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.
One-lung ventilation (OLV) with resting of the contralateral lung may be required to allow or facilitate thoracic surgery. However, OLV can result in severe hypoxemia, requiring a mechanical ventilation approach that is able to maintain adequate gas exchange, while protecting the lungs against postoperative pulmonary complications (PPCs). During OLV, the use of lower tidal volumes is helpful to avoid over-distension, but can result in increased atelectasis and repetitive collapse-and-reopening of lung units, particularly at low levels of positive end-expiratory pressure (PEEP). Anesthesiologists inconsistently use PEEP and recruitment maneuvers (RM) in the hope that this may improve oxygenation and protect against PPC. Up to now, it is not known whether high levels of PEEP combined with RM are superior to lower PEEP without RM for protection against PPCs during OLV. Hypothesis: An intra-operative ventilation strategy using higher levels of PEEP and recruitment maneuvers, as compared to ventilation with lower levels of PEEP without recruitment maneuvers, prevents postoperative pulmonary complications in patients undergoing thoracic surgery under standardized one-lung ventilation.
The aim of this multicenter randomized clinical trial is to compare the clinical, microbiological and immunological effects of the adjunctive use of systemic metronidazole plus amoxicillin administered in different phases of the treatment of generalized chronic periodontitis.
The aim of this study is to evaluate the safety profile of Dengvaxia® when used in the real-world immunization setting Primary Objective: - To measure the incidence of selected adverse events (AEs) and serious AEs (SAEs) occurring over a period of six (6) months after each Dengvaxia® dose administration; - To quantify the association between Dengvaxia® and each of the selected AEs and SAEs for which a risk window after vaccination can be defined, using estimates of relative risk - To monitor the occurrence and frequency of hospitalized dengue disease as well as any other SAEs leading to hospitalization or death, including new and previously unrecognized SAEs, following Dengvaxia® administration on a longer term (up to 5 years after the first Dengvaxia® dose administration. Secondary objectives: - To identify risk factors for hospitalized dengue disease (severe or not) among subjects vaccinated with Dengvaxia®; - To describe the frequency of hospitalized dengue disease and/or other SAEs or selected AEs according to the number of Dengvaxia® doses and/or interval between doses.
The primary objective of this study is to continue to provide Darunavir (DRV) to pediatric patients who previously received DRV in any of three pediatric clinical studies sponsored by Tibotec Pharmaceuticals and continue to benefit from using it, in countries where DRV is not yet commercially available for the pediatric patient, is not reimbursed or cannot be accessed through another source (like access program or government program).
Check the acute influence of caffeine on the autonomic modulation and cardiorespiratory parameters after aerobic exercise. Hypothesized that caffeine can promote a slower recovery of the cardiorespiratory parameters and the SNA recovery after aerobic exercise.
This is a Phase III, double-blinded, placebo-controlled, randomized, multicenter study designed to evaluate the efficacy, safety, and pharmacokinetics of atezolizumab + cobimetinib + vemurafenib compared with placebo + cobimetinib + vemurafenib in patients with previously untreated BRAFv600 mutation-positive metastatic or unresectable locally advanced melanoma.
Prospective collection of data of possible prognostic relevance in patients with indolent non - follicular B-CELL Lymphomas.
Malnutrition in oncologic patients has a negative impact on post- surgical recovery, survival and quality of life. The etiology of malnutrition in cancer patients is multifactorial, therefore, the nutritional assessment should be carried out by different parameters. The objective of this study is to investigate the association and prognostic value of five distinct methods of nutritional assessment (molecular, body composition, functional, anthropometric and subjective) in relation to postoperative complications and short-term survival in patients with cancer. Regarding the molecular parameter, mtor signaling pathwayon will be assessed in rectus muscle samples, harvested in the moment of the operation. Body composition was assessed by computed tomography (CT) and bioelectrical impedance test was conducted to evaluate the phase angle. Handgrip strength was used to determine functionality. The percentage of weight loss in relation to usual weight was the anthropometric parameter used. Subjective Global Assessment (SGA) was used to provide the nutritional diagnosis. Postoperative complications were classified according to the Dindo and Clavien classification. Overall time survival was the period between the first assessment of the patients until death or end of follow-up. Chi-square test, t test, Kaplan-Meier method and the Log Rank test and regression analysis will be used (p <0.05).
The purpose of this study is to obtain experimental data on the possible changes that saliva may suffer when brought to low-level laser therapy protocols for analgesia in the masseter muscle, because this be on the Parotid salivary gland.
The main purpose of this study is to compare how long patients with gastric or gastroesophageal junction cancer live after receiving nivolumab and ipilimumab or nivolumab and chemotherapy compared with patients receiving chemotherapy alone.