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Immunogenicity and Safety of Pandemic Influenza Vaccine in Healthy Adults

Primary Purpose

Pandemic Influenza

Status
Completed
Phase
Phase 1
Locations
Taiwan
Study Type
Interventional
Intervention
Pandemic Influenza Vaccine (H5N1)
Sponsored by
Adimmune Corporation
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Pandemic Influenza focused on measuring pandemic influenza, pandemic influenza vaccine, Influenza, Orthomyxoviruses, A/H5N1

Eligibility Criteria

20 Years - 60 Years (Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • A male or non-pregnant female (as indicated by a negative urine pregnancy test immediately on the day prior to first vaccine administration) between 20 to 60 years of age at the time of the first vaccination. Women of childbearing potential agree to practice highly effective birth control throughout the study (from Screening to Month 3).
  • Subjects are free of obvious health problems as judged by investigator (established by medical history and physical examination) before entering the study.
  • Subject is physically and mentally capable of participating in the study and willing to adhere to study procedures to complete all elements of the study diary.
  • Subjects provide signed informed consent after receiving a detailed explanation of the study protocol prior to any study procedures.

Exclusion Criteria:

  • Medical history of physician-confirmed infection with an H5N1 virus or a history of vaccination with an H5N1 influenza vaccine.
  • Subject is at high risk of contracting H5N1 influenza infection (e.g. poultry workers).
  • Has received any other licensed vaccines within 2 weeks for inactivated vaccines or 4 weeks for live vaccines prior to enrollment in this study.
  • Use of any investigational or non-registered product other than the study vaccine within 30 days preceding the first dose of study vaccine, or planned use during the study period.
  • Subject has used oral or parenteral steroids, high-dose inhaled steroids (>800 mcg/day of beclomethasone dipropionate or equivalent) or other immunosuppressive or cytotoxic drugs within 30 days preceding the first dose of study vaccine.
  • Subject has received a blood transfusion or immunoglobulins within 90 days prior to first dose of study vaccine, or planned administration of any blood products during the study period.
  • Subject has a known allergy to eggs or other components of the study vaccine.
  • Subject has a history of severe allergic reactions or anaphylaxis.
  • Subject has a history of Guillain-Barré Syndrome.
  • Subject has an acute illness or temperature greater than 38.0 degrees Celsius by any method within 3 days prior to each vaccination.
  • Subject has confirmed or suspected immunosuppressive or immunodeficient condition including history of human immunodeficiency virus (HIV) infection.
  • Subject has a rash, dermatologic condition or tattoos which may interfere with injection site reaction rating.
  • Evidence of substance (alcohol or drug) abuse or of neurological or psychiatric diagnoses which, even if clinically stable, are deemed by the investigator to render the potential subject unable/unlikely to provide accurate safety reports.
  • Subjects with abnormal laboratory results at screening:(1) ALT or AST > or = 1 x upper limit of normal (ULN). (2) Creatinine > or = 1 x ULN. (3) Any significant laboratory abnormality as judged by the investigator
  • Females are known pregnancy or a positive urine beta-human chorionic gonadotropin test result prior to the first study vaccine dose, or are lactating or nursing.
  • Subject has any other condition that disqualifies his/her participation in the study in the opinion of the investigator.

Sites / Locations

  • National Cheng Kung University Hospital

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Study vaccine (AdimFlu-W)

Arm Description

0.5 mL/dose, a total of 2 doses, 21 days apart

Outcomes

Primary Outcome Measures

Immunogenicity Endpoint: hemagglutination inhibition (HAI) titer and microneutralization (MN) titer
The primary immune response endpoint is to evaluate the seroconversion rate (SCR) in terms of HAI assays at Day 43 (21 days after the second dose).The secondary HAI endpoints are defined as following: SCR for the first vaccination, at Day 22. Seroprotection rates (SPR) for each vaccination, at Day 22 and 43. The geometric mean fold rise (GMFR) for each vaccination, at Day 22 and 43. The supportive immunogenicity endpoints of MN antibodies are SCRs, SPRs and GMFRs at Day 22 and 43.

Secondary Outcome Measures

The secondary objective is to evaluate the safety and tolerability profiles including the presence or absence of the pre-specified reactogenicity events and other serious/non-serious adverse events after vaccination.
Safety data will consist of reactogenicity, serious and non-serious adverse events. Reactogenicity events are pre-specified adverse events systematically recorded for 7 days after each vaccination.The events included fever (≥38.0°C), runny nose or nasal congestion, cough, sore throat, muscle aches, headache, vomiting, nausea and malaise. Furthermore, the local (injection site) reactions were also evaluated, including soreness/pain, swelling, redness, ecchymosis and limitation of arm motion.

Full Information

First Posted
July 12, 2012
Last Updated
July 12, 2018
Sponsor
Adimmune Corporation
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1. Study Identification

Unique Protocol Identification Number
NCT01640691
Brief Title
Immunogenicity and Safety of Pandemic Influenza Vaccine in Healthy Adults
Official Title
A Clinical Study to Evaluate the Immunogenicity and Safety of Pandemic Influenza Vaccine, AdimFlu-W (H5N1), in Healthy Adults
Study Type
Interventional

2. Study Status

Record Verification Date
July 2018
Overall Recruitment Status
Completed
Study Start Date
July 10, 2012 (Actual)
Primary Completion Date
January 2, 2013 (Actual)
Study Completion Date
June 2013 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Adimmune Corporation

