Ulcerative ColitisPhase 4NCT05481619
Study of the Effect of Vedolizumab on Intestinal Microecological Changes and Its Efficacy in the Treatment of Ulcerative Colitis
A Phase 4 study testing Vedolizumab in people with Ulcerative Colitis, run by Second Affiliated Hospital, Zhejiang University, School of Medicine at 1 site in China.
Trial summary
Inflammatory bowel disease is a group of chronic, non-specific inflammatory diseases of the intestinal tract whose etiology has not yet been fully elucidated, including ulcerative colitis and Crohn's disease. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Ulcerative Colitis
- What is being tested?
- Vedolizumab
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteChina
- Study dates
- 1 Jan 2021to 1 Jan 2026
- Phase
- Phase 4
- 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 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- 18 years of age or older, with moderate to severe ulcerative colitis, with an indication for vedolizumab treatment;
- Consent to participate in the study, read and sign the informed consent form;
- No previous treatment with vedolizumab;
- Never undergone biologic therapy or at least suspended previous biologic therapy for more than 12 weeks;
- Not taking antibiotics or probiotics within the past 4 weeks.
Who cannot join
- younger than 18 years of age;
- pregnant or breastfeeding women;
- patients who require the assistance of a surrogate, witness, or who are otherwise unable to complete the trial unaided;
- other conditions that, in the opinion of the investigator, are unsuitable for enrollment or affect the subject's ability to complete the study;
- have taken antibiotics or probiotics within the past 4 weeks;
- have received prior treatment with vedolizumab.
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
Second Affiliated Hospital Zhejiang University School of Medicine
Zhengzhou, Hangzhou, 310000
Qiao Yu, PhD, 13456820567, yuqiao@zju.edu.cn
About this study
Official title: Changes in Intestinal Microecology Before and After Vedolizumab Treatment for Ulcerative Colitis and Correlation With Efficacy
Inflammatory bowel disease is a group of chronic, non-specific inflammatory diseases of the intestinal tract whose etiology has not yet been fully elucidated, including ulcerative colitis and Crohn's disease. Vedolizumab, a novel biologic agent, is a recombinant humanized monoclonal antibody that specifically antagonizes intestine-selective α4β7 integrins on the surface of leukocyte subsets, thereby preventing migration of leukocyte subsets from the blood to the intestinal mucosa and reducing local inflammation in the gut. In this study the investigators propose to build on an existing cohort and analyse, by means of a multi-omics approach, the baseline gut microbial composition and abundance, intestinal and serum metabolome characteristics of UC patients and their changes during treatment, to predict the functional mechanisms by which these changing characteristics influence the therapeutic response to vindolizumab.
Read the detailed description
Stool and blood samples etc. were taken from a cohort of patients with ulcerative colitis treated with Vedolizum at the Department of Gastroenterology, Second Affiliated Hospital of Zhejiang University School of Medicine as well as from a cohort of normal volunteers. Stool and blood samples from UC patients were analyzed at baseline and at 14, 30, and 52 weeks after starting treatment. Analysis of changes in gut microbial composition and abundance, gut and serum metabolome characteristics during 52 weeks of treatment in patients with UC. A model for predicting the efficacy of vedolizumab treatment by baseline gut microbial composition and abundance, and gut and serum metabolomic characteristics in patients with ulcerative colitis was developed in conjunction with clinical information from patients in the cohort. Based on the model developed, clinical and gut microbial composition and abundance, gut and serum metabolomics data from other UC patients published in public databases were combined to confirm the results already found using the UC cohort at our center.
- Conditions
- Ulcerative Colitis
- Being tested
- Vedolizumab
- Medical subject headings
- Colitis, Ulcerative
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
VedolizumabDrug
Recommended dose in patients with UC: 300 mg intravenously at weeks 0, 2, and 6 and every 8 weeks thereafter.
Discontinue vedolizumab at week 14 in patients who do not show treatment benefit.
| Study group | Role | What they receive |
|---|---|---|
| Group of UC patients treated with vedolizumab | Active comparator | Generic Name：vedolizumab Specification：300mg/bottle Dosage and Method of Administration：Usual adult dose for ulcerative colitis.300 mg IV every 30 minutes at weeks 0, 2, and 6, then every 8 weeks Receives: Drug: Vedolizumab |
| Normal control group | No intervention | On the basis of the exclusion criteria, there are no significant intestinal inflammatory, autoimmune or neoplastic disorders. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Remission rate of patients
Clinical remission response rates（Mayo score≤2）
Measured: 1 year
Secondary outcomes (2)
Baseline gut microbial composition and abundance of patients
Macro-genome sequencing of stool samples to analyze gut microbial composition and abundance
Measured: 1 year
Gut and serum metabolome characteristics of UC patients
LC-MS mass spectrometry for faecal samples and serum samples to analyze metabolome characteristics
Measured: 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Aug 2022
- Study start1 Jan 2021
- Primary completion1 Jan 2026 (estimated)
- Study completion1 Jan 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Ulcerative ColitisStudies of the same condition, open and under way.
- More trials run by Second Affiliated Hospital, Zhejiang University, School of MedicineThe sponsor's other registered studies.
