Nontypeable H. Influenzae in Healthy Adults
Public ClinicalTrials.gov record NCT00905385. 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
Phase I/II Single-Site, Randomized and Double-Blinded Trial to Further Characterize the HCD50, HCD90 and Transmissibility of Nontypeable Haemophilus Influenzae in a Human Colonization Model in Healthy Adults
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study is to learn more about the safety of Haemophilus (H.) influenzae, its ability to produce adverse reactions and to live in the nose and throat. The nose and throat of healthy adults will be populated with a specific type of H. influenzae Nontypeable Haemophilus influenzae (NTHi) 2019 Streptomycin Resistant (StrR) number 1. Researchers will study whether the germ settles in the nose and throat, whether it causes symptoms after it has been placed in the nose, how long the germs last in the nose and throat, and whether the body tries to produce a permanent defense to the germ. Volunteers will receive a lower dose (3,200 germs) or a higher dose (32,000 germs). Active participation will last about 28 days, including a 3 night hospital stay, additional follow-up visits, followed by a 6 month follow-up phone call. Study procedures will include blood samples, saliva samples, several nose washes and throat swabs.
Study identification
- NCT ID
- NCT00905385
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Enrollment
- 15 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 54 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 31, 2009
- Primary completion
- Feb 28, 2011
- Completion
- Feb 28, 2011
- Last update posted
- Apr 10, 2013
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 Iowa - Infectious Disease Clinic | Iowa City | Iowa | 52242-1009 | — |
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 NCT00905385, 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 Apr 10, 2013 · Synced Sep 8, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00905385 live on ClinicalTrials.gov.