Safety and immunogenicity of the ChAdOx1 nCoV-19 vaccine against SARS-CoV-2: a preliminary report of a phase 1/2, single-blind, randomised controlled trial
P M Folegatti,Katie J. Ewer,Parvinder K. Aley,Brian Angus,Stephan Becker,Sandra Belij-Rammerstorfer,D Bellamy,S Bibi,M Bittaye,Elizabeth A. Clutterbuck,Christina Dold,Saul N. Faust,Adam Finn,Amy Flaxman,Bassam Hallis,Paul T. Heath,D Jenkin,Rajeka Lazarus,R Makinson,Angela M. Minassian,Katrina M Pollock,M N Ramasamy,Hannah Robinson,Matthew D. Snape,R Tarrant,Merryn Voysey,Catherine M. Green,Alexander D. Douglas,Hill Avs.,Teresa Lambe,Sarah C. Gilbert,Andrew J. Pollard +31 more
TLDR
A phase 1/2, single-blind, randomized controlled trial in five trial sites in the UK of a chimpanzee adenovirus-vectored vaccine (ChAdOx1 nCoV-19) expressing the SARS-CoV2 spike protein compared with a meningococcal conjugate vaccine (MenACWY) as control was conducted.About:
This article is published in The Lancet.The article was published on 2020-08-15 and is currently open access. It has received 1899 citations till now. The article focuses on the topics: Reactogenicity & Viral Vaccine.read more
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Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK.
Merryn Voysey,Clemens Sac.,Shabir A. Madhi,Lily Yin Weckx,P M Folegatti,Parvinder K. Aley,Brian Angus,Vicky L. Baillie,Shaun Barnabas,Q E Bhorat,S Bibi,Carmen Briner,P Cicconi,Andrea M. Collins,R Colin-Jones,Clare L. Cutland,Thomas C. Darton,Keertan Dheda,Duncan Cja.,Emary Krw.,Katie J. Ewer,Lee Fairlie,Saul N. Faust,Shuo Feng,Daniela M. Ferreira,Adam Finn,Anna Goodman,Catherine M. Green,Christopher A Green,Paul T. Heath,Christopher Hill,Helen Hill,Ian Hirsch,Hodgson Shc.,Allen Izu,S Jackson,D Jenkin,Joe Ccd.,S Kerridge,Anthonet Koen,Gaurav Kwatra,Rajeka Lazarus,Alison M. Lawrie,A Lelliott,Vincenzo Libri,Patrick J. Lillie,R Mallory,Mendes Ava.,Eveline Pipolo Milan,Angela M. Minassian,Alastair McGregor,Hazel Morrison,Y Mujadidi,Amit J Nana,P J O’Reilly,S D Padayachee,A Pittella,E Plested,Katrina M Pollock,M N Ramasamy,S Rhead,Alexandre Vargas Schwarzbold,Nisha Singh,Andrew Smith,R Song,Matthew D. Snape,Eduardo Sprinz,Rebecca K. Sutherland,R Tarrant,E. Thomson,M E Török,Mark Toshner,Turner Dpj.,Johan Vekemans,Tonya Villafana,Watson Mee.,C J Williams,Alexander D. Douglas,Hill Avs.,Teresa Lambe,Sarah C. Gilbert,Andrew J. Pollard +81 more
TL;DR: ChAdOx1 nCoV-19 has an acceptable safety profile and has been found to be efficacious against symptomatic COVID-19 in this interim analysis of ongoing clinical trials.
Journal ArticleDOI
Characteristics of SARS-CoV-2 and COVID-19
TL;DR: The basic virology of SARS-CoV-2 is described, including genomic characteristics and receptor use, highlighting its key difference from previously known coronaviruses.
Journal ArticleDOI
Neutralizing antibody levels are highly predictive of immune protection from symptomatic SARS-CoV-2 infection.
David S. Khoury,Deborah Cromer,Arnold Reynaldi,Timothy E. Schlub,Timothy E. Schlub,Adam K. Wheatley,Jennifer A Juno,Kanta Subbarao,Stephen J. Kent,Stephen J. Kent,Stephen J. Kent,James A. Triccas,Miles P. Davenport +12 more
TL;DR: It is shown that neutralization level is highly predictive of immune protection, and an evidence-based model of SARS-CoV-2 immune protection that will assist in developing vaccine strategies to control the future trajectory of the pandemic is provided.
