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Chemo For Advanced Prostate Cancer

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Emerging Therapies For Prostate Cancer

Researchers are pursuing several new ways to treat advanced prostate cancer. Vaccines that alter the body’s immune system and use genetically modified viruses show the most promise. One vaccine technique works by manipulating blood cells from the patient’s immune system and causing them to attack the prostate cancer.

Blood is drawn from the patient. From the blood sample, cells that are part of the immune system are exposed to cells that make up prostate cancer. Then the blood cells are placed back in the body, with the hope that they will cause other immune system cells to attack the prostate cancer. In a more traditional type of vaccine, the patient is injected with a virus that contains PSA. When the body is exposed to the virus, it becomes sensitized to cells in the body that contain PSA and their immune system attacks them.

Immune or genetic therapy have the potential to deliver more targeted, less invasive treatments for advanced prostate cancer. This would result in fewer side effects and better control of the prostate cancer.

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Impact Of Age On Treatment

The rising number of men diagnosed with prostate cancer is a result of increasing life expectancy as well as the current practice of screening by prostate-specific antigen blood tests.10 Besides PSA and Gleason score, age is considered a key prognostic factor in treatment decision making. Although organ-confined disease can be cured by radical prostatectomy and full-dose local radiation therapy, treatment options for advanced- stage disease remain palliative. They include active surveillance, or watchful waiting, early versus delayed hormonal therapy to control disease progression, and continuous or intermittent androgen deprivation. Observational studies of older men with early stage disease have suggested conservative management as a viable option.11,12

Chodak and associates12 evaluated 828 men who were managed expectantly in a series of nonrandomized trials. Median follow-up was approximately 6.5 years. Patients with poorly differentiated cancers had a 10-fold increased risk of death from prostate cancer as compared with men showing highly differentiated prostate cancer. A 5-year disease-specific survival of only 34% was found in men with poorly differentiated prostate cancer. In contrast a 5-year disease-specific survival of 87% was described in men with well-or moderately differentiated cancers.

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Castrate Refractory Prostate Cancer: A Wider Range Of Options

In this section, we explain the treatments available at Birmingham Prostate Clinic for patients once their disease becomes resistant to hormone treatment, called castrate refractory prostate cancer. Two types of treatments are needed to:

  • Control the cancer and prevent further spread of cancer
  • Control or prevent the symptoms caused by the spread of prostate cancer to the bones

July 9, 2013 by Bert Vorstman

> some 75% of all prostate cancers diagnosed are classed as favorable-risk Gleason 6 > GENERALLY, MOST of these favorable-risk Gleason 6 stage T1c prostate cancers need NO treatment whether through focal therapy or whole gland treatment> GENERALLY, MOST favorable-risk Gleason 6 cancers do NOT PROGRESS while being monitored on ACTIVE SURVEILLANCE> 25% or less of prostate cancers detected are the high-risk significant prostate cancers and it is these cancers which demand treatment> NOT ALL PROSTATE CANCERS ARE EQUAL> more people die from drug resistant infections every year than from breast cancer and prostate cancer combined> the importance of prostate cancer is greatly overemphasized> the preoccupation with PSA prostate cancer screening and detection, particularly for the insignificant Gleason 6 prostate cancer, is disingenuous

Increased Risk Of Infection

IJMS

Steroids can hide or change the signs and symptoms of some infections. They might also make it harder for your body to deal with an infection. This means infections are more difficult to diagnose at an early stage.

Symptoms of an infection include a change in temperature, aching muscles, headaches, feeling cold and shivery and generally unwell. You might have other symptoms depending on where the infection is.

Infections can sometimes be life threatening. You should contact your advice line urgently if you think you have an infection.

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How Prostate Cancer Is Treated

In cancer care, different types of doctorsincluding medical oncologists, surgeons, and radiation oncologistsoften work together to create an overall treatment plan that may combine different types of treatments to treat the cancer. This is called a multidisciplinary team. Cancer care teams include a variety of other health care professionals, such as palliative care experts, physician assistants, nurse practitioners, oncology nurses, social workers, pharmacists, counselors, dietitians, physical therapists, and others.

The common types of treatments used for prostate cancer are described below. Your care plan may also include treatment for symptoms and side effects, an important part of cancer care.

Treatment options and recommendations depend on several factors, including the type and stage of cancer, possible side effects, and the patients preferences and overall health.

Cancer treatment can affect older adults in different ways. More information on the specific effects of surgery, chemotherapy, and radiation therapy on older patients can be found another section of this website.

Because most prostate cancers are found in the early stages when they are growing slowly, you usually do not have to rush to make treatment decisions. During this time, it is important to talk with your doctor about the risks and benefits of all your treatment options and when treatment should begin. This discussion should also address the current state of the cancer:

Endocrine Therapy And Prostate Cancer

Male hormones, specifically testosterone, fuel the growth of prostate cancer. By reducing the amount and activity of testosterone, the growth of advanced prostate cancer is slowed. Hormone therapy, known as androgen ablation or androgen suppression therapy, is the main treatment for advanced prostate cancer. It is the first line of treatment for metastatic prostate cancer.

