A Study to Evaluate the Effect of Fecal Transplant and Dietary Changes on Disease Activity in Patients With Ulcerative Colitis on Advanced Therapies
BOOST-UC
Efficacy of Microbiome Manipulation Strategies Fecal Microbial Transplant or Anti-inflammatory Diet or Both With Advanced Therapies BiOlOgics and Small Molecules to Break the Therapeutic Ceiling in Active Ulcerative Colitis BOOST-UC A Multicenter Double Blind Factorial Randomized Controlled Trial
2 other identifiers
interventional
220
1 country
6
Brief Summary
Ulcerative colitis (UC) is a chronic inflammatory disease of the colon characterized by superficial mucosal inflammation. Treatment aims to achieve and maintain remission, improve quality of life, and minimize complications. Advanced therapies, including biologics and small molecules, have significantly improved UC management by targeting specific inflammatory pathways. However, due to the multifactorial nature of UC-driven by genetic, environmental, and microbial factors-many patients do not achieve sustained remission, highlighting a therapeutic ceiling. Gut microbial dysbiosis and immune dysregulation are central to UC pathogenesis, with diet playing a critical role in influencing the gut microbiome. While biologics and small molecules have limitations, innovative approaches like combining fecal microbiota transplantation (FMT) and dietary interventions with advanced therapies show promise. FMT restores microbial balance, modulates immunity, and reduces inflammation, while dietary modifications, such as anti-inflammatory diets, enhance FMT efficacy by creating a favorable environment for donor microbiota engraftment. The present study is designed to evaluate the efficacy of three different microbiome manipulation strategies- FMT, AID and FMT + AID in combination with advanced therapies in patients with active UC in a 2X2 factorial trial design. Patients would be randomized into four different arms: FMT, AID, FMT+AID and placebo. The advanced therapies (biologics or small molecules) would be given in all four arms as standard therapy. With this design the trial would answer two important questions: a) efficacy of combination treatment with advanced therapies and microbiome manipulation strategies in active UC, and b) comparative efficacy of different microbiome manipulation strategies.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Mar 2025
Typical duration for not_applicable
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 3, 2025
CompletedStudy Start
First participant enrolled
March 15, 2025
CompletedFirst Posted
Study publicly available on registry
April 2, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 15, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 15, 2028
April 2, 2025
March 1, 2025
2 years
March 3, 2025
March 31, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Proportion of Patients Achieving Clinical Remission and Endoscopic Response at 10 weeks
Proportion of patients having- 1. Clinical remission which is defined as the Modified Mayo Score (mMS) \< 2 \\ mMS- Full Title: Modified Mayo Score Range: 0 to 12 Higher Scores = Worse Outcome (A score of 0 represents no disease activity, and a score of 12 represents the most severe disease activity.) 2. Endoscopic response which is defined as Mayo Endoscopic Score (MES) by 1 point MES- Full Title: Mayo Endoscopic Score Range: 0 to 4 Higher Scores = Worse Outcome (A score of 0 represents normal endoscopic findings, and a score of 4 represents severe mucosal damage.
10 weeks
Proportion of patients having clinical remission and endoscopic remission at week 48
Proportion of patients having- 1. Clinical remission which is defined as the Modified Mayo Score (mMS) \< 2 mMS- Full Title: Modified Mayo Score Range: 0 to 12 Higher Scores = Worse Outcome (A score of 0 represents no disease activity, and a score of 12 represents the most severe disease activity.) 2. Endoscopic response which is defined as Mayo Endoscopic Score (MES) by 1 point MES- Full Title: Mayo Endoscopic Score Range: 0 to 4 Higher Scores = Worse Outcome (A score of 0 represents normal endoscopic findings, and a score of 4 represents severe mucosal damage.
48 weeks
Secondary Outcomes (24)
Proportion of patients having clinical response at week 10
10 weeks
Proportion of patients having clinical remission at week 10
10 weeks
Proportion of Patients achieving Symptomatic Response at Week 10
10 weeks
Proportion of Patients achieving Symptomatic Remission at week 10
10 weeks
Proportion of Patients Achieving Endoscopic Response at Week 10
10 weeks
- +19 more secondary outcomes
Study Arms (4)
Fecal Microbiota Transplantation and Anti inflammatory diet and advanced therapy
EXPERIMENTAL1.Oral vancomycin 500 mg BD for 3 days before the first FMT 2.FMT via colonoscopy at 0, 2, and 6 weeks for induction of remission 3.FMT via colonoscopy every 8 weeks (week 10, 18, 26, 34, 42) for maintenance of remission, if the patient is responder to the induction therapy 4.If the patient is a non-responder or has treatment failure to induction, he/she will be withdrawn from the study. 5.Patients with secondary loss of response, in the maintenance phase, will be withdrawn from the study 6.AID for 48 weeks. 7.Advanced therapy as standard dose and schedule
Fecal Microbiota Transplantation and sham diet/standard dietary counselling and advanced therapy
EXPERIMENTAL1.Oral vancomycin 500 mg BD for 3 days before the first FMT 2.FMT via colonoscopy at 0, 2, and 6 weeks for induction of remission 3.FMT via colonoscopy every 8 weeks (week 10, 18, 26, 34, 42) for maintenance of remission, if the patient is responder to the induction therapy 4.If the patient is a non-responder or has treatment failure to induction, he/she will be withdrawn from the study. 5.Patients with secondary loss of response, in the maintenance phase, will be withdrawn from the study 6. Sham AID/Standard dietary counseling for 48 weeks. 7. Advanced therapy as standard dose and schedule
Sham Transplantation and Anti inflammatory diet and advanced therapy
EXPERIMENTAL1.Oral placebo 1 BD for 3 days before first FMT 2.Sham FMT via colonoscopy (instillation of clean water) at 0, 2, and 6 weeks 3.Sham FMT via colonoscopy (instillation of clean water) every 8 weeks (week 10, 18, 26, 34, 42) for maintenance of remission, if the patient is responder to the induction therapy 4.If the patient is a non-responder or has treatment failure to induction therapy, he/she will be withdrawn from the study. 5.Patients with secondary loss of response, in the maintenance phase, will be withdrawn from the study 6. AID for 48 weeks. 7. Advanced therapy as standard dose and schedule.
