Booster breakthrough: mRNA shot supercharges immunity in inactivated vaccine recipients
NCT ID NCT05057182
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at 300 adults aged 30 and older who had already received two doses of an inactivated COVID-19 vaccine (like Sinovac or Sinopharm) at least three months earlier. They were given a booster dose of an mRNA vaccine (Pfizer/BioNTech). Researchers measured their antibody levels and checked for side effects to see if the booster safely and effectively increased protection against COVID-19.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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The University of Hong Kong
Hong Kong, 00000, Hong Kong
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