Accepts Healthy Volunteers
Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms
An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.
An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.
Searching Both is inclusive of interventional and observational studies.
|Eligible Ages||18 Years and Over|
- - Written informed consent signed.
- - Crohn's disease patients with proofs of intestine stricture by other modalities, e.g. MRI, CT, ultrasound, and/or endoscopy.
- - Known hypersensitivity to any of the excipients of 18F-FDG and 68Ga-FAPI.
- - If the patients are on metformin, discontinuation of 48 hours is required before 18F-FDG injection to minimize the bowel uptake.
- - Pregnant or breast-feeding women.
- - Any mental condition rendering the patient unable to understand the nature, scope, and possible consequences of the study, and/or evidence of an uncooperative attitude.
This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.
Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.
Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.
Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.
Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.
The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.
|Peking Union Medical College Hospital|
The person who is responsible for the scientific and technical direction of the entire clinical study.
|Principal Investigator Affiliation||N/A|
Category of organization(s) involved as sponsor (and collaborator) supporting the trial.
|Overall Status||Not yet recruiting|
The disease, disorder, syndrome, illness, or injury that is being studied.
Patients with intestinal stricture will undergo 18F-FDG and 68Ga-FAPI PET/CT on two consectutive days. The accumulation of 18F-FDG and 68Ga-FAPI at the site of stricture will be determined by standard uptake value (SUV), molecular volume (MV), and total molecular index (TMI). In patients with a planned surgical resection of one or more stricture (s), the image results will be compared with histological findings.
Experimental: Crohn's disease: patients with intestinal stricture
Patients with intestinal strictures confirmed by other modalities, e.g. CT, MR, ultrasound, and endoscopy, will be recruited in the study.
Diagnostic Test: - 18F-FDG and 68Ga-FAPI PET/CT
Participants will undergo 18F-FDG (0.12-0.15mCi/kg) and 68Ga-FAPI (3-6mCi) PET/CT on two consecutive days. At least 6 hours of fast is required for 18F-FDG PET scan, while no dietary control is necessary for 68Ga-FAPI PET scan. If the patients are on metformin, discontinuation of 48 hours is required before 18F-FDG injection to minimize the bowel uptake. If the patient is planned for surgical resection of one or more stricture (s), the scans have to be completed within a maximum period of 30 days before the surgery.
This trial has no sites locations listed at this time. If you are interested in learning more, you can contact the trial's primary contact:
Wenjia Zhu, MD
For additional contact information, you can also visit the trial on clinicaltrials.gov.