NCT05175131

Brief Summary

The parallel three-group study of efficacy and safety was planned to investigate the reduction in abdominal pain and bloating during treatment with the fixed-dose combination of Mebeverine + Simethicone versus Duspatalin® and Espumisan® as a monotherapy (Protocol No. MESI3001).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
465

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Nov 2020

Shorter than P25 for phase_3

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

Study Start

First participant enrolled

November 27, 2020

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 18, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 18, 2021

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

December 14, 2021

Completed
20 days until next milestone

First Posted

Study publicly available on registry

January 3, 2022

Completed
2 years until next milestone

Results Posted

Study results publicly available

January 3, 2024

Completed
Last Updated

September 16, 2025

Status Verified

September 1, 2025

Enrollment Period

6 months

First QC Date

December 14, 2021

Results QC Date

April 26, 2022

Last Update Submit

September 15, 2025

Conditions

Keywords

Mebeverine+SimethiconeDuspatalinabdominal painbloating/flatulencefunctional bowel disorderfixed dose combinationNRS11

Outcome Measures

Primary Outcomes (1)

  • Change From Baseline of Sum of NRS-11 Abdominal Pain and Bloating/Flatulence Intensity Scores After 4 Weeks of Treatment.

    The baseline abdominal pain and bloating/flatulence intensity was determined as the average of the Numeric rating scale (NRS-11) daily assessment during 7 days before randomization. The Week 4 assessment was the average from last 7 days of the corresponding week. The scale is a horizontal 10 cm line with the numbers from 0 to 10 located on it, where 0 is "no pain/bloating", 10 is "most severe pain/bloating you can imagine".

    4 weeks

Secondary Outcomes (4)

  • Change From Baseline of NRS-11 Pain Intensity After 4 Weeks of Treatment

    4 weeks

  • Change From Baseline of NRS-11 Bloating/Flatulence Intensity After 4 Weeks of Treatment

    4 weeks

  • Change in Number of Days Per Week During Study Treatment Period When Drotaverine Was Taken.

    4 weeks

  • Change in Quality of Life Evaluation Using IBSQOL Questionnaire Versus Baseline.

    4 weeks

Study Arms (3)

Mebeverine+Simethicone combination

EXPERIMENTAL

three times a day per os

Drug: Mebeverine+Simethicone

mebeverine

ACTIVE COMPARATOR

three times a day per os

Drug: Mebeverine

simethicone

ACTIVE COMPARATOR

80 mg (2 capsules 40 mg) three times a day per os

Drug: Simethicone

Interventions

fixed-dose combination, film-coated tablets, 135 mg + 80 mg

Mebeverine+Simethicone combination

Duspatalin®, coated tablets 135 mg

mebeverine

Espumisan® capsules 40 mg

simethicone

Eligibility Criteria

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

You may qualify if:

  • Signed Informed Consent Form;
  • Males and females aged 18 to 75 years old (inclusive);
  • Abdominal pain and bloating/flatulence due to functional bowel disorder (including IBS, chronic functional constipation, chronic functional diarrhea or functional abdominal bloating);
  • Episodes of abdominal pain for at least 3 months, with a frequency of at least 3 times a month;
  • Abdominal pain intensity of 4 to 9 points (inclusive) when assessed on the NRS-11 scale (i.e. weekly average, with daily recording of the worst pain for the last 24 hours during last week of Screening and Run-in period);
  • Bloating/flatulence intensity of of 4 to 9 points (inclusive) when assessed on the NRS-11 scale (i.e. weekly average, with daily recording of the worst bloating episode for the last 24 hours during last week of Screening and Run-in period);
  • Patients' consent to use adequate contraception methods throughout the study. Adequate contraception methods include:
  • oral contraceptives or contraceptive patches,
  • condom or diaphragm (barrier method) with spermicide, or
  • an intrauterine device

You may not qualify if:

  • Hypersensitivity to mebeverine, simethicone, drotaverine, excipients of the studied products, or contraindications;
  • Intake of tricyclic antidepressants, eluxadoline, linaclotide, selective serotonin re-uptake inhibitors, rifaximin, lubriprostone within the last week before screening;
  • New prescription or any change in probiotic drug therapy (including change in the drug or dosage regimen) during the last month before screening;
  • History of intestinal obstruction, stricture, toxic megacolon, GI (gastro-intestinal) perforation, fecal impaction, gastric banding, bariatric surgery, adhesions, ischemic colitis, or impaired intestinal circulation (e.g. aorto-iliac disease);
  • History of major gastric, hepatic, pancreatic or intestinal surgery (appendectomy, hemorrhoidectomy, or polypectomy allowed as long as occurred \> 3 months prior to trial screening; uncomplicated laparoscopic or open cholecystectomy is allowed if no history of post-operative biliary tract pain and surgery occurred \> 3 months prior to screening);
  • Significant and progressive enlargement of the liver, spleen, lymph nodes; ascites; palpable tumor formation in the abdominal cavity / pelvis according to physical examination, hepatic cirrhosis;
  • Significant concomitant acute or chronic disease (cardiovascular, gastrointestinal, endocrine, immunological, metabolic, bronchopulmonary, urinary system) or any condition that, according to Investigator, is a contraindication for the patient to participate in the study if interference with the study performance;
  • Any inflammatory bowel disease (Crohn's disease, ulcerative colitis, any infection including bacterial, viral, protozoa, helminthosis);
  • Elevated fecal calprotectin level 1 month before or at screening which indicates the presence of inflammatory GIT disease;
  • Unexplained GI bleeding within 3 months prior to screening;
  • Confirmed diagnosis of bile acids malabsorption;
  • History of any malignant disease except basal cell carcinoma of skin and vesical cervix carcinoma in situ which were cured ≥ 5 years ago;
  • Confirmed diagnosis of celiac disease;
  • Confirmed hereditary galactose or fructose intolerance , total lactase deficiency, sucrase-isomaltose insufficiency, glucose-galactose malabsorption syndrome;
  • Diet changes (e.g, switching to fermented foods, a gluten-free diet) within the 1 months prior to screening;
  • +8 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Null Research Facilities

Moscow, Russia

Location

MeSH Terms

Conditions

Abdominal PainFlatulence

Interventions

mebeverineSimethicone

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsSigns and Symptoms, Digestive

Intervention Hierarchy (Ancestors)

DimethylpolysiloxanesSiliconesSiloxanesOrganosilicon CompoundsOrganic ChemicalsPolymersMacromolecular SubstancesBiomedical and Dental MaterialsManufactured MaterialsTechnology, Industry, and Agriculture

Results Point of Contact

Title
Suntje Sander-Struckmeier, PhD
Organization
Abbott

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
GT60
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 14, 2021

First Posted

January 3, 2022

Study Start

November 27, 2020

Primary Completion

May 18, 2021

Study Completion

May 18, 2021

Last Updated

September 16, 2025

Results First Posted

January 3, 2024

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share

Locations