Irritable Bowel SyndromeTRAMIR-SNCT05803993
Fecal Microbiota Transplantation to Relieve Symptoms of Irritable Bowel Syndrome With Constipation
A study testing Fecal microbiota transplantation (FMT) Single FMT infusion in people with Irritable Bowel Syndrome, run by Fondazione Policlinico Universitario Agostino Gemelli IRCCS at 1 site in Italy.
Trial summary
Irritable bowel syndrome (IBS) is a complex multifactorial functional disorder, whose pathophysiology is largely associated to an impairment of the intestinal microbiota composition, namely dysbiosis. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Irritable Bowel Syndrome
- What is being tested?
- Fecal microbiota transplantation (FMT) Single FMT infusion
- Type of treatment
- Injection or infusion, Surgery or procedure
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 35 participants
- Where
- 1 siteItaly
- Study dates
- 23 Dec 2021to 23 Dec 2025
- 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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Ability to express and give informed consent
- Age ≥ 18 years
- Diagnosis of constipation-predominant or with mixed/alternating stool pattern IBS, according to the Rome IV criteria
- Have performed a colonoscopy within the last 5 years that has ruled out intestinal diseases
Who cannot join
- Taking antibiotics or probiotics within the 8 weeks before the baseline visit
- Patients with chronic inflammatory bowel disease (Crohn's disease, ulcerative colitis, indeterminate colitis or eosinophilic gastroenteritis), malignant neoplasms of the gastroenteric tract, celiac disease, diverticular disease
- Uncontrolled heart failure or severe heart disease with EF < 30%
- Severe respiratory failure
- Serious psychiatric conditions or psychological instability according to the clinician
- Contraindication to fecal microbiota transplantation (high risk of complications related to colonoscopy)
Show all 12Show fewer
- Previous abdominal surgery on the gastroenteric tract (except cholecystectomy, appendectomy and other types of surgery not involving the digestive tract)
- Patients with cutaneous enterostomy
- Pregnancy or lactation
- Concurrent enrollment in other interventional experimental protocols
- Personality unstable or unable to adhere to protocol procedures
- Any clinical condition which, in the opinion of the investigators, may contraindicate enrollment in the study
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Italy1 site, 1 recruiting
- Recruiting
Giovanni Cammarota
Roma
Giovanni Cammarota, 06-30156265, Giovanni.Cammarota@unicatt.it
About this study
Official title: TRApianto di Microbiota Intestinale in Pazienti Affetti da Sindrome Dell'Intestino IRritabile Con Stipsi: Studio Clinico Randomizzato Controllato in Singolo Centro
Irritable bowel syndrome (IBS) is a complex multifactorial functional disorder, whose pathophysiology is largely associated to an impairment of the intestinal microbiota composition, namely dysbiosis. Thus, the modulation of the gut microbiota has been proposed as a possible therapeutic strategy for IBS patients alongside with current available drugs. Fecal microbiota transplantation (FMT) is a promising strategy to restore intestinal eubiosis. In this randomised double-blind placebo-controlled trial patients diagnosed with IBS with constipation are assigned with 1:1 ratio to receive FMT from healthy donor or autologous FMT (placebo group) to assess the effectiveness of FMT on IBS symptoms and quality of life, to evaluate the safety of FMT among IBS patients and to estimate any change in the gut microbiota composition of IBS patients after the FMT.
