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Dive into the research topics where Naohiro Okano is active.

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Featured researches published by Naohiro Okano.


Annals of Oncology | 2014

714PFIXED DOSE RATE GEMCITABINE AND S-1 COMBINATION THERAPY (FGS) AS SALVAGE CHEMOTHERAPY FOR GEMCITABINE-REFRACTORY ADVANCED PANCREATIC CANCER

Akiyoshi Kasuga; Naohiro Okano; Daisuke Naruge; Hiroshi Kitamura; Atsuko Takasu; Fumio Nagashima; J. Furuse

ABSTRACT Aim: No standard salvage chemotherapy regimens has been established for patients with advanced pancreatic cancer after failure of gemcitabine-based treatment. Although a phase I/II clinical trial of FGS was conducted, the number of patients enrolled was small and the efficacy and safety of FGS is still not well known. Methods: We retrospectively reviewed 67 patients who received FGS as salvage chemotherapy at our institution from March 2009 to Mach 2014. The selection criteria in this study was progressive disease under gemcitabine-based chemotherapy, ECOG performance status Results: Sixty-six patients were selected for the analysis. Twenty-two patients of them had received FGS as third line treatment. The overall responce rate was 12% and the disease control rate was 45%. The median progression-free survival time was 2.7 months and the median overall survival time was 6.0 months. The common grade 3/4 toxicities were leukopenia (11%), neutropenia (15%), diarrhea (3%), anorexia (2%) and fatigue (2%). Univariate analysis showed that performance status of >0, presence of ascites, serum carcinoembryonic antigen level of > 10 ng/ml, serum albumin level of 500 IU/L and serum C-reactive protein level of > 1.0 mg/dl were significantly associated with a poor prognosis. Multivariate analysis identified serum C-reactive protein level of > 1.0 mg/dl and serum albumin level of Conclusions: FGS as salvage chemotherapy for patients with gemcitabine-refractory advanced pancreatic cancer is marginally effective and well tolerated in a practical setting. These results suggest FGS is of value to be further investigated in a clinical trial in patients with gemcitabine-refractory pancreatic cancer. Disclosure: All authors have declared no conflicts of interest.


Cancer Chemotherapy and Pharmacology | 2015

Retrospective analysis of fixed dose rate infusion of gemcitabine and S-1 combination therapy (FGS) as salvage chemotherapy in patients with gemcitabine-refractory advanced pancreatic cancer: inflammation-based prognostic score predicts survival

Akiyoshi Kasuga; Naohiro Okano; Daisuke Naruge; Hiroshi Kitamura; Atsuko Takasu; Fumio Nagashima; Junji Furuse


Cancer Chemotherapy and Pharmacology | 2018

An early clinical trial of Salirasib, an oral RAS inhibitor, in Japanese patients with relapsed/refractory solid tumors

Junji Furuse; Takayasu Kurata; Naohiro Okano; Yasuhito Fujisaka; Daisuke Naruge; Toshio Shimizu; Hiroshi Kitamura; Tsutomu Iwasa; Fumio Nagashima; Kazuhiko Nakagawa


Anticancer Research | 2017

Axitinib for Gemcitabine-refractory Advanced Biliary Tract Cancer: Report of 5 Cases.

Naohiro Okano; Akiyoshi Kasuga; Kirio Kawai; Takaaki Kobayashi; Daisuke Naruge; Fumio Nagashima; Junji Furuse


Annals of Oncology | 2015

128OPhase I study of S-trans, trans-farnesylthiosalicylic acid (salirasib), a novel oral RAS inhibitor in Japanese patients with advanced solid tumors

Toshio Shimizu; Naohiro Okano; Takayasu Kurata; Daisuke Naruge; Yasuhito Fujisaka; Hiroshi Kitamura; Fumio Nagashima; Kazuhiko Nakagawa; J. Furuse


Pancreas | 2018

Nationwide Multicenter Observational Study of FOLFIRINOX Chemotherapy in 399 Patients With Unresectable or Recurrent Pancreatic Cancer in Japan

Akiko Todaka; Nobumasa Mizuno; Masato Ozaka; Hideki Ueno; Satoshi Kobayashi; Kazuhiro Uesugi; Noritoshi Kobayashi; Hideyuki Hayashi; Kentaro Sudo; Naohiro Okano; Yosuke Horita; Keiko Kamei; Seigo Yukisawa; Shoji Nakamori; Yutaka Yachi; Toshiyuki Henmi; Marina Kobayashi; Narikazu Boku; Keita Mori; Akira Fukutomi


Journal of Clinical Oncology | 2018

First-in-human phase I study of JPH203, L-type amino acids transporter 1 inhibitor, in patients with advanced solid tumors.

Naohiro Okano; Kirio Kawai; Takaaki Kobayashi; Fumio Nagashima; Hitoshi Endou; Junji Furuse


Journal of Clinical Oncology | 2018

The influence of biliary drainage in patients with advanced pancreatic cancer receiving FOLFIRINOX.

Makoto Ueno; Takeharu Yamanaka; Takashi Ogura; Atushi Yamaguchi; Nobumasa Mizuno; Masato Ozaka; Hideki Ueno; Kazuhiro Uesugi; Noritoshi Kobayashi; Hideyuki Hayashi; Kentaro Sudo; Naohiro Okano; Yosuke Horita; Keiko Kamei; Takafumi Hosokawa; Toshiyuki Henmi; Marina Kobayashi; Akiko Todaka; Akira Fukutomi


Journal of Clinical Oncology | 2018

First-in-human phaseIstudy of JPH203 in patients with advanced solid tumors.

Naohiro Okano; Kirio Kawai; Yoshiya Yamauchi; Takaaki Kobayashi; Daisuke Naruge; Fumio Nagashima; Hitoshi Endou; Junji Furuse


Investigational New Drugs | 2018

Post-progression survival following second-line chemotherapy in patients with advanced pancreatic cancer previously treated with gemcitabine: a meta-analysis

Akiyoshi Kasuga; Yasuo Hamamoto; Ayano Takeuchi; Naohiro Okano; Kazuhiro Togasaki; Yu Aoki; Takeshi Suzuki; Kenta Kawasaki; Kenro Hirata; Yasutaka Sukawa; Takanori Kanai; Hiromasa Takaishi

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Masato Ozaka

Japanese Foundation for Cancer Research

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