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.
Hypothesis: metronidazole gel applied topically after periodontal debridement in smokers volunteers could improve clinical parameters when compared to metronidazole tablets + periodontal debridement. Method: 30 smokers with chronic periodontitis were randomly assigned into 3 groups: periodontal debridement combined with 3 g placebo gel; periodontal debridement combined with daily topical application of 3 g metronidazole benzoate gel (15%); and periodontal debridement combined with a daily single dose of 750 mg metronidazole. Clinical parameters evaluated were visible plaque, gingival bleeding, probing pocket depth and relative attachment level.
This double-blind randomized, parallel group study will evaluate the efficacy and safety of lenalidomide (Revlimid, CC-5013) in combination with rituximab (MabThera/Rituxan) in patients with relapsed or refractory follicular lymphoma or marginal zone lymphoma. Patients will be randomized to receive either lenalidomide or placebo for twelve 28-day cycles in combination with rituximab. Anticipated time on study treatment is 1 year.
Twenty-four patients with known heart failure will be recruited. They will undergo a cardiac magnetic resonance for ventricular analyses and after this first exam they will be randomized to placebo or Sildenafil. After one hour drug intake they will undergo another cardiac magnetic resonance to evaluate the drug impact on right and left ventricular function.
Introduction: Daily stress levels of population are increasing over the last decades. Frequent spouse to stress is considered an important risk factor for development of cardiovascular diseases. Other well documented risk factor for cardiovascular diseases is systemic hypertension which, in turn, has been related to elevated blood pressure reactivity (BPR) to stress. The exacerbated BPR may suggest a poor autonomic modulation due to an elevated sympathetic tone, condition that has been associated with medium to long-term cardiovascular complications. Also, some reports have demonstrated that individuals hyper-reactive to stress chronically increase their risk for psychological disorders such as anxiety, irritability and frustration. These feelings are associated to increased sympathetic tone induced chronic elevation in BP. Although the hemodynamic benefits of aerobic and resistance exercises had been documented in a variety of reports5, the acute effects of the aforementioned exercise modes combined in a circuit method on post-exercise BP, including the responses to cardiovascular stressor test need further investigations. Objective: To investigate the blood pressure (BP) responses to cardiovascular stressor test after a combined exercise circuit session at moderate intensity. Methods: Twenty individuals (10male/10fem; 33.4±6.9years; 70.2±15.8kg; 170.4±11.5cm; 22.3±6.8 %body fat) volunteered to randomly perform on different days: 1) Exercise session consisting of 3-laps in a circuit model in the following sequence: knee extension, bench press, knee flexion, rowing in the prone, squat, shoulder press and 5-min of aerobic exercise at 75-85% of age-predicted maximum heart rate and/or 13 in the Borg-Scale [6-20]. The sets of resistance exercise were composed by 15 repetitions with ~50% of one repetition maximum test and; 2) a control session without exercise. The systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured at resting and during 1h of recovery in both experimental sessions. After that, blood pressure reactivity (BPR) was evaluated using the Cold Pressor Test (a test with hand in the cold water during one minute). The hypotheses are that after doing the exercise session occur attenuation of blood pressure increase during the Cold Pressor Test compared to sitting without exercise (control session).
This study will collect data of patients who are treated with TACE followed by sorafenib for hepatocellular carcinoma (HCC) or patients without Sorafenib after TACE. In contrast to a prior observational study on sorafenib (GIDEON study), where pre-treatment with TACE was documented retrospectively, this study will collect more detailed information about the TACE treatment and the status of a patient when treatment with sorafenib is started.
The aim of the present study was to compare the pharmacokinetic profiles and to evaluate the bioequivalence of two commercial amoxicillin-suspension formulations in healthy Brazilian volunteers.
Pain affects up to 30% of the general population. In particular, neuropathic pain (NeP) is caused by lesion or desease affecting peripheral or central somatosensory pathways and affects 7% of the adult population. Despite the availability of evidence based pharmacological and surgical treatment for NeP, about 50% of patients remais symptomatic despite best medical treatment. Some neuropathic pain syndromes are specially refractory. In particular, central NeP is caused by disease or lesion to central structures involves in somatosensory integration of nociceptive information is non-responsive to drugs usually employed in other NeP syndromes. Classical neuromodulatory techniques such as conventional repetitive Transcranial Magnetic Stimulation aiming at the motor of prefrontal cortices are ineffective to relieve pain in this population. Recently new technology advances have made possible non-invasive stimulation of deeper cortical targets. Some of them are activelly involved in the integration of the perception of pain, such as the anterior cingulate cortex or the posterior insula. The aim this study is to treat 90 patients with central pain (post stroke pain, spinal cord lesions after trauma or demyelinizating diseases) under best medical pharmacological treatment in three different conditions: AAC (n= 30 with the H-Coil), Superior Posterior Insula (SPI) n=30 cooled double cone coil double cool coil, and sham(n=30). Each patients will undergo daily stimulation for a week, then weekly stimulations for 3 months (total of 17 sessions). The main study outcome is pain relief at the last stimulation week (visual-analogic scale). Secondary end-points are changes in the McGill Pain Questionnaire, Neuropathic Pain Symptom Inventory, DN4 questionnaire, SF -36, brief pain inventory and cognitive assessment including the trail making test A and B, Strrop color interference test, and subscalles from the CERAD. All patients will undergo quantitative sensory test and measurements of cortical excitability over M1 before and after to treatment.
Objective: To evaluate the effects of technical-Breath Stacking (BS) and incentive spirometry (IS) on the volume of the chest immediately after and within thirty minutes after the techniques in patients with Parkinson's disease (PD). Methods: This is a study of cross-over. The study investigated 14 patients with mild to moderate PD. The subjects performed the technique Breath-Stacking, incentive spirometry volume and participated in a phase control according to randomization. The volunteers were evaluated by opto-electronic plethysmography in four stages: before, immediately after fifteen and thirty minutes after the completion of the techniques. The investigators used a repeated measures ANOVA with post-hoc Tukey test for parametric variables, and the Friedman test with post-hoc Dunns for nonparametric variables. The level of significance was set at 5%, p <0.05.
The aim of this study is to perform the bone tissue engineering to reconstruct the alveolar bone defect in cleft lip and palate patients using mesenchymal stem cells from deciduous dental pulp associated with a collagen and hydroxyapatite biomaterial (Geistlich Bio-Oss®) through prospective qualitative and quantitative analysis of bone neoformation.
Upper gastrointestinal bleeding (UGIB) is a major cause of morbidity and mortality in patients with portal hypertension secondary to schistosomiasis mansoni. Taking into account the endemic nature of schistosomiasis mansoni in our region and the high morbidity and mortality directly associated with rupture of esophageal varices and UGIB in affected patients, we conducted a prospective randomized trial in patients with schistosomiasis and a history of bleeding esophageal varices. Its purpose was to assess the efficacy of endoscopic treatment alone compared with the efficacy of sclerotherapy preceded by a surgical treatment: Esophagogastric devascularization with splenectomy (EGDS).