Clinical trial NCT00000284: Role of Metabolites in Nicotine Dependence (1) - 1
Official title: Role of Metabolites in Nicotine Dependence (1)
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: Tobacco Use Disorder
Keywords: nicotine dependence
Lead sponsor: National Institute on Drug Abuse (NIDA)
Sponsor class: NIH
Collaborators: name: University of Minnesota
First posted: 1999-09-21
Enrollment: 0
Sex: ALL
Minimum age (years): 21
Maximum age (years): 45
Standard ages: ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Primary purpose: TREATMENT

Brief summary: The purpose of this study is to determine the effects of cotinine with or without a transdermal nicotine replacement on tobacco withdrawal symptoms.

Detailed description: The purpose of this study was to determine the effects of a metabolite of nicotine, cotinine, on tobacco withdrawal symptoms. Cotinine has been shown to have psychoactive effects that are similar as well as different from those of nicotine, however, little research has been conducted examining the role cotinine plays in nicotine addiction. This study compared the effects of cotinine with the nicotine patch, and a combination thereof on tobacco withdrawal symptoms. The results showed that cotinine antagonizes the beneficial effects of the nicotine patch in reducing withdrawal symptoms.

Eligibility criteria: Inclusion Criteria:

Male or female subjects, aged 21-45 yrs inclusive, with a smoking history of at least 1 pack of cigarettes daily for at least 1 year. Subject must be in good health as verified by medical history, screening exam, and screening laboratory tests. Subject must provide written informed consent to participate in the study and be motivated to stop smoking for a short term.

Exclusion Criteria:

History of myocardial infarction, angina pectoris, sustained or episodic cardiac arrhythmias, symptomatic peripheral vascular disease, peptic ulcer disease or any other medical condition which the physician or investigator deems inappropriate for participation, insulin-dependent diabetes; pregnant or lactating or not using adequate birth control methods; requirement of any form of regular psychotropic medication (antidepressants, antipsychotics, or anxiolytics) and recent psychiatric history; chronic use of systemic steroids or antihistamines; skin sensitivity which would preclude use of a transdermal system; abuse of alcohol or any other recreational or prescription drug; use of any other tobacco products, including smokeless tobacco and nicotine products; previous use of transdermal nicotine system; inability to fulfill all scheduled visits and examination procedures throughout the study period.

Primary outcomes:
measure: Subjective effects
measure: Physiological effects
measure: Performance effects
Secondary outcomes:
Other outcomes:
Locations:
city: Minneapolis
country: United States
facility: University of Minnesota
state: Minnesota
Study officials:
affiliation: University of Minnesota
name: Dorothy Hatsukami, Ph.D.
role: PRINCIPAL_INVESTIGATOR
References:
citation: presented at Society of Research on nicotine and tobacco Psychopharmacology 1998. Presented at Society of Research on Nicotine and Tobacco Psychopharmacology (in press)