NCT04646187

Brief Summary

BACKGROUND/RATIONALE: Treatment outcomes of patients with inflammatory bowel disease (IBD) have improved enormously during the past decade due to the use of anti-tumour necrosis factor (anti-TNF) therapy. As a result, 67 to 91% of paediatric patients and 66% of adult patients is still in sustained remission two years after the initiation of anti-TNF therapy. Prolonged use of anti-TNFs comes with disadvantages such as dose dependent susceptibility to infections and dermatological adverse effects. Preliminary, mostly uncontrolled studies suggest that dose reduction by dosing interval lengthening is a realistic option in a relevant proportion of patients with IBD, provided that intensive follow-up is applied. OBJECTIVE: To evaluate whether a faecal calprotectin (FC) guided strategy of anti-TNF dosing interval lengthening is non-inferior in maintaining remission in patients with IBD, compared with an unchanged dosing interval.

Trial Health

58
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
148

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Mar 2021

Longer than P75 for phase_4

Geographic Reach
3 countries

7 active sites

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 20, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 27, 2020

Completed
3 months until next milestone

Study Start

First participant enrolled

March 11, 2021

Completed
5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2026

Completed
Last Updated

January 6, 2025

Status Verified

January 1, 2025

Enrollment Period

5 years

First QC Date

November 20, 2020

Last Update Submit

January 3, 2025

Conditions

Keywords

InfliximabAdalimumabTumor Necrosis Factor-alphaInflammatory Bowel DiseasesCrohn DiseaseColitis, Ulcerative

Outcome Measures

Primary Outcomes (1)

  • cumulative incidence of out-of-range fecal calprotectin results at 48 weeks follow-up

    Out-of-range FC results are defined as fecal calprotectin above the target range (i.e. \>250 μg/g for CD patients; \>150 μg/g for UC patients) and at least 100 μg/g increase compared with the previous result, unless the previous result was already above the target range.

    48 weeks

Secondary Outcomes (5)

  • Time to get out-of-range fecal calprotectin results

    up to 48 weeks

  • Cumulative incidence of anti-TNF-associated respiratory infections and dermatological adverse effects at 48 weeks follow-up

    48 weeks

  • Evolution of FC and anti-TNF trough levels in the first 16 weeks after reverting to previous dosing interval

    Up to 48+16 weeks

  • Proportion of patients developing loss-of-response in the first 16 weeks after reverting to the previous dosing interval

    Up to 48+16 weeks

  • Identification of predictors of successful de-escalation.

    48 weeks

Other Outcomes (1)

  • Patients' attitudes towards deprescribing anti-TNF agents

    48 weeks

Study Arms (2)

Intervention group

EXPERIMENTAL

In patients treated with adalimumab, the dosing interval will be lengthened from 2 to 3 weeks. In patients treated with infliximab, the dosing interval will be lengthened from 8 to 12 weeks. Consists of two groups: Patients randomised to the intervention group and patients allocated to the intervention group based on preference.

Biological: InfliximabBiological: Adalimumab

Control group

NO INTERVENTION

Unchanged dosing interval. Consists of two groups: Patients randomised to the control group and patients allocated to the control group based on preference.

Interventions

InfliximabBIOLOGICAL

Dosing interval lengthening from 8 to 12 weeks

Also known as: Remicade, Flixabi, Inflectra, Remsima, Zessly
Intervention group
AdalimumabBIOLOGICAL

Dosing interval lengthening from 2 to 3 weeks

Also known as: Humira, AMGEVITA, Hulio, Hyrimoz, Idacio, Imraldi
Intervention group

Eligibility Criteria

Age12 Years - 25 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Aged 12-25 years
  • Diagnosed with luminal Crohn's disease or ulcerative colitis
  • Treated with either 8-weekly infliximab or 2-weekly adalimumab
  • Current anti-TNF agent as first ever anti-TNF agent or prior anti-TNF agent discontinued for reason other than primary non-response or secondary loss-of-response
  • No previous attempts to lengthen the dosing interval
  • Three consecutive faecal calprotectin (FC) results in the target range (i.e. \<250 μg/g for CD patients; \<150 μg/g for UC patients) in the previous 6 months or confirmed endoscopic remission within 2 months before study entry (i.e. simple endoscopic score for Crohn's disease (SES-CD) \<3 points for CD patients; ulcerative colitis endoscopic index of severity (UCEIS) ≤1 point for UC patients)
  • Absence of symptoms associated with active IBD (judged by the local IBD-team)
  • Written informed consent granted

You may not qualify if:

  • Perianal fistula
  • Presence of ileostomy or ileoanal pouch (as FC cut-off is not validated for small bowel faeces)
  • Any inflammatory comorbidity, such as rheumatoid arthritis
  • Current treatment with corticosteroids (prednisone or budesonide)
  • Current pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (7)

Universitair Ziekenhuis Gent

Ghent, 9000, Belgium

Location

Centre hospitalier universitaire de Liège

Liège, B-4000, Belgium

Location

Centre hospitalier régional de la Citadelle

Liège, Belgium

Location

Rijnstate Hospital

Arnhem, 6816 AD, Netherlands

Location

Catharina Hospital Eindhoven

Eindhoven, 5623 EJ, Netherlands

Location

University Medical Center Groningen

Groningen, 9700 RB, Netherlands

Location

Hospital Universitari de Bellvitge

L'Hospitalet de Llobregat, 08907, Spain

Location

Related Publications (1)

  • Bouhuys M, Lexmond WS, Dijkstra G, Lobaton T, Louis E, van Biervliet S, Groen H, Guardiola J, Rheenen PV. Efficacy of anti-TNF dosing interval lengthening in adolescents and young adults with inflammatory bowel disease in sustained remission (FREE-study): protocol for a partially randomised patient preference trial. BMJ Open. 2021 Nov 3;11(11):e054154. doi: 10.1136/bmjopen-2021-054154.

MeSH Terms

Conditions

Inflammatory Bowel DiseasesCrohn DiseaseColitis, Ulcerative

Interventions

InfliximabCT-P13Adalimumab

Condition Hierarchy (Ancestors)

GastroenteritisGastrointestinal DiseasesDigestive System DiseasesIntestinal DiseasesColitisColonic Diseases

Intervention Hierarchy (Ancestors)

Antibodies, MonoclonalAntibodiesImmunoglobulinsImmunoproteinsBlood ProteinsProteinsAmino Acids, Peptides, and ProteinsSerum GlobulinsGlobulinsAntibodies, Monoclonal, Humanized

Study Officials

  • Patrick F van Rheenen, MD PhD

    University Medical Center Groningen

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD PhD

Study Record Dates

First Submitted

November 20, 2020

First Posted

November 27, 2020

Study Start

March 11, 2021

Primary Completion

March 1, 2026

Study Completion

March 1, 2026

Last Updated

January 6, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations