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Influenza Disease; FluPhase 2NCT00264576

Study of the Safety and Immunogenicity of an Influenza Vaccine Administered to Healthy Adults

A Phase 2 study testing Influenza Virus Vaccine in people with Influenza Disease; Flu, run by Novartis Vaccines at 4 sites in United States.

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 this study is to evaluate the safety and immunogenicity of cell culture-derived, inactivated, subunit influenza vaccine in comparison to licensed Fluvirin vaccine administered to healthy adults ages 18 < 50 years. Read more about this study

Who is it for?
Ages 18 to 49 yearsHealthy volunteers can take part
Conditions the study is for
Influenza Disease; Flu
What is being tested?
Influenza Virus Vaccine
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
613 participants
Where
4 sitesUnited States
Study dates
Oct 2005to May 2006
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 49 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 18 to <50 years of age;
  • able to comprehend and follow all required study procedures;
  • able and willing to provide written informed consent prior to study entry;
  • available for all the visits scheduled in the study;
  • in general good health as determined by:
  • subject-reported medical history,
  • physical examination by a qualified study nurse, a physician's assistant, or a physician,
  • clinical judgment of the investigator; among all female volunteers, evidence of a negative pregnancy test conducted on the same day as and prior to study vaccination, and agreement to practice adequate contraception for at least 6 weeks after vaccination as further described in the protocol.

Who cannot join

  • received influenza vaccine within the past 6 months;
  • laboratory-confirmed influenza disease in the past 6 months;
  • any acute respiratory disease or infection requiring systemic antibiotic or antiviral therapy (chronic antibiotic therapy for urinary tract prophylaxis was acceptable) or fever ≥38°C (100.4°F) within the past 3 days;
  • receipt of another investigational agent within 90 days or before completion of the safety follow-up period in another study, whichever was longer, prior to enrollment, and unwilling to refuse participation in another investigational study through the end of the study;
  • any history of or current serious disease, such as: d) cancer (except for benign or localized skin cancer), e) autoimmune disease (including rheumatoid arthritis), f) advanced arteriosclerotic disease or diabetes mellitus, g) chronic obstructive pulmonary disease (COPD), h) acute, chronic, or progressive hepatic disease, i) acute, chronic, or progressive renal disease, j) congestive heart failure, k) bleeding diathesis, l) an inherited genetic anomaly (known cytogenic disorders, e.g., Down's Syndrome), m) any other serious, acute, or chronic disease including progressive neurological disease or seizure disorder unrelated to fever;
  • surgery or hospitalization planned during the study period;
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  • history of any anaphylaxis, serious vaccine reactions, vaccine-associated oculorespiratory syndrome, or allergy to eggs, egg products, mercury-containing compounds (such as sodium-ethyl-mercuro-thio-salicylate), or any other vaccine component or component of the potential packaging materials (latex);
  • known or suspected disease of the immune system, or receiving immunosuppressive therapy, including use of: n) systemic corticosteroids, known to be associated with suppression of the hypothalamic-pituitary-adrenal (HPA) axis (i.e., systemic corticosteroids [15 mg/day of prednisone or its equivalent] or chronic use of inhaled high potency corticosteroids [budesonide 800 μg/day or fluticasone 750 μg/day]), both within the previous 60 days, o) receipt of immunostimulants within 60 days, p) receipt of parenteral immunoglobulin preparation, blood products, and/or plasma derivatives within the 3 months prior to study entry or anticipated during the full length of the study;
  • at high risk for developing an immunocompromising disease;
  • history of (or current) drug or alcohol abuse that in the investigator's opinion would interfere with safety of the subject or the evaluation of study objectives;
  • pregnant or breastfeeding;
  • if female of childbearing potential, refusal to use a reliable contraceptive method, as described further in the protocol, during the first 6 weeks after vaccination;
  • if female of childbearing potential and sexually active, has not used any of the following birth control methods for the specified time period prior to study entry:
  • hormonal (e.g., oral, injection, transdermal patch, implant, cervical ring), barrier (e.g., condom with spermicide or diaphragm with spermicide), or intrauterine device (e.g., IUD) for 2 months or more prior to study entry,
  • monogamous relationship with vasectomized partner: partner has been vasectomized for 6 months or more prior to the subject's study entry;
  • obese (e.g., with a body mass index [BMI] ≥35, where BMI reflects obesity and not high muscle mass);
  • any condition which, in the opinion of the investigator, might interfere with the evaluation of the study objectives or might interfere with the safety of the study subject.

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • Study site

    Bardstown, Kentucky, 40004

  • Study site

    Pittsburgh, Pennsylvania, 15241

  • Study site

    Salt Lake City, Utah, 84109

  • Study site

    Salt Lake City, Utah, 84121

Other trials in United States

About this study

Official title: A Phase 2, Observer-Blinded, Randomized, Multicenter Study in Healthy Adults to Evaluate Safety and Tolerability and to Compare Immunogenicity of a Single Dose of Either an Investigational Trivalent Inactivated Influenza Vaccine Produced in Mammalian Cell Culture or a US-licensed Trivalent Inactivated Influenza Vaccine (Fluvirin®) Produced in Embryonated Hen Eggs

The purpose of this study is to evaluate the safety and immunogenicity of cell culture-derived, inactivated, subunit influenza vaccine in comparison to licensed Fluvirin vaccine administered to healthy adults ages 18 < 50 years.

