Peripheral Arterial Disease — Egg Study With Peripheral Arterial Disease
Citation(s)
Calabrò P, Yeh ET The pleiotropic effects of statins. Curr Opin Cardiol. 2005 Nov;20(6):541-6. Review.
Eberhardt RT, Coffman JD Cardiovascular morbidity and mortality in peripheral arterial disease. Curr Drug Targets Cardiovasc Haematol Disord. 2004 Sep;4(3):209-17. Review.
Ismail HM, Jackson K, Smith D Diagnosis and treatment of peripheral arterial disease compared with other atherosclerotic vascular diseases in a university primary care clinic. J Investig Med. 2006 Jul;54(5):255-61. doi: 10.2310/6650.2006.05049.
Lane JS, Magno CP, Lane KT, Chan T, Hoyt DB, Greenfield S Nutrition impacts the prevalence of peripheral arterial disease in the United States. J Vasc Surg. 2008 Oct;48(4):897-904. doi: 10.1016/j.jvs.2008.05.014. Epub 2008 Jun 30.
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.
