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Vaccine ReactionPhase 4INFLUOMICSNCT05154383

Effect of High-Dose Quadrivalent Influenza Vaccine (Efluelda®) Versus Standard-Dose (QIV-SD), in Subjects 65 Years of Age and Older on Innate Immunity, Including Gene Expression

A Phase 4 study testing Experimental arm : High-Dose Quadrivalent Influenza Vaccine (Efluelda) and Active Comparator: Standard-Dose Quadrivalent Influenza Vaccine in people with Vaccine Reaction, run by Centre Hospitalier Annecy Genevois at 2 sites in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the study is to evaluate innate and adaptive immunity following QIV-HD vaccination compared to QIV-SD vaccination in people 65 years of age and older. Read more about this study

Who is it for?
Ages 65 years and olderHealthy volunteers can take part
Conditions the study is for
Vaccine Reaction
What is being tested?
Experimental arm : High-Dose Quadrivalent Influenza Vaccine (Efluelda) and Active Comparator: Standard-Dose Quadrivalent Influenza Vaccine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
2 sitesFrance
Study dates
15 Nov 2021to 21 Jul 2022
Phase
Phase 4
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 65 years and older
  • All sexes
  • Healthy volunteers accepted
  • Older adult

Who may be able to join

  • Aged 65 years or older, the day of inclusion;
  • Have signed and dated Informed Consent Form;
  • Able and willing to attend all scheduled visits, and to comply with study procedures;
  • Covered by French health insurance.
  • Non-Inclusion Criteria :
  • Any vaccine injection (including COVID-19 vaccine) in the 4 weeks preceding study inclusion;
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  • Plan to receive any vaccine (including COVID-19 vaccine) in the 4 weeks following study inclusion;
  • Already vaccinated against influenza for 2021-2022 season;
  • Hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the vaccines used in the study or to a vaccine containing any of the same substances;
  • HIV infection;
  • Active Hepatitis B, or active Hepatitis C;
  • Previous Guillain Barré syndrome;
  • Ongoing immunosuppressive treatment or active immunodeficiency;
  • Receipt of immune globulins, blood or blood-derived products in the past 3 months;
  • Thrombocytopenia or bleeding disorder, receipt of anticoagulants contraindicating IM vaccination based on investigator's judgment;
  • Influenza-like illness symptoms, including COVID-19, within 4 weeks before study inclusion;
  • Personnes referred to in articles L1121-6 and L1121-8 of Public Health Code (persons deprived of liberty by judicial or administrative decision and persons subject to a legal protection measure: guardianship or curatorship).

Who cannot join

  • Any subject presenting with influenza-like illness symptoms, including COVID-19 between inclusion (visit 1) and randomization (visit 2);
  • Subject unable to attempt visit at Day 0 (visit 2) and Day 1 (visit 3);
  • Blood sample at Day 0 (visit 2) impossible to obtain;
  • Receipt of vaccine injection or equivalent between inclusion (visit 1) and randomization (visit 2), other than those allowed and planned in the study. This includes non-study dose of 2021-2022 influenza vaccine, blood-derived immune globulins, blood, or blood-derived products.
  • Any unexpected event relevant to the physician in charge, after discussion with the coordinating investigator and the sponsor

Trial locations and contacts

2 sites in 1 country.

France2 sites
  • Centre Hospitalier Annecy Genevois

    Annecy, 74370

  • Centre Hospitalier Métropole Savoie

    Chambéry

Other trials in France

About this study

The purpose of the study is to evaluate innate and adaptive immunity following QIV-HD vaccination compared to QIV-SD vaccination in people 65 years of age and older.

Read the detailed description

The hypothesis is that higher dose of antigen can increase the intensity and the quality of innate immunity, as the adaptive humoral and cellular responses.

In this study, the objectif is to evaluate innate and adaptive immunity following QIV-HD vaccination compared to QIV-SD vaccination in people 65 years of age and older.

Modifications of early blood molecular (transcriptome) and cellular (blood phenotyping) signatures within the first 24 hours following vaccination will be investigated. The association between early gene signature and late influenza-specific humoral immune responses weeks/months after vaccination will be also assessed.

This study is a hase IV, randomized, open-label, active-controlled, multi-center study comparing the immune response induced by QIV-HD vaccine (intervention) and QIV-SD vaccine (control).

Being tested
Experimental arm : High-Dose Quadrivalent Influenza Vaccine (Efluelda), Active Comparator: Standard-Dose Quadrivalent Influenza Vaccine

What participants receive

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

  • Experimental arm : High-Dose Quadrivalent Influenza Vaccine (Efluelda)Biological

    Patient will received one dose of High Dose Quadrivalent Influenza Vaccine according to marketing authorization.

  • Active Comparator: Standard-Dose Quadrivalent Influenza VaccineBiological

    Patient will received one dose of Standard Dose Quadrivalent Influenza Vaccine according to marketing authorization.

Study groups in NCT05154383
Study groupRoleWhat they receive
High-Dose Quadrivalent Influenza VaccineExperimentalOne injection of the high-dose Efluelda vaccine will be given to the patient
Receives: Biological: Experimental arm : High-Dose Quadrivalent Influenza Vaccine (Efluelda)
Standard-Dose Quadrivalent Influenza VaccineActive comparatorOne injection of the standard-dose Influvactetra vaccine will be given to the patient
Receives: Biological: Active Comparator: Standard-Dose Quadrivalent Influenza Vaccine

What is being measured

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

  1. Change of Transcriptomic profiles

    Transcriptomic profiles of blood cells (microarrays) will be performed to measure early systemic innate immune response

    Measured: Change from Baseline Transcriptomic profiles at day after vaccine injection (Day 1)

  2. Change of Innate cellular phenotyping

    Innate cellular phenotyping will be performed using 36 surface markers deciphering lineage cells monocytes, neutrophils, NK, antigen-presenting cells.

    Measured: Change from Baseline Innate cellular phenotyping at day after vaccine injection (Day 1)

  3. Change of Gene signature

    Study of the transcriptional profile of the blood cells by microarrays

    Measured: Change from Baseline Gene signature at day after vaccine injection (Day 1)

  4. Humoral immune responses

    HAI titers, Individual HAI titers ratio, Subjects with titers ≥ 40, Seroconversion

    Measured: Day 0, Day 21, Day 90 and Day 210 time

Timeline

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

  1. First posted13 Dec 2021
  2. Study start15 Nov 2021
  3. Primary completion21 Jul 2022
  4. Study completion21 Jul 2022

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05154383
Sponsor's protocol ID
21-05
Acronym
INFLUOMICS
Status last verified
Nov 2021
First submitted
3 Nov 2021
Last updated
8 Aug 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Experimental arm : High-Dose Quadrivalent Influenza Vaccine (Efluelda) and Active Comparator: Standard-Dose Quadrivalent Influenza Vaccine in people with Vaccine Reaction, run by Centre Hospitalier Annecy Genevois at 2 sites in France.

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 17 inclusion and 5 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: finished, as of the sponsor's last update on 8 Aug 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in France. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Change of Transcriptomic profiles (time frame: Change from Baseline Transcriptomic profiles at day after vaccine injection (Day 1)). The study lists 4 primary outcomes in all. 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 8 Aug 2022.

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