A PET Imaging Agent (64Cu-DOTA-Pembrolizumab) for Determining Treatment Response Among Patients With Stage IV Non-small Cell Lung Cancer Receiving Pembrolizumab

This phase I trial studies the safety and side effects of a new positron emission tomography (PET) imaging agent called 64Cu-DOTA-pembrolizumab to see how well it works in determining treatment response for patients with stage IV non-small cell lung cancer (NSCLC) already receiving pembrolizumab. 64Cu-DOTA-pembrolizumab consists of a monoclonal antibody, pembrolizumab, that binds to a protein called PD-1 that is expressed on tumor cells. PET scans can then visualize the tumor cells using 64Cu, a radioactive substance. 64Cu-DOTA-pembrolizumab PET scans may be safe and useful to doctors in telling the difference between tumors that are still growing and areas that are not growing in patients with stage IV NSCLC receiving pembrolizumab treatment.

NCT Number	NCT07619599
Lead Sponsor	City of Hope Medical Center Collaborators: National Cancer Institute (NCI)
Conditions	Metastatic Lung Non-Small Cell Carcinoma, Metastatic Malignant Neoplasm in the Brain, Oligoprogressive Lung Non-Small Cell Carcinoma, Stage IV Lung Cancer AJCC v8
Enrollment	6 participants
Start Date	2026-09-14
Primary Completion	2028-12-22 (estimated)
Study Completion	2028-12-22 (estimated)
Updated on ClinicalTrials.gov	2026-08-12