A First in Human Study to Evaluate the Safety and Immunogenicity of RBM-001 in Healthy Adult Volunteers

This was a Phase 1, randomized, placebo-controlled, double-blind study to evaluate the safety, tolerability, and immunogenicity of RBM-001 in healthy adults. Participants were randomized to receive RBM-001 at 5 µg or 25 µg, or placebo, administered by intramuscular injection. Two vaccinations were planned 21 days apart. Safety and tolerability were assessed through solicited and unsolicited adverse events, adverse events of special interest, medically attended adverse events, new-onset chronic medical conditions, serious adverse events, clinical laboratory assessments, vital signs, electrocardiograms, and physical examinations. Immunogenicity assessments included antigen-specific antibody responses, SARS-CoV-2-specific T-cell responses, and cytokine responses.