Journal ArticleDOI
SARS-CoV-2 vaccines in development.
TL;DR: The development of vaccines against SARS-CoV-2 is reviewed, including an overview of the development process, the different types of vaccine candidate, and data from animal studies as well as phase I and II clinical trials in humans.
Journal ArticleDOI
Antigen-Specific Adaptive Immunity to SARS-CoV-2 in Acute COVID-19 and Associations with Age and Disease Severity.
Carolyn Rydyznski Moderbacher,Sydney I. Ramirez,Sydney I. Ramirez,Jennifer M. Dan,Jennifer M. Dan,Alba Grifoni,Kathryn M. Hastie,Daniela Weiskopf,Simon Bélanger,Robert K. Abbott,Christina K. Kim,Jinyong Choi,Yu Kato,Eleanor G. Crotty,Cheryl Kim,Stephen A. Rawlings,Jose Mateus,Longping V. Tse,April Frazier,Ralph S. Baric,Bjoern Peters,Jason A. Greenbaum,Erica Ollmann Saphire,Erica Ollmann Saphire,Davey M. Smith,Alessandro Sette,Alessandro Sette,Shane Crotty,Shane Crotty +28 more
TL;DR: A combined examination of all three branches of adaptive immunity at the level of SARS-CoV-2-specific CD4+ and CD8+ T cell and neutralizing antibody responses in acute and convalescent subjects suggested roles for both CD4 plus T cells in protective immunity in COVID-19.
References
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Targets of T Cell Responses to SARS-CoV-2 Coronavirus in Humans with COVID-19 Disease and Unexposed Individuals.
Alba Grifoni,Daniela Weiskopf,Sydney I. Ramirez,Sydney I. Ramirez,Jose Mateus,Jennifer M. Dan,Jennifer M. Dan,Carolyn Rydyznski Moderbacher,Stephen A. Rawlings,Aaron Sutherland,Lakshmanane Premkumar,Ramesh Jadi,Daniel Marrama,Aravinda M. de Silva,April Frazier,Aaron F. Carlin,Jason A. Greenbaum,Bjoern Peters,Bjoern Peters,Florian Krammer,Davey M. Smith,Shane Crotty,Shane Crotty,Alessandro Sette,Alessandro Sette +24 more
TL;DR: Using HLA class I and II predicted peptide ‘megapools’, circulating SARS-CoV-2−specific CD8+ and CD4+ T cells were identified in ∼70% and 100% of COVID-19 convalescent patients, respectively, suggesting cross-reactive T cell recognition between circulating ‘common cold’ coronaviruses and SARS.
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Convergent antibody responses to SARS-CoV-2 in convalescent individuals.
Davide F. Robbiani,Davide F. Robbiani,Christian Gaebler,Frauke Muecksch,Julio C. C. Lorenzi,Zijun Wang,Alice Cho,Marianna Agudelo,Christopher O. Barnes,Anna Gazumyan,Shlomo Finkin,Thomas Hagglof,Thiago Y. Oliveira,Charlotte Viant,Arlene Hurley,Hans Heinrich Hoffmann,Katrina G. Millard,Rhonda G. Kost,Melissa Cipolla,Kristie Gordon,Filippo Bianchini,Spencer T. Chen,Victor A. Ramos,Roshni Patel,Juan Dizon,Irina Shimeliovich,Pilar Mendoza,Harald Hartweger,Lilian Nogueira,Maggi Pack,Jill Horowitz,Fabian Schmidt,Yiska Weisblum,Eleftherios Michailidis,Alison W. Ashbrook,Eric Waltari,John E. Pak,Kathryn E. Huey-Tubman,Nicholas Koranda,Pauline R. Hoffman,Anthony P. West,Charles M. Rice,Theodora Hatziioannou,Pamela J. Bjorkman,Paul D. Bieniasz,Paul D. Bieniasz,Marina Caskey,Michel C. Nussenzweig,Michel C. Nussenzweig +48 more
TL;DR: Most convalescent plasma samples obtained from individuals who recover from COVID-19 do not contain high levels of neutralizing activity, and rare but recurring RBD-specific antibodies with potent antiviral activity were found in all individuals tested, suggesting that a vaccine designed to elicit such antibodies could be broadly effective.
