The Long-term Immunogenicity of an Inactivated Split-virion 2009 Pandemic Influenza A H1N1 Vaccine
1 other identifier
interventional
480
1 country
1
Brief Summary
The aim of this study is to investigate the long-term immunogenicity and safety of the inactivated split-virion vaccine after one immunization.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Jul 2009
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2009
CompletedFirst Submitted
Initial submission to the registry
April 7, 2011
CompletedFirst Posted
Study publicly available on registry
April 15, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2011
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2011
CompletedSeptember 11, 2018
October 1, 2015
2 years
April 7, 2011
September 8, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Hemagglutination inhibition antibody titer
Day 180
Secondary Outcomes (1)
occurrence of solicited local and systemic adverse events after vaccination
Days 0-42
Study Arms (4)
split-virion, non-adjuvanted vaccine of 15 μg
EXPERIMENTALsplit-virion, non-adjuvanted H1N1 vaccine of 15 μg.
split-virion, non-adjuvanted vaccine of 30 μg
EXPERIMENTALsplit-virion, non-adjuvanted H1N1 vaccine of 30 μg.
split-virion, non-adjuvanted vaccine of 45 μg
EXPERIMENTALsplit-virion, non-adjuvanted H1N1 vaccine of 45 μg.
Placebo control
PLACEBO COMPARATORPlacebo control
Interventions
120 adults were assigned to receive 1 dose of 15μg split-virion, non-adjuvanted H1N1 vaccine.
120 adults were assigned to receive 1 dose of 30μg split-virion, non-adjuvanted H1N1 vaccine.
120 adults were assigned to receive 1 dose of 45μg split-virion, non-adjuvanted H1N1 vaccine.
Eligibility Criteria
You may qualify if:
- Different age groups from 18 to 60 years, with normal intelligence and health. Volunteers (or their guardians) are well informed of the situation and sign the consent
- Vaccination recipients qualified for this product have been inquired about medical history and clinically proven to be healthy
- Requests of clinical research program can be obeyed
- No other protective product is inoculated in last week
- Axillary temperature below 37 degrees Celsius
You may not qualify if:
- Volunteers in another clinical trial investigating a vaccine, drug, medical device, or medical procedure in the 4 weeks preceding the first trial vaccination
- Volunteers allergic to ingredient of vaccine composition (can be checked from vaccination history), especially to egg
- History of progressive or severe neurologic disorder
- Serious adverse reactions to vaccines such as anaphylaxis, hives, respiratory difficulty, angioedema, or abdominal pain
- Known or suspected impairment/alteration of immune function, for example receiving immunosuppressive therapy or receiving blood, blood products and/or plasma derivatives or any parenteral immunoglobulin preparation
- Asthma that is unstable or required emergent care, hospitalization or intubation during the past two years or that required the use of oral or intravenous corticosteroids
- Bleeding disorder diagnosed by a doctor (e.g. factor deficiency, coagulopathy, or platelet disorder requiring special precautions) or significant bruising or bleeding difficulties with IM injections or blood draws
- History of thyroidectomy or thyroid disease that required medication within the past 12 months
- Serious angioedema episodes within the previous 3 years or requiring medication in the previous two years
- Guillain-Barre Syndrome
- Self-reported seropositivity for Human Immunodeficiency Virus (HIV), Hepatitis B, or Hepatitis C
- Any other vaccines or immunoglobulin preparation within 1 weeks prior to enrollment
- Axillary temperature ≥ 38.0 degrees Celsius within 3 days of intended study vaccination
- Any conditions may influence the evaluation
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Hunan Provincial Center of Disease Prevention and Control
Changsha, Hunan, 410005, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 7, 2011
First Posted
April 15, 2011
Study Start
July 1, 2009
Primary Completion
July 1, 2011
Study Completion
July 1, 2011
Last Updated
September 11, 2018
Record last verified: 2015-10