Please select the eligibility criteria that correspond to the clinical trial below.
Title: Efficacy, Durability and Safety of Standardized Fecal Microbiota Transplantation in Patients With Moderate to Severe Ulcerative Colitis
Brief Summary: The gut microbiota is considered to constitute a "microbial organ" which has pivotal roles in the intestinal diseases and body's metabolism. Evidence from animal and human studies strongly supports the link between intestinal bacteria and inflammatory bowel diseases (IBD). Dozens of studies reported its efficacy in treatment of severe Clostridium difficile colitis. Preliminary studies using FMT for Ulcerative Colitis (UC), Crohn's diseases, irritable bowel syndrome (IBS) and constipation have also met with some success. This is an initial step into investigating the potential efficacy of standardized fecal bacteriotherapy through mid-gut (at least below duodenal papilla) for UC, the investigators propose to determine the efficiency and safety of FMT in a series of 500 patients with moderate to severe UC (Montreal classification).


Options:
A: Inclusion Criteria:

1. Patients aged 18 or over
2. Active UC defined as a Mayo score \> 3
3. A Mayo endoscopic score \> 0

Exclusion Criteria:

1. Participating in another clinical trial
2. Unable to give informed consent
3. Severe co-morbid medical illness
4. Concomitant Clostridium difficile infection
5. Severe UC requiring hospitalization.
6. Increase in medical therapy for UC in the last 12 weeks. Continued treatment with 5-ASA, azathioprine, 6-mercaptopurine or anti-TNF alpha therapy (e.g. infliximab) will be permitted if taken at stable dose for ≥12 weeks prior to randomization. Relapse on a stable dose (same dose for at least 2 weeks) or a tapering dose of steroids will also be permitted provided the dose of steroid is not increased again. Stable intake of probiotic therapy also permitted.
7. Antibiotic therapy in the last 30 days.
8. Pregnant women.
B: Inclusion Criteria:

Patients who had been diagnosed with UC through a combination of typical clinical symptoms, endoscopy, and histological criteria for at least 3 months, and patients who failed to achieve satisfactory efficacy for UC from the previous therapies.

Exclusion Criteria:

Patients were excluded if accompanied by other severe diseases, including other intestinal diseases (e.g., Clostridioides difficile infection), malignant neoplasm, cardiopulmonary failure, and serious liver and kidney disease, refused to complete the follow-up, and underwent FMT or WMT before.
C: Inclusion Criteria:

for UC

1. Patients should be in the age range of 18 - 70 years;
2. Patients should have clinical, imaging, endoscopic and histological diagnosis of UC;
3. Patients should have a UCDAI score of more than 2 and less than 10 or stage at S1/S2 in Montreal Rank at enrollment;
4. Patients receiving a stable dose of concomitant medication (aminosalicylates, oral corticosteroids) for at least 4 weeks are eligible;
5. Patients are capable of providing written informed consent and obtained at the time of enrollment;
6. Patients are willing to adhere to the study visit schedule and other protocol requirements.

for CD:

1. Patients should be in the age range of 18 - 40 years;
2. Patients should have clinical, imaging, endoscopic and histological diagnosis of early CD\*;
3. Patients should have a CDAI score of more than 150 and less than 400and have a C-reactive protein (CRP) level of more than10mg/L at enrollment;
4. Patients receiving a stable dose of concomitant medication (aminosalicylates, oral corticosteroids) for at least 4 weeks are eligible;
5. Patients are capable of providing written informed consent and obtained at the time of enrollment;
6. Patients are willing to adhere to the study visit schedule and other protocol requirements.

Exclusion Criteria:

1. Women who are pregnant or lactating at the time of enrollment, or who intend to be during the study period
2. Patients may confuse the findings or there exist any other additional risk history
3. Patients with end-stage disease or is expected likely to die during the study
4. Patients are participating in other clinical trials or participated within 3 months prior to transplantation
5. Outbreaks, infectious (viruses, bacteria, parasites, or other microorganisms) colitis, scheduled for abdominal surgery,take probiotics / prebiotics / synbiotics / antibiotic / PPI (past 1 month) orally, severe anemia (Hbg \<6g/dl), heart cerebrovascular accident, bypass, stent implantation surgery in the last 6 months, coagulation disorders, immune suppression status (defined as: immunosuppressive drugs, a history of opportunistic infections within one year recurrent ,oral ulcers, multiple lymphadenopathy, neutropenia, etc.), major abdominal transplant surgery in the last 3 months, have took TNF-α monoclonal antibody 2 month before transplantation or planned to take within one month after transplantation, a history of megacolon -
D: Inclusion Criteria:

* Men or women 18-75 years of age.
* Established diagnosis of ulcerative colitis (UC) with known involvement of the left colon
* Mild to moderate disease defined as endoscopic evidence of disease with Mayo endoscopic sub-score 1 or 2 and total MAYO score ranging from 4-10. (The Mayo score ranges from 0 to 12, with higher scores indicating more severe disease. This score can be used for both initial evaluation and monitoring treatment response).
* Patients may be on any class of IBD-related medication (excluding steroids)
* Patients must be on stable medication regimen for at least 6 weeks prior to enrollment.
* Ability to understand and willingness to sign informed consent document

Exclusion Criteria:

* Patient who are asymptomatic
* Patients with severe, refractory disease (defined as Mayo scores of \> 10, or endoscopic disease activity score of \> 3) or patients with any other significant condition which, in the opinion of the investigator, could confound or interfere with evaluation of safety, tolerability of the investigational treatment or prevent compliance with the study protocol
* Prior colectomy
* Positive stool test for any of the following: Clostridium difficile by PCR, Salmonella, Shigella, Yersinia, Campylobacter, enteropathogenic E. coli by standard stool culture.
* Use of the steroid medications (any formulation) in the prior 6 weeks to enrollment
* Systemic antibiotic use within prior 6 weeks to enrollment
* Regular probiotic supplement use within prior 48 hours to enrollment
* Pregnancy or breastfeeding
* Severe immunodeficiency, inherited or acquired (e.g. HIV, chemotherapy, or radiation therapy)
* History of anaphylaxis (severe allergic reaction)
* Documented allergy to fluoroquinolones, metronidazole
* Life expectancy less than 12 months
* Age less than 18 or greater than 75 years of age
* History of esophageal or gastric motility disorders.

Answer: B