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Which is the most common way that that prostate cancer is identified?

Most prostate cancers in the U.S. are identified through the following screening tests: Prostate-specific antigen (PSA). This simple blood test checks levels of prostate-specific antigen, a protein produced by prostate cells. The higher the PSA level, the more likely prostate cancer is present.

ucsfhealth.org - Prostate Cancer - Localized | Conditions - UCSF Health

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Treatment Options

Deciding how to treat prostate cancer can be a confusing process. Each treatment has its own mix of benefits, risks and effects on quality of life. The good news is that several treatments have proved successful for many patients, either in providing a cure or keeping the cancer under control for years. However, your doctor may not be able to tell you which treatment to choose, because personal preferences typically play a significant role in the decision. In addition to the tumor risk factors described above, that choice is influenced by factors such as:

Your age and life expectancy

Your general health and other medical conditions

Cost and practical considerations

Attitudes about achieving a cure or living with cancer

Your needs, concerns, values and social relationships

Your feelings about specific treatment side effects, which can include urinary incontinence and urinary irritation, erectile dysfunction, bowel problems, and other issues that will be discussed below. You and your providers may choose a combination of the treatments described below.

Active surveillance

As previously noted, many prostate cancers do not pose an immediate risk to health and may not require treatment. Active surveillance is a way to monitor low-risk prostate cancer – cancer that is not an immediate risk to your well-being.

The ideal candidate for active surveillance has:

A PSA at the time of diagnosis of 10 ng/mL or less that does not change much over time. A better way to interpret PSA is to calculate PSA density, or PSAD (PSA divided by the prostate volume). A PSA density under 0.15 is favorable, suggesting the cancer is less likely to grow. Ultrasound, MRI and physical examination (DRE) – or other test results – that suggest the cancer has not spread outside the prostate gland. Low-risk biopsy results, including a prostate biopsy Gleason score of 6 or less (no pattern 4 or 5). It is important that the biopsy is performed correctly: Enough of the prostate must be sampled to be sure the cancer is not large or aggressive. If the initial biopsy was not performed at a high-volume center and was not image-guided, another is usually warranted before finalizing a decision for active surveillance. These confirmatory biopsies are particularly important if the original biopsy was done outside an academic setting. An MRI is recommended before the biopsy to help target where samples are taken. Carefully selected men with slightly higher-risk disease characteristics (such as low-volume Gleason 3+4) may also be candidates for active surveillance, particularly if imaging or genomic testing results are reassuring. You and your doctor can discuss whether you are a good candidate for this option. If you choose active surveillance, you will visit your doctor for regular checkups. During these visits, you will undergo tests to find out whether your cancer has changed. The tests usually include:

A PSA blood test every six months

MRI scans, genetic testing of the tumor, and other advanced tests (some developed at UCSF) to better assess risk and the appropriateness of continuing active surveillance as treatment Repeat MRI, prostate biopsy or both every one to two years initially (sometimes sooner than one year) and then less frequently to monitor your cancer grade and volume If the tests suggest your cancer is growing or becoming more aggressive, your doctor may recommend that you start treatment or consider an early repeat biopsy. But if changes are small or nonexistent, your doctor may advise that you can safely continue active surveillance. Making lifestyle changes – such as improving your nutrition, reducing stress and getting more exercise – can also be part of active surveillance. A study at UCSF showed that men on active surveillance who made lifestyle changes had lower PSA levels and lower rates of treatment than men who did not make these changes. You may choose to join diet and lifestyle studies at UCSF or support groups as part of your active surveillance. Making healthy lifestyle choices can also lower your risk of cardiovascular disease – the number one cause of death in men with or without prostate cancer. Lifestyle changes are reviewed below.

Is active surveillance right for you?