In many patients, endocrine therapy provides temporary relief of symptoms of advanced prostate cancer. Endocrine therapy may reduce tumor size and levels of prostate specific antigen in most men. PSA is a substance produced by the prostate gland that, when present in excess amounts, signals the presence of prostate cancer.

However, hormone therapy is not without side effects. Some of the more serious side effects include loss of sex drive, impotence, weakened bones , and possibly heart problems.

Eventually, most patients with advanced prostate cancer stop responding to hormone therapy. Doctors call this castrate-resistant prostate cancer.

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Treating Prostate Cancer With Hormone Therapy

Hormone therapy, also known as androgen deprivation therapy , has long been the backbone of treatment for metastatic prostate cancer.

The male sex hormone testosterone is known to stimulate the growth of prostate cancer cells.

Hormone therapy, depending on the form, reduces this effect by either decreasing the bodys production of testosterone or blocking testosterone from binding to cancer cells.

There are several scenarios in which hormone therapy is typically used:

  • When prostate cancer has spread too far to be cured by surgery or radiation, or has recurred after surgical or radiation treatment
  • As an initial treatment for patients who are at higher risk of recurrence after treatment, such as those with a high PSA level or a high Gleason score
  • For patients who have a high PSA level following surgery or radiation, even if they have no evidence of disease. Not all doctors, however, agree with this approach

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What Is Intermittent Adt

How Does Prostate Cancer Chemotherapy Work? | Prolonged Survival & Improved Cure Rates | PCRI

Researchers have investigated whether a technique called intermittent androgen deprivation can delay the development of hormone resistance. With intermittent androgen deprivation, hormone therapy is given in cycles with breaks between drug administrations, rather than continuously. An additional potential benefit of this approach is that the temporary break from the side effects of hormone therapy may improve a mans quality of life.

Randomized clinical trials have shown similar overall survival with continuous ADT or intermittent ADT among men with metastatic or recurrent prostate cancer, with a reduction in some side effects for intermittent ADT .

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Understanding The Recurrent Prostate Cancer

Recurrent prostate cancer is when prostate cancer returns after the initial treatment or partial to complete remission has occurred. This is due to the reemergence of surviving prostate cancer cells that have grown large enough to be detected.

Following a prostatectomy, your prostate-specific antigen levels being to decrease. Eventually, they are no longer detectible, which is an indication that prostate cancer is no longer present. However, there is no clear reference for a normal PSA. It differs between men and can be affected by a number of factors. Following your initial prostate cancer treatment, PSA levels should stabilize and be low enough to where theyre not detected on blood tests. In some cases, PSA levels begin to rise again, indicating a need for further tests.

Even if youve had a prostatectomy, prostate cancer can recur in the immediately surrounding tissue, lymph nodes, seminal vesicles, muscles that control urination, the rectum, the wall of the pelvic, or metastasize into lymph nodes and bones further away.

What Are Risk Factors For Prostate Cancer

The main cause of prostate cancer is unknown. However, several factors may increase the risk of developing the disease:

  • Age: As you become older, your chances of acquiring prostate cancer increase. Most of the prostate cancer cases are observed in men over the age of 50 years.
  • Ethnicity: Prostate cancer is more common in Black men and less common in Asian men for unknown reasons.
  • Genetics: Men who have a parent or sibling who has had prostate cancer are at a slightly higher risk of developing prostate cancer.
  • Obesity: Studies have revealed that obesity may potentially raise the risk of prostate cancer.

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Are There Side Effects With Hormone Therapy

Yes, there are side effects or unwanted changes in your body caused by hormone therapy. Side effects are different from person to person, and may be different from one treatment to the next. Some people have no or very mild side effects. The good news is that there are ways to deal with most of the side effects. The side effects that you have depend on:

The side effects you have from hormone therapy may be acute or chronic. Acute side effects are sometimes called âearly side effects.â These types of side effects happen soon after the treatment begins and usually go away after you finish your hormone therapy. Other side effects are called chronic side effects or âlate side effects.â These side effects may happen several months after you start hormone therapy.

In order to reduce your chance of having side effects, your doctor may give you intermittent hormone therapy. If you are on intermittent hormone therapy, your doctor and health care team will carefully watch your PSA level. As it begins to go up, you are given hormone therapy medicine to lower your PSA. Another way for you to get intermittent hormone therapy is to take a medicine for a set period of time and then stop for a set period of time. For example, you may take a medicine for six months, stop for six months, and then start again for six months.

What Are The Side Effects

Chemotherapy Treatment for Advanced Prostate Cancer

Because chemotherapy acts to kill rapidly-dividing cancer cells, it also kills other rapidly-dividing healthy cells in the bodies, such as the membranes lining the mouth, the lining of the gastrointestinal tract, hair follicles, and bone marrow. As a result, the side effects of chemotherapy relate to these areas of damaged cells. The good news is that the damaged noncancerous cells will be replaced with healthy cells. Most side effects are only temporary.

The specific side effects you have depend on the type and amount of medicines you are given and how long you are taking them. The most common, temporary side effects of chemotherapy include:

Other side effects associated with chemotherapy’s effects on bone marrow include an increased risk of infection , bleeding or bruising from minor injuries , and anemia-related fatigue .

