Chemotherapy for Myelodysplastic Syndrome (MDS)
At this time, traditional chemotherapy protocols are not effective for treating MDS. High-dose chemotherapy may be used before a stem cell transplant
to rid the body of cancer cells. It may also be used for MDS that has progressed to acute myeloid leukemia
or to relieve symptoms associated with the disease. If chemotherapy is used, it does not offer a cure.
Chemotherapy Drugs and Delivery
There are three combinations of chemotherapy drugs used to treat MDS. These combinations include:
- Cytarabine and
- Cytarabine and
Chemotherapy for MDS is usually given through an IV, but some forms can be injected under the skin. It is delivered in cycles over a set period of time. A medical oncologist will determine how many cycles of chemotherapy are needed and what combination of drugs will work best. It is not unusual for a relapse to occur after treatment. If so, the combination of chemotherapy drugs be changed.
Side Effects and Management
Though the drugs are targeted to cancer cells, they can affect healthy cells as well. The death of cancer cells and impact on healthy cells can cause a range of side effects. A medical oncologist will work to find the best drug combination and dosage to have the most impact on the cancer cells and minimal side effects on healthy tissue. Side effects or complications from chemotherapy may include:
- Low red or white blood cell, or platelet counts
- Nausea or vomiting
- Loss of appetite
- Hair loss
- Mouth sores
- In high doses, brain dysfunction
A variety of treatments are available to help manage side effects including medication, lifestyle changes, and alternative treatments. In some cases, the chemotherapy regimen may be adjusted to reduce severe side effects. The earlier the side effects are addressed, the more likely they will be controlled with a minimum of discomfort.
Cytarabine. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T233106/Cytarabine. Updated September 6, 2016. Accessed October 6, 2016.
Myelodysplastic syndrome. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T114054/Myelodysplastic-syndrome-MDS. Updated May 16, 2016. Accessed June 21, 2016.
Myelodysplastic syndromes. American Cancer Society website. Available at: http://www.cancer.org/acs/groups/cid/documents/webcontent/003122-pdf.pdf. Accessed June 30, 2016.
Treatment options for myelodysplastic syndromes. National Cancer Institute website. Available at: http://www.cancer.gov/types/myeloproliferative/patient/myelodysplastic-treatment-pdq#section/%5F49. Updated August 12, 2015. Accessed June 30, 2016.