There are some risks associated with active surveillance. They include a low risk of infection with every biopsy and a very low risk of cancer progressing in any one interval of surveillance. Sometimes men choose active surveillance for a period of time and then decide to undergo treatment. Thousands of UCSF patients have chosen active surveillance to initially manage their prostate cancer. This is one of the largest groups of patients on active surveillance in the world. About one-third of these men receive treatment by five years and 50% by 10 years. The window of opportunity to cure prostate cancer is usually measurable in years or even decades. In fact, treatment results for these men appear to be similar to what would have been expected had they chosen treatment right after their original diagnosis. Based on our experience and those reported from other centers, the risk of significant cancer progression in the short to intermediate term, while not zero, appears to be very low. Some men with risk factors – such as family history, genetic mutations and being African American – may still be candidates for active surveillance but need a more careful or intense surveillance regimen to make sure any early signs of progression are identified. The most common reason for seeking treatment is a biopsy that shows the cancer is growing or becoming more aggressive in appearance (such as a Gleason score increase from 6 to 7 or more). Changes in PSA or cancer stage based on imaging results may also lead to treatment. Over the years, active surveillance has emerged from a research concept to the preferred standard of care for most men with low-risk prostate cancer. Your doctor can answer your questions about active surveillance, and you can decide together whether this is a good option for you.

Radical prostatectomy

A radical prostatectomy is surgery to remove the entire prostate gland and seminal vesicles after a prostate cancer diagnosis is made. Sometimes nearby lymph nodes are also removed. A variety of surgical techniques are used for a radical prostatectomy. It can be done through an "open" incision in the abdomen (radical retropubic prostatectomy) or through an incision in the perineum, the area between the scrotum and the anus (radical perineal prostatectomy). Most high-volume U.S. centers no longer favor these approaches. Alternatively, a procedure called laparoscopic radical prostatectomy may be used. In laparoscopy, surgery is performed by making small incisions and passing specially designed telescopes and other delicate instruments into the body. Laparoscopic radical prostatectomy results in less blood loss, less discomfort and an earlier return to normal activities. At UCSF, we perform laparoscopic radical prostatectomies using a surgical system called the da Vinci robot, which offers excellent magnification and surgical precision. In terms of controlling cancer control and preserving urinary and sexual function, outcomes are at least as good as those obtained via open radical retropubic prostatectomy. Other complications appear to be less common with the robot-assisted approach. Subtle differences among these procedures for prostatectomy can be discussed with your surgeon. At UCSF, we use a robotic approach for the vast majority of procedures for the following reasons: the robotic approach appears to remove the prostate cancer as well as the open approach; it is associated with less blood loss, an earlier return to normal activities and fewer complications; and it may be associated with an enhanced ability to spare the neurovascular bundles that control erectile function. Once the prostate gland and seminal vesicles are removed, lymph nodes may be sampled (see below) and the bladder is reattached to the urethra. Most men need to spend only one night in the hospital after laparoscopic surgery. A urinary catheter is left in place for about a week to allow urine drainage while healing takes place. In some cases, an abdominal drain (tube that drains fluid accumulation) may be in place for one or two days. Radical prostatectomy allows, in most cases, for complete removal of the cancer. Once the prostate is removed, analysis of the tissue (a pathology report) can indicate how advanced the cancer is, what the risk for recurrence is, and whether additional treatment may be needed. It is relatively easy to follow men who have undergone radical prostatectomy to be sure their cancer is gone. Once the prostate is removed, the patient's PSA should fall to undetectable levels within six to eight weeks. Radiation therapy can be administered after surgery, if necessary, with some risk of additional side effects. Patients who choose radical prostatectomy should be in good health, have a life expectancy of more than 10 years, and have discussed all available treatment options with their doctors. Some men with prostate cancer extending beyond the prostate gland may benefit from the procedure as well, frequently in combination with radiation or other treatments. Radical prostatectomy is occasionally an option when prostate cancer recurs after radiation or other treatments. This approach, known as salvage prostatectomy, carries higher risks of side effects and should be considered carefully.

Lymph node dissection

When prostate cancer spreads (metastasizes), it often first invades the lymph nodes near the prostate. For this reason, the lymph nodes close to the prostate may be removed during a prostatectomy so they can be checked for cancer. Lymph node removal is not necessary in all patients. It can cause lymphedema, a buildup of fluid in the fatty tissue just under the skin, though this complication is rare.

Nerve-sparing radical prostatectomy

The nerves and blood vessels (neurovascular bundles) that allow the penis to become erect run along either side of the prostate. To help a patient maintain the ability to have erections after surgery, either one or both of these bundles can be spared. Each bundle contains multiple nerve fibers, and in some cases, part of a nerve may be spared; nerve sparing is not necessarily an all or nothing choice. The best results are achieved if both bundles can be spared. Young men who are sexually active and report having good erections before surgery are most likely to benefit from preservation of the bundles. In some cases, preservation of the bundles may not be advised due to the location or extent of the cancer. As the nerves run close to the prostate, preservation of the bundles in some men may risk leaving cancer behind. You should discuss the risks and benefits of nerve-sparing surgery with your doctor.

