Standardized Fecal Microbiota Transplantation for Crohn's Diseases

The present clinical trial aims to re-establish a gut functionality state of intestinal flora through FMT as a therapy for CD (all age range,HBI\>4). We established a standard microbiota isolation from donated fresh stool in lab. The microbiota is then transplanted into the intestine via endoscopy or other established methods, such as mid-gut or colonic transendoscopic enteral tubing. Patients from multi-clinical centers in this study will be assigned to receive FMT or traditional treatments according to associated guidelines and follow-up for at least one year. Blood tests, imaging, endoscopy and questionnaire will be used to assess participants at study start and at study completion.