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Study on the Correlation and Consistency of Measuring Biologic Drug Plasma Concentrations Based on Different Detection Methods

Study on the Correlation and Consistency of Measuring Biologic Drug Plasma Concentrations Based on Different Detection Methods

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06849739
Enrollment
60
Registered
2025-02-27
Start date
2025-03-02
Completion date
2025-12-31
Last updated
2025-02-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Inflammatory Bowel Diseases

Brief summary

In recent years, biologics (such as infliximab, adalimumab, vedolizumab, and ustekinumab) have shown great potential in the treatment of inflammatory bowel disease (IBD), transforming the traditional treatment model for IBD. Despite achieving good efficacy, some patients do not respond to biologics, which may be related to low drug concentrations in the blood. Guidelines recommend therapeutic drug monitoring (TDM) during the treatment of IBD. Currently, many commercial testing methods are available to detect the trough levels of biologics; however, data on the diagnostic accuracy and practicality of these methods remain limited. This study compares the detection of blood samples from IBD patients after administration using ELISA, PICA, and CLIA methods, aiming to provide more accurate guidance and evidence for TDM in Chinese IBD patients undergoing biologic therapy.

Interventions

This study compares the detection of blood samples from IBD patients after biologic therapy(eg:IFX,ADA,UST,VDZ) using different methods

Sponsors

Nanfang Hospital, Southern Medical University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum

Inclusion criteria

* Patients aged 18 years or older; diagnosed with inflammatory bowel disease according to the 2019 European ECCO-ESGAR guidelines; who have not previously received any biologic therapy or, based on the treating physician's judgment, require treatment with infliximab (IFX), adalimumab (ADA), vedolizumab (VDZ), or ustekinumab (UST) .

Exclusion criteria

* Patients who refuse treatment with infliximab, adalimumab, vedolizumab, or ustekinumab for various reasons, or those with contraindications; patients currently using antibiotics or who have been in contact with probiotics/antibiotics in the past month; those with concomitant active autoimmune diseases, active tumors, etc.; those with severe oral diseases; patients experiencing other diseases unrelated to inflammatory bowel disease during treatment but may affect the efficacy of inflammatory bowel disease treatment; pregnant or lactating women; those deemed unsuitable for participation in this study by the investigator's judgment.

Design outcomes

Primary

MeasureTime frameDescription
plasma concentrationDuring hospitalization for biologic injections,an average of 1 weekplasma concentration refers to the total concentration of a biologic drug(such as infliximab, adalimumab, vedolizumab, and ustekinumab) in the plasma after absorption.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026