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Crohn DiseaseALTER-CDNCT06890650

A Study to Evaluate the Effect of Fecal Transplant and Dietary Changes on Disease Activity in Patients With Newly Diagnosed Active Crohn Disease

A study testing Fecal Microbial Transplantation and Crohns disease exclusion diet in people with Crohn Disease, run by All India Institute of Medical Sciences at 6 sites in India.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

Dysbiosis can be rectified by several methods: antibiotics, prebiotics, probiotics, dietary modulation, and fecal microbiota transplantation. There has been limited success with the isolated use of antibiotics and pre/probiotics in the treatment of IBD. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Crohn Disease
What is being tested?
Fecal Microbial Transplantation and Crohns disease exclusion diet
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
168 participants
Where
6 sitesIndia
Study dates
15 Mar 2025to 15 Mar 2028
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with treatment-naive Crohns disease accessible with ileocolonoscopy
  • Symptom onset of less than 12 months
  • Mild to moderate disease activity with endoscopically active disease
  • CDAI of greater than 150 and less than 450
  • SES-CD of or equal to or greater than 6 (or equal to or greater than 4 if isolated ileal disease)
  • Aged between 18-75 years

Who cannot join

  • Patients with severe disease (CDAI greater than 450, SES-CD greater than 16) or requiring hospitalization
  • Patients who have been received on corticosteroids, immunosuppressants (azathioprine/ 6- mercaptoprine/methotrexate) for greater than 2 weeks
  • Biologicals or small molecule exposure
  • Stricturing (non-passable stricture), fistulising phenotype or perianal fistula/abscess
  • L4 disease
  • Pregnant or lactating women
Show all 12Show fewer
  • Previous surgery for CD
  • Declining consent
  • Not willing for FMT/Dietary advise
  • Patients with current or recent history of clinically severe, progressive, or uncontrolled renal, hepatic, hematological, gastrointestinal, metabolic, endocrine, pulmonary, cardiac, or neurological disease.
  • Positive assay or stool culture for pathogens (ova and parasite examination, bacteria) or positive test for Clostridioides difficile toxin at screening#
  • Patients infected with human immunodeficiency virus (HIV) # 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.

Trial locations and contacts

6 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Prof Vineet Ahuja, DM Gastroenterology contact

+91-9810707170

vineet.aiims@gmail.com

Dr Himanshu Narang, DM Gasteroentrology contact

+91-8800316504

h92narang@gmail.com

6 sites in 1 country

India6 sites, 6 recruiting
  • Department of Gastroentrology, Postgraduate Institute of Medical Education and Research

    Chandigarh, Punjab/Haryana

    Dr Vishal Sharma, DM Gasteroentrology, +91-8872813399, docvishalsharma@gmail.com

    Dr Vishal Sharma, DM Gastroenterology

    Not yet recruiting
  • Department of Gastroenterology, Lisie Hospital

    Kochi, Kerala

    Dr Mathew Philip, DM Gasteroentrology, +91-9846045469, drmathewphilip@gmail.com

    Dr Kiran Josy, DM Gastroentrology, +91-9745243939, drkiranjosy@gmail.com

    Not yet recruiting
  • Department of Gastroenterology, Dayanand Medical College

    Ludhiana, Punjab

    Prof Ajit Sood, DM Gasteroentrology, +91-9815400718, ajitsood10@gmail.com

    Dr Arshdeep Singh, DM Gastroentrology, +91-9815337764, drarshdeepsingh@gmail.com

    Not yet recruiting
  • Lokmanya Tilak Municipal General Hospital and Lokmanya Tilak Municipal Medical College, Sion

    Mumbai, Maharashtra

    Dr Sanjay Chandnani, DM Gasteroentrology, +91-9049708800, sanjy.med@gmail.com

    Dr Sanjay Chandnani, DM Gastroenterology

    Not yet recruiting
  • Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences

    New Delhi, National Capital Territory of Delhi

    Prof Vineet Ahuja, DM Gasteroentrology, +91-9810707170, vineet.aiims@gmail.com

    Dr Himanshu Narang, DM Gastroentrology, +91-8800316504, h92narang@gmail.com

    Recruiting
  • Department of Gastroenterology, Institute of Medical Sciences, Banaras Hindu University

    Varanasi, Uttar Pradesh

    Dr Devesh Prakash Yadav, DM Gasteroentrology, +91-8130856563, devesh.thedoc@gmail.com

