Publications by authors named "Masana Matsuura"

The promising results of the PACIFIC study led to the approval of consolidation durvalumab for coverage by the National Health Insurance (NHI) in 2018 for patients with locally-advanced unresectable non-small cell lung carcinoma (NSCLC) treated with definitive concurrent chemoradiotherapy (CCRT). However, the effect of NHI coverage on the patterns of care for this population remains unclear. Here, we conducted a questionnaire-based survey to determine the patterns of care for patients with stage II-III NSCLC treated with definitive radiotherapy in 2017 (pre-durvalumab era) or in 2019 (post-durvalumab era).

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Background: The aim of our study was to determine the maximum tolerated dose (MTD) and recommended dose (RD) of nanoparticle albumin-bound paclitaxel (nab-paclitaxel) plus carboplatin in combination with thoracic radiotherapy for patients with locally advanced stage III non-small cell lung cancer (NSCLC).

Methods: Weekly nab-paclitaxel plus carboplatin was administered intravenously for 6 weeks. Doses of each drug were planned as follows: level 1, 40/2; level 2, 60/2; level 3, 80/2 (nab-paclitaxel [mg/m]/carboplatin [area under the plasma concentration time curve mg/ml/min]).

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Purpose: It is unknown if local treatment is equally effective in non-small cell lung cancer (NSCLC) patients with postoperative mediastinal lymph node recurrence or primary stage III disease. The purpose of this study was to investigate the effectiveness of radiotherapy, with or without chemotherapy, in patients with postoperative mediastinal lymph node recurrence.

Methods: Patient characteristics, treatment response and survival were compared between NSCLC patients with mediastinal lymph node metastases treated between 2002-2009 by radiotherapy alone or by chemoradiotherapy (group A, N=33) and those with primary stage III disease (group B, N = 157).

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Platinum-based chemoradiotherapy (CRT) is a standard front-line treatment for locally advanced non-small cell lung cancer (NSCLC). However, no clinical trials have compared the efficacy and toxicity of platinum combination and docetaxel as subsequent re-challenge chemotherapies after cancer recurrence following CRT. This study aimed to evaluate the efficacy and toxicity of platinum combination chemotherapy versus docetaxel monotherapy in NSCLC patients previously treated with platinum-based CRT.

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Purpose: To determine the efficacy and safety of oral S-1 in combination with cisplatin and thoracic radiotherapy in patients with unresectable stage III non-small-cell lung cancer (NSCLC).

Methods And Materials: S-1 (50mg/m(2)) was administered orally twice daily for 14 days, with cisplatin (40 mg/m(2)) on days 1 and 8 of each cycle every 3 weeks, for 2-4 cycles. Thoracic radiation therapy was administered in 2 Gy fractions five times weekly for a total dose of 60 Gy.

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Apoptotic cell death is frequently found in certain tumor cells after irradiation; however, the incidence is not always high in vivo. Seven tumors were transplanted to nude mice, and their organs were histologically examined after irradiation to study the therapeutic significance of apoptosis in radiation therapy. A high incidence of apoptosis was found only in radiosensitive tumors or normal cells with wild-type p53, but the peak incidence in most cells was only a few percent or less.

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