Read the detailed description
Irritable bowel syndrome (IBS) is a common chronic functional disorder with a prevalence varying between 10 and 15%. IBS is characterized by recurrent chronic abdominal pain associated with altered defecation. Intestinal dysbiosis is thought to be one of the major drivers in IBS pathophysiology, since several studies have shown that there are substantial differences in microbial composition between IBS patients and healthy subjects. Moreover, the modulation of the gut microbiota in IBS patients seems a promising therapeutic approach, since a benefit on symptoms with certain antibiotics, probiotics, prebiotics, synbiotics and diet has been reported. Fecal microbiota transplantation (FMT) from healthy donors is generally considered a safe and well-tolerated procedure ant it is described to be capable of restoring eubiosis of the recipient in the long term. Recently, a certain effectiveness of FMT in ameliorating intestinal symptoms, psychological aspects and quality of life alongside with a restoration of eubiosis among IBS patients has been described. This is a prospective randomized double-blind placebo-controlled trial aimed at estimating the benefits of FMT among IBS patients with constipation. The assessment of the effectiveness on IBS symptoms and quality of life, the evaluation of the safety and the changes in the gut microbiota composition (performed with shotgun sequencing techniques) among IBS patients will be evaluated before after the FMT. 35 patients will be enrolled in 24 months. Recruited subjects will be randomized with 1:1 ratio to receive FMT from healthy donors or autologous FMT (placebo). The effectiveness of FMT in improving the IBS symptoms and IBS-related quality of life will be estimated with the IBS-SSS and IBS-QOL questionnaire, respectively, before FMT and after 30, 60, 90 and 365 days. Moreover, the frequency and form of evacuations according to the Bristol scale will be recorded at the same timepoints from diaries provided to the patients. Changes in gut microbiota composition will be estimated by comparing the composition of the faecal microbiota of the recipient before and 90 days after the FMT. The data will be evaluated using Intention-to-treat (ITT) statistical analysis and per-protocol (PP) analysis. Difference between the two groups will be calculated by two-tailed tests, Wilcoxon-Rank Sum Test for continuous variables and by the Fisher's exact probability test for categorical variables. The response rate to FMT will be evaluated by the Fisher's exact test. Adverse events will be assessed. The composition of the faecal microbiota of the recipient before and after the FMT will also be analysed and also compared with the healthy donor's one using the UniFrac method.
- Conditions
- Irritable Bowel Syndrome
- Being tested
- Fecal microbiota transplantation (FMT) Single FMT infusion
- Keywords
- Gut microbiota, Fecal microbiota transplantation
- 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.
Fecal microbiota transplantation (FMT) Single FMT infusionProcedure or surgery
Single FMT infusion via colonoscopy
| Study group | Role | What they receive |
|---|---|---|
| FMT from healthy donor | Experimental | Subjects receiving a single infusion FMT via colonoscopy from healthy donor Receives: Procedure: Fecal microbiota transplantation (FMT) Single FMT infusion |
| Autologous FMT | Placebo comparator | Subjects receiving a single infusion autologous FMT via colonoscopy Receives: Procedure: Fecal microbiota transplantation (FMT) Single FMT infusion |
What is being measured
The primary outcome is the main question the study is designed to answer.
Improving IBS symptoms assessed with the IBS severity scoring system (IBS-SSS)
To assess the effectiveness of healthy donor FMT in improving the symptoms of IBS without constipation compared to autologous microbiota transplantation using the IBS-SSS (< 175: mild IBS; 175-300: moderate IBS; > 300: severe IBS)
Measured: 365 days
Number and severity grade of adverse events after FMT
To assess the number and severity grade of adverse events occurred after FMT
Measured: 365 days
Secondary outcomes (2)
Quality of life related to IBS evaluated with the IBS Quality of Life (IBS-QOL) questionnaire
To assess the effectiveness of healthy donor gut microbiota transplantation in improving the quality of life of patients with IBS without constipation compared to autologous FMT using the IBS-QOL questionnaire (range: 34-170; lower scores indicate better IBS-QoL)
Measured: 365 days
Engraftment of donor microbiota after FMT, evaluated through the 16s rRNA sequencing
Changes in the fecal microbiota of the recipients after FMT from healthy donor or autologous microbiota transplantation will be evaluated through the 16s rRNA sequencing and compared to the baseline condition
Measured: 365 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Apr 2023
- Study start23 Dec 2021
- Primary completion23 Sep 2025 (estimated)
- Study completion23 Dec 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for Irritable Bowel SyndromeStudies of the same condition, open and under way.
