How many months the medications to be taken to reduce testosterone?
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Achieving and maintaining effective suppression of serum testosterone levels in men treated with androgen ablation is one of the essential strategies in the management of prostate cancer. Historically, a serum testosterone below 50 ng/dL was considered to be the castrate level. Current data suggest that the new target for either surgical or chemical castration is a serum testosterone level of lower than 20 ng/dL in an attempt to maximize therapeutic outcomes. Testosterone breakthrough and the acute-on-chronic effects of administration of a luteinizing hormone-releasing hormone analogue may cause testosterone levels to periodically rise, sometimes to noncastrate levels. The goal of androgen ablation is to identify those agents that will most consistently achieve and maintain the lowest testosterone levels possible.
Key words: Prostate cancer, Androgen ablation, LHRH analogues, LHRH antagonists, Testosterone
The cornerstone of understanding the basic biology of prostate cancer relies upon the important discovery that prostate cancer is a hormonally responsive tumor. The current use of androgen ablation therapy in prostate cancer includes treatment based on serum prostate-specific antigen (PSA) only or local recurrence; neoadjuvant or adjuvant treatment of high-risk disease, usually in combination with radiation therapy; and treatment of patients with metastatic disease regardless of symptoms. The American Society of Clinical Oncology (ASCO) 2007 guidelines and National Comprehensive Cancer Network (NCCN) 2009 guidelines recommend either luteinizing hormone-releasing hormone (LHRH) agonists or bilateral orchiectomy as first-line therapy for men with advanced prostate cancer.1,2
Key words: Prostate cancer, Androgen ablation, LHRH analogues, LHRH antagonists, Testosterone
The cornerstone of understanding the basic biology of prostate cancer relies upon the important discovery that prostate cancer is a hormonally responsive tumor. The current use of androgen ablation therapy in prostate cancer includes treatment based on serum prostate-specific antigen (PSA) only or local recurrence; neoadjuvant or adjuvant treatment of high-risk disease, usually in combination with radiation therapy; and treatment of patients with metastatic disease regardless of symptoms. The American Society of Clinical Oncology (ASCO) 2007 guidelines and National Comprehensive Cancer Network (NCCN) 2009 guidelines recommend either luteinizing hormone-releasing hormone (LHRH) agonists or bilateral orchiectomy as first-line therapy for men with advanced prostate cancer.1,2
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