View clinical trials related to Alcoholic Intoxication.
Filter by:The purpose of the study is to determine whether a brief intervention (a short conversation build on the principles of motivational interviewing) is effective in lowering self reported alcohol use in heavy drinkers.
This study will test the reliability of a procedure for self-administering ethanol (alcohol) intravenously (through a vein), using a computer-assisted method. People ordinarily self-administer alcohol through drinking alcoholic beverages, but blood alcohol levels resulting from drinking vary greatly among individuals. For research on alcohol dependence and treatment, a tool for achieving precise blood levels is needed. In addition to testing this method of alcohol administration, the study will examine self-administration behavior and resulting breath alcohol concentration, the effects of alcohol on the participants, and differences between men and women in alcohol self-administration. Healthy normal volunteers between 21 and 45 years of age may be eligible for this study. Participants are assigned to one of two study groups. Group 1 undergoes three 7-hour study sessions and group 2 participates in two sessions, each of which includes the following procedures: - Breathalyzer and urine tests for alcohol and illicit drug use. - Urine pregnancy test for women. - Light lunch. - Questionnaire about health and recent drinking. Alcohol infusion: Subjects are seated in a comfortable chair and instructed on how to use a computer to give themselves a short infusion of alcohol through a catheter (plastic tube) that has been inserted into a vein in their the arm. Sensors are placed on their chest to monitor heart beat and their neck to record skin blood flow. At the start of the session, subjects complete questionnaires about any drug effects and urges to drink they may be feeling. They are trained on how to use the computer to administer alcohol and are then allowed to self-administer alcohol through the catheter any time they like, as long as their peak breath alcohol level does not exceed 0.1 g% (a level that would result from ingestion of 4 to 6 drinks in most people). If that point is reached, the computer automatically inactivates self-administration until the level is lowered again. Breathalyzer readings are taken every 15 to 30 minutes. Subjects may read, watch television or videos or listen to music during the sessions. Recovery: At the end of the 2.5 hours of self-administration, the catheter is removed and subjects can eat, read, watch television and relax in the clinic until their breath alcohol level falls below 0.02 g%, usually after 2.5 to 3 hours, when they can go home by taxi or with a pre-arranged designated driver.
This study will determine whether varenicline, a drug that acts on the brain's nicotine receptors and is used to help smokers stop smoking, will have an impact on alcohol self-administration. People between 24 and 60 years of age who regularly consume alcoholic drinks (more than 15 drinks per week for women, and more than 20 drinks per week for men) may be eligible for this study. The study requires five outpatient visits and one overnight hospital admission at the NIH Clinical Center. Participants undergo the following procedures: Visit 1 (outpatient: 4-5 hours) - Standard assessments, including vital signs measurements, breathalyzer test, blood and urine tests (including pregnancy test for females), questionnaires about mood, symptoms, alcohol use and smoking, if applicable - Questionnaires about medical and psychological status - Health assessment and assessment of alcohol drinking behavior Visit 2 (outpatient: 8 hours) - Standard assessments (see above) - Computer-Assisted Self-infusion of Ethanol (CASE) session: Subjects will receive a priming intravenous infusion of alcohol. After 25 min, they will be allowed to give themselves additional exposures of alcohol over a period of 2 hours by pressing a button on a computer that controls the infusion pump. Visit 3 (outpatient: 2 hours) -Standard assessments Visit 4 (outpatient: 8 hours) - Standard assessments - Brain functional magnetic resonance imaging scan (MRI). This test uses a magnetic field and radio waves to produce images of the brain. The patient lies on a table that can slide in and out of the scanner, wearing earplugs to muffle loud sounds that occur during the scanning process. Initial pictures are taken of the brain's structure and additional scans measure brain activity while the subject performs simple tasks. - Alcohol Infusion. Subjects receive an intravenous infusion of alcohol while in the MRI scanner to measure the brain s response to alcohol. Visit 5 (overnight) - Standard assessments - Repeat CASE session - Interview about the subject's experiences participating in the protocol, including any symptoms and urges to drink Visit 6 (outpatient) - Standard assessments (without blood tests) - Interview about participation in the study Telephone follow-up After 3 weeks, subjects are called to check on their symptoms and gather information on their drinking and, if applicable, smoking.
