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.
Metformin is one of the most commonly prescribed drugs worldwide for the treatment of Type 2 Diabetes. It has been currently used for the treatment of: polycystic ovary syndrome, gestational diabetes, metabolic syndrome and obesity. In patients with polycystic ovary syndrome (PCOS) the adverse side effects are a frequent cause for treatment discontinuation. In every day medical practice lower doses of Metformin are administered searching for the continuation of the treatment. However, there is no clinical study to support this assertion. The objective of this study is to monitor and correlate the therapeutic effect of Metformin on patients with PCOS taking daily doses of 1500mg and 1000mg.
2 phytomedicines already in the market: GAMALINE® for premenstrual syndrome and HIPERICIN® as antidepressant will be prescribed together for treating women with Premenstrual Syndrome (PMS) symptoms and vasomotor problems for checking the advantage compared to the GAMALINE® prescription alone.
Restless legs syndrome and periodic limb movement (PLM)are sleep-related movement disorders and studies have shown changes in striatal dopaminergic activity in patients with these disorders. Physical exercise has been shown to improve the symptoms of restless legs syndrome and PLM, as has treatment with dopamine agonists. However, the mechanism by which physical exercise acts as a non-pharmacological treatment in improving symptoms of restless legs syndrome and PLM remains unknown. The investigators evaluated dopamine transporter density profiles in 16 sedentary patients (control and experimental - with PLM, groups) and the influence of acute physical exercise on its concentration after a maximal exercise test. Each patient underwent baseline polysomnography to evaluate sleep patterns and PLM index values. After obtaining the polysomnography baseline, the single photon emission computer tomography baseline was determined. Subsequently, the volunteers performed a maximal exercise test in the morning, followed by a single photon emission computer tomography two hours later and polysomnography that night, to assess the effect of acute physical exercise on dopamine transporter and sleep patterns. The results showed significant lower dopamine transporter baseline densities in the striatum region for the experimental group. The results also showed a significant reduction in the periodic leg movement rate in the experimental group and a significant increased percentage of stage-1 non-REM sleep in both groups after maximal exercise test. Significant differences between the groups were only observed for Stage 2 sleep and slow wave sleep. Our results show that patients with PLM had a lower dopamine transporter density in the left putamen region compared to the control group and an acute physical exercise (maximal exercise test) did not alter this profile, providing evidence that this improvement is the result of chronic physical exercise.
To demonstrate the bioequivalence of saxagliptin and metformin in a saxagliptin, 5-mg/metformin extended-release (XR), 500-mg, fixed-dose combination (FDC) tablet with saxagliptin, 5-mg and metformin, 500-mg XR tablets administered together in both the fasted and fed states. In addition, to demonstrate the bioequivalence of saxagliptin and metformin in a saxagliptin, 5-mg/metformin XR, 1000-mg, FDC tablet with saxagliptin, 5-mg and metformin, 1000-mg XR tablets administered together in both the fasted and fed states.
Rationale: Heart Failure (HF) elevated prevalence in Brasil and the world; 20-30% AHF patients develop CardioRenal Syndrome (CRS) type 1; Worsening Renal Failure (WRF) is a prognostic marker of mortality in Acute HF;NGAL is a novel biomarker of Acute Kidney Injury released in 2 hours, and addressed in several different clinical scenarios(contrast injury, cardiopulmonary bypass, critical illness. Hypothesis: Admission NGAL predicts CRS in AHF patients admitted to the Emergency Room (ER). Primary goal: To evaluate the diagnostic accuracy and the best cutoff value of urinary NGAL to predict the development of CRS type 1 in patients admitted to the Emergency Room. Secondary goals: 1- To evaluate the prognostic impact of NGAL on in-hospital adverse outcomes (length of hospitalization, death, institution of renal replacement therapy, use of vasoactive drugs, mechanical ventilation).2- Evaluate the prognostic impact of NGAL in adverse outcomes in 30 days, 60 days and 6 months (death, rehospitalization, institution of renal replacement therapy).3- Identify clinical and hemodynamic characteristics of Acute HF that can influence the evolutionary behavior of NGAL levels in 48 hours.4- Identify the association of drugs commonly used for HF management, which might influence the evolutionary behavior of NGAL levels in 48 hours.5-Assess the impact of NGAL results in clinical decision making. Methods: Observational, prospective, blinded study. Population: Acute HF patients admitted to the ER of Hospital Pró Cardiaco and Hospital Antonio Pedro - Universidade Federal Fluminense. Statistics: Convenience Sample size (n=180); determination of best cut-off: ROC analysis; Predictive performance of the cut-off: sensibility, specificity, likelihood ratio, predictive value, accuracy; Identification of variables to predict CRS: logistic regression and square-Qui test; Correlations analysis of normally distributed variables: Pearson's linear correlation test; Mean values for normally distributed variables: Mann-Wittney test; Significance on p<0,05; Intra-assay variation analysis. Study chronogram: Recruitment: 12 months; Results analysis and conclusions: 60 days; Manuscript preparation for paper submission: 30 days.
Objective: To assess the relationship between maternal cardiovascular capacity and aerobic water exercise during the gestational periods of hemodynamic overload. Study design: randomized clinical trial, with 41 healthy pregnant women assigned to one of two groups: Control and Water exercise. Maternal cardiovascular capacity (maximum oxygen consumption, cardiac output, stroke volume, heart rate and mean arterial pressure), physical performance (relative HR, treadmill speed and self-perceived exertion) and neonatal outcome (gestational age, weight, Apgar index and length of infant's hospitalization) were assessed. Means were evaluated by dependent and independent t-tests, and proportions by the chi-square method (p<0.05). Results: The control variables showed that the groups were homogeneous. Water exercise was associated with maintenance of VO2max, increase in stroke volume and cardiac output, and better performance on stress tests in the third trimester of gestation. No significant difference in neonatal variables was observed. Conclusion: Water exercise maintained cardiovascular capacity and performance under submaximal stress, and did not affect hemodynamic adaptation to gestation or neonatal outcome.
Diagnosis of tuberculosis (TB) is a challenge because sputum smear, the most rapid and inexpensive test, often fails to detect the disease, in around 20 to 30% of cases. Culture of sputum yields a correct diagnosis in up to 90% of cases, but results are only available in 4 to 8 weeks, depending on the method. A new test (Xpert MTB/Rif) based on a rapid technique, named polymerase chain reaction (PCR), detects TB in less than 2 hours over 95% of cases, in addition to identification of cases resistant to certain drugs used to treat TB. The test is expensive, but several studies have demonstrated its accuracy, and since most steps are automatized, savings can be expected from human resources work. The aims of our study are (1) to evaluate this tool as a substitute test for sputum smears in routine conditions; (2) evaluate if it is cost-effective, meaning that effectiveness of the test may outweigh the extra cost, and (3) evaluate the acceptability of the test among patients and health care workers.
Introduction: Hypertensive emergency in pregnant women with pre-eclampsia should be treated for preventing stroke and placental abruption. However, the benefit of antihypertensive medication maintenance remains unclear, mainly due to the potential risk of fetal growth restriction.
The purpose of this study is to compare the efficiency of neuromuscular electrical stimulation and of resisted exercises on increasing quadriceps strength, decreasing pain and on recovering motor function of patients with knee osteoarthritis.
The purpose of this study is to determine the possible effect nephroprotective of N-acetylcysteine in patients with chronic kidney disease undergoing elective coronary artery bypass grafting by serial evaluation of renal function and to evaluate whether treatment reduces cardiac mortality, cardiac events and Global mortality, if it interferes with oxidative stress and inflammation and the need for dialysis.