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K. Fujiwara



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    P2.03 - Poster Session/ Treatment of Locoregional Disease – NSCLC (ID 213)

    • Event: WCLC 2015
    • Type: Poster
    • Track: Treatment of Locoregional Disease – NSCLC
    • Presentations: 1
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      P2.03-013 - A Phase II Study of S-1 and Thoracic Irradiation for Elderly Pts with Locally Advanced Non-Small Cell Lung Cancer: Okayama Lung Cancer Study Group (ID 224)

      09:30 - 09:30  |  Author(s): K. Fujiwara

      • Abstract
      • Slides

      Background:
      Although thoracic irradiation (TRT) is one of the standarad therapies in elderly pts with locally advanced non-small cell lung cancer (LA-NSCLC), its treatment outcome is still poor. We previously reported safety profiles of S-1, an oral fluoropyrimidine possesing a radio-sensitizing effect, and concurrent TRT in such population [Lung Cancer 2011]. Here, we investigated the efficacy and safety of S-1 with concurrent TRT for elderly pts with LA-NSCLC.

      Methods:
      Pts with stage III, aged >75 years and PS 0-1, and without any prior chemotherapy were eligible for this study. Pts were treated with S-1 (40 mg/m2/dose b.i.d on days 1-14 and 29-42) and TRT (60 Gy/30 fr over 6 weeks starting on day 1). Primary endpoint was response rate (RR), and required sample siza was 30 pts.

      Results:
      Between 2007 and 2012, 30 pts were enrolled (24 men; median age, 79 years; PS 1, 15; IIIa, 20; Sq, 12). Median Charlson score was 1 (range; 0-3). The proportion of actual dose schedule relative to the planned one of S-1 and TRT was 95 and 98%, respectively. Partial response was observed in 19 pts (63%; 95% confidence interval: 45-82%), which did not meet the endpoint. At the time of the analysis, 24 (80%) of the 30 had experienced recurrences; 13 (43%) were locoregional, 6(20%) distant, and 5 (17%) both locoregional and distant. At a median follow-up of 23.7 months, median progression-free survival and MST were 13.0 months and 27.9 months, respectively. Toxicities were generally mild, including G3/4 neutropenia (17%), G3 febrile neutropenia (7%) and G3 pneumonitis (10%). No toxic deaths occurred.

      Conclusion:
      This study did not meet the primary endpoint. However, concurrent S-1 and TRT yielded favorable survival data. Also, it was well-tolerated in elderly pts with LA-NSCLC

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