Stage 4 Prostate Cancer Treatments and Prognosis

Stage 4 prostate cancer is the most advanced stage of the disease. It means that cancer has spread beyond the prostate to distant areas of the body. Learn more about this stae, what treatments are available, and the prognosis.

Stage 4 Prostate Cancer Symptoms

Brianna Gilmartin / Verywell

Understanding Staging

The most common staging system used with prostate cancer is the TNM staging system. Another system used by some hospitals and healthcare providers is the Jewett staging system which breaks down tumors into stage A to stage D.

With the TNM system, letters stand for:

  • T is for tumor size.
  • N is for lymph node involvement. N0 means cancer has not spread to any lymph nodes. N1 means the tumor has spread to nearby lymph nodes. N2 means the tumor has spread to distant lymph nodes.
  • M is for metastases. M0 means that a prostate cancer has not spread to distant organs. M1 means that a prostate cancer has spread to distant organs—the bones are the most common area of prostate cancer metastases.

Prostate cancer is considered stage 4 in three different ways:

  • A T4 tumor with no lymph node involvement and no metastases.
  • Any size tumor along with nearby lymph nodes positive (N1) and no metastases.
  • Any size tumor alone with any lymph node status (none, nearby nodes positive, or distant nodes positive) plus metastases to another region of the body (M1).

Symptoms

Symptoms of stage 4 prostate cancer can be related to cancer in your prostate, or due to metastases. Some of these include:

  • Blood in the urine
  • Difficulty passing urine
  • Erectile dysfunction
  • Bone pain from bone metastases
  • Pain or swelling in the legs or bladder problems

Diagnosis

Tests to diagnose prostate cancer may include a computerized tomography (CT) scan, ultrasound, magnetic resonance imaging (MRI), or positron emission tomography (PET) scan to evaluate the growth and look for metastases. A biopsy is usually done to look at the aggressiveness of the tumor.

Treatment

While stage 4 prostate cancer isn’t usually curable, it is treatable. A combination of several treatments is usually used over time for this stage of the disease.

Hormone Therapy

Hormone therapy is often the mainstay for stage 4 disease. Different options are available to reduce the amount of testosterone in your body. Some medications stop the production of testosterone, and others work to prevent testosterone from stimulating prostate cancer cells.

Just as estrogen works as a fuel to stimulate the growth of many breast cancer cells, testosterone works as a fuel to facilitate the growth of prostate cancer cells.

Palliative Surgery

A transurethral resection of the prostate (TURP) procedure is sometimes done at this stage. Since stage 4 prostate cancer has by definition spread to other parts of the body, surgery to remove the prostate is not effective in “curing” cancer as it may be in earlier stages of prostate cancer.

These surgeries are sometimes done for symptoms related to the prostate. Sometimes an orchiectomy (removal of the testicles) is also done as a form of hormonal therapy.

Palliative Radiation

Radiation may be used along with hormonal therapy initially to control pain, and after hormonal therapy has stopped working. Radiation may also be used for bone metastases to decrease pain.

Treatment of Bone Metastases

Treatment of bone metastases can include a combination of radiation therapy and a medication category called bisphosphonates.

Chemotherapy

Chemotherapy may work to extend life for men with prostate cancer and also relieve pain due to metastases.

Prognosis

The prognosis of stage 4 disease varies considerably depending on how far cancer has spread. This can be done by breaking stage 4 down into two parts.

Stage 4 with regional metastases: Prostate cancer that is called stage 4 due to a large tumor size (T4) or due to spread to nearby lymph nodes has a five-year survival rate of nearly 100%.

Stage 4 with distant metastases: According to the National Cancer Institute’s SEER data, people who have stage 4 prostate cancer with spread to distant lymph nodes (N2) or to other regions of the body such as bones, had a five-year survival rate of 30.2%.

Keep in mind that treatments for advanced cancers are improving each year. Every person is different, and clinical trials today may change those numbers tomorrow.

Coping

Learn about your cancer. Be aware of some common prostate cancer emergencies so you can be prepared. Accept help. Stage 4 prostate cancer can sometimes cause significant pain. Talk to your healthcare provider and don't try to be "a hero" and avoid treating your symptoms.

Consider joining a support group or check into online stage 4 prostate cancer communities. If it is your loved one coping with prostate cancer, learn important tips on supporting a loved one with prostate cancer.

Frequently Asked Questions

  • Is prostate cancer curable?

    Yes, prostate cancer is curable. This treatment can be performed using different procedures; this includes surgery, external radiation, and brachytherapy (internal radiation). The likelihood of a cure is affected by a person's age, the stage of the disease, and if they lead an otherwise healthy life.

  • What are the 4 stages of prostate cancer?

    The four stages of prostate cancer are numbered one to four using roman numerals. These include stage I, stage II, stage III, and stage IV. Each stage describes whether cancer is contained entirely within the prostate gland or has spread to other areas within the body. Stages II, III, and IV also have substages that further classify the progression of the disease.

13 Sources
Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
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Additional Reading

By Matthew Schmitz, MD
Matthew Schmitz, MD, is a professional radiologist who has worked extensively with prostate cancer patients and their families.