AzTrials
AzTrials

Influenza VaccinePhase 4PCIRNRT09NCT01368796

Comparison of 4 Influenza Vaccines in Seniors

A Phase 4 study testing Agriflu, Fluad and Intanza in people with Influenza Vaccine, run by University of British Columbia at 8 sites in Canada.

Completed

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

Official record
Search all trials

Trial summary

Based on information from several years of looking at Influenza vaccination doctors know that: Older adults suffer the worst illness and most deaths caused by Influenza illness of all age groups. Read more about this study

Who is it for?
Ages 65 years and olderHealthy volunteers can take part
Conditions the study is for
Influenza Vaccine
What is being tested?
Agriflu, Fluad and Intanza
Could I receive a placebo?
No, everyone receives an active treatment
How many people
953 participants
Where
8 sitesCanada
Study dates
Jul 2011to May 2012
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

  • Written informed consent provided by the subject, who can be male or female
  • Subjects who the investigator believes can and will comply with the requirements of the protocol (i.e. return for follow-up visits, record safety observations and able to converse with study personnel including by personal telephone)
  • Age 65 years or older at Visit 1
  • Generally good health (stable chronic conditions acceptable), living independently or with minimal assistance (Clinical Frailty score 1-5) (33) and able to attend clinic appointments
  • Receipt of at least one dose of TIV within the previous 2 influenza seasons, documented by written record or attested by a confident personal recollection. This refers to the trivalent seasonal vaccine, not the H1N12009 pandemic vaccine.

Who cannot join

  • receipt of non-study influenza vaccine for 2011-12
  • receipt of any live vaccine within 4 weeks or inactivated vaccine within one week of Visit 1 or planned administration of any non-study vaccines between Visits 1 and 2
  • systemic hypersensitivity to influenza vaccine, hen's eggs or other vaccine constituent (eg neomycin sulphate, kanamycin, formalin)
  • severe reaction to any previous influenza vaccine or vaccine component
  • bleeding disorder, including anticoagulant therapy or thrombocytopenia, that contraindicates IM injection or blood collection (does not include daily low-dose ASA).
  • incapacity to provide fully informed consent or be attentive to follow-up observations, resulting from cognitive impairment, abuse of alcohol, drug addiction
Show all 12Show fewer
  • lack of telephone access, inadequate fluency in English (or French in applicable jurisdictions), uncertain availability during the 3 week study participation period or for the 6 month follow-up visit
  • immune compromise resulting from disease or immunosuppressive systemic medication use within 3 months of V1
  • receipt of blood or blood product within 3 months of V1
  • unstable medical condition, as indicated by a requirement for hospitalization or a substantial medication change to stabilize said condition within previous 3 months
  • Clinical Frailty score of 6-7 (moderately frail or severely frail)
  • history of Guillain-Barré syndrome

Trial locations and contacts

8 sites in 1 country.

8 sites in 1 country

Canada8 sites
  • Canadian Centre for Vaccinology Dalhousie University

    Halifax, Nova Scotia

  • McMaster University

    Hamilton, Ontario

  • McGill University Health Center - Vaccine Study Center

    Montreal, Quebec

  • The Ottawa Hospital Research Institute, University of Ottawa

    Ottawa, Ontario

  • Unité de Recherche en Santé Publique (CHUQ),

    Québec, Quebec

  • University of Toronto, Mt Sinai Hospital

    Toronto, Ontario

  • University of British Columbia, VITALiTY Research Center

    Vancouver, British Columbia

  • University of Manitoba, Department of Medicine

    Winnipeg, Manitoba

Other trials in Canada

About this study

Official title: Controlled Comparison in Canadian Seniors of Seasonal Influenza Vaccines for 2011-2012

Based on information from several years of looking at Influenza vaccination doctors know that:

  • Older adults suffer the worst illness and most deaths caused by Influenza illness of all age groups.
  • Older adults do not seem to get as good a level of protection as younger adults after getting the usual seasonal Influenza vaccine.
Read more

Because of this information doctors wonder if one of the new seasonal Influenza vaccines is more effective or more acceptable.

This study has been designed to answer some of these questions. On this study doctors will compare 2 new vaccines against the usual seasonal influenza vaccine for protectiveness using several different testing methods (including the usual tests) and for acceptability.

Read the detailed description

This study is prospective, multicenter, randomized, evaluator-blinded, controlled, parallel group study of 3 licensed seasonal influenza vaccine products conducted in seniors, with a 4th vaccine included in a substudy of cellular immune responses.

Ambulatory adults 65+ years of age, in good health or with stable health conditions, given TIV within the past 2 years, will be recruited in multiple Canadian centres. Subjects can be dwelling in the community or in centers providing minimal assisted living support. A total of 930 subjects will be enrolled.

Subjects will be centrally (electronically) randomized to receive either TIV, IDV or AIV on Day 0. Three blood samples will be collected (1 pre and 2 post vaccination) to measure HAI antibody responses to each virus strain (H1N1, H3N2 and B) in each vaccine, using standardized assays. Randomly selected subsets of sera from each study group will also be tested for neutralizing antibody and for cross-protection against drift variants of H3N2, H1N1 and B viruses. In a subset of subjects in Vancouver, randomization assignments will include TIV2 and extra blood samples will be obtained 0, 21 and 72 days post vaccination for CMI testing. Safety assessments will be conducted on Day 7, Day 21 and Day 180 following vaccination. Acceptability of each product, reflecting the frequency, severity and tolerability of adverse effects, will be assessed.

