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REVIEW ARTICLE
Year : 2019  |  Volume : 35  |  Issue : 3  |  Page : 189-196

The resurgence of estrogens in the treatment of castration-resistant prostate cancer


1 Department of Urology, Lourdes Hospital, Kochi, Kerala, India
2 Department of Urology, Kasturba Medical College (A Unit of Manipal Academy of Higher Education), Mangalore, Karnataka, India

Correspondence Address:
P Venugopal
Department of Urology, Kasturba Medical College (A Unit of Manipal Academy of Higher Education), Mangalore, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/iju.IJU_56_19

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Use of exogenous estrogens in manipulating the androgenestrogen equilibrium was one of the earliest therapeutic strategies developed to treat prostate cancer which followed close on heels the discovery of hormone dependence of this tumor. Despite its well-documented benefit, estrogen therapy fell out of favor with the advent of other forms of androgen deprivation therapy (ADT) as the former registered a higher incidence of cardiovascular complications and poorer overall survival. Clearer understanding of the mechanism of action of estrogen coupled with the adoption of alternative routes of administration has triggered a renewed interest in estrogen therapy. Since then, many studies have not only proved the therapeutic benefit of estrogens but also explored the ways and means of minimizing the dreaded side effects deterring its use. Further, the fact that estrogen therapy offered a clear advantage of reduced cost of treatment over other treatments has led many countries to readopt it in the treatment of advanced prostatic cancer. We reviewed the published data on the use of estrogens in CRPC, which may affect its revival as an efficacious treatment option having minimal side effects, with modified dosage and route of administration. Estrogen therapy would be a less expensive option having equivalent or even better therapeutic effect than ADT in advanced carcinoma of prostate.


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