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  Poster Display session (Friday) (ID 65)

  • Event: ELCC 2018
  • Type: Poster Display session
  • Track:
  • Presentations: 1
  • Now Available
  • Moderators:
  • Coordinates: 4/13/2018, 12:30 - 13:00, Hall 1

  • 25368

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    167P - Efficacy of pemetrexed-based chemotherapy in advanced lung adenocarcinoma patients with ROS-1 rearrangement (Now Available) (ID 413)

    12:50 - 12:50  |  Author(s): Y. Dong
    • Abstract
    • Slides

    Background:
    When chemotherapy is commenced as first-line treatment in advanced lung adenocarcinoma patients with ROS-1 rearrangement, it is unclear that which agent should be preferentially administered. The aim of this study is to compare the therapeutic efficacy of pemetrexed-containing (Pem-C) and non-pemetrexed-containing (Non-Pem-C) chemotherapy in these patients.
    
    Methods:
    We retrospectively identified patients who were demonstrated to be ROS-1 positive by multiplex reverse-transcriptase polymerase chain reaction (RT-PCR) between October 2014 and December 2016. Those who received platinum-based dual agent chemotherapy as palliative treatment were included for further analysis.
    
    Results:
    A total of 4596 consecutive individuals were screened and 55 eligible individuals were enrolled into this study. In first-line treatment, patients who received Pem-C treatment (n = 39) derived a higher objective response rate (ORR, 40.0% vs. 7.1%, P = 0.02) and progression-free survival (PFS1, 7.0 months vs. 3.9 months, P < 0.01) compared with those who received Non-Pem-C treatment (n = 16). However, in later-line treatment, progression-free survival (PFS2) was not statistically superior in the Pem-C group (3.1 months, 95% CI: 0.6–5.6 months) compared with the Non-Pem-C group (1.9 months, 95% CI: 0.1–3.1 months, P = 0.12).
    
    Conclusions:
    Pem-C treatment resulted in better clinical outcomes compared with other agents in patients with ROS-1 rearrangement when initiated as first-line treatment.
    
    Clinical trial identification:
    
    
    Legal entity responsible for the study:
    Bo Zhang
    
    Funding:
    Has not received any funding
    
    Disclosure:
    All authors have declared no conflicts of interest.
    
    

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