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AzTrials

InfluenzaPhase 3NCT03391193

Immunogenicity and Safety of a Multi-Dose Quadrivalent Influenza Vaccine

A Phase 3 study testing Multi-dose Quadrivalent Influenza Vaccine and Single-dose Quadrivalent Influenza Vaccine in people with Influenza, run by Sanofi Pasteur, a Sanofi Company at 3 sites in Mexico.

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 aim of the study is to to assess the immunogenicity and safety of a quadrivalent influenza vaccine in a multi-dose presentation compared to a quadrivalent influenza vaccine in single-dose presentation, in children aged 6 months to 17 years. Read more about this study

Who is it for?
Ages 6 months to 17 yearsHealthy volunteers can take part
Conditions the study is for
Influenza
What is being tested?
Multi-dose Quadrivalent Influenza Vaccine and Single-dose Quadrivalent Influenza Vaccine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
301 participants
Where
3 sitesMexico
Study dates
19 Dec 2017to 25 Aug 2018
Phase
Phase 3
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 6 months to 17 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Aged 6 months to 17 years on the day of inclusion
  • Assent form has been signed and dated by the subject aged 7 to 17 years, and informed consent form has been signed and dated by the parent(s) or another legally acceptable representative and by an independent witness, if required by local regulations
  • Subject and parent / legally acceptable representative are able to attend all scheduled visits and to comply with all study procedures
  • Covered by health insurance, if required by local regulations

Who cannot join

  • Subject is pregnant, or lactating, or of childbearing potential and not using an effective method of contraception or abstinence from at least 4 weeks prior to vaccination until at least 4 weeks after vaccination. To be considered of non-childbearing potential, a female must be pre-menarche .
  • Participation at the time of study enrollment (or in the 4 weeks preceding the first study vaccination) or planned participation during the present study period in another clinical study investigating a vaccine, drug, device, or medical procedure
  • Receipt of any vaccine or planned receipt of any vaccine within the period from 2 weeks before the first study vaccination to 2 weeks following the last study vaccination
  • Previous vaccination against influenza (in the preceding 6 months) with either the study vaccine or another vaccine for subjects aged 9 to 17 years.
  • For subjects aged 6 months to 8 years:
  • Any influenza vaccination (from birth to the day of inclusion) with either the study vaccine or another vaccine
Show all 17Show fewer
  • Any previous laboratory confirmed influenza infection
  • Receipt of immune globulins, blood or blood-derived products in the past 3 months
  • Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months)
  • Known systemic 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
  • Laboratory-confirmed / self-reported / reported by the parent(s) / legally acceptable representative Thrombocytopenia, contraindicating IM vaccination
  • Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating IM vaccination
  • Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily
  • Current alcohol abuse or drug addiction
  • Chronic illness that, in the opinion of the investigator, is at a stage where it might interfere with study conduct or completion
  • Moderate or severe acute illness/infection (according to Investigator judgment) on the day of vaccination or febrile illness (temperature ≥ 38.0°C). A prospective subject should not be included in the study until the condition has resolved or the febrile event has subsided
  • Identified as Investigator or employee of the Investigator or study center with direct involvement in the proposed study, or identified as an immediate family member (i.e. parent, spouse, natural or adopted child) of the Investigator or employee with direct involvement in the proposed study.

Trial locations and contacts

3 sites in 1 country.

Mexico3 sites
  • Sanofi Pasteur Investigational Site 0001

    Cuernavaca, Morelos, 62290

  • Sanofi Pasteur Investigational Site 0002

    Ecatepec de Morelos, State of Mexico, 55075

  • Sanofi Pasteur Investigational Site 0003

    Mexico City, 04530

Other trials in Mexico

About this study

Official title: Immunogenicity and Safety of a Multi-Dose Quadrivalent Influenza Vaccine in Children Aged 6 Months to 17 Years

The aim of the study is to to assess the immunogenicity and safety of a quadrivalent influenza vaccine in a multi-dose presentation compared to a quadrivalent influenza vaccine in single-dose presentation, in children aged 6 months to 17 years.

Read the detailed description

Participants aged 9 to 17 years will receive one dose of either the multi-dose quadrivalent influenza vaccine or the quadrivalent influenza vaccine in a single-dose presentation and participants aged 6 months to 8 years will receive 2 doses of either vaccine, 28 days apart.

All participants will provide a pre-vaccination blood sample on Day 0 and a post-vaccination blood sample either on Day 28 (participants aged 9 to 17 years) or on Day 56 (participants aged 6 months to 8 years) for immunogenicity testing.

