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.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. PURPOSE: Phase II trial to study the effectiveness of glufosfamide in treating patients who have recurrent glioblastoma multiforme.
The purpose of this study is to compare the effectiveness of treatment with BMS-232632 to that of efavirenz (EFV) when both are used with zidovudine (ZDV) and lamivudine (3TC).
This 2 arm study will compare the safety and efficacy of oral Xeloda, or 5-fluorouracil in combination with leucovorin, in patients who have undergone surgery for colon cancer. Patients will be randomized to receive either Xeloda 1250mg/m2 po bid on days 1-14 every 21 days, or leucovorin 20mg/m2 iv + 5-FU 425mg/m2 iv daily from day 1 to day 5 every 28 days. The anticipated time on study treatment is 3-12 months, and the target sample size is 500+ individuals.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. It is not yet known whether paclitaxel and carboplatin are more effective with or without BMS-275291 for non-small cell lung cancer. PURPOSE: Randomized phase II/III trial to compare the effectiveness of paclitaxel and carboplatin with or without BMS-275291 in treating patients who have advanced or metastatic non-small cell lung cancer.
The purpose of this study is to compare the safety and effectiveness of 2 forms of stavudine (d4T). One form is taken once a day (extended release) and the other form is taken twice a day (immediate release).
RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Peripheral stem cell transplantation may allow the doctor to give higher doses of chemotherapy drugs and kill more cancer cells. Monoclonal antibodies such as rituximab 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 combination chemotherapy plus peripheral stem cell transplantation is more effective with or without rituximab for non-Hodgkin's lymphoma. PURPOSE: This randomized phase III trial is studying giving combination chemotherapy and peripheral stem cell transplantation together with rituximab to see how well it works compared to combination chemotherapy and peripheral stem cell transplantation alone in treating patients with relapsed non-Hodgkin's lymphoma.
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. It is not yet known whether radiation therapy with chemotherapy is more effective than radiation therapy alone in treating high-risk endometrial cancer. PURPOSE: This randomized phase III trial is studying radiation therapy and chemotherapy to see how well they work compared to radiation therapy alone in treating patients with high-risk endometrial cancer.
RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells and prevent the spread of cancer to the brain. It is not yet known if standard-dose radiation therapy is more effective than high-dose radiation therapy in preventing the spread of limited-stage small cell lung cancer cells to the brain. PURPOSE: This randomized phase III trial is comparing two different regimens of radiation therapy to see how well they work in treating patients with limited-stage small cell lung cancer in complete remission.
The purpose of this study is to see if it is effective to give HIV positive patients recombinant interleukin-2 (rIL-2) in addition to anti-HIV therapy. Patients will be followed over a minimum of 4 years to study the long-term effects of rIL-2 on their HIV disease progression. Anti-HIV therapy has been very successful in treating HIV positive patients and in keeping viral load (level of HIV in the blood) low. However, anti-HIV drugs cannot completely rid the body of the virus, and the immune system is never completely restored in HIV positive patients. Doctors hope that giving patients recombinant interleukin-2 (rIL-2) in addition to their anti-HIV therapy will help improve their immune systems and keep them healthier over a longer period of time. rIL-2 is a hormone naturally produced by the body during an immune response to a microbial infection.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. It is not yet known whether receiving paclitaxel and carboplatin with epirubicin is more effective than paclitaxel and carboplatin alone for ovarian epithelial, fallopian tube, or peritoneal cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of paclitaxel and carboplatin with or without epirubicin in treating patients who have stage IIB, stage III, or stage IV invasive ovarian epithelial, fallopian tube, or peritoneal cancer.