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Blood tests track COVID-19 immunity for a year

NCT ID NCT04562285

Diagnosis Sponsor: Henry Ford Health System Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed study looked at how well two different blood tests could detect antibodies against the virus that causes COVID-19. Researchers followed 829 adults who had tested positive for COVID-19, checking their blood during hospitalization and for up to 12 months afterward. The goal was to understand how long the immune response lasts and how accurately these tests measure it.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could improve how doctors measure immune response to COVID-19 using simple blood tests.
What could go wrong
This is an observational study, not a treatment trial. The tests may not accurately predict protection from future infection.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

829 people

The number who actually took part.

Started

Jun 2020

Finished

Jun 2024

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

subjects will be identified from a retrospective data review and a laboratory information system (LIS) SunQuest identification of COVID-19 positive (RT-PCR SARS CoV-2) samples or who are already participating in the TCRC collection protocol. This study will recruit subjects in which a baseline serum sample was already obtained either through standard of care procedures or through voluntary participation in the TCRC biorepository.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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

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Conditions

The condition(s) this trial relates to.

COVID-19

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

COVID19

Contacts and locations

Locations

  • Henry Ford Health System

    Detroit, Michigan, 48202, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.