NCT01003145

Brief Summary

This was a randomized, laboratory-blinded study in healthy male and non-pregnant female designed to investigate the safety, reactogenicity, and immunogenicity of an inactivated influenza H1N1 vaccine (AdimFlu-S). In the adult cohort, all volunteers were randomized in a 1:1:1 ratio to receive 2 injections of AdimFlu-S (A/H1N1) 15 mcg HA at 3 weeks apart, 2 injections of AdimFlu-S (A/H1N1) 30 mcg HA at 3 weeks apart or 1 injection of AdimFlu-S (A/H1N1) 15 mcg HA. In the elders cohort, all volunteers were randomized in a 1:1 ratio to receive 2 injections of AdimFlu-S (A/H1N1) 15 mcg HA at 3 weeks apart or 2 injections of AdimFlu-S (A/H1N1) 30 mcg HA at 3 weeks apart. Following immunization, safety was measured by assessment of adverse events for 6 weeks following the first vaccination, serious adverse events and new-onset chronic medical conditions through 7 months post first vaccination; and reactogenicity to the vaccines for 7 days following each vaccination. Immunogenicity testing included hemagglutinin inhibition (HAI) testing on serum obtained before first vaccination, and three and six weeks after first vaccination.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
292

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2009

Shorter than P25 for not_applicable

Geographic Reach
1 country

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2009

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

October 27, 2009

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 28, 2009

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2010

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2010

Completed
Last Updated

January 20, 2012

Status Verified

January 1, 2012

Enrollment Period

7 months

First QC Date

October 27, 2009

Last Update Submit

January 19, 2012

Conditions

Keywords

InfluenzavaccineImmunogenicity

Outcome Measures

Primary Outcomes (2)

  • The primary immunogenicity objective is to assess the antibody response following a single dose of study vaccine, stratified by age of recipient, when administered at the 15 or 30 μg HA doses.

  • The primary safety objective of this study is to assess the safety of the study vaccine when administered at the 15 or 30 μg dose.

Secondary Outcomes (1)

  • The secondary immunogenicity objective is to assess the antibody response following 2 doses of study vaccine, stratified by age of recipient, when administered at the 15 or 30 μg HA doses.

Study Arms (3)

H1N1 vaccine of 15 μg HA on Day 0

EXPERIMENTAL

15 μg HA (0.5 mL) per injection, 1 injection 50 adults (aged 18\~60 years) were assigned to receive one injection of H1N1 vaccine

Biological: Influenza A (H1N1) 2009 monovalent vaccine, inactivated

H1N1 vaccine of 15 μg HA on Day 0 and 21

EXPERIMENTAL

15 μg HA (0.5 mL) per injection, 2 injections 50 adults (aged 18\~60 years) and 50 elders (aged over 60 years) were assigned to receive two injections of H1N1 vaccine 3 weeks apart

Biological: Influenza A (H1N1) 2009 monovalent vaccine, inactivated

H1N1 vaccine of 30 μg HA on Day 0 and 21

EXPERIMENTAL

30 μg HA (1 mL) per injection, 2 injections 50 adults (aged 18\~60 years) and 50 elders (aged over 60 years) were assigned to receive two injections of H1N1 vaccine 3 weeks apart

Biological: Influenza A (H1N1) 2009 monovalent vaccine, inactivated

Interventions

Also known as: AdimFlu-S (A/H1N1)
H1N1 vaccine of 15 μg HA on Day 0H1N1 vaccine of 15 μg HA on Day 0 and 21H1N1 vaccine of 30 μg HA on Day 0 and 21

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Males or non-pregnant females and age ≧ 18 years;
  • Willing and able to adhere to visiting schedules and all study requirements;
  • In good physical health on the basis of medical history, physical examination;
  • Subject should read and sign the study-specific informed consent.

You may not qualify if:

  • Subject ever received influenza vaccine within the previous 6 months;
  • History of hypersensitivity to eggs or egg protein or similar pharmacological effects to study medication (AdimFlu-S (A/H1N1));
  • Personal or family history of Guillain-Barré Syndrome;
  • An acute febrile illness within the last 72 hours prior to vaccination;
  • Subjects, with bleeding or any coagulation disorder, who receive anticoagulants in the preceding 3 weeks, thus posing a contraindication for intramuscular injection;
  • Subjects with influenza-like illness as defined by the presence of fever (temperature ≧38.5℃) and at least two of the following four symptoms: headache, muscle/joint aches and pains (e.g. myalgia/arthralgia), sore throat and cough;
  • Female subjects who are pregnant, lactating or likely to become pregnant during the study. Women of childbearing potential who disagree to use an acceptable method of contraception (e.g., hormonal contraceptives, IUD, barrier device or abstinence) throughout the study;
  • Treatment with an investigational drug or device, or participation in a clinical study, within 3 months before consent;
  • Immunodeficiency, immunosuppressive or household contact with immunosuppression;
  • History of wheezing or have been using bronchodilator within 3 months prior to study vaccination;
  • Receipt of live virus vaccine within 1 month prior to study vaccination or expected receipt within 2 months after first study vaccination;
  • Receipt of any inactivated vaccine within 2 weeks prior to study vaccination or expected receipt of vaccination within 3 weeks after the immunogenicity evaluation period;
  • Receipt of any blood products, including immunoglobulin in the prior 3 months;
  • Underlying condition, in the investigator's opinion, that may be inappropriate for vaccination;
  • Significant chronic illness for which inactivated influenza vaccine is recommended or commonly used.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

National Taiwan University Hospital

Taipei, Taiwan

Location

Taipei Medical University Wang Fang Hospital

Taipei, Taiwan

Location

Tri-Service General Hospital

Taipei, Taiwan

Location

Related Publications (2)

  • Kung HC, Huang KC, Kao TM, Lee YC, Chang FY, Wang NC, Liu YC, Lee WS, Liu HJ, Chen CI, Chen CH, Huang LM, Hsieh SM. A clinical study to assess the immunogenicity and safety of a monovalent 2009 influenza A (H1N1) vaccine in an area with low-level epidemics of pandemic influenza. Vaccine. 2010 Oct 21;28(45):7337-43. doi: 10.1016/j.vaccine.2010.08.073. Epub 2010 Sep 17.

  • Kao TM, Hsieh SM, Kung HC, Lee YC, Huang KC, Huang LM, Chang FY, Wang NC, Liu YC, Lee WS, Liu HE, Chen CI, Chen CH. Immune response of single dose vaccination against 2009 pandemic influenza A (H1N1) in the Taiwanese elderly. Vaccine. 2010 Aug 31;28(38):6159-63. doi: 10.1016/j.vaccine.2010.07.026. Epub 2010 Jul 24.

MeSH Terms

Conditions

Influenza, Human

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Study Officials

  • Szu Min Hsieh

    National Taiwan University Hospital

    PRINCIPAL INVESTIGATOR
  • Feng Yee Chang

    Tri-Service General Hospital

    PRINCIPAL INVESTIGATOR
  • Yung Ching Liu

    Taipei Medical University Wang Fang Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Sponsor Type
INDUSTRY

Study Record Dates

First Submitted

October 27, 2009

First Posted

October 28, 2009

Study Start

September 1, 2009

Primary Completion

April 1, 2010

Study Completion

April 1, 2010

Last Updated

January 20, 2012

Record last verified: 2012-01

Locations