Ongoing Clinical Trials

The body of research examining therapeutic diets is growing. Many trials are still in progress, including several large multi-center trials (DIETOMICS-CD [CDED] and MELODY [IBD-AID]). The collection of ongoing clinical trials listed below has been cultivated from ClinicalTrials.gov.
Date Title Trial type Completed Diets Sponsor Summary Excerpt Trial
Feb 2015 Decentralized Dietary UC Pilot Trial Interventional Transparency Life Sciences This study is designed to assess differences in remote and on-site patient study participation in the State of Massachusetts, as well as the significance of dietary interventions (Combined Anti-inflammatory Diet (CAID) and their impact on UC. The study will activate one site with a Principal Investigator who will utilize each subject's local care system (local Gastroenterologist) to collect study data, along with telemonitoring and video visits, to make key study assessments and decisions regarding subjects' progression in the study. Randomized, doiuble blind, n=51
Oct 2019 Diet Intervention Treatment for Active Ulcerative Colitis Interventional Mount Sinai Hospital, Canada We propose to use a sustainable non-elemental diet aimed at altering the microbiome in patients with mild to moderately active UC to alter their disease activity. Participants will be followed for 14 days on their traditional diet followed by an 8 week intervention with the specially designed and provided treatment diet. The treatment diet has been designed based on the literature with the goal of influencing the biodiversity and density of the microbiome. All food through the duration of the 8 week dietary intervention period of the study will be provided to the treatment arm study participants. Open label n=20
Nov 2019 Effects of an Intermittent Reduced Calorie Diet on Crohn's Disease Interventional Stanford University The purpose of this study is to see how an Intermittent Calorie Reduced Diet (IRCD) that mimics fasting effects inflammation in patients with mild to moderate Crohn's disease (CD). The diet may allow users to receive the benefits of fasting while also being able to enjoy food (the ingredients of which are GRAS (generally recognized as safe) by the Food and Drug Administration (FDA). Research on dietary interventions and CD are very limited. Diets that mimick fasting have been studied with support of the National Institute of Health and published in leading journals. This research investigates whether markers of inflammation decrease and/or quality of life increases after five-day periods of the IRCD, and may provide rationale for its use to treat CD. Three cycles of a 5-day Intermittent Reduced Calorie Diet over three months. Open label, n=75
Aug 2018 The Influence of a Fasting Mimicking Diet on Ulcerative Colitis Interventional Stanford University This research investigates whether markers of inflammation decrease and/or quality of life increases after three cycles of a five-day period of the fasting mimicking diet, and may provide rationale for its use to treat UC. Three cycles of a 5-day reduced calorie diet over 3 months. Primary outcome; changes in CRP, FCP, ESR. Secondary outcome: clinical remission per Mayo score, endoscopic outcomes. Other outcomes: measure of additional inflammatory markers, changes in gut metabolites and microbiome profiles. Open label, n=75
Jul 2019 Vegetarian Diet in Ulcerative Colitis (LOVUC) Interventional Edith Cowan University To determine whether a lacto-ovo vegetarian diet is effective in improving gastrointestinal symptoms, quality-of-life, intestinal inflammation and gut microbiota composition in mild-to-moderate UC compared to a standard omnivorous diet. This study will review whether a lacto-ovo vegetarian diet is an optimal dietary therapy to achieve a clinical response in mild to moderate UC as an adjunctive treatment to current medical therapies. The proposed RCT will be used to evaluate the efficacy of a lacto-ovo vegetarian diet together with its effect on the microbiota to create an enhanced understanding of the role diet plays in the management of UC. Using a socially acceptable diet it is anticipated that food-related quality-of-life measures will improve for participants. Dietary modification could be a more economical, safer and more effective means of reducing symptoms and flare-ups compared to pharmacological therapy. Phase 1: Open labelled, single centre trial (10 patients) Phase 2: Open labelled, single centre, single blinded, randomised controlled clinical trial (n=30).
Jan 2017 Chronic Inflammatory Disease, Lifestyle and Treatment Response (BELIEVE) Observational University of Southern Denmark Chronic inflammatory diseases (CID) - including inflammatory bowel diseases (Crohn's disease and ulcerative colitis), rheumatic conditions (rheumatoid arthritis, axial spondyloarthritis, psoriatic arthritis), inflammatory skin diseases (psoriasis, hidradenitis suppurativa) and non-infectious uveitis are treated with biologics targeting the pro-inflammatory molecule tumour necrosis factor-α (TNF), i.e. TNF inhibitors. Up to one third of the patients do, however, not respond to biologics and lifestyle is assumed to affect the treatment outcome. However, little is known on the effects of lifestyle as a prognostic factor (possibly enabling personalised medicine). The aims of this multidisciplinary collaboration are to identify lifestyle factors that support individualised forecasting of optimised treatment outcome on these costly drugs. This prospective cohort study will enrol CID patients assigned for biologic treatment. At baseline (Pre-treatment), patient characteristics are assessed using patient-reported outcome measures and clinical assessments on disease activity, quality of life, and lifestyle together with registry data on comorbidity and medication. Follow-up will be conducted at week 14-16 after treatment initiation (according to the current Danish standards). Evaluation of a successful treatment outcome response will - for each disease - be based on most frequently used primary endpoints; the major outcome of the analyses will be to detect differences in treatment outcome between patients with specific lifestyle characteristics. The overarching goal of this project is to improve the lives of patients suffering from CID, by providing evidence to support dietary recommendations likely to improve the clinical outcome. Prospective 16 weeks, observational prospective cohort n=320
