In the treatment of osteosarcoma and malignant fibrous histiocytosis of bone, chemotherapy is usually given before and after surgery to remove the primary tumor.
See Drugs Approved for Bone Cancer for more information.
Radiation therapy is a cancer treatment that uses high-energy x-rays or other types of radiation to kill cancer cells or keep them from growing. There are two types of radiation therapy. External radiation therapy uses a machine outside the body to send radiation toward the cancer. Internal radiation therapy uses a radioactive substance sealed in needles, seeds, wires, or catheters that are placed directly into or near the cancer. The way the radiation therapy is given depends on the type and stage of the cancer being treated.
Osteosarcoma and MFH cells are not killed easily by radiation therapy. It may be used when a small amount of cancer is left after surgery or used together with other treatments.
Samarium is a radioactive drug that targets areas where bone cells are growing, such as tumor cells in bone. It helps relieve pain caused by cancer in the bone and it also kills blood cells in the bone marrow. It also is used to treat osteosarcoma that has come back after treatment in a different bone.
Treatment with samarium may be followed by stem cell transplant. Before treatment with samarium, stem cells (immature blood cells) are removed from the blood or bone marrow of the patient and are frozen and stored. After treatment with samarium is complete, the stored stem cells are thawed and given back to the patient through an infusion. These reinfused stem cells grow into (and restore) the body's blood cells.
New types of treatment are being tested in clinical trials.
This summary section describes treatments that are being studied in clinical trials. It may not mention every new treatment being studied. Information about ongoing clinical trials is available from the NCI Web site.
Targeted therapy is a treatment that uses drugs or other substances to find and attack specific cancer cells without harming normal cells. Several types of targeted therapy are being studied for osteosarcoma.
- Angiogenesis inhibitor therapy: Drugs that stop cells from dividing and prevent the growth of new blood vessels that tumors need to grow.
- Viral therapy: Use of a virus that has been changed in the laboratory to find and destroy cancer cells without harming healthy cells.
- Monoclonal antibody therapy: A cancer treatment that uses antibodies made in the laboratory, from a single type of immune system cell. These antibodies can identify substances on cancer cells or normal substances that may help cancer cells grow. The antibodies attach to the substances and kill the cancer cells, block their growth, or keep them from spreading. Monoclonal antibodies are given by infusion. They may be used alone or to carry drugs, toxins, or radioactive material directly to cancer cells.
- Kinase inhibitor therapy: A drug that blocks a protein needed for cancer cells to divide.