Early Immune Responses to Inactivated Influenza Vaccine: a Pilot Study

March 14, 2019 updated by: Johns Hopkins Bloomberg School of Public Health

A Pilot Study to Examine the Early Cytokine Responses After Inactivated Influenza Vaccination in Adults 18-50.

Some people experience symptoms just after receiving the seasonal inactivated influenza vaccine. The cause of some of these symptoms is likely to be an immune response to the vaccine. The investigators would like to look at the earliest immune responses to the inactivated influenza vaccine. This pilot study will help us to determine at what time points we should look.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Not Applicable

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

  • United States
    • Maryland
      • Baltimore, Maryland, United States, 21205
        • Johns Hopkins Center for Immunization Research

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

18 years to 50 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Age between 18-50 years.
  2. Good general health as a result of review of medical history and medications.
  3. Willingness to participate in the study as evidenced by signing informed consent document.
  4. Available for the duration of the trial.

Exclusion Criteria:

  1. Known to be pregnant.
  2. Medical, behavioral, cognitive or psychiatric disease that in the opinion of the investigator affects the ability of the participant to understand and cooperate with the study protocol.
  3. Severe allergy to eggs or any component of the influenza vaccine
  4. Previous receipt of the 2011-2012 season influenza vaccine
  5. Other condition that in the opinion of the investigator would jeopardize the safety or rights of a participant participating in the trial or would render the subject unable to comply with the protocol.
  6. History of receiving any investigational product within the past 30 days.
  7. Participant has had medical, occupational, or family problems as a result of alcohol or illicit drug use during the past 12 months.
  8. History of a severe allergic reaction or anaphylaxis.
  9. Pre-existing autoimmune or antibody-mediated diseases including but not limited to: systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, Sjögren's syndrome, or autoimmune thrombocytopenia.
  10. Known immunodeficiency syndrome.
  11. Use of chronic (≥14 days) oral or intravenous corticosteroids (excluding topical or nasal) at immunosuppressive doses (i.e. prednisone >10 mg/ day) or immunosuppressive drugs within 30 days of starting this study.
  12. Receipt of a live vaccine within past 4 weeks or a killed vaccine within past 2 weeks prior to entry into the study.
  13. History of a surgical splenectomy.
  14. Receipt of blood products within the past 6 months.
  15. Refusal to allow storage of samples for future research.

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: Basic Science
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Cohort 1
receives vaccine in morning. Blood drawn at 3, 7, 24, and 48 hours and 14 days after vaccination.
Biological: Trivalent Inactivated Influenza vaccine
0.5 ml IM once only
Active Comparator: Cohort 2
receives vaccine in evening, Blood drawn 16, 40 hours and 14 days after vaccination.
Biological: Trivalent Inactivated Influenza vaccine
0.5 ml IM once only

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Levels of Cytokine Interferon Gamma (IFN-gamma) Responses to Inactivated Influenza Vaccine
Time Frame: 0 hours, 16 hours, 24 hours, 14 days
This was an exploratory trial to look at the kinetics of early cytokine response to influenza vaccine. Serum collected was assessed for cytokines, and PBMCs may be assessed for innate and adaptive immune responses, as well as for genetic markers associated with immune responses to vaccination. Data for Cohort 1 reported as 0 hours and 24 hours. Data for Cohort 2 reported as 0 hours and 16 hours. Data was combined for the Cohorts and reported as 0 hours (baseline) and 14 days.
0 hours, 16 hours, 24 hours, 14 days
Levels of Cytokine Interleukin 8 (IL-8) Cytokine Response to Inactivated Influenza Vaccine
Time Frame: 0 hours, 16 hours, 24 hours, 14 days
This was an exploratory trial to look at the kinetics of early cytokine response to influenza vaccine. Serum collected was assessed for cytokines, and PBMCs may be assessed for innate and adaptive immune responses, as well as for genetic markers associated with immune responses to vaccination. Data for Cohort 1 reported as 0 hours and 24 hours. Data for Cohort 2 reported as 0 hours and 16 hours. Data was combined for the Cohorts and reported as 0 hours (baseline) and 14 days.
0 hours, 16 hours, 24 hours, 14 days
Levels of Cytokine Interferon Induced Gamma Protein (IP-10) Responses to Inactivated Influenza Vaccine
Time Frame: 0 hours, 16 hours, 24 hours, 14 days
This was an exploratory trial to look at the kinetics of early (1st 48 hours) cytokine response to influenza vaccine. Serum collected was assessed for cytokines, and PBMCs may be assessed for innate and adaptive immune responses, as well as for genetic markers associated with immune responses to vaccination. Data for Cohort 1 reported as 0 hours and 24 hours. Data for Cohort 2 reported as 0 hours and 16 hours. Data was combined for the Cohorts and reported as 0 hours (baseline) and 14 days.
0 hours, 16 hours, 24 hours, 14 days

Collaborators and Investigators

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

Sponsor

Johns Hopkins Bloomberg School of Public Health

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

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

January 1, 2012

Primary Completion (Actual)

February 1, 2012

Study Completion (Actual)

February 1, 2012

Study Registration Dates

First Submitted

January 27, 2012

First Submitted That Met QC Criteria

January 30, 2012

First Posted (Estimate)

January 31, 2012

Study Record Updates

Last Update Posted (Actual)

March 15, 2019

Last Update Submitted That Met QC Criteria

March 14, 2019

Last Verified

March 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CIR 281

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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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