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Qiang Nie

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    P2.17 - Treatment of Locoregional Disease - NSCLC (Not CME Accredited Session) (ID 966)

    • Event: WCLC 2018
    • Type: Poster Viewing in the Exhibit Hall
    • Track:
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/25/2018, 16:45 - 18:00, Exhibit Hall
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      P2.17-32 - Dynamic Monitoring Before and After Neo-Adjuvant Crizotinib in Non-Small Cell Lung Cancer: A Brief Report (ID 11829)

      16:45 - 18:00  |  Author(s): Qiang Nie

      • Abstract
      • Slides


      Neo-adjuvant therapy has been considered as an optional approach for locally advanced non-small-cell lung cancer (NSCLC) patients. While targeted therapy has been widely applied in advanced NSCLC, neo-adjuvant targeted therapy remains poorly explored.

      a9ded1e5ce5d75814730bb4caaf49419 Method

      We describe four ALK-positive patients with pathological confirmed locally advanced NSCLC receiving neo-adjuvant Crizotinib. All patients received Crizotinib at a starting dose of 250mg twice daily for 1-3 months before surgical resection. One patients provided dynamic monitoring before and after neo-adjuvant therapy through next generation sequencing of plasma and tissue.

      4c3880bb027f159e801041b1021e88e8 Result

      Three patients were partial response without apparent adverse event before surgery while one received pathological complete response to neo-adjuvant Crizotinib but suffering from grade 4 hepatic damage. One of them had disease recurrence but achieved long duration of response (PFS=15m) through first-line Crizotinib. Dynamic monitoring with both plasma and tissue indicated simultaneously decrease of sensitive ALK-signaling in a patient with partial response (-51%) and no ALK-dependent resistant variants were captured.



      8eea62084ca7e541d918e823422bd82e Conclusion

      Neo-adjuvant Crizotinib may be feasible and well-tolerated in locally advanced disease for complete resection. Crizotinib prior to surgery may provide thorough elimination of circulating molecular residual disease and it did not influence the response of reusing Crizotinib in first-line setting.


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