Being tested
Agriflu, Fluad, Intanza, Vaxigrip
Keywords
Vaccine, Influenza vaccine, Adjuvanted Influenza vaccine, Intradermal Influenza vaccine, Seniors, Acceptability of vaccines, Influenza
Medical subject headings
Influenza, Human

What participants receive

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

  • AgrifluBiological

    0.5mL dose IM vaccination

  • FluadBiological

    0.5mL dose of vaccine given IM

  • IntanzaBiological

    0.5mL dose vaccine given IM

  • VaxigripBiological

    0.5mL dose vaccine given IM

Study groups in NCT01368796
Study groupRoleWhat they receive
Trivalent Influenza vaccine subunitActive comparatorThe seasonal vaccine (Agriflu, Novartis) contains egg-derived, inactivated and detergent split versions of the 3 influenza strains (tri-valent). It is given into the muscle of the upper arm at a dose of 0.5 mL.
Receives: Biological: Agriflu
Adjuvanted Tri-valent Influenza VaccineActive comparatorThe adjuvanted vaccine (Fluad, Novartis) is made with an immune-stimulator (MF59) that contains squalene oil microdroplets and two surfactants, Tween 80 and Span 65. It is given into the muscle of the upper arm at a dose of 0.5 mL.
Receives: Biological: Fluad
Intradermal Tri-valent Influenza vaccineActive comparator(Intanza 15ug, Sanofi Pasteur) is an inactivated, split-virion influenza vaccine. Strains are grown in fertilized hen's eggs, inactivated with formalin and split using Triton X-100 detergent, as for TIV. The syringe is attached to a micro-needle injection system (Beckton Dickinson) that limits the depth of injection to just under the skin. It is given into the skin over the upper arm at a dose of 0.1 mL.
Receives: Biological: Intanza
Trivalent Split-virion Influenza vaccineActive comparatorVaxigrip, Sanofi Pasteur is an inactivated, split-virion Influenza vaccine. The 3 influenza strains are grown on fertilized eggs, concentrated, purified in a sugar-like solution, detergent split, and inactivated by formaldehyde, then diluted in phosphate buffered salt solution. A dose of 0.5 mL is given into the muscle of the arm.
Receives: Biological: Vaxigrip

What is being measured

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

  1. HAI response

    The primary outcome measures will be the 3-week post-vaccination immune (HAI) responses to the 3 vaccine strains present in each product, assessed by the EMEA/CHMP criteria for evaluation of immune responses to influenza vaccines in persons >60 years of age.

    Measured: Day 0; Day 21; Day 180

Secondary outcomes (2)
  1. Seroprotection rates using microneutralization titres and cytokine testing

    As secondary immunologic outcomes seroprotection rates will be compared between the products using a higher titer (≥160) as threshold. Microneutralization titers will be compared among products at the 3 sampling points, using sera from 100 subjects per group. Cross-protection afforded by each vaccine against drift variants of H3N2, H1N1 and B viruses will be assessed using serum panels selected from 50 subjects in each group. Cellular immune responses elicited will be compared in subgroups of 30 subjects per vaccine in the CMI subjset.

    Measured: Day 0; Day 21; and Day 70

  2. Safety and Acceptability

    Safety and acceptability of the vaccines will also be examined and compared as the safety outcomes. The primary outcome measurements will be the rates of local adverse events (pain, redness, swelling, itchiness) as rates of general adverse events are not expected to differ substantially among the products.

    Measured: Days 0-6; Day 21; Day 70; and Day 180

Timeline

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

  1. First posted8 Jun 2011 (estimated)
  2. Study startJul 2011
  3. Primary completionDec 2011
  4. Study completionMay 2012

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
953 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01368796
Sponsor's protocol ID
H11-01457
Acronym
PCIRNRT09
Status last verified
Apr 2015
First submitted
6 Jun 2011
Last updated
15 Apr 2015
Results posted
No
Data monitoring committee
No

Publications

  • Skowronski DM, Janjua NZ, De Serres G, Purych D, Gilca V, Scheifele DW, Dionne M, Sabaiduc S, Gardy JL, Li G, Bastien N, Petric M, Boivin G, Li Y. Cross-reactive and vaccine-induced antibody to an emerging swine-origin variant of influenza A virus subtype H3N2 (H3N2v). J Infect Dis. 2012 Dec 15;206(12):1852-61. doi: 10.1093/infdis/jis500. Epub 2012 Aug 7.

    PubMed 22872731

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Agriflu, Fluad and Intanza in people with Influenza Vaccine, run by University of British Columbia at 8 sites in Canada.

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 5 inclusion and 12 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 15 Apr 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites in Canada. 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?

HAI response (time frame: Day 0; Day 21; Day 180). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01368796, which also lists 1 linked publication.

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 15 Apr 2015.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in