Profiling Spike Protein Antibody Response Post COVID-19 Booster

David Grant U.S. Air Force Medical Center

Overview

A descriptive study that will quantify the mean IgG antibodies remaining in vaccinated healthy participants after their COVID booster.

This is primarily a descriptive study that will quantify with 95% confidence intervals the mean IgG antibodies remaining in vaccinated healthy participants three to nine months after their COVID booster. At specified intervals during this period, a titer will be performed on blood drawn from participants to quantify the IgG antibodies to the SARS-CoV-2 spike protein. This evaluation will not be performed in a lab with CLIA certification and this study will not be used to seek an EUA from the FDA. The FDA and CLIA regulate diagnostic laboratory testing but do not regulate surveillance testing.

Study Type

OBSERVATIONAL

Conditions

COVID-19 Booster Spike Protein IgG Antibody

Interventions

Obtain antibody titersDIAGNOSTIC_TEST

Obtain blood samples for antibody titers at the time of enrollment, at three months, six months and nine months post vaccine booster (+/- ten days).

Eligibility

Sex: ALLMin age: 18 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Adults at Travis Air Force Base who are Active Duty, DoD beneficiaries, and civilian employees who present with a vaccination card verifying they have received a full course of mRNA spike protein COVID vaccine (Moderna, Pfizer, or Johnson \& Johnson) and booster. Exclusion Criteria: * Unvaccinated, partially vaccinated, or unable to provide proof of COVID vaccination * Unwilling or medically unable to have an initial or follow up blood sample drawn * Positive COVID test after receiving COVID booster * Current history of a bleeding disorder, cancer, or are immunocompromised * Received a COVID vaccine booster seven or more months ago

Outcomes

Primary Outcomes

Level of IgG antibody for SARS-CoV-2 spike protein at baseline (0-2.5 months post booster)

Quantify the mean IgG antibodies titers with 95% confidence interval in vaccinated healthy adult participants at baseline (0-2.5 months post COVID booster).

Time frame: Within 2.5 months post COVID booster

Level of IgG antibody for SARS-CoV-2 spike protein 3 months post COVID booster

Quantify the mean IgG antibodies titers with 95% confidence interval in vaccinated healthy adult participants 3 months post COVID booster.

Time frame: within 3 months post COVID booster

Level of IgG antibody for SARS-CoV-2 spike protein 6 months post COVID booster

Quantify the mean IgG antibodies titers with 95% confidence interval in vaccinated healthy adult participants 6 months post COVID booster.

Time frame: within 6 months post COVID booster

Level of IgG antibody for SARS-CoV-2 spike protein 9 months post COVID booster

Quantify the mean IgG antibodies titers with 95% confidence interval in vaccinated healthy adult participants 9 months post COVID booster.

Time frame: within 9 months post COVID booster

Data from ClinicalTrials.gov

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