Randomized, placebo-controlled phase II study of vandetanib plus docetaxel in previously treated non-small-cell lung cancer

John V. Heymach, Bruce E. Johnson, Diane Prager, Edit Csada, Jaromǐr Roubec, Miloš Pešek, Irena Špásová, Chandra P. Belani, István Bodrogi, Shirish Gadgeel, Sarah J. Kennedy, Jeannie Hou, Roy S. Herbst

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Abstract

Purpose: Vandetanib is a once-daily oral inhibitor of vascular endothelial growth factor receptor-2 and epidermal growth factor receptor kinase activity. The activity of vandetanib plus docetaxel was assessed in patients with previously treated non-small-cell lung cancer (NSCLC). Patients and Methods: This two-part study comprised an open-label run-in phase and a double-blind randomized phase. Eligible patients had locally advanced or metastatic (stage IIIB/IV) NSCLC after failure of first-line platinum-based chemotherapy. The primary objective of the randomized phase was to prolong progression-free survival (PFS) in patients receiving vandetanib (100 or 300 mg/d) plus docetaxel (75 mg/m2 intravenous infusion every 21 days) versus placebo plus docetaxel. The study was designed to have more than 75% power to detect 50% prolongation at a one-sided significance level of P < .20. Secondary objectives included objective response rate, overall survival, safety and tolerability. Results: In the randomized phase (n = 127), median PFS was 18.7 weeks for vandetanib 100 mg plus docetaxel (n = 42; hazard ratio v docetaxel = 0.64; one-sided P = .037); 17.0 weeks for vandetanib 300 mg plus docetaxel (n = 44; hazard ratio v docetaxel = 0.83; one-sided P = .231); and 12 weeks for docetaxel (n = 41). There was no statistically significant difference in overall survival among the three treatment arms. Common adverse events included diarrhea, rash, and asymptomatic prolongation of corrected QT (QTC) interval. Conclusion: The primary objective was achieved, with vandetanib 100 mg plus docetaxel demonstrating a significant prolongation of PFS compared with docetaxel in relation to the prespecified significance level. On the basis of these encouraging data, phase III evaluation of vandetanib 100 mg plus docetaxel in second-line NSCLC has been initiated.

Original languageEnglish
Pages (from-to)4270-4277
Number of pages8
JournalJournal of Clinical Oncology
Volume25
Issue number27
DOIs
Publication statusPublished - Sep 20 2007

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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    Heymach, J. V., Johnson, B. E., Prager, D., Csada, E., Roubec, J., Pešek, M., Špásová, I., Belani, C. P., Bodrogi, I., Gadgeel, S., Kennedy, S. J., Hou, J., & Herbst, R. S. (2007). Randomized, placebo-controlled phase II study of vandetanib plus docetaxel in previously treated non-small-cell lung cancer. Journal of Clinical Oncology, 25(27), 4270-4277. https://doi.org/10.1200/JCO.2006.10.5122