All participants will be followed for safety evaluation up to 6 months after the last vaccination.

Conditions
Influenza
Being tested
Multi-dose Quadrivalent Influenza Vaccine, Single-dose Quadrivalent Influenza Vaccine
Keywords
Influenza, Quadrivalent Inactivated Influenza Vaccine, Multi-dose Presentation
Medical subject headings
Influenza, Human

What participants receive

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

  • Multi-dose Quadrivalent Influenza VaccineBiological

    0.5 mL, intramuscular

  • Single-dose Quadrivalent Influenza VaccineBiological

    Also called VaxigripTetra

    0.5 mL, intramuscular

Study groups in NCT03391193
Study groupRoleWhat they receive
Multi-dose Quadrivalent Influenza VaccineExperimentalQuadrivalent influenza vaccine (split-virion, inactivated, 2017-2018 formulation, thiomersal containing) in multi-dose presentation. Participants aged 9 to 17 years will receive 1 dose and subjects aged 6 months to 8 years will receive 2 doses 28 days apart
Receives: Biological: Multi-dose Quadrivalent Influenza Vaccine
Single-dose Quadrivalent Influenza VaccineActive comparatorQuadrivalent influenza vaccine (split-virion, inactivated, 2017-2018 formulation, thiomersal free) in single-dose syringe presentation. Participants aged 9 to 17 years will receive 1 dose and subjects aged 6 months to 8 years will receive 2 doses 28 days apart
Receives: Biological: Single-dose Quadrivalent Influenza Vaccine

What is being measured

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

  1. Geometric Mean Titers (GMTs) of Antibodies after Vaccination with Multi-dose Quadrivalent Influenza Vaccine or Single-dose Quadrivalent Influenza Vaccine

    Anti-hemagglutinin (HA) antibody titers against the 4 influenza strains are assessed by a hemagglutination inhibition (HAI) assay

    Measured: Day 28 (post-last vaccination)

  2. GMT Ratio after Vaccination with Multi-dose Quadrivalent Influenza Vaccine or Single-dose Quadrivalent Influenza Vaccine

    Anti-HA antibody titers against the 4 influenza strains are assessed by an HAI assay. GMT ratio is assessed as the individual ratio of post-/pre-vaccination titers

    Measured: Day 28 (post-last vaccination)

  3. Seroconversion Rates after Vaccination with Multi-dose Quadrivalent Influenza Vaccine or Single-dose Quadrivalent Influenza Vaccine

    Anti-HA antibody titers against the 4 influenza strains are assessed by an HAI assay. Seroconversion is defined as either post-vaccination titer ≥ 40 (1/dil), or pre-vaccination titer ≥ 10 (1/dil) and ≥ 4-fold increase in post-vaccination titer

    Measured: Day 28 (post-last vaccination)

Secondary outcomes (1)
  1. Percentage of Participants Reporting Solicited Injection Site or Systemic Reactions after Vaccination with Multi-dose Quadrivalent Influenza Vaccine or Single-dose Quadrivalent Influenza Vaccine

    Solicited injection site reactions are tenderness/pain,erythema, swelling, induration, ecchymosis, and solicited systemic reactions are fever, vomiting, crying abnormal, drowsiness, appetite lost, irritability (for children ≤ 23 months), and fever, headache, malaise, myalgia, and shivering (for children 2 to 17 years)

    Measured: Day 0 (pre-vaccination) to Day 7 (after any vaccination)

Timeline

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

  1. First posted5 Jan 2018
  2. Study start19 Dec 2017
  3. Primary completion28 Mar 2018
  4. Study completion25 Aug 2018

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 3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
301 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03391193
Sponsor's protocol ID
GQM00016
Status last verified
Apr 2022
First submitted
21 Dec 2017
Last updated
25 Apr 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Multi-dose Quadrivalent Influenza Vaccine and Single-dose Quadrivalent Influenza Vaccine in people with Influenza, run by Sanofi Pasteur, a Sanofi Company at 3 sites in Mexico.

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 4 inclusion and 17 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 25 Apr 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Mexico. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

Geometric Mean Titers (GMTs) of Antibodies after Vaccination with Multi-dose Quadrivalent Influenza Vaccine or Single-dose Quadrivalent Influenza Vaccine (time frame: Day 28 (post-last vaccination)). The study lists 3 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 25 Apr 2022.

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