Comparison of Immune Response to Booster Vaccines in Blood Transplant Patients and Healthy Volunteers
Public ClinicalTrials.gov record NCT00005907. 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
Evaluation of Hepatitis B Surface Antigen-Specific and Tetanus Toxoid-Specific Lymphocytes
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study will compare the immune system response to booster vaccines for tetanus/diphtheria and hepatitis B in healthy volunteers with that of patients who have had a blood transplant. (A blood transplant is an infusion of donated stem cells-i.e., cells that mature into white blood cells, red blood cells and platelets). The study will also look at how age of the blood cell donor and recipient, the type of blood transplant, the amount of certain types of white cells in donor blood, and other variables may influence the vaccine response among the transplant patients. This study includes normal volunteers and patients who have had a blood transplant. Healthy volunteers between the ages of 18 and 60 who have previously been vaccinated with the hepatitis B or tetanus/diphtheria vaccine and have not had hepatitis B may be eligible for this study. Patients enrolled in a blood cell transplant study at NIH who are between 5 and 60 years old, have been vaccinated against tetanus/diphtheria, and have not had hepatitis B may be eligible. Candidates will be screened with a medical history and blood tests. Those enrolled in the study will have about 2 tablespoons of blood drawn before vaccination with a standard tetanus/diphtheria booster shot. Volunteers who have previously been vaccinated with the hepatitis B vaccine and all blood transplant patients will also receive a hepatitis B vaccination. Participants will have blood drawn (from 1 to 5 tablespoons) up to once a week after vaccination for no more than 8 weeks to evaluate the immune response to vaccination.
Study identification
- NCT ID
- NCT00005907
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 55 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- Not listed
- 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
- May 31, 2000
- Primary completion
- Not listed
- Completion
- Apr 30, 2002
- Last update posted
- Mar 3, 2008
2000 – 2002
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institute of Allergy and Infectious Diseases (NIAID) | 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 NCT00005907, 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 Mar 3, 2008 · Synced Sep 6, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00005907 live on ClinicalTrials.gov.