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The objectives of this single arm study are to evaluate the immune response and safety profiles of two injections of an inactivated whole-virion vaccine containing aluminum hydroxide adjuvant, AdimFlu-W (H5N1), against influenza A (H5N1) in healthy adults.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Pandemic Influenza
Keywords
pandemic influenza, pandemic influenza vaccine, Influenza, Orthomyxoviruses, A/H5N1

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 1, Phase 2
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
39 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Study vaccine (AdimFlu-W)
Arm Type
Experimental
Arm Description
0.5 mL/dose, a total of 2 doses, 21 days apart
Intervention Type
Biological
Intervention Name(s)
Pandemic Influenza Vaccine (H5N1)
Other Intervention Name(s)
AdimFlu-W (H5N1) Pandemic Influenza Vaccine
Intervention Description
Inactivated whole-virion vaccine Administration route: Intramuscular Injection Dosing schedule: 2 injections - at Day 1 and Day 22 separately Dose(s): Each dose (0.5 mL) contains the 15 mcg hemagglutinin (HA) of influenza A (A/Vietnam/1194/2004)
Primary Outcome Measure Information:
Title
Immunogenicity Endpoint: hemagglutination inhibition (HAI) titer and microneutralization (MN) titer
Description
The primary immune response endpoint is to evaluate the seroconversion rate (SCR) in terms of HAI assays at Day 43 (21 days after the second dose).The secondary HAI endpoints are defined as following: SCR for the first vaccination, at Day 22. Seroprotection rates (SPR) for each vaccination, at Day 22 and 43. The geometric mean fold rise (GMFR) for each vaccination, at Day 22 and 43. The supportive immunogenicity endpoints of MN antibodies are SCRs, SPRs and GMFRs at Day 22 and 43.
Time Frame
At Day 43 (21 days after the second dose).
Secondary Outcome Measure Information:
Title
The secondary objective is to evaluate the safety and tolerability profiles including the presence or absence of the pre-specified reactogenicity events and other serious/non-serious adverse events after vaccination.
Description
Safety data will consist of reactogenicity, serious and non-serious adverse events. Reactogenicity events are pre-specified adverse events systematically recorded for 7 days after each vaccination.The events included fever (≥38.0°C), runny nose or nasal congestion, cough, sore throat, muscle aches, headache, vomiting, nausea and malaise. Furthermore, the local (injection site) reactions were also evaluated, including soreness/pain, swelling, redness, ecchymosis and limitation of arm motion.
Time Frame
At 4 weeks after two doses of study vaccine, 4 weeks apart. Reactogenicity will be recorded for 7 days after each vaccination.

10. Eligibility

Sex
All
Minimum Age & Unit of Time
20 Years
Maximum Age & Unit of Time
60 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: A male or non-pregnant female (as indicated by a negative urine pregnancy test immediately on the day prior to first vaccine administration) between 20 to 60 years of age at the time of the first vaccination. Women of childbearing potential agree to practice highly effective birth control throughout the study (from Screening to Month 3). Subjects are free of obvious health problems as judged by investigator (established by medical history and physical examination) before entering the study. Subject is physically and mentally capable of participating in the study and willing to adhere to study procedures to complete all elements of the study diary. Subjects provide signed informed consent after receiving a detailed explanation of the study protocol prior to any study procedures. Exclusion Criteria: Medical history of physician-confirmed infection with an H5N1 virus or a history of vaccination with an H5N1 influenza vaccine. Subject is at high risk of contracting H5N1 influenza infection (e.g. poultry workers). Has received any other licensed vaccines within 2 weeks for inactivated vaccines or 4 weeks for live vaccines prior to enrollment in this study. Use of any investigational or non-registered product other than the study vaccine within 30 days preceding the first dose of study vaccine, or planned use during the study period. Subject has used oral or parenteral steroids, high-dose inhaled steroids (>800 mcg/day of beclomethasone dipropionate or equivalent) or other immunosuppressive or cytotoxic drugs within 30 days preceding the first dose of study vaccine. Subject has received a blood transfusion or immunoglobulins within 90 days prior to first dose of study vaccine, or planned administration of any blood products during the study period. Subject has a known allergy to eggs or other components of the study vaccine. Subject has a history of severe allergic reactions or anaphylaxis. Subject has a history of Guillain-Barré Syndrome. Subject has an acute illness or temperature greater than 38.0 degrees Celsius by any method within 3 days prior to each vaccination. Subject has confirmed or suspected immunosuppressive or immunodeficient condition including history of human immunodeficiency virus (HIV) infection. Subject has a rash, dermatologic condition or tattoos which may interfere with injection site reaction rating. Evidence of substance (alcohol or drug) abuse or of neurological or psychiatric diagnoses which, even if clinically stable, are deemed by the investigator to render the potential subject unable/unlikely to provide accurate safety reports. Subjects with abnormal laboratory results at screening:(1) ALT or AST > or = 1 x upper limit of normal (ULN). (2) Creatinine > or = 1 x ULN. (3) Any significant laboratory abnormality as judged by the investigator Females are known pregnancy or a positive urine beta-human chorionic gonadotropin test result prior to the first study vaccine dose, or are lactating or nursing. Subject has any other condition that disqualifies his/her participation in the study in the opinion of the investigator.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Chih-Jen Chang, MD
Organizational Affiliation
National Cheng-Kung University Hospital
Official's Role
Principal Investigator
Facility Information:
Facility Name
National Cheng Kung University Hospital
City
Tainan
Country
Taiwan

12. IPD Sharing Statement

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Immunogenicity and Safety of Pandemic Influenza Vaccine in Healthy Adults

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