Longitudinal Changes in the Oral and Gut Microbiome of Individuals With Alcohol Dependence
Public ClinicalTrials.gov record NCT02911077. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Background: Many bacteria live in the gut. The gut is the tube that moves food from the mouth through the stomach to the intestines. Heavy alcohol use disturbs these bacteria. There is evidence that the bacteria in the gut may affect anxiety and depression. Researchers want to learn more about these bacteria in order to better treat diseases such as alcohol dependence. Objective: To identify the different bacteria that live in the mouth and gut. Also, to learn if these bacteria change as a person goes through alcohol detoxification. Eligibility: People ages 18 and older who: * Enrolled in screening protocol 14-AA-0181 * Are going through detoxification treatment at the Clinical Center Design: Participants will have physical exams. Participants will answer questions about: * Anxiety and depression * Alcohol use * Sleep * Abdominal and oral health * Diet Participants will keep a regular record of their diet. Participants will have breath alcohol analysis 4 times per day. Participants will provide stool and oral specimens at most once a day for the first week. Then, they will provide them once a week while they are at the Clinical Center. * For the oral specimen: A small brush rubs the tongue. They may not eat, drink, or perform oral care within 2 hours of collection. * For the stool specimen: They will receive a container that fits in the toilet. They will let the nurse know right away when the sample is ready. Participants will have a dental visit. This consists of an oral exam and oral health assessment. The dentist may recommend a cleaning or dental X-rays.
Study identification
- NCT ID
- NCT02911077
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 23 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 18 Years to 99 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 26, 2016
- Primary completion
- Aug 28, 2017
- Completion
- Aug 28, 2017
- Last update posted
- Aug 16, 2026
2016 – 2017
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institutes of Health Clinical Center | Bethesda | Maryland | 20892 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT02911077, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Aug 16, 2026 · Synced Sep 4, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02911077 live on ClinicalTrials.gov.