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Trial to Evaluate the Safety and Immunogenicity of an Anthrax Recombinant Protective Antigen Vaccine

This study has been completed.
Information provided by:
VaxGen Identifier:
First received: February 8, 2005
Last updated: June 23, 2005
Last verified: February 2005
The purpose of this phase 1 study is to evaluate the safety and immunogenicity of rPA102 vaccine, using anthrax vaccine adsorbed (AVA) as a comparator.

Condition Intervention Phase
Prevention of Anthrax Infection Biological: rPA102 Vaccine Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Prevention
Official Title: A Phase 1 Trial to Evaluate the Safety and Immunogenicity of an Anthrax Recombinant Protective Antigen Vaccine

Resource links provided by NLM:

Further study details as provided by VaxGen:

Primary Outcome Measures:
  • Safety and immunogenicity of 3 doses over 4 different dose ranges.

Estimated Enrollment: 100
Study Start Date: June 2003

Ages Eligible for Study:   18 Years to 40 Years   (Adult)
Sexes Eligible for Study:   All
Accepts 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 to 40 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 3 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.
  • Expected to be noncompliant with study visits or planning to move within 8 months.
  • Body mass index of >35 or <19.
  • Known allergy to aluminum hydroxide, formaldehyde, benzethonium chloride, latex, kanamycin, or any other aminoglycoside antibiotics (such as gentamycin).
  • 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 of study vaccination.
  • Received, or plans to receive, systemic immunosuppresive therapy, radiation therapy, or high-dose inhaled steroids within 30 days of study vaccination.
  • Use of systemic chemotherapy 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.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00103467

United States, Georgia
Emory University School of Medicine
Atlanta, Georgia, United States, 30322
United States, Maryland
Dept. of International Health - Johns Hopkins University Bloomberg School of Public Health
Baltimore, Maryland, United States, 21205
United States, Missouri
St. Louis University - SoLutions/SLUtest
St. Louis, Missouri, United States, 63104
United States, Texas
Baylor College of Medicine
Houston, Texas, United States, 77030
Sponsors and Collaborators
  More Information Identifier: NCT00103467     History of Changes
Other Study ID Numbers: VAX005
Study First Received: February 8, 2005
Last Updated: June 23, 2005

Additional relevant MeSH terms:
Bacillaceae Infections
Gram-Positive Bacterial Infections
Bacterial Infections
Immunologic Factors
Physiological Effects of Drugs processed this record on August 18, 2017