The New England journal of medicine
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Editorial Comment
Transplantation Tolerance through Hematopoietic Chimerism.
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Randomized Controlled Trial
Intramuscular AZD7442 (Tixagevimab-Cilgavimab) for Prevention of Covid-19.
The monoclonal-antibody combination AZD7442 is composed of tixagevimab and cilgavimab, two neutralizing antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that have an extended half-life and have been shown to have prophylactic and therapeutic effects in animal models. Pharmacokinetic data in humans indicate that AZD7442 has an extended half-life of approximately 90 days. ⋯ A single dose of AZD7442 had efficacy for the prevention of Covid-19, without evident safety concerns. (Funded by AstraZeneca and the U.S. government; PROVENT ClinicalTrials.gov number, NCT04625725.).