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.
Patients with chronic rheumatic diseases (such as systemic lupus erythematosus [SLE], rheumatoid arthritis [RA], ankylosing spondylitis [AS], juvenile idiopathic arthritis [JIA], poly/dermatomyositis [PM/DM], systemic sclerosis [SSc], systemic vasculitis, and primary Sjögren's syndrome [pSS]) are particularly susceptible to infectious diseases due to autoimmune disorder itself and its treatment (immunosuppressive therapies). Similarly, people living with HIV/AIDS (PLWHA) are predisposed to infections by different agents. The current 2019 Coronavirus Disease Pandemic-19 (COVID-19), caused by the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) began in December 2019 in Wuhan, China, and quickly became a global health and economic emergency by taking to an unprecedented burden on health systems around the world. However, SARS-Cov-2 infection raised particular concern in patients with autoimmune rheumatic diseases (DRAI) since, due to chronic inflammatory immune dysregulation and the regular use of immunosuppressive drugs, these patients are considered to be at high risk of contracting SARS-CoV-2 and potentially evolving to a worse prognosis. The overlap between the COVID-19 pandemic and the HIV/AIDS pandemic also poses an additional challenge, as the impact of co-infection is not yet fully known. The response to vaccines for other agents, however, has already been described as compromised in PLWHA. Vaccination is the most effective preventive measure to control the spread of coronavirus and to reduce associated complications. Usually, live or attenuated vaccines are not recommended for patients with chronic rheumatic diseases using immunosuppressants. However, immunization with inactivated agents is strongly indicated, resulting, in general, in good immunogenicity and adequate vaccine safety, as well as without relevant deleterious effects on diseases. Vaccine efficacy studies are needed to verify the immunogenicity of the vaccine against COVID-19 in immunosuppressed patients with rheumatological disease and those with HIV-related disease considering the risk of greater severity. In addition, it is important to assess the safety of the vaccine in this population as well as the possibility of reactivating the rheumatological disease itself. The present study will evaluate the safety and immunogenicity of the CoronaVac (Coronavirus vaccine, Sinovac Biotech Ltd.) in patients with rheumatic diseases and PLWHA
Results will be submitted, however please note that data are not yet available for all serology outcome measures. This will be a Phase 2/3, randomized, placebo-controlled, observer-blind study evaluating the safety, tolerability, and immunogenicity of 30 µg of BNT162b2 or placebo administered in 2 doses, 21 days apart, in approximately 350 healthy pregnant women 18 years of age or older vaccinated at 24 to 34 weeks' gestation. Participants will be randomized 1:1 to receive BNT162b2 or placebo (saline).
This study is to evaluate of the accuracy of biomarkers (i.e. circulating endothelial and immune activation markers) that indicate progression to severe disease in patients with suspected COVID-19 in the Emergency Department. It is a prospective observational study of patients presenting to emergency departments with a clinical suspicion of COVID19. All participants will have plasma samples collected for biomarker analysis, and will be tested for SARS-CoV-2 infection with a nasopharyngeal swab. Participants will be managed according to the best local practices.
This is a stepped-wedge cluster randomized trial to assess effectiveness of Sinovac's Adsorbed COVID-19 (Inactivated) vaccine. Residents in the urban area of a municipality are eligible to participate. The city was divided in clusters and those cluster were grouped to determine the offer of vaccination in four steps. The vaccine will be offered to adults (18 years old and above) according to the location of their homes in a cluster. The vaccine schedule is two doses with four-weeks interval. Baseline samples to determine previous immunity will be collected before vaccination. Cases of COVID-19 reported in the city will be recorded according to the WHO clinical progression scale. Comparison of periods before and after vaccination and relation to immunization coverage will be considered for the assessment of effectiveness in the clusters and groups of clusters.
To evaluate the effectiveness of the probiotic Bifidobacterium lactis CCT 7858 in preventing and / or improving gastrointestinal symptoms in adults using antibiotics. For this, a randomized, double-blind, placebo-controlled clinical trial will be carried out. The sample will be composed of adults who will be recruited in a hospital, who have been hospitalized and receive a prescription for antibiotics. The individuals will be separated into two groups: intervention and placebo. 104 patients will be included, 52 for each group. Inclusion criteria: adults of both sexes and aged between 18 and 65 years, who have been recruited within 24 hours after starting antibiotic treatment, the prescribed treatment should be with antibiotics for a minimum of 9 days and a maximum of 14 days. The informed consent must be signed before starting the study.
This is a Phase III, multicenter, randomized, double-masked, active comparator-controlled, parallel-group study evaluating the efficacy, safety, and pharmacokinetics of faricimab administered by intravitreal (IVT) injection at 4-week intervals until Week 24, followed by a double-masked period of study without active control to evaluate faricimab administered according to a personalized treatment interval (PTI) dosing regimen in patients with macular edema due to central retinal vein occlusion (CRVO) or hemiretinal vein occlusion (HRVO).
This is a Phase III, multicenter, randomized, double-masked, active comparator-controlled, parallel-group study evaluating the efficacy, safety, and pharmacokinetics of faricimab administered by intravitreal (IVT) injection at 4-week intervals until Week 24, followed by a double-masked period of study without active control to evaluate faricimab administered according to a personalized treatment interval (PTI) dosing regimen in participants with macular edema due to branch retinal vein occlusion (BRVO).
This study is designed as an international, open-label, controlled two-arm, randomized phase III comparison study evaluating the efficacy and safety of trifluridine/tipiracil in combination with bevacizumab versus trifluridine/tipiracil monotherapy in patients with refractory mCRC.
The purpose of this Phase III study is to confirm that SNG001 can accelerate the recovery of hospitalised patients receiving oxygen with confirmed Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2). Safety and other efficacy endpoints will also be assessed.
Almost 35% of patients treated to dermatosis have some psychiatric disorder. The aim of this study is to evaluate the prevalence and severity of skin picking disorder and other dermatosis, and also test the efficacy of an online-delivered cognitive-behavioral therapy to improve skin picking disorder severity.