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Lymphocyte Immunophenotyping in Common Variable Immunodeficiency
The purpose of this study is to discover if differences in the surface markers of B-cells (antibody producing cells of the immune system) in Common Variable Immune Deficiency (CVID) are related to CVID or its complications/treatment (e.g. bronchiectasis, granulomatous disease, immunoglobulin treatment). The study hypothesis is that the altered B-cell surface markers are related to CVID, and not to the complications or treatment of CVID.
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Management of Moderate POstoperative Recurrence in Crohn's Disease: a randoMizEd contROLled Trial of Therapeutic Escalation, the POMEROL Trial. (POMEROL)
Study type : A 30 months, multicentre, open-label strategic randomized controlled trial Population : Chron's Disease (CD) patients with an i2 endoscopic postoperative recurrence in the year following ileocolonic resection (6-12months after ileocolonic resection). Treatments : Stratification at inclusion according to prophylactic therapy. Patients randomized in 2 arms: - Status quo arm: if the patient received no prophylactic therapy, no treatment will be started; if the patient received a prophylactic therapy, the same will be continued at the same dose. - Therapy escalation arm:...
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Mesenchymal Stem Cells for the Treatment of Perianal Fistulizing Crohn's Disease
The purpose of this study is to determine the safety and efficacy of using adult allogeneic bone marrow derived mesenchymal stem cells (MSCs), to treat people for medically refractory perianal fistulizing Crohn's disease.
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Mesenchymal Stem Cells for the Treatment of Rectovaginal Fistulas in Participants With Crohn's Disease
Approximately 10% of all female Crohn's patients have a rectovaginal fistula. Rectovaginal fistulas cause air, stool, and/or drainage per vagina and may be associated with pain, recurrent urinary tract infections and diminished quality of life. Conventional therapy includes immunosuppressive medications used to treat Crohn's disease and various surgical interventions. However, all have limited ability to heal these fistulas. The purpose of this study is to determine the safety and efficacy of using allogeneic bone marrow derived mesenchymal stem cells (MSCs) to treat people with rectovaginal fistulas in the setting of Crohn's...
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Mesenteric Bacterial Translocation in Evolved Crohn's Disease
Mesenteric fat can be invaded by gut bacteria through a process called bacterial translocation, which is the invasion of viable bacteria from the gastrointestinal tract to extraintestinal sites (mesenteric lymph nodes, liver, spleen, kidney, bloodstream, etc.). In Crohn's disease (CD), bacterial translocation could increase the disproportionate inflammatory response already present and contribute to disease progression by stimulating the production of pro-inflammatory cytokines and immune-cell infiltration in the mesentery. Several mechanisms may promote bacterial translocation, such as bacterial overgrowth, disruption of the...
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MeSenteric SpAring Versus High Ligation Ileocolic Resection for the Prevention of REcurrent Crohn's DiseaSe (SPARES)
Study description - Patients will be randomized according to post-operative recurrence risk to either a high ligation of ileocolic artery or mesenteric sparing ileocolic resection for terminal ileal Crohn's disease. The primary endpoint 6-month endoscopic recurrence. Endpoints - Primary endpoint; 6 months Secondary endpoints at 1 and 5 years post ileocecal resection Study population - Adult Crohn's disease patients with medically refractory terminal ileal Crohn's disease undergoing a primary ileocecal resection. Study sites - Multicenter international study Description of study intervention - Randomized control trial...
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Microbiome Modification to Enhance Stelara Response in Crohn's Disease
This pilot study is being completed to determine whether a low-serine diet vs a high serine diet will reduce inflammation and symptoms in Crohn's disease (CD), as well as determine whether a low-serine diet (vs. a high serine diet) will improve responses in patients initiating therapy with Ustekinumab (Stelara), an FDA-approved biologic therapy for Crohn's disease.
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MILESTONE-CD -A Prospective Multiomic Inception Real -Life Study To Evaluate Predictors of Disease Outcomes & respoNse to Biologic Treatment in Crohn's Disease
Crohn's' disease (CD) is a lifelong-chronic inflammatory condition of the digestive tract. CD frequently manifests during the 2nd or 3rd decade; prolonged disease duration frequently results in major structural complications such as strictures and fistulae, leading to surgery for control of complications in at least 30% of the patients. The course of disease is extremely diverse, ranging from a very mild disease to a devastating and incapacitating course. The burden of inflammatory bowel disease is growing each disease, reaching 400 billion USD for lifetime in US. In Israel, there are currently over 50000 IBD patients, with one of...
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Modulating Early Life Microbiome Through Dietary Intervention in Crohn's Disease
The MELODY Trial: Modulating Early Life Microbiome through Dietary Intervention in Crohn's Disease, will test whether a non-invasive dietary intervention during pregnancy can improve the gut microbiota composition in both pregnant Crohn's disease patients and their babies during the sensitive time window of infant immune system development, and whether this can lead to decreased risk of maternal disease relapse postpartum and decreased functional gastrointestinal disorders and gut inflammation in their babies. Through this trial, the study team hopes to better understand the origin of the initial gut bacterial colonization in babies,...
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Mother-to-Infant Transfer of Bacteriome, Fungome, Virome, and Metabolome in Health and Crohn's Disease
Inflammatory bowel diseases (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), are caused by the loss of mucosal tolerance towards the commensal microbiota resulting in inflammatory responses. Both CD and UC are difficult to manage clinically, and their incidences are increasing worldwide especially in newly industrialized countries. The etiology of these disorders is multifactorial, influenced by the complex interactions of genes, the immune system, intestinal microbiota, and the external environment. Studies have shown that there is a higher disease transmission rate from mothers with IBD than from fathers. It is...
