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Immunogenicity and Reactogenicity of mRNA BNT162b2 COVID-19 Vaccine among Thai Adolescents with Chronic Diseases

Reactogenicity and immunogenicity of mRNA COVID-19 vaccine (ComirnatyTM) among Thai adolescent with chronic diseases

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20210826001
Enrollment
300
Registered
2021-08-26
Start date
2021-08-23
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

mRNA COVID-19 vaccine in adolescence between 12-18 years of age with chronic disease mRNA COVID-19 vaccine adolescence chronic disease reactogenicity immunogenicity

Interventions

Chronic disease with immunocompromised status which the last blood sample will be obtained at 3 months after complete vaccination.,Chronic disease with immunocompromised status which the last blood sa
Chronic disease with immunocompromised status 3 mo,Chronic disease with immunocompromised status 6 mo,Chronic disease without immunocompromised status 3 mo,Chronic disease without immunocompromised st

Sponsors

Pediatric Infectious Disease Society of Thailand (PIDST)
Lead Sponsor
National Vaccine Institute (NVI)
Collaborator

Eligibility

Sex/Gender
All
Age
12 Years to 18 Years

Inclusion criteria

Inclusion criteria: Adolescence between 12-18 years of age at the enrollment date No history of COVID-19 vaccination No history of COVID-19 infection

Exclusion criteria

Exclusion criteria: Acute fever with body temperature above 37.8 degree Celsius within 3 days History of drug anaphylaxis or vaccine ingredient allergy History of lived vaccine administration within 4 weeks

Design outcomes

Primary

MeasureTime frame
Immunogenicity 1 months after complete vaccination Anti-S-RBD antibody level and ELISpot,Reactogenicity 14 days after vaccination Diary card

Secondary

MeasureTime frame
Persistent of immune response 6 months after complete vaccination Anti-S-RBD antibody level and ELISpot,Immunogenicity 6 months after complete vaccination Anti-S-RBD antibody level and ELISpot

Countries

Thailand

Contacts

Public ContactNapaporn Chantasrisawad

Faculty of Medicine, Chulalongkorn University

napaporn.cha@chula.ac.th022564930

Outcome results

None listed

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