Side effects of radical prostatectomy

The most common side effects of the procedure are incontinence (leakage of urine, usually with stress or activity) and erectile dysfunction (inability to get or maintain an erection). The incontinence, though common early after surgery, usually goes away. Whether erectile function returns depends on whether the nerves surrounding the prostate can be spared at surgery, patient age and baseline function. Men who are older or already have erection problems are most likely to have erectile dysfunction afterward. For more information about radical prostatectomy, see Radical Prostatectomy Basic Information – A Patient Guide and After your Radical Prostatectomy – A Patient Guide. For more information on erectile dysfunction and treatment, see Managing Erectile Dysfunction – A Patient Guide.

Radiation therapy

While radical prostatectomy seeks to cure cancer by removing it, radiation therapy aims to cure the disease by killing cancer cells in place. Radiation can be given as external beam radiation therapy (EBRT), as brachytherapy (temporarily or permanently implanting radioactive "seeds") or as both. EBRT radiates the cancer from the outside to inside. Brachytherapy radiates from inside the tumor. Radiation therapy is all about the radiation dose. Higher dose does a better job killing more cancer cells, but higher dose increases the risk of radiation induced side effects. New radiation hardware, software and technique have improved the ability to give a high dose to the cancer while minimizing the dose to healthy surrounding tissues. This has resulted in much improved cure rates and lessened side effects from radiation therapy.

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External beam radiation therapy (EBRT)

With EBRT, radiation – usually in the form of X-ray photons – is focused from a source outside the body onto the prostate and, if needed, surrounding lymph node areas. In preparation for the therapy, internal markers (typically three gold nonradioactive seeds) are implanted in the prostate, using a procedure similar to prostate biopsy; they're used to help align and target the prostate with the radiation beam. A planning CT scan is then performed to locate the prostate gland in relation to the surrounding structures and organs. The resulting images are used to make a treatment plan that targets the prostate gland (and possibly the seminal vesicles or lymph nodes) while protecting healthy surrounding tissues (such as the bladder or rectum). Most radiation today is given as a type of EBRT known as intensity-modulated radiation therapy (IMRT), in which the shape and intensity of several fine radiation beams can be varied during treatment to minimize damage to surrounding tissues. At UCSF, patients also benefit from image-guided radiation therapy (IGRT), where the prostate is imaged immediately before the start of each treatment session to verify and adjust the position of the gland for added accuracy. Stereotactic body radiation therapy, or SBRT (whether done on the linear accelerator or the CyberKnife robotic system), is a special type of IMRT/IGRT in which high doses of radiation are given over a small number of treatments (typically four or five). The schedule for EBRT treatments varies. Treatment may be delivered in one of the following ways: Small doses per daily sessions (five days a week) over a protracted course of five to nine weeks (conventional radiation). High doses per session in four or five sessions delivered over two to three weeks (hypofractionated radiation). SBRT is a special form of hypofractionated radiation. An intermediate daily dose per session (five days a week), typically over four weeks (moderately hypofractionated radiation). With SBRT (sometimes using the CyberKnife robot) to administer a high dose over a small number of treatments (typically four or five). Depending on your prostate cancer risk category and other individual or disease characteristics, your doctor may recommend conventional fractionation or stereotactic treatments. All treatments are delivered on an outpatient basis, with no hospitalization necessary. Conventional treatments typically last 10 to 15 minutes, while SBRT treatments take around 30 minutes. Patients receiving radiation to the lymph nodes (such as those with high-risk disease) or those receiving radiation after prostatectomy usually receive conventional fractionation. In certain situations, such as high-risk prostate cancer, your doctor may recommend a combination of EBRT and brachytherapy "boost" (see below) to improve the likelihood of cancer control. In that scenario, the number of EBRT treatments will be reduced, typically to five weeks. Additionally, EBRT is sometimes combined with four to 24 months or more of hormonal therapy in men with higher-risk disease. There is a great deal of discussion, and some highly misleading marketing, surrounding an alternative form of radiation called proton beam therapy. While it is a standard option, no clinical study has ever shown that proton beam therapy has an advantage over other forms of radiation in terms of cancer control, complications or quality of life. Side effects. Common side effects during treatment include loose stool or diarrhea, frequent urination or defecation, a burning sensation while urinating, and fatigue. Medication or changes in diet can help relieve the symptoms, which usually resolve within a few weeks after treatment ends. Less commonly, some men develop persistent or delayed side effects months or years after treatment. These include scar tissue in the urethra, fistulas (holes between the rectum and urinary tract, which can lead to chronic infections), blood in urine or stool, and secondary cancers of the bladder or rectum. Erectile dysfunction can develop over time, particularly in men who receive combination radiation and ADT. Because of the effect on sexual function, men who may want to father children in the future should consider sperm banking prior to treatment. While EBRT will not affect your ability to have an orgasm, it may affect your ability to ejaculate and reduce the force or volume of ejaculate.

