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H. Buchner

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    MINI 17 - WT EGFR, Angiogenesis and OMD (ID 131)

    • Event: WCLC 2015
    • Type: Mini Oral
    • Track: Treatment of Advanced Diseases - NSCLC
    • Presentations: 1
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      MINI17.08 - Tumor Growth Over Time with Nintedanib/Docetaxel or Placebo/Docetaxel in Adenocarcinoma NSCLC: Analysis From the LUME-Lung 1 Study (ID 1405)

      16:45 - 18:15  |  Author(s): H. Buchner

      • Abstract
      • Slides

      Nintedanib (N; Vargatef[®]), a triple angiokinase inhibitor, is approved in the EU in combination with docetaxel (D) for the treatment of patients with advanced NSCLC of adenocarcinoma histology (ACH) after 1[st]-line chemotherapy. In the randomized, placebo-controlled, Phase III LUME-Lung 1 study (NCT00805194; 1199.13), N+D significantly improved overall survival (OS; secondary endpoint) vs D in patients with ACH (median OS: 12.6 vs 10.3 months (m); HR: 0.83 [95% CI: 0.70–0.99]; p=0.0359) and in patients who progressed either during or within 9 m of 1[st]-line therapy (time[T]<9m) (median OS: 10.9 vs 7.9 m; HR: 0.75 [95% CI: 0.60–0.92]; p=0.0073). We explored the impact of on tumor growth over time as a treatment effect of N+D, with a specific focus on early progressors (T<9m) and patients who had progressive disease as best response to 1[st]-line therapy (PD-FLT).

      Tumor growth was evaluated using all available tumor measurements. Mixed-effects models were used to quantify the non-linear individual relationships between time from randomization and tumor burden, measured as the sum of longest diameter of target lesions (SLD) and assessed by independent central review (RECIST 1.0). Analyses were conducted for the entire population of patients with ACH, T<9m and PD-FLT.

      Estimated mean baseline SLD was 82.5 mm in all patients with ACH, 88.3 mm in T<9m and 98.1 mm in PD-FLT. N+D showed a significant reduction of tumor growth over time (p<0.0001) in patients with ACH compared to D. Treatment difference at 6 months (SLD D group – SLD N+D group) for patients with ACH was 9.7 mm. This treatment difference was even more pronounced in the T<9m group (16.8 mm) and in patients with PD-FLT (19.7 mm). Tumor growth over time for N+D showed a non-linear J-shaped curve, indicating a decline in SLD at the beginning of treatment, which was maintained over time followed by a linear increase (see Figure for curves for the T<9m group). This relationship was consistently observed between populations. For patients treated with D, a linear increase in SLD from baseline over time in all ACH patients, T<9m and PD-FLT was observed. Figure 1

      In the LUME-Lung 1 study, N+D significantly decreased tumor burden and decelerated tumor growth over time compared to D in all patients with ACH and in the groups of patients with the poorest prognosis.

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