NCT04972591

Brief Summary

A multi-centered clinical follow-up study to investigate the long-term dynamic of COVID-19 antibody level after vaccination.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Mar 2021

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 15, 2021

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

July 21, 2021

Completed
1 day until next milestone

First Posted

Study publicly available on registry

July 22, 2021

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2021

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2022

Completed
Last Updated

July 22, 2021

Status Verified

March 1, 2021

Enrollment Period

10 months

First QC Date

July 21, 2021

Last Update Submit

July 21, 2021

Conditions

Keywords

COVID-19VaccinationAnti-body

Outcome Measures

Primary Outcomes (3)

  • symptoms and signs

    symptoms and signs after vaccination will be collected

    6months

  • antibody levels

    antibody levels will be collected

    6months

  • laboratory findings

    Clinical laboratory examination were obtained during follow-up.

    6months

Study Arms (2)

CHB Group

Patients with CHB

Compared Group

Healthy people

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

All population who has been vaccinated or are prepared to get vaccinated.

You may qualify if:

  • Adult (18 years old or elder) who prepare or have been vaccinated against COVID-19, and has not participated in similar clinical studies.

You may not qualify if:

  • People who are allergic to any active ingredient of the vaccine, any inactive ingredient which was used in the production process, or those who have been allergic to the same kind of vaccine before.
  • People who have had severe allergic reaction to vaccine before (such as acute allergic reaction, vascular neuroedema, dyspnea, etc.)
  • People with uncontrolled epilepsy and other serious neurological diseases (such as transverse myelitis, Guillain-Barre syndrome, demyelinating diseases, etc.)
  • People who are feverish, or suffering from acute diseases, or suffering from acute episodes of chronic diseases, or with serious chronic diseases without control.
  • Pregnant woman
  • Juvenile

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology

Wuhan, Hubei, China

RECRUITING

Biospecimen

Retention: SAMPLES WITH DNA

peripheral blood mononuclear cell (PBMC)

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Central Study Contacts

Qin Ning, Professor

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
professor

Study Record Dates

First Submitted

July 21, 2021

First Posted

July 22, 2021

Study Start

March 15, 2021

Primary Completion

December 31, 2021

Study Completion

June 30, 2022

Last Updated

July 22, 2021

Record last verified: 2021-03

Data Sharing

IPD Sharing
Will not share

Locations