1. Safety and immunogenicity of a self-amplifying RNA vaccine against COVID-19: COVAC1, a phase I, dose-ranging trial
- Author
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Katrina M. Pollock, Hannah M. Cheeseman, Alexander J. Szubert, Vincenzo Libri, Marta Boffito, David Owen, Henry Bern, Leon R. McFarlane, Jessica O'Hara, Nana-Marie Lemm, Paul McKay, Tommy Rampling, Yee Ting N. Yim, Ana Milinkovic, Cherry Kingsley, Tom Cole, Susanne Fagerbrink, Marites Aban, Maniola Tanaka, Savviz Mehdipour, Alexander Robbins, William Budd, Saul Faust, Hana Hassanin, Catherine A. Cosgrove, Alan Winston, Sarah Fidler, David Dunn, Sheena McCormack, Robin J. Shattock, Kirsty Adams, Fahimah Amini, Nafisah B Atako, Amalina Bakri, Wendy Barclay, Elizabeth Brodnicki, Jonathan C Brown, Ruth Byrne, Rowena Chilvers, Sofia Coelho, Suzanne Day, Monica Desai, Eleanor Dorman, Tamara Elliott, Katie E Flight, James Fletcher, John Galang, Jagruti Gohil, Aneta Gupta, Chris Harlow, Kai Hu, Mohini Kalyan, Dominic Lagrue, Ely Liscano, Cecilia Njenga, Krunal Polra, Derecia A Powlette, Paul Randell, Mary Rauchenberger, Ianto Redknap, Maravic Ricamara, Paul Rogers, Hadijatou Sallah, Karnyart Samnuan, Michael Schumacher, Zareena Shah, Rachel Shaw, Thomas Shaw, Stefan Sivapatham, Susie Slater, Kim Sorley, Regina Storch, Elizabeth Tan, Tricia Tan, Lieze Thielemans, Sarah Whitely, Charlotte Valentine, Jeeva Varghese, Asha Vikraman, Martin Wilkins, The Sir Joseph Hotung Charitable Settlement, and National Institute for Health Research
- Subjects
NSP, non-structural protein ,medicine.medical_specialty ,Medicine (General) ,Coronavirus disease 2019 (COVID-19) ,Article ,AEs, adverse events ,R5-920 ,Internal medicine ,Medicine ,Seroconversion ,Adverse effect ,biology ,LNP, lipid nanoparticle ,business.industry ,GOI, gene of Interest ,Immunogenicity ,General Medicine ,Vaccination ,Clinical research ,biology.protein ,Antibody ,business ,COVAC1 study Group ,saRNA ,saRNA, self-amplifying RNA ,VEEV, Venezuelan equine encephalitis virus - Abstract
Summary: Lipid nanoparticle (LNP) encapsulated self-amplifying RNA (saRNA) is a novel technology formulated as a low dose vaccine against COVID-19. Methods: A phase I first-in-human dose-ranging trial of a saRNA COVID-19 vaccine candidate LNP-nCoVsaRNA, was conducted at Imperial Clinical Research Facility, and participating centres in London, UK. Participants received two intramuscular (IM) injections of LNP-nCoVsaRNA at six different dose levels, 0·1-10·0mg, given four weeks apart. An open-label dose escalation was followed by a dose evaluation. Solicited adverse events (AEs) were collected for one week from enrolment, with follow-up at regular intervals (1-8 weeks). The binding and neutralisation capacity of anti-SARS-CoV-2 antibody raised in participant sera was measured by means of an anti-Spike (S) IgG ELISA, immunoblot, SARS-CoV-2 pseudoneutralisation and wild type neutralisation assays. Findings: 192 healthy individuals with no history or serological evidence of COVID-19, aged 18-45 years were enrolled. The vaccine was well tolerated with no serious adverse events related to vaccination. Seroconversion at week six whether measured by ELISA or immunoblot was related to dose (both p
- Published
- 2022