Effect of a Third COVID-19 Booster Among Health Care Workers
NCT ID: NCT05373459
Last Updated: 2024-02-28
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
3167 participants
OBSERVATIONAL
2022-05-16
2022-12-31
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
HCWs were required to submit a standardized online self-declaration form for report of 1) demographic of the HCWs, 2) symptoms related history and 3) COVID-19 exposure history once they were COVID-19 confirmed by rapid antigen test against COVID-19 and/or polymerase chain reaction (PCR) test for COVID-19. Subsequent follow up such as contact tracing, COVID-19 PCR testing results of these HCWs and status of return to work were captured by the infection control team in a systematic manner.
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
Serological Response to mRNA and Inactivated COVID-19 Vaccine in Health Care Workers in Hong Kong
NCT04898946
Quantification of Binding and Neutralizing Antibody Levels in COVID-19 Vaccinated Health Care Workers Over 1 Year
NCT04910971
The Immunogenicity and Persistence of Booster Dose With Hepatitis B Vaccine in College Students
NCT05099757
A Study to Evaluate Vaccines Against COVID-19 in the Real World
NCT04775056
The Immune Responses After Hepatitis B Revaccination Doses in a Young Cohort
NCT04970836
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
COHORT
RETROSPECTIVE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
Health care workers without third COVID-19 booster
Health care workers received less than 3 doses of COVID-19 vaccine
No interventions assigned to this group
HCWs with third COVID-19 booster
Health care workers received at least 3 doses of COVID-19 vaccine
Third COVID-19 booster
Third COVID-19 booster
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Third COVID-19 booster
Third COVID-19 booster
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
Exclusion Criteria
18 Years
ALL
Yes
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Hong Kong Sanatorium & Hospital
INDUSTRY
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Dr. Jonpaul ST Zee
Specialist in Infectious Disease
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Jonpaul Sze Tsing Zee, MBChB
Role: PRINCIPAL_INVESTIGATOR
Hong Kong Sanatorium & Hospital
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Hong Kong Sanatorium & Hospital
Hong Kong, , Hong Kong
Countries
Review the countries where the study has at least one active or historical site.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
Third COVID-19 booster
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.