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Immunological responses and adverse reactions of the heterologous second booster dose of BNT162b2 after two-dose CoronaVac for COVID-19 vaccination in healthcare workers of Faculty of Medicine, Naresuan University.

Immunological responses and adverse reactions of the heterologous second booster dose of BNT162b2 after two-dose CoronaVac for COVID-19 vaccination in healthcare workers of Faculty of Medicine, Naresuan University.

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
TCTR
Registry ID
TCTR20221112001
Enrollment
340
Registered
2022-11-12
Start date
2021-09-01
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Assessing the immunological responses and adverse reactions elicited by the heterologous second booster dose of BNT162b2 after two-dose CoronaVac for COVID-19 vaccination COVID-19

Interventions

The heterologous second booster dose of BNT162b2 after two-dose CoronaVac for COVID-19 vaccination in healthcare workers of Faculty of Medicine, Naresuan University.
Experimental Biological/Vaccine
the heterologous second booster dose of BNT162b2 after two-dose CoronaVac for COVID-19 vaccination

Sponsors

The National Science Research and Innovation Fund
Lead Sponsor
Naresuan University
Collaborator

Eligibility

Sex/Gender
All
Age
20 Years to No maximum

Inclusion criteria

Inclusion criteria: 20 years old or older who never had prior clinical symptoms of SARS-CoV-2 infection.

Exclusion criteria

Exclusion criteria: immunocompromised persons, receiving immunosuppressive drugs, receiving blood products and pregnancy

Design outcomes

Primary

MeasureTime frame
The IgG against the SARS-CoV-2-spike protein 4 and 24 weeks after the second booster dose of BNT162b2. fluoroenzymeimmunoassay—

Secondary

MeasureTime frame
Adverse reactions at the first 3 days, 4 weeks and 24 weeks after the second booster dose of BNT162b2. Case record form—

Countries

Thailand

Contacts

Public ContactSupawadee Makanut

Faculty of Medicine, Naresuan University

supawadeem@nu.ac.th0810384225

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026