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Safety and Efficacy of NVX-CoV2373 Covid-19 Vaccine.
Heath, Paul T; Galiza, Eva P; Baxter, David N; Boffito, Marta; Browne, Duncan; Burns, Fiona; Chadwick, David R; Clark, Rebecca; Cosgrove, Catherine; Galloway, James; Goodman, Anna L; Heer, Amardeep; Higham, Andrew; Iyengar, Shalini; Jamal, Arham; Jeanes, Christopher; Kalra, Philip A; Kyriakidou, Christina; McAuley, Daniel F; Meyrick, Agnieszka; Minassian, Angela M; Minton, Jane; Moore, Patrick; Munsoor, Imrozia; Nicholls, Helen; Osanlou, Orod; Packham, Jonathan; Pretswell, Carol H; San Francisco Ramos, Alberto; Saralaya, Dinesh; Sheridan, Ray P; Smith, Richard; Soiza, Roy L; Swift, Pauline A; Thomson, Emma C; Turner, Jeremy; Viljoen, Marianne E; Albert, Gary; Cho, Iksung; Dubovsky, Filip; Glenn, Greg; Rivers, Joy; Robertson, Andreana; Smith, Kathy; Toback, Seth.
  • Heath PT; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Galiza EP; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Baxter DN; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Boffito M; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Browne D; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Burns F; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Chadwick DR; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Clark R; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Cosgrove C; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Galloway J; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Goodman AL; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Heer A; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Higham A; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Iyengar S; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Jamal A; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Jeanes C; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Kalra PA; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Kyriakidou C; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • McAuley DF; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Meyrick A; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Minassian AM; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Minton J; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Moore P; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Munsoor I; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Nicholls H; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Osanlou O; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Packham J; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Pretswell CH; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • San Francisco Ramos A; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Saralaya D; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Sheridan RP; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Smith R; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Soiza RL; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Swift PA; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Thomson EC; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Turner J; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Viljoen ME; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Albert G; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Cho I; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Dubovsky F; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Glenn G; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Rivers J; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Robertson A; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Smith K; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
  • Toback S; From the Vaccine Institute, St. George's, University of London, and St. George's University Hospitals NHS Foundation Trust (P.T.H., E.P.G., C.C., A.S.F.R.), Chelsea, Westminster Hospital NHS Foundation Trust and Imperial College London (M.B.), the Institute for Global Health, University College Lond
N Engl J Med ; 385(13): 1172-1183, 2021 09 23.
Article in English | MEDLINE | ID: covidwho-1287849
ABSTRACT

BACKGROUND:

Early clinical data from studies of the NVX-CoV2373 vaccine (Novavax), a recombinant nanoparticle vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that contains the full-length spike glycoprotein of the prototype strain plus Matrix-M adjuvant, showed that the vaccine was safe and associated with a robust immune response in healthy adult participants. Additional data were needed regarding the efficacy, immunogenicity, and safety of this vaccine in a larger population.

METHODS:

In this phase 3, randomized, observer-blinded, placebo-controlled trial conducted at 33 sites in the United Kingdom, we assigned adults between the ages of 18 and 84 years in a 11 ratio to receive two intramuscular 5-µg doses of NVX-CoV2373 or placebo administered 21 days apart. The primary efficacy end point was virologically confirmed mild, moderate, or severe SARS-CoV-2 infection with an onset at least 7 days after the second injection in participants who were serologically negative at baseline.

RESULTS:

A total of 15,187 participants underwent randomization, and 14,039 were included in the per-protocol efficacy population. Of the participants, 27.9% were 65 years of age or older, and 44.6% had coexisting illnesses. Infections were reported in 10 participants in the vaccine group and in 96 in the placebo group, with a symptom onset of at least 7 days after the second injection, for a vaccine efficacy of 89.7% (95% confidence interval [CI], 80.2 to 94.6). No hospitalizations or deaths were reported among the 10 cases in the vaccine group. Five cases of severe infection were reported, all of which were in the placebo group. A post hoc analysis showed an efficacy of 86.3% (95% CI, 71.3 to 93.5) against the B.1.1.7 (or alpha) variant and 96.4% (95% CI, 73.8 to 99.5) against non-B.1.1.7 variants. Reactogenicity was generally mild and transient. The incidence of serious adverse events was low and similar in the two groups.

CONCLUSIONS:

A two-dose regimen of the NVX-CoV2373 vaccine administered to adult participants conferred 89.7% protection against SARS-CoV-2 infection and showed high efficacy against the B.1.1.7 variant. (Funded by Novavax; EudraCT number, 2020-004123-16.).
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Immunogenicity, Vaccine / COVID-19 Vaccines / COVID-19 Type of study: Experimental Studies / Observational study / Prognostic study / Randomized controlled trials Topics: Vaccines / Variants Limits: Adolescent / Adult / Aged / Humans / Middle aged / Young adult Language: English Journal: N Engl J Med Year: 2021 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Immunogenicity, Vaccine / COVID-19 Vaccines / COVID-19 Type of study: Experimental Studies / Observational study / Prognostic study / Randomized controlled trials Topics: Vaccines / Variants Limits: Adolescent / Adult / Aged / Humans / Middle aged / Young adult Language: English Journal: N Engl J Med Year: 2021 Document Type: Article