- More trials run by Fondazione Policlinico Universitario Agostino Gemelli IRCCSThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Recruited subjects will be randomized with 1:1 ratio to receive FMT from healthy donors or autologous FMT (placebo). Patients will be evaluated before FMT and after 30, 60, 90 and 365 days
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 35 participants (estimated)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Cammarota Giovanni, Fondazione Policlinico Universitario Agostino Gemelli IRCCS
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05803993
- Sponsor's protocol ID
- 4475
- Acronym
- TRAMIR-S
- Status last verified
- Mar 2025
- First submitted
- 10 Mar 2023
- Last updated
- 11 Mar 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Ianiro G, Masucci L, Quaranta G, Simonelli C, Lopetuso LR, Sanguinetti M, Gasbarrini A, Cammarota G. Randomised clinical trial: faecal microbiota transplantation by colonoscopy plus vancomycin for the treatment of severe refractory Clostridium difficile infection-single versus multiple infusions. Aliment Pharmacol Ther. 2018 Jul;48(2):152-159. doi: 10.1111/apt.14816. Epub 2018 May 30.
PubMed 29851107Cammarota G, Ianiro G, Tilg H, Rajilic-Stojanovic M, Kump P, Satokari R, Sokol H, Arkkila P, Pintus C, Hart A, Segal J, Aloi M, Masucci L, Molinaro A, Scaldaferri F, Gasbarrini G, Lopez-Sanroman A, Link A, de Groot P, de Vos WM, Hogenauer C, Malfertheiner P, Mattila E, Milosavljevic T, Nieuwdorp M, Sanguinetti M, Simren M, Gasbarrini A; European FMT Working Group. European consensus conference on faecal microbiota transplantation in clinical practice. Gut. 2017 Apr;66(4):569-580. doi: 10.1136/gutjnl-2016-313017. Epub 2017 Jan 13.
PubMed 28087657Ianiro G, Valerio L, Masucci L, Pecere S, Bibbo S, Quaranta G, Posteraro B, Curro D, Sanguinetti M, Gasbarrini A, Cammarota G. Predictors of failure after single faecal microbiota transplantation in patients with recurrent Clostridium difficile infection: results from a 3-year, single-centre cohort study. Clin Microbiol Infect. 2017 May;23(5):337.e1-337.e3. doi: 10.1016/j.cmi.2016.12.025. Epub 2017 Jan 3.
PubMed 28057560Cammarota G, Ianiro G, Magalini S, Gasbarrini A, Gui D. Decrease in Surgery for Clostridium difficile Infection After Starting a Program to Transplant Fecal Microbiota. Ann Intern Med. 2015 Sep 15;163(6):487-8. doi: 10.7326/L15-5139. No abstract available.
PubMed 26370022Cammarota G, Masucci L, Ianiro G, Bibbo S, Dinoi G, Costamagna G, Sanguinetti M, Gasbarrini A. Randomised clinical trial: faecal microbiota transplantation by colonoscopy vs. vancomycin for the treatment of recurrent Clostridium difficile infection. Aliment Pharmacol Ther. 2015 May;41(9):835-43. doi: 10.1111/apt.13144. Epub 2015 Mar 1.
PubMed 25728808
Study at a glance
From the registry record, last updated by the sponsor on 11 Mar 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- TRApianto di Microbiota Intestinale in Pazienti Affetti da Sindrome Dell'Intestino IRritabile Con Stipsi: Studio Clinico Randomizzato Controllato in Singolo Centro
- ClinicalTrials.gov ID
- NCT05803993
- Acronym / sponsor ID
- TRAMIR-S / 4475
- Conditions
- Irritable Bowel Syndrome
- Keywords
- Gut microbiota, Fecal microbiota transplantation
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 35 participants (estimated)
- Lead sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCSUniversity, hospital or other
- Study start
- 23 Dec 2021 (actual)
- Primary completion
- 23 Sep 2025 (estimated)
- Study completion
- 23 Dec 2025 (estimated)
- First posted
- 7 Apr 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Irritable bowel syndrome (IBS) is a complex multifactorial functional disorder, whose pathophysiology is largely associated to an impairment of the intestinal microbiota composition, namely dysbiosis. Thus, the modulation of the gut microbiota has been proposed as a possible therapeutic strategy for IBS patients alongside with current available drugs. Fecal microbiota transplantation (FMT) is a promising strategy to restore intestinal eubiosis. In this randomised double-blind placebo-controlled trial patients diagnosed with IBS with constipation are assigned with 1:1 ratio to receive FMT from healthy donor or autologous FMT (placebo group) to assess the effectiveness of FMT on IBS symptoms and quality of life, to evaluate the safety of FMT among IBS patients and to estimate any change in the gut microbiota composition of IBS patients after the FMT.
