Evaluation of Oral Tobacco as a Harm Reduction Method for Smokers

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

View full results

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

104 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-08-31

Study Completion Date

2010-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Recently, tobacco companies have developed new oral tobacco products that are purportedly less harmful than conventional tobacco products. These products have not been tested by independent research for their health effects or consumer palatability. In addition, it is not known if these products will be used in addition to cigarette smoking or as a substitute to cigarettes. These two studies will examine four oral tobacco products to answer some of these questions.

The goals of this first study will be to examine: 1) the brand of oral tobacco products which is preferred by cigarette smokers and the pattern and amount of product use when used as a switching tool; 2) the characteristics that are associated with product choice; 3) nicotine exposure from these products; and 4) the withdrawal symptoms from the tobacco products and potential for continued use.

Specifically, our primary aims hypotheses were: 1) the product that will be chosen by most smokers will be based on taste and sensory aspects of the product with products higher in nicotine content more likely to be chosen as the preferred product; and 2) subjects will experience no difficulty using the product for complete cigarette substitution, but a small minority will engage in dual product use.

For the secondary aims, we hypothesized: 1) that compared to the subjects' own brand of cigarettes, the biomarkers for exposure for the oral tobacco products will be significantly lower; 2) withdrawal symptoms from the oral products are likely to occur, but are likely to be mild compared to cigarette withdrawal.

Related Clinical Trials

Explore similar clinical trials based on study characteristics and research focus.

Efficacy of Oral Tobacco Products Compared to a Medicinal Nicotine

NCT00710034

Tobacco Use Disorder

COMPLETED PHASE2

Methods Project 4: Clinical Trial

NCT01867242

Smoker

COMPLETED NA

Influence of Authorized Smokeless Tobacco Product Modified Risk Claims II: Laboratory Assessment of Sensory and Subjective Effects

NCT07107139

Smokeless Tobacco

RECRUITING NA

Abuse Liability and Appeal of Oral Nicotine Products

NCT06506162

Nicotine Dependence

RECRUITING NA

Human Laboratory Study of Smokeless Tobacco Products

NCT01100216

Smokeless Tobacco

WITHDRAWN NA

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

This study will be accomplished by allowing subjects to sample the products and choose one oral tobacco product that they will use instead of cigarettes for a two week period. After the two weeks, they will discontinue all tobacco use and withdrawal symptoms and abstinence rates will be observed.

Subjects will attend an orientation visit where the study will be explained in detail. Interested subjects will sign a consent form and be scheduled to return for baseline measures. Subjects will have a review of medical history to verify that they are in generally good health and do not have contraindications to the study products. Eligible subjects will collect one week of baseline measures while smoking at their normal rate: measures include daily diaries of smoking, questionnaires and urine samples. At the second baseline visit, they will receive samples of the oral tobacco products. The tobacco products tested are five novel oral products recently introduced to the market: 1) Camel Snus (higher nicotine); 2) General Snus (higher nicotine); 3) Marlboro Snus (lower nicotine); and two compressed tobacco tablets, 4) Ariva (lower nicotine), or 5) Stonewall (higher nicotine). All of these tobacco products are purported to have reduced levels of tobacco-specific nitrosamines.

During sample weeks, subjects will be given 10 pouches/tablets of each product in a within-subject design and instructed to use at least three of the daily products in the morning of sample day and resume smoking in the afternoon and through the following day. They will sample the next product in a similar manner. The order of product was randomized. All subjects will sample all five products. This design will allow a short, but adequate trial of each product to determine preference. After the sampling weeks, subjects will choose the product they will want to use to quit smoking. They will be supplied that product over the next two weeks.

During the two weeks of product use during smoking abstinence, subjects will come to weekly clinic visits and then a follow-up visits at 1 week and a phone call at 4 weeks after the end of treatment. At baseline, and 2 weeks post cigarette cessation, subjects will bring in a urine sample from their first morning void and bloods will be drawn. At each visit, subjects will have vital signs obtained (blood pressure, heart rate, weight and carbon monoxide level), they will complete several subjective forms regarding tobacco use, withdrawal symptoms, and mood. Subjects will receive brief behavioral counseling for smoking cessation at all visits.

In addition, during the sample weeks and at the end of two weeks of study product use, subjects will submit three used chews that will be sent to CDC to be analyzed for the tobacco constituents.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Tobacco Use Disorder

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NON_RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Open label trial

Intervention Type OTHER

All subjects will sample General Snus and determine if they would prefer to use this product during the abstinence phase over the other products sampled. Sampling period (duration: 1/2 day) requires use of at least 3 samples of General Snus. Intervention period (duration: 2 weeks) involves ad libitum daily use (if General Snus is chosen for use) during abstinence phase.