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IBS (Irritable Bowel Syndrome)DORPHINCT06889779

Study Evaluating the Efficacy of Different Mixes of HMO-2FL + Humiome® Post LB on IBS Gastrointestinal Symptoms

A study testing MIX 1 and MIX 2 in people with IBS (Irritable Bowel Syndrome), run by dsm-firmenich Switzerland AG at 12 sites in India.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A randomized, placebo-controlled, double-blind clinical study to evaluate the efficacy of two different mixes of HMO-2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB postbiotic (postbiotic-LB) on Gastrointestinal Symptoms in individuals with Irritable Bowel Syndrome (IBS) Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
IBS (Irritable Bowel Syndrome)
What is being tested?
MIX 1 and MIX 2
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
353 participants
Where
12 sitesIndia
Study dates
27 Mar 2025to 6 Jun 2026
Phase
Interventional
Are there results?
None posted in the registry

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 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

None listed.

Who cannot join

  • Individuals with IBS-M.
  • Treatment with an investigational drug within 30 days/5 half-lives of the drug (whichever longest) prior to screening visit.
  • Individuals with organic disease like infectious diseases, inflammatory diseases, metabolic disorders, neurological diseases, autoimmune disorders, cancer etc. (to be ruled out by physician based on prior history and physical examination).
  • Individuals with a history of surgical resection of the stomach, small intestine or large intestine.
  • Individuals with a history of or complications from inflammatory bowel disease (Crohn's disease or ulcerative colitis), colitis and enteritis.
  • Individuals with a history of any diet-based intolerance (gluten or lactose intolerance).
Show all 26Show fewer
  • Individuals with a history of drug or alcohol abuse within the past 6 months.
  • Individuals with severe depression or an anxiety disorder, which could potentially affect the efficacy evaluation (as determined by the qualified investigator).
  • Individuals with uncontrolled hypertension or on antihypertensive medications.
  • Individuals with serious cardiovascular diseases, respiratory diseases, renal diseases, hepatic diseases, gastrointestinal diseases (excluding IBS), blood diseases or neurological or psychiatric diseases.
  • Individuals who are pregnant, breastfeeding or planning on becoming pregnant throughout the course of the study.
  • Individuals with Type I or Type II diabetes mellitus.
  • Individuals with a history of or current diagnosis of any cancer diagnosed less than 5 years prior to screening. Individuals with cancer in full remission more than 5 years after diagnosis are acceptable.
  • Individuals who are immuno-compromised (HIV positive, on antirejection medication, rheumatoid arthritis and other autoimmune disorders).
  • Individuals with a history of abdominal surgery.
  • Individuals with diarrhoea of any other origin.
  • Individuals currently or in future planning to fast for more than 24 hours.
  • Individuals with an active eating disorder.
  • Individuals who have used an over-the-counter or prescription laxative medication or any other herbal agents affecting GI motility within 2 weeks prior to screening.
  • Individuals who have used pre/pro/post/synbiotic, Human Milk Oligosaccharides (HMOs), or fiber supplements (or probiotic/fiber enriched foods) or FODMAP diet or an antibiotic within 4 weeks prior to screening.
  • Individuals who have used IBS specific treatments within 4 weeks prior to screening.
  • Individuals who currently consume greater than 2 standard alcoholic drinks per day from past 3 months. ((One unit of alcohol is equal to 45 ml of hard liquor, 150 ml of wine or a pint of beer)
  • Smokers (in any number and any format)
  • Individuals with an allergy or sensitivity to the probiotic products.
  • Individuals who are cognitively impaired and/or who are unable to give an informed consent.
  • Individuals who have abnormal laboratory results or any other medical or psychological condition which, in the opinion of the qualified investigator, may adversely affect the Individuals' ability to complete the study or its measures or which may pose significant risk to the individual.

Trial locations and contacts

12 sites in 1 country.

12 sites in 1 country

India12 sites
  • Shivam Hospital

    Dombivali, Maharashtra, 421201

  • Gleneagles Global Hospitals

    Hyderabad, Telangana, 500004

  • Jaipur National University Institute of Medical Sciences and Research Centre

    Jaipur, Rajasthan, 302017

  • Aster Aadhar Hospital

    Kolhāpur, Maharashtra, 416012

  • D Y Patil

    Navi Mumbai, Maharashtra, 400706

  • Samvedna Hospital

    New Colony, Ravindrapuri Varanasi, 221005

  • Dr. Naresh Bansal's Gastro & Liver Clinic

    New Delhi, National Capital Territory of Delhi, 110058

  • Dhanwantari Hospital

    Pune, Maharashtra, 411002

  • Silver Birch

    Pune, Maharashtra, 411041

  • Vishwaraj hospital

    Pune, Maharashtra, 412201

  • D Y Patil Hospital, Medical college and research centre

    Thane, Maharashtra, 400706

  • Shri. B. M. PatilMedical College,Hospital andResearch Centre

    Vijayapura, Karnataka, 586103

Other trials in India

About this study

Official title: A Randomized, Placebo-controlled, Double-blind Study to Evaluate the Efficacy of Two Different Mixes of HMO-2FL + Humiome® Post LB Postbiotic (Postbiotic-LB) on Gastrointestinal Symptoms in Irritable Bowel Syndrome (IBS) Subjects

