Mathews Journal of Case Reports

2474-3666

Previous Issues Volume 4, Issue 1 - 2019

A Novel Patient Case Report to Show the Successful Termination of Untreatable Androgen-independent Prostate Cancer: Treatment with Cabergoline (Dopamine agonist)

Leslie C. Costello1 , Renty B Franklin1 , George W. Yu2

1Department of Oncology and Diagnostic Sciences, University of Maryland School of Dentistry, and The University of Maryland Greenebaum Comprehensive Cancer Center. Baltimore, Maryland. 21201 USA.

2Department of Urology; George Washington University School of Medicine; 2300 East Street, NW, Washington, DC. 20037 USA.

Corresponding Author: Leslie C. Costello, Department of Oncology and Diagnostic Sciences, University of Maryland School of Dentistry, 650 West Baltimore Street, Baltimore, Md. 21201 USA. 

Received Date: Mar 20, 2019
Published Date: May 08, 2019

Copyright © 2019 Costello LC

Citation: Costello LC, et al. (2019). A Novel Patient Case Report to Show the Successful Termination of Untreatable Androgen-independent Prostate Cancer: Treatment with Cabergoline (Dopamine agonist). Mathews J Case Rep 4(1): 42.


ABSTRACT

Introduction: Testosterone promotes the initial development of androgen-dependent prostate cancer. This is the basis for androgen ablation treatment, which attenuates, but does not terminate, the malignancy. Instead, it leads to prolactin-dependent malignancy; in which patient death generally occurs within 5 years. This report describes the novel treatment of a patient; which terminated androgen-independent prostate cancer.

Results: Patient “XY” was diagnosed with prostate malignancy and metastases. He received hormonal androgen ablation treatment, chemotherapy, and radiation treatment. He developed androgen-independent prostate cancer; with expected death in 2-3 years. He was treated with cabergoline (dopamine agonist) treatment, which decreased the plasma prolactin 88%; by inhibiting the pituitary production of prolactin. The subsequent PET scan (positron emission tomography) revealed the absence of malignancy; and the CTC (circulating tumor cells) decreased from count=5.4 to count=0.

Discussion: The cause of androgen-independent malignancy has been unknown, and an effective chemotherapy did not exist. The activities of normal and malignant prostate cells are regulated primarily by testosterone. When testosterone availability diminishes; prolactin regulation is manifested. This is represented when androgen ablation results in the development of prolactindependent malignancy. An effective chemotherapy would be targeted to eliminate the plasma prolactin-manifestation of the androgen-independent malignancy.

Conclusions: This report of a novel chemotherapy for androgen-independent malignancy corroborates our understanding of the implications of prolactin in its development and treatment. There are about 165,000 cases/year with 25,000 deaths/year in the U.S.; and 1.0 million cases/year with 260,000 deaths/year worldwide. Those patients with androgen-independent prostate cancer can now employ this cabergoline treatment to prevent or terminate this deadly type of prostate cancer.

Keywords: Androgen-Independent Malignancy; Advanced Prostate Cancer;Cabergoline Treatment; Case Report


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