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.
Hypersensitivity pneumonitis (HP) is a syndrome with variable clinical presentation in which lung inflammation is caused by inhalation of specific organic antigens or low molecular weight particles in previously sensitized individuals. Systemic symptoms may or may not be present. Chronic HP represents the final stage of the disease, caused by prolonged exposure to a particular antigen, leading to pulmonary fibrosis. In chronic HP, pulmonary function tests (PFTs) commonly present a restrictive ventilatory pattern, with decreased diffusion of carbon monoxide (DLCO). Some patients can also have obstructive disorders with expiratory flow limitation, due to obstruction of the small airways typically caused by bronchiolar involvement in this pathology. However, PFTs are relatively insensitive for detecting small airway involvement when there is concomitant interstitial fibrosis. First, conventional PFTs may be normal in patients with small airway involvement, since they contribute to less than 30% of the total airway resistance. In addition, damage to the small airways in HP is generally occurring parallel to areas of focal fibrosis - even when small airways are involved, these regions can be completely ignored, since they are excluded from ventilation. In summary, traditional PFTs are not sufficiently sensitive to detect diffuse small airway involvement in these diseases. In these cases, other functional tests, such as forced oscillation technique (FOT) and high resolution computer tomography (HRCT) scans of the chest with expired studies, could be used for this purpose. This will be a cross-sectional study, which will include the following evaluations in 28 patients with HP recruited from our clinic: - Clinical variables: (A) demographic and anthropometric data; (B) Clinical data: Onset of symptoms and time of diagnosis C) Dyspnea score: D) Smoking: * Current or former smoker * Smoking history (number of cigarettes smoked per day and for how long); - Spirometry with forced and slow maneuvers before and after bronchodilator (salbutamol); - Plethysmography to measure lung volumes; - Diffusion capacity of carbon monoxide (DLCO); - High-resolution chest CT with expiratory scans; - Six-minute walk test; - Cardio-respiratory test using a maximal incremental treadmill. - Forced oscillation technique (FOT).
This study aims to verify whether the moisture of 400 µg of misoprostol pre uterine evacuation increases the dilatation of uterine cervix compared to dry misoprostol
People infected with HIV often have cognitive dysfunction even if they are on antiretroviral therapy (ART) and have undetectable viral loads. The study evaluated if the addition of maraviroc (MVC) and dolutegravir (DTG) (which are two antiretroviral [ARV] medications) to participants' existing ART regimens improved participants' neurocognitive performance.
The optimal levels of mean arterial pressure that must be achieved in septic shock are subject of debate. Studies tried to correlate blood pressure increase in patients with septic shock with microcirculation. However, there are few studies that specifically assessed septic shock patients with previous arterial hypertension. The main objective of this study is to evaluate the effect of increased blood pressure level in the microcirculation of these patients and compare them with patients without arterial hypertension.
Atopic dermatitis (AD) is an immune disorder, characterized by chronic skin inflammation or relapsing, whose prevalence is increasing worldwide. Its exact etiology remains unknown. The hypothesis that an appropriate early stimulation of the intestinal flora contributes to the establishment of the immune system balance has led to the use of probiotics in the prevention and treatment of AD in several clinical and experimental studies. Therefore, the objectives of this study will evaluate the clinical efficacy of the mixture of probiotics (Lactobacillus and Bifidobacterium) in children with AD through the SCORAD (scoring atopic dermatitis) and to evaluate the effects of this medication in the following laboratory parameters: skin prick test, total serum immunoglobulin E (IgE), inflammation composite (interferon gamma [ɣ - IFN], interleukins [IL1-β, IL-4, IL-6, IL-8] and tumor necrosis factor alpha) and immune tolerance composite (IL-10, IL-17 and transforming growth factor beta [TGF - β]).
The aim of this investigation is to evaluate the impact of exercise in a cardiac rehabilitation program on functional capacity, clinical markers, quality of life and biomarkers in patients with chronic chagasic cardiomyopathy.
Due to the lack of information in the literature about the role of cardiac rehabilitation on Chagas heart failure, the aim of the present study was to evaluate the effects of a cardiac exercise program on functional capacity, cardiac function, respiratory muscle strength, body composition, biomarkers and quality of life among Chagas heart failure patients.
The purpose of this study is to assess platelet aggregability by a "point of care" device (Multiplate®) to decrease the release time for coronary artery bypass graft (CABG ) in patients with acute coronary syndrome (ACS) in use of dual antiplatelet therapy.
This study evaluates the effects of different volumes of aerobic exercise training in cardiovascular parameters of patients with cardiovascular diseases enrolled in a cardiac rehabilitation program.
The FANTOM I pilot study is intended to assess safety of the Fantom Bioresorbable Coronary Scaffold in native coronary arteries.