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.
RATIONALE: - Atherothrombosis is a progressive and generalized vascular disease resulting in events leading to myocardial infarction (heart attack), stroke, and vascular death. - In patients at risk for this disease, it is characterized by an unpredictable, sudden disruption of atherosclerotic plaques, which may lead to total occlusion of artery due to formation of a clot. The use of aspirin (blood thinner agent) for reducing those major ischemic events is either indicated, or recommended by international guidelines. However, aspirin fails to prevent a high percentage of such life-threatening events. Therefore, more effective blood thinning therapy may provide additional clinical benefit to such patients. - The results of the CURE trial in patients with unstable angina demonstrate the additional benefit of long-term treatment (up to one year) with clopidogrel, (a blood thinner agent), when administered in combination with standard therapy including aspirin. The purpose of CHARISMA is to investigate whether a similar clinical benefit of clopidogrel may apply to a broad population of high-risk patients receiving low-dose aspirin therapy. Such population includes patients with previous cardiovascular, neurovascular or peripheral arterial manifestations of atherothrombosis and patients with combinations of recognized risk factors for atherosclerosis. OBJECTIVES: - To assess the efficacy of clopidogrel 75 mg once-daily by comparison with a placebo, in preventing cardiovascular morbidity/mortality. The study will compare the efficacy of the two regimens in preventing the occurrence of major cardiovascular complications (stroke, heart attack, cardiovascular death) in high-risk patients who are otherwise receiving low-dose aspirin therapy (75-162 mg daily). - To evaluate the safety of clopidogrel in this population, and more specifically the incidence of fatal or severe bleeding (as per GUSTO definition), in order to estimate the global benefit of clopidogrel in this patient population.
The purpose of this study is to determine the safety and efficacy of Pegasys + placebo + lamivudine versus lamivudine alone in patients with lamivudine versus lamivudine alone in patients with hepatitis B antigen CHB.
This study will compare the efficacy and safety of different treatment regimens of oral Bonviva tablets in women with post-menopausal osteoporosis. Patients will also receive daily supplementation with vitamin D and calcium. The anticipated time of study treatment is 2+ years, and the target sample size is 500+ individuals.
Severe sepsis is defined as a systemic inflammatory response syndrome that results from infection and is associated with acute organ dysfunction. It usually results from bacterial infections, but it may occur in response to other pathogens, such as fungi, viruses, and parasites.
This study will gather and compare data about the effectiveness and safety of two different treatments for extensive Small Cell Lung Cancer (SCLC) in patients who have not received previous chemotherapy. One treatment will use an investigational drug in combination with an FDA approved chemotherapy. The other treatment will use a combination of two FDA approved chemotherapy drugs.
IMPAACT P1026s is a Phase IV prospective clinical study to evaluate the pharmacokinetics (PKs) of antiretroviral (ARV) and tuberculosis (TB) medications in pregnant women and their infants. (Pharmacokinetics are the various interactions between a drug and the body.) This study also evaluated the PKs of certain ARVs in postpartum women before and after starting hormonal contraceptives. The PKs of these drugs were evaluated by measuring the amount of medicine present in blood and/or vaginal secretions.
A 12-week trial consisting of 5 visits (6 if follow up is needed) to find out how effective and safe three different doses of meloxicam are compared with placebo in Rheumatoid Arthritis. Patient will take one dose of study medication daily.
The purpose of this study is to determine if OSI-774 will improve overall survival when combined with a standard dose of the chemotherapy drug gemcitabine, to individuals with pancreatic cancer.
The purpose of this study is to study amprenavir/ritonavir, saquinavir/ritonavir or efavirenz in HIV-infected patients following failure with Kaletra (ABT-378/ritonavir) as their first protease inhibitor based HAART.
The purpose of this study is to study the safety and efficacy of Amprenavir/ritonavir or saquinavir/ritonavir in HIV infected patients that have failed Kaletra as their second protease inhibitor based HAART.