Safety and Efficacy of Two Tetanus-Diphtheria Vaccines for a Donor Hyper Immunization Program
Public ClinicalTrials.gov record NCT02673255. 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.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Many plasma donation centers have Tetanus immunization programs that are implemented in order to collect plasma with high levels of tetanus antibodies. The immunization program requires participants to receive multiple tetanus vaccinations over a period of time with the goal of hyper-immunizing them to tetanus. Their antibody-rich plasma is then used to manufacture a tetanus immunoglobulin product which helps with the prophylaxis and treatment of tetanus disease. The Tetanus vaccine previously used for these programs is no longer being manufactured. Therefore, we must evaluate the safety and efficacy of a different vaccine when used for this purpose. The only other FDA approved Tetanus vaccines currently available for adults in the US are combination vaccines that also immunize against Diphtheria and/or Pertussis. In this study, the investigators will evaluate two vaccines that are combinations of Tetanus and Diphtheria (Td). Investigators will not evaluate any vaccines containing Pertussis antigen. The vaccines to be evaluated are manufactured by MassBiologics and Sanofi Pasteur (Tenivac). The package insert for these vaccines indicates they should be administered to previously vaccinated people once every 10 years. However, this study will evaluate whether they are safe and effective for dosing every 90 days. The investigators hypothesize that at least 25% of study subjects will have a positive response to at least one of the five planned doses. Each vaccine will be evaluated separately.
Study identification
- NCT ID
- NCT02673255
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 300 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 69 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
- Aug 21, 2016
- Primary completion
- Jul 28, 2019
- Completion
- Jul 28, 2019
- Last update posted
- Jul 19, 2021
2016 – 2019
United States locations
- U.S. sites
- 4
- U.S. states
- 4
- U.S. cities
- 4
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Biomat Bellflower | Bellflower | California | 90706 | — |
| Biomat Lincoln | Lincoln | Nebraska | 68510 | — |
| Biomat Clarksville | Clarksville | Tennessee | 37042 | — |
| Biomat Salt Lake City 1 | Salt Lake City | Utah | 84116 | — |
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 NCT02673255, 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 19, 2021 · Synced Sep 4, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02673255 live on ClinicalTrials.gov.