Combined Advanced Targeted Therapy for Inflammatory Bowel Disease

June 16, 2026 updated by: Yongquan Shi, Xijing Hospital of Digestive Diseases

Efficacy and Safety of Combined Advanced Targeted Therapy for Inflammatory Bowel Disease: A Prospective, Multicenter, Real-World Study

The aim of this retrospective and prospective observational study is to investigate and compare the real-world effectiveness and safety of different dual-target combination therapies in patients with inflammatory bowel disease (IBD).

The key questions to be addressed are:

In patients with refractory IBD who receive either two biologic agents or one biologic agent plus one small molecule drug, what is the real-world effectiveness and safety of different combination regimens?

The researchers will conduct a retrospective analysis of medical records and electronic health data from patients diagnosed with IBD, and will enroll and document patients receiving combination advanced targeted therapy (CATT) for long-term follow-up. The treatments received by these patients are part of routine first-line clinical care or routine rescue clinical care. All treatment decisions were made by treating clinicians according to the standard of care; the investigator did not assign or modify any therapeutic interventions. Data will be collected during a defined follow-up period to compare the real-world effectiveness and safety profiles of different treatment exposure strategies.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This is a retrospective and prospective observational cohort study. All described interventions are part of routine clinical care for patients with inflammatory bowel disease (IBD). Treatment decisions were made by treating clinicians according to the standard of care; the investigator did not prospectively assign, modify, or control any therapeutic interventions. Participants did not receive any intervention specifically for the purpose of this study. The study only involves retrospective analysis of existing medical records to compare real-world outcomes between different treatment exposure patterns.

Study Type

Observational

Enrollment (Actual)

117

Contacts and Locations

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

Study Locations

  • China
    • Shaanxi
      • Xi'an, Shaanxi, China, 710005
        • Xijing Hosipital of Digestive Disease

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

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

This is a multicenter, retrospective and prospective cohort study conducted at 4 tertiary inflammatory bowel disease (IBD) centers in China from April 2023 to April 2026. A total of 117 patients with IBD were enrolled. All patients received Combined Advanced Targeted Therapy (either two biologic agents, or one biologic agent together with one small molecule agent).

Description

Inclusion Criteria:

  • 1.Patients diagnosed with IBD; 2.Patients treated with upadacitinib at 4 tertiary inflammatory bowel disease (IBD) centers in China from June 2023 to December 2026； 3.Patients with complete and available clinical, endoscopic, and follow-up data； 4.Patients for whom the study was approved by the Institutional Research 5.Ethics Committee and conducted in accordance with the Declaration of Helsinki.

Exclusion Criteria:

  • 1.Patients with hemodynamic instability; 2.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; 3.Patients allergic to biologic agents or small molecule agents; 4.Patients whose primary disease was gastrointestinal malignancy; 5.Patients currently suffering from serious or uncontrolled underlying diseases of the blood, digestive tract, metabolism, endocrine, lung, heart, nervous system, mental system, etc.; 6.Female patients during pregnancy and breastfeeding (including patients with reproductive needs)； 7.Patients with current infection with infectious diseases (hepatitis B, hepatitis C, syphilis, AIDS, tuberculosis, etc.); 8.Patients with missing key data for outcome assessment; 9.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
Intervention / Treatment
IBD Patients with Combined Advanced Targeted Therapy
Group/Cohort Description: This retrospective and prospective observational cohort includes patients with inflammatory bowel disease (IBD) who received combination therapy (two biologic agents or one biologic agent and one small molecule agent) in routine clinical practice. All treatment decisions were made by treating clinicians according to the standard of care; the investigator did not assign or modify any therapeutic interventions, and only retrospectively collected and analyzed clinical outcomes from medical records.
Drug: Combination therapy
Combination therapy in this study is defined as the concurrent use of either two biologic agents, or one biologic agent together with one small molecule agent.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
clinical response/remission rate at week 12.
Time Frame: week 12
Clinical remission is defined as a Mayo score ≤ 2 with no subscore > 1 and a rectal bleeding subscore of 0;
week 12
Colectomy-free rate within 90 days
Time Frame: 90 days
The proportion of IBD patients who did not undergo colectomy within 90 days after the Combined Advanced Targeted Therapy
90 days

Secondary Outcome Measures

Outcome Measure
Time Frame
Adverse events (AEs) rate
Time Frame: 90 days
90 days
Endoscopic response/remission rate at week 12
Time Frame: week 12
week 12

Collaborators and Investigators

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

Sponsor

Xijing Hospital of Digestive Diseases

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

April 20, 2023

Primary Completion (Actual)

May 10, 2026

Study Completion (Actual)

June 10, 2026

Study Registration Dates

First Submitted

June 16, 2026

First Submitted That Met QC Criteria

June 16, 2026

First Posted (Actual)

June 22, 2026

Study Record Updates

Last Update Posted (Actual)

June 22, 2026

Last Update Submitted That Met QC Criteria

June 16, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • KY20232425-F-1-2

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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