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Covid19NCT04922944

Post COVID-19 Vaccination Analysis in Healthcare Worker Recipients

An observational study of Covid19 and Vaccine Reaction, run by Huntington Memorial Hospital at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This research study is studying how healthcare worker recipients react after receiving vaccinations for COVID-19. The objective of the study is to evaluate the immune response to COVID-19 vaccination. Read more about this study

Who is it for?
Any age
Conditions the study is for
Covid19, Vaccine Reaction
What is being tested?
COVID-19 vaccine
Type of treatment
Vaccines
How many people
167 participants
Where
1 siteUnited States
Study dates
8 Mar 2021to 1 Mar 2022
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Current employee or active member of the medical staff of Huntington Hospital, Pasadena, CA who has completed the vaccination regimen

Who may be able to join

  • Signed informed consent for study
  • Current employee or active member of the medical staff of Huntington Hospital, Pasadena, CA, (must have valid hospital identification)
  • Must have completed vaccination regimen (two doses if required) no more than 8 weeks ± 5 days before enrollment
  • Must have completed, valid vaccination card, if vaccinations received at a center other than Huntington Hospital
  • Able to read English, sign consent form and complete on-line surveys

Who cannot join

  • Huntington Hospital employees on leave of absence
  • Anyone not able/willing to provide blood specimens and respond to surveys for the 52-week study period

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Huntington Hospital

    Pasadena, California, 91105

Other trials in United States

About this study

Official title: Post Vaccination Antibody Assays and Reactions in Hospital Employees and Medical Staff: an Analysis of Antibody Response Over Time

This research study is studying how healthcare worker recipients react after receiving vaccinations for COVID-19. The objective of the study is to evaluate the immune response to COVID-19 vaccination. The immunity will be evaluated over time by measuring serum semi-quantitative SARS-Co-V2 IgG from blood specimens and analyzing vaccine reaction data. SARS-CoV-2 is the name for the virus responsible for COVID-19 infections. IgG, immunoglobulin G, is an antibody found in the blood that protects against bacterial and viral infections. Study subjects will also be asked to report physical reactions they may have experienced related to vaccinations.

Read the detailed description

As some of the first recipients of SARS-CoV-2 vaccines under emergency authorization use, healthcare workers represent a diverse subpopulation, that are now moving through the immune response to the Pfizer and Moderna mRNA vaccines. As individual responses may vary, this provides an opportunity to evaluate levels of IgG response in relation to age, gender, comorbidities and other factors that may influence immunity. We recognize that, though this is only part of the immune response that may be protective for severe COVID-19 disease, it is a first step in understanding the level and durability of post vaccination SARS-CoV-2 antibodies.

This small, pilot study will evaluate the immune response over time by measuring serum semi-quantitative SARS-CoV-2 IgG from healthcare vaccinees at various timepoints. A high-level review of reactions related to the vaccinations will be performed with the same population of healthcare workers.

Being tested
COVID-19 vaccine
Keywords
SARS-CoV-2, vaccination, antibody formation
Medical subject headings
COVID-19

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • COVID-19 vaccineDrug

    Also called Pfizer-BioNTech COVID-19 vaccine, Moderna COVID-19 vaccine

    Two-dose COVID-19 vaccine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in SARS-CoV-2 IgG Titer Over Time

    Semi-quantitative SARS-CoV-2 IgG titer

    Measured: 8 weeks (± 5 days) post-vaccination regimen completion; 24 weeks (± 5 days) post-vaccination regimen completion; and 52 weeks (± 5 days) post-vaccination regimen completion

Secondary outcomes (2)
  1. Occurrence of post-vaccine reactions

    Subjective reporting of occurrence of post-vaccination reactions including anaphylactic reactions (such as difficulty breathing, swelling of face and throat, fast heartbeat, bad rash all over body, and dizziness and weakness); injection site pain; injection site swelling/hardness; injection site redness; tiredness; headache; muscle pain; chills; join pain; fever; nausea; feeling unwell; and/or swollen lymph nodes

    Measured: Within 3 days after vaccine injections

  2. Severity of post-vaccine reactions

    Subjective reporting of severity of post-vaccine reactions (none, mild, moderate, or severe)

    Measured: Within 3 days after vaccine injections

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Jun 2021
  2. Study start8 Mar 2021
  3. Primary completion1 Mar 2022
  4. Study completion1 Mar 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
167 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04922944
Sponsor's protocol ID
Pro00050032
Status last verified
Sep 2024
First submitted
30 Mar 2021
Last updated
19 Sep 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Covid19 and Vaccine Reaction, run by Huntington Memorial Hospital at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in SARS-CoV-2 IgG Titer Over Time (time frame: 8 weeks (± 5 days) post-vaccination regimen completion; 24 weeks (± 5 days) post-vaccination regimen completion; and 52 weeks (± 5 days) post-vaccination regimen completion). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Sep 2024.

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