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Persistence of anti-SARS-CoV2 antibodies in infants born during 2021-2023 to the mothers who had received COVID-19 vaccination during pregnancy

Persistence of anti-SARS-CoV2 antibodies in infants born during 2021-2023 to the mothers who had received COVID-19 vaccination during pregnancy

Status
Unknown
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20230324006
Enrollment
250
Registered
2023-03-24
Start date
2022-03-12
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

Persistence of transplacental antibodies, acquired from maternal COVID-19 vaccination or SARs-CoV-2 infection during pregnancy, in infants age less than 6 months old. COVID-19 vaccine, anti-SARs-CoV-2 antibodies, antibody, pregnant women, neonate

Interventions

Healthy neonates or infants, aged 0 days to 4 months old, (gestational age more than 32 weeks at birth) born to mothers aged 18 to 45 years old who received at least 1 dose of any COVID-19 vaccine typ
Other
Healthy neonates

Sponsors

National Vaccine Institute
Lead Sponsor

Eligibility

Sex/Gender
All
Age
No minimum to 4 Months

Inclusion criteria

Inclusion criteria: Healthy neonates or infants, aged 0 days to 4 months old, (gestational age more than 32 weeks at birth) born to mothers aged 18 to 45 years old who received at least 1 dose of any COVID-19 vaccine types (mRNA, viral-vector or inactivated vaccine) in any of the following period: - at least 1 dose or recent booster dose within 3 months before pregnancy - during pregnancy but not exceed 2 weeks before delivery

Exclusion criteria

Exclusion criteria: Neonates or infants who had any medical-related problems for example preterm (GA < 32 weeks at birth), congenital anomalies, severe birth infection or complications, immune deficiency and receiving any blood components products or immunomodulators as well as pregnant women with severe medical illnesses (e.g., exposure to immunosuppressive drugs, HIV infection, severe sepsis) that might affect antibody responses must be excluded from this study.

Design outcomes

Primary

MeasureTime frame
Persistence of antibodies after the end of recriutment geometric mean

Secondary

MeasureTime frame
breastfeeding after the end of recruitment breakthrogh COVID-19 infection

Countries

Thailand

Contacts

Public ContactKeswadee Lapphra

Siriraj Hospital, Faculty of Medicine, Mahidol University

keswadee@gmail.com0802118078

Outcome results

None listed

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