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.
Systemic sclerosis is a chronic autoimmune disease characterized by vascular changes in the microcirculation (small blood vessels) and progressive fibrosis of the skin and internal organs. It is believed that vascular changes, expressed early by the Raynaud phenomenon, precede fibrosis and organic dysfunction. There is no available treatment that reverses the vascular damage caused by the disease to the moment, although there are several medications recommended for the relief of manifestations due to vascular injury. Acetylsalicylic acid (ASA) is one of the medications that can be used for the treatment of vascular injury present in systemic sclerosis, but still without a fully proven benefit. This study aims to evaluate the effectiveness of ASA on microcirculation alterations in patients with systemic sclerosis by performing three exams: periungual panoramic capillary microscopy, videocapillaroscopy and laser Doppler imaging. In addition, a blood sample will be collected for dosing the following vascular lesion markers: endothelin-1, von Willebrand factor, thromboxane, and platelet-derived, endothelial-derived and monocyte-derived microparticles.
Introduction: Diabetes mellitus (DM) is a very frequent pathology, which can lead to renal failure and the need for renal replacement therapy. In people with chronic kidney disease (CKD) and diabetes mellitus (DM), glycemic control is very important for the prevention of microvascular injury. In this context, the Nursing Process (NP) is the instrument to guide care, contributing to the attention of individuals' needs. Objective: To evaluate the results of Nursing Outcomes Classification (NOC), obtained through interventions of the Nursing Interventions Classification (NIC) for the glycemic control, in patients with diabetes in renal replacement therapy, with a diagnosis of Unstable Glycemia, of the North American Nursing Diagnosis - International (NANDA-I). Method: Randomized clinical trial in three dialysis services in southern Brazil. Population: Type I and II diabetes patients on hemodialysis. Sample: Over 18 years old, literate, who accept to participate in the study by signing a Term of Consent Free and Clarified. Exclusion criteria: severe uncorrected deficiency in hearing, speech, total amaurosis, degenerative neurological diseases, or score less than 20 in the Mini Mental State Examination. Randomization occurred by clusters, considering dialysis shifts. The CG followed routine treatment and guidelines, while the IG received nursing interventions on a monthly basis for 6 months. Variables related to NOC scores and the knowledge, attitude and self-care tests for DM were applied before and after the intervention period. After the intervention period, a washout period of 06 months will occur, after which the variables will be collected.
Ventilator hyperinflation (VHI) has been shown to be effective in improving respiratory mechanics, secretion removal, and gas exchange in mechanically ventilated patients; however, the literature is scarce concerning its safety and adverse effects. Thus, the aim of this study is to compare the hemodynamic repercussions of VHI in volume-controlled mode. In a randomized, controlled and crossover design, 24 mechanically ventilated patients will undergo 2 modes of ventilator hyperinflation (with and without an inspiratory pause) and a control intervention. Cardiac output, cardiac index, mean arterial pressure, pulmonary vascular resistance, systolic volume and other hemodynamic variables will be recorded during the interventions.
This is a study designed to evaluate efficacy and safety of Benralizumab in reducing the Oral Corticosteroid (OCS) use in adult patients with severe asthma who are receiving OCS with or without additional asthma controller medications.
Introduction: Gynoid hydrolipodystrophy (HLDG) or cellulitis is a subcutaneous tissue disorder, with several strategies for its treatment, such as caffeine and iontophoresis. Objective: To evaluate the effects of caffeine-associated iontophoresis for the treatment of HLDG. Methods: In a longitudinal study, participants will be evaluated for: photographic documentation, ultrasound imaging, thermography and quality of life questionnaire. If included, they will be separated into 3 randomized groups (n = 30). G1: use of base gel (n = 10); G2: use of iontophoresis and gel with caffeine (n = 10) and G3: use of iontophoresis alone (n = 10). The groups will be treated with 10 sessions, 2 times per week. After that they will be reevaluated. Statistical analysis: The software used will be the SPSS StatisticalPackage (IBM SPSS Statistics, Chicago, IL, USA). The data distribution will be analyzed by the Shapiro-Wilk test. In case of normal distribution, the data will be described as mean ± standard deviation; otherwise, as median [interquartile range 25-75%]. For comparison of the data, we will use ANOVA and for comparison of means the Tukey test and case not normal distribution, krulskal-Wallis test and the Dunns test. The level of statistical significance adopted will be P <0.05. Expected contributions: It is expected that investigators can contribute to the treatment of patients with HLDG and analyze the effects of iontophoresis with caffeine, both in clinical and scientific practice, providing a method that is valid and reliable for this purpose; multidisciplinary training of highly qualified human resources and the strengthening and consolidation of a research team.
