Immunogenicity and Safety of a Trivalent Inactivated Influenza Vaccine,Formulation 2011-2012, in Dialysis Patients
1 other identifier
interventional
300
1 country
1
Brief Summary
The purpose of this study is to evaluate the antibody response in dialysis patents to each of the three influenza vaccine strains included in the licensed seasonal flu vaccine (Formulation 2011-2012).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Oct 2011
Shorter than P25 for phase_4
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
October 1, 2011
CompletedFirst Submitted
Initial submission to the registry
November 1, 2011
CompletedFirst Posted
Study publicly available on registry
January 19, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2012
CompletedJanuary 19, 2012
January 1, 2012
5 months
November 1, 2011
January 13, 2012
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change of antibody titer before and after influenza vaccination
The primary endpoint will be the seroprotection rate which is defined as the proportion of subjects with HI titer ≥ 1:40. MicroNT-ELISA assay will also be used to evaluate the immune response post vaccination. The immune response based on microNT-ELISA antibody titers would be reported as antibody titer ≥1: 40 or ≥ 1:160 respectively because no threshold of protective NT antibody titer is clearly defined by the international guidelines.
18 weeks
Secondary Outcomes (3)
Seroresponse rate
0, 3 weeks, 6 weeks, 9 weeks and 18 weeks
Seroresponse rate
0, 3 weeks, 6 weeks, 9 weeks and 18 weeks
the safety and tolerability profiles of the vaccine
0, 3 week, 6 weeks, 9 weeks, 18 weeks
Study Arms (2)
the immunogenicity profiles of the AdimFlu-S
EXPERIMENTALExperimental group: to receive either only one dose of influenza vaccine at day 0 or one more booster vaccination 3 weeks later. Negative control group: dialysis patients who refused to receive influenza vaccination.
The safety outcome of the vaccine
NO INTERVENTIONAny adverse effect, including systemic or local site, will be recorded during the study period.
Interventions
All enrolled participants will be divided into 3 groups: participants refused to receive vaccination, those receive either one (week 0) or one more booster vaccination (week 0 and week 3). Each dose of vaccine contains 15μg antigen of each virus strain suggested by WHO (A/California/7/2009 (H1N1);A/Perth/16/2009 (H3N2);B/Brisbane/60/2008).
Eligibility Criteria
You may qualify if:
- Males and non-pregnant females and aged more than 18 years;
- Willing and able to adhere to visit schedules and all study requirements;
- Subjects read and signed the study-specific informed consent.
You may not qualify if:
- Subject or his/her family is employed by the participated hospital;
- Subjects received 2010-2011 seasonal influenza vaccine within the previous 6 months;
- History of hypersensitivity to eggs or egg protein or similar pharmacological effects to study medication;
- Personal or family history of Guillain-Barré Syndrome;
- An acute febrile illness within 1 week prior to vaccination;
- Current upper respiratory illness, including the common cold or nasal congestion within 72 hours;
- Subjects with influenza-like illness as defined by the presence of fever (temperature ≥ 38°C) 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 during the study.
- Patients who receive hemodialysis therapy less than 3 months.
- Treatment with an investigational drug or device, or participation in a clinical study, within 3 months before consent;
- Immunodeficiency, or under immunosuppressive treatment.
- Receipt of any vaccine within 1 week prior to study vaccination or expected receipt between Visit 1 (study vaccination) and Visit 2 (final collection of blood samples);
- Receipt of any blood products, including immunoglobulin in the prior 3 months;
- Any severe illness needed to be hospitalization within three months.
- Underlying condition in the investigators' opinion may interfere with evaluation of the vaccine.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
National Cheng Kung University Hospital
Tainan, Taiwan, 704, Taiwan
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 1, 2011
First Posted
January 19, 2012
Study Start
October 1, 2011
Primary Completion
March 1, 2012
Study Completion
March 1, 2012
Last Updated
January 19, 2012
Record last verified: 2012-01