Malignant Mesothelioma Treatment

Different types of treatments are available for patients with malignant mesothelioma. Some treatments are standard (the currently used treatment), and some are being tested in clinical trials. A treatment clinical trial is a research study meant to help improve current treatments or obtain information on new treatments for patients with cancer. When clinical trials show that a new treatment is better than the standard treatment, the new treatment may become the standard treatment. Patients may want to think about taking part in a clinical trial. Some clinical trials are open only to patients who have not started treatment.
Treatment may include surgery, radiation and chemotherapy. Supportive treatments can relieve symptoms.

Surgery

The following surgical treatments may be used for malignant mesothelioma in the chest:

  • Wide local excision: Surgery to remove the cancer and some of the healthy tissue around it.
  • Pleurectomy and decortication: Surgery to remove part of the covering of the lungs and lining of the chest and part of the outside surface of the lungs.
  • Extrapleural pneumonectomy: Surgery to remove one whole lung and part of the lining of the chest, the diaphragm, and the lining of the sac around the heart.
  • Pleurodesis: A surgical procedure that uses chemicals or drugs to make a scar in the space between the layers of the pleura. Fluid is first drained from the space using a catheter or chest tube and the chemical or drug is put into the space. The scarring stops the build-up of fluid in the pleural cavity.

After the doctor removes all the cancer that can be seen at the time of the surgery, some patients may be given chemotherapy or radiation therapy after surgery to kill any cancer cells that are left. Treatment given after the surgery, to lower the risk that the cancer will come back, is called adjuvant therapy.

Radiation therapy

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. External radiation therapy is used to treat malignant mesothelioma, and may also be used as palliative therapy to relieve symptoms and improve quality of life.

Chemotherapy

Chemotherapy is a cancer treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. When chemotherapy is taken by mouth or injected into a vein or muscle, the drugs enter the bloodstream and can reach cancer cells throughout the body (systemic chemotherapy). When chemotherapy is placed directly into the cerebrospinal fluid, an organ, or a body cavity such as the chest or peritoneum, the drugs mainly affect cancer cells in those areas (regional chemotherapy). Combination chemotherapy is the use of more than one anticancer drug.

Hyperthermic intraperitoneal chemotherapy is used in the treatment of mesothelioma that has spread to the peritoneum (tissue that lines the abdomen and covers most of the organs in the abdomen). After the surgeon removes all the cancer that can be seen, a solution containing anticancer drugs is heated and pumped into and out of the abdomen to kill cancer cells that remain. Heating the anticancer drugs may kill more cancer cells.

The way the chemotherapy is given depends on the type and stage of the cancer being treated.

See Drugs Approved for Malignant Mesothelioma for more information.

Targeted therapy

Targeted therapy is a type of treatment that uses drugs or other substances to attack specific cancer cells. Targeted therapies usually cause less harm to normal cells than chemotherapy or radiation therapy do.

Monoclonal antibody therapy is a type of targeted therapy 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.

Bevacizumab is a monoclonal antibody used to treat advanced malignant mesothelioma. It binds to a protein called vascular endothelial growth factor (VEGF). This may prevent the growth of new blood vessels that tumors need to grow. Other monoclonal antibodies are being studied in malignant mesothelioma.

Kinase inhibitors are a type of targeted therapy being studied in the treatment of malignant mesothelioma. Kinase inhibitors are targeted therapy drugs that block signals needed for tumors to grow.

read also how cells are wired to survive radiation therapy

Mesothelioma Life Expectancy

Average life expectancy for mesothelioma patients is 12 to 21 months. How long a patient lives depends on several factors including age, stage of the disease, and overall health. Approximately 40 percent of patients live past one year; 9 percent live longer than 5 years
maligant mesothelioma life expectation

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