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.
Background: The literature indicates that, in relation to motor learning, healthy subjects benefit more from random practice than from constant practice. However, this effect is not well known in post-stroke patients. Objective: The goal of this study was to investigate the effects of practice structure on motor learning in post-stroke patients. Methods: Participants included an experimental group (EG) of post-stroke patients: 17 males and females; and a control group (CG) of healthy individuals: 17 males and females. At the acquisition phase, all participants performed 30 trials of a coincident timing task. Nine individuals from each group practiced constantly (C) at a stimulus propagation speed of 3 mph, and eight from each group practiced randomly (R) at speeds of 2, 3, and 5 mph. Subsequent phases included: 1) transfer, 2) retention after 15 minutes, and 3) retention after 3 days. Each of these phases included 20 trials: 10 at a speed of 1 mph, and 10 at a speed of 4 mph. Intra- and inter-group comparisons were made employing an alpha level of 0.05 (5%).
The purpose of this placebo-controlled study is to determine if drotrecogin alfa (activated) treatment provides significant mortality reduction improvement in patients with septic shock compared with placebo treatment in patients receiving the current standard of care for septic shock. This study will also assess the effectiveness of drotrecogin alfa (activated) in reducing 28-day mortality in patients with septic shock and concomitant severe protein C deficiency.
Human papillomavirus (HPV) is the most common sexually transmitted disease in the world. HPV infection can cause genital warts and certain cervical problems, including cervical cancer. HPV infection may be more severe and harder to treat in HIV-infected people. The purpose of this study was to determine whether the quadrivalent HPV vaccine is safe, tolerable, and effective in producing antibodies to HPV in HIV-infected women.
The primary objective of this study is to determine whether S-1 increases overall survival when compared to 5-Fluorouracil (5-FU) in patients with metastatic pancreatic cancer previously treated with a gemcitabine-based therapy. The secondary objectives are to compare: progression free survival, overall response rate, clinical benefit and improvement in tumor related symptoms and also to assess overall safety and pharmacokinetics of S-1.
The patients will receive either Pasireotide LAR or Octreotide LAR for one year of treatment. The objective of this study is to compare the proportion of patients with a reduction of mean GH level to <2.5 µg/L and the normalization of IGF-1 to within normal limits (age and sex related) between the two treatment groups (pasireotide LAR and octreotide LAR) at 12 months. Following one year of treatment patients may proceed into the study extension. Patients who did not respond to the treatment they were randomized to (based on month 12 assessment results) will be switched to the other treatment arm at month 13.
The trial is designed to assess the long term subjective well-being in schizophrenic outpatients treated with quetiapine XR (extended release) or oral risperidone at flexible dose in a naturalistic setting over a period of one year. Secondary outcome measures have been selected for helping in the differentiation of the compared atypical antipsychotics. The primary objective of this study is to demonstrate the non-inferiority of quetiapine XR to risperidone assessed at month 6 in terms of responder rate using the self-report instrument SWN-K
The hypothesis of this trial is that the therapeutic activity and safety of oral miltefosine in Brazilian patients with cutaneous leishmaniasis is similar or superior to the intravenous standard treatment (meglumine antimoniate - Glucantime®).
The goals of control status of asthma have been changed with the improvement of its management as a chronic disease; many steps should be taken to achieve asthma control as defined by the GINA/NIH guidelines. There are good results with single variables, but overall asthma control should be addressed in different ways. Most traditional clinical studies provide an incomplete assessment of disease control, despite good clinical practice. The association of inhaled corticosteroid (IC) and long-action beta 2 agonist (LABA) has already showed their efficacy to reduce asthma symptoms, exacerbations and cost for moderate and severe asthma patients as well as the improvement in their quality of life. On the other hand, even with the use of first line maintenance medication, as recommended by guidelines, some asthmatic patients fail in obtaining a total control of the disease. This lack of efficacy, led us to hypothesize, that these patients who fail in response, would present chronic and fixed airway obstruction as a consequence of persistent inflammation and airway remodeling. This study has the purpose of looking for an adequate composite measure to provide an indicator of overall asthma status more accurately and meaningfully as reflect of treatment effectiveness and disease control. For this, we will test by a randomized control trial if an additional oral corticosteroid treatment could modify spirometric and plethysmography values, nasal and low airway cytology and HRCT (to evaluate small airway) in regularly treated stable asthma patients who have a positive bronchodilator response.
Determine whether the addition of CP- 751,871 in combination with paclitaxel plus carboplatin prolongs survival in patients with locally advanced (Stage IIIB with pleural effusion) or metastatic (Stage IV or recurrent) NSCLC of non adenocarcinoma histology.
Sleep disturbances are of great relevance within the context of public health as they affect a sizable portion of the population with far reaching consequences. Many automobile and labor accidents as well as poor school and work performance can be traced to sleep disturbances, which are also linked to cardiovascular disease, metabolic syndrome, and psycho-cognitive alterations. OBJECTIVES: 1. Establish the epidemiologic profile of sleep disturbances among the adult population of the city of Sao Paulo in 2007; 2. Investigate associations between sleep patterns and disturbances in that population, taking into account the following variables: social-demographic status, anthropometrics, clinical, activity/rest cycle, eating and physical activity habits, mood disturbances, sexual dysfunction in males, alcoholism, drug addiction, genetic markers, biochemical, hematological, endocrine, immunologic and inflammatory indicators; 3. assess the compatibility of the results collected in the current study with those of epidemiologic sleep investigations of said city carried out in 1987 and 1995 with the aim of determining the secular sleep disturbance trend. METHODS: The two-stage cluster randomized sample included 1100 individuals of the city of Sao Paulo, representing the population proportionally to gender, age groups and social classes. Data were amassed as follows: 1. the application of home and institution questionnaires; 2. description of the sleep patterns and disturbances through polysomnography and actigraphy, performed at the Sleep Institute; 3. collection of peripheral blood for biochemical, hematologic, endocrine and genetic assays. STATISTICS: Subsequent to double typing (inputting) and analysis of data consistency, descriptive and analytical statistical assessments will be performed with the aim of describing patterns of sleep disturbances associated to the explanatory variables under investigation. In the light of bi-varied analysis, predictive/explanatory multivaried models were adjusted.