Study of Variation Over Time in the Oral Microbiome
Public ClinicalTrials.gov record NCT02049398. 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.
Official title
Temporal Variation In The Oral Microbiome
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Background: \- Normal bacteria and other tiny organisms are found in healthy human mouths. These are called oral microbiota. It is unclear exactly how the oral microbiota may affect health. For example, if the microbial composition is abnormal, it may lead to mouth conditions like periodontitis. Researchers want to study how the microbiota changes over time. This can help them plan future disease studies. Objectives: \- To see if and how oral microbiota change over time. Eligibility: \- Forty adult employees of the National Cancer Institute Shady Grove. Design: * For 12 hours before the first visit, participants will not eat or drink (except water). They will not brush, floss, use mouthwash, chew gum, eat lozenges or candies, smoke cigarettes, or chew tobacco. * At the first visit, participants will: * Be given a saliva collector. They will spit 2 mL of saliva into it. * Fill out an online questionnaire. * Every 2 months, participants will visit the clinic and repeat visit 1. * The study ends after 1 year. Sponsoring Institute: National Cancer Institute
Study identification
- NCT ID
- NCT02049398
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 41 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 18 Years and older
- 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
- Jan 27, 2014
- Primary completion
- Sep 15, 2015
- Completion
- Dec 22, 2015
- Last update posted
- Nov 26, 2020
2014 – 2015
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Cancer Institute (NCI), 9000 Rockville Pike | 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 NCT02049398, 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 Nov 26, 2020 · Synced Sep 5, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02049398 live on ClinicalTrials.gov.