A Study of AT13387 in Patients With Non-Small Cell Lung Cancer (NSCLC) Alone and in Combination With Crizotinib

The purpose of the study is to evaluate safety and efficacy of AT13387 Alone and in Combination with Crizotinib in the Treatment of Non-small Cell Lung Cancer.

This is a 3-part phase 1-2 study in patients with anaplastic lymphoma kinase (ALK) + or other potentially crizotinib-sensitive NSCLC who have been receiving crizotinib. Part A is a single-arm, Phase 1, open-label, dose escalation design in patients with NSCLC who have already been receiving crizotinib for at least 8 weeks and continue to tolerate therapy. Part B is a Phase 2, open-label, randomized continuation design comparing crizotinib alone versus the combination of crizotinib + AT13387 at the maximum tolerated dose established in Part A. Part C is an open-label, randomized, Phase 2, Simon's 2 stage design evaluating single agent AT13387 or combination AT13387 + crizotinib at the MTD established in Part A in patients who progressed on crizotinib at any time.