Recruitment

Recruitment Status
Active, not recruiting
Estimated Enrollment
300

Inclusion Criteria

Diagnosis of Crohn's disease.
Patients able to understand the information provided to them and to give written informed consent for the study
Male or female, age > 18 years.
...
Diagnosis of Crohn's disease.
Patients able to understand the information provided to them and to give written informed consent for the study
Male or female, age > 18 years.
Patients in steroid free clinical remission for at least 6 months according to retrospective assessment of the patients' files.
Scheduled administration of infliximab 5 mg/Kg every 8 weeks over the last 4 months.
Combined therapy with scheduled infliximab and anti-metabolites for at least 8 months.
Currently treated with a combination therapy with infliximab and anti-metabolites for luminal Crohn's disease.
A contraceptive during the whole study for childbearing potential female patients.
Antimetabolites administered at a stable dosage for the last 3 months: at least 1 mg/Kg or 2 mg/Kg for mercaptopurine and azathioprine, respectively, or the highest tolerated dosage if intolerance to standard dose; at least 15 mg/week subcutaneously for methotrexate.
CDAI < 150 at baseline.

Exclusion Criteria

Inability to follow study procedures as judged by the investigator
Active perianal/abdominal fistulae at time of inclusion, defined by active drainage
Patients who have presented a severe acute or delayed reaction to infliximab.
...
Inability to follow study procedures as judged by the investigator
Active perianal/abdominal fistulae at time of inclusion, defined by active drainage
Patients who have presented a severe acute or delayed reaction to infliximab.
Pregnancy or planned pregnancy during the study
Steroid use ≤6 months prior to screening
Non-compliant subjects.
Participation in another therapeutic study
Patients with ostomy or ileoanal pouch
Currently receiving steroids, immunosuppressive agents (other than purine, methotrexate), biologic treatment (other than infliximab) or thalidomide
Perianal fistulae as the main indication for infliximab treatment

Summary

Conditions
Crohn's Disease
Type
Interventional
Phase
Phase 4
Design
  • Allocation: Randomized
  • Intervention Model: Parallel Assignment
  • Masking: None (Open Label)
  • Primary Purpose: Treatment

Participation Requirements

Age
Between 18 years and 65 years
Gender
Both males and females

Description

3. STUDY OBJECTIVES 3.1. Primary objective To assess the effect of two withdrawal strategies over two years in patients with stable remission for more than 6 months on combination therapy with infliximab and antimetabolites, and demonstrate that continued combination of infliximab and antimetabolite...