    Dr Devesh Prakash Yadav, DM Gastroenterology

    Not yet recruiting

Other trials in India

About this study

Official title: Efficacy of Microbiome Manipulation Strategies (fecAL Microbial Transplantation OR CDED OR Both) in Combination Standard Medical Therapy for Induction and Maintenance of Remission in Mild to Moderate tReatment naÃive Active Crohns Disease (ALTER-CD): a Multicentre Double-blind Factorial Randomized Controlled Trial

Dysbiosis can be rectified by several methods: antibiotics, prebiotics, probiotics, dietary modulation, and fecal microbiota transplantation. There has been limited success with the isolated use of antibiotics and pre/probiotics in the treatment of IBD. Among the measures of dietary manipulation, the use of exclusive enteral nutrition (EEN) has shown superior, or at least equivalent, efficacy compared with steroids in pediatric CD. Although the results in adults are not as encouraging, recent cohort studies in patients with complicated CD have shown good success rates. Definite exclusion diets that exclude pro-inflammatory dietary constituents have also been tested with good clinical efficacy in patients with CD, who even failed treatment with anti-TNF agents. Various dietary approaches, inclusive of exclusive enteral nutrition, partial enteral nutrition, and Crohn's disease exclusion diet have been reported to be of benefit and are associated with changes in gut microbiome. Fecal microbiota transplantation (FMT) defined as the infusion of fecal suspension from a healthy individual into the gastrointestinal tract of an individual with GI disease carries a diverse population of microbiota and their metabolites and has been tested with varying efficacy in IBD. In general, FMT has shown good success rates in randomized control trials in patients with UC who failed conventional agents. Although limited small RCTs exist in CD, cohort studies have also shown good success rates. Therefore, the use of FMT in addition to standard medical therapy, is a concept that has not been previously explored and forms the basis for the present study. Therefore, a well-powered RCT is required to resolve the role of FMT in CD. In this study, patients will be recruited in four arms. Group A includes FMT+CDED+SMT, in Group B FMT+SMT+SHAM DIET, in Group C Sham FMT+CDED+SMT, in Group D Sham FMT+ Sham Diet+ SMT given. 168 patients will be recruited across 6 centers for around 3 years. Follow-up of the patient will be done at 0,2,6 and 10 weeks and 8 weekly up to 48 weeks.

Read the detailed description

This study is a multi-center, double-blind, factorial randomized controlled trial designed to evaluate the efficacy of microbiome manipulation strategies using fecal microbiota transplantation (FMT), Crohn's Disease Exclusion Diet (CDED), or their combination in treatment-naïve patients with mild to moderate active Crohn's Disease (CD).

Study Setting

The trial is conducted at six FMT centers across India, with one additional center dedicated to microbiome analysis:

AIIMS, New Delhi, India Dayanand Medical College, Ludhiana, India PGIMER, Chandigarh, India Lisie Hospital, Kochi, India IMS, BHU, Varanasi, India Sion Hospital, Mumbai, India IIIT-Delhi, India(for microbiome analysis)

Intervention Details:

Fecal Microbiota Transplantation (FMT)- Patients receive a 3-day course of oral vancomycin (500 mg BD) before the first FMT.

Freshly prepared 50 g stool is used for each FMT, and the transplant is administered within 4 hours of preparation.

FMT is delivered via colonoscopy at weeks 0, 2, and 6, followed by 8-weekly maintenance sessions for responders at weeks 10, 18, 26, 34, 42.

Multiple donors (n≥2) are used to ensure microbiome diversity. The first FMT session is instilled in the right colon/terminal ileum post bowel preparation, whereas maintenance sessions involve left-colon infusion without bowel preparation.

Crohn's Disease Exclusion Diet (CDED)- Patients assigned to CDED follow a phased dietary protocol designed to limit exposure to pro-inflammatory dietary components and enhance gut microbiome stability.

CDED consists of an induction and maintenance phase, with structured dietary charts and counseling provided by a dietitian.

Compliance is monitored via telephonic interviews and a dedicated diet tracking app (IBD NutriCare).

Sham Interventions- Sham FMT: Patients receive sterile water or saline infusions via colonoscopy at the same time points as FMT.

Sham Diet: Patients receive general dietary advice but do not follow the CDED protocol.

Randomization and Blinding- Central randomization is conducted using a secure web-based system (REDCap), utilizing stratified randomization based on disease extent.

The study follows a double-blind approach:

Blinded: Patients, clinical assessors, and endoscopic scorers. Unblinded: Endoscopists administering FMT/sham FMT and dietitians providing dietary counseling.

