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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT02296359
Other study ID # 14-848FM
Secondary ID
Status Terminated
Phase N/A
First received November 18, 2014
Last updated August 12, 2015
Start date October 2014
Est. completion date August 2015

Study information

Verified date August 2015
Source Michigan State University
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug Administration
Study type Observational

Clinical Trial Summary

Respiratory viruses are known to be risk factors for asthma (e.g respiratory syncytial viruses, RSVs, and Human Rhinoviruses, HRVs, may induce bronchiolitis, and wheezing illnesses respectively). The common flu is also known to be a risk factor and the Centers for Disease Control and Prevention (CDC) recommends that asthmatics receive the annual flu vaccine, as a high-risk group for related asthma exacerbations. The investigators will be evaluating the variation in individual responses over time after controlled immune activation following influenza vaccination of monozygotic twins, both discordant for asthma, and concordant non-asthmatic. The transition from initial healthy to immune-system activated physiological states post vaccination will provide unprecedented molecular (omics) data on the molecular dynamics of immune response to vaccination, and novel insight into the flu response. The investigators will infer novel networks and pathways and as well as the dynamics of genes and mechanisms involved in asthma, flu vaccination, and individual responses, and correlate them to evaluated personalized genetic risks in the same study. The investigators will be able to also contrast the vaccination response in asthmatic and non-asthmatic individuals, in a longitudinal approach which has never been performed before using multiple-omics that included an immunization response.


Description:

Asthma pathogenesis and exacerbations have been associated to multiple risk factors, particularly respiratory viruses. In children respiratory syncytial viruses (RSVs) may induce bronchiolitis, and Human Rhinoviruses (HRVs) also may induce wheezing illnesses. RSVs and HRVs are age dependent risk factors for asthma, with the influenza virus also considered a prominent risk factor in adults. The Center for Disease Control recommends influenza vaccination in asthmatics annually. Both HRV and RSV infections were detected in a pilot integrative personal omics investigation, and provided a unique temporal expression signature in the non-asthmatic subject, with the involvement of a common set of antigen and defense response genes, as well as immune related pathways. These observed patterns in addition to the results of the vaccination study will be used as a guide, to find differences in healthy versus asthmatic patients' pathway activations which will provide insights into the genes and mechanisms involved in asthma pathogenesis and immune response to influenza vaccination. The twin paradigm will allow us to control for multiple confounding factors and focus on the individual genetic and possible epigenetic variation. The investigators will be able to infer novel networks and pathways and get into the genes and mechanisms involved in asthma, flu vaccination, and individual responses, while evaluating personalized genetic risks compared to medical history in the same study.

Our primary investigation involves integrative multi-omics monitoring of individual monozygotic twins, healthy or discordant for asthma, following their flu vaccination, over a period of two annual vaccination cycles. The investigators will be collecting blood samples from monozygotic twin volunteers, for multiple time-points post influenza vaccination. The measurements will be repeated the following year after a second vaccination. Genomic sequencing will be used to evaluate the volunteer's genomic risks based on variants with known disease association. Full transcriptome (via RNA-Sequencing), proteome and metabolome profiling (via mass spectrometry) will be performed per time-point, as well as cytokine profiling. This will allow the dynamic monitoring of thousands of molecular components and their responses to vaccination, capturing both the initial innate response reaction in addition to the adaptive response and return to baseline. The study involves following responses in blood and saliva components after influenza vaccination. Two annual vaccinations will be considered, one per year for 2 years, and at 8 time points samples will be collected.

This study involves a simple blood draw, saliva collection, standard FDA-approved influenza vaccine administration and Spirometry.


Recruitment information / eligibility

Status Terminated
Enrollment 1
Est. completion date August 2015
Est. primary completion date August 2015
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 18 Years to 80 Years
Eligibility Inclusion Criteria:

Volunteers are eligible to participate in this study if both they and their twin sibling have agreed to participate. If after their enrollment in the study, one of the twin siblings decides to withdraw, then:

1. If one sibling withdraws during Year 1, the other sibling will be allowed to continue their participation in the study and to complete the current study Year. However they will not be included in the randomly selected applicants that will continue participation in Year 2 of the study.

2. If one sibling withdraws duringYear2, the other sibling will be able to conclude Year2 study activities. -

Exclusion Criteria:

1. Volunteer is under18.

2. Presence of any medical conditions that the study investigators believe will affect participation in the study or its results.

3. Presence of a mental incapacity and/or cognitive impairment that would prevent a subject from adequately understanding, or cooperating with, the study protocol.

4. Volunteers with any severe allergies (life-threatening) or that have ever had a life-threatening allergic reaction after a dose of flu vaccine, or have a known severe allergy to any part of this vaccine, will be advised not to participate.

5. If a potential subject has ever had Guillain-Barré Syndrome (a severe paralyzing illness, also called GBS), they will be advised not to get the influenza vaccine and be excluded from this study.

- For female participants If they are already enrolled and become pregnant during this study, the investigators will temporarily withdraw them from the study from the day they become pregnant. If they would like to stay in the study, the investigators may continue their participation after their delivery.

- If participants are not feeling well on the scheduled day of vaccination the investigators will suggest that they postpone the vaccination until they feel better. If they agree, the vaccination will be re-scheduled for a later date.

Study Design

Observational Model: Case Control, Time Perspective: Prospective


Related Conditions & MeSH terms


Intervention

Biological:
Influenza Vaccination
The individuals will be followed to observe their immune system activation, following their vaccination with the standard influenza vaccine approved for the year by the FDA.

Locations

Country Name City State
United States Clinical and Translational Science Institute East Lansing Michigan

Sponsors (1)

Lead Sponsor Collaborator
Michigan State University

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Integrated Omics profile The study will construct RNA-expression, protein profiles and small molecule profiles on immune cells as these change over time prior to and following immune activation by the vaccine. The collective temporal patterns will be used to classify immune response all time points (8 per year for 2 years per subject) No
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