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.
Evaluation of metabolic profile of users of hormonal and non-hormonal contraceptives during five years follow-up
No previous studies have evaluated the frequency and severity of Chronic Obstructive Pulmonary Disease (COPD) symptoms over a period of 24 hours (early morning, daytime and nigth-time symptoms) in stable COPD patients seen in clinical practice in Brazil. COPD is a common disease seen by primary care physicians and one of the most common diseases referred and diagnosed by pulmonologists. According to previous studies, symptoms of COPD can have a substantial impact on patients' quality of life and present a considerable degree of variation for the same degree of airflow limitation. The objective of this study is to learn more about the burden of symptoms in the real-world population of COPD patients in Brazil. With the real life data coming from this study, it will be possible to describe 24-hour COPD symptoms in Brazil and their impact on patients' quality of life and other PROs, the relationship with patients´ behaviour regarding adherence to respiratory medication and burden of COPD symptoms in terms of the impact on health economics. In the present study, the investigators will assess and characterize COPD symptoms over a period of 24 hours, by collecting information about the respiratory symptoms experienced at different times of the day and night in patients with stable COPD under real clinical practice conditions. In addition, the investigators will evaluate the correlation between each of these symptoms and the GOLD classification, adherence to respiratory treatment, level of dyspnea, disease severity, comorbidities and physical activity. Finally, the investigators will assess the relationship between 24h symptoms and direct cost related to treatment and HRU in the previous year to assess the burden of COPD symptoms. The present study is based on a similar protocol applied in Latin-American patients, the LASSYC Study. Extracted data will be used for a Brazilian analysis of these outcomes and may be used in future analyses combined with the results of LASSYC Study for a global view of Latin America.
The transfer of frozen / thawed embryos has been routinely performed in the last 30 years as part of Assisted Reproduction treatment (ART). Currently, more than 50% of couples submitted to ART have surplus embryos eligible for freezing followed by transfer in subsequent cycles. Therefore the selection criteria for the thawed embryos to be transferred must be rigorous in order to maximize pregnancy and of live birth rates. Usually, the evaluation of the embryos before transfer can be performed based on blastomeres survival after a short culture period between thaw and embryos transfer, i.e., 2 to 5 hours, or based on embryo development over a prolonged period of culture (18h to 24h). Post-thaw embryo culture might have an impact on the recovery of mitosis and normal cellular functions. However, until now, there is no consensus in the literature on which post-thaw culture interval has a better impact on pregnancy and live birth rates. Also, blastocysts formation after freezing/thawing of embryos at cleavage stage may bring relevant information about post-thaw culture. Moreover, this strategy can be used as an alternative treatment. Therefore, the authors proposed this prospective randomized, triple-blind study to evaluate the impact of post-thaw embryo culture on the pregnancy and live birth rates.
The purpose of this study is to explore the antiviral effect of JNJ-53718678 at 2 dose levels (80 milligrams [mg] and 500 mg) once daily for 7 days in adults with Respiratory Syncytial Virus (RSV) infection, as measured by RSV viral load in nasal secretions by quantitative reverse transcription polymerase chain reaction (qRT-PCR) assay.
This is a double-blind, randomized, double-dummy, comparative study in parallel groups of subjects presenting with recurrent cystitis (≥2 episodes within the past 6 months). Subjects will be randomized and treated with one of two presentations of urinary antiseptics containing methenamine and methylthioninium for three days, followed by three days of antibiotic therapy as determined by urine culture and antibiogram. This study aims to assess the efficacy and safety of each treatment.
Knee arthroplasty is performed with restriction of blood flow by use of the pressure tourniquet. Ischemia of skeletal musculature is accompanied by the formation of reactive oxygen species and release of vasoactive factors. Inhaled anesthetics were described as possible protective factors, termed "ischemic preconditioning". The objective of this investigation is to observe the effects of preconditioning with inhaled anesthetic on bleeding in the postoperative period of knee arthroplasty surgery. The study will be prospective and randomized. Patients will be allocated by means of a randomized table in two groups: Group Preconditioning (GP) - subarachnoid and general anesthesia with preconditioning with 1 minimal alveolar concentration (MAC) for 15 minutes before the installation of the ischemia by tourniquet; Group control (GC) - subarachnoid and general anesthesia with sevoflurane without preconditioning. Will be evaluated: hemoglobin and hematocrit, platelet count and coagulogram, electrolytes and creatinine, lactate and glycemia. Volume of drainage will be evaluated until drainage is withdrawn and need for transfusion measuring the number of bags of blood concentrate and volume transfused. Pain assessment will be done by means of visual analog scale. Morbidity will be recorded up to the 30th postoperative day by chart analysis. Patients will be allocated to the study groups by random number table. Data will be presented descriptively, frequently, mean and standard deviation, or medians and distribution in 25-75% percentiles. The comparison between continuous measurements will be made by means of repeated measures intra-group analysis of variance (ANOVA) and Student's t-test for evaluation between groups. The need for transfusion will be compared by Fisher's exact test. Pain intensity will be compared by Wilcoxon test for non-parametric data. A commercially available statistical package - SPSS version 15.0 (SPSS Inc.) will be used. A value of P <0.05 will be considered statistically significant.
A high degree of turnout is desired by many dancers, because enables an efficient weight transfer; provides an excellent extension and control; and reduces the risk of injury when used properly. The dancer's body conditioning is worked and acquired through various types of training, among which stands out the Pilates Method. Thus, the aim of the study is to determine the effect of a training program of Pilates Method in the range of ballerinas' turnout. The study will be conducted with young dancers, between 10 and 14 years, who practice classical dance twice a week. They will be randomly divided into two groups: intervention and control, but only the intervention group will do Pilates classes. To verify the extent of the turnout, tests will be applied in both groups, before the start of Pilates classes (pre-test) and after 24 sessions (post-test). In the evaluation protocol will be collected kinematic data, while performing the movements of demi plié and elevé. Anthropometric variables of height and body mass will be obtained; and also the extent of the passive and active turnout in dancers.
To evaluate the surgical repercussions in patients with traumatic brachial plexus injury in the respiratory and motor systems, trunk biomechanics, functional capacity and quality of life.
The investigators are doing this study to see the effect of insulin degludec in pregnant women with type 1 diabetes, and if it is safe to use. In this study the medicine insulin degludec is compared to another medicine called insulin detemir. Participants will either get insulin degludec or insulin detemir and take it together with a medicine called insulin aspart - which treatment participants get is decided by chance. Participants will get pre-filled insulin pens. Participants will need to take blood sugar measurements several times a day. The study will last between 10 and 25 months depending on whether participants are already pregnant when they join the study. The number of visits and the tests ( for example blood and urine samples and ultrasound scans) the participants will have also depends on whether they are pregnant at study start.
The aim of this study is to investigate engagement, motivation, and the barriers to adherence of virtual reality based therapy (VRBT) in patients with cardiac diseases and risk factors to the development of cardiac diseases. In addition, to investigate autonomic and hemodynamic responses of VRBT in comparison with conventional therapy (CT). To do this, patients with cardiac diseases or risk factors will be invited to perform CT or VRBT+CT. They will be submitted to an initial evaluation, and then will be random allocated to 12 weeks of intervention and to a final evaluation. The primary outcomes includes engagement, motivation, barriers and adherence in the 12 previous weeks using questionnaire, after 12 weeks of the intervention and after 12 weeks of the final intervention program. Hemodynamic and autonomic responses will be considered the secondary outcomes being evaluated before, during and after a session at the first, sixth and twelfth week.