Clover’s Vaccine Candidate Reduced Household Transmission of SARS-CoV-2 in Study Published in Clinical Infectious Diseases
SHANGHAI, China and SEOUL, Republic of Korea, Nov. 30, 2022 (GLOBE NEWSWIRE) -- Clover Biopharmaceuticals, Ltd. (Clover; HKEX: 02197), a global clinical-stage biotechnology company developing novel vaccines and biologic therapeutics, and the International Vaccine Institute, an international nonprofit organization devoted to providing vaccines critical to global public health and based in Seoul, Korea, today announced that Clinical Infectious Diseases has published additional data from SPECTRA, a global Phase 2/3 clinical trial, that showed vaccination with SCB-2019 (CpG 1018/Alum) reduced the risk of transmitting SARS-CoV-2 infection to household members, compared to placebo participants.
- Among the 134 household contacts of infected household members who had received SCB-2019, there was one case of COVID-19; among the 250 household contacts of infected household members who were not vaccinated, there were 12 cases.
- There were no cases of symptomatic SARS-CoV-2 infection among household contacts who were partially or fully vaccinated and where the infected household member was vaccinated with SCB-2019.
- This indicates that SCB-2019 vaccination reduced household transmission and that vaccinated household contacts also likely benefited from the protection provided by their own vaccination.
- The study team was blinded to the assignment of SPECTRA participants to vaccine or placebo groups.