Dysphagia — Optimizing Early Enteral Nutrition in Severe Stroke
Citation(s)
Dennis MS, Lewis SC, Warlow C; FOOD Trial Collaboration Effect of timing and method of enteral tube feeding for dysphagic stroke patients (FOOD): a multicentre randomised controlled trial. Lancet. 2005 Feb 26-Mar 4;365(9461):764-72.
FOOD Trial Collaboration Poor nutritional status on admission predicts poor outcomes after stroke: observational data from the FOOD trial. Stroke. 2003 Jun;34(6):1450-6. Epub 2003 May 15.
Heyland DK, Stephens KE, Day AG, McClave SA The success of enteral nutrition and ICU-acquired infections: a multicenter observational study. Clin Nutr. 2011 Apr;30(2):148-55. doi: 10.1016/j.clnu.2010.09.011. Epub 2010 Oct 25.
Jie B, Jiang ZM, Nolan MT, Zhu SN, Yu K, Kondrup J Impact of preoperative nutritional support on clinical outcome in abdominal surgical patients at nutritional risk. Nutrition. 2012 Oct;28(10):1022-7. doi: 10.1016/j.nut.2012.01.017. Epub 2012 Jun 5.
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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.
