GLS-5310 Vaccine in Healthy Volunteers for the Prevention of SARS-CoV-2 (COVID-19)

This Phase I, randomized, placebo-controlled, dose-ranging, single-blind study will assess the safety, tolerability, and immunogenicity of GLS-5310 DNA vaccine administered intradermally (ID) with or without concomitant intranasal (IN) administration of GLS-5310. Vaccine delivered ID will either be performed by Mantoux injection and followed by suction applied to the skin surface using the Gene-Derm device or Mantous injection alone without applied suction. Vaccine delivered IN will be administered using the MAD300 atomizer.