View clinical trials related to Healthy Smokers.
Filter by:To determine the effect of deep breathing exercises on lung function in healthy smokers.
The purpose of this study is to evaluate the bioequivalence of a new transdermal nicotine patch to that of a reference formulation following repeated applications
The purpose of this study is to compare the relative bioavailability of nicotine following repeated applications of a new transdermal formulation to that of a reference formulation. Up to day 7
The purpose of this study is to compare the relative bioavailability of nicotine following single application of a new transdermal formulation to that of a reference formulation. 4 single 24hour applications separated by 48hour intervals.
The purpose of this study is to determine the pharmacokinetic profile of nicotine following a single oral administration of three new nicotine lozenge formulations (V0474) in comparison with two reference products. The clinical and biological safety of V0474 and the lozenge acceptability will also be assessed.
The study's major aim is to investigate the ability of a commercial Electronic Nicotine Delivery Device (E-Cigarette) to induce long-term smoking reduction/abstinence in smokers unwilling to quit. Secondary aims are to investigate changes in withdrawal symptoms and cravings and to examine whether concomitant use of the E-Cigarette and smoking is safe. The study will monitor smoking reduction/abstinence effects, changes in withdrawal symptoms, and adverse events of a currently marketed device in Italy ("Categoria" electronic cigarette - "NO nicotine" cartridges). The primary hypothesis is that the E-Cigarette is a safe device that allows smoking reduction or abstinence in smokers possibly by suppressing withdrawal symptoms and cravings independently from nicotine delivery.
The study's major aim is to investigate the ability of a commercial Electronic Nicotine Delivery Device (E-Cigarette) loaded with low dose nicotine to induce long-term smoking reduction/abstinence in smokers unwilling to quit. Secondary aims are to investigate changes in withdrawal symptoms and cravings and to examine whether concomitant use of the E-Cigarette and smoking is safe. The study will monitor smoking reduction/abstinence effects, changes in withdrawal symptoms, and adverse events of a currently marketed device in Italy ("Categoria" electronic cigarette) using initially for 6 weeks "ORIGINAL" 7.4 mg nicotine cartridges followed by a further 6 weeks of "CATEGORIA" 5.2 mg nicotine cartridges. The primary hypothesis is that the E-Cigarette used in a structured protocol is a safe device that allows smoking reduction or abstinence in smokers possibly by suppressing withdrawal symptoms and cravings.
The study's major aim is to investigate the ability of a commercial Electronic Nicotine Delivery Device (E-Cigarette) to induce long-term smoking reduction/abstinence in smokers unwilling to quit. Secondary aims are to investigate changes in withdrawal symptoms and cravings and to examine whether concomitant use of the E-Cigarette and smoking is safe. The study will monitor smoking reduction/abstinence effects, changes in withdrawal symptoms, and adverse events of a currently marketed device in Italy ("Categoria" electronic cigarette - "ORIGINAL" 7.2 mg nicotine cartridges). The primary hypothesis is that the E-Cigarette is a safe device that allows smoking reduction or abstinence in smokers possibly by suppressing withdrawal symptoms and cravings.
Endotoxin is a component of outdoor air pollution, an air contaminant found in a number of different workplaces, and is even found in homes. The endotoxin used for this study is obtained from the National Institutes of Health, and is called "Clinical Center Reference Endotoxin", or CCRE. The purpose of this Phase 1 research study is to identify a dose of inhaled endotoxin that is safe (does not cause prolonged cough, shortness of breath or other problems), but causes changes in sputum cell samples that the scientists can measure. Phase 1 research studies like this one are not intended to be a treatment, but are a scientific investigation. Eventually, with these types of studies we will be able to examine why some people are more sensitive to endotoxin. Scientists at other universities have found that while most people do not have a considerable lung response to endotoxin at doses as high as 60,000 EU (endotoxin units), a few respond to as little as a total dose of 4500 EU. Our study is designed to identify if using a dose of 20,000 EU causes changes in the lung cells but does not cause symptoms in our study subjects. In our previous studies in our lab, using an endotoxin from another source, we have used higher doses (15,000 EUs) in subjects with asthma with no major problems, and we have used 10,000 EUs of CCRE in subjects who are current smokers without seeing any problems.
This pilot study will measure the baseline levels and the intra- and inter-subject variability of exhaled (alveolar and bronchial) and nasal NO in smoking subjects with mild and moderate COPD on or off steroid treatment, smoking healthy volunteers and non-smoking mild asthmatics off steroids, using multiple exhalation flow rates. I