Stem Cell Fistula Plug in Perianal Crohn's Disease

• Males and females 18-65 years of age.
• Residents of the United States.
• Crohn's disease with single or multiple draining complex perianal fistulae (definition as below) for at least three months despite standard therapy (definition below).
• Concurrent therapies with corticosteroids, 5-ASA drugs, thiopurines, MTX, antibiotics, and anti-TNF therapy are permitted.
• All patients should have undergone a colonoscopy in last 12 months to rule out malignant or premalignant condition
• Have no contraindications to MR evaluations: e.g. pacemaker or magnetically active metal fragments, claustrophobia
• Ability to comply with protocol
• Competent and able to provide written informed consent
• Must have failed standard medical therapy including anti-TNF agents

Exclusion Criteria

• Inability to give informed consent.
• Clinically significant medical conditions within the six months before administration of MSCs: e.g. myocardial infarction, active angina, congestive heart failure or other conditions that would, in the opinion of the investigators, compromise the safety of the patient.
• Specific exclusions: Evidence of hepatitis B, C, or HIV
• History of cancer including melanoma (with the exception of localized skin cancers)
• Investigational drug within thirty (30) days of baseline
• A resident outside the United States
• Pregnant or breast feeding.
• History of clinically significant auto-immunity (other than Crohn's disease) or any previous example of fat-directed autoimmunity
• Previous allergic reaction to a perianal fistula plug.
• If liposuction is not technically feasible
• Allergic to local anesthetics
• Pregnant patients or trying to become pregnant.
• Non-enterocutaneous tracts (ie recto-vaginal, entero-vesicular)