The study has a safety and a Phase 2 portion. In the safety portion of the study, subjects with metastatic non-small cell lung cancer will be treated with study drug (CS-7017) in combination with carboplatin and paclitaxel to evaluate safety. In the Phase 2 portion of the study, subjects will receive study drug (CS-7017) or placebo in combination with carboplatin and paclitaxel to evaluate effectiveness and safety. The study will find out if adding CS-7017 to carboplatin and paclitaxel will be safe and improve progression free survival in subjects with metastatic non-small cell lung cancer.

Inclusion Criteria:

• Histologically or cytologically confirmed metastatic (stage IV) NSCLC with no significant pleural effusion or pleural involvement from the tumor
• Age greater than or equal to 18 years
• Adequate organ and bone marrow function

Exclusion Criteria:

• Any prior systemic therapy for NSCLC
• Major surgical procedure or other investigational agents within 4 weeks before study enrollment
• Need for concomitant use of other thiazolidinediones during the study
• History of any of the following conditions within 6 months prior to initiating study treatment: Diabetes mellitus requiring treatment with insulin or sulfonylureas or thiazolidinediones (TZDs) agents; Myocardia infarction with significant impairment of cardia function; Malabsorption syndrome, chronic diarrhea, inflammatory bowel disease or partial bowel obstruction;
• Clinically active brain metastases, uncontrolled seizure disorder; spinal cord compression or carcinomatous meningitis

De-identified individual participant data (IPD) and applicable supporting clinical trial documents may be available upon request at https://vivli.org/. In cases where clinical trial data and supporting documents are provided pursuant to our company policies and procedures, Daiichi Sankyo will continue to protect the privacy of our clinical trial participants. Details on data sharing criteria and the procedure for requesting access can be found at this web address: https://vivli.org/ourmember/daiichi-sankyo/

Studies for which the medicine and indication have received European Union (EU) and United States (US), and/or Japan (JP) marketing approval on or after 01 January 2014 or by the US or EU or JP Health Authorities when regulatory submissions in all regions are not planned and after the primary study results have been accepted for publication.

Formal request from qualified scientific and medical researchers on IPD and clinical study documents from clinical trials supporting products submitted and licensed in the United States, the European Union and/or Japan from 01 January 2014 and beyond for the purpose of conducting legitimate research. This must be consistent with the principle of safeguarding study participants' privacy and consistent with provision of informed consent.