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.
This is a randomised study to be conducted in patients with severe to very severe Chronic Obstructive Pulmonary Disease (COPD) to establish whether there is a need for these patients to be continuously treated with an inhaled corticosteroid on top of two potent long-acting bronchodilators. The study also aims to identify the type of patients who are likely to benefit from inhaled corticosteroid maintenance therapy.
The present study was designed as a randomized, single blind, placebo-controlled, study to evaluate the effect of 400 µg of recombinant human GM-CSF applied intralesionally and associated with half of the total dose of antimony in a reduced time schedule (20mgSbV/Kg/d for 10 days) as compared to the full dose of antimony (20mgSbV/Kg/d for 20 days) to treat cutaneous leishmaniasis ulcers.
Intradialytic hypotension (IH) is a major complication during acute hemodialysis. The aim of this study was to evaluate the effects of dialysate temperature (DT) reduction with Na and ultrafiltration (UF) profiling on hemodynamics of critically ill acute kidney injury (AKI) patients submitted to sustained low-efficiency dialysis (SLED).
High blood pressure is the major risk factor for Cardiovascular disease (CVD). The prevalence of hypertension in Brazil was established in population-based studies conducted in different cities and States, varying from 22.3 to 44% of adults. The benefit of drug treatment of hypertension to prevent major cardiovascular events was consistently demonstrated in a large series of clinical trials controlled by placebo. Diuretics are at least as efficacious as other blood pressure-lowering drugs, are well tolerated, have longer duration of action and the advantage of very low cost to be used in a population intervention. Chlorthalidone is the more efficacious agent. Its main limitation is to induce hypokalemia in a proportion of patients, an adverse effect that can be antagonized by a potassium-sparing diuretic, as amiloride. A study comparing diuretic with an ARB agent is therefore recommendable in Brazil, in order to support the decisions of the Health Secretary in regard to blood pressure agents supply for the Brazilian population. Such a study was demanded and funded by the Health and Technology Ministries in Brazil.
The incidence of hypertension in individuals with pre-hypertension was 80% in ten years in a study conducted in Southern Brazil. The effectiveness of non-drug interventions to prevent hypertension is low in the long term. It may be hypothesized that a population-based drug intervention could reduce relevantly the burden of hypertension and cardiovascular disease. Diuretics are at least as efficacious as other blood pressure-lowering drugs, are well tolerated, have longer duration of action and the advantage of very low cost to be used in a population intervention. Chlorthalidone is the more efficacious agent. Its main limitation is to induce hypokalemia in a proportion of patients, an adverse effect that can be antagonized by a potassium-sparing diuretic, as amiloride. A study with this objective is therefore recommendable in Brazil, in order to support a plan of precocious intervention in individuals with pre-hypertension. Such a study was demanded and funded by the Health and Technology Ministries in Brazil.
The purpose of this study is to investigate whether preemptive medication with dexamethasone or etoricoxib provides better pain management and control than placebo following periodontal surgery.
This is a genetic association study of cognitive impairment in young bipolar disease type I patients without medications in mania, depression, hypomania or mixed states.
Nearly 20% of women do not return to their pré-gestacional body weight. The purpose of this study is to investigate the effect of diet and socio-demographics factors during gestation and postpartum period to body weight change after delivery. This is a clinical trial with 180 women interviewed at 1 (baseline), 2, 3, 4, 5 and 6 months postpartum. The dietary data were obtained by employing the Food Consumption Frequency Questionnaire with reference to the first and sixth months of postpartum.
The decreases of physiological capacities which take place with senescence include diminishing respiratory capacity as well as a reduction of heart rate variability and baroreflex sensibility. Altogether, these alterations increase elderly people's frailty and have a negative impact over quality of life. Since Yoga (Indian auto-discipline) has a wide range of respiratory exercises already investigated as components for non-pharmacological treatments for hypertension (situation in which heart rate variability is also diminished), the investigators hypothesis is that the training of respiratory exercises of Yoga may have a significant positive effect on heart rate variability and baroreflex of health elderly subjects, increasing quality of life and reducing frailty. We included 30 health elderly subjects (both sexes, from 60 years-old onwards) divided into 2 randomized experimental groups: control (C) and respiration (R). Each group underwent an entry evaluation, followed by a 4-months training period, after which they were re-evaluated. Control consisted of 2 stretching classes per week, and respiration consisted of 2 respiratory exercises classes a week. Both groups were instructed to perform the exercises at home twice a day, and to keep a record of each session in a log sheet. Evaluations were: WHOQOL-OLD questionnaire for quality of life, 20 minutes of seated rest with heart rate, respiration and blood pressure acquired continuously for further spectral analysis.
The purpose of this study is to evaluate the absorption of dietary supplement of vitamin D3 (cholecalciferol), through the variation of 25 (OH) D levels, as the fat content of the meal associated with the administration of the supplement.