Introduction: Chronic Renal Failure affects a large part of the world population, being characterized by irreversible renal tissue damage, resulting in systemic disturbances that negatively affect the patient's life. The most commonly used treatment is hemodialysis, which also has certain deleterious effects, so it is necessary to look for therapies that minimize these complications. Objective: To analyze the influence of physical exercise during hemodialysis on the autonomic heart rate modulation, quality of life and physical functional ability in individuals with Chronic Renal Failure at Hospital das Clínicas Gaspar Vianna. Method: The intervention consists on performing aerobic exercise during hemodialysis. For the evaluation will be applied the KDQOL-SF ™ 1.3 questionnaire, for quality of life; 6-Minute Walk Test for physical functional ability; and cardiofrequencimeter for the autonomic heart rate modulation. Data will be stored in Microsoft Excel® spreadsheets, it will also be used for making graphs and tables. Statistical analysis will be performed in the Bioestat 5.3® program and the choice of tests will depend on the distribution and homogeneity of the data.
The Influence of 5-HTTLPR and BDNF Polymorphisms on Anxiety and Mood After Acute Exercise. Introduction: The 5-HTTLPR (SLC6A4) and BDNF (Val66Met) polymorphism presents an action on the modulation of human behavior and has received great attention as a risk factor for several psychiatric disorders. In recent years, a growing number of studies have evaluated the association between these polymorphisms and personality traits related to anxiety and depression. Objectives: To determine the frequencies of 5-HTTLPR and BDNF polymorphisms in a college students population; To determine the influence of 5-HTTLPR and BDNF polymorphisms on mood states and anxiety after acute physical exercise. Material and Methods: Four hundred (400) College students will be assessed. In the first phase of the study, the following procedures will be performed: Screening, Aerobic Fitness Assessment (Step Test), Questionnaires (PAR-Q, Habitual Physical Activity Level, Beck Anxiety and Depression Scale, State-Trait Anxiety, and Perceived Stress Scale), blood sample collection and genotyping. In the second phase of the study, two (2) groups with or without polymorphisms will be selected (for each gene). These groups will be submitted to four conditions (three experimental conditions and one control condition), carried out randomly and separated by an interval of 1 week. In the experimental Conditions the volunteers will perform treadmill exercises sessions (30 minutes) in three different intensities (light, moderate and vigorous) and will respond to the Borg Scale at 10, 20 e 30 minutes. In the control condition the volunteers will be instructed to remain seated (quiet rest), relaxed and silent for 30 minutes. In both conditions, the volunteers will complete the Profile of Mood States (POMS) and State-Anxiety (STAY), 05 (five) minutes before and, 5 (five) and 20 (twenty) minutes following the interventions.
The aims of the study are to perform psychological intervention using EMDR Therapy (Eye Movement Desensitization and Reprocessing Therapy) in the preoperative period, evaluate the personality of each patient through the PFB test (Personality Factor Battery Test) at different times, compare the results obtained in the PFB test at different times of application and verify the existence of changes in the five major Personality Factors: Neuroticism, Extroversion, Socialization, Realization and Openness.
This 2-part study will evaluate the safety and efficacy of pembrolizumab (MK-3475) compared to placebo in participants with surgically resected high-risk Stage II melanoma. Participants in Part 1 will receive either pembrolizumab or placebo in a double-blind design every 3 weeks (Q3W) for up to 17 cycles/~1 year (each cycle = 21 days). Participants who complete the initial treatment of 17 cycles of pembrolizumab in Part 1 and experience disease recurrence may be eligible for re-challenge with pembrolizumab at the same dose and schedule of 200 mg Q3W (21-day cycles) for up to 35 cycles (up to ~2 years) in Part 2 in an open label design. Participants who complete the initial treatment of placebo and experience disease recurrence may be eligible to switch over to pembrolizumab 200 mg Q3W (21-day cycles) for up to 35 cycles (up to ~2 years) in Part 2 in an open label design. The primary hypothesis of this study is that pembrolizumab increases recurrence-free survival (RFS) compared to placebo. Per protocol, response/ progression or adverse events (AEs) during re-challenge/switch-over in Part 2 will not be counted towards the RFS outcome measure or safety outcome measures respectively.
The present study has the objective of evaluating whether the previous therapy with low intensity laser, through its analgesic effect, can promote a greater comfort specifically for patient with pulpitis in mandibular molars. 75 patients with pain from mandibular molar pulpitis will be selected for this study (randomized and double blind) and divided into 3 groups (n = 25): Group 1 - Pulse Laser (880nm, 30mW, 3,6J / cm², 25Hz) ; Group 2 - Continuous Laser (880nm; 30mW; 3.6J / cm²); Group 3 - Placebo. The efficacy of the laser will be assessed using the VAS scale 10 minutes after the laser application, immediately before the blockade is performed.