Standardized Microbiota Transplant Therapy in Crohn's Disease

Inclusion Criteria: * Able and willing to provide informed consent. * 18-89 years of age. * English speaking. * Diagnosis of CD based on typical clinical and histologic features. * Active disease on endoscopy: * SES-CD \>= 6 * SES-CD \>= 4 for isolated ileal disease * Current CD therapies are in the maintenance phase of dosing at the time of randomization. * Any ongoing CD therapy (apart from steroid use) must be at stable doses for 4 weeks prior to randomization and remain stable over study course. * Steroid use 20mg or less by 5 days prior to randomization. * Steroid use stipulations: * Prednisone must be tapered below 20mg after 7 days. * Any use of budesonide over the study period is allowed although tapering is encouraged. * Rescue medications: Steroid courses (up to 40mg for two weeks with a planned taper) are allowed at the discretion of the treating provider. Study drug therapy will be stopped on a case-by-case basis on discussion with the participant and treating provider. * Women who are not post-menopausal (at least 12 months of non-therapy induced amenorrhea) or surgically sterile (e.g., absence of ovaries and/or uterus) must remain abstinent or use a highly effective form of birth control (e.g., oral contraception, transdermal patch, barrier, intrauterine device). o Periodic abstinence and early withdraw are not acceptable methods. * Able to comply with study measures in the opinion of the investigator. Exclusion Criteria: * Extensive bowel resection: …