Oral vancomycin and placebo capsules are identically packed to maintain blinding.

Data Collection and Assessments- Baseline Assessments (Week 0) Clinical Assessment: Crohn's Disease Activity Index (CDAI), symptom scoring, and dietary adherence evaluation.

Laboratory Tests: Hemogram, renal/liver function, CRP, ESR, fecal calprotectin, and microbiome profiling.

Endoscopy: SES-CD scoring with high-definition endoscopic video recording. Histology: Biopsy samples are analyzed using Distribution Chronicity and Activity (DCA) scoring.

Follow-up Assessments- Clinical assessments at weeks 0, 2, 4, 6, 10, and every 8 weeks thereafter. Endoscopic assessments at baseline, week 10, and week 48, with central reading of all videos.

Fecal microbiome analysis at baseline, week 10, and week 48. Safety and Monitoring- Adverse Events (AEs) graded per CTCAE criteria (Grades 1-5). Serious Adverse Events (SAEs) include hospitalization, life-threatening conditions, or death.

DSMB reviews interim safety data at week 10 and 24. Emergency unblinding is permitted for critical medical decisions. Data Management- Data is collected using REDCap, with role-based access controls. Endoscopic images and videos are securely stored for centralized analysis. Microbiome sequencing data is processed at IIIT-Delhi. Statistical Considerations- Sample size calculation: 168 patients (42 per arm, 90% power).

Analysis Plan:

Intention-to-treat (ITT) and per-protocol (PP) analyses. Longitudinal mixed-effects modeling for microbiome shift

Conditions
Crohn Disease
Being tested
Fecal Microbial Transplantation, Sham transplantation, Crohns disease exclusion diet, Sham diet
Keywords
Randomized controlled trial, factorial design, Fecal microbiota transplantation, Crohn disease, Crohn disease exclusion diet
Medical subject headings
Crohn Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Fecal Microbial TransplantationOther

    This will involve colonoscopic instillation of fecal transplant

  • Sham transplantationOther

    Sham FMT will involve saline infusion via colonoscopy

  • Crohns disease exclusion dietOther

    The modified diet plan will be given to each study participant

  • Sham dietOther

    Dietary counselling alone

Study groups in NCT06890650
Study groupRoleWhat they receive
Fecal Microbiota Transplantation(FMT) with Crohns disease exclusion diet(CDED)Experimental1. Oral vancomycin 500 mg BD for 3 days before first FMT 2. FMT via colonoscopy at 0, 2 and 6 weeks followed by (if treatment responder) 8 weekly during maintenance between 10 to 48 weeks
Receives: Other: Fecal Microbial Transplantation; Other: Crohns disease exclusion diet
Fecal microbiota transplantation(FMT) and sham dietExperimental1. Oral vancomycin 500 mg BD for 3 days before first FMT 2. FMT via colonoscopy at 0, 2 and 6 weeks followed by (if treatment responder) 10 weeks and then 8 weekly during maintenance between 10 to 42 weeks 3. Diet counselling for 48 weeks
Receives: Other: Fecal Microbial Transplantation; Other: Sham diet
Crohns Disease Exclusion Diet(CDED) and sham transplantationExperimental1. Oral placebo 1 BD for 3 days before first FMT 2. Sham transplantation (clean water) via colonoscopy at 0, 2 and 6 weeks followed by (if treatment responder) 8 weekly during maintenance between 10 to 48 weeks 3.Crohns Disease Exclusion Diet for 48 weeks
Receives: Other: Sham transplantation; Other: Crohns disease exclusion diet
Sham transplantation with Sham dietSham comparator1.Oral placebo 1 BD for 3 days before first sham transplantation 2. Sham colonoscopy with instillation of saline at 0, 2, and 6 weeks followed by (if treatment responder) - 8-weekly during maintenance between 10 to 48 weeks
Receives: Other: Sham transplantation; Other: Sham diet

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proportion of patients with clinical remission and endoscopic response at week 10

    Proportion of patients with clinical remission (defined as CDAI less than 150) and endoscopic response( defined decline in SES-CD by gretaer than 50%).

