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Examination of stratification of subjects based on SARS-CoV-2 S-IgG antibody levels before and after vaccination with the new corona vaccine using the compact immunoassay device IA-100

Examination of stratification of subjects based on SARS-CoV-2 S-IgG antibody levels before and after vaccination with the new corona vaccine using the compact immunoassay device IA-100

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1032230148
Enrollment
160
Registered
2023-06-16
Start date
2023-06-05
Completion date
Unknown
Last updated
2025-07-18

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

Conditions

Confirmation of antibody titers before and after vaccination with the new coronavirus COVID-19 Antibody Testing

Interventions

For this clinical study, blood collection will be performed.
blood collection

Sponsors

Haruo Ozaki
Lead Sponsor
Junya Inoue
Collaborator
Sysmex Corporation
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Persons who are able to obtain written consent from the person himself/herself or a representative (including family members, relatives, and adult guardians) and who do not meet all of the following gratitude criteria

Exclusion criteria

Exclusion criteria: A facility resident who was judged by the attending physician to be inappropriate for this study. Institutional residents under the age of 65. Institutional residents with a history of bleeding disorders. Institutional residents with a history of vagal reflexes. Facility residents who do not wish to be vaccinated against COVID-19 during their stay in the facility

Design outcomes

Primary

MeasureTime frame
Whether subjects can be stratified based on the amount of SARS-CoV-2 S-IgG antibodies before and after COVID-19 vaccination

Secondary

MeasureTime frame
Examination of whether there is an association between stratified subject groups and vaccine type, whether they were infected with the new coronavirus before the booster vaccination, age, gender, and whether they were infected after the booster vaccination.

Contacts

Public ContactHirakawa Hiroyuki

Public Interest Incorporated Association Tokyo Medical Association

shien@tokyo.med.or.jp+81-3-3294-8821

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Feb 4, 2026