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.
The purpose of this study was to determine whether the initiation of a vildagliptin plus metformin combination regimen would result in more durable glycemic control than metformin monotherapy in treatment-naïve patients with type-2 diabetes mellitus (T2DM).
Objective: The purpose of this study is to determine the etiology of the weight increase in Depot-medroxyprogesterone Acetate (DMPA) users. Method: Prospective study with 100 women, aged 18-40 years old and BMI < 30kg/m², paired with users of a non hormonal method follow for two years. Will be included only women who never used DMPA. There will be evaluated habit, blood pressure, anthropometric measure, distribution of corporal fat, lipids profile and glycemia parameters every six months. Thirty women and their control group will performed a euglycemic-hyperinsulinemic clamp to evaluate the resistance of insulin, adiponectin,neuropeptide Y, apolipoprotein A/B and arterial evaluation with ultrasound, intimal and media measure. Anova analysis for repeated samples. The metabolic alterations should elucidate the etiology, and the beginning of the sub clinical cardiovascular disease should be shown/discarded with the arterial evaluation.
Stroke is one of the main public health problems in America Latina. It can be associated with several neuropsychiatric complications, which include a broad spectrum of emotional distress and cognitive, results in important clinical implications for the prognosis of these patients. Depression is a common complication, affecting around 5-72% of patients and is associated with various cognitive deficits and also with increased mortality - up to 50% more deaths compared to non-depressed patients. Treatment of depression after stroke is important not only to improve depressive symptoms but can also be beneficial for cognitive deficits, activities of daily living. and leads to increased survival for these patients. There are different treatments for depression after stroke, all showing inconclusive results, even though antidepressants have been effective in some groups of patients, tolerability and treatment adherence were not very good-so it is necessary that new therapeutic modalities are presented with good tolerability. In this sense, transcranial direct current stimulation (tDCS) is an interesting technique that can provide interesting results, which proved to be effective for depression in some studies. This study proposes to investigate the effect of tDCS for the treatment of major depressive disorder after stroke. The proposed design is a clinical trial, randomized, double-blind, placebo-controlled study in a subsample of participants in the prospective cohort of stroke: Study of Morbidity and Mortality of stroke. They will be allocated to one of the groups: sham or active tDCS group. Participants will receive ten consecutive days of active or sham stimulation and return at the end of two weeks to evaluate the improvement in depression, cognition and functionality. As objectives, the investigators expect to see a clinical improvement of depression through scales like Hamilton, Beck and MADRS(Montgomery-Asberg Depression Rating Scale), and expect improvement on cognitive tests as MoCA (Montreal Cognitive Assessment), MMSE (mini mental scale exam), FAB (frontal assessment battery) and trail test. Another goal is to see improvement in markers related to depression as BDNF, cortisol, interleukins and heart rate variability. With all this, the investigators hope to offer a new treatment, and effective with few side effects to treat depression after stroke.
This is a randomized crossover study, designed to evaluate if the manual expiratory rib cage compression technique improves respiratory mechanics and is effective in secretion removal in mechanically ventilated patients.
Introduction: Oxaliplatin (Ox) is a frequently used platinum-based medication that is a part of many chemotherapy regimens for the treatment of several gastrointestinal malignancies. One of the most important limitations to its use is the induction of both acute and chronic peripheral neuropathy (PN). Previous studies have shown that vitamin E can reduce the incidence of cisplatin-induced PN by 50%. In this study, the investigators aimed to determine if vitamin E could also prevent Ox-induced acute PN
This trial is conducted in Asia, Europe, Oceania and South America. The aim of this clinical trial is to generate data demonstrating how to intensify diabetes treatment using BIAsp 30 (biphasic insulin aspart 30) by adding or substituting BIAsp 30 to sitagliptin in various regimens for type 2 patients inadequately controlled on sitagliptin and metformin (with or without other oral anti-diabetic drugs (OADs)). The trial is conducted as a phase 4 trial in the majority of the participating countries. However, in some countries the trial is conducted as phase 3b.
Neurally-Adjusted Ventilatory Assist (NAVA) is a ventilatory mode that uses the electrical activity of the diaphragm to control the mechanical ventilator, offering inspiratory assistance in proportion to respiratory effort to patients who need artificial ventilatory support. It has been shown to improve the interaction between the patient and the mechanical ventilator in several clinical situations, but no previous studies have tried to use it for patients with a severe type of respiratory insufficiency, called Acute Respiratory Distress Syndrome (ARDS). Patients with ARDS benefit from a mechanical ventilatory strategy that includes low inspiratory volumes (tidal volumes) and limited airway pressures, but the application of such strategy frequently requires high levels of sedation. The investigators' hypothesis is that NAVA can be used for patients with ARDS, and that it will not be associated with excessive tidal volumes or elevated airway pressures.
Principles of motor control suggest that breast hypertrophy can lead to sensoriomotor alterations and impairment in body balance due to postural misalignment. The investigators conducted this study to evaluate the postural control with different sensorial information condition in women with breast hypertrophy.
The purpose of this study is to evaluate the behavior of intravitreal injection of of autologous bone marrow stem cells in patients with age related macular degeneration.
There is evidence that gastrointestinal operations for non weight-losing purposes are beneficial for diabetes mellitus. Aiming to analyze such hypothesis, patients submitted to gastric bypass for morbid obesity, gastrectomy for gastric cancer and colectomy for colo-rectal cancer will be compared. The end point will be changes in fasting blood glucose and hemoglobin A1c concentration.