Inflamatory Bowel DiseaseNCT07694674
Comparison of the Efficacy of Different Biologic Agents in Preventing Postoperative Endoscopic Recurrence of Crohn's Disease
An observational study of Inflamatory Bowel Disease and Crohn Disease (CD), run by Shanghai 10th People's Hospital at 1 site in China.
Trial summary
This retrospective cohort study aims to compare the efficacy of different biologics in preventing postoperative endoscopic recurrence in Crohn's disease (CD). It plans to include 198 adult patients who underwent bowel resection and initiated prophylactic biologic therapy between January 1, 2015, and April 1, 2025. Read more about this study
- Who is it for?
- Ages 18 to 85 years
- Conditions the study is for
- Inflamatory Bowel Disease, Crohn Disease (CD)
- What is being tested?
- Infliximab, Adalimumab and Vedolizumab
- Type of treatment
- Injection or infusion
- How many people
- 198 participants
- Where
- 1 siteChina
- Study dates
- 16 Jan 2026to 31 Oct 2026
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 85 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: This retrospective cohort study will include adult patients with Crohn's disease who underwent CD-related intestinal resection at Shanghai Tenth People's Hospital between January 1, 2015 and April 1, 2025. Eligible patients initiated postoperative prophylactic biologic therapy within 6 weeks after surgery and had available postoperative follow-up data, including endoscopic assessment within 6 to 12 months after surgery or other clinical data for recurrence evaluation. Patients will be grouped according to the type of postoperative prophylactic biologic therapy, including anti-TNF biologics and non-anti-TNF biologics.
Who may be able to join
- Age ≥18 years.
- Diagnosis of Crohn's disease according to the European Crohn's and Colitis Organisation (ECCO) guideline criteria, based on clinical, laboratory, endoscopic, radiologic, and histopathologic findings.
- Underwent Crohn's disease-related intestinal resection, including ileocolonic resection, segmental small bowel resection, or segmental colonic resection.
- Initiated postoperative prophylactic biologic therapy within 6 weeks after surgery.
- Maintained postoperative prophylactic biologic therapy for at least 3 to 6 months.
- Completed at least one evaluable postoperative ileocolonoscopy within 6 to 12 months after surgery for assessment of the Rutgeerts score, or had available clinical, radiologic, ultrasonographic, or laboratory data for evaluation of clinical recurrence.
Who cannot join
- Diagnosis of other intestinal diseases, including intestinal Behçet's disease, ulcerative colitis, intestinal tuberculosis, or intestinal malignancy.
- Intestinal surgery mainly performed for non-IBD conditions, such as intestinal malignancy.
- No postoperative endoscopic evaluation within 6 to 12 months after surgery, or endoscopic quality insufficient for Rutgeerts score assessment, and lack of adequate clinical, radiologic, ultrasonographic, or laboratory data for recurrence assessment.
- Irregular use of postoperative prophylactic therapy due to severe comorbidities, serious infection, or other reasons, making treatment efficacy difficult to evaluate.
- Other conditions considered by the investigators to be inappropriate for inclusion.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
China1 site, 1 recruiting
- Recruiting
The Tenth People's Hospital of Shanghai
Shanghai, Shanghai Municipality, 201505
Xiaolei Wang, MD, PhD, 13817267967, wangxiaolei@tongji.edu.cn
wangxiaolei@tongji.edu.cn
About this study
This retrospective cohort study aims to compare the efficacy of different biologics in preventing postoperative endoscopic recurrence in Crohn's disease (CD). It plans to include 198 adult patients who underwent bowel resection and initiated prophylactic biologic therapy between January 1, 2015, and April 1, 2025. Patients will be divided into anti-TNF (e.g., infliximab, adalimumab) and non-anti-TNF (e.g., vedolizumab, ustekinumab) groups based on the biologic started within 6 weeks post-surgery. The primary outcome is endoscopic recurrence (Rutgeerts score ≥ i2) at 6-12 months postoperatively. Secondary outcomes include severe endoscopic recurrence, clinical recurrence, recurrence at different anastomotic sites, CD-related rehospitalization, reoperation, drug persistence, the POCER postoperative endoscopic index, and histopathological changes in the bowel and mesenteric fat. Subgroup analyses will explore treatment effects by recurrence risk stratification and resection extent. Using retrospective data collection, the study will apply multivariate regression and survival analysis to provide real-world evidence for optimizing postoperative biologic selection.
