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Discover 17,868 clinical trials near Massachusetts. Find research studies in your area.
Showing 17361-17380 of 17,868 trials
NCT00661245
The TOGA® trial is a prospective, multi-center, randomized sham-controlled trial designed to determine the safety and effectiveness of the TOGA System for the treatment of morbid obesity. The study will also determine the effect of the treatment on co-morbidities and quality of life. Subjects will be blinded to treatment or sham. Sham arm may crossover to TOGA treatment at 12 months.
NCT00373126
It has been suggested that patients with schizophrenia smoke in order to produce amelioration of dysfunctional dopaminergic pathways allowing them to experience pleasure and satisfaction and overcome anhedonia. No studies have assessed the effects of nicotine withdrawal on reward responsivity in patients with schizophrenia. The investigators believe that an understanding of this is crucial if improved treatments for nicotine dependence are to be developed for this patient population. If this group already has deficits in reward responsivity as a symptom of the disease then they may be particularly prone to the effects of nicotine withdrawal on reward systems. Smoking cessation may lead to a further decrease in their responsivity to pleasurable stimuli and worsening anhedonia. Treatments for smoking cessation may need to ameliorate any increased deficits if they are likely to be effective in patients with schizophrenia.