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SARS-CoV-2 antibody response after a booster dose of the mRNA COVID-19 vaccine (BNT162b2) among Thai children and adolescents aged 5-17 years.

Phase 4
Completed
Conditions
Healthy Thai children aged 5-17 years who received two doses of the mRNA vaccine (BNT162b2).
children, Booster dose, Third vaccination, SARS-CoV-2, COVID-19, vaccines, mRNA vaccines, Adverse events, Vaccine safety
Registration Number
TCTR20230424002
Lead Sponsor
Siriraj Grant for Research Development
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Completed
Sex
All
Target Recruitment
150
Inclusion Criteria

1. The subject is aged 5 to less than 18 years. 2. Have received two doses of full dose mRNA COVID-19 vaccine 3. Have received 2nd dose of COVID-19 vaccine for at least 3 months at the time of third vaccination 4. Have no history of detecting SARS-CoV-2 infection 5. Can understand Thai language through speaking, reading, and writing 6. Capable of attending all study visits according to the study schedule

Exclusion Criteria

1. Have any history of severe drug or vaccine allergy (anaphylaxis) 2. Have a history of Myocarditis or pericarditis from the mRNA COVID-19 vaccine 3. Have received any other vaccines within 14 days for live vaccines or 28 days for inactivated vaccines (excepted influenza vaccine) 4. Have body temperature more than equal 38 C or 100.4 F within 24 hours prior received study vaccine 5. Subject who are pregnant 6. Have received blood transfusion, plasma, blood product, blood components, immunoglobulins, antiviral, or antibodies within the last 90 days 7. Have any history of immunodeficiency or received immunosuppressants or received steroids drugs 8. Have any conditions that are considered unsuitable for clinical study by the investigator

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Anti-spike RBD antibody 2-4 weeks and 16-20 weeks after vaccination Chemiluminescent microparticle immunoassay (CMIA)
Secondary Outcome Measures
NameTimeMethod
eutralizing antibody 2-4 weeks after vaccination Neutralizing Antibody Assays,Adverse event 7 days after vaccination Observe local and systemic reactions.
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