Chemotherapy uses drugs to kill cancer cells. Chemotherapy may be taken by pill, or it may be put into the body by a needle in the vein or muscle. Chemotherapy is called a systemic treatment because the drug enters the bloodstream, travels through the body, and can kill cancer cells outside the stomach. Treatment given after surgery when no cancer cells can be seen is called adjuvant therapy. Adjuvant therapy for cancer of the stomach is being tested in clinical trials.
Biological therapy tries to get the body to fight cancer.
It uses materials made by the body or made in a laboratory to boost, direct, or restore the body's natural defenses against disease. Treatment by stage Treatment of cancer of the stomach depends on the stage of the disease, the part of the stomach where the cancer is, and the patient's general health. Standard treatment may be considered because of its effectiveness in patients in past studies, or participation in a clinical trial may be considered. Many patients with cancer of the stomach are not cured with standard therapy and some standard treatments may have more side effects than are desired. Clinical trials are ongoing in most parts of the country for most stages of cancer of the stomach.