Detailed description
Irritable bowel syndrome (IBS) is a common chronic functional disorder with a prevalence varying between 10 and 15%. IBS is characterized by recurrent chronic abdominal pain associated with altered defecation. Intestinal dysbiosis is thought to be one of the major drivers in IBS pathophysiology, since several studies have shown that there are substantial differences in microbial composition between IBS patients and healthy subjects. Moreover, the modulation of the gut microbiota in IBS patients seems a promising therapeutic approach, since a benefit on symptoms with certain antibiotics, probiotics, prebiotics, synbiotics and diet has been reported. Fecal microbiota transplantation (FMT) from healthy donors is generally considered a safe and well-tolerated procedure ant it is described to be capable of restoring eubiosis of the recipient in the long term. Recently, a certain effectiveness of FMT in ameliorating intestinal symptoms, psychological aspects and quality of life alongside with a restoration of eubiosis among IBS patients has been described. This is a prospective randomized double-blind placebo-controlled trial aimed at estimating the benefits of FMT among IBS patients with constipation. The assessment of the effectiveness on IBS symptoms and quality of life, the evaluation of the safety and the changes in the gut microbiota composition (performed with shotgun sequencing techniques) among IBS patients will be evaluated before after the FMT. 35 patients will be enrolled in 24 months. Recruited subjects will be randomized with 1:1 ratio to receive FMT from healthy donors or autologous FMT (placebo). The effectiveness of FMT in improving the IBS symptoms and IBS-related quality of life will be estimated with the IBS-SSS and IBS-QOL questionnaire, respectively, before FMT and after 30, 60, 90 and 365 days. Moreover, the frequency and form of evacuations according to the Bristol scale will be recorded at the same timepoints from diaries provided to the patients. Changes in gut microbiota composition will be estimated by comparing the composition of the faecal microbiota of the recipient before and 90 days after the FMT. The data will be evaluated using Intention-to-treat (ITT) statistical analysis and per-protocol (PP) analysis. Difference between the two groups will be calculated by two-tailed tests, Wilcoxon-Rank Sum Test for continuous variables and by the Fisher's exact probability test for categorical variables. The response rate to FMT will be evaluated by the Fisher's exact test. Adverse events will be assessed. The composition of the faecal microbiota of the recipient before and after the FMT will also be analysed and also compared with the healthy donor's one using the UniFrac method.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
- Model description
- Recruited subjects will be randomized with 1:1 ratio to receive FMT from healthy donors or autologous FMT (placebo). Patients will be evaluated before FMT and after 30, 60, 90 and 365 days
| Arm | Type | Receives |
|---|---|---|
| FMT from healthy donor | Experimental | Procedure: Fecal microbiota transplantation (FMT) Single FMT infusionSubjects receiving a single infusion FMT via colonoscopy from healthy donor |
| Autologous FMT | Placebo comparator | Procedure: Fecal microbiota transplantation (FMT) Single FMT infusionSubjects receiving a single infusion autologous FMT via colonoscopy |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Ability to express and give informed consent
- Age ≥ 18 years
- Diagnosis of constipation-predominant or with mixed/alternating stool pattern IBS, according to the Rome IV criteria
- Have performed a colonoscopy within the last 5 years that has ruled out intestinal diseases
Key exclusion criteria (12 listed)
- Taking antibiotics or probiotics within the 8 weeks before the baseline visit
- Patients with chronic inflammatory bowel disease (Crohn's disease, ulcerative colitis, indeterminate colitis or eosinophilic gastroenteritis), malignant neoplasms of the gastroenteric tract, celiac disease, diverticular disease
- Uncontrolled heart failure or severe heart disease with EF < 30%
- Severe respiratory failure
- Serious psychiatric conditions or psychological instability according to the clinician
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Fecal microbiota transplantation (FMT) Single FMT infusionSingle FMT infusion via colonoscopy | Procedure or surgery | Autologous FMT, FMT from healthy donor |
Primary outcome
Improving IBS symptoms assessed with the IBS severity scoring system (IBS-SSS)
Time frame: 365 days
To assess the effectiveness of healthy donor FMT in improving the symptoms of IBS without constipation compared to autologous microbiota transplantation using the IBS-SSS (< 175: mild IBS; 175-300: moderate IBS; > 300: severe IBS)
Number and severity grade of adverse events after FMT
Time frame: 365 days
To assess the number and severity grade of adverse events occurred after FMT
2 secondary outcomes
Quality of life related to IBS evaluated with the IBS Quality of Life (IBS-QOL) questionnaire
Time frame: 365 days
Engraftment of donor microbiota after FMT, evaluated through the 16s rRNA sequencing
Time frame: 365 days
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Mar 2025.
