Ileal Crohn's Disease and Post-operative Outcome: Prospective Cohort Study of the REMIND Group

Crohn Disease Clinical Trial

— POP-REMIND  

Official title:

Ileal Crohn's Disease and Post-operative Outcome: Prospective Cohort Study of the REMIND Group

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03458195
• Other study ID #: POP STUDY - REMIND
• Status: Recruiting
• Phase: N/A
• Start date: December 10, 2009
• Est. completion date: December 2026

Study information

• Verified date: April 2024
• Source: Saint-Louis Hospital, Paris, France
• Contact: Matthieu ALLEZ, Pr
• Phone: +33(1) 42 49 95 75
• Email: Matthieu.allez[@]aphp.fr
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Crohn's disease (CD), a chronic inflammatory process in intestinal segments leads to tissue damage. More than two thirds of CD patients need intestinal resection. Symptomatic clinical recurrence occurs in 60% by 10 years. The principal factors affecting postoperative recurrence are active smoking, penetrating disease, perianal lesions history, prior intestinal resection, small bowel resection extent, and prophylaxis treatment absence. Ileocolonoscopy within one year of surgery can predict clinical recurrence risk. Different therapies are proposed after surgery, to prevent post-operative recurrence : Thiopurines, 6-mercaptopurine (positive for clinical and endoscopic postoperative recurrence prevention), Anti-tumour necrosis factor therapy (anti-TNF), the most effective therapy. Intestinal microbiota acts as a central factor in the CD pathogenesis, and fecal stream role is clearly shown. Various changes in luminal flora with a possible link to local inflammation was also demonstrated. Bacteria associated with postoperative recurrence could be more pathogenic as adherent invasive E coli (AIEC), which could be a pathogen in CD through several mechanisms including increased mucosal colonization, adherence, replication and induction of TNF secretion. Alternatively, postoperative CD recurrence could be linked to a protective commensal species lack, such as Faecalibacterium prausnitzii. Microscopic inflammation occurs as early as 8 days after anastomosis in the neoterminal ileum mucosa. IL6, IL10 and TGFb levels, measured in neoterminal ileum early after surgery are associated with different rates of postoperative recurrence. It suggests cytokines implication in postoperative recurrence. T cells are major players in the intestinal immune response. The presence at time of surgery and persistence of disease inducing T cell clonal expansions could play an important role in post-operative recurrence. The main objective is to define a classification of ileal Crohn's Disease based on data integration on a large cohort of patients.

Description:

