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.
To understand the changes in the resting electroencephalogram (EEG) brain networks of children and adolescents with autistic spectrum disorder (ASD) induced by transcranial direct current stimulation (tDCS), we asked two questions. First: how can tDCS modulate the expression of neural network dynamics? Second: how can tDCS modulate functional connections at specific frequencies? We hypothesized that the tDCS mechanism results in increased cortical frequencies in the areas under the anode, which may reflect an increase in synaptic connectivity, and that this tDCS-related increase changes connection profiles at specific frequencies important for ASD, indicating improvement in symptoms. To verify this improvement, the researchers used the Autism Treatment Evaluation Checklist (ATEC) after an intervention, comparing baseline scores with post-treatment scores.
The prevalence and clinical relevance of viremia in patients with COVID-19 have not been well investigated. Seeking to understand the need for dentistry to perform bloody procedures in critically ill patients with COVID-19 admitted to the ICU, the quantification of the magnitude of viral replication may play a fundamental role in this scenario. For this, it is necessary to study the viremia kinetics of SARS-CoV-2, seeking to assess whether there is any characteristic pattern that may be associated with a worse clinical outcome of the patient with COVID-19 after undergoing bloody dental procedures, therefore, the objective of this research will be to investigate the occurrence of viral kinetics produced by dental procedures in patients with SARS-CoV-2 in Intensive Care Units, where, in addition to analyzing the oral health condition, the viral kinetics of SARS-CoV-2 will also be investigated by means of reverse transcription polymerase chain reaction (RT-PCR) examination of blood samples from patients with COVID-19 undergoing bloody dental treatment. This research is expected to identify risks and consequences regarding the possibility of performing bloody dental treatment in patients with COVID-19 in serious condition, in addition to verifying the association of the impact of oral infection foci on this profile of patients.
This is an implementation type II hybrid study with randomisation in cluster, whose objective is to compare two strategies of implementation of the Brazilian cardioprotective diet guidelines in primary health care in two Brazilian cities. All health professionals from the health units (clusters) randomized to the intervention group will receive training on the subject. The health professionals from the health units randomized to the control group will follow the usual activities, receiving only the printed guidelines, as usually done. After 6 months, the prescription rate of the Brazilian cardioprotective diet will be evaluated, as well as the quality of the diet of patients in both groups.
The primary objective of this study is to verify the clinical benefit of monthly doses of aducanumab in slowing cognitive and functional impairment as measured by changes in the Clinical Dementia Rating Scale Sum of Boxes (CDR-SB) score as compared with placebo in participants with early Alzheimer's disease.
Goals. To evaluate the effect of electroacupuncture on paresthesia and myofunctional changes in patients undergoing bimaxillary orthognathic surgery and mentoplasty. Methodology: this is a controlled, randomized, blinded clinical trial. The sample will consist of 62 individuals in each group (general sample = 124 participants). Therefore, 124 young adults, aged between 18 and 50 years, both sexes, with at least 24 teeth, with Class II or III skeletal malocclusion, diagnosed by cephalometric radiographs, who underwent orthognathic surgery in the period from 1 to 30 days before the start of physical therapy, be available to perform the proposed postoperative treatment for six weeks. Participants will be equally and randomly distributed into two experimental groups: GF (Physiotherapy Group), GFE (Physiotherapy plus Electroacupuncture Group). The variables to be studied will be: socioepidemiological data; sensitivity assessment by the Semmes-Weinstein monofilament test; Edema assessment by the MD Anderson Cancer Center Head and Neck Lymphedema protocol, validated in Portuguese; assessment of mandibular movements using a Western-DC digital caliper; Assessment of masticatory function using the Chewing Quality Assessment Questionnaire. Data will be analyzed descriptively and organized into tables. Subsequently, the normality of continuous variables will be tested by the Kolmogorov-Smirnov test. As the variables are normally distributed, we will use parametric tests such as the paired t test, independent t test, ANOVA and Pearson's correlation. Nonparametric tests such as Wilcoxon paired signed rank test, Mann-Whitney U test, Kruskal Wallis test, Spearman correlation test will be used in case of non-normality of continuous variables. The significance level will be adjusted to 5% in all analyses.
The first study was a randomized crossover trial that compared the acute effects of High Speed Resistance Exercise (HSRE) and Traditional Resistance Exercise (TRE) on blood pressure parameters in a sample of frail older adults. Participants performed three experimental sessions (i.e., HSRE, TRE, and a control session [CS]) in a random order and separated from one another by seven days (standard deviation [±] 1 day). Food consumption was maintained constant during 48 h prior to the exercise session and a standard breakfast was offered 60-90 min before the beginning of the experimental sessions. The pharmacological therapy was kept constant during the whole study, and participants took their anti-hypertensive medication at the same time in all experimental days as prescribed by their physician.
Tooth whitening is one of the most indicated aesthetic procedures in dentistry and there is evidence that it interferes with aspects of patients' quality of life. However, the sensitivity, associated with the post-procedure period, challenges clinicians and researchers. The use of topic desensitizing agents could be a alternative for the control of this adverse effects of bleaching agents. The objective of this randomized clinical study, therefore, is to evaluate the effect of glutaraldehyde-based desensitizing agent associated on tooth sensitivity and tooth color after bleaching with 35% hydrogen peroxide. 25 patients will be selected divided into two groups for a double-blind and split-mouth study. Among the results it is expected: that the use of glutaraldehyde desensitizing agent helps in the control of post-bleaching sensitivity, without harming the final color obtained of patients submitted to the proposed clinical protocol.
This study is a randomized, single-blind, parallel, controlled, superiority trial. The main objective is to verify the chronic effects of a remote 12-week low-intensity physical training program alone or in combination with cognitive training on functional, cognitive, and occupational capacity, as well as on the self-reported quality of life.
This study aims to propose an alternative and auxiliary methodology for the prevention and treatment of Oral Mucositis (OM) in patients undergoing radiotherapy or radio and chemotherapy for head and neck neoplasms through the use of copaiba-based mouthwash, since the treatment that currently has proven efficacy for the prevention of OM(Low Power Laser Therapy) cannot be applied in tumor regions due to the risk of stimulating the tissue proliferation of malignant cells.
This project aims to perform complete sequencing of the somatic (tumor) and germline exomes during clinical investigation of cancer patients treated through the Brazilian Unified Health System to generate genomic and phenotypic data for the Brazilian Ministry of Health's National Precision Genomics and Health Program, called Genomas Brasil, as well as to collect data on the population's ancestry.