NCT06763887

Brief Summary

The purpose of this study is to evaluate the immunogenicity and immune protection of COVID-19, especially the recently prevalent strains, against the background of current immunization in Chinese population

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Nov 2023

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 15, 2023

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2024

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

November 21, 2024

Completed
2 months until next milestone

First Posted

Study publicly available on registry

January 8, 2025

Completed
Last Updated

January 8, 2025

Status Verified

November 1, 2024

Enrollment Period

8 months

First QC Date

November 21, 2024

Last Update Submit

January 7, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • PBMC

    When conducting blood sample analysis, we focus on separating and evaluating in detail the composition and counting of peripheral blood mononuclear cell (PBMC). This process involves identifying and quantifying various types of mononuclear cells in the sample, such as lymphocytes, monocytes, etc. These cells are crucial for understanding an individual's immune status. Through precise separation techniques and advanced cell analysis methods, we are able to obtain accurate and detailed reports on the classification and quantity of mononuclear cells.

    About two and a half years

Study Arms (1)

Observation

Other: No Interventions

Interventions

No intervention

Observation

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

People infected with COVID-19

You may qualify if:

  • He was infected with COVID-19 from November to December 2022;
  • Have not been infected with COVID-19 (the subject said that he was not infected and signed the informed consent form);
  • Those who agree and sign the informed consent form.

You may not qualify if:

  • Missing or incomplete questionnaires that affect research results;
  • Individuals with combined dysfunction of important organs such as the heart, liver, and lungs;
  • Mental and behavioral abnormalities;
  • Intellectual disability;
  • Under 18 years old or over 75 years old;
  • Low understanding and communication skills.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The First Affiliated Hospital of Air Force Military Medical University

Xi'an, Shaanxi, 710004, China

Location

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 21, 2024

First Posted

January 8, 2025

Study Start

November 15, 2023

Primary Completion

June 30, 2024

Study Completion

June 30, 2024

Last Updated

January 8, 2025

Record last verified: 2024-11

Locations