Crohn's Disease is a major health issue with a complex etiology and despite available medical treatment, patients endure poor quality of life. The disease 's characterization on a molecular level will allow for a better management of patients treatment. To do so, the strategy is to integrate precise prospective clinical records with extensive biological data in a large cohort of patients. All the clinical centers, participating to the study, include patients, with a tight collaboration between Gastroenterology and Surgery departments. Demographics and clinical parameters are collected in an eCRF. Inclusion of patients is performed, before a scheduled ileocecal resection or ileal resection, and after eligibility criteria checking, and consent form signature. During surgery, several samples are collected : blood samples, mucosal biopsies, and surgical specimens. As usual practice, post-operative treatment will be prescribed at investigator's discretion, with help of a pre-established algorithm. Then, an endoscopic exam is scheduled, at least 6 months after surgery, or at least 6 months after intestine continuity restoration, in case of temporary stoma. Several samples are also collected during this exam (blood, ileal and colon biopsies). At the same time as these 2 visits, clinical data regarding medical history, CD history, surgical history, treatments history, post-operative treatment if prescribed, treatments history between surgery and colonoscopy 6 months later, endoscopic score. Clinical data are also collected 18 months after surgery during a scheduled visit organized as usual practice, for long-term study : Clinical relapse, surgical recurrence, change in the therapy, hospitalizations and complications A patient has achieved the study after the endoscopic exam. Several studies will be performed along the cohort setting-up: - Transcriptomic analyses of mucosal tissues: - Identification of a molecular signature predictive of post-operative recurrence - Molecular classification of ileal Crohn's Disease - Study of the mucosa-associated microbiota - Study of association of AIEC - Study of anti-TNF efficacy in post-operative recurrence prevention - Study of new biologics in the treatment of post-operative recurrence All the biologic samples are stored on sites at -80°C, or at room temperature depending on the samples : Samples collected in Formol tubes, are sent immediatly, at room temperature, to the central pathology department in Beaujon Hospital, Paris. All the other samples, stored at -80°C, are sent to a central department, the Bio-Bank of Pasteur Hospital, Nice (every 3 months). Samples analyses are performed by dedicated research centers: DNA, and RNA extraction for transcriptome analysis, Micobiota analysis, Lipids analysis, AIEC analysis : Histological analyzes: Analyzis of the structure and inflammatory status of intestinal tissue of patients of the cohort, particularly at the ileal limit of the surgical specimens. Molecular Biology: Whole genome expression analyses are performed using microarray and followed by Gene Ontology and clustering analyses. Microbiology: Adherent Invasive E.Coli (AIEC): The search for AIEC bacteria is carried out by culturing and investigating the characteristics of adhesion, invasion in Int-407 cells, and survival within THP-1 macrophages. Microbiota: Bacterial composition of the ileal mucosa associated microbiota is analyzed at time of surgery using 16S (MiSeq, Illumina) sequencing. The obtained sequences are analyzed using the Qiime pipeline to assess composition, alpha and beta diversity. Immunology: Phenotype of mucosal and peripheral immune cells: Immune cells are extracted from blood and fresh mucosal tissues. The phenotype of these cells is analyzed by cytometry. T cell repertoire: T cell receptor analysis on DNA extracted from biopsies is performed by next generation sequencing (Adaptive Biotechnology Inc., Seattle, Washington, USA). It is hypothesized that the persistence of these clonal expansions could be linked to the presence of specific microbial antigens. Data Integration: The aim is to predict post-operative recurrence at M6. Integration of all datasets will explore the ability to predict post-operative recurrence. This will also allow to establish a molecular classification of CD, similar to what is already available in the oncology field. It will also be tried to find regulatory genes of the intestinal mucosa ("hubs"), using causal models (Bayesian networks) and co-expression networks (WCGNA). These findings could help drive potential innovative therapy for the treatment of CD. The comparative analysis of the mucosa-associated transcriptome and microbiome will be performed. This could allow to elucidate the relations between bacteria and the intestinal mucosa, and to uncover pathways implicated in the bacteria-mucosa dialog. The correlations between certain groups of bacteria and the activation of a number of genes will be looked at. And genes known to play a role in the interaction between the microbiome and the mucosa will be specifically studied (MUC, DEF, REG, NOD2, …). Lastly, once the patient genotypes will be available, an analysis of the genome together with the transcriptome and the relationship between genotype, transcriptome, and microbiome will be performed. This analysis should help to robustly identify major pathways involved in intestinal inflammation, study the role played by genetics, and the impact on the gut microbiome. And finally to correlate these results with carefully curated clinical data: relapse/remission, post-operative recurrence, efficacy of post-operative therapies (anti TNF agents, ustekinumab).

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 575
• Est. completion date: December 2026
• Est. primary completion date: December 2025
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 100 Years

Eligibility

Inclusion Criteria:

• Informed consent obtained before any study-related activities
• A diagnosis of CD, based on clinical, radiologic, endoscopic, or histological evidence.
• Men and women =18 years of age
• Required surgical intervention consisting in an ileocecal resection

Exclusion Criteria:

• Previous history of dysplasia or cancer in the ileum or colon
• Unwillingness or inability to follow the procedures outlined in the protocol
• Pregnant women

