B-cell Immunity to Influenza (SLVP017) - Years 2 (2010) & 3 (2011)

May 7, 2018 updated by: Cornelia L. Dekker, Stanford University

Protective Mechanisms Against a Pandemic Respiratory Virus. Project 1: B-cell Immunity to Influenza. Technical Development Project 1: Measuring the Immunome: Genomic Approaches to B-cell Repertoire - Years 2 (2010) & 3 (2011)

In this exploratory study, investigators will be looking at immune response differences between age groups and between the two different influenza vaccines given to identical twins, vaccine-naive young adults and elderly participants.

Study Overview

Status

Completed

Conditions

Detailed Description

This is an exploratory study of healthy children and adults who are given either standard trivalent, inactivated influenza vaccine (TIV) or live, attenuated influenza vaccine (LAIV). There are no exclusions for gender, ethnicity or race. Following confirmation of written informed consent, baseline blood samples will be drawn from all study participants prior to immunization. The volunteers enrolled in any the three groups (A,B,C) cannot have been immunized with previous year's seasonal influenza vaccine. The identical twins in Groups A will be randomized to each receive a different vaccine (TIV or LAIV) than their twin. The non-twin children in Group B will also be randomly assigned to receive either TIV or LAIV. Non-twin elderly adults in Group C will be given standard TIV. All participants will receive a single dose of their assigned influenza vaccine, either by intramuscular (IM) injection (TIV) or intranasal application (LAIV).

Study Type

Interventional

Enrollment (Actual)

91

Phase

  • Phase 4

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

8 years to 100 years (ADULT, OLDER_ADULT, CHILD)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Healthy, ambulatory 8-17 year old identical twins, 8-30 year old non-twins, or 70-100 year old elderly non-twin adults.
  2. Willing to complete the informed consent process.
  3. Availability for follow-up for the planned duration of the study at least 28 days after immunization.
  4. Acceptable medical history by medical history and vital signs.

Exclusion Criteria:

  1. Prior vaccination with seasonal TIV or LAIV or H1N1.
  2. Prior off-study vaccination with the current seasonal TIV or LAIV
  3. Allergy to egg or egg products, or to vaccine components
  4. Life-threatening reactions to previous influenza vaccinations
  5. Asthma or history of wheezing
  6. Active systemic or serious concurrent illness, including febrile illness on the day of vaccination
  7. History of immunodeficiency (including HIV infection)
  8. Known or suspected impairment of immunologic function, including, but not limited to, clinically significant liver disease, diabetes mellitus treated with insulin, moderate to severe renal disease, or any other chronic disorder which, in the opinion of the investigator, might jeopardize volunteer safety or compliance with the protocol.
  9. Blood pressure >150 systolic or >95 diastolic at first study visit
  10. Hospitalization in the past year for congestive heart failure or emphysema.
  11. Chronic Hepatitis B or C.
  12. Recent or current use of immunosuppressive medication, including systemic glucocorticoids (corticosteroid nasal sprays and topical steroids are permissible in all groups; inhaled steroid use is not permissible except for non-LAIV Group C only). Use of oral steroids (<20mg prednisone-equivalent/day) may be acceptable for volunteers 70-100 yrs of age after review by the investigator.
  13. Participants in close contact with anyone who has a severely weakened immune system should not receive LAIV (Groups A and B only)
  14. Malignancy, other than squamous cell or basal cell skin cancer (includes solid tumors such as breast cancer or prostate cancer with recurrence in the past year, and any hematologic cancer such as leukemia).
  15. Autoimmune disease (including rheumatoid arthritis treated with immunosuppressive medication such as Plaquenil, methotrexate, prednisone, Enbrel) which, in the opinion of the investigator, might jeopardize volunteer safety or compliance with the protocol.
  16. History of blood dyscrasias, renal disease, or hemoglobinopathies requiring regular medical follow up or hospitalization during the preceding year
  17. Use of any anti-coagulation medication such as Coumadin or Lovenox, or anti-platelet agents such as aspirin (except up to 325 mg. per day), Plavix, or Aggrenox must be reviewed by investigator to determine if this would affect the volunteer's safety.
  18. Receipt of blood or blood products within the past 6 months
  19. Medical or psychiatric condition or occupational responsibilities that preclude participant compliance with the protocol
  20. Inactivated vaccine 14 days prior to vaccination
  21. Live, attenuated vaccine within 60 days of vaccination
  22. History of Guillain-Barré Syndrome
  23. Pregnant or lactating woman
  24. Use of investigational agents within 30 days prior to enrollment
  25. Donation of the equivalent of a unit of blood within 6 weeks prior to enrollment
  26. Any condition which, in the opinion of the investigator, might interfere with volunteer safety, study objectives or the ability of the participant to understand or comply with the study protocol.

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: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
OTHER: Group A: 8-17 yo identical twins
Group A: 8-17 year-old identical twin pairs randomly assigned to Fluzone (trivalent, inactivated influenza vaccine (TIV)) or FluMist (live, attenuated influenza vaccine (LAIV)) within the pair
Influenza Virus Vaccine Suspension for Intramuscular Injection
Influenza Virus Vaccine Live, Intranasal Intranasal Spray
OTHER: Group B: 8-30 yo non-twin
Group B: 8-30 years old non-twin individuals randomly assigned to Fluzone (trivalent, inactivated influenza vaccine (TIV)) or FluMist (live, attenuated influenza vaccine (LAIV))
Influenza Virus Vaccine Suspension for Intramuscular Injection
Influenza Virus Vaccine Live, Intranasal Intranasal Spray
OTHER: Group C: 70-100 yo non-twin
Group C: 70-100 years old non-twin elderly adults given Fluzone (trivalent, inactivated influenza vaccine (TIV))
Influenza Virus Vaccine Suspension for Intramuscular Injection

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Number of Participants Who Received Influenza Vaccine
Time Frame: Day 0 to 28
Day 0 to 28

Secondary Outcome Measures

Outcome Measure
Time Frame
Number of Participants With Related Adverse Events
Time Frame: Day 0 to 28 post-immunization
Day 0 to 28 post-immunization

Other Outcome Measures

Outcome Measure
Time Frame
Investigate the Effects of Different Influenza Vaccines, Including Live Attenuated Vaccine (LAIV) and Inactivated Vaccine Delivered by Different Routes (Intranasal and IM), on B-cell Responses.
Time Frame: Day 0 to 28
Day 0 to 28

Collaborators and Investigators

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

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.

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

September 1, 2010

Primary Completion (ACTUAL)

December 1, 2011

Study Completion (ACTUAL)

December 1, 2011

Study Registration Dates

First Submitted

January 11, 2017

First Submitted That Met QC Criteria

January 11, 2017

First Posted (ESTIMATE)

January 13, 2017

Study Record Updates

Last Update Posted (ACTUAL)

June 6, 2018

Last Update Submitted That Met QC Criteria

May 7, 2018

Last Verified

May 1, 2018

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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