3. STUDY OBJECTIVES 3.1. Primary objective To assess the effect of two withdrawal strategies over two years in patients with stable remission for more than 6 months on combination therapy with infliximab and antimetabolites, and demonstrate that continued combination of infliximab and antimetabolites or continued monotherapy with infliximab are both superior to antimetabolites alone for maintaining sustained steroid-free clinical remission, while antimetabolites alone are non-inferior with regards to the mean time spent in remission 3.2. Secondary objectives To identify baseline predictive factors of relapse in the three study groups. To assess the ability of blood CRP and fecal calprotectin to predict short term relapse in the three groups. To assess time spent inclinical remission in the three groups. To assess the rate of treatment failure in the three study groups. To assess the time to treatment failure in the three study groups. To assess progression of bowel damage in the three groups. To assess the safety and efficacy of infliximab retreatment in the antimetabolites group. To assess safety in the three study groups. To assess the health related quality of life in the three study groups. To assess direct and indirect costs in the three study groups. To assess evolution of blood CRP and fecal calprotectin in the three study groups. To assess evolution of infliximab trough levels and ATI in the two infliximab scheduled maintenance groups. To assess genetic association with the various clinical and biological outcomes. To assess the impact of 6TGN levels on the various clinical and biological outcomes in the purine treated patients 4. STUDY POPULATION 4.1. Selection of study population Patients to be included are those who have been in steroid free remission for at least 6 months and with scheduled infliximab/antimetabolites combination therapy for at least 8 months, with a scheduled infliximab treatment administrated every 8 weeks for the last 4 months. 4.2. Source of recruitment Patients are recruited from participating GETAID IBD-centers in France, Belgium and SOIBD IBD-centers in Sweden, and selected centres in UK, Germany, Netherland and Australia 4.3. Inclusion criteria To be eligible all of the following criteria must be met: Diagnosis of Crohn's disease. Male or female, age > 18 years. Currently treated with a combination therapy with infliximab and anti-metabolites for luminal Crohn's disease. Combined therapy with scheduled infliximab and anti-metabolites for at least 8 months. Scheduled administration of infliximab 5 mg/Kg every 8 weeks over the last 4 months. Antimetabolites administered at a stable dosage for the last 3 months: at least 1 mg/Kg or 2 mg/Kg for mercaptopurine and azathioprine, respectively, or the highest tolerated dosage if intolerance to standard dose;(lower dose than standard dose is also allowed if 6 TGN > 235 pmol) ; at least 15 mg/week subcutaneously for methotrexate. Patients in steroid free clinical remission for at least 6 months according to retrospective assessment of the patients' files. CDAI < 150 at baseline. A contraceptive during the whole study Patients able to understand the information provided to them and to give written informed consent for the study 4.4. Exclusion criteria Patients who have presented a severe acute or delayed reaction to infliximab. Perianal fistulae as the main indication for infliximab treatment Active perianal/abdominal fistulae at time of inclusion, defined by active drainage Patients with ostomy or ileoanal pouch Pregnancy or planned pregnancy during the study Inability to follow study procedures as judged by the investigator Non-compliant subjects. Participation in another therapeutic study

Inclusion Criteria

Diagnosis of Crohn's disease.
Patients able to understand the information provided to them and to give written informed consent for the study
Male or female, age > 18 years.
...
Diagnosis of Crohn's disease.
Patients able to understand the information provided to them and to give written informed consent for the study
Male or female, age > 18 years.
Patients in steroid free clinical remission for at least 6 months according to retrospective assessment of the patients' files.
Scheduled administration of infliximab 5 mg/Kg every 8 weeks over the last 4 months.
Combined therapy with scheduled infliximab and anti-metabolites for at least 8 months.
Currently treated with a combination therapy with infliximab and anti-metabolites for luminal Crohn's disease.
A contraceptive during the whole study for childbearing potential female patients.
Antimetabolites administered at a stable dosage for the last 3 months: at least 1 mg/Kg or 2 mg/Kg for mercaptopurine and azathioprine, respectively, or the highest tolerated dosage if intolerance to standard dose; at least 15 mg/week subcutaneously for methotrexate.
CDAI < 150 at baseline.

Exclusion Criteria

Inability to follow study procedures as judged by the investigator
Active perianal/abdominal fistulae at time of inclusion, defined by active drainage
Patients who have presented a severe acute or delayed reaction to infliximab.
...
Inability to follow study procedures as judged by the investigator
Active perianal/abdominal fistulae at time of inclusion, defined by active drainage
Patients who have presented a severe acute or delayed reaction to infliximab.
Pregnancy or planned pregnancy during the study
Steroid use ≤6 months prior to screening
Non-compliant subjects.
Participation in another therapeutic study
Patients with ostomy or ileoanal pouch
Currently receiving steroids, immunosuppressive agents (other than purine, methotrexate), biologic treatment (other than infliximab) or thalidomide
Perianal fistulae as the main indication for infliximab treatment

Tracking Information

NCT #
NCT02177071
Collaborators
Saint-Louis Hospital, Paris, France
Investigators
  • Principal Investigator: Benjamin PARIENTE, doctor Groupe d'Etude Therapeutique des Affections Inflammatoires Digestives
  • David Laharie Groupe d'Etude Therapeutique des Affections Inflammatoires Digestives