Safety and Immune Response of COVID-19 Vaccination in Overweight People With Excessive BMI

September 10, 2021 updated by: The Second Affiliated Hospital of Chongqing Medical University
On 11 February 2020, the International Committee for the Classification of Viruses named the disease caused by SAＲS-CoV-2 infection in humans as the new coronavirus pneumonia (coronavirus disease 2019, COVID-19). Due to the changes of immune function and cardiopulmonary function in overweight people, the infection and severity of these patients are higher than that of the general population during the epidemic period. More attention should be paid to personal protection and disease prevention. Vaccination with COVID-19 vaccine can effectively prevent COVID-19 infection, delay or prevent patients from developing into critical illness and reducing mortality. In order to evaluate the safety and efficacy of COVID-19 vaccine for overweight people, and to guide COVID-19 vaccination more scientifically, rationally and effectively, this study was carried out.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Due to the changes of immune function and cardiopulmonary function in overweight people, the infection and severity of these patients are higher than that of the general population during the epidemic period. More attention should be paid to personal protection and disease prevention. Vaccination of COVID-19 can effectively prevent COVID-19 virus infection and delay or prevent patients from developing into critical illness and reduce mortality. The safety and effectiveness of COVID-19 vaccine in this population were evaluated in order to play a scientific and theoretical supporting role in guiding COVID-19 vaccination more scientifically, reasonably and effectively. The samples of this study were collected and tested in the second affiliated Hospital of Chongqing Medical University. Patients with contraindications for vaccination will be excluded. The detected indexes included blood routine test, liver function, COVID-19 antibody titer, antibody duration and other indexes of healthy people (control group) and overweight people after vaccination ( 1, 3, 6 months after vaccination). The adverse reactions related to the vaccine were recorded.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
450

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • China
      • Chongqing, China
        • Recruiting
        • China
        • Contact:
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Overweight population with liver diseases or other basic diseases vaccinated with SARS-Cov-2 vaccine.

Description

Inclusion Criteria:

- 1.Healthy group were as follows: no history of hepatitis, no history of liver cirrhosis, no history of liver cancer and receiving the whole-course COVID-19 vaccination.

2. Overweight people are defined as having a BMI of more than 24 and receiving the whole-course COVID-19 vaccination.

Exclusion Criteria:

  • Patients previously diagnosed or with a history of contact with confirmed cases

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Overweight population with basic diseases
Basic diseases include diabetes, hypertension.
Biological: SARS-COV-2 VACCINE
The antibody titer and adverse reactions were observed.
Overweight population with chronic liver diseases
Chronic liver diseases include chronic hepatitis ,liver cirrhosis, primary hepatocellular carcinoma.
Biological: SARS-COV-2 VACCINE
The antibody titer and adverse reactions were observed.
Healthy population
Control group
Biological: SARS-COV-2 VACCINE
The antibody titer and adverse reactions were observed.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of participants with adverse events after injection.
Time Frame: 1 month after vaccination
The vaccine-related adverse reactions (such as fever, dizziness, fatigue, myalgia, etc.) were recorded and its safety was evaluated.
1 month after vaccination
Number of participants with adverse events after injection.
Time Frame: 3 months after vaccination
The vaccine-related adverse reactions (such as fever, dizziness, fatigue, myalgia, etc.) were recorded and its safety was evaluated.
3 months after vaccination
Number of participants with adverse events after injection.
Time Frame: 6 months after vaccination
The vaccine-related adverse reactions (such as fever, dizziness, fatigue, myalgia, etc.) were recorded and its safety was evaluated.
6 months after vaccination

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Titer and duration of COVID-19 antibody production after vaccination
Time Frame: 1 month after vaccination
The titer and duration of COVID-19 antibody were produced at 1 month
1 month after vaccination
Titer and duration of COVID-19 antibody production after vaccination
Time Frame: 3 months after vaccination
The titer and duration of COVID-19 antibody were produced at 3 months
3 months after vaccination
Titer and duration of COVID-19 antibody production after vaccination
Time Frame: 6 months after vaccination
The titer and duration of COVID-19 antibody were produced at 6 months
6 months after vaccination

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
The Second Affiliated Hospital of Chongqing Medical University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 1, 2021

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 1, 2022

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 1, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 10, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 10, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 14, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 14, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 10, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2021-76

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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