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X. Song



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    MO06 - NSCLC - Chemotherapy I (ID 108)

    • Event: WCLC 2013
    • Type: Mini Oral Abstract Session
    • Track: Medical Oncology
    • Presentations: 1
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      MO06.13 - BEYOND: a randomized, double-blind, placebo-controlled, multicentre, phase III study of first-line carboplatin/paclitaxel (CP) plus bevacizumab (Bv) or placebo (Pl) in Chinese patients with advanced or recurrent non-squamous non-small cell lung cancer (NSCLC) (ID 2756)

      17:25 - 17:30  |  Author(s): X. Song

      • Abstract
      • Slides

      Background
      Bevacizumab, a monoclonal antibody that inhibits angiogenesis via the vascular endothelial growth factor (VEGF) pathway, has proven efficacy in extending overall survival (OS) (Sandler et al, 2006) and progression-free survival (PFS) (Sandler et al, 2006; Reck et al, 2009) when added to platinum-doublet chemotherapy as first-line treatment for advanced non-squamous NSCLC. These pivotal studies included mainly Caucasian patients, however subgroup analyses in Asian patients also reported efficacy of the first-line Bv+CP regimen (Reck et al, 2009). The BEYOND study was initiated to confirm efficacy in a Chinese population.

      Methods
      Patients aged ≥18 years with histologically or cytologically confirmed, locally advanced, metastatic or recurrent advanced non-squamous NSCLC and an ECOG performance status of 0–1 were randomised 1:1 to receive CP (paclitaxel 175mg/m[2] i.v. and carboplatin AUC6 i.v. on day 1 of each 3-week cycle for up to 6 cycles), plus either Pl or Bv 15mg/kg i.v. on day 1 of each cycle, until progression, unacceptable toxicity, withdrawal of patient consent or death. Patients had no prior treatment for advanced NSCLC. Patients were stratified by gender, smoking status and age. The primary endpoint was PFS in the intent-to-treat (ITT) population; secondary endpoints included objective response rate (ORR), OS, exploratory biomarkers and safety. Collection of blood samples for biomarker analyses was mandatory (at baseline, every two cycles during treatment, at progression, and 4–6 weeks post-progression); tissue samples were optional.

      Results
      276 patients were randomised into the study, 138 to each arm. Baseline characteristics were similar in both treatment groups. PFS was prolonged with Bv+CP versus Pl+CP: hazard ratio 0.40 (95% CI 0.29–0.54); median 9.2 versus 6.5 months; p<0.0001 (ITT population). ORR was also improved with the addition of Bv to CP: 54.4% versus 26.3% with Pl+CP. Disease control rate was 94.4% versus 88.7% with Bv+CP and Pl+CP, respectively. Median duration of response was 8.0 months with Bv+CP versus 5.3 months with Pl+CP. OS data are not yet mature. Safety data were similar to previous studies of Bv+CP in NSCLC; no new safety signals were observed. Treatment discontinuation due to adverse events was 18.4% (Bv+CP) and 15.0% (Pl+CP). Treatment-related deaths were low in both arms (Bv+CP: 2.2%; Pl+CP: 0.0%). Detailed safety data and biomarker analyses will be reported.

      Conclusion
      This study confirms that the addition of bevacizumab to first-line platinum-based chemotherapy appears to provide similar PFS benefits in Chinese patients with advanced non-squamous NSCLC compared with global populations. No new safety concerns were reported.

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