Research on the clinical significance of COVID-19 Booster Vaccines

Opinion Polls and Antibody Response Dynamics of Vaccination with COVID-19 Booster Vaccines

Status

Recruiting

Phases

Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2200059737

Enrollment

Unknown

Registered

2022-05-10

Start date

2022-10-22

Completion date

Unknown

Last updated

2024-03-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19

Interventions

Group 1 :

Group 2:

Eligibility

Sex/Gender

All

Age

18 Years to 60 Years

Inclusion criteria

Inclusion criteria: 1. People who have been fully vaccinated with two doses of the new crown inactivated vaccine; 2. Collect the 14-180d population who voluntarily received the third dose of vaccine according to the vaccination procedure.

Exclusion criteria

Exclusion criteria: 1. Those who have not signed the informed consent; 2. Those who cannot cooperate normally; 3. People who are pregnant or suffering from serious diseases.

Design outcomes

Primary

Measure	Time frame
antibody;	—

Countries

China

Contacts

Public ContactHuanjie Li

Jinan Central Hospital

lihuanjie@sdu.edu.cn+86 13658610093

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026