Pharmacokinetic Study of Single Dose Dutasteride in Healthy Subjects
Completed · Not applicable
Conditions studied: Alcohol Related Disorders, Alcoholism, Alcohol Abuse
In brief
To monitor the inhibition of 5a-reductase (5AR) enzyme activity at 1, 3, 7, 14, 21, 28 and 42 days following administration of a single dose of dutasteride (2, 3, or 4 mg) by measuring the change in blood levels of 3a-androstanediol glucuronide (3a-diolG) and the ratio of dihydrotestosterone (DHT) to testosterone. To accomplish this aim, an open-label, between-subjects dose comparison study design will be employed with subjects receiving a 2, 3, or 4 mg dosage. Subjects (up to n=40 enrolled to allow a minimum of 24 completers) will be randomly assigned to one of the 3 dose levels. Results of this study will inform the dose selection for a subsequent placebo-controlled, within-subject, crossover study of dutasteride on the effects of alcohol. A secondary aim of this study is to examine the correlation of a genetic variation in the type I 5AR gene and baseline DHT/T ratio and effect of dutasteride at day 3. A variation in this gene which is one of the targets of dutasteride has been reported to be associated with higher baseline levels of DHT.
Key facts
- Study ID
- NCT00802321
- Run by
- UConn Health
- People needed
- 40
- Starts
- 2006-04-01
- Expected to finish
- 2006-11-01
- Last updated by the study team
- 2010-09-23
Who can join
Age: 21 and older, up to 55. Sex: male. Healthy volunteers: accepted.
You may qualify if…
- Subjects will be healthy males volunteers who are 21-55 years old and have a BMI >18.5 and <32.5. All enrolled subjects will have signed IRB approved consent.
You may not qualify if…
- Subjects cannot have a current or past DSM-IV diagnosis of alcohol or drug dependence, current or past 12-months diagnosis of alcohol or drug abuse or major psychiatric disorder, neurological illness, have had a hypersensitivity reaction to dutasteride, physical exam evidence of liver dysfunction, currently be using psychotropic medications or medications that are known to influence steroid hormone levels or metabolism. Nicotine-dependent subjects will be excluded to avoid the confounding effects of nicotine withdrawal during day-long laboratory sessions which are part of the planned alcohol administration study as well as effects of tobacco use on metabolism. Subjects who do not agree to use barrier contraception for 1 week after administration of dutasteride will be excluded
Where it is running
- Unversity of Connecticut Health Center — Farmington, Connecticut, United States
Full record on ClinicalTrials.gov
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