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AstraZeneca Withdraws Regulatory Submissions for Zactima (vandetanib) in Combination with Chemotherapy for Advanced NSCLC

Wed, 10/28/2009 - 4:21am
AstraZeneca announced today that it has withdrawn the regulatory submissions for the use of ZACTIMA (vandetanib) 100mg in combination with chemotherapy in patients with advanced non-small cell lung cancer (NSCLC) from the US FDA and the European Medicines Agency (EMEA). The applications were submitted to regulatory agencies in June 2009. The decision to withdraw these submissions was based on an updated analysis that demonstrated no overall survival advantage when vandetanib was added to chemotherapy as well as preliminary feedback from regulatory agencies that the current package with progression-free survival (PFS) as the primary endpoint may not be sufficient for approval. Phase III clinical trial results demonstrate that vandetanib is clinically active when used in combination with chemotherapy. AstraZeneca will complete the ongoing Phase III trial programme which will give a more complete view of vandetanib efficacy in different clinical settings. Results from the ZEPHYR (300mg monotherapy study in patients with advanced NSCLC who have previously received an EGFR inhibitor) and ZETA (300 mg monotherapy in advanced medullary thyroid cancer) studies are expected in late 2009 or early 2010.
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