PETCT Scan with 68Ga-FAPI-46 to Detect Fibrostenosis in Small Bowel Crohns Disease A Case-Control Study on Fibrosis Development

What this Trial Is About

Researchers are studying whether the PET radiotracer 68Ga-FAPI-46 can detect fibrostenosing Crohns disease in the small bowel. This early phase 1 case-control study aims to understand if early or developing fibrosis areas take up the tracer, which binds to fibroblast activation protein FAP. Participants with small bowel Crohns disease will be grouped based on imaging results to compare tracer uptake between those with and without strictures. Participants will receive a PETCT scan using the radioactive tracer Gallium-68-labeled fibroblast activation protein inhibitor-46 68Ga-FAPI-46, administered intravenously at a dose of 5 mCi 10%. Cases include participants with small bowel strictures or probable strictures, while controls include those without strictures but may have other disease features. This design allows researchers to investigate different stages of fibrosis development in Crohns disease. During the study, participants will complete the PETCT scan with 68Ga-FAPI-46. Researchers will monitor the completion rates of these scans over an average of 2 years. Participants will be evaluated through imaging and clinical assessments related to their Crohns disease status. Safety, tracer uptake patterns, and disease characteristics will be documented throughout the study period.

68Ga-FAPI-46 PET/CT for Assessing Small Bowel Fibrostenosis in Crohn's Disease