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.
Phase 1: An observational study ( registry) will be conducted with the objective of documenting the practice of stroke treatment in brazilian and latin american hospitals. Phase 2: A cluster randomized trial aiming to evaluate the effect of a multifaceted strategy to increase evidence based treatments usage for stroke patients. The hospitals will be randomized into two groups: the multifaceted strategy group and the usual care group.
The study will assess the efficacy and safety of PF-06438179 and infliximab in combination with methotrexate in subjects with active rheumatoid arthritis who have had an inadequate response to methotrexate.
The objective of this study is to investigate the efficacy of a treatment based on Movement System Impairment based classification (MSI) model in patients with chronic non-specific low back pain.
The purpose of the study was to monitor the activity of periodontal disease and suggest potential biomarkers related to active periodontal disease in patients with chronic periodontitis (PD) associated or not with type 2 diabetes mellitus (DM), based on the evaluation of the profile of gene expression of periodontal sites and the evaluation of inflammatory salivary proteins. Two hundred and five periodontal patients were enrolled, but only 41 exhibited ≥ 1 mm attachment loss in at least three periodontal site (active sites) 2 months after non-surgical periodontal therapy. The final sample was: 21 patients with chronic periodontitis (PD group) and 20 with chronic periodontitis and diabetes (PD+DM group). Fifteen periodontal- and systemically healthy patients were included as control group. Saliva collection, glycated hemoglobin measurement, periodontal examination and radiographs were conducted before and 2 months after non-surgical periodontal therapy. Radiographic subtraction was performed from pairs of the radiographs. Measurements of the areas with density loss were recorded. Gingival biopsies of active and non-active sites with similar clinical parameters were harvested for Real Time Polymerase Chain Reaction Array gene expression analysis. Saliva samples were analyzed by Multiplex Cytokine Profiling Immunoassay for analysis of protein expression. The clinical attachment loss mean was higher in the PD+DM group (p<0.05). There was a high correlation between clinical attachment loss and darkened radiographic areas in active sites of the PD group and PD+DM group. When compared PD group to PD+DM, patients with diabetes had an up-regulated profile. Active sites of the PD group showed nine genes (specific chemokines, interleukins and receptors) differentially expressed with an up-regulated profile. Active sites of the PD+DM group showed six genes (specific chemokines, interleukins and receptors) differentially expressed with an up-regulated profile. After periodontal therapy, there was a reduction of some salivary proteins in both periodontal groups, but not significant. In conclusion, it was possible to identify genes differentially expressed in active sites from both groups, which may be considered useful in indicating potential biomarkers for the diagnosis of periodontitis; salivary proteins show a trend in distinguishing the standard of health and disease and may be used in the future as potential biomarkers of periodontitis with or without diabetes.
The purpose of this study is to verify the effects of exercise training on sympathetic modulation and arterial baroreflex control in patients with chronic heart failure.
A randomized controlled trial with rheumatoid arthritis patients will be realized. Patients will be randomized into two groups. Experimental group will do a 12 weeks training of progressive resistance exercise for global muscles and remain with the clinical treatment and the control only remain with the clinical treatment. Patients will be evaluated at baseline, after 6, 12 and 24 weeks.
The purpose of this study is to evaluate the efficacy, based on prostate-specific antigen (PSA) progression, of abiraterone acetate in participants with metastatic (spread of cancer cells from one part of the body to another) castration (any action, surgical, chemical, or otherwise, by which a male loses the functions of the testes) resistant prostate cancer (cancer in prostrate; a gland that makes fluid that aids movement of sperm) (mCRPC), chemo-naive (treatment of cancer is not done using drugs), who received a prior diethylstilbestrol therapy (DES).
The purpose of this study is to determine whether the hospitalized patients with increased waist circumference exhibit cardiorespiratory alterations after chest physical therapy.
The purpose of this study was to investigate the safety, tolerability, pharmacokinetics (PK) and potential for CFZ533 to replace calcineurin inhibitors (CNI), while providing a similar rate of acute rejection prophylaxis and renal function in a de novo renal transplant population receiving an allograft from standard criteria donors.
The null hypothesis of this study is that GCC, GIC and compomer have the same survival rate when used for the treatment of occlusal and proximal caries in primary molars with ART under field conditions. This research will be done under field conditions in Barueri, a city in the state of São Paulo, Brazil. A total of 600 patients will be selected. After 1, 6, 12, 18 and 24 months the restorations and teeth will be evaluated by two independent evaluators. Only children whose parent or representative who have signed an informed consent are included in this research.The ART treatments will be done by two dental students. The operators will receive the same ART-training. The children will be randomly assigned to one of the operators. The restorative material to be used in each child will be assigned by another random list. It will be performed descriptive analyses to describe the sample. Bivariate analyses will be performed to test the hypothesis. The data will be analyzed with a chi-square test to compare the survival rates of GIC and GCC. Some co-variables will be evaluated, such as: operator effect, the influence of the cavity size on the survival rate, the position of the tooth, the dentists preferred side, the child's dmft/DMFT, contamination and finally the preoperative conditions. The effect of these variables on the survival rate will be evaluated using a regression analysis.