A Clinical Trial to Test if an Investigational Combination Therapy With BNT326 and BNT327 is Safe and Potentially Beneficial for People With Advanced Non-small Cell Lung Cancer (NSCLC)

This is a multi-site, open-label, dose-finding study, consisting of Parts 1, 2a, and 2b to investigate the combination of BNT326 with pumitamig (also known as BNT327 or PM8002) in participants with relapsed, progressive as well as treatment-naïve, advanced/metastatic non-small cell lung cancer (NSCLC). This study will enroll adult participants with histologically or cytologically confirmed NSCLC that is advanced (i.e., either metastatic or recurrent tumors with no known curative treatment available). The main goals of this study are: 1. To find the best dose levels (DLs) for the combination of BNT326 and pumitamig. 2. To look at how well participants with advanced NSCLC tolerate the combination therapy (for example, which side effects participants experience and how severe they are). 3. To look at how well the combination therapy works to shrink the tumor in participants with advanced NSCLC.