Selection and Efficacy-Influencing Factors of First-Line Biologic Agents in Moderate-to-Severe Ulcerative Colitis

July 1, 2025 updated by: Yongquan Shi, Xijing Hospital of Digestive Diseases

Selection and Efficacy-Influencing Factors of First-Line Biologic Agents in Moderate-to-Severe Ulcerative Colitis: A Prospective, Multi-Center, Real-World Study

The purpose of this prospective, multicenter, real-world study is to compare the efficacy differences and influencing factors of different first-line biologics in patients with moderate to severe ulcerative colitis. The question that this study aims to answer is: When treating patients with moderate to severe ulcerative colitis, should IFX or VDZ be prioritized as the first-line choice for biologics?, Which biological agent has better therapeutic effect?. Researchers will observe and follow up with patients with moderate to severe ulcerative colitis treated with different biologics on the front line, evaluate their condition changes, eliminate relevant interfering factors, and draw the final conclusion.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
400

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Xi'an
      • ShanXi, Xi'an, China, 710032
        • Recruiting
        • Xijing Hospital of Digestive Diseases
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Moderate to severe UC patients treated with biological agents in the Xijing Hospital of Digestive Diseases

Description

Inclusion Criteria:

  • Age range of 18-70 years old, gender not limited;
  • According to international guidelines and consensus, patients with ulcerative colitis should be diagnosed to exclude radiation enteritis, infectious enteritis, tumor related diseases, etc;
  • Patients assessed as moderate to severe ulcerative colitis based on the Mayo score;
  • During the follow-up period, no relevant treatments (drugs and surgery) were used that could affect the assessment of the efficacy of biologics

Exclusion Criteria:

  • Patients with hemodynamic instability;
  • Patients with obvious liver and kidney function injury: bilirubin, aminotransferase (ALT, AST) exceeded the upper limit of normal by 2 times; eGFR<60ml/min or dialysis patients;
  • Patients allergic to IFX or VDZ;
  • Patients whose primary disease was gastrointestinal malignancy;
  • Patients currently suffering from serious or uncontrolled underlying diseases of the blood, digestive tract, metabolism, endocrine, lung, heart, nervous system, mental system, etc.;
  • Female patients during pregnancy and breastfeeding (including patients with reproductive needs);
  • Patients with current infection with infectious diseases (hepatitis B, hepatitis C, syphilis, AIDS, tuberculosis, etc.);
  • Patients who cannot cooperate with regular follow-up and review of laboratory indicators;
  • Any other circumstances which, in the opinion of the investigator, would render the subject unfit for study inclusion.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
The IFX group
The first-line use of IFX group regularly uses IFX treatment for 3 cycles before continuing to use IFX or adjusting to VDZ treatment.
Drug: first-line biologic：IFX
IFX is administered intravenously at a dose of 5-10mg/kg, once at weeks 0, 2, and 6 (or 0, 1, and 5), and then every 8 weeks at a dose of 5mg/kg for maintenance treatment. VDZ is administered intravenously at a dose of 300mg/time, once at weeks 0, 2, and 6, and then every 8 weeks at a dose of 300mg for maintenance treatment.
The VDZ group
The first-line use of VDZ group regularly uses VDZ treatment for 3 cycles before continuing to use VDZ or adjusting to IFX treatment.
Drug: first-line biologic:VDZ
IFX is administered intravenously at a dose of 5-10mg/kg, once at weeks 0, 2, and 6 (or 0, 1, and 5), and then every 8 weeks at a dose of 5mg/kg for maintenance treatment. VDZ is administered intravenously at a dose of 300mg/time, once at weeks 0, 2, and 6, and then every 8 weeks at a dose of 300mg for maintenance treatment.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Clinical remission rates and endoscopic remission rates at 14 weeks, 30 weeks, 52 weeks, and 2 years after first-line biologics treatment
Time Frame: From enrollment to the end of treatment at 2 years.
Evaluate the clinical remission rate and endoscopic remission rate of first-line biologics treatment at 14 weeks, 30 weeks, 52 weeks, and 2 years based on the Mayo scoring system and endoscopic examination results
From enrollment to the end of treatment at 2 years.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Clinical response rate, endoscopic response rate, and hormone free response rate at 14 weeks, 30 weeks, 52 weeks, and 2 years after first-line biologics treatment
Time Frame: From enrollment to the end of treatment at 2 years.
Evaluate the clinical response rate, endoscopic response rate, and hormone free response rate at 14 weeks, 30 weeks, 52 weeks, and 2 years after first-line biologic therapy based on the Mayo scoring system and endoscopic examination results
From enrollment to the end of treatment at 2 years.
Factors affecting the efficacy of two biological agents in the treatment process
Time Frame: From enrollment to the end of treatment at 2 years.
After balancing confounding factors through PSM, IPTW, and other methods, the factors affecting the efficacy of biologics were analyzed through survival analysis curves
From enrollment to the end of treatment at 2 years.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Xijing Hospital of Digestive Diseases

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Min Chen, Xijing Hospital of Digestive Diseases

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 30, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 20, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 20, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 29, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 29, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 8, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 3, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 1, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • KY20232425-F-1

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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