- Background: PubMed 29851107Ianiro G, Masucci L, Quaranta G, Simonelli C, Lopetuso LR, Sanguinetti M, Gasbarrini A, Cammarota G. Randomised clinical trial: faecal microbiota transplantation by colonoscopy plus vancomycin for the treatment of severe refractory Clostridium difficile infection-single versus multiple infusions. Aliment Pharmacol Ther. 2018 Jul;48(2):152-159. doi: 10.1111/apt.14816. Epub 2018 May 30.
- Background: PubMed 28087657Cammarota G, Ianiro G, Tilg H, Rajilic-Stojanovic M, Kump P, Satokari R, Sokol H, Arkkila P, Pintus C, Hart A, Segal J, Aloi M, Masucci L, Molinaro A, Scaldaferri F, Gasbarrini G, Lopez-Sanroman A, Link A, de Groot P, de Vos WM, Hogenauer C, Malfertheiner P, Mattila E, Milosavljevic T, Nieuwdorp M, Sanguinetti M, Simren M, Gasbarrini A; European FMT Working Group. European consensus conference on faecal microbiota transplantation in clinical practice. Gut. 2017 Apr;66(4):569-580. doi: 10.1136/gutjnl-2016-313017. Epub 2017 Jan 13.
- Background: PubMed 28057560Ianiro G, Valerio L, Masucci L, Pecere S, Bibbo S, Quaranta G, Posteraro B, Curro D, Sanguinetti M, Gasbarrini A, Cammarota G. Predictors of failure after single faecal microbiota transplantation in patients with recurrent Clostridium difficile infection: results from a 3-year, single-centre cohort study. Clin Microbiol Infect. 2017 May;23(5):337.e1-337.e3. doi: 10.1016/j.cmi.2016.12.025. Epub 2017 Jan 3.
- Background: PubMed 26370022Cammarota G, Ianiro G, Magalini S, Gasbarrini A, Gui D. Decrease in Surgery for Clostridium difficile Infection After Starting a Program to Transplant Fecal Microbiota. Ann Intern Med. 2015 Sep 15;163(6):487-8. doi: 10.7326/L15-5139. No abstract available.
- Background: PubMed 25728808Cammarota G, Masucci L, Ianiro G, Bibbo S, Dinoi G, Costamagna G, Sanguinetti M, Gasbarrini A. Randomised clinical trial: faecal microbiota transplantation by colonoscopy vs. vancomycin for the treatment of recurrent Clostridium difficile infection. Aliment Pharmacol Ther. 2015 May;41(9):835-43. doi: 10.1111/apt.13144. Epub 2015 Mar 1.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Fecal microbiota transplantation (FMT) Single FMT infusion in people with Irritable Bowel Syndrome, run by Fondazione Policlinico Universitario Agostino Gemelli IRCCS at 1 site in Italy.
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 4 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 11 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Italy. 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?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Improving IBS symptoms assessed with the IBS severity scoring system (IBS-SSS) (time frame: 365 days). 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?
On the ClinicalTrials.gov record for NCT05803993, which also lists 5 linked publications.
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 11 Mar 2025.