This is a Phase 2, multicenter, international, randomized, placebo controlled, double-blind study to assess the safety and efficacy of CC-486 and pembrolizumab combination therapy versus pembrolizumab plus placebo in previously treated patients with locally advanced or metastatic non-small cell lung cancer (NSCLC) who had received one prior platinum-based chemotherapy regimen.~Approximately 100 participants will be randomized 1:1 to receive CC-486 plus pembrolizumab or placebo plus pembrolizumab as follows:~Arm A: CC-486 300 mg administered orally daily on days 1 to 14 plus pembrolizumab 200 mg administered as a 30-minute IV infusion on day 1 of a 21-day cycle~Arm B: Placebo administered orally daily on days 1-14 plus pembrolizumab 200 mg administered as a 30-minute IV infusion on day 1 of a 21-day cycle~Randomization will be stratified between treatment arms by histology (non-squamous versus squamous).~The decision to discontinue a patient, which will not be delayed or refused by the Sponsor, remains the responsibility of the treating physician. However, prior to discontinuing a patient, the Investigator may contact the medical monitor and forward appropriate supporting documents for review and discussion.~In the follow-up phase, anticancer treatment administered following the last dose of investigational product (IP) and survival will be followed every 8 weeks until death, withdrawal of consent, or lost-to follow-up, whichever occurs first, or the End of Trial.~The study will be conducted in compliance with the International Council on Harmonisation (ICH) of Technical Requirements for Registration of Pharmaceuticals for Human Use/Good Clinical Practice (GCP) and applicable regulatory requirements.~Primary analysis will be conducted when 70 Progression Free Survival (PFS) events have occurred.
The purpose of this study is to determine whether the combination therapy of CC-486 (oral azacitidine) and pembrolizumab provides improved patient outcomes compared to pembrolizumab alone in patients with previously treated locally advanced or metastatic non-small cell lung cancer.