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Clinical Trial Summary

The primary goal of the study is to assess the residual effects of heavy drinking on academic performance. The investigators will also explore whether these effects differ by family history of alcohol abuse and hangover symptoms, as well as compare males and females with respect to these effects. The primary hypothesis is that intoxication (0.10 g% blood alcohol concentration [BAC]) with an alcoholic beverage impairs next-day academic performance, as measured by scores on quizzes, standardized academic achievement tests, and standardized neurobehavioral assessments. The secondary hypothesis is that family-history-positive individuals will show a greater performance decrement the day after heavy drinking than family-history-negative individuals.


Clinical Trial Description

The primary goal of the study is to assess the effect of heavy drinking on next day academic performance. A placebo-controlled 2-period crossover design will be used to compare the effects of dosing status on academic performance, with participants serving as their own controls. Participants are dosed on two separate occasions, once with non-alcoholic beverage and the other time with alcoholic beverage sufficient to raise blood alcohol to 0.10 g%. The morning after dosing, participants' academic performance is measured using a standardized achievement test (Graduate Record Exam). Participants' cognition is tested using the the Psychomotor Vigilance Test (PVT). Data on participants' demographics, family history of drinking problems and alcohol use. We are also collecting information on hangover symptoms and sleep quality the morning after dosing, in addition to participants' self ratings of academic performance. The procedure is conducted twice with one week in between, switching the individuals' dosing status, presenting a different, but comparable lecture and reading, and administering a different quiz based on the new lecture and reading and a different, but comparable standardized achievement exam. This design is intended to test the hypothesis that intoxication (0.10 g% BAC) with alcoholic beverage impairs next-day academic performance. Participation involves a total of five sessions over a two week period. Participants are undergraduates who volunteer and meet inclusion criteria. Prior to enrollment, volunteers are screened to ensure they meet initial eligibility criteria. Eligible volunteers receive written instructions regarding participation and are scheduled for the study sessions. Participants report to the study site on the first session for an additional screening by the study physician and go through the informed consent process. Eligible participants report back the next week for their first dosing night where they receive several drinks (alcohol or placebo) sufficient to raise their Breath Alcohol Level (BrAC) to 0.10 g%; the amount of beverage administered is based on their body weight. Those receiving placebo receive the same total quantity of beverage as those receiving alcohol. Both alcohol-dosed and placebo-dosed participants are breath-tested after they have completed their required dose. Participants sleep at the study site and are monitored overnight. The next morning they are awakened and are escorted to the exam room for the performance trials. They return the next week for the second dosing night/dosing morning, and receive either alcohol or placebo, depending on what was administered the previous week, and take different but comparable performance tests. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT00183170
Study type Interventional
Source Boston University
Contact
Status Completed
Phase Phase 2
Start date February 2004
Completion date January 2009

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