[68Ga]Ga DOTA-5G as a Diagnostic Imaging Agent for Metastatic/Advanced Invasive Lobular Breast Cancer (LBC)

This is a phase I investigator-initiated study that will investigate \[68Ga\]Ga DOTA-5G in patients with metastatic/advanced invasive LBC. 30 patients diagnosed with LBC will be enrolled over a 24-month period. We hypothesize that a) \[68Ga\]Ga DOTA-5G will detect lesions in patients with invasive LBC, b) \[68Ga\]Ga DOTA-5G will be safe and well tolerated, and that c) \[68Ga\]Ga DOTA-5G PET/CT is more sensitive than 18F-FDG PET/CT at detecting lesions.