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.
Researchers are looking for a better way to prevent an ischemic stroke which occurs when a blood clot travelled to the brain in people who within the last 72 hours had: - an acute stroke due to a blood clot that formed outside the heart (acute non-cardioembolic ischemic stroke), or - TIA/mini-stroke with a high risk of turning into a stroke (high-risk transient ischemic attack), and who are planned to receive standard of care therapy. Acute ischemic strokes or TIA/mini-stroke result from a blocked or reduced blood flow to a part of the brain. They are caused by blood clots that travel to the brain and block the vessels that supply it. If these blood clots form elsewhere than in the heart, the stroke is called non-cardioembolic. People who already had a non-cardioembolic stroke are more likely to have another stroke. This is why they are treated preventively with an antiplatelet therapy, the current standard of care. Antiplatelet medicines prevent platelets, components of blood clotting, from clumping together. Anticoagulants are another type of medicine that prevents blood clots from forming by interfering with a process known as coagulation (or blood clotting). The study treatment asundexian is a new type of anticoagulant currently under development to provide further treatment options. Asundexian aims to further improve the standard of care without increasing the risk of bleeding. The main purpose of this study is to learn whether asundexian works better than placebo at reducing ischemic strokes in participants who recently had a non-cardioembolic ischemic stroke or TIA/mini-stroke when given in addition to standard antiplatelet therapy. A placebo is a treatment that looks like a medicine but does not have any medicine in it. Another aim is to compare the occurrence of major bleeding events during the study between the asundexian and the placebo group. Major bleedings have a serious or even life-threatening impact on a person's health. Dependent on the treatment group, the participants will either take asundexian or placebo once a day for at least 3 months up to 31 months. Approximately every 3 months during the treatment period, either a phone call or a visit to the study site is scheduled on an alternating basis. In addition, one visit before and up to two visits after the treatment period are planned. During the study, the study team will: - Check vital signs such as blood pressure and heart rate - Examine the participants' heart health using an electrocardiogram (ECG) - Take blood samples - Ask the participants questions about how they are feeling and what adverse events they are having. An adverse event is any medical problem that a participant has during a study. Doctors keep track of all adverse events that happen in studies, even if they do not think the adverse events might be related to the study treatments. In addition, the participants will be asked to complete a questionnaire on quality of life at certain time points during the study.
Treatment with sodium glucose co-transporter type 2 inhibitors (Sglt2i) reduced the incidence of cardiovascular death and hospitalization for heart failure by 29% in individuals with moderate chronic kidney disease. Recent observations found that beyond its effect on natriuresis, Sglt2i directly interacts with cardiomyocytes inducing improvement of myocardial function. This effect is not mitigated as glomerular filtration rate declines. Therefore, plausibly treatment with Sglt2i may attenuate heart failure in individuals end-stage kidney disease (ESKD) requiring dialysis, in whom cardiovascular disease remains the leading cause of death. In this context, this project was designed to estimate the effect of dapagliflozin on myocardial function of dialysis subjects. Individuals with diagnosed ESKD on dialysis for at least 3 months, from both sexes, aged more than 18 years of age are eligible. Exclusion criteria are pregnant woman, hepatic failure, and known allergy to study medications. Eligible patients will be recruited from the Nephrology Division of the Clinics Hospital of the University of Campinas (Unicamp). The study was designed as a prospective, randomized, open-label, phase 4 clinical trial. Patients will be randomized, 1:1, for a 6-months treatment with either dapagliflozin 10mg/day (n=40) add to standard treatment or standard treatment alone (n=40). At the randomization visit, all patients will undergo a detailed interview and medical examination by the physician-researcher, echocardiogram and blood samples will be collected for further biochemical analysis and follow up visits will be scheduled every month for endpoints disclosure and medications dispensation until the end of study participation at the 6th month visit when echocardiogram and blood sample collection will be repeated. Primary goal will be the difference between groups in mean change of NTproBNP levels during treatment. Secondary endpoints encompass the mean change in ejection fraction, e/e' ratio, global longitudinal and radial strain and indexed left ventricle mass. Changes in bone metabolsm and structure, assessed by serum levels of FGF-23 and α-Klotho, and changes in bone mineral density will be compared between groups as an exploratory analysis.
This clinical trial aims to learn about the electrophysiological and clinical effects of radiofrequency catheter ablation in patients with Brugada syndrome. The main questions it seeks to answer are: - What are the immediate effects of catheter radiofrequency ablation in cardiac electrophysiology? - What is the relation between invasive and clinical features in patients with Brugada syndrome undergoing ablation? Researchers will compare ablation and control groups to see if there is a difference in clinical and invasive markers of the disease in one year of follow-up.
