There are about 9403 clinical studies being (or have been) conducted in Switzerland. 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: Radiation therapy uses high-energy x-rays to damage tumor cells. Adjuvant radiation therapy may kill any remaining tumor cells following surgery or radiosurgery for brain metastases. PURPOSE: This randomized phase III trial is studying surgery or radiosurgery alone to see how well it works compared to surgery or radiosurgery and whole-brain radiation therapy in treating brain metastases in patients with solid tumors.
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. Combining radiation therapy with chemotherapy may kill more tumor cells. It is not yet known which chemotherapy regimen is more effective when combined with radiation therapy for treating medulloblastoma. PURPOSE: Randomized phase III trial to compare two combination chemotherapy treatments plus radiation therapy in treating children with newly diagnosed medulloblastoma.
RATIONALE: Radiation therapy may kill any tumor cells remaining after surgery. PURPOSE: This randomized phase III trial is studying radiation therapy to see how well it works compared to no further therapy in treating women with stage I, stage II, or stage III breast cancer that has been surgically removed.
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells, and may be an effective treatment for anaplastic oligodendroglioma. Combining combination chemotherapy with radiation therapy may kill more tumor cells. PURPOSE: Randomized phase III trial to compare radiation therapy with and without combination chemotherapy in patients with resected anaplastic oligodendroglioma.
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 chemotherapy with radiation therapy may kill more tumor cells and allow doctors to preserve the part of the body where the cancer started. It is not yet known which regimen of cisplatin and fluorouracil combined with radiation therapy is more effective in treating resectable cancer of the hypopharynx or larynx. PURPOSE: Randomized phase III trial to compare the effectiveness of two regimens of cisplatin and fluorouracil combined with radiation therapy in preserving the larynx in patients who have resectable cancer of the hypopharynx or larynx.
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 combination chemotherapy given after surgery is more effective than surgery alone for non-small cell lung cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of combination chemotherapy following surgery with that of surgery alone in treating patients who have stage I, stage II, or 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. 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 II trial to study the effectiveness of combination chemotherapy, surgery, and radiation therapy in treating children who have advanced soft tissue sarcoma.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining chemotherapy with peripheral stem cell transplantation may allow the doctor to give higher doses of chemotherapy drugs and kill more tumor cells. It is not yet known if high-dose combination chemotherapy plus peripheral stem cell transplantation is more effective than standard combination chemotherapy for breast cancer. PURPOSE: Randomized phase III trial to compare high-dose combination chemotherapy plus peripheral stem cell transplantation with standard combination chemotherapy in treating women with stage II or stage III breast cancer.
RATIONALE: Interferon alfa may interfere with the growth of cancer cells. It is not known whether giving high-dose or low-dose interferon alfa is more effective than no further therapy in treating patients with stage III melanoma. PURPOSE: Randomized phase III trial to compare the effectiveness of high- or low-dose interferon alfa with that of no further therapy following surgery in treating patients who have stage III melanoma.
RATIONALE: Drugs used in chemotherapy work in different ways to stop cancer cells from dividing so they stop growing or die. Combining more than one chemotherapy drug and giving them as induction intensification may kill more cancer cells. PURPOSE: This phase II trial is studying how well induction intensification works in treating infants with newly diagnosed acute lymphocytic leukemia.