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: 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 more than one chemotherapy drug with radiation therapy may kill more tumor cells. PURPOSE: Phase I trial to study the effectiveness of combination chemotherapy plus radiation therapy in treating patients with newly diagnosed brain stem glioma.
RATIONALE: Drugs used in chemotherapy use 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 which regimen of combination chemotherapy is most effective in treating advanced colorectal cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of various combination chemotherapy regimens in treating patients who have advanced, recurrent, or metastatic colorectal cancer that cannot be treated with surgery or radiation therapy.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells. PURPOSE: Phase III trial to study the effectiveness of combination chemotherapy in treating children who have Down syndrome and myeloproliferative disorder, acute myelogenous leukemia, or myelodysplastic syndrome.
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 radiation therapy with chemotherapy may kill more tumor cells. PURPOSE: Phase II trial to study the effectiveness of etoposide plus radiation therapy followed by combination chemotherapy in treating children with newly diagnosed advanced medulloblastoma.
RATIONALE: Diagnostic procedures such as thoracoscopy may help to measure a patient's response to previous treatment. PURPOSE: Diagnostic trial to determine the accuracy of thoracoscopy in patients who have stage IIIA non-small cell lung cancer.
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 compare the effectiveness of docetaxel in treating Caucasian and African American patients who have solid tumors.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells. PURPOSE: Phase II trial to study the effectiveness of combination chemotherapy consisting of doxorubicin, cyclophosphamide, and docetaxel in treating women with stage IIIB or stage IV breast cancer.
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. PURPOSE: Phase II trial to study the effectiveness of radiation therapy in treating patients with newly diagnosed brain metastases from kidney cancer, melanoma, or sarcoma.
RATIONALE: Methylphenidate may relieve some of the side effects of chemotherapy in patients with melanoma. It is not known whether receiving methylphenidate is more effective than receiving no further therapy in treating patients with melanoma. PURPOSE: Randomized phase III trial to determine if methylphenidate is more effective than no further therapy for the relief of fatigue and drowsiness in treating patients with melanoma who have received high-dose interferon alfa for 8-24 weeks.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug, and giving them after surgery, may kill more tumor cells. PURPOSE: Phase II trial to study the effectiveness of combination chemotherapy, consisting of paclitaxel and cisplatin, given after surgery in treating patients with cancer of the esophagus or stomach.