Many types of treatment and combinations of treatment can be used for multiple myeloma. Each treatment has its own goals. Here's an overview of each type of treatment:
Active surveillance
The goal of active surveillance is to watch the myeloma but not treat it right away. This may be done when the cancer is growing slowly and won't likely cause problems for a long time. (This is called smoldering myeloma.)
This approach is often a good choice for myeloma that's not causing any symptoms. Or it might be suggested if you don't have damage to your kidneys or bones and you have little or no anemia (low red blood cell counts).
Active surveillance means you'll see your doctor every few months for checkups. These may include blood and urine tests. You may also get imaging tests, like X-rays. If the cancer starts growing more quickly, you can start active treatment.
Chemotherapy and other medicines
This is the use of medicines that kill cancer cells. Different kinds of medicines can be used to treat myeloma. The goal is to control the cancer for as long as possible.
Immunotherapy
This treatment "turns on" the immune system so it fights the cancer. Or it uses manmade immune proteins called monoclonal antibodies to attack the cancer cells. Different types of immunotherapy can be used. An example of a type of immunotherapy used to treat multiple myeloma is called an immunomodulator.
Radiation therapy
The goal of this treatment is to ease symptoms like bone pain, most often if medicine treatment isn't working.
Radiation can also be used as the main treatment for a single collection of myeloma cells, called a plasmacytoma.
Stem cell transplant
Your doctor will check if a stem cell transplant is an appropriate treatment choice for you. The goal of a stem cell transplant is to kill as many of the cancer cells as possible to help you live longer. You'll get high doses of chemotherapy. The chemo kills almost all of the cells in your bone marrow, including the cancer cells. But it also kills normal bone marrow cells. This can lead to life-threatening side effects. To get around this, you get replacement blood-forming stem cells after treatment.
Most often, the stem cells are taken from your own blood or bone marrow (and frozen) before high-dose chemotherapy treatment. This is known as an autologous stem cell transplant. Less often, the stem cells might come from a donor, such as a close relative. This is called an allogeneic stem cell transplant. After treatment, the stem cells are put into your body in a process that's like getting a blood transfusion. Over time, these stem cells rebuild your bone marrow.
Supportive care
Your doctor may suggest treatments that help ease your symptoms but don't treat the cancer. These can sometimes be used along with other treatments. Or your doctor may suggest supportive care if they believe that treatments are more likely to do you more harm than good.
Examples of supportive care include antibiotics to treat or help prevent infection and a blood thinner to help prevent blood clots. Talk to your doctor about the goal of each treatment you get.
Targeted therapy
These medicines target certain genes and proteins that help myeloma cells grow and survive. They can slow the growth and spread of multiple myeloma with limited harm to healthy cells. Your cancer cells will be tested to see if they have the changes that these medicines target. If so, targeted therapy may be helpful. An example of a type of targeted therapy used for multiple myeloma is called a proteasome inhibitor.