Read the detailed description
This study is a retrospective cohort study aiming to compare the efficacy of different biologics in preventing endoscopic recurrence after surgery for Crohn's disease (CD). It plans to include 198 adult CD patients who underwent intestinal resection and initiated prophylactic biologic therapy between January 1, 2015, and April 1, 2025. Patients will be divided into an anti-TNF group (e.g., infliximab, adalimumab) and a non-anti-TNF group (e.g., vedolizumab, ustekinumab) based on the biologic agent used within six weeks post-surgery. The primary outcome is the rate of endoscopic recurrence (Rutgeerts score ≥ i2) at 6-12 months postoperatively. Secondary outcomes include the rate of severe endoscopic recurrence, clinical recurrence, recurrence at different anastomotic sites, CD-related rehospitalization, reoperation, drug persistence, the POCER postoperative endoscopic index, and pathological changes in the intestinal tissue and mesenteric fat. Subgroup analyses will be conducted to explore differences in efficacy across varying levels of recurrence risk and resection extent. Through retrospective data collection and statistical analyses including multivariate regression and survival analysis, this study aims to provide real-world evidence to optimize the selection of postoperative biologic therapy in clinical practice.
- Conditions
- Inflamatory Bowel Disease, Crohn Disease (CD)
- Being tested
- Infliximab, Adalimumab, Vedolizumab, Ustekinumab (UST)
- Keywords
- Crohn's disease, biologics, postoperative, recurrence, efficacy
- Medical subject headings
- Crohn Disease, Recurrence
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
InfliximabBiological
Infliximab was used as postoperative prophylactic biologic therapy for Crohn's disease according to routine clinical practice. The recommended regimen was 5 mg/kg intravenously at weeks 0, 2, and 6, followed by maintenance treatment every 8 weeks.
AdalimumabBiological
Adalimumab was used as postoperative prophylactic biologic therapy for Crohn's disease according to routine clinical practice. The recommended regimen was 160 mg subcutaneously at week 0, 80 mg at week 2, and 40 mg every 2 weeks from week 4 onward.
VedolizumabBiological
Vedolizumab was used as postoperative prophylactic biologic therapy for Crohn's disease according to routine clinical practice. The recommended regimen was 300 mg intravenously at weeks 0, 2, and 6, followed by maintenance treatment every 8 weeks.
Ustekinumab (UST)Biological
Ustekinumab was used as postoperative prophylactic biologic therapy for Crohn's disease according to routine clinical practice. The recommended regimen included a weight-based intravenous induction dose, followed by 90 mg subcutaneously every 8 weeks.
| Study group | Role | What they receive |
|---|---|---|
| Postoperative anti-TNF biologics group | Patients with Crohn's disease who underwent CD-related intestinal resection and initiated postoperative prophylactic anti-TNF biologic therapy within 6 weeks after surgery, including infliximab or adalimumab. All treatments were prescribed as part of routine clinical care, and this retrospective observational study did not assign any intervention. Receives: Biological: Infliximab; Biological: Adalimumab | |
| Postoperative non-anti-TNF biologics group | Patients with Crohn's disease who underwent CD-related intestinal resection and initiated postoperative prophylactic non-anti-TNF biologic therapy within 6 weeks after surgery, including vedolizumab or ustekinumab. All treatments were prescribed as part of routine clinical care, and this retrospective observational study did not assign any intervention. Receives: Biological: Vedolizumab; Biological: Ustekinumab (UST) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Endoscopic recurrence rate
The proportion of patients with endoscopic recurrence, defined as a Rutgeerts score ≥ i2 on ileocolonoscopy performed 6 to 12 months after CD-related intestinal resection.
Measured: 6 to 12 months after surgery
Secondary outcomes (6)
Severe endoscopic recurrence rate
The proportion of patients with severe endoscopic recurrence, defined as a Rutgeerts score ≥ i3 on postoperative ileocolonoscopy.
Measured: 6 to 12 months after surgery
Clinical recurrence rate
The proportion of patients with clinical recurrence, defined as worsening Crohn's disease-related symptoms supported by endoscopic, radiologic, ultrasonographic, laboratory, or medical record evidence, or requiring treatment escalation, hospitalization, or reoperation due to Crohn's disease activity.
Measured: Up to 5 years after surgery
Long-term endoscopic recurrence rate
The proportion of patients with endoscopic recurrence during long-term follow-up, defined as a Rutgeerts score ≥ i2 on follow-up endoscopy.
Measured: 3 and 5 years after surgery
Crohn's disease-related rehospitalization rate
The proportion of patients requiring rehospitalization due to Crohn's disease activity, complications, or treatment-related problems during follow-up.
