Breast Cancer Home > What Is Goserelin Acetate Implant Used For?

A healthcare provider may prescribe goserelin acetate implants for treating prostate cancer or breast cancer. This medication may also be used to help relieve symptoms of endometriosis. These implants work by decreasing the amount of testosterone or estrogen the body produces. Possible off-label uses for goserelin acetate implants include the treatment of uterine fibroids and precocious puberty.

An Overview of Uses for the Goserelin Acetate Implant

The goserelin acetate implant (Zoladex®) is a prescription hormone medication that belongs to a group of drugs called gonadotropin-releasing hormone (GnRH) agonists. It comes as a small implant that is injected just beneath the skin of the abdomen (stomach). The goserelin acetate implant is approved for the following uses:
  • Treatment of prostate cancer in men
  • Treatment of breast cancer in women
  • Management of endometriosis
  • Thin the lining of the uterus (the endometrium) before endometrial ablation, a procedure used to treat abnormal uterine bleeding.

Using Goserelin Acetate Implants for Prostate Cancer

Prostate cancer occurs when abnormal cells begin to grow in the prostate tissue. It is the second most common type of cancer to occur in men (second only to skin cancer).
After prostate cancer is diagnosed, healthcare providers will determine how advanced the cancer is by staging it. Staging is based on the size of the tumor and whether the cancer has spread to other areas of the body. In general, there are four stages of prostate cancer (the higher the stage number, the more extensive the cancer). These include:
  • Stage I describes cancer that is only in the prostate tissue.
  • Stage II describes cancer that is more advanced than Stage I, but still remains localized to the prostate. This stage is further divided into IIA and IIB, with Stage IIA being limited to one lobe of the prostate.
  • Stage III cancer has spread beyond the outer layer of the prostate, but not more widely.
  • Stage IV prostate cancer has spread widely to other areas of the body, such as the bladder, rectum, bones, or lymph nodes. It may also be referred to as advanced prostate cancer or late-stage prostate cancer.
What can be confusing is that sometimes letters are used instead of roman numerals to describe the stages of prostate cancer. This is because there is more than one staging system. You may see Stage A, Stage B, Stage C, and Stage D instead of Stage I, Stage II, Stage III, or Stage IV. In general, these different staging systems are equivalent.
Prostate cancer cells grow in the presence of testosterone. The goserelin acetate implant reduces the amount of testosterone produced by the testes, thus slowing down the growth and progression of the cancer cells.
The goserelin acetate implant is approved for the treatment of Stage IIB to Stage III prostate cancer (or stage B2-C). When used in theses stages, it is used in combination with flutamide (Eulexin®), another prostate cancer medicine, before and during radiation treatment.
The goserelin acetate implant is also approved for the palliative treatment of advanced prostate cancer. Palliative treatment helps reduce cancer symptoms, but is not intended to cure the the disease. This medicine can help ease prostate cancer symptoms, such as pain and difficulty urinating, but will not make the cancer go away.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
List of references (click here):
Other Articles in This eMedTV Presentation

Topics & Medications


Related Channels

eMedTV Links
Copyright © 2006-2020 Clinaero, Inc.

eMedTV serves only as an informational resource. This site does not dispense medical advice or advice of any kind. Site users seeking medical advice about their specific situation should consult with their own physician. Click Terms of Use for more information.

This site complies with the HONcode standard for trustworthy health information:
verify here.