Related Conditions & MeSH terms

• Crohn Disease

Intervention

Other:
• bio-banking collection
blood samples, biopsies, and surgical specimen collected in addition to usual practice

Locations

Country	Name	City	State
Belgium	SART Tilman Hospital	Liège
France	Amiens Hospital	Amiens
France	Haut-levêque Hospital	Bordeaux
France	Clermont-Ferrand Hospital	Clermont-Ferrand
France	Beaujon Hospital	Clichy
France	Henri Mondor Hospital	Créteil
France	Kremlin-Bicêtre Hospital	Le Kremlin-Bicêtre
France	Lille Hospital	Lille
France	Hôpital Nord, CHU Marseille	Marseille
France	Montpellier Hospital	Montpellier
France	Brabois Hospital	Nancy
France	Nantes Hospital	Nantes
France	Archet 2 Hospital	Nice
France	Saint Antoine Hospital	Paris
France	Saint Louis Hospital	Paris
France	South Lyon Hospital	Pierre-Bénite
France	Strasbourg Hospital	Strasbourg

Sponsors (1)

Lead Sponsor	Collaborator
Saint-Louis Hospital, Paris, France

Countries where clinical trial is conducted

Belgium,  France, 

References & Publications (15)

Allez M, Auzolle C, Le Bourhis L, Seksik P. Editorial: predicting recurrence of Crohn's disease after surgical resection-Close to a crystal ball. Authors' reply. Aliment Pharmacol Ther. 2018 Nov;48(10):1157-1158. doi: 10.1111/apt.14998. No abstract availa — View Citation

Allez M, Auzolle C, Ngollo M, Bottois H, Chardiny V, Corraliza AM, Salas A, Perez K, Stefanescu C, Nancey S, Buisson A, Pariente B, Fumery M, Sokol H, Treton X, Barnich N, Seksik P, Le Bourhis L; REMIND Study Group. T cell clonal expansions in ileal Crohn — View Citation

Auzolle C, Nancey S, Tran-Minh ML, Buisson A, Pariente B, Stefanescu C, Fumery M, Marteau P, Treton X, Hammoudi N; REMIND Study Group Investigators; Jouven X, Seksik P, Allez M. Male gender, active smoking and previous intestinal resection are risk factor — View Citation

Buisson A, Sokol H, Hammoudi N, Nancey S, Treton X, Nachury M, Fumery M, Hebuterne X, Rodrigues M, Hugot JP, Boschetti G, Stefanescu C, Wils P, Seksik P, Le Bourhis L, Bezault M, Sauvanet P, Pereira B, Allez M, Barnich N; Remind study group. Role of adher — View Citation

Chervy M, Sivignon A, Dambrine F, Buisson A, Sauvanet P, Godfraind C, Allez M, Le Bourhis L, The Remind Group, Barnich N, Denizot J. Epigenetic master regulators HDAC1 and HDAC5 control pathobiont Enterobacteria colonization in ileal mucosa of Crohn's dis — View Citation

Fumery M, Seksik P, Auzolle C, Munoz-Bongrand N, Gornet JM, Boschetti G, Cotte E, Buisson A, Dubois A, Pariente B, Zerbib P, Chafai N, Stefanescu C, Panis Y, Marteau P, Pautrat K, Sabbagh C, Filippi J, Chevrier M, Houze P, Jouven X, Treton X, Allez M; REM — View Citation

Hammoudi N, Auzolle C, Tran Minh ML, Boschetti G, Bezault M, Buisson A, Pariente B, Treton X, Seksik P, Fumery M, Le Bourhis L, Nancey S, Allez M. Postoperative Endoscopic Recurrence on the Neoterminal Ileum But Not on the Anastomosis Is Mainly Driving Lo — View Citation

Hammoudi N, Cazals-Hatem D, Auzolle C, Gardair C, Ngollo M, Bottois H, Nancey S, Pariente B, Buisson A, Treton X, Fumery M, Bezault M, Seksik P, Le Bourhis L; REMIND Study Group Investigators; Flejou JF, Allez M. Association Between Microscopic Lesions at — View Citation