A randomized, placebo-controlled, double-blind clinical study to evaluate the efficacy of two different mixes of HMO-2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB postbiotic (postbiotic-LB) on Gastrointestinal Symptoms in individuals with Irritable Bowel Syndrome (IBS)

Read the detailed description

This study is a randomized, placebo-controlled, double-blind clinical trial designed to assess the efficacy of two distinct formulations combining Human Milk Oligosaccharide 2'-O-fucosyllactose (HMO-2FL) with Humiome® Post LB postbiotic (postbiotic-LB) in alleviating gastrointestinal symptoms in individuals with Irritable Bowel Syndrome (IBS). Participants will be randomly assigned to receive either of the two active formulations or a placebo, ensuring unbiased comparisons. We aim to evaluate changes in gastrointestinal symptoms, including abdominal pain, bloating, and bowel movement patterns, using validated symptom scoring tools. We will assess the quality of life, gut health biomarkers, and safety profiles. The study employs a double-blind design, where neither participants nor investigators will know the treatment assignments, maintaining the study's integrity. By comparing the effects of different HMO-2FL and postbiotic-LB combinations, this trial aims to provide evidence-based insights into novel dietary supplement options for IBS management, contributing to the growing field of gut health and microbiome-targeted solutions.

Being tested
MIX 1, MIX 2, Placebo
Keywords
Dietary supplement IBS
Medical subject headings
Irritable Bowel Syndrome

What participants receive

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

  • MIX 1Dietary supplement

    Humiome® Post LB postbiotic 300 mg , Human Milk Oligosaccharides 2'-Ofucosyllactose 300 mg 1 capsule per day Orally

  • MIX 2Dietary supplement

    Humiome® Post LB postbiotic 100 mg Human Milk Oligosaccharides 2'-O-fucosyllactose 500 mg 1 capsule per day Orally

  • PlaceboDietary supplement

    Microcrystalline cellulose 1 capsule per day Orally

Study groups in NCT06889779
Study groupRoleWhat they receive
MIX 1Active comparatorHumiome® Post LB postbiotic 300 mg , Human Milk Oligosaccharides 2'-O-fucosyllactose 300 mg 1 capsule per day orally
Receives: Dietary Supplement: MIX 1
MIX 2Active comparatorHumiome® Post LB postbiotic 100 mg Human Milk Oligosaccharides 2'-O-fucosyllactose 500 mg 1 capsule per day orally
Receives: Dietary Supplement: MIX 2
PlaceboPlacebo comparatorMicrocrystalline 1 capsule per day orally
Receives: Dietary Supplement: Placebo

What is being measured

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

  1. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB postbiotic (postbiotic-LB) on IBS symptoms as assessed by IBS Symptom Severity Scale (IBS-SSS), when compared to placebo

    The IBS Severity Scoring System (IBS-SSS) will be used to assess symptom severity. Participants will rate their symptoms over the last 10 days on day 0 and day 42. The change in the average IBS severity score will be calculated and compared to the placebo group.

    Measured: Day 0 & Day 42

Secondary outcomes (13)
  1. To assess the efficacy of daily consumption of two different mixes of HMO 2'-O-fucosyllactose + Humiome® Post LB postbiotic on IBS symptoms as assessed by IBS Symptom Severity Scale , when compared to placebo in individuals

    The IBS Severity Scoring System (IBS-SSS) will be used to assess symptom severity. Participants will rate their symptoms over the last 10 days on day 0 and day 21. The change in the average IBS severity score will be calculated and compared to the placebo group.

    Measured: Day 0, Day 21

  2. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB postbiotic (postbiotic-LB); on IBS symptoms as assessed by IBS-SSS, when compared to baseline in individuals with IBS

    The IBS Severity Scoring System (IBS-SSS) will be used to assess symptom severity. Participants will rate their symptoms over the last 10 days on day 0 and day 42. The change in the average IBS severity score will be calculated and compared to baseline in individuals with IBS.