Brachytherapy (seed implants)

Brachytherapy uses tiny radiation seeds, each smaller than a grain of rice, that are implanted in or around the prostate gland (or both) to destroy cancer cells. The seeds may be placed permanently in or near the prostate, or temporarily, through seed-filled narrow tubes inserted briefly one or more times for one or two days. With a permanent seed implant (also known as low dose rate, or LDR, brachytherapy), the seeds contain radioactive isotopes, such as iodine-125, palladium-103, or cesium-131. The seeds are first placed inside thin hollow needles that are then inserted through the skin of the perineum (the area between the scrotum and anus); next, the needles are withdrawn, leaving the seeds inside the prostate. Seed placement follows a predetermined map, computer generated to specifically fit your prostate volume and shape. This is typically a two-step procedure: first, a transrectal ultrasound is performed to map the prostate, and then seeds are placed under either general anesthesia or spinal anesthesia on an outpatient basis. In cases of substantial prostate enlargement, testosterone-lowering medication is sometimes required to shrink the prostate before the seeds can be placed. The temporary implant, known as high dose rate (HDR) brachytherapy delivers a larger dose in one or more sessions over one or two days in the hospital. Under anesthesia and ultrasound guidance, multiple hollow needles are placed through the perineum into the prostate. Then a planning CT scan is done and a complex computer program helps generate a treatment plan. The HDR machine houses a high-energy radioactive seed (iridium-192), which is attached to a wire. After a treatment plan is approved, the hollow needles are attached to the HDR machine and the radioactive seed is pushed automatically and systemically into each of these needles and then withdrawn when the appropriate radiation dose is delivered to the prostate. Treatment is typically delivered over several minutes. At completion, the hollow needles are withdrawn. If the therapy is being used to boost treatment, you usually get only one dose. If it is the definitive treatment, you may be given multiple doses. For patients with lower-risk cancer, or selected patients with intermediate-risk cancer, brachytherapy alone may be sufficient. However, in many cases, a combination of radiation treatments is recommended. Patients with a high-risk cancer may be advised to have HDR brachytherapy to treat the prostate and EBRT to treat the prostate and the whole pelvis. Side effects. Side effects of brachytherapy are generally similar to those associated with EBRT. Many men experience mild short-term issues, such as pain in the perineum, discolored urine (pink or bloody), difficultly starting urine flow, incomplete emptying of the bladder or increased urinary frequency. Erectile dysfunction may develop over time. A small percentage of men experience long-term side effects, which may include urinary urgency, urinary obstruction, and significant rectal or bowel irritation. Men who may want to father children in the future should consider sperm banking prior to the treatment. Both EBRT and brachytherapy increase the risk of other cancers, especially bladder and rectal cancer, starting about five to 10 years after treatment. While the risk of a second cancer is increased relative to the general population, radiation-induced cancers remain a rare serious side effect.

