Androcur: Efficacy and Long-Term Use in Prostate Cancer - Oncology

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Androcur medication issues?


Dear Dr.
Fan,
I am unsure whether to direct my question to the Hematology-Oncology department or Urology.
My inquiry is as follows: My uncle is a terminal prostate cancer patient with metastases to the pelvis, femur, and lymph nodes.
The initial hormone therapy he received had significant side effects, and now his physician has prescribed Androcur (cyproterone acetate) for control.
He has been feeling quite well on Androcur with minimal side effects (except for...
which you might be aware of).
Since he is experiencing considerable relief from bone pain, I am wondering how beneficial it would be if he could use Androcur long-term for ongoing control.
Therefore, I would like to ask you about the efficacy of Androcur.
We would like to know: "What is the typical duration of effectiveness for Androcur?" Is it possible, in clinical practice (or with your patients), for Androcur to control the condition for 3 years, 5 years, or even allow for coexistence with cancer?
Thank you in advance for your response.

qingqiu bangzhu, 30~39 year old female. Ask Date: 2009/12/28

Dr. Fan Sheng reply Oncology


Hello: You mentioned that your uncle is a terminal prostate cancer patient, and he should have undergone either orchiectomy or received subcutaneous injections of androgen deprivation therapy.
Generally, this approach can be effective for about one and a half to two years.
After that, if oral anti-androgens like Enzalutamide are needed, their effectiveness will be shorter, and it is unlikely to last as long as you hope for, such as three to five years.
However, it's worth noting that individual responses can vary, and perhaps your uncle may have exceptional luck.

Reply Date: 2009/12/28

More Info


Androcur, known generically as cyproterone acetate, is a medication primarily used in the treatment of prostate cancer, particularly in cases where the cancer is hormone-sensitive. It works by blocking the effects of androgens (male hormones) such as testosterone, which can fuel the growth of prostate cancer cells. This mechanism makes it a valuable option for managing advanced prostate cancer, especially in patients who have experienced significant side effects from other hormonal therapies.

In your uncle's case, where he is dealing with advanced prostate cancer that has metastasized to the bones and lymph nodes, Androcur can be an effective part of his treatment regimen. The initial hormonal therapy he received may have caused considerable side effects, which is not uncommon. Many patients experience adverse effects from androgen deprivation therapy, including fatigue, hot flashes, and loss of libido. The fact that your uncle is tolerating Androcur well and experiencing relief from bone pain is a positive sign.

Regarding the duration of Androcur's effectiveness, clinical experience suggests that the response to this medication can vary significantly among individuals. Generally, the effectiveness of Androcur in controlling prostate cancer can last anywhere from several months to a few years. However, it is important to note that most patients may not achieve the long-term control they hope for, such as 3 to 5 years of effective treatment. The cancer may eventually progress despite treatment, as prostate cancer can develop resistance to hormonal therapies over time.

In clinical practice, some patients have been able to maintain a good quality of life and disease control for extended periods, but this is not the norm. Factors influencing the duration of effectiveness include the patient's overall health, the specific characteristics of the cancer, and how well the cancer responds to the treatment. Regular monitoring through PSA (prostate-specific antigen) levels and imaging studies is essential to assess the treatment's effectiveness and make timely adjustments if necessary.

It is also crucial to consider that while Androcur can help manage symptoms and slow cancer progression, it is not a cure for prostate cancer. The goal of treatment in advanced cases is often to control the disease and maintain quality of life rather than achieve complete remission.

In summary, while Androcur can be an effective option for managing advanced prostate cancer, its duration of effectiveness can vary widely among patients. It is unlikely that it will provide control for as long as 3 to 5 years for most individuals, but there are exceptions. Continuous communication with the healthcare team is vital to monitor the treatment's effectiveness and address any emerging concerns. If your uncle continues to respond well to Androcur, it may be a valuable part of his ongoing cancer management strategy.

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