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Trial of rPA-102 Vaccine in Healthy Adult Volunteers

A Phase 2 Multi-Center, Randomized Dose-Finding Trial of rPA-102 Vaccine in Healthy Adult Volunteers

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00100724
Enrollment
480
Registered
2005-01-06
Start date
2004-04-30
Completion date
2005-07-31
Last updated
2006-01-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anthrax

Keywords

Anthrax, rPA102, vaccine

Brief summary

The purpose of this study is to assess the safety and immunogenicity of rPA102 vaccine given intramuscularly at 0 and 4 weeks over 2 dose ranges and 4 adjuvant levels.

Interventions

BIOLOGICALrPA102

Sponsors

National Institutes of Health (NIH)
CollaboratorNIH
National Institute of Allergy and Infectious Diseases (NIAID)
CollaboratorNIH
Centers for Disease Control and Prevention
CollaboratorFED
VaxGen
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Able to understand the study and give written informed consent. A signed informed consent must be in place before the initiation of any study interventions. * Healthy male or female aged 18-55 years old (inclusive) without significant physical or clinical laboratory abnormalities. * Two intact upper arms with sufficient intramuscular (IM) tissue in the deltoid region for vaccine administration. * For females, negative serum pregnancy test at screening and agreement to use adequate birth control during the first 2 months of the study. * Willingness and ability to return for all follow-up visits and blood draws for the duration of the study. * Willingness to complete the Volunteer Diary and to report concomitant medications and adverse events (AEs) to the study site monitors during the study period.

Exclusion criteria

* Prior history of, or known exposure to any form of B. anthracis or any anthrax immunization. * Member of the Armed Services (Active Duty or Reserve) since 1990, with history of previous anthrax vaccination. * Employment in an industry involved in contact with ruminant animals, veterinary sciences, or other exposure to B. anthracis, or emergency first responders. * Expected to be noncompliant with study visits or planning to move within 12 months. * Body mass index of \>35 or \<19. * Known allergy to aluminum hydroxide, kanamycin, or any other aminoglycoside antibiotics (such as gentamicin). * Pregnancy (positive urine pregnancy test within 24 hours prior to vaccination), or lactation. * HIV positive (by history or screening ELISA). * Hepatitis B or C positive (by history or screening HBsAg/anti-HCV ELISA). * Active or past internal organ, hematologic malignancy, or metastatic cutaneous malignancy. * History of, or current autoimmune disease, including but not limited to systemic lupus erythematosus, scleroderma, and polyarteritis. * Immunodeficiency or unstable medical condition as determined by baseline medical history, physical exam, and laboratory assessment. * Received or plans to receive licensed live vaccines within 30 days of study vaccination. * Received or plans to receive licensed killed vaccines within 14 days of study vaccination. * Received or plans to receive immunoglobulin or other blood products within 60 days of study vaccination. * Received or plans to receive experimental drugs/vaccines within 30 days prior to, and for the duration of the study. * Received or plans to receive systemic immunosuppressive therapy, radiation therapy, or high-dose inhaled steroids within 30 days of study vaccination. * Use of systemic chemotheraphy within 5 years prior to study. * History of Guillain-Barre Syndrome. In addition to the conditions listed above, the following may qualify as a reason to exclude a volunteer from the study: fever along with moderate or serious illness within 3 days of vaccination or any condition that, in the opinion of the investigator, would render vaccination unsafe or would interfere with the study evaluations. Pending resolution of these symptoms, a volunteer may be reconsidered for vaccination.

Design outcomes

Primary

MeasureTime frame
Safety and immune response to vaccine.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026