Hammoudi N, Hamoudi S, Bonnereau J, Bottois H, Perez K, Bezault M, Hassid D, Chardiny V, Grand C, Gergaud B, Bonnet J, Chedouba L, Tran Minh ML, Gornet JM, Baudry C, Corte H, Maggiori L, Toubert A, McBride J, Brochier C, Neighbors M, Le Bourhis L, Allez M — View Citation

Julien C, Anakok E, Treton X, Nachury M, Nancey S, Buisson A, Fumery M, Filippi J, Maggiori L, Panis Y, Zerbib P, Francois Y, Dubois A, Sabbagh C, Rahili A, Seksik P, Allez M, Lefevre JH; REMIND Study Group Investigators; Le Corff S, Bonnet A, Beyer-Berjo — View Citation

Khaloian S, Rath E, Hammoudi N, Gleisinger E, Blutke A, Giesbertz P, Berger E, Metwaly A, Waldschmitt N, Allez M, Haller D. Mitochondrial impairment drives intestinal stem cell transition into dysfunctional Paneth cells predicting Crohn's disease recurren — View Citation

Le Baut G, O'Brien C, Pavli P, Roy M, Seksik P, Treton X, Nancey S, Barnich N, Bezault M, Auzolle C, Cazals-Hatem D, Viala J, Allez M; REMIND GROUP; Hugot JP, Dumay A. Prevalence of Yersinia Species in the Ileum of Crohn's Disease Patients and Controls. F — View Citation

Ngollo M, Perez K, Hammoudi N, Gorelik Y, Delord M, Auzolle C, Bottois H, Cazals-Hatem D, Bezault M, Nancey S, Nachury M, Treton X, Fumery M, Buisson A, Barnich N, Seksik P; REMIND Study Group Investigators; Shen-Orr SS, Le Bourhis L, Allez M. Identificat — View Citation

Perez K, Ngollo M, Rabinowitz K, Hammoudi N, Seksik P, Xavier RJ, Daly MJ, Dotan I, Le Bourhis L, Allez M. Meta-Analysis of IBD Gut Samples Gene Expression Identifies Specific Markers of Ileal and Colonic Diseases. Inflamm Bowel Dis. 2022 May 4;28(5):775- — View Citation

Sokol H, Brot L, Stefanescu C, Auzolle C, Barnich N, Buisson A, Fumery M, Pariente B, Le Bourhis L, Treton X, Nancey S, Allez M, Seksik P; REMIND Study Group Investigators. Prominence of ileal mucosa-associated microbiota to predict postoperative endoscopic recurrence in Crohn's disease. Gut. 2020 Mar;69(3):462-472. doi: 10.1136/gutjnl-2019-318719. Epub 2019 May 29. — View Citation

* Note: There are 15 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Ileal Crohn's disease classification	Ileal Crohn's disease classification will be performed using data integration (taking into account clinical data, immunological, genetic, microbiota, transcriptome data). A molecular classification will be possible due to this data integration analysis	surgery time, Time 0
Primary	Postoperative recurrence study	Rates of endoscopic recurrence as defined by a Rutgeerts score = 1 in patients will be evaluated at the endoscopic exam	6 months after surgery
Primary	Study of Treatments efficacy to prevent recurrence	During a clinical visit, scheduled as usual practice 6 months after surgery, clinical data will be collected : treatment modification or optimization, recurrence occurrence. If treament modification or optimization is needed (clinical symptoms or endoscopic recurrence), or complication occurs (abcess, occlusive syndrom, new surgery), patient will be considered as suffering a long-term relapse	6 months after surgery time
Primary	Identification of biomarkers which could predict postoperative recurrence and response to treatments	Identification of biomarkers taking into account clinical data, immunological, genetic, microbiota, transcriptome data	surgery time, Time 0