View clinical trials related to Bacillus Anthracis (Anthrax).
Filter by:A Phase IV, randomized, multicenter trial to assess the immunogenicity and safety of BioThrax® in varying dose regimens with the primary objective of obtaining information on possible dose-sparing strategies in the event of a major biothreat.
This is a dose ranging study comparing different vaccine schedules of rPA vaccine, for Anthrax, to the licensed dose of AVA, another Anthrax vaccine. Safety and the capability to induce an immune response will be evaluated.
The purpose of this study is to evaluate the safety and pharmacokinetics (how long a drug stays in the bloodstream and how high the levels of the drug are at different times) of ETI-204 following intravenous (IV-into a vein) injections, and to evaluate the effects that ETI-204 may have on the pharmacokinetics of oral (by mouth) ciprofloxacin, an antibiotic approved by the U.S. Food and Drug Administration (FDA). ETI-204 is an experimental drug (not approved by the FDA) intended to protect against anthrax (a bacterial infection). Approximately 36 male and female healthy volunteers ages 18 to 50 will be in this study. Participation in this study may last up to eight weeks. Volunteers will have a single IV dose of the ETI-204 study drug or placebo (inactive substance, and some participants will also receive ciprofloxacin. They will stay in the Clinical Pharmacology Unit at least 36 hours after the dose.
Objectives are: To confirm the safety and tolerability of 2-dose regimens of 100 g rPA vaccines (3 products) administered by the intramuscular (IM) route to healthy adults.To describe the immunologic responses to 2-dose regimens of 3 rPA vaccines and to compare the responses to those following administration of Anthrax Vaccine Adsorbed (AVA or BioThraxTM), the currently available vaccine. The primary immunologic outcome is the proportion of volunteers in each group that mounts an antibody response (defined as a 4-fold or greater increase from pre-vaccination to post-vaccination of anti-rPA IgG antibody with a minimal concentration of 10 µg/ml as measured by ELISA). Secondary outcomes are time to peak response and GMC of anti-PA antibody at peak for each group. In addition, the following immunologic assays will be performed: toxin neutralization assay, oral fluid ELISA, antibody avidity, IgG subclasses, and B-cell memory,T-cell memory and effector subpopulations.