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 objective of this study is to evaluate the effects of sotatercept (MK-7962, formerly called ACE-011) treatment (plus background pulmonary arterial hypertension (PAH) therapy) versus placebo (plus background PAH therapy) on time to clinical worsening (TTCW) in participants who are newly diagnosed with PAH and are at intermediate or high risk of disease progression.
The purpose of this study is to evaluate the drug levels, efficacy, safety, and tolerability of subcutaneous nivolumab versus intravenous nivolumab in participants with previously treated clear cell renal cell carcinoma that is advanced or has spread. The purpose of this study's substudy is to evaluate drug level biocomparability of subcutaneous nivolumab manufactured using two different manufacturing processes.
It is a consensus in the literature that changes in lifestyle and carbohydrate-rich diet are part of a context that has led to an obesity pandemic. Its treatment is multidisciplinary, however, in many cases, conventional therapy has no effect, requiring surgical intervention. The latter, in turn, is not free of risks and causes important changes in lung function. Therefore, this study aims to evaluate the effect of electroanalgesia through conventional transcutaneous nerve stimulation (TENS) on pulmonary function in the postoperative period of bariatric surgery.
At the time of the COVID-19 pandemic, thousands of children had their dental care interrupted or postponed, generating a pent-up demand for primary care. In order to minimize the impact of this outage of face-to-face care, information and communication technologies could be an alternative and even likely to be envisioned within the Brazilian Unified Health System (SUS). In this sense, this study sought to show the impact of the use of information and communication technologies (ICT) in the resolution of the pent-up demand for primary dental care to children in the SUS, due to the COVID-19 pandemic, proposing the use of telemonitoring, teleorientation and telescreening to resolve and address demands arising from this outage in primary elective care. The impact of the use of these strategies will be measured in terms of problem-solving, reduction of waiting time to resolve complaints and caregivers' perception about received care. For this, two clinical studies were designed and a primarily trial-based economic evaluation was planned. Mathematical models will be used to transpose these results into the reality of the SUS, in view of the State Health Secretariat of São Paulo and different Brazilian scenarios. Finally, the investigators also aim to study the possibility of implementing these technologies mentioned in the daily life of the SUS, even after a pandemic, and to check the possibility of incorporating and costing them, as well as exploring possible social impact and relationship with possible inequities in health.
This study is being conducted to assess the long-term safety, tolerability, and efficacy of sotatercept (MK-7962, formerly called ACE-011) in participants with Pulmonary Arterial Hypertension (PAH). This open-label, long-term follow-up (LTFU) study is supported by data from the PULSAR study (Phase 2, NCT03496207) in which treatment with sotatercept resulted in hemodynamic and functional improvements in the study participants, including those receiving maximal PAH therapy with double/triple drug combinations and intravenous prostacyclin. The primary objective of this open-label, LTFU study is to evaluate the long-term safety and tolerability of sotatercept when added to background PAH therapy in adult participants with PAH who have completed prior sotatercept studies. The secondary objective is to evaluate continued efficacy in adult participants with PAH who have completed prior sotatercept studies.
Major abdominal oncology surgery is associated with substantial postoperative loss of functional capacity, and exercise may be an effective intervention to improve outcomes. The aim of this study was to assess efficacy, feasibility and safety of a supervised postoperative exercise programme in patients undergoing immediate internal pudendal artery perforator flap reconstruction for irradiated abdominoperineal resection defects. We will perform a open label, parallel-arm, randomized trial in patients who underwent immediate internal pudendal artery perforator flap reconstruction for irradiated abdominoperineal resection defects in a tertiary university hospital. Patients will be randomized to an early mobilization postoperative programme based on supervised aerobic exercise, resistance and flexibility training or to standard rehabilitation care - bed restriction for 5 days. The primary outcome will be inability to walk without human assistance at postoperative day 5 or hospital discharge.The secondary outcomes will be incidence of surgical complications, ability of walk assessed for the 6-minute walk test, incidence and intensity of fatigue measured by Piper's Revised Fatigue Scale, improvement of quality of life measured by EuroQuol-5D-5L Questionnaire, Incidence of deep venous thrombosis.
