Immunotherapy is a type of treatment that affects the immune system. It can boost your body's immune system. Or it uses synthetic versions of normal parts of the immune system to fight cancer. It’s also called biological therapy. The immune system fights infection by killing germs. And in the same way, it can also destroy cancer cells. The immunotherapy medicine most commonly used to fight CML is called interferon.
Immunotherapy is no longer the first treatment choice for CML. This is because targeted therapy works so well for CML.
Still, interferon may be used if your CML is not responding to targeted medicines. This medicine may help kill leukemia cells or help keep them under control. The goal is to destroy as many leukemia cells as possible.
The treatment is not as useful for CML in the accelerated or blast phase. When it is used, remission doesn’t last as long. Remission is when there are no more signs of the disease.
You'll most likely get a daily injection of interferon under your skin. You can get this as an outpatient at a hospital, clinic, or healthcare provider's office. Or you may learn how to give it to yourself at home.
If you take interferon, you may need it for a long time. It's common to take it for several years, as long as it is working and the side effects aren't too severe.
Side effects of interferon can include:
Problems with thinking
Low levels of blood cells
Talk with your healthcare team about ways to ease these side effects. Changing your dose of interferon may help. Some people may need to stop treatment because of side effects. But with proper management, most people can tolerate this treatment. Side effects usually go away shortly after the treatment ends.
It's important to know which medicines you're taking. Write down your medicines. Ask your healthcare team how they work and what side effects they might have.
Talk with your healthcare providers about what signs to watch out for and when you should call your healthcare team. Make sure you know what number to call with questions, even on evenings and weekends.
It may be helpful to keep a diary of your side effects. Write down any physical, thinking, and emotional changes. A written list will make it easier for you to remember your questions when you go to your appointments. It will also make it easier for you to work with your healthcare team to make a plan to manage your side effects.