    Measured: Day 0, Day 21 and Day 42

  3. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB postbiotic (postbiotic-LB); on Abdominal Pain severity compared to baseline, each other and placebo in individuals with

    Decrease in Abdominal pain severity as assessed by APS-NRS (Abdominal pain severity - Numeric rating scale)

    Measured: Day 0, Day 21 and Day 42

  4. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose + Humiome® Post LB postbiotic on participant by Stool consistency (Bristol Stool Form Scale types 3, 4 & 5)

    In gastroenterology, stool consistency is commonly measured using the Bristol Stool Form Scale (BSFS), which categorizes stool into seven types, from type 1 (hard lumps) to type 7 (watery diarrhea). It is a simple, cost-effective tool used as a marker for intestinal transit time and bowel function. In this study, stool consistency will be assessed using the BSFS.

    Measured: Time Frame: Day 0, Day 21 and Day 42

  5. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose + Humiome® Post LB postbiotic on participant by Quality of Life score as assessed by IBS- QoL questionnaire

    The quality of life will be assessed using the IBS-QOL scale. The participants will be asked to score based on their symptoms in the last month at day 0, day 21, and day 42.

    Measured: day 0, day 21, and day 42

  6. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose + Humiome® Post LB postbiotic on participant by decreased Abdominal bloating as assessed by Gastrointestinal Quality of Life

    The Gastrointestinal Quality of Life Index (GIQLI) is a validated 36-item tool for assessing health-related quality of life across five domains: core symptoms (10 items), physical (6 items), psychological (6 items), social (2 items), and disease-specific (8 items). Each item uses a 0-4 Likert scale, with higher scores indicating better quality of life. Total scores range from 0 to 144, where higher scores reflect improved quality of life.

    Measured: day 0, day 21, and day 42

  7. To assess the efficacy on Increased percentage of responders to the treatment based on improvement on primary objective. The IBS-SSS is responsive to treatment; therefore, it has been used as a valid tool for performing responder analysis in IBS studies.

    The number of responders will be calculated separately for the two definitions given below in the present study:

    1. 50 points change in IBS-SSS total score from baseline.
    2. 95 points change in IBS-SSS total score from baseline.

    Measured: day 0, day 21 and day 42

  8. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB postbiotic (postbiotic-LB); on daily number of stool sample

    Will be assessed by Reduced Daily number of stools (stool frequency, assessed per IBS sub-type

    Measured: Daily from start of the study to Week 6

  9. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB postbiotic (postbiotic-LB); on Absolute difference in rescue medication consumption in active and placebo groups.

    Reduced Absolute difference in rescue medication consumption

    Measured: Daily from start of the study to Week 6

  10. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB postbiotic (postbiotic-LB); on Subjective global assessment of IP tolerability by participants.

    Will be measured by subjective global assessment of IP tolerability by participants

    Measured: Daily from start of the study to Week 6

  11. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB postbiotic (postbiotic-LB); on IBS-related mental stress relief

    Will be measured by Perceived stress scale (PSS)

    Measured: Day 0 and day 42

  12. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB on Gut Permeability assessment (Lactulose to Mannitol ratio test) [to be conducted in 30 participants in each arm]

    Will be measured by measuring the decrease in Lactulose Mannitol ratio (30 Participants per arm)

    Measured: Day 0 and day 42

  13. To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB postbiotic (postbiotic-LB); on Stool pH & redox [to be conducted in 30 participants in each arm]

    Improved Stool pH (5.5 to 7.0) \& decreased redox potential of stool [to be conducted in those participants who are undergoing LMR in each arm

    Measured: Day 0 and day 42

Timeline

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

  1. First posted21 Mar 2025
  2. Study start27 Mar 2025
  3. Primary completion6 Jun 2026
  4. Study completion6 Jun 2026

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
Parallel groups
Model description
Parallel Assignment A randomized, placebo-controlled, double-blind
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
353 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06889779
Sponsor's protocol ID
2023-08-14-DORP
Acronym
DORPHI
Status last verified
Jul 2026
First submitted
20 Feb 2025
Last updated
22 Jul 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing MIX 1 and MIX 2 in people with IBS (Irritable Bowel Syndrome), run by dsm-firmenich Switzerland AG at 12 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 0 inclusion and 26 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: finished, as of the sponsor's last update on 22 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 12 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To assess the efficacy of 6 weeks of daily consumption of two different mixes of HMO 2'-O-fucosyllactose (HMO-2FL) + Humiome® Post LB postbiotic (postbiotic-LB) on IBS symptoms as assessed by IBS Symptom Severity Scale (IBS-SSS), when compared to placebo (time frame: Day 0 & Day 42). 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 22 Jul 2026; AzTrials last refreshed its copy on 7 Nov 2026.

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