Skip to content

Sustained Immunity to COVID-19 as Measured by SARS-CoV-2 Serology Assays

Initial and Sustained Immunity to SARS-CoV-2 Measured by Serologic Assays on an Automated Immunoassay System

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04562285
Enrollment
829
Registered
2020-09-24
Start date
2020-06-23
Completion date
2024-06-07
Last updated
2025-12-03

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

Conditions

Covid19

Keywords

SARS-CoV-2, Antibodies, Seroprevalence

Brief summary

The primary objective is to assess the ability of COVID-19 IgG and IgM assays to detect an immune response in COVID-19 patients in the Henry Ford Health System (HFHS), both during hospitalization and over the following 12 months.

Detailed description

The design strategy for this study is to validate the detection of COVID-19 antibodies in subjects at HFHS who test positive with RT-PCR for SARS-CoV-2 using fully automated test systems already in the core automated laboratory at HFH. This is a study of the immune response and kidney health of subjects who have recovered from COVID-19 infection. There are 4 aims: Aim 1. Assess detection of COVID-19 antibodies in subjects before discharge from HFHS who tested positive with RT-PCR for SARS-CoV-2 using fully automated immunoassays. Aim 2. Evaluate emergence of immunity over a one-year period in subjects who tested positive with RT-PCR for SARS-CoV-2 using a fully-automated immunoassays. Aim 3. Monitor renal function and kidney health at 6 and 12- months post diagnosis with COVID-19. Aim 4. Determine if SAR-COV-2 can be detected in the saliva of patients over a one year period after a positive PCR test.

Interventions

DIAGNOSTIC_TESTSerologic immunoassays to SARS-CoV-2 antibodies

Detect and characterize antibodies to SARS-CoV-2

Sponsors

Henry Ford Health System
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Patients ≥18 years of age * Positive COVID-19 by RT-PCR SARS-CoV-2 assay * Patients must have a serum sample stored by pathology or within the TCRC biorepository around the date of their COVID-19 RT-PCR positive test

Exclusion criteria

* \< 18 years of age * negative for RT-PCR * no serum sample

Design outcomes

Primary

MeasureTime frameDescription
Detection of antibodies to SARS-CoV-2 in human serum and plasma12 monthsThe study will assess the ability of COVID-19 IgG and IgM assays to detect an immune response in COVID-19 patients in the Henry Ford Health System (HFHS), both during hospitalization and over the following 12 months. The study will use Beckman Coulter anti-Spike IgG assay and Roche anti-Nucleocapsid assay.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026