Radiation therapy outcomes

The effectiveness of both brachytherapy and EBRT is indicated by how much your PSA declines. The lowest level of the PSA attained is referred to as the nadir. A nadir around 0.5 ng/mL is typically expected for men undergoing EBRT with conventional fractionation, while the nadir in patients undergoing SBRT or brachytherapy is typically less than 0.5 ng/mL. It may take one to five years after radiation therapy to reach a nadir. About one-third of men who undergo brachytherapy experience a temporary rise in their PSA values six to 36 months after the procedure before the PSA resumes its decline. This "bounce" or "spike," as it's sometimes called, can be alarming, but it should not be interpreted as treatment failure. A similar spike may occur in a smaller percentage of patients who undergo EBRT, especially with SBRT. The rates for successful treatment are lower for men with higher-disease risk (increased CAPRA score), and therefore these patients generally receive hormone therapy together with radiation (often brachytherapy boost with EBRT).

Hormone therapy with radiation

Prostate cancer cells need testosterone to grow. Hormone therapy aims to drastically lower testosterone levels to slow the cancer's progression. Although it does not cure the cancer on its own, hormone therapy improves the effectiveness of radiation for high-risk disease and is often recommended in conjunction with radiation therapy for men with intermediate- or high-risk localized disease. However, hormone therapy may have significant side effects. These include loss of libido (sex drive), hot flashes (feeling hot and sweating), changes in mood or memory, loss of bone and muscle density, body fat gain, and adverse effects on sugar or cholesterol metabolism. When offered as short-term therapy in conjunction with radiation, it is often well tolerated. How long a patient should receive hormone therapy remains controversial and depends on how aggressive his cancer is.

Learn more about hormone therapy.

Combined therapies

An increasing volume of literature suggests that for men with high-risk prostate cancer, the best treatment approach may be multimodal therapy. This involves some combination of techniques – surgery, radiation therapy and systemic treatment (such as hormone therapy) – depending to an extent on the pathology report, PSA outcomes and genomic testing after surgery. The multimodal approach has become the standard of care for other aggressive cancers, such as breast and rectal cancer. Radiation or surgery or both may also be appropriate for some patients with limited metastatic disease at the time of diagnosis. When surgery and radiation are combined, it is easier and safer to perform surgery followed by radiation rather than radiation followed by surgery.

Tissue ablation and focal therapy

Tissue ablation treatments destroy the prostate cancer through freezing or heating. These treatments can be applied to all or just part of the prostate (focal ablation). Whereas whole gland ablation has largely fallen out of favor, focal ablation has gained popularity. The two most commonly used energy sources are as follows: Cryosurgery kills cancer cells in the prostate by freezing them through special needles that are inserted into the gland. The needles are placed under ultrasound guidance. This method is effective in curing cancer but can't treat lymph nodes and commonly causes erectile dysfunction if the entire prostate is treated. Urinary incontinence is a rare but possible side effect. High-intensity focused ultrasound (HIFU) uses the high temperatures created by focused sound wave energy to kill cancer cells. While HIFU results over the years have been mixed, modern systems – such the one used at UCSF – allow real-time monitoring of tissue temperatures during treatment, improving outcomes. Less commonly used ablation methods include interstitial laser ablation, electroporation (NanoKnife), vascular targeted photodynamic therapy, gold nanoparticle therapy, and others under development. Focal radiation (radiation to the tumor only) is used occasionally as well. Currently, there is little data comparing these technologies.

Who should have focal therapy?

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Candidates for focal therapy must be carefully selected, most often based on well-performed, image-guided biopsy techniques (such as MRI-ultrasound fusion technology). Patients with intermediate-grade tumors visible in a single location on imaging (ideally away from the urethra or bladder neck) may be considered for focal therapy. Low-grade cancers can be treated this way but are usually more suitable for active surveillance. Some doctors feel that cancer close to the urethra can also be treated in this fashion, but there may be a higher risk of side effects or incomplete treatment. Some feel that additional candidates for focal therapy include patients with one dominant tumor as described above and a microfocus of low-grade disease elsewhere. These smaller cancer foci are followed through active surveillance. Results of ablation therapies to date have been favorable, but the experience and time of follow-up are still limited. In addition, these patients must be evaluated carefully to avoid undertreating their cancer, and after treatment, they need to have periodic imaging, PSA assessment and at least one follow-up biopsy.

Does it matter where treatment is performed?

