There are about 3194 clinical studies being (or have been) conducted in Portugal. 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.
To compare treatment with oxaliplatin/5-FU/leucovorin plus vatalanib versus oxaliplatin/5-FU/leucovorin plus placebo in patients with colorectal cancer that has spread to other organs and are seeking first chemotherapy treatment
The purpose of this study is to compare treatment with oxaliplatin/5-FU/leucovorin plus vatalanib versus oxaliplatin/5-FU/leucovorin plus placebo in patients with colorectal cancer that has spread to other organs and whose disease has worsened after treatment with irinotecan.
This 4-year study will compare how safe and effective an oral investigational medicine is (compared to placebo) in preventing the development of prostate cancer in men that are defined by the study entrance criteria as being at an increased risk for prostate cancer. Study visits to the clinic will occur every 6 months for up to 4 years (10 clinic visits), and a prostate biopsy will be performed at 2 and 4 years of treatment.
The purpose of this study is to determine whether extracorporeal photoimmune therapy with UVADEX (ECP) added to standard therapy is effective in the treatment of chronic graft-versus-host disease (GvHD).
The purpose of this study is to determine whether Extracorporeal Photopheresis with UVADEX (ECP) prior to bone marrow or peripheral blood stem cell transplantation is effective in the prevention of Graft-versus-Host Disease (GvHD).
RATIONALE: Drugs used in chemotherapy work in different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells. It is not yet known whether doxorubicin and cisplatin are more effective with or without paclitaxel in treating endometrial cancer. PURPOSE: Randomized phase II trial to compare the effectiveness of combining doxorubicin and cisplatin with or without paclitaxel in treating patients who have locally advanced, metastatic, and/or relapsed endometrial cancer.
RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Monoclonal antibodies can locate cancer cells and either kill them or deliver cancer-killing substances to them without harming normal cells. It is not yet known if combining combination chemotherapy with monoclonal antibody therapy will kill more cancer cells. PURPOSE: Randomized phase III trial to determine the effectiveness of combination chemotherapy with or without gemtuzumab ozogamicin in treating patients who have acute myeloid leukemia.
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 collect information on how effective and how well tolerated an oral investigational drug is compared to a standard intravenous drug in patients with pretreated, advanced non-small lung cancer (NSCLC).
A 48-week study to investigate the safety and effectiveness of a new compact formulation of two already FDA-approved anti-HIV drugs in subjects who have already been receiving treatment for their HIV infection.