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Role of Metabolites in Nicotine Dependence (1) - 1

Role of Metabolites in Nicotine Dependence (1)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00000284
Enrollment
0
Registered
1999-09-21
Start date
1995-02-28
Completion date
2001-12-31
Last updated
2017-01-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Tobacco Use Disorder

Keywords

nicotine dependence

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.

Interventions

Sponsors

University of Minnesota
CollaboratorOTHER
National Institute on Drug Abuse (NIDA)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
21 Years to 45 Years
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frame
Subjective effects
Physiological effects
Performance effects

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026