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A Comparison of Three Medications to Treat Diarrhea in Adults.

A Randomized, Parallel Group Comparison of Loperamide/Simeticone Caplet, Loperamide/Simeticone Chewable Tablet (IMODIUM® PLUS) and a Probiotic (Saccharomyces Boulardii) in the Treatment of Acute Diarrhea in Adults

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00807326
Enrollment
415
Registered
2008-12-11
Start date
2008-11-30
Completion date
2009-11-30
Last updated
2012-07-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diarrhea

Keywords

Antidiarrheals

Brief summary

A comparison of three medications to treat diarrhea in adults.

Detailed description

This single (investigator) blind, randomized, 3-arm, parallel-group study design was selected to show non-inferiority of loperamide/simeticone caplets compared to chewable tablets in a heterogeneous subject population aiming at validity of results and reducing bias. The study will also compare the loperamide/simeticone combinations versus a probiotic (Saccharomyces boulardii) in the treatment of acute diarrhea in adults. Probiotics have been used for acute infectious diarrhea to reduce the duration and severity of the illness.

Interventions

DRUGLoperamide/simeticone 2 mg/125 mg caplets

Oral, 2 caplets taken initially at investigator site followed by one caplet after each unformed stool, maximum 4 caplets in a 24 hour period for a maximum of 48 hours (per product label)

DRUGLoperamide/simeticone 2 mg/125 mg chewable tablets

Oral, 2 chewable tablets taken initially at the site followed by one chewable tablet after each unformed stool, maximum 4 chewable tablets in a 24 hour period for a maximum of 48 hours (per product label)

DRUGProbiotic Saccharomyces boulardii 250 mg capsules

Oral, 1 capsule twice a day, maximum 2 capsules in a 24 hour period for a maximum of 5 days (per product label)

Sponsors

McNeil AB
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or female at least 18 years of age * Acute diarrhea illness with symptoms onset within 48 hours of study entry * Minimum of 3 unformed stools in 24 hours before study entry * Most recent stool is unformed * Abdominal discomfort/wind (intensity mild to severe) within 4 hours of study entry * Women of childbearing potential must have a negative pregnancy test at screening * Willing to adhere to the prohibitions and restrictions specified in this protocol * Subjects must have signed an informed consent document indicating that they understand the purpose of and procedures required for the study and are willing to participate in the study

Exclusion criteria

* Requiring hospital admission, parenteral hydration or antibiotic therapy Axillary temperature \>38.2°C or oral temperature \>38.6°C * History or clinical evidence of gross blood or pus in stool in current illness * Signs or symptoms of orthostatic hypotension * Unable to take medication and fluids by mouth * History of chronic gastrointestinal disease, hepatic or renal insufficiency, or other significant medical condition that could be aggravated by untreated acute diarrhea * Immunodeficiency (e.g. those with acquired immunodeficiency syndrome \[AIDS\] or known human immunodeficiency virus \[HIV\] infection, or undergoing chemotherapy or radiotherapy) * Intake of antibiotics, oral antifungals, quinidine or ritonavir within 7 days, antidiarrhoeal, promotility drugs (e.g., metoclopramide, domperidone), antiflatulents (e.g., simeticone, activated charcoal) or probiotics or bismuth salts within 48 hours, or any analgesic within 6 hours prior to study entry Hypersensitivity to loperamide, yeast, or any component of study formulations * Pregnant or breast-feeding * Unable to comply with the protocol requirements and schedule * Any condition that, in the opinion of the investigator, would compromise the well-being of the subject or the study * Use of opiates (as 'recreational' drugs and as painkillers)

Design outcomes

Primary

MeasureTime frame
Number of unformed stools0-24 hours

Secondary

MeasureTime frame
Time to last unformed stoolThroughout duration of the study
Time to complete relief of abdominal discomfortThroughout duration of the study
Time to complete relief of diarrheaThroughout duration of the study
Proportion of subjects with complete relief of diarrhea4, 8, 12, 24 and 48 hours
Gas-related abdominal discomfort ratings - change from baseline at subsequent time pointsThroughout duration of the study
Proportions of subjects with complete well-beingat 12, 24 and 48 hours.
Number of unformed stools0-12, 12-24, 24-36, 36-48 hours
Number of loperamide/simeticone 2 mg/125 mg caplets or chewable tablets or probiotic (Saccharomyces boulardii) 250 mg capsules used during the studyThroughout duration of the study
Frequency of complete well-being following diarrhea illnessat 7 days follow up
Stool frequencyat 7 days follow up
Frequency of diarrhea relapseat 7 days follow up
Safety Assessments will consist of monitoring and recording all non-serious Adverse Events (AEs) and Serious Adverse Events (SAEs), their frequency, severity, seriousness, and relationship to the investigational product.throughout duration of the study (+ 30 days for spontaneously-reported SAEs)
Subject's evaluation of treatment effectiveness for overall illness relief, diarrhea relief and abdominal discomfort reliefThroughout duration of the study

Countries

India, Mexico

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 4, 2026