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Borsari B, Murphy JG, Barnett NP Predictors of alcohol use during the first year of college: implications for prevention. Addict Behav. 2007 Oct;32(10):2062-86. Epub 2007 Jan 23.
Kahler CW, Hustad J, Barnett NP, Strong DR, Borsari B Validation of the 30-day version of the Brief Young Adult Alcohol Consequences Questionnaire for use in longitudinal studies. J Stud Alcohol Drugs. 2008 Jul;69(4):611-5.
Teeters JB, Borsari B, Martens MP, Murphy JG Brief Motivational Interventions Are Associated With Reductions in Alcohol-Impaired Driving Among College Drinkers. J Stud Alcohol Drugs. 2015 Sep;76(5):700-9.
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.
