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AzTrials

TransplantationPhase 4NCT02560909

Adjuvanted Influenza Vaccine in Stem Cell Transplant

A Phase 4 study testing FLUAD® influenza vaccine and FLUVIRAL® in people with Transplantation and Influenza Vaccines, run by University Health Network, Toronto.

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

Influenza virus is an important cause of morbidity in the transplant population and can lead to viral and bacterial pneumonia. Although the annual influenza vaccine is recommended for transplant patients, studies have shown that nonadjuvanted vaccine has poor immunogenicity. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Transplantation, Influenza Vaccines
What is being tested?
FLUAD® influenza vaccine and FLUVIRAL®
Could I receive a placebo?
No, everyone receives an active treatment
How many people
73 participants
Where
No sites listed yet
Study dates
Oct 2015to Aug 2016
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age ≥ 18
  • Greater than 3 months post-transplant
  • Allogeneic HSCT

Who cannot join

  • Has already received influenza vaccination for 2015-2016 season
  • Egg allergy
  • Previous life-threatening reaction to influenza vaccine (i.e. Guillain Barre Syndrome)
  • Febrile illness in the past one week
  • Receipt of intravenous immunoglobulin (IVIG) in the past 30 days or planning to receive IVIG in the next 4 weeks
  • Unable to provide informed consent
  • Unable to comply with study protocol

About this study

Official title: A Randomized Controlled Trial Comparing Adjuvanted vs. Nonadjuvanted Influenza Vaccine in Adult Allogeneic Hematopoietic Stem Cell Transplant (HSCT) Recipients.

Influenza virus is an important cause of morbidity in the transplant population and can lead to viral and bacterial pneumonia. Although the annual influenza vaccine is recommended for transplant patients, studies have shown that nonadjuvanted vaccine has poor immunogenicity. There are no studies that define the effect of adjuvanted vaccine in this population. The purpose of this study is to determine if a vaccination with FLUAD® results in improved immunogenicity as compared to standard vaccine in allo-HSCT recipients. Immunogenicity will be assessed by standard quantitative antibody titer assessments and using cell-mediated immunity measurements.

Read the detailed description

The investigators plan to study the immunogenicity of two different types of the influenza vaccine in 240 allogeneic stem cell transplant patients during the 2015-2016 season. Patients will be randomized to receive either adjuvanted influenza vaccine or nonadjuvanted. Antibody titers will be evaluated by a standard hemagglutination inhibition assay. The investigators hypothesize that the patients who receive the adjuvanted influenza vaccine will reach significantly higher response to the vaccine. This study advances research on the prevention of serious viral infections in transplant recipients.

Results from this study have the potential to directly improve patient care. If the use of the adjuvanted influenza vaccine is successful, this strategy may lead to a significant reduction in burden of disease, hospitalizations, and long-term morbidity.

The co-administration of vaccine with an adjuvant is a potentially promising method of boosting immunogenicity. Two adjuvants have been used in influenza vaccines: AS03 and MF59. Both are oil-in-water emulsions. AS03 was used in the monovalent pandemic A/H1N1 vaccine in Canada and Europe. Adjuvanted vaccines have been studied in the hematopoietic stem cell transplant population with most studies done in using the AS03-adjuvanted pandemic vaccine. MF59 adjuvant has been used in seasonal influenza vaccine in Canada and Europe for people ≥65 years old. MF59-adjuvanted vaccines have not been well studied in hematopoietic stem cell transplantation but could represent a significant advance if they show greater immunogenicity than the standard non-adjuvanted influenza vaccine. Both FLUAD® and the standard 2015-2016 nonadjuvanted vaccine will contain 15 microgram antigen from each strain and will be injected in a standard dose (0.5 mL) in the deltoid muscle by trained personnel.

Being tested
FLUAD® influenza vaccine, FLUVIRAL®
Medical subject headings
Influenza, Human

What participants receive

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

  • FLUAD® influenza vaccineBiological

    Also called MF59 adjuvanted vaccine

    MF59 adjuvant has been used in seasonal influenza vaccine in Canada and Europe for people ≥65 years. MF59 contains squalene, polysorbate 80, and sorbitan trioleate. It is packaged as small microvesicles of 160nm diameter. The complete mechanism of action of MF59 is not well understood but requires activation of the innate immune system; the adjuvant exerts a local inflammatory response increasing the influx of neutrophils and macrophages to the injection site.

  • FLUVIRAL®Biological

    Also called Trivalent Influenza Vaccine

    Standard 2015-2016 nonadjuvanted vaccine

Study groups in NCT02560909
Study groupRoleWhat they receive
ExperimentalExperimentalThe experimental group will receive one dose MF59 adjuvanted intramuscular vaccine.
Receives: Biological: FLUAD® influenza vaccine
ControlActive comparatorThe control group will receive one dose of the standard 2015-2016 nonadjuvanted vaccine.
Receives: Biological: FLUVIRAL®

What is being measured

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

  1. Rates of seroconversion

    serological response with a four-fold or greater increase in HI antibody titers to an antigen

    Measured: 4 weeks from vaccination

Secondary outcomes (3)
  1. Rates of seroprotection

    HIA titers of >=1:40

    Measured: 4 weeks from vaccination

  2. Rate of Local and systemic adverse events to vaccination

    Measured: within 7 days of vaccination

  3. Number of participants with microbiologically-documented influenza infection

    confirmed by direct fluorescent antibody, viral culture, or PCR

    Measured: 6 months from vaccination

Timeline

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

  1. First posted25 Sep 2015 (estimated)
  2. Study startOct 2015
  3. Primary completionFeb 2016
  4. Study completionAug 2016

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
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
73 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02560909
Sponsor's protocol ID
15-9503
Status last verified
Apr 2017
First submitted
3 Sep 2015
Last updated
10 Apr 2017
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 FLUAD® influenza vaccine and FLUVIRAL® in people with Transplantation and Influenza Vaccines, run by University Health Network, Toronto.

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: finished, as of the sponsor's last update on 10 Apr 2017. Status can change between updates, so confirm with the study contact before making plans.

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?

Rates of seroconversion (time frame: 4 weeks from vaccination). 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 10 Apr 2017.

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