Sham transplantation and Sham Diet and advanced therapy
SHAM COMPARATOR1.Oral placebo 1 BD for 3 days before first FMT 2. Sham FMT via colonoscopy (instillation of clean water) at 0, 2, and 6 weeks 3. Sham FMT via colonoscopy (instillation of clean water) every 8 weeks (week 10, 18, 26, 34, 42) for maintenance of remission, if the patient is responder to the induction therapy 4. If the patient is a non-responder or has treatment failure to induction therapy, he/she will be withdrawn from the study. 5. Patients with secondary loss of response, in the maintenance phase, will be withdrawn from the study 6. Sham AID/Standard dietary counseling for 48 weeks 7. Advanced therapy as standard dose and schedule
Interventions
This will involve colonoscopic instillation of fecal transplant
The modified diet plan will be given to each study participant
Sham FMT will involve saline infusion via colonoscopy
Dietary counselling alone
Advanced therapy as standard dose and schedule
Eligibility Criteria
You may qualify if:
- Adult (age 18 to 75 years) patients
- Patients with active UC (defined as mMS equal or greater than 3 with rectal bleed score equal or greater than 1 and Endoscopic Mayo score equal or greater than 2 documented within 3 months of randomization or mild symptoms with high inflammatory burden or poor prognostic features).
- Any disease extent E1, E2 or E3. Patients with Proctitis will be limited to 25 percent of the entire pool of patients.
- Patients with an inadequate response, loss of response, or intolerance to conventional therapies example, aminosalicylates, corticosteroids, immunosuppressants or advanced therapies including but not limited to anti TNF alpha agents, anti-integrins, anti IL 12 or IL 23 agents, anti IL 23 agents, JAK inhibitors, or S1P receptor modulators. The last administration of any such treatment must have occurred at least five half-lives prior to randomization.
- Confirmed diagnosis of UC. The diagnosis must be confirmed by endoscopic and histologic evidence and corroborated by a histopathology report
- Subjects who are willing and able to comply with treatment plan, laboratory tests, daily bowel movement diary call and other study procedures
- Subjects who are willing to provide a written informed consent for FMT
- Agree to adhere to the diet schedule
- Infective colitis ruled out Biopsy showing crypt architecture distortion or basal plasmacytosis, OR two sigmoidoscopies, at least 7 days apart showing evidence of endoscopic activity
You may not qualify if:
- Hospitalization of exacerbation of UC requiring intravenous corticosteroids
- Patients already on biologics (anti-tumor necrosis factor inhibitors) or small molecules (tofacitinib) for equal or more than 2 weeks.
- Clinical signs of fulminant colitis or toxic megacolon
- Positive assay or stool culture for pathogens (ova and parasite examination, bacteria) or positive test for Clostridioides difficile toxin or CMV (histology or IHC and or tissue PCR) at screening. (The patients with positive assay will be treated appropriately and tests will be repeated. Those with negative assay and persistent activity will be included in the study.)
- Active or inadequately treated infections, including Mycobacterium tuberculosis.
- Presence of IBD-unclassified, microscopic colitis, ischemic colitis, infectious colitis, or clinical findings suggestive of Crohn's Disease.
- Patients infected with human immunodeficiency virus (HIV)
- Patients with current or past history of malignancy.
- Patients with current or recent history of clinically severe, progressive, or uncontrolled renal, hepatic, Hematological, gastrointestinal, metabolic, endocrine, pulmonary, cardiac, or neurological disease.
- Pregnant females
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (6)
Department of Gastroenterology, Lisie Hospital
Kochi, Kerala, India
Lokmanya Tilak Municipal General Hospital and Lokmanya Tilak Municipal Medical College, Sion
Mumbai, Maharashtra, India
Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences
New Delhi, National Capital Territory of Delhi, VINEET AHUJA, India
Department of Gastroenterology, Dayanand Medical College
Ludhiana, Punjab, DR AJIT SOOD, India
Department of Gastroentrology, Postgraduate Institute of Medical Education and Research,
Chandigarh, Punjab/Haryana, India
Department of Gastroenterology, Institute of Medical Sciences
Varanasi, Uttar Pradesh, India
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Prof Vineet Ahuja, DM Gastroenterology
Department of Gastroenterology, AIIMS, New Delhi
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- FACTORIAL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
March 3, 2025
First Posted
April 2, 2025
Study Start
March 15, 2025
Primary Completion (Estimated)
March 15, 2027
Study Completion (Estimated)
March 15, 2028
Last Updated
April 2, 2025
Record last verified: 2025-03
Data Sharing
- IPD Sharing
- Will not share