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 primary purpose of this study is to compare the effect of mitapivat versus placebo on transfusion burden in participants with transfusion-dependent alpha- or beta-thalassemia (TDT).
The primary purpose of this study is to compare the effect of mitapivat versus placebo on anemia in participants with alpha- or beta-non-transfusion dependent thalassemia (NTDT).
This is a phase 3, open-label, multicenter, extension study to evaluate the long-term safety and efficacy of pegcetacoplan (APL-2) in subjects with geographic atrophy (GA) secondary to age-related macular degeneration (AMD) who participated in Study APL2-103 (NCT03777332) or completed the treatment at Month 24 of either Study APL2-303 (Derby, NCT03525613) or Study APL2-304 (Oaks, NCT03525600).
The primary purpose of this study is to evaluate the efficacy of ION363 on clinical function and survival in carriers of fused in sarcoma mutations with amyotrophic lateral sclerosis (FUS-ALS).
INTRODUCTION: As this is a new disease, the short- and long-term consequences for patients with COVID-19 are still unclear. The use of sedatives, as well as prolonged rest, can lead to musculoskeletal damage, including decreased muscle strength and physical function. Thus, rehabilitation after this disease is a key component in continuing patient care. OBJECTIVE: To verify the effects of face-to-face cardiac rehabilitation and telerehabilitation on tolerance to the maximum and submaximal exercise, lung function, fatigue intensity and quality of life of COVID-19 survivors. METHODS: This is a longitudinal, intervention study. Primary outcomes will be maximum and submaximal functional capacity, intensity and impact of fatigue, while secondary outcomes will be lung function and quality of life. EXPECTED RESULTS: This work will bring important information to the scientific community and health professionals, about the best forms of intervention and its repercussions on the surviving individuals of COVID-19.
Neurological dysfunction continues to be one of the complications of considerable concern in patients undergoing cardiac surgery. It was previously reported in the literature, that cerebral oxygen desaturation during cardiac surgery was associated with an increased incidence of cognitive impairment. This study aims to determine whether continuous monitoring of cerebral oximetry improves the neurocognitive outcome in coronary artery bypass surgery when associated with predetermined intervention protocol to optimize cerebral oxygenation.
The purpose of this study is to assess the safety and reactogenicity of Ad26.COV2.S administered intramuscularly (IM) as a 1-dose schedule at the standard dose level in adult participants during the second and/or third trimester of pregnancy and (potentially) post-partum; to assess the humoral immune response in peripheral blood of adult participants to Ad26.COV2.S administered IM as a 1-dose schedule during the second and/or third trimester of pregnancy, 28 days after vaccination.
It is a randomized controlled clinical trial study that aims to follow a sample of individuals with persistent olfactory dysfunction post-COVID-19. The aim of this study is assess the clinical outcomes of olfactory training therapy in the treatment of persistent olfactory dysfunctions after COVID-19. The sample will consist of 350 participants, being 300 individuals with persistent olfactory dysfunction post-COVID-19 and 50 healthy individuals. Volunteers' will be separated in two experimental groups (1 and 2 ) and a control group. All participants will be submitted to clinical evaluation that include the Connecticut Chemosensory Clinical Research Test (CCCRT), an olfactory test to diagnose anosmia and hyposmia, and two skull Magnetic Resonance imaging (MRI). Only participants of Experimental group 1 will be submitted to an olfactory training with essences oils. Experimental group 2 will only receive a clinical follow-up after three months and control group will be only submitted to neurological exam, olfactory test, MRI imaging and test their ability to discriminate the essence oils used in olfactory training. As a result, is expected a better understanding of the characteristics of olfactory dysfunction caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) virus infection, as well as the effectiveness and viability of using Olfactory Training as a therapeutic alternative.
Acute myocardial injury has been a finding of variable frequency among patients diagnosed with COVID-19. It is now recognized that cTnI levels are strongly associated with increased mortality. The mechanisms underlying the myocardial injury remain unknown, and it is not clear whether they reflect local/systemic inflammatory process and/or cellular ischemia. Both myocardial ischemia and ventricular dysfunction result in dramatic changes in mitochondrial oxidative metabolism. These changes involve an increase in the rate of cytoplasmic anaerobic glycolysis to compensate for the decrease in mitochondrial adenosine triphosphate (ATP) production. The rest of the mitochondrial oxidative metabolism originates mainly from the β-oxidation of free fatty acids, which occurs at the expense of glucose oxidation. Trimetazidine is a competitive inhibitor of the enzyme 3-ketoacyl coenzyme A (CoA) long-chain thiolase (3-KAT), the last enzyme involved in the oxidation of fatty acids. Stimulation of glucose oxidation by trimetazidine results in a better coupling between glycolysis and glucose oxidation, with a consequent decrease in lactate production and intracellular acidosis, present in situations of myocardial ischemia or heart failure. Thus, the PREMIER-COVID-19 study was designed to test the hypothesis that the use of trimetazidine associated with usual therapy in patients admitted with a diagnosis of moderate to severe acute respiratory syndrome by SARS-CoV2 infection reduces the extent of acute myocardial injury assessed by the peak release of ultra-sensitive troponin compared to usual therapy.
This study aims to test the combined effects of different loading protocols and surgical approaches on clinical and patient-reported outcome measures (PROMs) following the use of four mini implants for mandibular overdenture retention. The main study hypotheses are: 1. There are significant improvements in PROMs following implant intervention compared to baseline measures; 2. Immediately loaded mini implants have similar failure rates compared to mini implants receiving a delayed 6-week protocol. 3. Flapless surgery has similar post-insertion outcomes compared to flapped surgery.