Safety Study of Seasonal Influenza Vaccine by Jet Injection
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
|Official Title:||A Clinical Study to Assess the Safety, Tolerability, and Immunogenicity of Licensed Seasonal Trivalent Influenza Vaccine Administered by Needle-free Jet Injection in One Intramuscular Dose to Healthy Young Adults|
- Adverse event (AE) and serious adverse event (SAE) information (solicited in the clinic and via memory aids, concomitant medications, and periodic targeted physical assessment) [ Time Frame: 90 Days ]
- Proportion of volunteers in each administration group achieving a greater than four-fold rise in hemagglutination inhibition (HI) titer from pre-vaccination to 28 days post-vaccination against each of the vaccine-associated strains [ Time Frame: Day 28 ]
- Proportion of volunteers in each administration group achieving a HI titer >40 on day 28 post-vaccination against each of the vaccine-associated strains [ Time Frame: Day 28 ]
- Geometric mean titer (GMT) of HI titers against each of the vaccine-associated strains in each group 28 days after receipt of the vaccine [ Time Frame: Day 28 ]
|Study Start Date:||January 2010|
|Study Completion Date:||May 2010|
|Primary Completion Date:||May 2010 (Final data collection date for primary outcome measure)|
Active Comparator: TIV by needle and syringe
30 volunteers will receive 1 intramuscular (IM) dose of licensed trivalent inactivated 2009-10 seasonal influenza vaccine by the standard needle and syringe method
Device: TIV by jet injection
Administration of seasonal trivalent influenza vaccine (TIV) by jet injection
Experimental: TIV by jet injection
30 volunteers will receive 1 intramuscular (IM) dose of licensed trivalent inactivated 2009-10 seasonal influenza vaccine by the experimental method of jet injection
LectraJet is a new jet injector studied for the first time in humans. It is in the category known as disposable-syringe jet injectors that have the advantage of eliminating the risk of disease transmission between subjects. A new syringe and nozzle is used for each patient so that no splash back of blood can occur onto the jet apparatus itself.
The device is called LectraJet M3 and has recently been approved by the Food and Drug Administration (or FDA), the government agency that oversees the approval of new medical devices. The approval is called a 510(k) and allows for the marketing and use of the device in the United States (US). Devices under a 510(k) do not need to have clinical trials performed. The researchers are performing this study in order to collect clinical data in a controlled environment. Non significant risk (NSR) devices such as the LectraJet may be studied in clinical trials with or without a 510(k). Currently there are several other disposable-syringe jet injectors that are also FDA approved for sale and use in the United States, including: 1) Biojector® 2000 , 2) Medi-Jector Vision, and 3) Injex™. These devices have been used to deliver millions of injections in a variety of healthcare settings. The LectraJet® is jet injector that is most suited for mass immunization campaigns due to the ability to power the device with a foot pedal as well as electricity and the speed with which immunizations can be delivered. It is designed so that vaccine delivery characteristics are the same as that of the licensed disposable-syringe jet injectors.
Giving vaccines without needles (needle-free vaccine delivery) may be better than giving them using a needle for many reasons. One method for giving shots without needles is a technique called jet injection. This is what the researchers are testing in this study. A jet injector pushes the vaccine fluid out of a small hole at a high enough speed to allow the vaccine to go under the subject's skin without needing a needle. Years ago, people got shots using jet injectors, but these older devices reused the same "nozzle" or hole through which the fluid was forced. Newer jet injectors, including the one the researchers are testing in this study, use disposable cartridges to hold the vaccine. So, the only thing that touches the subject's skin is their own cartridge, which gets thrown away after injection.
In this study, the volunteers are getting the licensed seasonal flu vaccine to see if the jet injector works as well as giving the vaccine by needle and syringe. The seasonal flu vaccine that the researchers are using is called trivalent influenza vaccine (TIV). It is licensed in the US to protect people 6 months of age and older against influenza. Influenza is a virus that is also commonly known as the "flu". The flu is a serious illness that kills over 35,000 people per year in the US alone. The flu virus constantly changes and that is why people who are at risk for developing complications from the flu, such as children, the elderly, and people with underlying health conditions need to be vaccinated every year. Volunteers will receive the 2009-2010 annual seasonal flu vaccine called TIV either by needle and syringe or by jet injection. The researchers will compare the side effects and see how well the vaccine generates an immune response when given by the two methods.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00987350
|United States, Maryland|
|University of Maryland College Park Health Center|
|College Park, Maryland, United States|
|Principal Investigator:||Jakub K Simon, MD, MS||University of Maryland|