Immunogenicity and Safety of a Third Dose of COVID-19 Vaccine(Vero Cell), Inactivated in the Elderly
Summary
The lay summary the sponsor registered on ClinicalTrials.gov.
Investigators
The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.
- Jun Yang, Master
Yunnan Provincial Center for Disease Control and Prevention
Principal Investigator
A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.
Sites
1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.
- Yongde Center for Diseases Control and Prevention
Lincang, Yunnan, China
Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.
Drugs studied
The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.
Registration & key dates
Registry attributes as recorded on the ClinicalTrials.gov study record.
- Start
- 6 Dec 2021
- Primary completion
- 30 Jun 2022
- Completion
- 30 Jul 2022
- Last update posted
- 11 Aug 2022
- Registered enrollment
- 400
- Registry id
- NCT05398926
Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.