori
IFIzumi Fujita
Izumi Fujita
MYMasakazu Yamamoto
Masakazu Yamamoto
MKMakio Kobayashi
Makio Kobayashi
MSMichio Shimizu
Michio Shimizu
Objective: The clinicopathological significance of four morphological types of intraductal papillary mucinous neoplasms of the pancreas (IPMNs; gastric, intestinal, pancreatobiliary and oncocytic) was assessed. Design: Retrospective multicentre analysis of 283 surgically resected IPMNs. Results: Of the 283 IPMNs, 139 were of the gastric type, 101 were intestinal, 19 were pancreatobiliary and 24 were oncocytic. These types were significantly associated with clinicopathological factors including sex (p=0.0032), age (p=0.00924), ectatic duct size (p=0.0245), detection of mural nodules (p=4.09×10 −6 ), histological grade (p<2.20×10 −16 ), macroscopic types with differential involvement of the pancreatic duct system (p=3.91×10 −5 ), invasive phenotypes (p=3.34×10 −12 ), stage (p<2.20×10 −16 ) and recurrence (p=0.00574). Kaplan–Meier analysis showed significant differences in patient survival by morphological type (p=5.24×10 −6 ). Survival rates at 5 and 10 years, respectively, were 0.937 (95% CI 0.892 to 0.984) for patients with gastric-type IPMNs; 0.886 (95% CI 0.813 to 0.965) and 0.685 (95% CI 0.553 to 0.849) for those with intestinal-type IPMNs; 0.839 (95% CI 0.684 to 1.000) and 0.734 (95% CI 0.526 to 1.000) for those with oncocytic-type IPMNs; and 0.520 (95% CI 0.298 to 0.909) and undetermined for those with pancreatobiliary-type IPMNs. Analysis by the Cox proportional hazards model comparing prognostic risks determined by stage and the morphological and macroscopic types indicated that staging was the most significant predictor of survival (p=3.68×10 −8 ) followed by the morphological type (p=0.0435). Furthermore, the morphological type remained a significant predictor in a subcohort of invasive cases (p=0.0089). Conclusion: In this multicentre retrospective analysis, the morphological type of IPMN appears to be an independent predictor of patient prognosis.