Author of

• 11673

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  P2.09 - Poster Session 2 - Combined Modality (ID 213)

  • Event: WCLC 2013
  • Type: Poster Session
  • Track: Combined Modality
  • Presentations: 1
  • Moderators:
  • Coordinates: 10/29/2013, 09:30 - 16:30, Exhibit Hall, Ground Level

  • 11678

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    P2.09-005 - Cisplatin, S-1 and concurrent thoracic radiotherapy for locally advanced non-small-cell lung cancer: A phase II study of Okayama Lung Cancer Study Group 0501 (ID 1202)

    09:30 - 09:30  |  Author(s): M. Tanimoto
    • Abstract

    Background
    Concurrent chemoradiotherapy is the standard treatment for locally advanced non-small-cell lung cancer (LA-NSCLC). However, its cure rate remains unsatisfied, and further improvement in the treatment outcome is strongly warranted. S-1 (S), an oral fluoropyrimidine, is a new active agent possessing a radio-sensitizing effect. Additionally, combining S and cisplatin (P) offered an active and safe regimen for metastatic non-small-cell lung cancer. The objective of this study was to assess the efficacy and safety of S plus P with concurrent thoracic radiotherapy (TRT) for LA-NSCLC.

    Methods
    Patients with stage IIIA/IIIB, aged ≤75 years and PS 0-1, and without any prior chemotherapy were eligible for this study. Patients were treated with P (40 mg/m² on day 1, 8, 29 and 36) and S (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 respsonse rate, and required sample size was 48 patients.

    Results
    Between 2006 and 2009, 48 patients were enrolled (37 men; median age, 66 years; PS 0/1, 36/14; IIIA/IIIB, 23/25; sq/non-sq, 22/26). Partial response was observed in 37 patients (77%; 95% confidence interval: 63-88%). At a median follow-up of 54 months for the surviving patients, median progression-free survival and median survival time were 9.3 months and 31.3 months, respectively. No difference in efficacy (response and survivals) was observed stratified by histology (sq vs. non-sq). Toxicities were generally mild, including G3/4 neutropenia (44%), G3/4 thrombocytopenia (13%), G3 febrile neutropenia (8%) and G3 pneumonitis (4%). No one developed Gr3/4 esophagitis. No toxic deaths have occurred.

    Conclusion
    This chemoradiotherapy regimen yielded a favorable overall survival data. Also, it was well-tolerated in patients with LA-NSCLC as compared with concurrent docetaxel plus P with TRT therapy especially in term of TRT-related toxicities.