Addition of Azathioprine in IBD Patients With Immunogenic Failure

NCT ID: NCT03580876

Last Updated: 2018-07-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE4

Total Enrollment

90 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-07-23

Study Completion Date

2020-06-10

Brief Summary

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Loss of response under anti-TNF is frequent. 20% of patients with clinical relapse present an immune mediated pharmacokinetic failure. In the last AGA recommendations, switch to another anti-TNF drug is suggested with no indication of immunosuppressive agent. In a recent study, 70% of patients with an immunogenic failure to a first anti-TNF agent developed a new immunogenic failure to the second anti-TNF drug using alone.

Detailed Description

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The aim of the study in these patients with an immune mediated pharmacokinetic failure was to compare two strategies:

Switch to a second anti-TNF alone or switch to a second anti-TNF with addition of azathioprine

Comparing rates of clinical failure, rates of immunogenic failure and finally adverse events during a follow-up of 24 months

Conditions

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Clinical Failure After Switch

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

two strategies
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

open label study

Study Groups

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switch to anti-TNF alone

Switch to the second anti-TNF drug alone (infliximab or adalimumab)

Loss of response under Infliximab: 10 mg/kg IV every 8 weeks Randomization to: Adalimumab: induction 160/80 mg SC and Maintenance 40 mg EOW SC OR Loss of response under Adalimumab: 40mg EW SC Randomization to: Infliximab: 5mg/kg IV at W0, W2, W6 and every 8 weeks.

Group Type OTHER

Switch to a second anti-TNF drug alone

Intervention Type DRUG

Switch to a second anti-TNF drug alone without addition of azathioprine

switch to anti-TNF with addition of azathioprine

Switch to anti-TNF (infliximab or adalimumab) with addition of azathioprine

Loss of response under Infliximab: 10 mg/kg IV every 8 weeks Randomization to: Adalimumab: induction 160/80 mg SC and Maintenance 40 mg EOW SC with azathioprine 2.5 mg/kg/day OR

Loss of response under Adalimumab: 40mg EW SC Randomization to:

Infliximab: 5mg/kg IV at W0, W2, W6 and every 8 weeks with azathioprine 2.5 mg/kg/day.

Group Type OTHER

addition of azathioprine

Intervention Type DRUG

impact of addition of azathioprine after a switch of a second anti-TNF agent

Interventions

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addition of azathioprine

impact of addition of azathioprine after a switch of a second anti-TNF agent

Intervention Type DRUG

Switch to a second anti-TNF drug alone

Switch to a second anti-TNF drug alone without addition of azathioprine

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* IBD Patients in clinical failure under anti-TNF (Infliximab (IFX) or Adalimumab (ADA) in monotherapy at the optimal dose) ADA: 40mg/7 days, IFX: 10mg/kg/8 weeks Active disease CD: HBI \> 5 with Calprotectin \> 250 µg/g stool UC: Total Mayo Score \> 4 with an endoscopic subscore \> 1 Anti-TNF monotherapy for at least 4 months and optimization for at least two months
* Patients with an immune mediated PK failure Undetectable rates of anti-TNF and high Ab against anti-TNFs \> 20ng/mL for ATI and AAA (Elisa Theradiag) on two consecutive samples
* Patients who have agreed to and signed the consent form

Exclusion Criteria

* Unclassified colitis
* Pregnant woman
* Crohn's disease CD with a exclusive anoperineal phenotype
* Contraindication or intolerance to azathioprine
* Primary non-responder patients To the first anti-TNF or After the switch to a - second anti-TNF
* Ostomy
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Védrines, Philippe, M.D.

INDIV

Sponsor Role lead

Responsible Party

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Philippe VEDRINES

head of gastroenterology unit and principal investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Clinic of Montbrison

Montbrison, Pays de la Loire Region, France

Site Status RECRUITING

Countries

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France

Central Contacts

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philippe vedrines, MD,PhD

Role: CONTACT

0608632997

xavier roblin, MD,PhD

Role: CONTACT

Facility Contacts

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philippe vedrines, MD,PhD

Role: primary

References

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Hasskamp J, Meinhardt C, Patton PH, Timmer A. Azathioprine and 6-mercaptopurine for maintenance of remission in ulcerative colitis. Cochrane Database Syst Rev. 2025 Feb 27;2(2):CD000478. doi: 10.1002/14651858.CD000478.pub5.

Reference Type DERIVED
PMID: 40013523 (View on PubMed)

Other Identifiers

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COMBOSWITCH

Identifier Type: -

Identifier Source: org_study_id

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