Measured: Up to 5 years after surgery
Crohn's disease-related reoperation rate
The proportion of patients requiring repeat abdominal surgery due to Crohn's disease recurrence or related complications during follow-up.
Measured: Up to 5 years after surgery
Drug persistence
Time from initiation of postoperative prophylactic biologic therapy to treatment discontinuation, switch to another biologic or immunomodulator, or discontinuation due to intolerance or adverse events.
Measured: Up to 5 years after treatment initiation
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Jul 2026
- Study start16 Jan 2026
- Primary completion30 Sep 2026 (estimated)
- Study completion31 Oct 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Inflamatory Bowel DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 198 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Shanghai 10th People's Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Xiaolei Wang, Shanghai 10th People's Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07694674
- Sponsor's protocol ID
- SHSY-IEC-6.0/26K14/P01
- Status last verified
- Jul 2026
- First submitted
- 6 Jul 2026
- Last updated
- 10 Jul 2026
- Results posted
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 10 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of the Efficacy of Different Biologic Agents in Preventing Postoperative Endoscopic Recurrence of Crohn's Disease
- ClinicalTrials.gov ID
- NCT07694674
- Acronym / sponsor ID
- SHSY-IEC-6.0/26K14/P01
- Conditions
- Inflamatory Bowel Disease, Crohn Disease (CD)
- Keywords
- Crohn's disease, biologics, postoperative, recurrence, efficacy
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 198 participants (estimated)
- Lead sponsor
- Shanghai 10th People's HospitalUniversity, hospital or other
- Study start
- 16 Jan 2026 (actual)
- Primary completion
- 30 Sep 2026 (estimated)
- Study completion
- 31 Oct 2026 (estimated)
- First posted
- 10 Jul 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This retrospective cohort study aims to compare the efficacy of different biologics in preventing postoperative endoscopic recurrence in Crohn's disease (CD). It plans to include 198 adult patients who underwent bowel resection and initiated prophylactic biologic therapy between January 1, 2015, and April 1, 2025. Patients will be divided into anti-TNF (e.g., infliximab, adalimumab) and non-anti-TNF (e.g., vedolizumab, ustekinumab) groups based on the biologic started within 6 weeks post-surgery. The primary outcome is endoscopic recurrence (Rutgeerts score ≥ i2) at 6-12 months postoperatively. Secondary outcomes include severe endoscopic recurrence, clinical recurrence, recurrence at different anastomotic sites, CD-related rehospitalization, reoperation, drug persistence, the POCER postoperative endoscopic index, and histopathological changes in the bowel and mesenteric fat. Subgroup analyses will explore treatment effects by recurrence risk stratification and resection extent. Using retrospective data collection, the study will apply multivariate regression and survival analysis to provide real-world evidence for optimizing postoperative biologic selection.
Detailed description
This study is a retrospective cohort study aiming to compare the efficacy of different biologics in preventing endoscopic recurrence after surgery for Crohn's disease (CD). It plans to include 198 adult CD patients who underwent intestinal resection and initiated prophylactic biologic therapy between January 1, 2015, and April 1, 2025. Patients will be divided into an anti-TNF group (e.g., infliximab, adalimumab) and a non-anti-TNF group (e.g., vedolizumab, ustekinumab) based on the biologic agent used within six weeks post-surgery. The primary outcome is the rate of endoscopic recurrence (Rutgeerts score ≥ i2) at 6-12 months postoperatively. Secondary outcomes include the rate of severe endoscopic recurrence, clinical recurrence, recurrence at different anastomotic sites, CD-related rehospitalization, reoperation, drug persistence, the POCER postoperative endoscopic index, and pathological changes in the intestinal tissue and mesenteric fat. Subgroup analyses will be conducted to explore differences in efficacy across varying levels of recurrence risk and resection extent. Through retrospective data collection and statistical analyses including multivariate regression and survival analysis, this study aims to provide real-world evidence to optimize the selection of postoperative biologic therapy in clinical practice.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Postoperative anti-TNF biologics group | – | Biological: Infliximab, Biological: AdalimumabPatients with Crohn's disease who underwent CD-related intestinal resection and initiated postoperative prophylactic anti-TNF biologic therapy within 6 weeks after surgery, including infliximab or adalimumab. All treatments were prescribed as part of routine clinical care, and this retrospective observational study did not assign any intervention. |
| Postoperative non-anti-TNF biologics group | – | Biological: Vedolizumab, Biological: Ustekinumab (UST)Patients with Crohn's disease who underwent CD-related intestinal resection and initiated postoperative prophylactic non-anti-TNF biologic therapy within 6 weeks after surgery, including vedolizumab or ustekinumab. All treatments were prescribed as part of routine clinical care, and this retrospective observational study did not assign any intervention. |
Who may qualify
- Ages
- 18 to 85 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- This retrospective cohort study will include adult patients with Crohn's disease who underwent CD-related intestinal resection at Shanghai Tenth People's Hospital between January 1, 2015 and April 1, 2025. Eligible patients initiated postoperative prophylactic biologic therapy within 6 weeks after surgery and had available postoperative follow-up data, including endoscopic assessment within 6 to 12 months after surgery or other clinical data for recurrence evaluation. Patients will be grouped according to the type of postoperative prophylactic biologic therapy, including anti-TNF biologics and non-anti-TNF biologics.
