NCT04138186

Brief Summary

A randomized, double-blind, placebo-controlled pilot study in patients with IBS-D according to Rome IV criteria evaluating the clinical efficacy and safety of oral administration of 2g G-PUR® tid compared to placebo in a cohort of 30 patients over an active treatment period of 12 weeks.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2019

Geographic Reach
1 country

1 active site

Status
unknown

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

Study Start

First participant enrolled

October 2, 2019

Completed
14 days until next milestone

First Submitted

Initial submission to the registry

October 16, 2019

Completed
8 days until next milestone

First Posted

Study publicly available on registry

October 24, 2019

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2021

Completed
Last Updated

November 13, 2020

Status Verified

November 1, 2020

Enrollment Period

1.3 years

First QC Date

October 16, 2019

Last Update Submit

November 12, 2020

Conditions

Keywords

IBSDiarrheaGastrointestinal function disorder

Outcome Measures

Primary Outcomes (1)

  • The rate of responders for the patient's global assessment of relief using the last four assessments in the treatment period.

    12 weeks

Secondary Outcomes (24)

  • Patient's global assessment of symptom relief measured on a 5-point Likert scale (1= very good and 5= very poor)

    12 weeks

  • Incidence of adverse (and serious) events

    12 weeks

  • Daily intensity of bloating using a 11-point numerical rating scale (NRS) where 0 represents no bloating discomfort and 10 represents very severe bloating discomfort

    12 weeks

  • Daily urgency using a 11-point numerical rating scale (NRS) where 0 represents no defecation urgency and 10 represents worst imaginable urgency

    12 weeks

  • Daily stool frequency

    12 weeks

  • +19 more secondary outcomes

Study Arms (2)

2.0g G-PUR® capsules

EXPERIMENTAL
Device: 2.0g G-PUR®, oral administration

Placebo capsules

PLACEBO COMPARATOR
Device: Placebo, oral administration

Interventions

tid for 12 weeks

2.0g G-PUR® capsules

tid for 12 weeks

Placebo capsules

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18-75 years
  • Recurrent abdominal pain, at least one day/week in the last 3 months (with symptom onset at least 6 months before diagnosis), associated with two or more of the following criteria (Rome IV criteria)
  • Related to defecation
  • Associated with a change in frequency of stool
  • Associated with a change in form (appearance) of stool.
  • Moderate to severe abdominal pain as defined with an IBS Symptoms Severity Scale (IBS-SSS) score \> 175
  • Patient reports that abnormal bowel movements are usually diarrhea with more than one-fourth (25%) of bowel movements with Bristol stool form types 6 or 7 and less than one-fourth (25%) of bowel movements with Bristol stool form types 1 or 2. Starting during the screening/run-in phase, all patients will keep diaries of stool frequency and consistency. Stool consistency will be assessed according to the Bristol Stool Form scale (Lewis and Heaton, 1997)
  • Stable eating habits, within one month before randomization
  • In patients \> 50 years colonoscopy performed during the past 5 years demonstrates no pathology associated with the symptoms reported for IBS
  • Ability to understand trial instructions and to comply with treatment
  • Patient agree to be compliant for study interactive web - response system schedule confirmed at time of randomization
  • Written informed consent prior to enrolment

You may not qualify if:

  • Patient has exclusively constipation-predominant IBS (IBS-C) that is characterized by \< 3 bowel movements/week or hard and lumpy stools (e.g. Bristol stool form types 1 or 2)
  • Patient has irritable bowel syndrome with mixed bowel habits (IBS-M) with varying symptoms of constipation and diarrhea
  • Calprotectin stool value \> 200mg/kg stool
  • Known hypersensitivity to the IMD (known aluminium and/or silicon hypersensitivity)
  • Patient has failed to record \>50% of daily diary entries during run-in period
  • Rectal bleeding in the absence of documented bleeding hemorrhoids or anal fissures assessed by fecal occult blood test
  • History of major gastric, hepatic, pancreatic or intestinal surgery or perforation with exception of appendectomy, cholecystectomy and inguinal hernia
  • Patients with a history of positive tests for ova, parasites or clostridium difficile must undergo repeat testing, which must be negative, during the screening period
  • Use of the following prohibited medications: any antibiotics including rifaximin within the past 2 months or during treatment period, use of cholestyramine during entire study period, during run-in phase and during the treatment period any use of concomitant medication effecting the gastrointestinal movement and/or function (e.g. anticholinergic drugs, 5-HT3 receptor antagonists, prokinetic agents, intestinal flora regulating drugs, parasympathetic inhibitors, opioids or eluxadoline)
  • Use of immunosuppressive drugs within the last 6 months or planned use of immunosuppressive drugs during the study
  • Patients treated with tricyclic antidepressants
  • Serotonin re-uptake inhibitors are allowed if the patient is at stable dose for at least 8 weeks prior to signing informed consent and the dose will remain stable throughout the duration of the study.
  • History of inflammatory or immune-mediated gastrointestinal (GI) disorders including inflammatory bowel disease (i.e., Crohn's disease, ulcerative colitis) and celiac disease (by anamnesis and assessed by tTGA levels)
  • Active infection, or abnormalities in laboratory testing, vital signs, or physical examination at screening
  • Participation in any other interventional clinical trial within 4 weeks before study participation
  • +9 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Clinical Pharmacology, Medical University of Vienna

Vienna, Austria

RECRUITING

MeSH Terms

Conditions

Diarrhea

Interventions

Administration, Oral

Condition Hierarchy (Ancestors)

Signs and Symptoms, DigestiveSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Drug Administration RoutesDrug TherapyTherapeutics

Study Officials

  • Michael Wolzt, Prof. Dr.

    Department of Clinical Pharmacology, Medical University of Vienna

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Michael Wolzt, Prof. Dr.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 16, 2019

First Posted

October 24, 2019

Study Start

October 2, 2019

Primary Completion

February 1, 2021

Study Completion

February 1, 2021

Last Updated

November 13, 2020

Record last verified: 2020-11

Data Sharing

IPD Sharing
Will not share

Locations