- 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
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 30 participants (estimated)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Yan Chen, Principal investigator, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, China
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05481619
- Sponsor's protocol ID
- I20210001091
- Status last verified
- Jul 2025
- First submitted
- 25 Jul 2022
- Last updated
- 25 Jul 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: The results can be shared
Study at a glance
From the registry record, last updated by the sponsor on 25 Jul 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Changes in Intestinal Microecology Before and After Vedolizumab Treatment for Ulcerative Colitis and Correlation With Efficacy
- ClinicalTrials.gov ID
- NCT05481619
- Acronym / sponsor ID
- I20210001091
- Conditions
- Ulcerative Colitis
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 30 participants (estimated)
- Lead sponsor
- Second Affiliated Hospital, Zhejiang University, School of MedicineUniversity, hospital or other
- Study start
- 1 Jan 2021 (actual)
- Primary completion
- 1 Jan 2026 (estimated)
- Study completion
- 1 Jan 2026 (estimated)
- First posted
- 1 Aug 2022 (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.
Inflammatory bowel disease is a group of chronic, non-specific inflammatory diseases of the intestinal tract whose etiology has not yet been fully elucidated, including ulcerative colitis and Crohn's disease. Vedolizumab, a novel biologic agent, is a recombinant humanized monoclonal antibody that specifically antagonizes intestine-selective α4β7 integrins on the surface of leukocyte subsets, thereby preventing migration of leukocyte subsets from the blood to the intestinal mucosa and reducing local inflammation in the gut. In this study the investigators propose to build on an existing cohort and analyse, by means of a multi-omics approach, the baseline gut microbial composition and abundance, intestinal and serum metabolome characteristics of UC patients and their changes during treatment, to predict the functional mechanisms by which these changing characteristics influence the therapeutic response to vindolizumab.
Detailed description
Stool and blood samples etc. were taken from a cohort of patients with ulcerative colitis treated with Vedolizum at the Department of Gastroenterology, Second Affiliated Hospital of Zhejiang University School of Medicine as well as from a cohort of normal volunteers. Stool and blood samples from UC patients were analyzed at baseline and at 14, 30, and 52 weeks after starting treatment. Analysis of changes in gut microbial composition and abundance, gut and serum metabolome characteristics during 52 weeks of treatment in patients with UC. A model for predicting the efficacy of vedolizumab treatment by baseline gut microbial composition and abundance, and gut and serum metabolomic characteristics in patients with ulcerative colitis was developed in conjunction with clinical information from patients in the cohort. Based on the model developed, clinical and gut microbial composition and abundance, gut and serum metabolomics data from other UC patients published in public databases were combined to confirm the results already found using the UC cohort at our center.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Group of UC patients treated with vedolizumab | Active comparator | Drug: VedolizumabGeneric Name：vedolizumab Specification：300mg/bottle Dosage and Method of Administration：Usual adult dose for ulcerative colitis.300 mg IV every 30 minutes at weeks 0, 2, and 6, then every 8 weeks |
| Normal control group | No intervention | –On the basis of the exclusion criteria, there are no significant intestinal inflammatory, autoimmune or neoplastic disorders. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- 18 years of age or older, with moderate to severe ulcerative colitis, with an indication for vedolizumab treatment;
- Consent to participate in the study, read and sign the informed consent form;
- No previous treatment with vedolizumab;
- Never undergone biologic therapy or at least suspended previous biologic therapy for more than 12 weeks;
- Not taking antibiotics or probiotics within the past 4 weeks.
Key exclusion criteria (6 listed)
- younger than 18 years of age;
- pregnant or breastfeeding women;
- patients who require the assistance of a surrogate, witness, or who are otherwise unable to complete the trial unaided;
- other conditions that, in the opinion of the investigator, are unsuitable for enrollment or affect the subject's ability to complete the study;
- have taken antibiotics or probiotics within the past 4 weeks;
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 |
|---|---|---|
| VedolizumabRecommended dose in patients with UC: 300 mg intravenously at weeks 0, 2, and 6 and every 8 weeks thereafter. Discontinue vedolizumab at week 14 in patients who do not show treatment benefit. | Drug | Group of UC patients treated with vedolizumab |
Primary outcome
Remission rate of patients
Time frame: 1 year
Clinical remission response rates（Mayo score≤2）
2 secondary outcomes
Baseline gut microbial composition and abundance of patients
Time frame: 1 year
Gut and serum metabolome characteristics of UC patients
Time frame: 1 year
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 25 Jul 2025.
- Individual participant dataSharing planned: Yes. The results can be shared
Related trials for Ulcerative Colitis
Not yet recruitingPhase 1
An Open-label, DDI Study to Investigate the Effects of Duvakitug on the PK of Selected Cytochrome P450 Substrates
Ulcerative Colitis, Crohn's Disease
RecruitingObservational study
Longitudinal Immunophenotyping of Patients With Inflammatory Bowel Disease
Inflammatory Bowel Disease, Crohn's Disease
RecruitingObservational study
Ibd CAncer and seRious Infections in France (I-CARE 2)
IBD, Ulcerative Colitis
RecruitingObservational study
Characterization of Colorectal Dysplasic Lesions and Stratification of Their Evolving Risk in Inflammatory Bowel Disease Patients: a Prospective, Observational and Multicenter Study
Crohn Disease (CD), Colitis Ulcerative
Enrolling by invitationPhase 4
MOdel-Informed Precision Dosing of Ustekinumab and VEdolizumab in Inflammatory Bowel Disease
Inflammatory Bowel Diseases, Crohn Disease
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.
Yan Chen principal investigator
2nd Affiliated Hospital, School of Medicine, Zhejiang University, China
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Vedolizumab in people with Ulcerative Colitis, run by Second Affiliated Hospital, Zhejiang University, School of Medicine 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 5 inclusion and 6 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 25 Jul 2025. 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.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
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?
Contact Qiao Yu, phd (0086-13456820567, yuqiao@zju.edu.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Remission rate of patients (time frame: 1 year). 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 25 Jul 2025.