There are about 13446 clinical studies being (or have been) conducted in Belgium. 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: Estrogen can stimulate the growth of breast cancer cells. Hormone therapy using triptorelin, exemestane, and tamoxifen may fight breast cancer by blocking the use of estrogen. It is not yet known whether giving triptorelin together with exemestane is more effective than triptorelin and tamoxifen in treating hormone-responsive breast cancer. PURPOSE: This randomized phase III trial is studying triptorelin and exemestane to see how well they work compared to triptorelin and tamoxifen in treating premenopausal women with hormone-responsive breast cancer.
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. Giving radiation therapy in different ways with combination chemotherapy may kill any remaining tumor cells following surgery. It is not yet known which radiation therapy regimen combined with combination chemotherapy is more effective in treating medulloblastoma. PURPOSE: Randomized phase III trial to compare different radiation therapy regimens plus combination chemotherapy in treating children who have undergone surgery for medulloblastoma.
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 which schedule of chemotherapy is most effective in treating colon cancer. PURPOSE: Randomized phase III trial to compare different schedules of chemotherapy using carboplatin with fluorouracil and leucovorin in treating patients who have stage IIB or stage III colon cancer.
RATIONALE: Monoclonal antibodies such as trastuzumab can locate tumor cells and either kill them or deliver tumor-killing substances to them without harming normal cells. It is not yet known whether trastuzumab is effective in treating primary breast cancer in women who have completed adjuvant chemotherapy. PURPOSE: This randomized phase III trial is studying two different regimens of trastuzumab and observation only to compare how well they work in treating women with breast cancer.
RATIONALE: Decitabine may help myelodysplasia cells develop into normal stem cells. It is not yet known if decitabine is more effective than standard supportive care in treating myelodysplastic syndrome. PURPOSE: Randomized phase III trial to compare the effectiveness of low-dose decitabine with that of standard supportive care in treating older patients who have myelodysplastic syndrome.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Giving chemotherapy drugs before surgery may shrink the tumor so that it can be removed during surgery. Radiation therapy uses high-energy x-rays to kill tumor cells. Combining radiation therapy with chemotherapy may kill more tumor cells. It is not yet known whether chemotherapy is more effective followed by surgery or combined with radiation therapy in treating cervical cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of chemotherapy followed by radical hysterectomy with that of chemotherapy plus radiation therapy in treating patients who have stage IB or stage II cervical cancer.
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 any tumor cells remaining after surgery. It is not yet known which combination chemotherapy regimen is more effective in treating resected stage I or stage II breast cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of different combination chemotherapy regimens in treating women who have resected stage I or stage II breast cancer.
RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Thalidomide may stop the growth of cancer cells by stopping blood flow to the cancer. Peripheral blood stem cell transplant using stem cells from the patient or a donor may be able to replace immune cells that were destroyed by chemotherapy used to kill cancer cells. The donated stem cells may also help destroy any remaining cancer cells (graft-versus-tumor effect). It is not yet known whether chemotherapy followed by peripheral blood stem cell transplant is more effective with or without thalidomide in treating multiple myeloma. PURPOSE: This randomized phase III trial is studying giving combination chemotherapy with thalidomide to see how well it works compared with giving combination chemotherapy without thalidomide in treating patients with multiple myeloma.
RATIONALE: Imatinib mesylate may stop the growth of cancer cells by blocking the enzymes necessary for cancer cell growth. Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Combining imatinib mesylate and chemotherapy may kill more cancer cells. PURPOSE: Phase I/II trial to study the effectiveness of imatinib mesylate plus cytarabine in treating patients who have newly diagnosed chronic myeloid leukemia.
RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Radiation therapy uses high-energy x-rays to damage cancer cells. It is not yet known if chlorambucil is more effective than radiation therapy in treating follicular lymphoma. PURPOSE: Randomized phase III trial to compare the effectiveness of chlorambucil with that of radiation therapy in treating patients who have stage III or stage IV follicular lymphoma that has not been previously treated.