Merck Sharp & Dohme LLC
Researchers want to know if intismeran autogene (the study treatment) given with pembrolizumab and chemotherapy can treat metastatic treatment-naive squamous non-small cell lung cancer (NSCLC). Intismeran autogene is designed to help a person's immune system attack their specific cancer. The goal of this study is to learn if people who receive intismeran autogene with pembrolizumab and chemotherapy live longer overall and without the cancer growing or spreading compared to people who receive placebo with pembrolizumab and chemotherapy. A placebo looks like the study treatment but has no study treatment in it. Using a placebo helps researchers better understand the effects of the study treatment.
Inclusion Criteria: Inclusion Criteria include, but are not limited to: * Has a histologically or cytologically confirmed diagnosis of squamous non-small cell lung cancer (NSCLC) (Stage IV: M1a, M1b, M1c1, M1c2, AJCC Staging Manual, Version 9). NOTE: Mixed tumors will be characterized by the predominant cell type; however, small cell elements are not permitted. * Has measurable disease per Response Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as assessed by the local site investigator/radiology * Has provided a tissue sample that is collected either at the time of or after the diagnosis…
1 mg Intramuscular (IM) Injection
200 mg IV Infusion
Area Under the Curve (AUC) either 6 or 5 (mg/mL/min) IV Infusion
200 or 175 mg/m\^2 IV Infusion
100 mg/m\^2 IV Infusion
Placebo matched to Intismeran Autogene IM injection