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H.R. Kim



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    MINI 30 - New Kinase Targets (ID 157)

    • Event: WCLC 2015
    • Type: Mini Oral
    • Track: Treatment of Advanced Diseases - NSCLC
    • Presentations: 1
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      MINI30.11 - Efficacy and Safety of Dovitinib in Advanced Squamous Cell Lung Cancer with FGFR1 Amplification: A Single-Arm, Phase II Study (ID 666)

      19:30 - 19:35  |  Author(s): H.R. Kim

      • Abstract
      • Presentation
      • Slides

      Background:
      FGFR1 amplification is one of the most common potential driving oncogenes in squamous cell carcinoma (SCC), which accounts for 20% of non-small cell lung cancer (NSCLC) squamous cell carcinoma. This phase II study evaluated the efficacy and toxicity profile of dovitinib, an orally active FGFR (fibroblast growth factor receptor) inhibitor, in advanced SCC patients.

      Methods:
      Patients with histological confirmed advanced squamous cell NSCLC and previously treated with at least one cytotoxic chemotherapy were enrolled from April 2013 to December 2014. All patients had FGFR1 gene amplification more than 5 copies by fluorescent in situ hybridization (FISH). Each 7-day treatment cycle consisted of dovitinib 500mg orally administration on days 1 to 5 and 2 days off. Primary endpoint was overall response rate and secondary endpoints included PFS, OS and toxicity.

      Results:
      All 26 patients were male with the median age of 68 years (range, 52 – 80). Most patients were ever smokers (96%) and had good ECOG (0-1) performance status (85%). The median number of dovitinib treatment cycles administered was 2.5 (range, 1-12). The overall response rate (ORR) was 11.5% (95% CI, 0.8 – 23.8) and disease control rate (DCR) was 50% (95% CI, 30.8 – 69.2). There were three partial responses (PR) and ten stable diseases (SD). Duration of response in 3 patients who achieved PR was 4.5+, 5.1+ and 6.1months. After the median follow-up duration of 15.7 months (range, 5.8 – 25.6 ), the median overall survival (OS) was 5.0 months (95% Confidential Interval, 3.61 – 6.39) and progression-free survival (PFS) was 2.9 months (95% CI, 1.54 – 4.26). Grade 1/2 fatigue (69%) and anorexia (85%) were most commonly reported adverse events and 12 patients (46%) required dose reduction of dovitinib.

      Conclusion:
      Dovitinib treatment a showed modest efficacy in advanced squamous cell lung cancer patients with FGFR1 amplification. Further studies to evaluate other biomarkers correlated with the efficacy of dovitinib in SCC should be warranted.

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