Interest in the use of probiotics as a potential treatment to reduce crying in babies with colic has increased lately. Recent studies have reported that the gut microbiota in infants with colic is characterized by lower proportions of Lactobacilli and Bifidobacteria and higher proportions of opportunistic proteobacteria (such as Escherichia coli, Enterobacter aerogenes and Klebsiella spp.) in comparison with the control babies. Therefore, based on data in the literature, it is understood that there is evidence of the effectiveness of using probiotics, either alone or in the form of a blend, to alleviate the symptoms of infantile colic.
The present study aims to evaluate the efficacy and safety of the use of customized silicone digital orthoses for six months in the distribution of plantar pressure, in the reduction of pre-ulcerative lesions and plantar ulcers in the forefoot, foot deformities, quality of life and foot health and functionality in people with diabetes and neuropathy with risk category 2 and 3 for ulcers, according to the International Working Group on Diabetic Foot.
The purpose of this open-label, single arm, multicenter extension study is to evaluate the long-term safety and tolerability of inclisiran in participants with HeFH or HoFH who have completed the ORION-16 or ORION-13 studies.
This is a multicenter, randomized (2:1), open-label, controlled Phase 3 trial of XL092 in combination with nivolumab versus sunitinib in subjects with unresectable, locally advanced or metastatic nccRCC who have not received prior systemic anticancer therapy.
The main aim of this study is to learn if fazirsiran reduces liver scarring (fibrosis) compared to placebo. Other aims are to learn if fazirsiran slows down the disease worsening in the liver, to get information on how fazirsiran affects the body (called pharmacodynamics), to learn if fazirsiran reduces other liver injury (inflammation) and the abnormal Z-AAT protein in the liver, to get information on how the body processes fazirsiran (called pharmacokinetics), to test how well fazirsiran works compared with a placebo in improving measures of liver scarring including imaging and liver biomarkers (substances in the blood that the body normally makes and help show if liver function is improving, staying the same, or getting worse) as well as to check for side effects in participants treated with fazirsiran compared with those who received placebo. Participants will either receive fazirsiran or placebo. Liver biopsies, a way of collecting a small tissue sample from the liver, will be taken twice during this study.
Parkinson's Disease (PD) affects people universally, including all ethnic and socioeconomic groups, as a highly prevalent neurodegenerative disorder. However, there are several additional challenges for people living with PD in developing countries, especially those with low socioeconomic status. There is limited access to neurological care in Brazil due to an uneven distribution of neurologists and neurological facilities, which is more critical in the poorest regions. In addition, people in these vulnerable communities are more exposed to environmental pollution, including pesticides and metals used in agriculture and mining, respectively. Therefore, reliable data on the prevalence and incidence of PD in Brazil are essential to understand the proportion of this limited access to care for patients with PD, its burden in the region, and the potential role of environmental and lifestyle risk factors in PD. Unfortunately, the literature describes few epidemiological data on PD in Latin America, including Brazil, with an evident need for more information in their regions remarkably different. The investigators will carry out a population-based study in four municipalities in Brazil (Veranópolis-RS, Belém-PA, Jacobina-BA and Candangolândia-DF), comprising distinct communities in terms of ethnic groups, education levels, and environmental and lifestyle exposures, to portray the differences in Brazilian society. The present study will screen all people living in these regions aged 60 and over for parkinsonian symptoms and REM sleep behavior disorder (RBD). At least one neurologist will examine those selected to determine the diagnosis of PD or related disorders. The study also will evaluate a random sample of those individuals with a negative screen. Each participant selected after the screening will undergo clinical assessments and interview with the addition of a comprehensive questionnaire on clinical and sociodemographic data, prodromal symptoms, as well as lifestyle and environmental exposures, including occupational use and non-occupational use of pesticides and metals. An equal sample of blood and hair will be collected from individuals with PD and controls. The study will determine the prevalence of PD and related disorders in these distinct communities. An exploratory analysis also will be performed to determine the association between PD and each variable investigated.
It is already known that dysbiosis, that is, qualitative and quantitative changes in the composition of the intestinal microbiota, can be associated with the development of a series of intestinal and extra-intestinal disorders. Dysbiosis is reported in irritable bowel syndrome, inflammatory bowel disease, colorectal cancer, allergic diseases, non-alcoholic steatohepatitis, arteriosclerotic diseases, neurological diseases and metabolic syndromes, mainly diabetes and obesity. Among the many factors that play a key role in obesity, a number of studies show the intestinal microbiota as an important contributor. Many studies carried out with probiotics have shown that their administration can be effective in the prevention and treatment of obesity. Furthermore, it is found that benefits for body weight, abdominal adiposity, anthropometric measurements and body composition are often associated with favorable metabolic effects.