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.
Interstitial Cystitis / bladder pain syndrome (CI / BPS) is a debilitating pathology with a negative impact on the quality of life of affected individuals. It is characterized as the sensation of pain or discomfort related to the urinary bladder, accompanied by symptoms of the lower urinary tract, in the absence of infection. Among the phenotypes are Cystitis with Hunner's ulcer, essentially inflammatory pathology and without Hunner's lesion, non-inflammatory frequently associated with somatoform systemic changes. Functional changes in urothelium and epithelial barrier, neurogenic inflammation and autoimmune mechanisms are involved in the development of the disease. Medical ozone has anti-inflammatory, antioxidant, cytoprotective, antimicrobial and immunomodulatory properties. When administered, it is dissolved in biological fluids, immediately reacting with glycoproteins composed of carbohydrates and polypeptide chains. This reaction results in the formation of hydrogen peroxide (H2O2), lipid oxidation products (LOS), increased activation of erythroid-related nuclear transcription factors (Nrf2) activation of antioxidant response transcription elements (ARE) and increased variety of antioxidant enzymes that act as free radical scavengers. Benefits of O3 have been demonstrated in the treatment of neuropathic pain and hyperalgesia associated with the analgesic and anti-inflammatory effect. The objective of this work is to evaluate the effect of intravesical ozone gas administration in patients with Interstitial Cystitis / Painful Bladder Syndrome with low response to conventional therapy.
This is a Phase II, randomized, blinded, active-controlled, global, multicenter study designed to evaluate the safety and efficacy of lomvastomig and tobemstomig, compared with nivolumab, in patients with advanced or metastatic esophageal squamous-cell carcinoma (ESCC) refractory or intolerant to fluoropyrimidine- or taxane- and platinum-based regimen. Following approval of the protocol amendment version 3, recruitment into the lomvastomig arm has been stopped. The decision to stop recruitment for lomvastomig was based on strategic considerations and not based on emerging safety and/or efficacy data. The benefit/risk assessment for lomvastomig remains unchanged. The study was planned to enroll participants randomized in a 1:1:1 ratio to receive lomvastomig, tobemstomig, or nivolumab. With version 3 of the protocol, recruitment into the lomvastomig arm has stopped, and moving forward, participants will be randomized in a 1:1 ratio to receive either tobemstomig or nivolumab.
The study will evaluate the efficacy and safety of trastuzumab deruxtecan (also known as T-DXd, DS-8201a), either alone or in combination with pertuzumab, in treating patients with Human epidermal growth factor receptor 2 (HER2)-positive breast cancer as a first line of treatment in the metastatic setting.
The objective of this study is to compare the effects of two similar long-term interprofessional programs, one of them delivers by in-person classes, and another delivers by online classes on the quality of life of people with Parkinson's. Method: People with PD will be randomized into 3 groups: (1) Face-to-face group, in which participants, in groups of 10 persons, followed a multidisciplinary health education program composed of 10 monthly face-to-face lectures; (2) Remote group, in which individuals followed the same lectures delivered by online; and (3) Control group, in which participants followed no lecture. The participants will be evaluated before (BED) and after (ABP) the education program conclusion (10 lectures). Health quality of life was adopted as a primary outcome. Independence in daily living activities, motor and non-motor symptoms severity, and global cognitive capacity was adopted as secondary measures, Besides, all participants will be asked to answer a survey to evaluate the knowledge improvement of key learning points of lectures. The results will be analyzed by ANOVA for repeated measures.
This study is done to find out whether the medicine, semaglutide, has a positive effect on early Alzheimer's disease. Participants will either get semaglutide or placebo (a "dummy" medicine which does not contain any study medicine) - which treatment participants get is decided by an equal chance. The study will last for up to 173 weeks (about 3 years and 4 months). Participants will have 17 clinic visits and 1 phone call with the study doctor. The study includes various tests and scans. At 10 of the clinic visits participants will have blood samples taken. Participants must have a study partner, who is willing to take part in the study. Women cannot take part if pregnant, breastfeeding or plan to become pregnant during the study period. A cerebrospinal fluid (CSF) sub-study will be performed as a part of the study. The sub-study will be performed on a selection of sites based on their experience with CSF sampling and willingness to participate in this sub-study. The endpoints related to this sub-study are exploratory only.
This study is done to find out whether the medicine, semaglutide, has a positive effect on early Alzheimer's disease. Participants will either get semaglutide or placebo (a "dummy" medicine which does not contain any study medicine) - which treatment participants get is decided by an equal chance. The study will last for up to 173 weeks (about 3 years and 4 months). Participants will have 17 clinic visits and 1 phone call with the study doctor. The study includes various tests and scans. At 10 of the clinic visits participants will have blood samples taken. Participants must have a study partner, who is willing to take part in the study. Women cannot take part if pregnant, breastfeeding or plan to become pregnant during the study period. A cerebrospinal fluid (CSF) sub-study will be performed as a part of the study. The sub-study will be performed on a selection of sites based on their experience with CSF sampling and willingness to participate in this sub-study. The endpoints related to this sub-study are exploratory only.
This main long-term extension study is designed to evaluate the long-term safety and tolerability of faricimab 6 milligrams (mg) administered by intravitreal injection at a personalized treatment interval (PTI) to participants with neovascular age-related macular degeneration (nAMD) who enrolled in and completed one of the Phase III studies: GR40306 (NCT03823287) or GR40844 (NCT03823300), also referred to as the parent studies. Eligible patients who consent to participate in this main study will be enrolled upon completion of the end-of-study visit in the parent study. Additionally, there is a substudy that is being conducted. The aim of this substudy is to evaluate the impact of intravitreal faricimab on the health of the corneal endothelial cells in the study eyes of patients with nAMD to fulfill a U.S. Food and Drug Administration (FDA) post-marketing requirement. The fellow eyes of the same enrolled participants in the substudy will serve as the controls.
This is a Phase III, open-label, multicenter, randomized, two-arm study designed to evaluate the efficacy and safety of atezolizumab plus either lenvatinib or sorafenib versus lenvatinib or sorafenib alone in participants with locally advanced or metastatic Hepatocellular Carcinoma (HCC) who have progressed on prior systemic treatment with atezolizumab plus bevacizumab combination.
The primary purpose of this study is to compare the effect of mitapivat versus placebo on transfusion burden in participants with transfusion-dependent alpha- or beta-thalassemia (TDT).
The primary purpose of this study is to compare the effect of mitapivat versus placebo on anemia in participants with alpha- or beta-non-transfusion dependent thalassemia (NTDT).