Active Surgical Intervention on Crohn's Disease

Study Purpose

The study is to determine whether active surgical intervention promotes disease remission in patients with Crohn's Disease (CD).The management of CD involves both maintenance medication and medication used to control flares of the disease. The goal of maintenance therapy in CD is to maintain steroid- free remission, clinically and endoscopically. This requires regular clinical assessment including history, physical examination and at times colonoscopic examination. Other tools of assessment include blood (e.g. CRP, WCC) and stool (calprotectin) testing for inflammatory markers and imaging including MRI, CT or ultrasound. The choice of maintenance treatment in CD is determined by disease extent, disease course (frequency of flares), failure of previous maintenance treatment, severity of the most recent flare, treatment used for inducing remission during the most recent flare, safety of maintenance treatment, and cancer prevention. The mainstay of maintenance medication are the 5-aminosalicylic acid compounds (5-ASA) such as mesalazine or sulphasalazine. These compounds are commonly taken orally in formulations that predominantly deliver the active 5-ASA component to the colon. Alternatively, or in addition, mesalazine preparations can be delivered topically via enema or suppository if the disease only involves the left side of the colon (although it is only PBS funded for topical therapy during a flare and not for maintenance of remission

  • - even though it also works in this setting).
The majority of patients can be managed with maintenance 5-ASA compounds most of the time. For patients who have repeated flares of disease on 5-ASA maintenance therapy (1 or more flares in a year needing steroids), thiopurine medication such as azathioprine or 6-mercapropurine should be used. These medications induce systemic immunosuppression, reduce the incidence and severity of flares of colitis but also slightly increase the risk of some infections and malignancy. Anti TNF agents such as infliximab or adalimumab have been shown to have benefit in maintaining remission in CD (and are licensed for this indication by the TGA), however these agents are very expensive and not funded by the pharmaceutical benefits scheme in Australia and so, are not readily available. The anti TNF agents also give an increased risk of infection, particularly latent TB reactivation. Mild flares of CD can be managed with higher doses of oral 5-ASA compounds or the addition of topical 5-ASAs given via enema or suppository. More severe flares are usually managed with a course of systemic corticosteroid. These can be given intravenously in acute, severe disease or orally in less severe flares. The steroids should then be tapered over time and discontinued. There is no indication for long term steroid use in CD and prolonged steroid use is associated with a number of complications including infection, osteoporosis, obesity, diabetes, poor wound healing, thinning skin, mood changes and insomnia. Severe flares of CD not responsive to steroids may respond to rescue therapy with the addition of either cyclosporin or anti-TNF therapy. Patients in whom colonic inflammation cannot be controlled adequately frequently undergo total colectomy. This may be done electively (for refractory disease) or emergently in acute fulminant colitis. Colectomy entails surgical risk that is higher in the emergent setting; this risk includes infection, wound breakdown and a mortality rate. Colectomy is considered "curative" for CD especially if they have an ileostomy stoma created, however, it frequently also leads to complications both short- and long-term. In addition, in patients in whom an ileal-anal pouch is fashioned up to 50% will subsequently develop pouchitis at 4 years post surgery. Patient eligibility was determined during a 5-week screening period, during which time details on patient demographics, medical history, and previous and concomitant medications were obtained,and the following assessments were completed: viral serology, stool culture, Crohn's Disease Activity Index (CDAI) patient diary and clinical score, Simple Endoscopic Score for Crohn's Disease (SES-CD), colonoscopy and colonic biopsy, stool collection for faecal biomarkers, vital signs, and laboratory evaluations. All participants need to be subjected to rigorous assessments mentioned above at week 4, week 8 and week 12 after receiving active surgical intervention (two kinds: one is colostomy, and the other one is colonic exclusion).

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

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 - 75 Years
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

1. Moderate to severe active CD (CDAI ≥ 150) 2. Endoscopic subscore meet the criteria (SES-CD ≥ 4) 3. Patients aged 18 to 75 years with established diagnosis of CD.

Exclusion Criteria:

1. Mild active CD (CDAI < 150) 2. More than 25mg of prednisolone per day (or equivalent steroid) 3. Previous colonic surgery. 4. Active gastrointestinal infection. 5. Pregnancy. 6. Anticoagulant therapy or duel antiplatelet therapy (i.e. aspirin and clopidogrel) 7. Current use of antibiotics. 8. Anti-TNF therapy

Trial Details

Trial ID:

This trial id was obtained from, 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.

Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Wuxi People's Hospital
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Peihua Lu, PhD, MD
Principal Investigator Affiliation The Affiliated Wuxi People's Hospital of Nanjing Medical University
Agency Class

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.

Crohn Disease
Arms & Interventions


Other: active enterostomy

active enterostomy before serious complications


Procedure: - active surgical intervention

two kinds: one is colostomy, and the other one is colonic exclusion

Contact Information

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:

Wei Shen, PhD, MD

+86 133 5811 0723

For additional contact information, you can also visit the trial on