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Androgen deprivation therapy (ADT), also called androgen ablation therapy or androgen suppression therapy, is an antihormone therapy whose main use is in treating prostate cancer. Prostate cancer cells usually require androgen hormones , such as testosterone , to grow.
Androgen suppression, also known as testosterone suppression, is a medical treatment to suppress or block the production or action of male sex hormones, typically used against certain cancers that rely on male growth hormones.
The most common methods of androgen deprivation therapy currently employed to treat prostate cancer are castration (with a GnRH modulator or orchiectomy), nonsteroidal antiandrogens, and the androgen synthesis inhibitor abiraterone acetate. [16] Castration may be used alone or in combination with one of the other two treatments.
The exact mechanism of action of these hormones is unclear, and may involve both direct effect on the tumor cells (suppression of estrogen receptor levels, alteration of hormone metabolism, direct cytotoxicity) and indirect endocrine effects (suppression of adrenal androgen production and plasma estrone sulfate formation). [1]
Maximum or maximal androgen blockade (MAB) or complete or combined androgen blockade (CAB) is a medical treatment involving the combination of both androgen receptor (AR) antagonism and inhibition or suppression of androgen production to attain maximal effectiveness in androgen deprivation therapy (ADT). [1]
Antihormone therapy is a type of hormone therapy that suppresses selected hormones or their effects, in contrast with hormone replacement therapy, which encourages hormone activity. The suppression of certain hormones can benefit patients with certain cancers because certain hormones prompt or help the growth of a tumor . [ 1 ]
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