COVID-19 Antibody quantification and vaccination history and association with viral genotype (variant)

COVID-19 Antibody quantification and vaccination history and association with viral genotype (variant) - COVID-19 Antibody quantification and vaccination history and association with viral genotype (variant)

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000044519

Enrollment

Registered

2021-06-13

Start date

2021-06-14

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

COVID-19

Interventions

Patients affected after vaccination with the new coronavirus will be observed for 1 year after vaccination. Observe healthy subjects after vaccination with the new coronavirus vaccine for 1 year after

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Those who have been or are planning to be vaccinated against the new coronavirus infection 2. Those who are 16 years of age or older at the time of obtaining the consent form 3. The target audience for Theme 1 and Theme 2 may be slack. 4. Basically, a person who has received sufficient explanation before participating in this research, and after sufficient understanding, obtained the voluntary written consent of the research subject. Alternatively, the outline of this test will be posted and announced.

Exclusion criteria

Exclusion criteria: 1. Those who have requested refusal to participate in this research 2. In addition, those who the principal investigator deems inappropriate as research subjects 3. When this research is discontinued by the entire organization conducting the research 4. Those who have an urgent and obvious life threat to the research subject Of the above (1) target patients, those who meet all of the (2) selection criteria and do not meet any of the (3) exclusion criteria are eligible.

Design outcomes

Primary

Measure	Time frame
Subject's present illness, past history, life history 1. Basic information of research subjects: age, gender, diagnosis name, family history, medical history, drug treatment history, allergy history, fever, height, weight, body mass index, physical findings, symptoms 2. Presence or absence of symptoms at the time of vaccination, 3. Laboratory data SARS-CoV-2 IgG antibody, IgM antibody, viral genome genotype Leukocytes, CRP, AST, ALT, LD, ALP, gamma GT, IgG, IgE, IgA, IgM	—

Measure

Time frame

Subject's present illness, past history, life history 1. Basic information of research subjects: age, gender, diagnosis name, family history, medical history, drug treatment history, allergy history, fever, height, weight, body mass index, physical findings, symptoms 2. Presence or absence of symptoms at the time of vaccination, 3. Laboratory data SARS-CoV-2 IgG antibody, IgM antibody, viral genome genotype Leukocytes, CRP, AST, ALT, LD, ALP, gamma GT, IgG, IgE, IgA, IgM

—

Countries

Japan

Contacts

Public ContactHisamitsu Ishihara

Nihon University School of Medicine Itabashi Hospital Internal Medicine

nakayama.tomohiro@nihon-u.ac.jp08017298076

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026