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.
On a global scale, tuberculosis (TB) is the single most important infectious cause of morbidity and mortality. The World Health Organization has estimated that one-third of the entire world's population carries latent TB infection. A key TB control strategy is therapy of latent TB infection (LTBI). The current standard regimen is 9 months of Isoniazid (9INH). This regimen has excellent efficacy if taken regularly, but its effectiveness is substantially reduced by poor compliance. Serious side effects, such as hepato-toxicity can occur. Three shorter alternatives have been recommended: 6 months INH (6INH), 2 months Rifampin - Pyrazinamide (2RIF-PZA) and 4 months Rifampin (4RIF). The regimen of 6INH is less efficacious than 9INH, while 2RIF-PZA has been largely abandoned because of serious toxicity. Based on some evidence in treatment of LTBI, and extrapolating from extensive experience with treatment of active TB, it is believed that 4RIF has similar efficacy as 9INH. Therefore, the investigators are initiating the first multi-site international randomized trial that will compare the effectiveness of 4RIF and 9INH in preventing active tuberculosis.
The purpose of this study is to evaluate the impact of music therapy on breastfeeding rates among mothers of premature newborns. Hypothesis: Music therapy applied to mothers of premature newborns increases the rates of maternal breastfeeding at the time of the infant hospital discharge and at follow-up visits.
This open-label, rater-blinded extension study will enroll patients who have relapsing-remitting multiple sclerosis (RRMS) and who participated in one of three prior Genzyme-sponsored studies of alemtuzumab [CAMMS223 (NCT00050778), CAMMS323 (NCT00530348) also known as CARE-MS I, or CAMMS324 (NCT00548405) also known as CARE-MS II]. The purposes of this study are: 1. To examine the long term safety and efficacy of alemtuzumab treatment in patients who received alemtuzumab as their study treatment in one of the prior studies. 2. To examine the safety and efficacy of initial alemtuzumab treatment in this study for patients who received Rebif® (interferon beta-1a) as their study treatment in one of the prior studies. 3. To determine if and when further alemtuzumab treatment is needed, and the safety and efficacy of this "as needed" treatment. This applies both to patients who received alemtuzumab for the first time in one of the prior studies or for the first time in this extension study.
This 2 stage study will compare the pharmacokinetics and safety profile of subcutaneous and intravenous rituximab in participants with follicular lymphoma. In the first stage, participants who have achieved at least a partial response after induction treatment with intravenous rituximab will be randomized to one of 3 treatment cohorts, to receive rituximab 375 milligram per square meter (mg/m^2) intravenously, 375 mg/m^2 subcutaneously or 625 mg/m^2 subcutaneously, and pharmacokinetics evaluated on an ongoing basis. Upon selection of the subcutaneous dose (800 mg/m^2) which results in rituximab trough plasma concentration (C trough) values comparable to those achieved with the intravenous formulation, participants in the second stage of the study will be randomized to receive either the subcutaneous or intravenous formulation to demonstrate comparability of the C trough levels with both routes of administration. Maintenance therapy will continue every 2 or 3 months with the subcutaneous formulation.
This research, aimed to verify whether the use of vascular ultrasonography (VUS) could lead to better results in the peripheral venous access implementation in children. Objectives: To compare, regardless of the number of venous puncture attempts, peripheral venous access obtained in children, according to VUS use or traditional method for peripheral intravenous catheter (PIC) insertion; assertiveness in the use of PIC in children, defined as success in the first attempt of puncture and PIC withdrawal according to release of treatment, related to VUS or traditional method and to describe the influence of VUS on PIC dwell time and development of local complications related to the use of intravenous therapy in children.
This randomized study will compare maintenance therapy with Avastin (bevacizumab) + Xeloda (capecitabine) versus Avastin alone, in patients with HER2-negative metastatic breast cancer who have not progressed during first-line therapy with docetaxel + Avastin. Eligible patients will receive up to 6 x 3 week cycles of treatment with Avastin (15 mg/mg IV on Day 1 of each cycle) + docetaxel (75-100 mg/m2 IV on Day 1 of each cycle). Those patients who do not progress will be randomized to 3 week cycles of either a) Avastin (15 mg/kg IV on Day 1 of each cycle) + Xeloda (1000 mg/m2 po bid on Days 1-14 of each cycle) or b) Avastin alone. Study treatment will continue until disease progression, unacceptable toxicity, patient request for withdrawal or end of study, and the target sample size is 100-500 individuals.
Obstructive sleep apnea syndrome (OSAS) has been linked to resistant hypertension, but the effect of treatment of OSAS on the resistant hypertension have no been established. In a double-blind randomized clinical trial patients with resistant hypertension with at least moderate sleep apnea will be randomized to receive therapeutic CPAP or Placebo CPAP for eight weeks in an ambulatory set. The investigators want to determine any difference on hypertension control between the 2 management strategies.
In this study the investigators aim to test if a procalcitonin (PCT) - guided strategy allows to reduce the antibiotic use in patients with febrile neutropenia hospitalized in a Brazilian tertiary university hospital, causing no harm.
This study is a long-term post-treatment follow-up to study WV19432, which evaluated the efficacy and safety of PEGASYS in patients with HBeAg positive chronic hepatitis B (CHB).Patients who received treatment with PEGASYS, and completed follow-up, are eligible to enter this post-treatment follow-up study. The anticipated time on study was 5 years, and the target sample size is 100-500 individuals.
The primary objective of this study was to compare the effect of migalastat (123 milligrams [mg] of migalastat [equivalent to 150 mg of migalastat hydrochloride]) (migalastat) versus placebo on kidney globotriaosylceramide (GL-3).