Journal ArticleDOI
Robust T Cell Immunity in Convalescent Individuals with Asymptomatic or Mild COVID-19.
Takuya Sekine,André Perez-Potti,Olga Rivera-Ballesteros,Kristoffer Strålin,Jean Baptiste Gorin,Annika Olsson,Sian Llewellyn-Lacey,Habiba Kamal,Gordana Bogdanovic,Sandra Muschiol,David J. Wullimann,Tobias Kammann,Johanna Emgård,Tiphaine Parrot,Elin Folkesson,Olav Rooyackers,Lars Eriksson,Jan-Inge Henter,Anders Sönnerborg,Tobias Allander,Jan Albert,Morten Nielsen,Jonas Klingström,Sara Gredmark-Russ,Niklas K. Björkström,Johan K. Sandberg,David Price,Hans-Gustaf Ljunggren,Soo Aleman,Marcus Buggert +29 more
TL;DR: It is shown that SARS-CoV-2 elicits robust, broad and highly functional memory T cell responses, suggesting that natural exposure or infection may prevent recurrent episodes of severe COVID-19.
Journal ArticleDOI
DNA vaccine protection against SARS-CoV-2 in rhesus macaques.
Jingyou Yu,Lisa H. Tostanoski,Lauren Peter,Noe B. Mercado,Katherine McMahan,Shant H. Mahrokhian,Joseph P. Nkolola,Jinyan Liu,Zhenfeng Li,Abishek Chandrashekar,David R. Martinez,Carolin Loos,Caroline Atyeo,Stephanie Fischinger,John S. Burke,Matthew D. Slein,Yuezhou Chen,Adam Zuiani,Felipe J.N. Lelis,Meghan Travers,Shaghayegh Habibi,Laurent Pessaint,Alex Van Ry,Kelvin Blade,Renita Brown,Anthony Cook,Brad Finneyfrock,Alan Dodson,Elyse Teow,Jason Velasco,Roland Zahn,Frank Wegmann,Esther A. Bondzie,Gabriel Dagotto,Makda S. Gebre,Xuan He,Catherine Jacob-Dolan,Marinela Kirilova,Nicole Kordana,Zijin Lin,Lori F. Maxfield,Felix Nampanya,Ramya Nityanandam,John D. Ventura,Huahua Wan,Yongfei Cai,Bing Chen,Aaron G. Schmidt,Duane R. Wesemann,Ralph S. Baric,Galit Alter,Hanne Andersen,Mark G. Lewis,Dan H. Barouch,Dan H. Barouch +54 more
TL;DR: Analysis of the vaccine candidates in rhesus macaques showed that animals developed protective humoral and cellular immune responses when challenged with the SARS-CoV-2 virus, suggesting an immune correlate of protection.
Journal ArticleDOI
ChAdOx1 nCoV-19 vaccine prevents SARS-CoV-2 pneumonia in rhesus macaques.
Neeltje van Doremalen,Teresa Lambe,Alexandra J. Spencer,Sandra Belij-Rammerstorfer,Jyothi N. Purushotham,Jyothi N. Purushotham,Julia R Port,Victoria A. Avanzato,Trenton Bushmaker,Amy Flaxman,Marta Ulaszewska,Friederike Feldmann,Elizabeth R. Allen,Hannah Sharpe,Jonathan E Schulz,Myndi G. Holbrook,Atsushi Okumura,Kimberly Meade-White,Lizzette Pérez-Pérez,Nick J. Edwards,Daniel B. Wright,Cameron Bissett,Ciaran Gilbride,Brandi N. Williamson,Rebecca Rosenke,Dan Long,Alka Ishwarbhai,Reshma Kailath,Louisa Rose,Susan J. Morris,Claire Powers,Jamie Lovaglio,Patrick W. Hanley,Dana P. Scott,Greg Saturday,Emmie de Wit,Sarah C. Gilbert,Vincent J. Munster +37 more
TL;DR: It is shown that the adenovirus-vector-based vaccine ChAdOx1 nCoV-19, which encodes the spike protein of SARS- CoV-2, is immunogenic in mice and elicites a robust humoral and cell-mediated response.
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