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.
Objective: Compare venous occlusion rates at a one-year follow-up comparing 1920-nm versus 1470-nm laser treatment. Design: Non-randomized prospective study. Methods: Adult patients with varicose veins associated with great saphenous reflux were included. Procedures were performed between February and April of 2013. The 1470-nm laser ablation was performed in continuous mode, power being set between 8 and 10 W, while for the 1920-nm it was set between 5 and 6 W. Checking for vein closure was performed during the thermal ablation procedure, LEED (linear endovenous energy density) being calculated after the procedure. Follow-up data were collected at the 7-day, 30-day, 3-month, 6-month and 1-year visits, and involved clinical and ultrasound evaluation, measurement of occlusion extent.
Patients will be randomly assigned to two separate groups. Both patient groups will be evaluated using the WHOQOL-BREF questionaire. Evaluations will be carried out just before the study begins and at intervals of six months during a period of one year for a total of three evaluations. Group one will be made up of patients who will begin homeopathy or acupuncture or anthroposophic medicine treatment and patients from group two will start homeopathy or acupuncture or anthroposophic medicine six months after the beginning of the study. Each one of these three research branches will be done independently (Homeopathy versus control; Acupuncture versus control; Anthroposophic Medicine versus control). Conventional medical treatment will be available for all patients in both groups. A data sheet will be filled out on each patient with data as to age, education level, marital status and the patient's own perception of their health status. During the interviews the interviewer will have no influence whatsoever over the respondents' answers. Integrative/complementary or traditional medicine doctors do not participate in the research and will not be informed about which patients are participating in this project, and as such the research will be blinded for these doctors. Minitab software, version 16, was used for sample calculation through the module Power and Sample Size. Sample calculation option for paired t-tests before and after intervention demonstrated the need to randomize 906 patients: 450 patients for homeopathy branch (225 patients in the homeopathy group and 225 patients in the control group), 228 patients for acupuncture branch (114 patients in the acupuncture group and 114 patients in the control group), and 228 patients for anthroposophic medicine branch (114 patients in the anthroposophic medicine group and 114 patients in the control group).
Prospective, single center, randomized and non-inferiority study, to include up to 60 patients with de novo coronary artery disease. Patients will be followed at 30 days, 3, 6 and 12 months. At 3 months all patients will be submitted to angiographic and OCT evaluation.
The purpose of this study is to determine if abatacept is effective in the treatment of early rheumatoid arthritis.
The purpose of study was to test whether rivaroxaban added to standard of care treatment, when compared to placebo, had the potential to reduce the incidence of the clinical events related to the clots and complications of the heart and brain (CV death, MI, or stroke) or the legs (acute limb ischemia or major amputation) in patients who had undergone recent procedure(s) to improve the blood flow of their legs.
To study the effects of compression stockings on sleep apnea in hemodialysis patients with diagnosed obstructive sleep apnea. The rationale of this study consists in the fluid shift theory, which consists in the nocturnal rostral fluid shift from legs, which causes upper airways edema. The aim of this study is to evaluate if compression stockings could improve such nocturnal volume redistribution and, therefore, improve obstructive sleep apnea.
BACKGROUND: Mesh nebulizers (MN) have lower residual volume and increased inhaled dose compared to jet nebulizers (JN) per in vitro and animal models. The aim of this study was to compare radioaerosol deposition using MN and JN in healthy subjects, using 2-D planar scintigraphy. METHODS: A randomized trial in 6 normal subjects (4 female, 2 male) inhaled 99mTc-DTPA with an activity of 1 mCi with the normal saline to a total dose of 4 mL with JN (Misty Max, Air Life, Yorba Linda, USA) oxygen flow of 8 L / min and 1.5 mL with MN (Aeroneb Solo with Ultra adapter; Aerogen Galway, Ireland). Scintigraphy was used to determine distribution of deposition and mass balance between compartments.
This trial is conducted in Africa, Asia, Europe, North America and South America. The purpose is to compare long-term glycaemic control of insulin degludec/liraglutide (IDegLira) versus insulin glargine (IGlar) in insulin naïve subjects with type 2 diabetes mellitus inadequately controlled with oral anti diabetics.
Cervical stenosis may occur in up to 19% after conization. It is a cause of infertility and amenorrhea. This study will test a new device named DUDA Device ("Dispositivo Uterino para dilatar canal endocervical") placed just after the conization, in order to evaluate the safety, efficacy and quality of life.
The aim of this study is to evaluate, through a pilot study with about ten cases, if bilateral ventral capsulotomy by linear accelerator enable modification of obsessive-compulsive symptoms and quality of life in patients with severe and refractory obsessive compulsive disorder (OCD) and also investigate possible adverse effects / complications of the procedure.