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G. Francini

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    MA 02 - Emerging Targets (ID 656)

    • Event: WCLC 2017
    • Type: Mini Oral
    • Track: Clinical Design, Statistics and Clinical Trials
    • Presentations: 1
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      MA 02.05 - Nivolumab in Advanced Non-Squamous NSCLC Patients with KRAS Mutations: Results from the Italian Expanded Access Program (EAP) (ID 9608)

      11:00 - 12:30  |  Author(s): G. Francini

      • Abstract
      • Presentation
      • Slides

      Nivolumab significantly improved overall survival (OS) versus docetaxel in patients (pts) with previously treated non-squamous non small cell lung cancer (non-Sq-NSCLC) in the Checkmate 057 study. In a pre-specified subgroup analysis of this trial, this advantage was confirmed also in patients (pts) with KRAS-mutation (KRAS+). However, since the number of KRAS+ pts enrolled in the trial was too small to draw definitive conclusions, the Italian nivolumab expanded access program (EAP) for non-Sq-NSCLC might represent an important source of information about this subpopulation. Here we report the results of the use of nivolumab in pts with KRAS mutation treated in the Italian EAP.

      Nivolumab was provided upon physicians’ request for pts aged ≥18 years who had relapsed after a minimum of one prior systemic treatment for stage IIIB/stage IV non-Sq-NSCLC. Nivolumab 3 mg/kg was administered intravenously every 2 weeks for <24 months. Pts included in the analysis received ≥1 dose of nivolumab and were monitored for adverse events (AEs) using Common Terminology Criteria for Adverse Events.

      Overall, 1588 pts with advanced non-Sq-NSCLC, enrolled in 168 sites, received at least one dose of nivolumab in the Italian EAP. Among 532 pts evaluated for KRAS mutation, 206 (39%) resulted positive. In this subgroup of pts, the best overall response rate (BORR) was 20%, including 2 pts with complete response and 39 pts with partial response. The median OS was 10.7 months (8.6-12.8), with a median follow-up of 7.7 months (0.1-21.2) and a median number of 8 doses (1-45). These results were in line with those ones showed in the overall population (18% BORR and 11 months median OS, respectively). Overall, among pts with KRAS mutation, 166 discontinued treatment for any reason, with only 14 (8%) pts who discontinued treatment due to adverse events, in line with what observed in the general population and in previous studies.

      To date, no direct targeted therapy is available for pts with KRAS mutation. This analysis seems to confirm, in a real word setting and in a larger number of pts, the results obtained with nivolumab in KRAS-positive pts in CheckMate 057, thus representing a potentially effective therapeutic option for this subpopulation.

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