Phase I data on immune responses induced by Inovio Inc.'s COVID-19 DNA vaccine candidate, INO-4800, showed it induced neutralizing antibodies and T-cell responses against all spike protein variants tested in a phase I study, including those first detected in the U.K., South Africa and Brazil. A preliminary report on the analysis, published on bioRxiv, preceded the reporting of phase II data on the candidate expected later this quarter as well as a potential move to phase III testing, pending resolution of a partial clinical hold on the study first announced in September 2020.