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 aim of the study is to evaluate the efficacy of sleep hygiene measures for the possible improvement of sleep bruxism in children through a randomized controlled clinical study of children under 8 years of age with probable sleep bruxism. In randomization both groups will receive information about bruxism, and the test group will receive instructions of sleep hygiene, limited use of screens and a relaxation audio. The occurrence of sleep bruxism will be assessed through a diary to be completed by the child's responsible party. A randomized, stratified sample of approximately 16 children will be included in the study. One group will be composed of 8 children with probable sleep bruxism who will receive the sleep hygiene intervention, and another group of children who will only receive instructions on sleep bruxism, with causes and consequences. Participants will be followed-up for 30 days. Parents will respond to a questionnaire about socioeconomic, demographic (child's age and gender), as well as parafunctional habits such as nail biting, biting objects, pacifier sucking, finger / thumb sucking and bottle feeding, child's sleep characteristics, screen habits, parental smoking, problems breathing, parental profession and also on psychological issues. Sleep habits will also be answered in this questionnaire, and parents will also answer the Strengths and Difficulties Questionnaire. The children over 6 years old will respond a Child Stress Scale and the Child of stressing sources in child; children less than 6 years will have the questionnaire responded by parents. The children will undergo a clinical examination to assess dental wear, according to the BEWE (Basic Erosive Wear Examination Index). The study evaluations consist of baseline, 1, 7, 15 and 30 days.
Nasal obstruction is one of the majors concerns in reduction rhinoseptoplasty, because it affects quality of life and surgical outcomes. Is the association of middle third grafts with reduction rhinoseptoplasty responsible for an increase in quality of life related to nasal obstruction when compared to reduction rhinoseptoplasty without the placement of these grafts?
Background: Alcohol use among college students causes health and social problems. However, even when available, many students do not access alcohol interventions. Web-based Personalized Normative Feedback (PNF) has been used to disseminate alcohol brief-interventions, and evidence supports PNF efficacy in reducing alcohol consumption among this population. On the other hand, studies on PNF mediators and moderators are scarce, limiting the knowledge on the mechanisms of change and conditions in which their effects occur. Objective: to evaluate whether normative perceptions mediate, and motivation to receive the intervention, moderates the effects of a web-based PNF intervention (Pesquisa Universitária sobre Bebidas - PUB 2.0) for alcohol use among Brazilian college students. Methods: Pragmatic randomized controlled trial among college students aged 18 and over and with follow-up assessments after 1, 3 and 6 months. Participants will be randomized into a Control group (assessment only) or to receive the updated version of the intervention (PUB 2.0). Outcomes are the typical number of drinks (primary outcome) and the total number of drinks consumed, drinking frequency, maximum number of drinks consumed and number of consequences (secondary outcomes). Statistical analyses will consider Structural Equation Models and significance level of 5%. This study will improve knowledge on how and in which conditions a web-based alcohol PNF effects occur, helping tailor future strategies to reduce the impact of alcohol problems among college students.
Endoscopic resection of superficial esophageal neoplasms is already a reality and presents important advantages when compared to esophagectomy as fewer complications and better quality of life. However, extensive resections can lead to difficult-to-manage stenoses. There are several therapies available in order to prevent this stenosis but, to date, there is no definition of the gold standard. The objective of this study was to compare the use of intralesional steroid injection versus oral prednisolone after endoscopic submucosal dissection and to evaluate the stenosis rate, number of dilations to resolve the stenosis and complications.
This is a prospective, randomized, single-center, open-label controlled trial, designed to compare the efficacy of two ventilation strategies (Low Tidal Volume and positive end-expiratory pressure (PEEP) based on the Acute Respiratory Distress Syndrome (ARDS) Network low PEEP-fraction of inspired oxygen inspired oxygen fraction (FIO2) Table versus Low Driving Pressure and PEEP guided by Electrical Impedance Tomography (EIT) in reducing daily lung injury score in patients with acute respiratory distress syndrome caused by COVID-19. The two strategies incorporate different prioritizations of clinical variables. The PEEP-FIO2 table strategy aims to reduce lung overdistension, even if it requires tolerating worse gas exchange. EIT-guided strategy prioritizes mechanical stress protection, avoiding alveolar overdistension and collapse.
Physiological changes caused by hematological diseases associated with high dose chemotherapy have a negative impact on patient's functionality, making them more fragile and vulnerable after hematopoietic cell transplantation. Currently, randomized studies have shown that physical exercise can contribute to improve Quality of Life of these patients. In this randomized controlled trial, we will study the effect of using the bicycle ergometer on the physical performance of patients undergoing transplantation of hematopoietic stem cells (HSCT).
Spinocerebellar ataxia type 10 (SCA10) is a hereditary ataxia whose ancestral mutation occurred in East Asia. The mutation is likely to have migrated during peopling of American continents from East Asia. We found a specific rare DNA variation associated with SCA10. We test whether this variation played a key role in the birth and subsequent spreading of SCA10 mutation.
COVID-19 is the pandemic disease caused by the SARS-CoV-2 coronavirus. It is a highly contagious viral disease, the condition of which main clinical symptoms are characterized by fever and respiratory symptoms. Evidence indicates to worse outcomes in patients with pre-existing diseases, such as diabetes, arterial hypertension, heart disease, pneumopathies, chronic kidney disease, and immunodeficiencies. Recipients of kidney transplants make prolonged use of immunosuppressive drugs to inhibit the acquired immune response, notably the activity of lymphocytes. Due to this potential to modulate the immune and inflammatory response, it is speculated that the clinical and laboratory condition of COVID-19 in these patients is atypical. Preliminary evidence suggests worse outcomes of COVID-19 in immunosuppressed patients, as carriers of cancer. However, information on kidney transplant recipients is insufficient. So far, only reports of the case are available in the literature with different clinical presentations and outcomes. The aim of this study is, therefore, to characterize the demographics, clinical and laboratory conditions, and the outcomes of COVID-19 in kidney transplant recipients in a national multicenter cohort.
This study will evaluate the efficacy and safety of belantamab mafodotin in combination with pomalidomide and dexamethasone (Arm A) compared with that of combination of pomalidomide, bortezomib and dexamethasone (Arm B) in participants with relapsed/refractory multiple myeloma (RRMM).
This is an open-label, multi-center, multi-cohort, Phase 2 study to evaluate the efficacy and safety of trastuzumab deruxtecan (T-DXd) for the treatment of selected HER2-expressing tumors. This study will consist of Part 1 which includes 7 cohorts of: urothelial bladder cancer, biliary tract cancer, cervical cancer, endometrial cancer, ovarian cancer, pancreatic cancer, and rare tumors; and Part 2 which includes 5 cohorts A to E of: A) any tumor type that is HER2 IHC 3+ (excluding breast, gastric cancer, and colorectal cancer), B) any tumor type that is HER2 IHC 2+/ISH+ (excluding breast, gastric cancer, and colorectal cancer), C) HER2 IHC 2+ or 1+ endometrial cancer, D) HER2 IHC 2+ or 1+ ovarian cancer, and E) HER2 IHC 2+ or 1+ cervical cancer. Study hypothesis: Trastuzumab deruxtecan will show meaningful clinical activity and a favorable risk benefit profile in selected HER2-expressing solid tumors.