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Chemotherapy is the use of drugs for treating cancer. The
drugs can be swallowed in pill form, or they can be injected by needle
into a vein or muscle. To treat testicular cancer, the drugs are
usually given into a vein. Chemotherapy is considered systemic therapy.
This means that the drug enters the bloodstream and circulates
throughout the body to reach and destroy the cancer cells. Chemotherapy
is an effective way to destroy any cancer cells that break off from the
main tumor and travel in the bloodstream to lymph nodes or distant
organs.
Chemotherapy is often used to cure testicular cancer when it
has spread outside the testicle or to decrease the risk of cancer
coming back after the testicle is removed. It is not used to treat the
cancer that is only in the testicle.
Doctors give chemotherapy in cycles, with each period of
treatment followed by a rest period to allow the body time to recover.
Chemotherapy cycles generally last about 3 to 4 weeks. Using 2 or more
chemotherapy drugs is often more effective than using any single drug.
The main drugs used to treat testicular cancer are:
- cisplatin
- vinblastine
- bleomycin
- cyclophosphamide
- etoposide
- paclitaxel
- ifosfamide
These drugs are used in various combinations. The chemotherapy
regimens most commonly used as the initial treatment for testicular
cancer are bleomycin, etoposide, and cisplatin (called BEP), or
etoposide and cisplatin (also known as EP). Some doctors believe that a
more intensive regimen should be used for patients with high-risk
disease, and may suggest a different combination of chemotherapy drugs
or even a stem cell transplant (see next
section).
Possible side effects
Chemotherapy drugs work by attacking cells that are dividing
quickly, which is why they work against cancer cells. But other cells
in the body, such as those in the bone marrow, the lining of the mouth
and intestines, and the hair follicles, also divide quickly. These
cells are also likely to be affected by chemotherapy, which can lead to
side effects.
The side effects of chemotherapy depend on the type and dose
of drugs you are given and for how long. These side effects can
include:
- hair loss
- mouth sores
- loss of appetite
- nausea and vomiting
- increased chance of infections (due to low white blood cell
counts)
- easy bruising or bleeding (due to low blood platelet
counts)
- fatigue (due to low red blood cell counts)
These side effects are usually short-term and go away after
treatment is finished. There are often ways to lessen these side
effects. For example, there are drugs that can be given to help prevent
or reduce nausea and vomiting. Be sure to ask your doctor or nurse
about medicines to help reduce side effects, and let him or her know
when you do have side effects so they can be managed effectively.
Some of the drugs used to treat testicular cancer can cause
long-term side effects. Cisplatin can cause kidney damage. It can also
damage nerves, causing hearing loss, numbness or tingling sensations in
the hands or feet, and sensitivity to cold or heat. (This is called
peripheral neuropathy.) In most cases this goes away once treatment is
stopped, but it may last a long time in some people. Bleomycin can
damage lungs, causing shortness of breath and trouble with physical
activity. You should report these, as well as any other side effects or
changes you notice while getting chemotherapy, to your medical team so
that you can get prompt treatment for them. In some cases, the doses of
the chemotherapy drugs may need to be reduced or treatment may need to
be delayed or stopped to prevent the effects from getting worse.
Development of a second cancer (usually leukemia, related to
etoposide) is a very serious but fortunately, a rare side effect. It
occurs in less than 1% of testicular cancer patients treated with
chemotherapy. People who have had chemotherapy for testicular cancer
seem to have a higher risk of heart problems later in life. Several
studies have also suggested that this chemotherapy treatment can
sometimes cause high blood cholesterol to develop over time, which may
later require treatment.
For more information about chemotherapy and its side effects,
please see the American Cancer Society document, Understanding Chemotherapy: A
Guide for Patients and Families.
Last Medical Review: 08/03/2009 Last Revised: 08/03/2009
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