Immunogenicity and Safety of an Inactivated COVID-19 Vaccine in Elderly People With Chronic Bronchitis and COPD

October 20, 2021 updated by: China National Biotec Group Company Limited

Immunogenicity and Safety of an Inactivated COVID-19 Vaccine in Elderly People With Chronic Bronchitis and Chronic Obstructive Pulmonary Disease

Evaluation of immunogenicity and safety of the subjects aged 60 years and above with chronic bronchitis and chronic obstructive pulmonary disease recruited to receive the schedule of two doses inactivated COVID-19 vaccine with the interval of 21 days .

Study Overview

Status

Recruiting

Detailed Description

The subjects aged 60 years and above with chronic bronchitis and chronic obstructive pulmonary disease were recruited to receive the schedule of two doses inactivated COVID-19 vaccine with the interval of 21 days .

Blood samples will be collected 2 times: before the 1st dose of vaccinatioin and 28 days after the 2nd dose of vaccination.

Any local or systemic adverse events that occurred within 21 days after vaccination will be recorded.

Study Type

Interventional

Enrollment (Anticipated)

400

Phase

  • Phase 4

Contacts and Locations

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

Study Locations

    • Zhejiang
      • Hangzhou, Zhejiang, China, 310051
        • Recruiting
        • Zhejiang Provincial Center for Disease Control and Prevention
        • Contact:
        • Contact:
          • Huakun Lv
          • Phone Number: +86-571-87115111

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

Ages Eligible for Study

60 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion criteria:

  • Subjects aged 60 and above with full capacity for civil conduct;
  • Chronic bronchitis (or chronic obstructive pulmonary disease) diagnosed by a medical institution at level I or above;
  • Body temperature < 37.3 ° C confirmed by clinical examination before enrollment ;
  • Able and willing to complete the entire study plan during the study follow-up period;
  • Have the ability to understand the study procedures, voluntarily sign informed consent, and comply with the requirements of the clinical study protocol

Exclusion criteria for the first dose:

  • Subjects were previously confirmed cases of COVID-19 or asymptomatic infected persons;
  • Subjects have history of vaccination against COVID-19;
  • Being allergic to any component of vaccines (including excipients) ;
  • Injection of non-specific immunoglobulin within 1 month before enrollment;
  • Injection of live attenuated vaccines within 1 month and injection of other vaccines within 14 days before enrollment;
  • Subjects who have experienced severe allergic reactions to vaccines (e.g. acute anaphylaxis, urticaria, angioneurotic edema, dyspnea, etc.);
  • Having uncontrolled epilepsy and other progressive neurological disorders and a history of Guillain-Barre syndrome;
  • Having severe liver and kidney diseases, malignant tumors, acute diseases or acute episodes of chronic diseases;
  • Have been diagnosed with congenital or acquired immunodeficiency, HIV infection, lymphoma, leukaemia or other autoimmune diseases;
  • Have been diagnosed with thrombocytopenia or other clotting disorders that may contraindicate subcutaneous injection;
  • During an acute episode of chronic bronchitis/chronic obstructive pulmonary disease;
  • Other subjects whose physical conditions, as determined by the investigator, are not suitable for inclusion in clinical studies.

Exclusion criteria for the second dose:

  • Subjects who had vaccine-related adverse reactions after the first dose;
  • Having high fever (axillary temperature ≥39.0℃) for three days after the first dose of inoculation, or severe allergic reaction;
  • Having any adverse nervous system reaction after the first dose;
  • During the acute onset of a chronic disease, or the recovery of acute complications less than two weeks;
  • Other reasons for exclusion considered by the investigator.

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

  • Primary Purpose: Prevention
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Experimental Group
A total 400 subjects receive two doses inactivated COVID-19 vaccine with the interval of 21 days
receive two doses inactivated COVID-19 vaccine with the interval of 21 days

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Baseline neutralizing antibody level
Time Frame: Before vaccination (Day 0)
Neutralizing antibody geometric mean titer(GMT) against coronavirus before vaccination
Before vaccination (Day 0)
Neutralizing antibody level
Time Frame: 28 days after the 2th dose (Day 49)
Neutralizing antibody GMT against coronavirus after the 2th dose
28 days after the 2th dose (Day 49)
Seroconversion rate
Time Frame: 28 days after the 2th dose (Day 49)
The rate of seroconversion against coronavirus
28 days after the 2th dose (Day 49)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Serious adverse event rate
Time Frame: 0-6 months
Report and analyse serious adverse events
0-6 months
Adverse events rate
Time Frame: 0-21days following vaccinations
Analyse the incidence of adverse events following vaccination, both solicited and unsolicited
0-21days following vaccinations

Collaborators and Investigators

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

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)

October 8, 2021

Primary Completion (Anticipated)

June 30, 2022

Study Completion (Anticipated)

June 30, 2022

Study Registration Dates

First Submitted

October 4, 2021

First Submitted That Met QC Criteria

October 6, 2021

First Posted (Actual)

October 12, 2021

Study Record Updates

Last Update Posted (Actual)

October 22, 2021

Last Update Submitted That Met QC Criteria

October 20, 2021

Last Verified

October 1, 2021

More Information

Terms related to this study

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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