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S-268019

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S-268019-b is a protein subunit COVID-19 vaccine candidate developed by Shionogi.^[1][2]

A study in non-human primates published in 2022 concluded S-268109-b demonstrated efficacy in a SARS-CoV-2 challenge experiment, although neutralizing antibodies against the Omicron variant were reduced.^[3]

In a phase 1/2 clinical trial in Japan, the developers concluded reactions to the vaccine were mild, and neutralizing antibodies were similar to those in people who had recovered from Covid-19.^[4] A phase 3 trial planned for 54,915 participants began in December 2021 in Vietnam.^[5]

Preliminary results of a phase 2/3 trial using S-268019-b as a booster dose after two doses of the BNT162b2 vaccine by Pfizer concluded the vaccine was non-inferior to a booster dose of BNT162b2.^[6]

References[edit]

Scholia has a profile for S-268019 (Q110269731).

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