Prostate Cancer Chemotherapy
Chemotherapy involves using powerful drugs to prevent cancer cells from reproducing. Unlike surgery and radiation
therapy, chemotherapy acts on all cancer cells throughout the body. However, this therapy was once rarely used in
the treatment of prostate cancer; it had not proved effective against the disease or in improving survival. Over
time, however, research has shown that chemotherapy may be indicated for the treatment of certain forms of prostate
cancer.
After a period of hormone treatment, some patients tend to develop a condition called hormone resistance;
chemotherapy becomes therefore necessary. Chemotherapy can also be used in the treatment of prostate cancer when it
has evolved with extraprostatic extension (unfavorable prognostic factor in patients
with prostate carcinoma)
. In this case, the goal of the therapy is used to reduce the pain associated with the cancer or control its
symptoms. Many studies have been conducted to develop an effective systemic cytotoxic chemotherapy to fight cancer
cells in hormone- resistant prostate cancer. Nowadays, different chemotherapy protocols have been adopted, used
alone or in combination.
Initially, association of mitoxantrone (Novantrone)
and prednisone (Deltasone)
has demonstrated more or less positive effects; these drugs reduce pain related to prostate cancer and provide
improved quality of life without, however, improving survival. After which, taxanes and docetaxel (Taxotere®) have
shown efficacy in the treatment of prostate cancer unresponsive to hormonal treatment; these drugs improve quality
of life, reduce pain and prolong patient survival. Nowadays, other chemotherapeutic drugs are used to fight
prostate cancer. Their effects vary from patient to another and depending on the stage of the tumor at
diagnosis.
The negative
effects of chemotherapy drugs used in prostate cancer treatment vary from patient to another; the most common
include:
- nausea
- vomiting
- diarrhea
- hair
loss
- nail
changes
- constipation
- changes in
taste
- extreme
tiredness
- muscle, joint, or bone
pain
- increased eye
tearing
- sores in the mouth and
throat
- Redness, dryness, or
swelling at the site where the medication was injected.
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