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 study will compare clinically the efficacy, time to action and duration of different treatments for patients with non-carious cervical lesions (NCCLs) that caused dentin hypersensitivity (DH).
Hemorrhoidal disease diagnosis is based on medical history combined with physical exam and complementary exam. Physical exam should include inspection at exertion, digital rectal exam ,and anoscopy. The treatment indicated in patients with hemorrhoidal disease varies according to the disease grade, and it may be clinical or surgical. The classic surgical approach is an open surgical correction , a technique that has high success rates and low recurrence rates; however, it is accompanied by intense pain. Based on the concept that hemorrhoids are formed by pathological changes in submucosal pads vascularization in anal channel transition zone, selective embolization of upper rectal artery branches were performed in 14 patients with long-term severe rectal bleeding secondary to hemorrhoidal disease by Vidal et al. with no pain or ischemic symptoms being seen. - Main Objective To determine the feasibility of implementing upper rectal artery embolization in the treatment of patients with grade 2 (protrude beyond the anal verge with straining or defecating but reduce spontaneously) and 3 hemorrhoids (protrude spontaneously or with straining and require manual reduction), relating its short- and long-term outcomes with patients undergoing surgical repair through the classic technique - Hypothesis The expectation is that, with upper rectal artery embolization, patients experience a decrease or remission of symptoms, such as bleeding, pain and symptoms related to hemorrhoidal pads edema. Another expectation is that the decrease in the number of days to return to daily activities
Recent studies have demonstrated that the balance of intestinal microbiota is affected in chronic kidney disease (CKD), leading to a condition known as intestinal dysbiosis. These changes were associated with metabolic complications, accumulation of uremic toxins, inflammation, progression of CKD and cardiovascular risk. Measures with the aim of restore the balance of intestinal flora are suggested, such as the intake of probiotics composed of beneficial bacteria, but few studies have discussed the effect of these supplements in CKD. The present study aims to evaluate the effect of consumption of probiotics in factors associates with progression of CKD and cardiovascular risk. To such will be conducted a double-blind, placebo-controlled, and randomized clinical trial with 30 patients with CKD in stages 3-5, treated in ambulatories of Nephrology of the Hospital de Clínicas de Porto Alegre, independently of etiology and with steady renal function. Patients will be excluded whether in substitutive renal therapy, kidney transplant, on antimicrobial therapy or immunosuppressive agents in the last three months or with acute clinical events. The assessment will include clinical and nutritional parameters, estimated glomerular filtration rate, proteinuria, serum lipids, inflammatory factors, and bowel habits. The study protocol includes the recruitment of patients who will undergo to 4-week washout period. After patients will be randomized and provided with probiotic therapy (intervention group) or placebo (maltodextrin; control group) for 24 weeks. All patients will be instructed to consume 2 sachets/day of probiotic or placebo and receive nutritional advice. All data will be analysed by the principal investigator with the support of a trained statistician and the chief investigator. The statistical programme SPSS will be used.
This Phase 3 study in hemodialysis-dependent subjects with anemia will evaluate the efficacy and safety of daprodustat administered three-times weekly compared to epoetin alfa, the current standard of care. This study includes a 4 week Screening Period, a 52 week Treatment Period and a 4 to 6 week follow-up period. Each subject will remain in the study for up to 62 weeks. Approximately 402 subjects will be randomized to receive either daprodustat three times weekly or epoetin alfa three-times weekly or once weekly, depending on dose level.
This prospective observational cohort study will investigate the impact of a bundle of nine preventive measures (Assessment, prevention and management of pain; spontaneous awaking trial; spontaneous breathing trial; choice of sedation and analgesia; delirium assessment, prevention and management; early mobility; family communication and ICU Diary) on the incidence and severity of Post-Intensive Care Syndrome (PICS) and clinical outcomes in critically ill patients
The objectives of Sub-Study 1 are to evaluate the efficacy, safety, and pharmacokinetics of risankizumab as induction treatment in subjects with moderately to severely active ulcerative colitis (UC), and to identify the appropriate induction dose of risankizumab for further evaluation in Sub-Study 2. The objective of Sub-Study 2 is to evaluate the efficacy and safety of risankizumab compared to placebo in inducing clinical remission in subjects with moderately to severely active UC.
A two part, Phase 1b/2 study to define a recommended Phase 2 dose of VRx-3996 in combination with valganciclovir (Phase 1b) designed to evaluate the efficacy of this combination in relapsed/refractory EBV+ lymphomas.
The aim of the present study was to evaluate the effect of a xylitol containing propolis tablet on the salivary pH, total microorganisms count and soluble and insoluble extracellular polysaccharide concentration of the dental biofilm of adolescents in a randomized controlled clinical trial. In addition, evaluate the acceptability of the individuals regarding the characteristics of the tablets (appearance, taste, aroma and texture) through a questionnaire. To that end, healthy adolescents between 10 and 19 years old, without active carious lesions, who seek care at the Pediatric Dentistry Clinic of the Universidade Federal do Rio de Janeiro (UFRJ) will be randomly assigned to the two groups of the study: control group (propolis- consumers of tablets with propolis), respecting an interval of 30 days of rest between the consumption of the tablets. The study will be cross-checked and the principal investigator will be blind. The tablets will be given to the participants on an exact number of days of use and they will be instructed to consume two tablets per day for 7 uninterrupted days. After 30 days of interval, they will consume the other type of tablet with the same recommendations of the first one. The total non-stimulated saliva collection will be performed at the beginning of the study (before the consumption of the tablets) and 7 days after the intervention of each type of tablet, as well as the collection of the dental biofilm. Saliva and biofilm samples from all individuals will be identified and later analyzed in the laboratory, on the same day of collection, to measure the salivary pH, with the aid of a phmeter, and evaluation of the growth of total microorganisms (CFU / mg biofilm ), respectively. From the biofilm collected and stored in saline, concentrations of soluble and insoluble extracellular polysaccharides will also be measured by means of a spectrophotometer. Statistical tests will be used to compare the groups, with a significance level of 5%. As results, the propolis-containing tablet is expected to increase the salivary pH and decrease the number of total microorganisms in the dental biofilm.
Ostearthritis is a great source of pain. In symptomatic hip the pain can lead the major disability and poor quality of life. Understand the musculoskeletal factores can lead to a better clinical management. The muscle strenghening of posterolateral complexo of hip is a important consideration. General Objective: Perform a Kinetic analysis 2D using na anterior wedge. Specific objective: Analyze the influence of posterolateral hip complex. Controlled clinical trial, composed by 30 individuals with and without osteoarthritis of hip e will be used a tools; Analogic Visual Scale, manual dynamometry to analyze force and kinetic analyze of gait through of Myovídeo analysis software.
Periorbital hyperchromia (POH) or periorbital hyperpigmentation, commonly known as "dark circles", is a relatively common condition and a frequent reason for dermatological consultation. It is defined as brown-colored pigmentation, ranging from light to dark, which mainly involves the lower eyelids. POH affects individuals over a wide age range, including both sexes and all ethnicities, and is associated with a tired and aged facial appearance. The most commonly affected people are those with the highest skin phototypes. Although the prevalence is similar between sexes and age groups, POH is a more frequent complaint in women. The dark circles characteristic of POH can negatively impact patients' quality of life, although it is not a condition associated with morbidity. Popularly it is believed that the poor quality of sleep is a factor responsible for its appearance, but there is no consistent data in the literature that prove this.