    Measured: 10 weeks

  2. Proportion of patients with clinical remission and endoscopic remission at week 48

    Proportion of patients with clinical remission (defined as Crohn's disease activity index less than 150) and endoscopic remission (defined as Simple Endoscopic Score for Crohn's disease patients less than 3)

    Measured: 48 weeks

Secondary outcomes (16)
  1. Proportion of patients with clinical response at Week 10

    Proportion of patients with clinical response is defined as either CDAI decrease from baseline of at least 70 points or CDAI less than 150

    Measured: 10 weeks

  2. Proportion of patients with PRO2 Remission at Week 10

    Proportion of patients with PRO2 Remission which is defined as Abdominal pain subscore of not more than 1 (on a scale of 0-3) and liquid or very soft stool (Bristol stool scale type 6 or 7) frequency subscore of not more than 3 calculated as a mean of 7 day count

    Measured: 10 weeks

  3. Proportion of patients with endoscopic response at Week 10

    Proportion of patients with endoscopic response which is defined as 50% reduction from baseline on SES-CD

    Measured: 10 weeks

  4. Fecal microbiome and metabolite signature between responders and non-responders at week 10

    It involves combined analysis of the microorganisms (bacteria, viruses, fungi, etc.) and the small molecules (metabolites) present in a person's stool sample

    Measured: 10 weeks

  5. Proportion of patients with biomarker remission at Week 10

    Proportion of patients with biomarker remission which is defined as fecal calprotectin ≤150 mcg/g

    Measured: 10 weeks

  6. Proportion of patients with adverse events at Week 10

    Proportion of Patients Experiencing Adverse Events (will be assessed according to common criteria for adverse events (CTCEA))

    Measured: 10 weeks

  7. Proportion of patients with clinical response at Week 48

    Proportion of patients with clinical response is defined as either CDAI decrease from baseline of at least 70 points or CDAI less than 150

    Measured: 48 weeks

  8. Proportion of patients with PRO2 remission at Week 48

    Proportion of patients with PRO2 remission is defined as Abdominal pain subscore of not more than 1 (on a scale of 0-3) and liquid or very soft stool (Bristol stool scale type 6 or 7) frequency subscore of not more than 3 calculated as a mean of 7 day count

    Measured: 48 weeks

  9. Proportion of patients with endoscopic response at Week 48

    Proportion of patients with endoscopic response defined as 50% reduction from baseline on SES-CD

    Measured: 48 weeks

  10. Proportion of patients with Endoscopic remission at Week 48 weeks

    Proportion of patients with Endoscopic remission defined as a SES-CD score of 2 or less

    Measured: 48 weeks

  11. Proportion of patients with corticosteroid-free clinical remission at Week 48

    Proportion of patients with corticosteroid-free clinical remission is defined as the CDAI<150 with no exposure to steroids over the previous 8 weeks

    Measured: 48 weeks

  12. Fecal microbiome and metabolite signature between responders and non-responders at Week 48

    It involves combined analysis of the microorganisms (bacteria, viruses, fungi, etc.) and the small molecules (metabolites) present in a person's stool sample

    Measured: 48 weeks

  13. Proportion of patients with biomarker remission at Week 48

    Proportion of patients with biomarker remission which is defined as fecal calprotectin ≤150 mcg/g

    Measured: 48 weeks

  14. Proportion of patients with adverse event at Week 48

    Proportion of Patients Experiencing Adverse Events (will be assessed according to common criteria for adverse events (CTCEA))

    Measured: 48 weeks

  15. Proportion of patients with adverse event at Week 6

    Proportion of Patients Experiencing Adverse Events (will be assessed according to common criteria for adverse events (CTCEA))

    Measured: 6 weeks

  16. Proportion of Patients Experiencing Adverse Events at Week 26

    Proportion of Patients Experiencing Adverse Events (will be assessed according to common criteria for adverse events (CTCEA))

    Measured: 26 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Mar 2025
  2. Study start15 Mar 2025
  3. Primary completion15 Mar 2027 (estimated)
  4. Study completion15 Mar 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Factorial
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
168 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06890650
Sponsor's protocol ID
AIIMSA2989/03.01.2025
Other IDs
EMDR/CARE/12/2023-0000572
Acronym
ALTER-CD
Status last verified
Apr 2025
First submitted
3 Mar 2025
Last updated
4 Apr 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Fecal Microbial Transplantation and Crohns disease exclusion diet in people with Crohn Disease, run by All India Institute of Medical Sciences at 6 sites in India.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 4 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in India. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Prof Vineet Ahuja, DM Gastroenterology (+91-9810707170, vineet.aiims@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proportion of patients with clinical remission and endoscopic response at week 10 (time frame: 10 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Apr 2025.

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