Effects of Stem Cell Transplantation on Bacteria in the Mouth
Public ClinicalTrials.gov record NCT00476450. 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
Effects of Peripheral Blood Stem Cell Transplantation on the Microbial Flora of the Oral Cavity
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study will examine bacteria in patients mouths at different times during stem cell transplantation and recovery. Drugs patients receive as part of the conditioning process for a stem cell transplant increase their risk of infection. There might be a link between the bacteria in the mouth and the bacteria that can cause infections. Knowing the changes in bacteria might help researchers determine the best method to prevent infections. Patients 18 years of age and older who are scheduled to receive a stem cell transplant may be eligible for this study. Participants undergo the following procedures: Review of medical records Interview about their oral care Oral examination Collection of oral specimens just before the stem cell transplant, immediately after the transplant, and 3 weeks after the transplant. The specimens are obtained as follows: * \<TAB\>-About one-fourth teaspoon of saliva is collected with a suction device similar to that used in a dental office. * \<TAB\>-Plaque from the surface of a tooth is collected with a plastic toothpick. * \<TAB\>-Skin cells from the inside of the cheek and the surface of the tongue are collected with a small soft brush. * \<TAB\>-If a tube is inserted into the patient s lungs to assist breathing and the patient is admitted to the intensive care unit, a specimen from the lungs is collected. Patients are followed for 100 days after their transplant. Additional oral specimens are obtained from those who develop signs and symptoms of respiratory infection.
Study identification
- NCT ID
- NCT00476450
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 50 participants
Conditions and interventions
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
- May 15, 2007
- Primary completion
- Not listed
- Completion
- Mar 6, 2016
- Last update posted
- Oct 5, 2017
2007 – 2016
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, 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 NCT00476450, 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 Oct 5, 2017 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00476450 live on ClinicalTrials.gov.