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IndividualityNCT02296359

Vaccination Response in Individual Monozygotic Twins

An observational study of Individuality and Asthma, run by Michigan State University at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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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). Read more about this study

Who is it for?
Ages 18 to 80 yearsHealthy volunteers can take part
What is being tested?
Influenza Vaccination
Type of treatment
Vaccines
How many people
1 participants
Where
1 siteUnited States
Study dates
Oct 2014to Aug 2015
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Monozygotic Twins over 18 years of age with and without asthma, without gender or ethnicity restrictions.

Who may be able to join

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

Who cannot join

  • Volunteer is under18.
  • Presence of any medical conditions that the study investigators believe will affect participation in the study or its results.
  • Presence of a mental incapacity and/or cognitive impairment that would prevent a subject from adequately understanding, or cooperating with, the study protocol.
  • 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.
  • 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.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Clinical and Translational Science Institute

    East Lansing, Michigan, 48824

Other trials in United States

About this study

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.

Read the detailed 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.

Being tested
Influenza Vaccination
Medical subject headings
Asthma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Influenza VaccinationBiological

    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.

Study groups in NCT02296359
Study groupRoleWhat they receive
Asthma Discordant Monozygotic TwinsThis is a group where one of the monozygotic twins has asthma and the other is non-asthmatic. Influenza Vaccination will be performed for both cohorts.
Receives: Biological: Influenza Vaccination
Non-Asthma Concordant Monozygotic TwinsThis is a group where both of the monozygotic twins are non-asthmatic. Influenza Vaccination will be performed for both cohorts.
Receives: Biological: Influenza Vaccination

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 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

    Measured: all time points (8 per year for 2 years per subject)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Nov 2014 (estimated)
  2. Study startOct 2014
  3. Primary completionAug 2015
  4. Study completionAug 2015

Why it stopped: Insufficient enrollment

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02296359
Sponsor's protocol ID
14-848FM
Status last verified
Aug 2015
First submitted
18 Nov 2014
Last updated
14 Aug 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Individuality and Asthma, run by Michigan State University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 14 Aug 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early (reason given: Insufficient enrollment). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Integrated Omics profile (time frame: all time points (8 per year for 2 years per subject)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Aug 2015.

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