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.
This is a retrospective, multinational, non-interventional, observational study. A series of cohort studies will be conducted to assess the prevalence of undiagnosed stage 3 CKD in each region. The study will also assess the current state of CKD management in patients with undiagnosed CKD
The purpose of the study was to compare the clinical effectiveness of bonded versus vacuum-formed retainers regarding their retention capacity; periodontal health; survival rates; and patients' perception after 12 months of removal of fixed appliances. The null hypotheses considered that there was no differences between the retainers in relation to the aspects evaluated.
The purpose of this study is to evaluate the effect of Sodium Zirconium Cyclosilicate (SZC) on arrhythmia-related cardiovascular outcomes in participants on chronic hemodialysis with recurrent hyperkalemia.
Health professionals are extremely exposed to psychosocial risks, as they experience, in general, high levels of stress, anxiety, fatigue and suffering, due to the nature and location of their work. As a result, the health and well being of these professionals can be significantly compromised. In outbreaks of serious infectious diseases and pandemics, these risks become amplified and the health team is at greater risk of falling ill, presenting changes in mental health and psychological trauma, while caring for infected patients and becoming potential contaminants in their family and community. The objective is to study the mental health of professionals who work in Pediatric Intensive Care Units (PICUs) in Brazil, during and after the COVID-19 pandemic. The primary outcome will be the prevalence of burnout in the team involved with the care of critically ill children. Secondary outcomes such as anxiety, depression, quality of professional life, compassionate fatigue and post-traumatic stress disorder will be measured. Possible associations between demographic, work and coping variables (social support and resilience) with mental and emotional health outcomes will be investigated, in an exploratory character. It is a multicenter, observational, longitudinal study, with a descriptive and exploratory analytical component. Data collection will be carried out through an electronic survey during and after the COVID-19 pandemic.
This study is open to adults with schizophrenia. Schizophrenia can affect the way a person thinks, their memory and their mental functioning. Examples include struggling to remember things, or to read a book or pay attention to a movie. Some people have difficulty calculating the right change or planning a trip so that they arrive on time. The purpose of this study is to find out whether a medicine called Iclepertin improves learning and memory in people with schizophrenia. Participants are put into two groups randomly, which means by chance. One group takes Iclepertin tablets and the other group takes placebo tablets. Placebo tablets look like Iclepertin tablets but do not contain any medicine. Participants take a tablet once a day for 26 weeks. In addition, all participants take their normal medication for schizophrenia. During this time, doctors regularly test learning and memory of the participants by use of questionnaires, interviews, and computer tests. The results of the mental ability tests are compared between the groups. Participants are in the study for about 8 months. During this time, they visit the study site about 15 times and get about 3 phone calls from the study team. The doctors also regularly check participants' health and take note of any unwanted effects.
This study is open to adults with schizophrenia. Schizophrenia can affect the way a person thinks, their memory and their mental functioning. Examples include struggling to remember things, or to read a book or pay attention to a movie. Some people have difficulty calculating the right change or planning a trip so that they arrive on time. The purpose of this study is to find out whether a medicine called Iclepertin improves learning and memory in people with schizophrenia. Participants are put into two groups randomly, which means by chance. One group takes Iclepertin tablets and the other group takes placebo tablets. Placebo tablets look like Iclepertin tablets but do not contain any medicine. Participants take a tablet once a day for 26 weeks. In addition, all participants take their normal medication for schizophrenia. During this time, doctors regularly test learning and memory of the participants by use of questionnaires, interviews, and computer tests. The results of the mental ability tests are compared between the groups. Participants are in the study for about 8 months and visit the study site about 14 times. During this time, doctors regularly check participants' health and take note of any unwanted effects.
The purpose of this study is to confirm the reproducibility that the MEDL score can be evaluated by Magnetic Resonance Imaging (MRI) in the similar way as laparoscopy, the gold standard for the evaluation of the disease state of endometriosis, in order to establish the MEDL score, a new evaluation index for endometriosis using MRI. Approximately 70-90 patients with endometriosis diagnosed by imaging and who are candidates for fertility-preserving surgery will be recruited retrospectively or prospectively, and the disease status of endometriosis will be evaluated using preoperative MR images, laparoscopic surgery videos, etc. The relationship between the condition and clinical symptoms, such as pain, is also considered.
This is a prospective cohort study, observational, multicentre, single-arm, post-registration to assess the safety of the Adsorbed COVID-19 (Inactivated) Vaccine Sinovac / Institute Butantan.
As seen worldwide, cancer incidence is increasing in Latin America achieving an amount of 1.3 million new cases annually.1 In addition, it is expected that up to 70% of patients with cancer will experience pain2, one of the most distressing symptoms in patients with advanced cancer. And despite of advances in cancer therapies, opioids remain the mainstay treatment of cancer-related moderate-to-severe and end-of-life pain.3 However, concerns regarding opioid prescriptions have emerged for reasons like the risk of misuse and the possibility of cancer progression. In the last decades, an increase in consumption of opioids as well as in opioids-related deaths generating the so called 'opioid crisis'. This rise is mainly due to abuse / addiction of opioids. Consequently, oncologic patients are at risk for abuse, as well as for aberrant use, which can complicate the course of cancer treatment.4 5 Another feature of opioids use in cancer patients is that it may contribute to disease progression. Experimental studies suggest that opioids can may lead to immunosuppression and tumor progression or recurrence.6-8 On the other hand, retrospective analysis of clinical data shows conflicting results and trials are lacking.
COVID-19 has a variety of symptoms from asymptomatic respiratory dysfunction to death. Considering the pathophysiology of SARS-CoV-2 and its relationship with the neuroimmune system, response, autonomic balance, musculoskeletal and respiratory and neuropsychiatric symptoms presented by patients, the investigators highlight the potential use of non-invasive neuromodulation methods to assess the effectiveness of treating patients with COVID-19, as these techniques can be useful in the management of important clinical aspects in the functional recovery of individuals affected by the disease. The investigators intend to evaluate the effects of HD- tDCS to promote ventilatory weaning in patients admitted to the Intensive Care Unit (ICU) and to improve the respiratory performance of those hospitalized in nursing beds for treatment of COVID - 19.