The purpose of the study is to determine whether ASP0113 (a CMV deoxyribonucleic acid \[DNA\] vaccine) can be detected in plasma after intramuscular (IM) injections, and to determine whether CMV-seropositive healthy volunteers, CMV-seronegative healthy volunteers, CMV-seronegative dialysis patients mount an immune response to the CMV proteins produced by the vaccine after repeated ASP0113 IM injection.
Part 1 is open-label with no randomization, and Part 2 is single-blind and randomized. The purpose of Part 1 is to obtain pilot pharmacokinetic data so as to optimize pharmacokinetic sample collection times in Part 2.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
48
intramuscular injection
intramuscular injection
Site US10009
Los Angeles, California, United States
Site US10003
Orlando, Florida, United States
Site US10001
Baltimore, Maryland, United States
Site US10004
Houston, Texas, United States
ASP0113 plasmids pharmacokinetics in plasma: AUC (Part 1 and Part 2)
Area under the curve (AUC)
Time frame: Day 1, 2, 3, 4, 5, 6, 7, 10, 14, 21 and 28 for Part 1; Day 1, 2, 3, 4, 5, 6, 7 and weeks 5, 9 and 25 for Part 2)
ASP0113 plasmids pharmacokinetics in plasma: Cmax (Part 1 and Part 2)
Maximum Concentration (Cmax)
Time frame: Day 1, 2, 3, 4, 5, 6, 7, 10, 14, 21 and 28 for Part 1; Day 1, 2, 3, 4, 5, 6, 7 and weeks 5, 9 and 25 for Part 2
ASP0113 plasmids pharmacokinetics in plasma: Tmax (Part 1 and Part 2)
Time to maximum concentration (Tmax)
Time frame: Day 1, 2, 3, 4, 5, 6, 7, 10, 14, 21 and 28 for Part 1; Day 1, 2, 3, 4, 5, 6, 7 and weeks 5, 9 and 25 for Part 2
ASP0113 plasmids pharmacokinetics in plasma: Apparent clearance (Part 1 and Part 2)
Time frame: Day 1, 2, 3, 4, 5, 6, 7, 10, 14, 21 and 28 for Part 1; Day 1, 2, 3, 4, 5, 6, 7 and weeks 5, 9 and 25 for Part 2
ASP0113 plasmids pharmacokinetics in plasma: apparent volume of distribution (Part 1 and Part 2)
Time frame: Day 1, 2, 3, 4, 5, 6, 7, 10, 14, 21 and 28 for Part 1; Day 1, 2, 3, 4, 5, 6, 7 and weeks 5, 9 and 25 for Part 2
ASP0113 plasmids pharmacokinetics in plasma: half-life (Part 1 and Part 2)
Time frame: Day 1, 2, 3, 4, 5, 6, 7, 10, 14, 21 and 28 for Part 1; Day 1, 2, 3, 4, 5, 6, 7 and weeks 5, 9 and 25 for Part 2
pp65 protein in white blood cells (WBCs) using pp65 antigenemia assay (Part 1 and Part 2)
Time frame: Day 1, 2, 3, 4, 5, 6, 7, 10, 14, 21 , 28 for Part 1; Day 1, 10, 14, weeks 5, 7, 9, 11, 25 and 27 for Part 2
Immunogenicity: Relative units/ml of anti-gB antibodies in serum as detected by enzyme-linked immunosorbent assay (ELISA) (Part 2)
Time frame: Day 1 and weeks 3, 5, 7, 9, 11, 25 and 27 (Part 2)
Immunogenicity: Number of pp65-specific Interferon (IFN)-gamma producing T-cells in isolated peripheral blood mononuclear cells (PBMCs) upon pp65 peptide stimulation as assayed by flow cytometry with intracellular cytokine staining (ICS) (Part 2)
Time frame: Day 1 and weeks 3, 5, 7, 9, 11, 25 and 27 (Part 2)
Immunogenicity: Amount of IFN-gamma produced by CMV peptide-stimulated T-cells in whole blood using the QuantiFERON T-cell CMV assay (Part 2)
Time frame: Day 1 and weeks 3, 5, 7, 9, 11, 25 and 27 (Part 2)
Safety assessed by clinical labs, vital signs, and adverse events including local and systemic reactogenicity
Time frame: Up to Day 28 (Part 1), Up to 7 months (Part 2)
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