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 study aims to identify metabolites present in intervertebral discs colonized by C. acnes from patients with low back pain and degenerative disc disease, correlating them with their clinical, radiological and demographic profiles.
This parallel-group randomized, controlled, clinical trial aims to investigate the influence of a 6-month home-based, remotely-monitored, exercise training intervention on musculoskeletal health in patients with Systemic Lupus Erythematosus who have undergone glucocorticoid pulse therapy.
The goal of this clinical study is to compare the study drug, sacituzumab govitecan-hziy (SG), versus docetaxel in participants with advanced or metastatic (cancer that has spread) non-small cell lung cancer (NSCLC).
To evaluate the efficacy, safety and tolerability of intrathecal (IT) OAV101 in treatment naive patients with Type 2 spinal muscular atrophy (SMA) who are ≥ 2 to < 18 years of age over a 15 month trial duration.
Transthyretin amyloidosis exhibits a variety of possible phenotypes, the hereditary neurological form being the most commonly found and studied (familial amyloidotic polyneuropathy or FAP), which can present from oligosymptomatic patients to patients with peripheral sensorimotor polyneuropathy of varying degrees and dysautonomia. Although a specific mutation usually causes a specific phenotype, that is, with a predominantly cardiac or preferential neurological profile, with the increase in the number of diagnosed cases, an overlapping of clinical presentations has been observed. The assessment of the autonomic profile in individuals with familial amyloidotic cardiomyopathy (FAC) has not been well studied, and it is not known whether patients with an exclusively cardiac profile of the disease may present dysautonomia or whether even mutation carriers without cardiac involvement may exhibit it. In this study, the autonomic profiles of patients with familial amyloidotic heart disease will be compared with the profiles of patients who have mutations but without established heart disease and healthy individuals (control group).
The Pulmair Implantable Artificial Bronchus (IAB) is a device intended for implantation into the diseased bronchi of emphysema patients. The IAB is indicated for bronchoscopic treatment of adults with Chronic Obstructive Pulmonary Disease (COPD)/emphysema to relieve hyperinflation and allow bidirectional ventilation of the affected lobes. The objective of this trial is to demonstrate a suitable benefit/risk profile to support a subsequent trial of the safety and effectiveness of the IAB to achieve its intended purpose. The trial will enroll 24 subjects implanted with IAB(s), at no more than three study centers.
SARS-CoV-2 is a highly transmissible and pathogenic coronavirus that emerged in late 2019 and has caused a pandemic of acute respiratory disease, collectively called coronavirus disease-19 (COVID-19). SARS-CoV-2 has a high transmission rate, and severe cases of COVID-19 require admission to hospital intensive care units with the need for mechanical ventilation and associated high mortality. Currently cases continue to rise in many countries as the 'second and third waves' of SARS-CoV-2 infection evolve. The authorized vaccines and most vaccines in development are focused on the major antigenic target of the virus, the SARS-CoV-2 spike (S) protein. Authorization was granted in Brazil by ANVISA for the Fiocruz/Oxford-AstraZeneca ChAdOx1-S COVID-19 vaccine as a 2-dose homologous vaccination regimen, 28- to 84-days apart. Emergency Use Authorization (EUA) was also granted for Sinovac Biotech's CoronaVac vaccine as a 2-dose homologous vaccination regimen, 28 days apart. Further vaccines, using different platforms are approved or expected to be approved for use against SARS-CoV-2. Most of the vaccines are expected to be authorized as 2-dose, homologous vaccination series. SCB-2019 is Clover's adjuvanted recombinant SARS-CoV-2 trimeric S-protein subunit vaccine. The SCB-2019 antigen includes SARS-CoV-2 S protein as a trimer fused to Trimer-Tag and is produced in Chinese hamster ovary cells (CHO). SCB-2019 preserves the native trimeric structure of S-protein in the prefusion form and induces neutralizing antibodies to SARS-CoV-2. Trimer-Tag is derived from the fully-human C-propeptide domain of pro-collagen and is capable of self-trimerization, thus fusing any biologically-active proteins in-frame with Trimer-Tag. The resulting fusion proteins expressed in mammalian cells are secreted as disulfide bond-linked homotrimers. The immunogenicity and safety of different dose levels (3, 9, and 30 μg) SCB-2019 vaccine, administered