NCT04899869

Brief Summary

Irritable bowel syndrome (IBS) is the most common functional bowel disorder, being present in approximately 10% of adult Europoid population. The etiology of IBS is elusive. Literature indicates that modification of patients´colonic microbiota might ameliorate the condition. Here we test an intervention by faecal microbiota transplantation of artificially inflated microbiome diversity, versus autoclaved placebo.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
61

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2021

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 19, 2021

Completed
6 days until next milestone

First Posted

Study publicly available on registry

May 25, 2021

Completed
23 days until next milestone

Study Start

First participant enrolled

June 17, 2021

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 27, 2024

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

April 29, 2024

Completed
Last Updated

May 24, 2024

Status Verified

May 1, 2024

Enrollment Period

2.8 years

First QC Date

May 19, 2021

Last Update Submit

May 23, 2024

Conditions

Keywords

IBS - D, IBS - M

Outcome Measures

Primary Outcomes (1)

  • Change in the IBS severity symptom score (IBS-SSS)

    Change in the IBS severity symptom score (IBS-SSS) in the active microbiota group relative to the placebo group.

    The difference between the score at four weeks after the intervention (study weeks 5 or 13, respectively) and the baseline score (week -1 in 'Active microbiota first' group or week 8 in 'Inactive microbiota first' group)

Secondary Outcomes (14)

  • The acute change in the IBS severity symptom score (IBS-SSS)

    study weeks 3 and 11, respectively

  • The long-term change in the IBS severity symptom score (IBS-SSS)

    baseline and study week 32

  • Change in number of loose stools per day

    baseline and study week 32

  • Change in stool consistency

    baseline and study week 32

  • Change in abdominal pain

    baseline and study week 32

  • +9 more secondary outcomes

Study Arms (3)

Group A (active microbiota first)

OTHER

Patients will first receive two enemas of active study microbiota mixture (deep-frozen stored stool microbiota mixed from eight donors in order to increase its diversity), then after eight weeks they will receive two enemas with placebo.

Other: Faecal microbiota transplantation with active study microbiota first

Group B (inactive microbiota first)

OTHER

Patients will first receive placebo, then the active study microbiota mixture.

Other: Faecal microbiota transplantation with inactive autoclaved study microbiota first

Group C (inactive microbiota only)

OTHER

Patients will receive similarly timed enemas with placebos only.

Other: Faecal microbiota transplantation with inactive autoclaved study microbiota only

Interventions

2x enema with active study microbiota; after 8 wks 2x enema with inactive autoclaved study microbiota

Group A (active microbiota first)

2x enema with inactive autoclaved study microbiota; after 8 wks 2x enema with active study microbiota

Group B (inactive microbiota first)

2x enema with inactive autoclaved study microbiota; after 8 wks 2x enema with inactive autoclaved study microbiota

Group C (inactive microbiota only)

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diarrhea Predominant Irritable Bowel Syndrome (IBS-D) or Irritable Bowel Syndrome with mixed bowel habits (IBS-M) according to the Rome IV criteria

You may not qualify if:

  • The use of antibiotics within one month prior to faecal microbiota transplantation
  • The use of probiotics within one month prior to faecal microbiota transplantation
  • History of inflammatory bowel disease or gastrointestinal malignancy, systemic autoimmune diseases (ongoing or in history)
  • Previous abdominal surgery (other than appendectomy or cholecystectomy or hernioplasty or cesarean section)
  • HIV infection or other active infection
  • Renal or hepatic disease (both defined by biochemistry workup)
  • Diabetes mellitus, abnormal thyroid functions not controlled by thyroid medications
  • Bipolar disorder or schizophrenia (ongoing or history thereof), moderately severe depression defined by Patient Health Questionnaire-9 (PHQ-9) score \> 15
  • Anxiety defined by a Generalised Anxiety Disorder 7 (GAD7) score \> 10
  • Current pregnancy and lactation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Thomayer University Hospital

Prague, 14059, Czechia

Location

Related Publications (1)

  • Hurych J, Vejmelka J, Hlinakova L, Kramna L, Larionov V, Kulich M, Cinek O, Kohout P. Protocol for faecal microbiota transplantation in irritable bowel syndrome: the MISCEAT study - a randomised, double-blind cross-over study using mixed microbiota from healthy donors. BMJ Open. 2022 Jun 27;12(6):e056594. doi: 10.1136/bmjopen-2021-056594.

MeSH Terms

Interventions

Fecal Microbiota Transplantation

Intervention Hierarchy (Ancestors)

Biological TherapyTherapeutics

Study Officials

  • Pavel Kohout

    Thomayer University Hospital, Prague, Czech Republic

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Masking Details
double-blind
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: Each study subject will undergo two pairs of faecal microbiota transplantation eight weeks apart (a total of four enemas for each patient). Our study design has several specific features: (a) Two consecutive transfers were designed to improve study microbiota engraftment. Before the first of every transfer pairs, the subjects will receive a reduced dose of oral polyethylene glycol for partial bowel preparation. (b) To help discern potential carry-over effects, a placebo-only group was included; this also enables us to assess long-term effects of the intervention. (c) The transferred microbiota is identical throughout the study, having been mixed beforehand, aliquoted and deep frozen. Its alpha diversity was artificially increased by mixing stools from several donors. (d) Placebo is made of the same mixture by careful autoclaving.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Pavel Kohout, Assoc. Prof., MD, PhD.

Study Record Dates

First Submitted

May 19, 2021

First Posted

May 25, 2021

Study Start

June 17, 2021

Primary Completion

March 27, 2024

Study Completion

April 29, 2024

Last Updated

May 24, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will share

Only the researchers involved in the study have access to the final study dataset (IBS-SSS, frequency of urgent defecations, Bristol stool scale, abdominal pain and bloating), which will be shared in an anonymised form via the Zenodo repository.

Shared Documents
STUDY PROTOCOL, ICF, CSR

Locations