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Scientists track vaccine power over time in healthy volunteers

NCT ID NCT05078905

Knowledge-focused Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) 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 This study
Running, but no longer taking on new participants.
Completed
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jul 31, 2026 · Updated 2 times

Summary

This study aims to understand why the protection from vaccines like those for COVID-19 fades over time. Researchers will follow 1,200 healthy adults for one year, collecting blood samples and health updates after they receive a vaccine or booster in their community. The goal is to learn how the immune system responds to vaccines for COVID-19 and other new infectious diseases.

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

103 people

The number who actually took part.

Started

Oct 2021

Expected to finish

Jan 2050

An estimate. End dates often move.

Lead sponsor

A government research agency

The lead sponsor is the US National Institutes of Health.

Who can take part

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

Who is studied

Individuals greater than 18 years of age who are scheduled to receive a initial or booster vaccination to an emerging infectious disease.

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: General Inclusion Criteria for All Groups: In order to be eligible to participate in this study, an individual must meet all of the following criteria: 1. Stated willingness to comply with all study procedures and availability for the duration of the study 2. Age 18 years or older 3. Hemoglobin \>= 9.0 grams per deciliter (g/dL) or \>= 11.2 for women who are pregnant. 4. Willingness to give consent for the storage of blood samples for research 5. Ability of subject to understand and the willingness to sign a written informed consent document Inclusion Criteria for Primary (New) Vaccination Group: 1\. No history of having received a dose of the vaccine for the infectious disease being studied. Subjects who have enrolled under another Laboratory of Immunoregulation (LIR) protocol and had samples drawn prior to vaccination will also be eligible for enrollment. Inclusion Criteria for Secondary (Booster) Vaccination Group: 1\. Willingness to return for baseline research blood collection prior to booster vaccination. EXCLUSION CRITERIA: 1. Current abuse of alcohol or other drugs that, in the judgement of the Principal Investigator (PI) could interfere with patient compliance. 2. Any medical or mental health condition that, in the judgement of the PI, would make the volunteer unable to participate in the study.

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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.

COVID -19 Healthy volunteer Vaccination

Contacts and locations

Locations

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892, United States

More trials for these conditions

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