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Treating Hairy Cell Leukemia (HCL)

Hairy cell leukemia (HCL) tends to grow slowly. People with HCL who aren't having symptoms often don't need to be treated right away, but they do need to be watched carefully. Doctor visits are done every few months to check for signs  the HCL is growing and to see if it's causing any problems (like low blood counts, fatigue, or an enlarged spleen). Some people with HCL live for many years without having symptoms or needing treatment.

When does hairy cell leukemia (HCL) need to be treated?

Treatment may be advised for people with HCL if they have low blood cell counts, recurrent infections, an enlarged spleen or lymph nodes, or other bothersome symptoms.

Treatment doesn't cure HCL, but it can help with symptoms, stop the HCL from progressing, and help people live longer.

Which treatments are used for hairy cell leukemia (HCL)?

The first treatment for HCL is most often chemotherapy (chemo), with either cladribine (2-CdA) or pentostatin. Sometimes the monoclonal antibody rituximab is given after the chemo.

Most often HCL responds well to these drugs, and the responses often last for many years.

If the leukemia comes back at some point, it can often be treated with the same drug again, especially if the HCL stayed in remission for a long time (typically at least 2 years). If one chemo drug doesn't work, another can be tried.

In rare cases where HCL doesn't respond to chemo, or if the response to treatment doesn't last for long, other types of medicines might be tried. For example, targeted drugs known as BRAF inhibitors, such as vemurafenib (sometimes with rituximab) or dabrafenib (plus trametinib) might be options. BTK inhibitors might also be an option, as might rituximab alone or peginterferon-alfa, a type of immunotherapy.

If a person is uncomfortable because of an enlarged spleen, surgery to remove the spleen (splenectomy) can often help relieve pain.

Treatment of other problems caused by hairy cell leukemia (HCL)

Like chronic lymphocytic leukemia (CLL), HCL can cause low blood counts and infections. Treatment of these problems is discussed in Supportive or Palliative Care for Chronic Lymphocytic Leukemia.

The P站视频 medical and editorial content team

Our team is made up of doctors and oncology certified nurses with deep knowledge of cancer care as well as editors and translators with extensive experience in medical writing.

 

National Cancer Institute. Hairy Cell Leukemia Treatment (PDQ?)–Health Professional Version. 2024. Accessed at https://www.cancer.gov/types/leukemia/hp/hairy-cell-treatment-pdq on June 20, 2024.

National Comprehensive Cancer Network, Clinical Practice Guidelines in Oncology (NCCN Guidelines?): Hairy Cell Leukemia. Version 2.2024. Accessed at https://www.nccn.org on June 20, 2024.

Tallman MS. Treatment of hairy cell leukemia. UpToDate. 2024. Accessed at https://www.uptodate.com/contents/treatment-of-hairy-cell-leukemia on June 20, 2024.

 

Last Revised: July 1, 2024

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