Influenza — Study to Evaluate Immunogenicity and Safety of an Investigational Influenza Vaccine (H1N1) in Adults
Citation(s)
Roman F, Vaman T, Kafeja F, Hanon E, Van Damme P AS03(A)-Adjuvanted influenza A (H1N1) 2009 vaccine for adults up to 85 years of age. Clin Infect Dis. 2010 Sep 15;51(6):668-77. doi: 10.1086/655830.
Van Damme P, Kafeja F, Bambure V, Hanon E, Moris P, Roman F, Gillard P Long-term persistence of humoral and cellular immune responses induced by an AS03A-adjuvanted H1N1 2009 influenza vaccine: an open-label, randomized study in adults aged 18-60 years and older. Hum Vaccin Immunother. 2013 Jul;9(7):1512-22. doi: 10.4161/hv.24504. Epub 2013 Apr 9.
Safety and Immunogenicity Study of GSK Biologicals' Influenza Vaccine GSK2340272A in Adults Aged 18 Years and Above
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
