Clinical trial
An Open and Observational Phase Ⅳ Clinical Trial to Evaluate the Immunity Persistence of Sabin Inactivated Poliovirus Vaccine (Vero Cell) After Four Doses
NCT04989231 is registered in ClinicalTrials.gov with Sinovac Biotech Co., Ltd as lead sponsor.
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Registry record
As filed in ClinicalTrials.gov.
- Title
- An Open and Observational Phase Ⅳ Clinical Trial to Evaluate the Immunity Persistence of Sabin Inactivated Poliovirus Vaccine (Vero Cell) After Four Doses
- Lead sponsor
- Sinovac Biotech Co., Ltd
- Phase
- Observational
- Overall status
- Completed
- Start date
- September 9, 2021
- Completion date
- December 25, 2022
- Enrollment
- 450 (actual)
- Sites
- 1
Conditions
As the registry lists them; a condition with its own page is linked.