FAPI-PET for Tumor Detection

68-Ga-FAPI-PET for Tumor Detection: A Prospective Observational Trial

This is a prospective observational trial investigating correlation with histopathology, positive predictive value, detection rate, reproducibility and impact on clinical management of 68-Ga-FAPI PET/CT or PET/MRI in patients receiving this imaging modality for tumor staging or restaging as part of clinical care.

68-Ga-fibroblast-activation-protein-inhibitors (68-Ga-FAPI) are novel Positron emission tomography (PET) tracers that were recently introduced for the imaging of patients with various cancer diseases. The fibroblast-activation-protein (FAP) is highly expressed in carcinoma-associated fibroblasts (CAFs) in the stroma of various tumor entities. The aim of this registry study is to collect data on FAPI expression, positive predictive value, detection rate, reproducibility and impact on clinical management of 68-Ga-FAPI PET/CT or PET/MRI on patients receiving this imaging modality at initial diagnosis or restaging as part of clinical care.

Inclusion Criteria:

1. FAPI-PET scheduled for staging or restaging as part of clinical routine for proven or suspected malignancy
2. Age ≥ 18 years.

Exclusion Criteria:

1. Patient cannot give consent for the study
2. Patient can not lie flat or tolerate FAPI PET imaging
3. Unwillingness or inability to comply with study and follow-up procedures
4. Condition of patient which is critical to participate in this study in the discretion of the investigators
5. Pregnant, lactating, or breast feeding women.