Assessment of Patients Immune Response After Treatment With Engineered Tumor Infiltrating Lymphocyte Therapy Incorporating CD8 PET Imaging

Inclusion Criteria: * Patient must be 18 years of age or older at the time of signing the informed consent. * Patient has a histologically confirmed diagnosis of metastatic non-small cell lung cancer * Patient is enrolled in the engineered TIL cell therapy protocol OBX115-23-01, but has not received the treatment yet. * Men and women of child-producing potential, use of effective double barrier contraceptive methods during the study, up to 30 days after the last administration of the investigational product. * Patient or legally authorized representative provided signed informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol. * Patient or legally authorized representative provided written authorization for use and disclosure of protected health information. Exclusion Criteria: * Pregnant or breastfeeding women * Patients with a history of splenectomy or significant splenic dysfunction (e.g., as evidenced by splenomegaly or a history of recurrent infections due to impaired immune function)