- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01822977
The Impact of Proton Pump Inhibitors on the Fecal Microbiome
The Impact of Proton Pump Inhibitors on the Fecal Microbiome and Their Relationship to Clostridium Difficile Infection
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
-
-
Arizona
-
Scottsdale, Arizona, United States, 85259
- Mayo Clinic in Arizona
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Table 1. Inclusion Criteria for Healthy Volunteers:
1. Healthy individuals without chronic gastrointestinal problems or using antisecretory medications.
Table 2. Inclusion Criteria for Clostridium difficile infection subjects:
1. Newly diagnosed first episode of CDI prior to being treated.
Table 3. Exclusion Criteria for Healthy Subjects:
- Prior gastrointestinal surgery that has altered the anatomy of the esophagus, stomach, or small/large intestine including appendectomy and cholecystectomy.
- Chronic daily use of any medications that could alter gastrointestinal secretory or motor function (see Table 2).
- Gastrointestinal, cardiovascular, endocrine, renal, or other chronic disease likely to affect gastrointestinal motility (e.g., uncontrolled diabetes mellitus).
- Females of childbearing age who are not practicing at least one form of birth control at least one month prior to starting the PPI or are pregnant or lactating (a pregnancy test will be performed on female subjects prior to PPI use).
- Significant untreated psychiatric disease.
Table 4. Prohibited Medications:
- Antibiotics within 2 months of the stool sample collection.
- Probiotics (e.g., Florastor, Align, Flora-Q, VSL#3, lactobacillus, bifidobacterium) within 2 weeks of the stool sample collection.
- Fiber supplements (e.g., Metamucil, Citrucel, Benefiber), unless maintained on a stable dose for the last 3 months.
- Chronic use of medications that alter gastric pH: proton pump inhibitors (e.g., omeprazole, lansoprazole, esomeprazole, pantoprazole, rabeprazole, dexlansoprazole) and histamine2 receptor antagonists (e.g., cimetidine, famotidine, ranitidine).
- Chronic use of medications that affect gastrointestinal motility and/or transit including prokinetic agents (e.g., metoclopramide (Reglan), tegaserod (Zelnorm), domperidone (Motilium), erythromycin), narcotic analgesic agents (e.g., methadone, fentanyl, oxycodone, codeine, morphine, hydromorphone), laxatives including mineral oil, anticholinergic agents (e.g., Bentyl, Levsin), and antidiarrheal agents (e.g., Kaopectate (donnagel), Pepto-Bismol (bismuth subsalicylate), Imodium (loperamide), Lomotil (atropine with diphenoxylate), codeine, tincture of opium).
Study Plan
How is the study designed?
Design Details
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
No Intervention: Proton pump inhibitor
We will recruit 10 healthy adult individuals and 5 adult patients with an initial episode of CDI cared for at Mayo Clinic in Arizona. A baseline stool sample will be collected from the healthy individuals. They will then be given a PPI, omeprazole 20 mg, to be taken once (n=5) or twice (n=5) daily for 1 month. Stool samples will be collected after 1 week and again after 1 month. A final stool sample will be collected 1 month after stopping the omeprazole. A stool sample will be collected from the CDI subjects before treatment of the infection and again 2 months after treatment to avoid enrolling those at risk for relapse (which most commonly occurs during the first 2 months after treatment). |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Changes in fecal microbial diversity due to PPI therapy
Time Frame: 2 months
|
2 months
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Changes in fecal microbial diversity due to CDI
Time Frame: 2 months
|
2 months
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: John Di Baise, MD, Mayo Clinic
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 13-000180
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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