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H.S. Kim



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    ORAL 11 - Clinical Trials 1 (ID 100)

    • Event: WCLC 2015
    • Type: Oral Session
    • Track: Thymoma, Mesothelioma and Other Thoracic Malignancies
    • Presentations: 1
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      ORAL11.06 - A Prospective Phase II Study of Cisplatin and Cremorphor EL-Free Paclitaxel (Genexol-PM) in Patients with Unresectable Thymic Epithelial Tumors: Can 18F-FDG PET/CT Play a Role? (ID 2221)

      11:39 - 11:50  |  Author(s): H.S. Kim

      • Abstract
      • Presentation
      • Slides

      Background:
      We conducted a prospective phase II study of cisplatin plus Cremorphor EL-free paclitaxel (Genexol-PM) in patients with unresectable thymic epithelial tumors (TETs) in order to determine the efficacy and tolerability of the combination.

      Methods:
      Patients were treated with cisplatin (70 mg/m[2]) and Genexol-PM (230 mg/m[2]) every three weeks for a maximum of six cycles. The primary end point of this study was objective response rate (ORR), and secondary end points included toxicity, progression-free survival (PFS), overall survival (OS), correlation between early [18]F-FDG PET/CT response and PFS, and correlation between baseline FDG uptake and histology.

      Results:
      Forty-two patients with unresectable thymoma (n=14) or thymic carcinoma (n=28) were enrolled. The median age was 59 years (range, 25-77) and 30 (71%) patients were male, and 39 (93%) had an ECOG PS of 1. The median number of treatment cycles was six (range 1-6). For 40 assessable patients, the ORR was 62.5% (95% confidence interval [CI] 47.6-77.4) with rates of 46% (95% CI 23.3-76.9) for advanced thymoma (n=13) and 70% (95% CI 52.0-82.1) for thymic carcinoma (n=27). With a median follow-up of 15.5 months, the median PFS was 9.8 months (11.4 months for thymoma vs. 8.1 months for thymic carcinoma, with median follow-ups of 16.1 vs. 15.5 months, respectively). The two-year OS was 77.9% for thymoma and 65.9% for thymic carcinoma. There were no treatment-related deaths. The most common grade 3 and 4 treatment-related adverse event was neutropenia in 11 patients (26%). Sixteen (38%) patients experienced grade 2 hypersensitivity reactions. There was no correlation between early PET response and PFS, but tumor histology (thymoma vs. thymic carcinoma) was correlated with SUV~max~ before chemotherapy.

      Conclusion:
      These data suggest that the combination of cisplatin and Genexol-PM is highly effective and tolerable for the treatment of unresectable TETs, especially in patients with thymic carcinoma.

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