Key inclusion criteria (6 listed)
- Age ≥18 years.
- Diagnosis of Crohn's disease according to the European Crohn's and Colitis Organisation (ECCO) guideline criteria, based on clinical, laboratory, endoscopic, radiologic, and histopathologic findings.
- Underwent Crohn's disease-related intestinal resection, including ileocolonic resection, segmental small bowel resection, or segmental colonic resection.
- Initiated postoperative prophylactic biologic therapy within 6 weeks after surgery.
- Maintained postoperative prophylactic biologic therapy for at least 3 to 6 months.
Key exclusion criteria (5 listed)
- Diagnosis of other intestinal diseases, including intestinal Behçet's disease, ulcerative colitis, intestinal tuberculosis, or intestinal malignancy.
- Intestinal surgery mainly performed for non-IBD conditions, such as intestinal malignancy.
- No postoperative endoscopic evaluation within 6 to 12 months after surgery, or endoscopic quality insufficient for Rutgeerts score assessment, and lack of adequate clinical, radiologic, ultrasonographic, or laboratory data for recurrence assessment.
- Irregular use of postoperative prophylactic therapy due to severe comorbidities, serious infection, or other reasons, making treatment efficacy difficult to evaluate.
- Other conditions considered by the investigators to be inappropriate for inclusion.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| InfliximabInfliximab was used as postoperative prophylactic biologic therapy for Crohn's disease according to routine clinical practice. The recommended regimen was 5 mg/kg intravenously at weeks 0, 2, and 6, followed by maintenance treatment every 8 weeks. | Biological | Postoperative anti-TNF biologics group |
| AdalimumabAdalimumab was used as postoperative prophylactic biologic therapy for Crohn's disease according to routine clinical practice. The recommended regimen was 160 mg subcutaneously at week 0, 80 mg at week 2, and 40 mg every 2 weeks from week 4 onward. | Biological | Postoperative anti-TNF biologics group |
| VedolizumabVedolizumab was used as postoperative prophylactic biologic therapy for Crohn's disease according to routine clinical practice. The recommended regimen was 300 mg intravenously at weeks 0, 2, and 6, followed by maintenance treatment every 8 weeks. | Biological | Postoperative non-anti-TNF biologics group |
| Ustekinumab (UST)Ustekinumab was used as postoperative prophylactic biologic therapy for Crohn's disease according to routine clinical practice. The recommended regimen included a weight-based intravenous induction dose, followed by 90 mg subcutaneously every 8 weeks. | Biological | Postoperative non-anti-TNF biologics group |
Primary outcome
Endoscopic recurrence rate
Time frame: 6 to 12 months after surgery
The proportion of patients with endoscopic recurrence, defined as a Rutgeerts score ≥ i2 on ileocolonoscopy performed 6 to 12 months after CD-related intestinal resection.
6 secondary outcomes
Severe endoscopic recurrence rate
Time frame: 6 to 12 months after surgery
Clinical recurrence rate
Time frame: Up to 5 years after surgery
Long-term endoscopic recurrence rate
Time frame: 3 and 5 years after surgery
Crohn's disease-related rehospitalization rate
Time frame: Up to 5 years after surgery
Crohn's disease-related reoperation rate
Time frame: Up to 5 years after surgery
Drug persistence
Time frame: Up to 5 years after treatment initiation
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Jul 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Inflamatory Bowel Disease and Crohn Disease (CD), run by Shanghai 10th People's Hospital at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 10 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Endoscopic recurrence rate (time frame: 6 to 12 months after surgery). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Jul 2026.