Being tested
Influenza Virus Vaccine
Keywords
influenza, flu
Medical subject headings
Influenza, Human

What participants receive

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

  • Influenza Virus VaccineBiological

Study groups in NCT00264576
Study groupRoleWhat they receive
cTIVExperimentalReceived one dose of cell-culture derived trivalent influenza vaccine (cTIV).
Receives: Biological: Influenza Virus Vaccine
TIVActive comparatorReceived one dose of egg-derived trivalent vaccine (TIV).
Receives: Biological: Influenza Virus Vaccine

What is being measured

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

  1. Geometric Mean Titers (GMT) After 1 Dose of Cell-culture-derived Vaccine (cTIV) or Egg-derived Vaccine (eTIV_f), Using the ANOVA Method.

    Non-inferiority was measured by the ratio of postvaccination geometric mean titers (cTIV vs. eTIV_f) against all three vaccine strains as assessed by egg-derived antigen and cell-derived antigen haemagglutination inhibition (HI) assay.

    Measured: 3 weeks postvaccination (Day 22)

  2. Geometric Mean Titers (GMT) After 1 Dose of Cell-culture-derived Vaccine (cTIV) or Egg-derived Vaccine (eTIV_f), Using the ANCOVA Method.

    Non-inferiority was measured by the ratio of postvaccination geometric mean titers (cTIV vs. eTIV_f) against all three vaccine strains as assessed by egg-derived antigen and cell-derived antigen haemagglutination inhibition (HI) assay.

    Measured: 3 weeks postvaccination (Day 22)

Secondary outcomes (6)
  1. Geometric Mean Ratio After 1 Dose of Cell-culture-derived Vaccine (cTIV) or Egg-derived Vaccine (eTIV_f), Using the ANOVA Method.

    Geometric mean ratio (GMR) of Day 22 / Day 1 geometric mean antibody titers was assessed by egg-derived antigen and cell-derived antigen haemagglutination inhibition (HI) assay.

    The criterion is met according to European (CHMP) guideline if the mean geometric increase GMR (Day22/Day1) in HI antibody titer is > 2.5.

    Measured: 3 weeks postvaccination (Day 22)

  2. Geometric Mean Ratio After 1 Dose of Cell-culture-derived Vaccine (cTIV) or Egg-derived Vaccine (eTIV_f), Using the ANCOVA Method.

    Geometric mean ratio (GMR) of Day 22 / Day 1 geometric mean antibody titers was assessed by egg-derived antigen and cell-derived antigen haemagglutination inhibition (HI) assay.

    The criterion is met according to European (CHMP) guideline if the mean geometric increase GMR (Day22/Day1) in HI antibody titer is > 2.5.

    Measured: 3 weeks postvaccination (Day 22)

  3. Geometric Mean Titers (GMT) Before and After 1 Dose of Cell-culture-derived Vaccine (cTIV) or Egg-derived Vaccine (eTIV_f), Using the ANOVA Method

    Antibody titers as assessed by egg-derived antigen and cell-derived antigen haemagglutination inhibition (HI) assay.

    Measured: 3 weeks postvaccination (Day 22)

  4. Percentages of Subjects With Haemagglutination Inhibition (HI) Antibody Titer ≥ 40.

    Antibody titers as assessed by egg-derived antigen and cell-derived antigen HI assay.

    This criterion is met according to European (CHMP) guideline if the percentages of subjects achieving HI titers ≥40 is >70%. According to the US Center for Biologics Evaluation and Research (CBER) guideline, the criterion is also met if the lower limit of the 95% CI for percentages of subjects achieving seroprotection (HI antibody titer ≥1:40) is ≥70%.

    Measured: 3 weeks postvaccination (Day 22)

  5. Percentages of Subjects With Seroconversion.

    As the definition for seroconversion/significant increase from CHMP guideline CPMP/BWP/214/96 corresponds to that of seroconversion from the May 2007 CBER guidance, the analysis of this immunogenicity endpoint is presented as seroconversion. Seroconversion is defined as prevaccination HI titer <10 and postvaccination HI titer ≥40, or prevaccination HI titer ≥10 and a ≥4-fold increase in postvaccination HI antibody titer, on day 22. CBER criterion is met if the lower limit of the 95% CI for percentages of subjects achieving seroconversion for HI antibody (at least a 4-fold rise in HI antibody titer) postvaccination is ≥40%. CHMP criterion is also met if the percentages of subjects achieving seroconversion is >40%.

    Measured: 3 weeks postvaccination (Day 22)

  6. Number of Subjects Reporting Local and Systemic Reactions

    Safety and tolerability of cTIV and eTIV_f postvaccination.

    Difference between demography and safety numbers was due to one misrandomization.

    Measured: 7 days postvaccination

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 2005 (estimated)
  2. Study startOct 2005
  3. Primary completionDec 2005
  4. Study completionMay 2006

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 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
613 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00264576
Sponsor's protocol ID
V58P5
Status last verified
Dec 2012
First submitted
9 Dec 2005
Last updated
24 Mar 2017
Data monitoring committee
No

Publications

  • Reisinger KS, Block SL, Izu A, Groth N, Holmes SJ. Subunit influenza vaccines produced from cell culture or in embryonated chicken eggs: comparison of safety, reactogenicity, and immunogenicity. J Infect Dis. 2009 Sep 15;200(6):849-57. doi: 10.1086/605506.

    PubMed 19673652

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Influenza Virus Vaccine in people with Influenza Disease; Flu, run by Novartis Vaccines at 4 sites 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 8 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 24 Mar 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 28 Jan 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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 (GMT) After 1 Dose of Cell-culture-derived Vaccine (cTIV) or Egg-derived Vaccine (eTIV_f), Using the ANOVA Method. (time frame: 3 weeks postvaccination (Day 22)). The study lists 2 primary outcomes in all. 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 NCT00264576, 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 24 Mar 2017.

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