The purpose of this study is to examine the effects of quetiapine in reducing percent heavy drinking days and increasing percent abstinent days in alcohol dependent patients who are frequent heavy drinkers.
1. The major aims are to assess: (1) the relationship of basal and alcohol-induced neurosteroid and GABA levels to the degree of acute alcohol intoxication in healthy male and female volunteers; and (2) the effect of acute pregnenolone administration on the degree of acute alcohol intoxication in these same volunteers. Specific hypotheses are: - Baseline serum levels of pregnenolone, pregnenolone sulfate (PS), dehydroepiandrosterone (DHEA) and DHEA sulfate (DHEA-S) will be inversely correlated with the magnitude of acute behavioral responses to alcohol (sedation, anxiolysis, amnesia, psychomotor impairment and intoxication). That is, higher baseline levels of these neurosteroids will be associated with lessened behavioral responses to alcohol. - Baseline serum levels of allopregnanolone, tetrahydrodeoxycorticosterone (THDOC), androstanediol, androsterone and GABA will be directly correlated with the magnitude of acute behavioral responses to alcohol. That is, higher baseline levels of these substances will be associated with heightened behavioral responses to alcohol. - Acute alcohol ingestion, compared to placebo ingestion, will increase serum levels of allopregnanolone and THDOC and plasma levels of GABA and will decrease plasma levels of PS. (Effects on levels of other neurosteroids are not specifically predicted based on animal data but will be examined in an exploratory manner.) - Acute alcohol-induced increases in serum levels of allopregnanolone and THDOC and in plasma levels of GABA will be directly correlated with the magnitude of acute behavioral responses to alcohol. Acute alcohol-induced decreases in serum levels of PS will be directly correlated with the magnitude of acute behavioral responses to alcohol. Correlations between alcohol-induced changes in other neurosteroids and changes in behavior are not specifically predicted but will be examined in an exploratory manner. - Pregnenolone, compared to placebo, pre-treatment will antagonize the acute effects of alcohol on the behavioral measures.
The purpose of this study is to determine whether brief motivational interviews reduce the likelihood of driving under the influence of alcohol (DUI).
In this study, 140 heavy drinking young adults (aged 18-25) will be provided with brief counseling and either naltrexone, a medication that is FDA-approved for the treatment of alcohol dependence, or placebo over the course of 8 weeks. A novel strategy will be used for administering low-dose naltrexone, in which daily dosing will be combined with targeted dosing in anticipation of high-risk situations. The main hypotheses are that daily + targeted naltrexone will result in greater reductions in frequency of heavy and any drinking compared with daily + targeted placebo.
The aim of this study is to develop information about the acute and residual effects of a new product being targeted to young adults. Using a double placebo-controlled 2 X 2 factorial model study design, we will compare the acute and residual effects on driving impairment of caffeinated alcohol, non-caffeinated alcohol, caffeinated placebo, and non-caffeinated placebo. Under the alcohol conditions, participants will receive sufficient alcoholic beverage to attain a blood alcohol concentration (BAC) of .12 g%. Participants will be 144 undergraduate and graduate students, and recent college graduates.
The purpose of this study is to determine if a brief counseling intervention, delivered by telephone, is more effective than standard ED care, to reduce future alcohol related injuries and alcohol related negative consequences, among patients treated in the ED for injuries from an MVC and other injury mechanisms.
To evaluate the effect of the threat of an aversive reaction on the response during alcohol cue exposure in alcohol dependent patients : (1) the subjective response (craving) and (2) the physiological response (heart rate and blood pressure).