Some medications help control certain side effects, such as nausea and vomiting or diarrhea. Although it may take some time, side effects related to chemotherapy will go away when the treatments stop.

Ask your doctor about specific side effects you can expect from your chemotherapy medicines. Also, discuss troubling or unmanageable side effects with your doctor.

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What Is The Treatment For Advanced Prostate Cancer

No matter where prostate cancer spreads, its still treated as prostate cancer. Its harder to treat when it reaches an advanced stage.

Treatment for advanced prostate cancer involves targeted and systemic therapies. Most men need a combination of treatments and they may have to be adjusted from time to time.

Advanced Cancer Patients Report This One Unbearable Symptom

Cancer patients often describe an ongoing sense of extreme tiredness that can ‘affect you physically, mentally and emotionally’ and does not get better with rest

Recent figures have shown that more people than ever before started vital treatment for cancer over the last year compared to before the pandemic, says the NHS.

More than 320,000 patients received potentially lifesaving treatment from November 2021 to October 2022 – the highest year on record, and up by over 8,000 in the same period pre-pandemic.

There was also the highest number of cancer checks, with more than 2.8 million people seen, over 10,000 checked everyday and around 6 percent resulting in cancer diagnosis.

NHS chiefs have labelled this important progress as more people getting checked and treated could increase chances of survival.

Early detection of the disease greatly increases the chances for successful treatment, but failure to report symptoms significantly worsens the prognosis of cancer.

Reports state that most patients diagnosed in the advanced stages report the same debilitating symptom.

The American Cancer Society explains: Fatigue is the feeling of being tired and not being able to do things at your usual pace.

This tiredness can affect you physically, mentally and emotionally.”

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Almost everyone with advanced cancer has this symptom, adds the health body.

  • Feeling irritable

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Surgically Removing The Prostate Gland

A radical prostatectomy is the surgical removal of your prostate gland. This treatment is an option for curing prostate cancer that has not spread beyond the prostate or has not spread very far.

Like any operation, this surgery carries some risks, such as urinary incontinence and erectile dysfunction.

In extremely rare cases, problems arising after surgery can be fatal.

It’s possible that prostate cancer can come back again after treatment. Your doctor should be able to explain the risk of your cancer coming back after treatment, based on things like your PSA level and the stage of your cancer.

Studies have shown that radiotherapy after prostate removal surgery may increase the chances of a cure, although research is still being carried out into when it should be used after surgery.

You may want to ask your doctors about storing a sperm sample before the operation so it can be used later for in vitro fertilisation .

Treatment To Lower Testicular Androgen Levels

New treatment for advanced prostate cancer shows progress

Androgen deprivation therapy, also called ADT, uses surgery or medicines to lower the levels of androgens made by the testicles.

Orchiectomy

Even though this is a type of surgery, its main effect is as a form of hormone therapy. In this operation, the surgeon removes the testicles, where most of the androgens are made. This causes most prostate cancers to stop growing or shrink for a time.

This is done as an outpatient procedure. It is probably the least expensive and simplest form of hormone therapy. But unlike some of the other treatments, it is permanent, and many men have trouble accepting the removal of their testicles. Because of this, they may choose treatment with drugs that lower hormone levels instead.

Some men having this surgery are concerned about how it will look afterward. If wanted, artificial testicles that look much like normal ones can be inserted into the scrotum.

LHRH agonists

Luteinizing hormone-releasing hormone agonists are drugs that lower the amount of testosterone made by the testicles. Treatment with these drugs is sometimes called medical castration because they lower androgen levels just as well as orchiectomy.

With these drugs, the testicles stay in place, but they will shrink over time, and they may even become too small to feel.

  • Leuprolide mesylate

Many side effects of hormone therapy can be prevented or treated. For example:

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Drugs That Stop Androgens From Working

Anti-androgens

For most prostate cancer cells to grow, androgens have to attach to a protein in the prostate cancer cell called an androgen receptor. Anti-androgens are drugs that also connect to these receptors, keeping the androgens from causing tumor growth. Anti-androgens are also sometimes called androgen receptor antagonists.

Drugs of this type include:

They are taken daily as pills.

In the United States, anti-androgens are not often used by themselves:

  • An anti-androgen may be added to treatment if orchiectomy or an LHRH agonist or antagonist is no longer working by itself.
  • An anti-androgen is also sometimes given for a few weeks when an LHRH agonist is first started. This can help prevent a tumor flare.
  • An anti-androgen can also be combined with orchiectomy or an LHRH agonist as first-line hormone therapy. This is called combined androgen blockade . There is still some debate as to whether CAB is more effective in this setting than using orchiectomy or an LHRH agonist alone. If there is a benefit, it appears to be small.
  • In some men, if an anti-androgen is no longer working, simply stopping the anti-androgen can cause the cancer to stop growing for a short time. This is called the anti-androgen withdrawal effect, although it is not clear why it happens.

Newer anti-androgens

Enzalutamide , apalutamide and darolutamide are newer types of anti-androgens. They can sometimes be helpful even when older anti-androgens are not.

These drugs are taken as pills each day.

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