• Final Analysis of Efficacy and Safety of Single-Dose Ad26.COV2.S.

      Sadoff, Jerald; Gray, Glenda; Vandebosch, An; Cárdenas, Vicky; Shukarev, Georgi; Grinsztejn, Beatriz; Goepfert, Paul A; Truyers, Carla; Van Dromme, Ilse; Spiessens, Bart; et al. (Massachusetts Medical Society, 2022-02-09)
      We conducted the final analysis in the double-blind phase of our multinational, randomized, placebo-controlled trial, in which adults were assigned in a 1:1 ratio to receive single-dose Ad26.COV2.S (5×1010 viral particles) or placebo. The primary end points were vaccine efficacy against moderate to severe-critical Covid-19 with onset at least 14 days after administration and at least 28 days after administration in the per-protocol population. Safety and key secondary and exploratory end points were also assessed.