NCT03020498

Brief Summary

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.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
91

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Sep 2010

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2010

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2011

Completed
5.1 years until next milestone

First Submitted

Initial submission to the registry

January 11, 2017

Completed
2 days until next milestone

First Posted

Study publicly available on registry

January 13, 2017

Completed
2 months until next milestone

Results Posted

Study results publicly available

March 9, 2017

Completed
Last Updated

June 6, 2018

Status Verified

May 1, 2018

Enrollment Period

1.2 years

First QC Date

January 11, 2017

Results QC Date

January 13, 2017

Last Update Submit

May 7, 2018

Conditions

Keywords

Inactivated influenza vaccineLive, attenuated influenza vaccineChild identical twins and non-twinsYoung and elderly non-twin adults

Outcome Measures

Primary Outcomes (1)

  • Number of Participants Who Received Influenza Vaccine

    Day 0 to 28

Secondary Outcomes (1)

  • Number of Participants With Related Adverse Events

    Day 0 to 28 post-immunization

Other Outcomes (1)

  • 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.

    Day 0 to 28

Study Arms (3)

Group A: 8-17 yo identical twins

OTHER

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

Biological: FluzoneBiological: FluMist

Group B: 8-30 yo non-twin

OTHER

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))

Biological: FluzoneBiological: FluMist

Group C: 70-100 yo non-twin

OTHER

Group C: 70-100 years old non-twin elderly adults given Fluzone (trivalent, inactivated influenza vaccine (TIV))

Biological: Fluzone

Interventions

FluzoneBIOLOGICAL

Influenza Virus Vaccine Suspension for Intramuscular Injection

Group A: 8-17 yo identical twinsGroup B: 8-30 yo non-twinGroup C: 70-100 yo non-twin
FluMistBIOLOGICAL

Influenza Virus Vaccine Live, Intranasal Intranasal Spray

Group A: 8-17 yo identical twinsGroup B: 8-30 yo non-twin

Eligibility Criteria

Age8 Years - 100 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

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

You may not qualify if:

  • Prior vaccination with seasonal TIV or LAIV or H1N1.
  • Prior off-study vaccination with the current seasonal TIV or LAIV
  • Allergy to egg or egg products, or to vaccine components
  • Life-threatening reactions to previous influenza vaccinations
  • Asthma or history of wheezing
  • Active systemic or serious concurrent illness, including febrile illness on the day of vaccination
  • History of immunodeficiency (including HIV infection)
  • 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.
  • Blood pressure \>150 systolic or \>95 diastolic at first study visit
  • Hospitalization in the past year for congestive heart failure or emphysema.
  • Chronic Hepatitis B or C.
  • 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.
  • Participants in close contact with anyone who has a severely weakened immune system should not receive LAIV (Groups A and B only)
  • 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).
  • 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.
  • +11 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (4)

  • Sasaki S, Holmes TH, Albrecht RA, Garcia-Sastre A, Dekker CL, He XS, Greenberg HB. Distinct cross-reactive B-cell responses to live attenuated and inactivated influenza vaccines. J Infect Dis. 2014 Sep 15;210(6):865-74. doi: 10.1093/infdis/jiu190. Epub 2014 Mar 27.

    PMID: 24676204BACKGROUND
  • He XS, Holmes TH, Sanyal M, Albrecht RA, Garcia-Sastre A, Dekker CL, Davis MM, Greenberg HB. Distinct patterns of B-cell activation and priming by natural influenza virus infection versus inactivated influenza vaccination. J Infect Dis. 2015 Apr 1;211(7):1051-9. doi: 10.1093/infdis/jiu580. Epub 2014 Oct 21.

    PMID: 25336731BACKGROUND
  • Brodin P, Jojic V, Gao T, Bhattacharya S, Angel CJ, Furman D, Shen-Orr S, Dekker CL, Swan GE, Butte AJ, Maecker HT, Davis MM. Variation in the human immune system is largely driven by non-heritable influences. Cell. 2015 Jan 15;160(1-2):37-47. doi: 10.1016/j.cell.2014.12.020.

    PMID: 25594173BACKGROUND
  • de Bourcy CFA, Dekker CL, Davis MM, Nicolls MR, Quake SR. Dynamics of the human antibody repertoire after B cell depletion in systemic sclerosis. Sci Immunol. 2017 Sep 29;2(15):eaan8289. doi: 10.1126/sciimmunol.aan8289.

MeSH Terms

Conditions

Influenza, Human

Interventions

Influenza VaccinesFluMist

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Viral VaccinesVaccinesBiological ProductsComplex Mixtures

Results Point of Contact

Title
Dr. Cornelia Dekker
Organization
Stanford University School of Medicine, Dept. of Pediatrics

Study Officials

  • Cornelia Dekker, MD

    Stanford University

    PRINCIPAL INVESTIGATOR
  • Harry Greenberg, MD

    Stanford University

    PRINCIPAL INVESTIGATOR
  • Stephen Quake, PhD

    Stanford University

    PRINCIPAL INVESTIGATOR
  • Xiaosong He, PhD

    Stanford University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Study Principal Investigator

Study Record Dates

First Submitted

January 11, 2017

First Posted

January 13, 2017

Study Start

September 1, 2010

Primary Completion

December 1, 2011

Study Completion

December 1, 2011

Last Updated

June 6, 2018

Results First Posted

March 9, 2017

Record last verified: 2018-05

Data Sharing

IPD Sharing
Will not share