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Antibody persistence against diphtheria, tetanus, pertussis, hepatitis B, measles, mumps and rubella in 9-12-year-old Thai children following immunization with pentavalent and hexavalent vaccines, and the immunogenicity of Tdap administered at 11 years of age

Antibody persistence against diphtheria, tetanus, pertussis, hepatitis B, measles, mumps and rubella in 9-12-year-old Thai children following immunization with pentavalent and hexavalent vaccines, and the immunogenicity of Tdap administered at 11 years of age

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20240723005
Enrollment
250
Registered
2024-07-23
Start date
2024-09-01
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

Children aged 9-12 years who are healthy with previous immunization with either pentavalent or hexavalent vaccines. Informed consent obtained from parents/guardians. diphtheria tetanus pertussis hepatitis B measles mumps rubella

Interventions

This group received hexavalent vaccines at month 2,4,6, 18.,This group received pentavalent vaccines at month 2,4,6, 18.
Prevention,Prevention
hexavalent,pentavalent

Sponsors

Ratchadapiseksomphot Endowment Fund, Chulalongkorn University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
9 Years to 12 Years

Inclusion criteria

Inclusion criteria: Children aged 9-12 years Previous immunization with either pentavalent or hexavalent vaccines Informed consent obtained from parents/guardians

Exclusion criteria

Exclusion criteria: 1. Serious underlying medical condition e.g. genetic disorder such as Down syndrome, children in immunosuppressive state or receiving immunosuppressive agents, human immunodeficiency virus infection, chronic lung or heart disease, chronic liver or kidney disease, history of chronic or recurrent infections. 2. Primary or secondary humoral immune disorders 3. History of adverse reactions to vaccines 4. Participation in another clinical study

Design outcomes

Primary

MeasureTime frame
antibody levels to hepatitis B annually ELISA

Secondary

MeasureTime frame
antibody levels to DTP Annually ELISA,antibody levels to MMR Annually ELISA

Countries

Thailand

Contacts

Public ContactNasamon Wanlapakorn

Chulalongkorn University

nasamon.w@chula.ac.th022564929

Outcome results

None listed

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