There are about 2656 clinical studies being (or have been) conducted in Puerto Rico. 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: Androgens can stimulate the growth of prostate cancer cells. Drugs such as luteinizing hormone-releasing hormone agonist, flutamide, and bicalutamide may stop the adrenal glands from producing androgens. Drugs used in chemotherapy work in different ways to stop tumor cells from dividing so they stop growing or die. Combining hormone therapy with chemotherapy may kill more tumor cells. It is not yet known whether chemotherapy given at the same time as hormone therapy is more effective than chemotherapy given after hormone therapy in treating prostate cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of chemotherapy given at the same time as hormone therapy with that of chemotherapy given after hormone therapy in treating patients who have prostate cancer.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Radiation therapy uses high-energy x-rays to damage tumor cells. Giving chemotherapy together with radiation therapy may kill more tumor cells. PURPOSE: This phase II trial is studying how well giving chemotherapy together with radiation therapy after surgery followed by chemotherapy alone works in children with newly diagnosed astrocytoma, glioblastoma multiforme, gliosarcoma, or diffuse intrinsic pontine glioma.
This study will compare 2 treatments in the way they affect cholesterol levels and the amount of HIV in the blood.
The purpose of this study is to collect and study clinical and laboratory information about a pregnant or new mother and her medical care that will increase our knowledge of the best care for HIV-infected pregnant women and their children. The rate of transmission of HIV from mothers to their infants has gone down. Specific U.S. Public Health Service guidelines recommend that HIV-infected pregnant women be treated with anti-HIV therapies; but the effectiveness of treatment and safety for the mother and her infant have not been fully examined. This study will monitor the health of women and their infants while they receive anti-HIV therapy. Also, this study will provide information that may be used for future studies.
The purpose of this study is to compare two ways of using anti-HIV drugs to help health care providers and patients decide how to best use anti-HIV treatments over many years. Many health care providers now treat patients with daily drugs to keep the viral load as low as possible. This approach helps patients with CD4 counts less than 200-250 cells/mm3 live longer without serious diseases. But it is not known if this is the best way to treat patients with higher CD4 counts. There is information suggesting that these patients may be able to wait to use anti-HIV drugs while CD4 counts are above 250 cells/mm3. Because this study will be carried out over several years, it will provide information on the long-term advantages and disadvantages of these two treatment strategies.
Because people infected with HIV strains that are resistant to anti-HIV drugs have fewer effective treatment options, selecting an effective anti-HIV drug combination is difficult. A combination of protease inhibitors (PIs), when added to a patient's current anti-HIV therapy, may decrease viral load and increase drug activity. Tests that measure drug levels in the blood and tests to evaluate the drug resistance of HIV may also be helpful in choosing the best anti-HIV drug combination for a patient. This study will determine whether using these tests to choose a drug combination and adding PIs to that combination will improve the patient's response to anti-HIV therapy.
This randomized phase III trial is studying different chemotherapy regimens given with or without radiation therapy to compare how well they work in treating children with newly diagnosed Hodgkin's disease. Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Giving the drugs in different combinations may kill more cancer cells. Radiation therapy uses high-energy x-rays to damage cancer cells. It is not yet known if chemotherapy is more effective with or without additional chemotherapy and/or radiation therapy in treating Hodgkin's disease.
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 if gemcitabine is more effective with or without exatecan mesylate in treating pancreatic cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of gemcitabine alone to that of gemcitabine and exatecan mesylate in treating patients who have locally advanced or metastatic pancreatic cancer.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Radiation therapy uses high-energy x-rays to damage tumor cells. Combining surgery with chemotherapy and radiation therapy may kill more tumor cells and prevent recurrence of the cancer. PURPOSE: Phase II trial to study the effectiveness of surgery with or without chemotherapy and radiation therapy in treating patients who have stage I rectal cancer.
RATIONALE: Drugs used in chemotherapy, such as docetaxel, work in different ways to stop cancer cells from dividing so they stop growing or die. PURPOSE: Phase II trial to study the effectiveness of docetaxel in treating children who have relapsed or refractory acute lymphoblastic or acute myeloid leukemia.