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Dose reduction of infliximab in Crohn’s disease, based on serum infliximab concentration

Efficacy and safety of trough level-based dose reduction during infliximab maintenance treatment in Crohn’s disease - REDIX

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2013-001029-17-NL
Enrollment
Unknown
Registered
2013-05-17
Start date
2014-04-01
Completion date
Unknown
Last updated
2014-04-14

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

Conditions

Crohn's disease MedDRA version: 16.0 Level: PT Classification code 10011401 Term: Crohn's disease System Organ Class: 10017947 - Gastrointestinal disorders

Interventions

Trade Name: Remicade Product Name: Infliximab Pharmaceutical Form: Powder for concentrate for solution for infusion

Sponsors

Academic Medical Center
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: -Diagnosis of CD based on endoscopy and pathology -18 years or older -At least 6 months in remission, defined as a Harvey Bradshaw Index (HBI) score of =4 -IFX therapy > 6 months at 5 mg/kg every 8 weeks with or without concomitant immunosuppression (stable for > 3 months). -IFX TL > 7 ug/ml. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 224 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: -Non-adherence to the 8 weekly infusions schedule in the past -Participation in another therapeutic trial -Pregnancy -Prior dose adjustments or interval shortening of IFX

Design outcomes

Primary

MeasureTime frame
Main Objective: To evaluate the efficacy and safety of IFX dose reduction guided by serial TL measurements, compared with usual care (no dose adjustments). ;Secondary Objective: Compare the time to relapse To identify predictors allowing selection of patients in whom dose reduction is easier and more successful using a logistic regression analysis Compare laboratory tests (CRP and fecal calprotectin) at all study visits Compare adverse events To investigate whether gradual dose reduction results in a significant reduction of the per patient annual cost of IFX maintenance treatment Pharmaco-economic evaluation;Primary end point(s): Proportion of patients with sustained clinical remission;Timepoint(s) of evaluation of this end point: 24 months after randomization

Secondary

MeasureTime frame
Secondary end point(s): Proportion of patients with clinical and biochemical relapse; Time to relapse; Presence of predictive factors for successful dose reduction with specific focus on smoking status, body mass index and extent of disease; Laboratory tests (CRP and fecal calprotectin) at all study visits; Adverse events; Yearly cost of IFX treatment in the intervention versus the control group; Pharmaco-economic evaluation.;Timepoint(s) of evaluation of this end point: 24 months after randomization

Countries

Netherlands

Contacts

Public ContactMark Löwenberg

Academic Medical Center

m.lowenberg@amc.uva.nl+31205667621

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026