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A phase II, randomized, multicenter study to assess the efficacy, safety, and tolerability of zibotentan (ZD4054) in combination with pemetrexed in patients with advanced non-small cell lung cancer.

Author(s): Chouaid C, Nathan F, Pemberton K, Morris T

Affiliation(s): Service de Pneumologie, Hopital Saint Antoine, 184 Rue du Faubourg, Saint-Antoine, 75571 Paris Cedex 12, France. christos.chouaid@sat.aphp.fr

Publication date & source: 2011-05, Cancer Chemother Pharmacol., 67(5):1203-8. Epub 2010 Dec 14.

Publication type: Clinical Trial, Phase II; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't

PURPOSE: This study evaluated overall survival (OS) of patients with advanced non-squamous NSCLC following treatment with the specific endothelin A receptor antagonist, zibotentan in combination with pemetrexed compared with pemetrexed monotherapy. METHODS: In this double-blinded, placebo-controlled study, patients with advanced NSCLC with non-squamous histology who had failed first-line platinum-based chemotherapy were randomized to receive either once-daily zibotentan 10 mg in combination with 3-weekly pemetrexed 500 mg/m(2) or placebo plus 3-weekly pemetrexed 500 mg/m(2). OS was calculated as the interval from date of randomization to date of death from any cause. Safety and tolerability were evaluated by recording the incidence of adverse events (AE) according to Common Toxicity Criteria for AE (CTCAE). RESULTS: Sixty-six patients were randomized and completed the study (zibotentan plus pemetrexed, n = 30; placebo plus pemetrexed, n = 36). At the data cutoff, a total of 44 deaths had occurred, 20 and 24 in the zibotentan and placebo groups, respectively. No significant difference in OS was observed between the zibotentan and placebo treatment groups (HR, 1.13; 80% CI 0.77, 1.67; P = 0.69). The majority of AE were of CTCAE grade 1 or 2, and the most commonly reported AE in both treatment groups was anemia (23 and 25% of patients in the zibotentan and placebo groups, respectively). CONCLUSIONS: There was no survival signal in patients with NSCLC following treatment with zibotentan in combination with pemetrexed. No new issues related to safety for either zibotentan or pemetrexed were identified.

Page last updated: 2011-12-09

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