There are about 10004 clinical studies being (or have been) conducted in Brazil. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
A clinical trial designed to compare the oral anticoagulation control obtained by an anticoagulation clinic and the usual medical care in Chagas and Non-Chagas disease patients.
The benefits of exercise training in heart failure are well established. Its effects, however, have not been evaluated in Chagas cardiomyopathy (ChC). The investigators hypothesis is that the exercise training may improve functional capacity, quality of life (QoL), and reduce brain natriuretic peptide (BNP) levels in patients with ChC.
Up to 40% of Obsessive-Compulsive Disorder (OCD) patients do not respond to conventional treatments (medications or behavior therapy). For some of them, a neurosurgical treatment can be indicated. Among various surgical techniques, Gamma Knife radiosurgery has the advantage of not requiring the production of burr hole openings in the skull. However, there are no randomized controlled trials of radiosurgical procedures. The investigators' aim is to investigate whether radiosurgery for the treatment of severe and refractory OCD is efficacious and safe, by a double-blind, randomized controlled trial. Forty-eight refractory OCD patients will be randomized into two different groups: the first one will receive standard radiosurgery; the second group will be submitted to a false radiosurgery ("sham operation"). Patients who had been previously submitted to sham surgery will be able to undergo real operations after one year of follow-up, when blinding is broken. For a minimum period of one year, patients will be periodically followed-up in terms of psychiatric changes (including OCD symptoms), global functioning, cognitive/personality changes and neuroimaging findings.
The primary objective of this study is to determine the alterations in quality of life and self-esteem after BOTOX® injections in the glabella in depressed and non-depressed patients. The secondary objective of this study are: - to assess wrinkles improvement - to evaluate depressive symptoms using Beck Depression Inventory before and after Botox® injections. - to elucidate that depression is not a contraindication for botulinum toxin injections.
The purpose of this study is to provide atazanavir or tenofovir-emtricitabine to HIV-infected subjects who have completed atazanavir or tenofovir-emtricitabine therapy on a previous BMS sponsored clinical trial
Recurrent or secondary pterygium often has often a growing fibrovascular tissue more exuberant than the primary. Histological findings differ from the primary, since the typical changes in the degenerate connective tissue are absent. The strong immunoreactivity and release of basic fibroblast growth (b-FGF) in cultured fibroblasts of recurrent pterygia suggest that fibroblasts may play an important role in pterygium recurrence. Tranilast used is an antiallergic drug that has an inhibitory effect on the release of chemical transmitters, such as histamine and leukotrienes from mast cells as well as a suppressive effect on vascular permeability.This drug also reduces TGF-β1 production and collagen synthesis in various cells. Tranilast might reduce pterygium recurrence by suppressing TGF-β1 synthesis in conjunctival fibroblast after pterygium surgery. The investigators want to confirm these findings and also compare the recurrence rate between the two types of surgery. Tranilast might be an alternative of mitomycin use, and also less toxic. This study aim to compare the effectiveness of preventing recurrence by using tranilast by topical subconjunctival administration previous to conjunctival autograft transplantation surgery in cases of primary pterygium, and will be perform clinical evaluation and TGF-beta-1 immunohistochemical detection by the anti-TGF-beta 1 antibody as well as fibroblast culture.
Embryo culture is a cornerstone of in vitro fertilization treatments. Usually, embryos are cultured in microdrops of culture media in incubators with controlled temperature, humidity and atmosphere. However, these culture systems are static, while in vivo the initial growth of the embryo takes place in the uterine tube and they are submitted to a dynamic environment. The aim of this study is to compare the embryo development on days 2 and 3 of culture morphological features of embryos under static and dynamic(microfluidics) systems of culture.
Coffee is a worldwide drink, been part of any culture. There are some concerns about effects of coffee on the health. Recently, epidemiological studies have shown benefits of coffee drinking to diabetics and also to prevent diabetes in populations. We aim to understand some effects of coffee and not only caffeine over vascular system, in special coronary artery disease patients, diabetics end normal people.
This study was designed to determine whether the duration of dressing wear following reduction mammaplasty influence skin colonization and surgical site infections rates.
This study primary objective is to compare the impact of two products containing budesonide and formoterol as individual capsules with inhalation powder for the pulmonary function of subjects with persistent asthma.