Apr 2017 The IMAGINE-SPOR CIHR Chronic Disease Network (IMAGINE) Observational Hamilton Health Sciences Corporation The IMAGINE Cohort Study will identify and recruit a cohort of 8000 patients with IBS, IBD and healthy controls (2000 of each) who will be assessed in terms of their psychological status, dietary intake, gut microbiome, metabolomic and inflammatory markers and genotype, health-related quality of life, and health care resource use and associated costs. The cohort and healthy controls will be followed prospectively for up to 5 years after the completion of study enrollment. Observational cohort. n=8000.
Jan 2017 Diet as Essential Therapy (DIET) for Inflammatory Bowel Disease Interventional University of Washington The investigators propose to evaluate two such diets (certain diets have been recommended for patients with Crohn's disease) by randomizing 32 subjects with mildly to moderately active Crohn's disease to one of two diets that differ in the amount and type of carbohydrates and fiber. Subjects will remain on the diet for 8 weeks and will be evaluated for changes from baseline in inflammatory biomarkers, symptomatic disease activity, and the microbiome. Randomized, quadruple masked, n=34
Mar 2018 The ENIGMA Study: Eastern Inflammatory Bowel Disease Gut Microbiota Observational Chinese University of Hong Kong The ENIGMA project comprises three main enteric microbiome domains of central importance to Crohn's disease. Two specific organisms which may play a critical role in disease pathogenesis, including the candidate protective bacterium, and the novel pathogenic candidate, will be characterised and studied in detail. Microbial findings will be related to detailed assessment of environmental factors that permit microbial changes or expression. Observational cohort, n=1300
Jul 2016 Abnormal Fecal Microbiota in Healthy Subjects at High Risk for Crohn's Disease (MAGIC) Observational University Hospital, Lille Transversal multicentric French study on the microbiota in patients with Crohn's disease and their first degree healthy relatives The primary objective is the comparison of microbiota between patients with CD, healthy controls non genetically linked and first degree healthy relatives of patients with CD. The primary objective is the comparison of microbiota between patients with CD, healthy controls non genetically linked and first degree healthy relatives of patients with CD. The first endpoint is the Lachnospiraceae rates in each group. The secondary objectives are: 1. The search for an association between bacterial dysbiosis and different genetic backgrounds in patients with CD, their first degree healthy relatives and controls. 2. The quantification of potential invasive bacteria with invasive properties (E. coli including adherent-invasive E. coli, Shigella, Salmonella, Yersinia, Campylobacter), and fecal fungal flora (Candida albicans, in particular) and their association with genetic and serological profiles in patients with CD, their healthy relatives and control subjects. 3. A study of environmental risk factors using a questionnaire to be submitted to CD patients, their healthy relatives and control subjects. Observational n= 240.
Jan 2015 Bacteria & Inflammation in the Gut (BIG) Study (BIG) Observational EEN NHS Greater Glasgow and Clyde EEN has previously been shown to induce changes in major bacterial metabolites and dominant bacterial species which are more profound in children that clinically improve. This study aims to determine whether it is possible to maintain these bacterial changes with prolonged supplementary enteral nutrition (SEN) while returning to normal diet and if this can reduce risk of subsequent relapse for children with CD. Observational, case control, n=200
Mar 2018 Chronic Inflammatory Disease, Lifestyle and Risk of Disease (PROCID-DHC) Interventional University of Southern Denmark The study will use data from all of the 57,053 participants in the Danish cohort "Diet, Health and Cancer (DHC)" together with registry data. Blood samples, anthropometric measures and questionnaire data on diet and lifestyle were collected at the DHC study entry. The National Patient Registry (NPR) will be used to obtain to identify patients with CID during follow-up. Follow-up information on death and immigration will be collected in March 2018 from the Danish Civil Registration Register. The outcome of Chronic Inflammaroty Diseases (CID) is defined as at least one of the following CIDs: Crohn's disease, ulcerative colitis, psoriasis/psoriatic arthritis, rheumatoid arthritis/ankylosing arthritis, or multiple sclerosis, during the follow-up period from 1993 to March 2018. The primary hypothesis is that "the risk of CID will be significantly higher among those with a low fibre/high red and processed meat intake compared to those with a high fibre/low red and processed meat intake." Based on previous research on a shared etiology in CIDs a second hypothesis is that "the postulated causality between low fibre/high red and processed meat intake and risk of developing CID is applicable for each of the CID-diagnoses." Observational, prospective, 24 years, n=57,053

Nutritional Therapy for IBD

Improving the Care of Patients with Crohn’s Disease and Ulcerative Colitis through Diet