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adjuvant therapy
Adjuvant therapy or care, also called adjunct therapy or adjunctive therapy or care, is therapy that is given in addition to the primary, main, or initial therapy to maximize its effectiveness. As an adjuvant agent modifies the effect of another agent, so adjuvant therapy modifies other therapy. The surgeries and complex treatment regimens used in cancer therapy have led the term to be used mainly to describe adjuvant cancer treatments. An example of such adjuvant therapy is the additional treatment usually given after surgery where all detectable disease has been removed, but where there remains a statistical risk of relapse due to occult disease. If known disease is left behind following surgery, then further treatment is not technically adjuvant.
==Adjuvant cancer therapy==
For example, radiotherapy or systemic therapy is commonly given as adjuvant treatment after surgery for breast cancer. Systemic therapy consists of chemotherapy, immunotherapy or biological response modifiers or hormone therapy. Oncologists use statistical evidence to assess the risk of disease relapse before deciding on the specific adjuvant therapy. The aim of adjuvant treatment is to improve disease-specific symptoms and overall survival. Because the treatment is essentially for a risk, rather than for provable disease, it is accepted that a proportion of patients who receive adjuvant therapy will already have been cured by their primary surgery.
Adjuvant systemic therapy and radiotherapy are often given following surgery for many types of cancer, including colon cancer, lung cancer, pancreatic cancer, breast cancer, prostate cancer, and some gynaecological cancers. Some forms of cancer fail to benefit from adjuvant therapy, however. Such cancers include renal cell carcinoma, and certain forms of brain cancer.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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