Impact of Bismuth Subsalicylate on Antimicrobial Use Among Adult Diarrhea Outpatients--Pakistan
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ClinicalTrials.gov Identifier: NCT02047162 |
Recruitment Status :
Completed
First Posted : January 28, 2014
Last Update Posted : January 30, 2019
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Condition or disease | Intervention/treatment | Phase |
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Diarrhea | Drug: Bismuth subsalicylate Other: Placebo | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 400 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Health Services Research |
Official Title: | Randomized, Double-blind, Placebo-controlled Trial of the Impact of Bismuth Subsalicylate on Antimicrobial Use Among Adult Diarrhea Outpatients in Pakistan |
Study Start Date : | May 2014 |
Actual Primary Completion Date : | September 2014 |
Actual Study Completion Date : | September 2014 |

Arm | Intervention/treatment |
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Experimental: Bismuth subsalicylate
Bismuth subsalicylate, 262 mg/chewable tablet, 2 tablets every hour as needed up to 16 tablets per 24 hours, for up to 48 hours.
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Drug: Bismuth subsalicylate
Other Name: Pepto-Bismol |
Placebo Comparator: Placebo
Placebo chewable tablets, 2 every hour as needed up to 16 tablets per 24 h, for up to 48 h.
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Other: Placebo
Chewable tablets identical to intervention tablets, but missing the bismuth subsalicylate |
- use of antimicrobial medications [ Time Frame: within 5 days of enrollment ]
- Patient's perceived need for antibiotics [ Time Frame: Within 48 h of enrollment ]
- additional care obtained for diarrhea [ Time Frame: within 48 h of enrollment ]Use of antidiarrheal medications, visits to other health professionals for diarrhea or complications of diarrhea, or expenditures on consultations and treatments for diarrheal illness
- Additional care obtained for diarrheal illness [ Time Frame: within 5 days of enrollment ]Use of antidiarrheal medications, visits to other health professionals for diarrhea or complications of diarrhea, or expenditures on consultations and treatments for diarrheal illness
- Disease severity and duration [ Time Frame: within 5 days of enrollment ]Time to first formed stool Number of stools during first 48 h of observation Duration of abdominal pain Duration of nausea Time to resolution of illness (any of the following symptoms: diarrhea, nausea, vomiting, abdominal pain) Severity of all symptoms of illness
- Patient experience with the study drug [ Time Frame: within 5 days of enrollment ]i. Satisfaction with resolution of symptoms ii. Satisfaction with esthetics of study medication iii. Adverse effects

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Ages Eligible for Study: | 15 Years to 65 Years (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Persons aged 15 - 65 years old
- Presenting with mild to moderate, non-bloody, acute diarrhea (≥3 loose stools/day for <3 days) to participating health care settings
- For whom the study physicians recommend antimicrobial treatment
Exclusion Criteria:
- Is pregnant
- Requires hospitalization
- Has signs or symptoms of septicemia
- Has a primary complaint of another acute illness
- Has a serious chronic illness
- Has an allergy to aspirin
- Has been exposed to antimicrobial or antidiarrheal medications within 72 hours of enrollment
- Previously enrolled in study

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02047162
Pakistan | |
HOPE | |
Karachi, Pakistan |
Principal Investigator: | Anna Bowen, MD, MPH | Centers for Disease Control and Prevention |
Responsible Party: | Anna Bowen, Medical Epidemiologist, Centers for Disease Control and Prevention |
ClinicalTrials.gov Identifier: | NCT02047162 |
Other Study ID Numbers: |
6469 |
First Posted: | January 28, 2014 Key Record Dates |
Last Update Posted: | January 30, 2019 |
Last Verified: | January 2019 |
diarrhea gastroenteritis antimicrobial drug resistance antimicrobial agents |
Pakistan ambulatory care bismuth |
Diarrhea Signs and Symptoms, Digestive Bismuth Bismuth subsalicylate |
Antacids Molecular Mechanisms of Pharmacological Action Gastrointestinal Agents Antidiarrheals |