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.
Kidney stone disease affects almost 10% of overall population, often requiring a surgical intervention. Currently, shock wave lithotripsy is considered a first-line treatment option for patients suffering from symptomatic kidney stones smaller than 2.0 cm, providing reasonable stone-free rate. Actually, the outcomes from SWL vary largely due to several factors including stone burden, stone density, stone-skin distance (SSD), and patient's body habitus. Furthermore, the imaging exam modality (i.e. ultrasound versus computed tomography scan) performed to assess the presence of residual fragments also impacts on SWL outcome analysis. We aim to perform a well-controlled prospective evaluation of all variables that may impact on fragmentation and clearance of lower pole calculi after SWL. These variables are assessed exclusively by a noncontrast computed tomography scan (NCCT), eliminating the necessity of an intravenous urography to study renal collecting system anatomy; an imaging exam that is not routinely performed anymore for kidney stone patients.
Considering the widespread use of sodium fluoride (NaF) and monofluorophosphate (MFP) based toothpastes, the present study aim to evaluate F availability in saliva after use of the top-selling Brazilian toothpastes. In a blind, crossover clinical trial study, volunteers will brush their teeth with one of the following toothpastes: 1) non-fluoride toothpaste (negative control group); 2) NaF/silica based toothpaste 3)MFP/calcium carbonate based toothpaste. After brushing, a rinse with purified water will be performed. Unstimulated saliva will be collected before and up to 60 min after brushing. Ionic fluoride and total soluble fluoride (corresponding to the sum of fluoride as ion and as MFP) will be determined after acid treatment of salivary samples to hydrolyze MFP. Fluoride will be determined using an ion selective electrode.
The objective of the present study is to investigate the effect dexamethasone and hyaluronic acid have on hearing preservation
This single-arm, open-label, multicenter extension study will provide continued bevacizumab therapy to participants with solid tumors who were previously enrolled in a Roche/Genentech sponsored study and who derived benefit from the bevacizumab therapy. Participants will receive the same dose and regimen of bevacizumab as used in the previous parent trial and continue this treatment until progression of disease or unacceptable toxicity, withdrawal of consent or death whichever occurs first.
This is a randomized controlled trial with blinded assessor on the effects of aerobic exercise (walking)in patients with Ankylosing Spondylitis.
Effectiveness of an art therapy program for the treatment of pain and improvements in both quality of life and body image of patients with fibromyalgia.
The purpose of this study is to evaluate whether extended prophylaxis with oral betrixaban can prevent blood clots in the leg and lung that sometime occur in patients hospitalized for an acute medical illness and to compare these results with standard of care enoxaparin. The safety of betrixaban will also be studied.
This study provided access to pasireotide sc in patients with Cushing's disease.and provided additional information for safety and efficacy of pasireotide s.c.
Introduction- Primary prevention is the main strategy to control the global burden of cardiovascular disease. In clinical practice, food restriction represents a valuable preventive resource. However, low adhesion rates and diet abandonment are considered important obstacles in treatment. Considering the discovery of new markers and mechanisms that relate food restriction and to all other cardiovascular risk factors, it is possible and necessary to seek for efficient alternatives to increase adherence and effectiveness of the preventive dietetic treatment. Surgical procedures can be used as a mechanism to promote food restriction. The bariatric surgery have gained importance not only for its potential application in obesity treatment but also in the control of cardiovascular risk factors refractory to medical treatment. Among bariatric operations, there is a group called digestive adaptations III that has specific characteristics.This surgical intervention modifies intestinal tract by reducing gastric volume and performing an anastomosis between ileum and stomach, creating a bipartition in the gut. This structural modification promotes satiety and increased insulin sensitivity more intensely than other surgical strategies. The effects of Digestive Adaptation III surgery on cardiovascular risk factors and on markers related to the development of atherosclerosis are not yet established. Objectives - To investigate the effect of Digestive Adaptation III surgery on clinical and laboratory parameters and cardiovascular risk factors. Methods - Twenty diabetics volunteers refractory to medical treatment and who have abdominal obesity will be included in the study. Of this group, half will be randomly selected to perform the Digestive Adaptations III surgery. All participants will undergo clinical and biochemical tests on the same occasions, up to thirty days before surgery, three twenty-four months after surgery. On these occasions besides the lipid profile and glucose, we will determine incretin hormones, adipokines and assess the amount of epicardial fat.
The monitoring of diabetics by the pharmacist may contribute to the effectiveness of drug treatment and to improve their quality of life. This study will measure the impact of pharmacotherapeutic follow-up in diabetic patients. This will be a clinical trial, single blind, controlled, randomized, conducted in two units of pharmacies in Brazil. Only in the intervention group will be held the pharmacotherapeutic follow using a methodology called the practice of pharmaceutical care, which identifies and resolves problems related to drugs. The primary outcome is glycated hemoglobin, and secondary outcomes are baseline glucose, total cholesterol and its fractions LDL, HDL and VLDL, all these measures will be made in the intervention group and control group. Patients will be followed for 24 weeks, and the outcomes will be assessed up to 24 weeks. There will be a confidence interval of 95% and a significance of p <0.05, and will use the Student t test, chi-square analysis of variance (ANOVA) and others if necessary. Expects good results and serve as a model for other researchers.