Intradermal Trivalent Influenza Vaccine With Imiquimod
Chronic Illness
About this trial
This is an interventional prevention trial for Chronic Illness focused on measuring intradermal, influenza, vaccination
Eligibility Criteria
Inclusion Criteria:
- All adult patients at the age of 21 or above with chronic illness and given written informed consent
- Subjects must be available to complete the study and comply with study procedures. Willingness to allow for serum samples to be stored beyond the study period, for potential additional future testing to better characterize immune response.
Exclusion Criteria:
- Clinically significant immune-related diseases or significant recent co-morbidities
- Inability to comprehend and to follow all required study procedures
- History or any illness that might interfere with the results of the study or pose additional risk to the subjects due to participation in the study
- Have received 2011/2012 TIV
- Have a recent history (documented, confirmed or suspected) of a flu-like disease within a week of vaccination.
- Have a known allergy to eggs or other components of the Study Vaccines (including gelatin, formaldehyde, octoxinol, thimerosal, and chicken protein), or history of any anaphylaxis, serious vaccine reactions, to any excipients.
- Have a positive urine or serum pregnancy test within 24 hours prior to vaccination, or women who are breastfeeding.
- Female of childbearing potential, not using any acceptable contraceptive methods for at least 2 months prior to study entry or that do not plan to use acceptable birth control measures during the first 3 weeks after vaccination.
- Have immunosuppression as a result of an underlying illness or treatment, or use of anticancer chemotherapy or radiation therapy (cytotoxic) within the preceding 36 months.
- Have an active neoplastic disease or a history of any hematologic malignancy.
- Have long-term use of glucocorticoids including oral, parenteral or high-dose inhaled steroids (>800 mcg/day of beclomethasone dipropionate or equivalent) within the preceding 6 months. (Nasal and topical steroids are allowed).
- Have a history of receiving immunoglobulin or other blood product within the 3 months prior to vaccination in this study.
- Have known active human immunodeficiency virus (HIV) infection, acute hepatitis B or C infection, autoimmune hepatitis and related cirrhosis
- Received an experimental agent (vaccine, drug, biologic, device, blood product, or medication) within 1 month prior to vaccination in this study or expect to receive an experimental agent during this study. Unwilling to refuse participation in another clinical study through the end of this study.
- History of progressive or severe neurological disorders
- Have received any licensed vaccines within 4 weeks or inactivated licensed vaccines within 2 weeks prior to vaccination in this study or plan receipt of such vaccines within 21 days following the second vaccination (only exception being unadjuvanted seasonal influenza vaccines which are allowed until 1 week prior to and after 1 week study vaccinations).
- Axillary temperature ≥ 38°C or oral temperature ≥ 38.5°C within 3 days of intended study vaccination
- Surgery planned during the study period that in the Investigator's opinion would interfere with the study visits schedule
- Have a history of alcohol or drug abuse in the last 5 years.
- Have a history of Guillain-Barré Syndrome.
- Have any condition that the investigator believes may interfere with successful completion of the study.
Sites / Locations
- The University of Hong Kong, Queen Mary Hospital
Arms of the Study
Arm 1
Arm 2
Arm 3
Active Comparator
Active Comparator
Experimental
IM vaccine and placebo cream
ID vaccine and placebo cream
ID vaccine and imiquimod cream
A single dose of intramuscular influenza vaccine (15ug non-adjuvanted 2011/2012 TIV) with pre-treatment of the injected skin with aqueous cream
A single dose of intradermal influenza vaccine (15ug non-adjuvanted 2011/2012 TIV) with pre-treatment of the injected skin with aqueous cream
A single dose intradermal influenza vaccine (15ug non-adjuvanted 2011/2012 TIV) with pre-treatment of the injected skin with imiquimod cream applied to the skin before vaccination