This research project has as objective the elaboration and analysis of a new cardiac risk stratification protocol based on clinical and physical variables to predict the occurrence of signs and symptoms during a cardiac rehabilitation program. To this aim, the study will be developed in three stages. The first stage consists of a prospective longitudinal observational study, in which participants of exercise-based cardiac rehabilitation will undergo a physiotherapy evaluation in terms of physical and clinical aspects. After this initial assessment, participants will be followed for 2 months of rehabilitation, when the occurrence of signs and symptoms (chest pain, fatigue, dizziness, arrhythmias, and other minor events) during exercise will be recorded. Based on the data from the initial assessment and the occurrence of signs and symptoms a new cardiac risk stratification protocol will be developed. The second stage of this project consists of another prospective longitudinal observational study in which a new sample of individuals attending cardiac rehabilitation programs will be assessed and stratified for the risk of the occurrence of signs and symptoms during exercise by the new protocol developed. After the risk stratification, this sample will be followed for 2 months and the occurrence of signs and symptoms will be recorded. With this data, the reproducibility and efficacy of the protocol will be evaluated. The third stage of this project consists of a cross-sectional observational study, in which a new sample of participants will be evaluated by two independent physiotherapists for clinical and physical variables, and based on these data will be stratified by the new protocol by the same evaluators independently. After these procedures, the protocol´s agreement between evaluators will be analyzed.
The shortage of anesthetic agents can lead to intraoperative awareness while overdosing can trigger severe intra and postoperative problems. Therefore, monitoring anesthesia's depth (DoA: Depth of Anesthesia) is a crucial but still challenging task. Although some commercial monitors are based on electroencephalogram (EEG), designed to quantify DoA, their use in clinical practice has limitations. On the other hand, heart rate variability (HRV) has valuable information about physiological states, both from the heart and the organism. Classical indices derived from HRV have been shown to be able to differentiate the different stages of anesthesia. In this study, it is proposed to create a model to monitor DoA combining several HRV indices. Patients will be divided into three groups, according to the type of anesthesia to which they will be submitted (inhalation, total or balanced intravenous) and will have the electrocardiogram recorded during the entire surgical procedure. Various HRV indices will be calculated, and machine learning techniques will be used to combine and identify the most relevant index to compose a score that reliably represents DoA. Several commercial devices have been developed to monitor the level of consciousness during anesthesia. Among the most popular tools are included: Narcotrend TM (MonitorTechnik, Bad Bramstedt, Germany); the M-Entropy TM (GE Healthcare, Helsinki, Finland); Nindex SA (Controls, Montevideo, Uruguay) and the Bi-Spectral Index (BIS, TM Medtronic-Covidien, Dublin, Ireland). In this study, BIS or Nindex will also be monitored during the entire period that the patients remain anesthetized and will later be used to compose the DoA score based on HRV. As a result, a computer program will be created to monitor DoA in real-time.
Chemotherapy induced nausea and vomiting are common adverse events related to oncologic treatments. It can have deleterious effect on patients' quality of life and could lead to dose reductions and/or discontinuation of treatment. This study aims to quantify the prevalence of nausea and vomiting induced by highly emetogenic chemotherapy in patients who had adequate antiemetic prophylaxis, also to describe the epidemiologic profile and identify predisposing factors.
Dopaminergic drugs partially alleviate gait problems in Parkinson's disease, but the effects are not sustained in the long-term. Particularly, the freezing of gait, balance problems and other gait issues directly impacts patients' quality of life. Experimental epidural spinal cord stimulation studies have suggested positive effects on locomotion among PD patients, but the effects of non invasive stimulation have never been explored.