Treatment Of Prostate Cancer
Patients with prostatic cancer might get a variety of treatments. Some treatments are standard (already in use). However, watchful waiting and active surveillance are treatments for older men who have no indications or symptoms of prostate cancer.
The term "watchful waiting" refers to the practice of closely observing a patient's status. Here no intervention is done until signs or symptoms arise or change.
Active surveillance is closely monitoring a patient’s status without administering any treatment unless test findings change. It is helpful to detect early indicators that the disease is progressing.
Patients are recommended to have various exams and tests during active surveillance. The tests include DRE, a PSA test, a transrectal ultrasound, and a biopsy to see if cancer is progressing.
When cancer starts to spread, treatment is given to try to cure it. The treatment plan will depend on your age, the stage of cancer, as well as the preferences to side-effects, long term effects and treatment goals.
1. Surgery
Patients in good health who simply have a tumor in their prostate gland may be treated with surgery to remove it. The surgical procedures are:
Radical prostatectomy: The prostate, surrounding tissue, and seminal vesicles are all removed during surgery. It is possible to remove surrounding lymph nodes at the same time. The following are the most common forms of radical prostatectomy:
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Open radical prostatectomy
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Radical laparoscopic prostatectomy
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Laparoscopic radical prostatectomy
Pelvic lymphadenectomy: Under a microscope, a pathologist examines the tissue for cancer cells. If cancer is present in the lymph nodes, the doctor will not remove the prostate gland and advise other treatment.
Transurethral resection of the prostate (TURP): This technique is known to treat benign prostatic hypertrophy. It helps to reduce symptoms caused by a tumor before further cancer treatments. In this, a resectoscope (a thin, illuminated tube with a cutting tool) is placed into the urethra, which helps remove tissue from the prostate.
2. Radiation therapy
Radiation therapy is a cancer treatment that involves high-energy x-rays or other forms of radiation to kill cancer cells from growing. Different types of radiation therapy include:
External radiation therapy: Radiation therapy uses a machine outside the body to send radiation to the cancerous part of the body. This therapy allows a high dose of radiation to reach the tumor while causing minimal damage to healthy tissue in the surrounding area.
Hypofractionated radiation therapy: It is a type of radiation therapy. A higher-than-usual total radiation dose is delivered once a day for a shorter time (fewer days). This therapy may have more side effects than regular radiation therapy.
Internal radiation therapy: Internal radiation therapy uses a radioactive substance filled in needles, seeds, or catheters inserted into cancer tissue. After the radioactive seeds are implanted in the prostate, the needles are removed after the procedure.
3. Radiopharmaceutical therapy
For the treatment of prostate cancer, radioactive material is used. The following are examples of radiopharmaceutical therapy:
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Alpha emitter radiation therapy treats prostate cancer that has spread deep to the bones.
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Radium-223, a radioactive material, is administered into a vein and circulated through the bloodstream. It gathers in cancerous parts of the bone and destroys the cancer cells.
4. Hormone therapy
Hormone therapy treats cancer by inhibiting cancer cell growth or blocking hormones. They are biological chemicals produced by glands and transmitted through the bloodstream.
Prostate cancer progression is accelerated due to the male sex hormones, and to limit the number of male hormones, drugs, surgery, or other hormones is used. The term for this therapy is androgen deprivation therapy (ADT).
Some of the hormone therapies for prostate cancer are:
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Abiraterone acetate, which inhibits the production of androgens in prostate cancer cells.
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Orchiectomy, a surgical treatment that involves the removal of one or both testicles, which are the source of male hormones like testosterone, to reduce the quantity of hormone produced.
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Estrogens, hormones that promote feminine sex characteristics and can inhibit the production of testosterone in the testicles. Estrogens are unlikely to be used in treating prostate cancer nowadays due to their adverse effects.
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Luteinizing hormone-releasing hormone agonists, which inhibit testosterone production in the testicles. Leuprolide, goserelin, and buserelin are among the examples.
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Antiandrogens, which can block the activity of androgens. Flutamide, bicalutamide, enzalutamide, apalutamide, and nilutamide are a few examples of these compounds.
5. Chemotherapy
Chemotherapy is a cancer treatment that involves administering drugs to cancer cells to limit their growth, either by killing them or preventing them from growing. Chemotherapy medications enter the blood circulation, reach cancer cells throughout the body, and are administered by mouth or injected into a vein or muscle.
6. Immunotherapy
Immunotherapy is a cancer-fighting treatment that makes use of the patient’s immune system. So, to restore the body’s natural defenses, substances manufactured by the body or in the lab are used.
7. Bisphosphonate therapy
When cancer has spread to the bone, bisphosphonate medications like clodronate or zoledronate are known to prevent bone damage. Bone loss is more common in men treated with antiandrogen treatment or orchiectomy.
Clinical trials to explore new types of treatment include: