Safety and Immunogenicity of Two Doses of aH5N1 Vaccine in Adult and Elderly Subjects With and Without Underlying Medical Conditions

November 3, 2016 updated by: Seqirus

Phase III, Stratified, Randomized, Controlled, Observer-Blind, Multicenter Study to Evaluate the Safety, Tolerability, and Immunogenicity of Two Doses of aH5N1 When Administered to Adult and Elderly Subjects With and Without Underlying Medical Conditions.

Evaluate the safety, immune response and reactogenicity of aH5N1 vaccination in adult (18 through 60 years of age) and elderly (≥61 years of age) subjects with and without underlying medical conditions.

Study Overview

Study Type

Interventional

Enrollment (Actual)

540

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Berlin, Germany, 10117
        • 001, Novartis Investigational Site
      • Dresden, Germany, 01307
        • 003, Novartis Investigational Site
      • Hamburg, Germany, 20359
        • 005, Novartis Investigational Site
      • Magdeburg, Germany, 39120
        • 006, Novartis Investigational Site
      • Rostock, Germany, 18055
        • 004, Novartis Investigational Site
      • Wuerzburg, Germany, 97070
        • 002, Novartis Investigational Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • - Male and female individuals 18 years of age and older at the time of enrollment who are mentally competent, willing and able to understand the nature and risks of the proposed study, and able to sign the consent form prior to study entry;
  • Individuals who are able to comply with all study procedures and requirements;
  • Healthy volunteers and volunteers specifically with underlying COPD, cardiovascular disease, diabetes mellitus, peripheral vascular disease, or renal impairment may be eligible;
  • Please contact the site for additional eligibility criteria.

Exclusion Criteria:

  • Individuals who are not able to follow all the required study procedures for the whole period of the study;
  • Individuals with behavioral or cognitive impairment or psychiatric disease that, in the opinion of the Investigator, may interfere with the subject's ability to participate in the study;
  • Please contact the site for additional eligibility criteria.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Arm 1: aH5N1 adult
aH5N1 healthy and non-healthy adults
2 doses of 0.5 ml, 3 weeks apart
Experimental: Arm 2: aH5N1 elderly
aH5N1 healthy and non-healthy elderly
2 doses of 0.5 ml, 3 weeks apart
Active Comparator: Arm 3: aTIV adult
aTIV healthy and non-healthy adults
2 doses of 0.5 ml, 3 weeks apart
Active Comparator: Arm 4: aTIV elderly
aTIV healthy and non-healthy elderly
2 doses of 0.5 ml, 3 weeks apart

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of subjects achieving seroconversion
Time Frame: day 43
Seroconversion is defined as hemagglutination inhibition (HI) ≥1:40 for subjects who were seronegative at baseline [day 1 HI titer <1:10] or a minimum 4-fold increase in HI titer for subjects who were seropositive at baseline [day 1 HI titer ≥1:10])
day 43
Geometric mean ratios (GMRs) as determined by HI assay
Time Frame: day 43
day 43
Percentage of subjects with an HI titer ≥1:40
Time Frame: day 43
day 43
Solicited and unsolicited adverse events
Time Frame: day 202
In pooled age groups 18 years of age and older subjects who are healthy or with underlying medical condition who have received aTIV or aH5N1 vaccine.
day 202

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Geometric mean titers (GMTs) as determined by HI
Time Frame: day 1
HI assay: homologous antibody responses to aH5N1 vaccine 3 weeks after first vaccination (day 22) according to CHMP immunogenicity criteria in adult and elderly subjects who are healthy or with underlying medical condition
day 1
Geometric mean ratios (GMRs) as determined by SRH
Time Frame: day 22
day 22
Percentage of subjects with an HI titer ≥1:40
Time Frame: day 22
day 22
Percentage of subjects achieving seroconversion
Time Frame: day 22
Seroconversion is defined as SRH area ≥25 mm2 for subjects who were seronegative at baseline [day 1 SRH area ≤3.997 mm2] or a significant increase [at least 50% increase] in SRH area for subjects who were seropositive at baseline [SRH area >3.997 mm2])
day 22
Percentage of subjects with geometric mean area ≥25 mm2
Time Frame: day 43
day 43
Percentage of subjects achieving seroconversion
Time Frame: day 22
Seroconversion is defined as HI ≥1:40 for subjects who were seronegative at baseline [day 1 HI titer <1:10] or a minimum 4-fold increase in HI titer for subjects who were seropositive at baseline [day 1 HI titer ≥1:10])
day 22
GMTs as determined by SRH
Time Frame: day 43 (3 weeks after the second vaccination)
Serial radial haemolysis (SRH) assay: homologous antibody responses to aH5N1 vaccine 3 weeks after first and second vaccinations (day 22 and day 43) according to CHMP immunogenicity criteria in adult and elderly subjects who are healthy or with underlying medical condition
day 43 (3 weeks after the second vaccination)
GMRs as determined by HI
Time Frame: day 22
day 22
Geometric mean titers (GMTs) as determined by HI
Time Frame: day 43 (3 weeks after the second vaccination)
HI assay: homologous antibody responses to aH5N1 vaccine 3 weeks after first vaccination (day 22) according to CHMP immunogenicity criteria in adult and elderly subjects who are healthy or with underlying medical condition
day 43 (3 weeks after the second vaccination)
Geometric mean titers (GMTs) as determined by HI
Time Frame: day 22 (3 weeks after the first vaccination)
HI assay: homologous antibody responses to aH5N1 vaccine 3 weeks after first vaccination (day 22) according to CHMP immunogenicity criteria in adult and elderly subjects who are healthy or with underlying medical condition
day 22 (3 weeks after the first vaccination)
GMRs as determined by SRH
Time Frame: day 43
day 43
Percentage of subjects with an HI titer ≥1:40
Time Frame: day 1
day 1
Percentage of subjects with geometric mean area ≥25 mm2
Time Frame: day 1
day 1
Percentage of subjects with geometric mean area ≥25 mm2
Time Frame: day 22
day 22
Percentage of subjects achieving seroconversion
Time Frame: day 43
Seroconversion is defined as SRH area ≥25 mm2 for subjects who were seronegative at baseline [day 1 SRH area ≤3.997 mm2] or a significant increase [at least 50% increase] in SRH area for subjects who were seropositive at baseline [SRH area >3.997 mm2])
day 43
GMTs as determined by SRH
Time Frame: day 1
Serial radial haemolysis (SRH) assay: homologous antibody responses to aH5N1 vaccine 3 weeks after first and second vaccinations (day 22 and day 43) according to CHMP immunogenicity criteria in adult and elderly subjects who are healthy or with underlying medical condition
day 1
Geometric mean ratios (GMRs) as determined by SRH
Time Frame: day 43 (3 weeks after the second vaccination)
day 43 (3 weeks after the second vaccination)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Collaborators

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2014

Primary Completion (Actual)

April 1, 2015

Study Completion (Actual)

April 1, 2015

Study Registration Dates

First Submitted

March 7, 2014

First Submitted That Met QC Criteria

March 17, 2014

First Posted (Estimate)

March 19, 2014

Study Record Updates

Last Update Posted (Estimate)

November 4, 2016

Last Update Submitted That Met QC Criteria

November 3, 2016

Last Verified

November 1, 2016

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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