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Completed Phase 1 Interventional Accepts healthy volunteers

Longitudinal Study of the Human Intestinal Microbiome

ClinicalTrials.gov ID: NCT00832286

Public ClinicalTrials.gov record NCT00832286. 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.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 12:49 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Longitudinal Study of the Human Intestinal Microbiome Before and After Antibiotic Administration

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to identify the human intestinal microbiota (microbes that live inside and on human bodies) in healthy adults over a 6-month period and to study the effect of an antibiotic on the intestinal microbiota. Participants will include up to 60 healthy adult subjects, ages 18-45 years, from the Baltimore and University of Maryland communities. Study procedures will include providing multiple stool samples throughout the study. Participants will take a licensed antibiotic, Ciprofloxacin, for 3 days. Participants may be involved in study related procedures for up to 7 months.

Study identification

NCT ID
NCT00832286
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1
Enrollment
60 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years to 45 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jul 22, 2009
Primary completion
Sep 23, 2010
Completion
Jan 10, 2011
Last update posted
Jul 28, 2021

2009 – 2011

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
University of Maryland School of Medicine - Center for Vaccine Development - Baltimore Baltimore Maryland 21201-1509

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 NCT00832286, 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 Jul 28, 2021 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00832286 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →