Leukemia Home > Nipent Uses

A healthcare provider may prescribe Nipent for use in adults who have a certain type of cancer called hairy cell leukemia. This chemotherapy drug works to slow down the progression of this disease by preventing the cancer cells from growing and multiplying. There are also some off-label, or unapproved, uses for this medication, such as treating acute lymphocytic leukemia and certain conditions in children.

What Is Nipent Used For?

Nipent® (pentostatin) is a prescription medication approved to treat hairy cell leukemia in adults. Hairy cell leukemia is an uncommon type of cancer that affects a certain type of white blood cell known as B-cells. These blood cells help the body fight infections.
In hairy cell leukemia, the bone marrow makes too many abnormal B-cells. These abnormal cells have hair-like projections that can be observed under a microscope. This is what gives the condition its name.
The abnormal B-cells in hairy cell leukemia, also called leukemia cells, do not function properly. As they increase in number, they may crowd out normal, healthy blood cells. As a result, the number of normal and healthy red blood cells, white blood cells, and platelets decreases. This can cause infections, anemia, and bleeding problems. In addition, some of the leukemia cells may collect in the spleen and liver and cause these organs to swell.
Hairy cell leukemia is more likely to occur in men than women, and most often occurs in middle or older age. It is considered a chronic leukemia, which means it progresses slowly. In some cases, it may not progress at all.
Treatment for hairy cell leukemia may vary, and people with this disease are not always treated. In some cases, treatment may not be needed if the blood cell counts are not too low and a person is not experiencing symptoms. Instead, watchful waiting will be used. Watchful waiting involves closely monitoring a person's condition, without using any forms of treatment, until symptoms appear or change.
Once blood cell counts become too low or symptoms appear, treatment may include chemotherapy, surgery, or biologic therapy (see Hairy Cell Leukemia Treatment for more information).
Nipent is a type of chemotherapy medication. It is specifically approved as a single agent for the treatment of hairy cell leukemia, which means it is used alone and not in combination with other chemotherapy medicines. The medication is used when hairy cell leukemia is active, which means there are symptoms or significantly low blood cell counts. 
Nipent can be used as the first medication to treat hairy cell leukemia, or it can be used to treat hairy cell leukemia that is resistant to a type of treatment known as interferon-alpha, such as interferon alfa-2b (Intron® A).
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Last reviewed by: Kristi Monson, PharmD;
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