as 2-dose regimen 21-days apart was assessed in a phase 1 clinical study. All dose levels were well-tolerated and induced neutralizing antibodies against S protein of the SARS-CoV-2 virus. Based on the results of that study, Clover selected 30 μg of SCB-2019 in combination with the CpG 1018/alum adjuvant system for further evaluation in the phase 2/3 clinical program as having the most favorable benefit/risk profile. The pivotal study (CLO-SCB-2019-003) included approximately 30,000 healthy participants and individuals with stable pre-existing chronic medical conditions, is being conducted in multiple countries, including in Brazil. The primary purpose of that study (CLO-SCB-2019-003) is to demonstrate the safety and efficacy of SCB-2019 in the prevention of COVID-19. The study showed efficacy. Heterologous boost vaccinations using different platforms may elicit immune responses of greater magnitude and breadth than can be achieved by priming or boosting with the same vaccine (He et al, 2021, Spencer et al., 2021). Also, given the anticipated challenges of vaccinating large proportions of the population, especially with respect to supply, out-of-stock situations, and potential misadministration, it is important for policy makers to have data on flexible vaccination schedules, where the third dose might be different from the priming platform. Protein-based adjuvanted vaccines have the advantage of being from a known and licensed technology that can produce high quantities of vaccine. Protein-based adjuvanted vaccines have also been shown to be highly immunogenic, both in the context of COVID-19 (Keech 2020; Richmond 2021) and other licensed vaccines (Skwarczynski 2016). The purpose of this study is to compare the immunogenicity and safety of heterologous and homologous booster schedules in individuals who received ChAdOx1-S or CoronaVac vaccination previously. The study will be performed in 2 stages - Stage 1 will serve to down-select one of the SCB-2019 formulations for boosting. Stage 2 will compare homologous and heterologous booster regimens in individuals who have received a 2-dose primary vaccination series of either ChadOx1-S or of CoronaVac.
The purpose of this study is to assess the effect of a mindfulness-based intervention on DNAmethylation, cognitive functions, stress response, and well-being in healthy female adults.
Pacients who use mechanical ventilation (MV) need to pass weaning, a interruption process of ventilatory support. To predict this outcome, several scores have been developed, however, fail index in weaning and extubation remains high. The objective of this study is to evaluate the effect of ExPreS - Extubation Predictive Score - on rates of successful extubation. By a randomized clinical trial, this reseach will take place in ICUs of several hospitals. Therefore, it is expected that a difference between devices to predict extubation sucess exists and, because ExPreS is a protocol that evaluates different parameters related to many organs and systems, it presents a better capacity of predicting extubation sucess in MV patients.
Abstract: Antineoplastic therapy (AT) is one of the most used treatment modalities to fight cancer, either curatively or palliatively. There are several possible routes of administration, but the intravenous is the most used for its safe absorption and maintenance of the drug's serum level (1). Among the central catheters used in oncology, the long-term Totally Implantable (CTI) catheter is one of the most well accepted by patients and healthcare professionals. Being used in the administration of fluids, medication, parenteral nutrition or to obtain blood. Maintaining the CTI is essential to maintain its permeability, and thus, its proper functioning (2-4). The COVID-19 pandemic requires several readjustments from health institutions to ensure healthy environments for patients and less exposure to the hospital environment, one of the measures to focus on increasing the maintenance time of the ICU from 30 to 60 days. Objective: To verify the safety of increasing the maintenance interval of the Port-a-Cath catheter from 30 to 60 days through the rate of infection, obstruction, dysfunction in the infusion of solutions and blood reflux at the end of a year of follow-up. Method: This is an observational study, a single research arm, with a scheduled duration from January 2021 to August 2022 at the chemotherapy clinics of the A.C.Camargo Cancer Center. Expected results: This investigation is expected to demonstrate that maintenance with saline every 60 days does not increase obstruction or infection in patients who are in clinical follow-up compared to maintenance for 30 days.