A large body of evidence shows that in the case of surgery for prostate cancer, surgical experience matters greatly. Medical centers and surgeons performing a high number of prostatectomies per year demonstrate better outcomes in terms of both cancer control and quality of life than those performing relatively low numbers. We don't have similar data regarding radiation outcomes, but performing brachytherapy well certainly requires expertise and experience, particularly in prostate ultrasound. Planning and administering EBRT effectively has many subtleties, which likely translate to better outcomes with more experienced doctors. No matter what the practice volume of specific surgeons or radiation oncologists, they should be able to discuss their own demonstrated outcomes both in terms of cancer control and quality of life.

When further treatment is needed

While prostate cancer diagnosis and treatment have improved significantly in recent years, the cancer can still recur. That's why it is essential that you and your doctor continue to monitor your PSA on a quarterly basis for some period of time, no matter how successful your treatment seems to be. Patients usually can consider a number of treatment options to treat or control recurrent cancer. Choosing among them requires a new decision-making process.

Why cancer recurs

Not surprisingly, studies show that the likelihood of recurrence is higher the more advanced the disease was when detected and the more time that has passed between diagnosis and treatment. Recurrence may be related to the initial treatment type, but other factors are also involved, such as the original staging, Gleason score, extent of the cancer, and patient's age. (See section on risk assessment.) Elements in recurrence may include the following: Your cancer may have been understaged (meaning that it was more extensive than originally estimated), graded too low (meaning that, once the prostate was removed, the tumor showed higher Gleason scores than in the pretreatment biopsy), or both. Staging and grading underestimates have been discovered in up to one-third of pathology studies of the entire prostate following a prostatectomy. These issues may occur with treatments other than surgery but are not always identified unless the prostate is removed. The use of more refined and advanced imaging techniques, such as multiparametric MRI and Axumin PET/CT scans, have substantially improved initial staging. Your cancer may have been undertreated. Underestimates of the stage and grade can lead to undertreatment. In addition, sometimes a patient undergoes only a single treatment method that is unlikely to be effective by itself, even though his pretreatment scores indicated a higher risk category. Surgery may not have removed all of the cancer, or radiation therapy may not have completely treated it. The cancer's biology may make it likely to recur even after the best treatment. Some cancers, for example, have already escaped to other parts of the body at a microscopic level (not detectable even with PET/CT) at the time of initial treatment.

The PSA as indicator

The most common sign that the cancer was not completely removed or is recurring after surgery or radiation therapy is a persistently rising PSA. This should not be confused with the PSA bounce some patients experience following radiation therapy. In those cases, PSA levels will fall after an initial rise. Not all patients with a persistently rising PSA will develop metastatic prostate cancer and not all patients will face the possibility of a life-threatening form of the disease. Indeed, some patients with a late, low-rising PSA may not require immediate treatment. The severity of the relapse can be determined by reviewing how soon the PSA started to rise after treatment and how quickly it is rising. This is frequently referred to as the PSA doubling time (PSADT), which is generally expressed in months.

Options for dealing with recurrence

With a persistently increasing PSA, the suspicion for recurrence increases. The most important factor in assessing your long-term outcome is determining the location of the prostate cancer cells producing the PSA. Advanced imaging techniques, such as MRI and PSMA PET/CT, are often helpful in learning where the cancer is located, and in the case of post-radiation recurrence, repeat biopsy may be required. If a man underwent surgery as an initial treatment, revisiting the post-operative pathology report may help to identify what contributed to the recurrence. If there was still cancer present (positive margins), the cancer was aggressive (higher Gleason scores were detected), or genomic profiling of the tumor showed high-risk features, several options are available:

EBRT to the prostate bed with or without the pelvis.

EBRT accompanied by hormone therapy. The duration of hormone therapy will depend on the PSA level just prior to radiation and to a lesser extent on the Gleason score and staging of the cancer. Systemic treatment using hormone therapy, other treatments for those at risk for metastatic disease, or a combination. Active surveillance if the remaining cancer appears insignificant. You and your doctor can decide whether to intervene more aggressively and, if so, when. If the cancer recurs after radiation, a salvage prostatectomy may be an option. However, when the surgery is performed after previous treatments, there is a greater likelihood of incontinence or impotence. Further radiation or cryosurgery are also options, but again entail greater risks than when radiation is used as the first-line treatment. On the other hand, cancer that recurs after focal therapy can usually be treated for cure with either prostatectomy or radiation, or in some cases, repeat focal therapy. If you're seeking additional or different approaches, you may be eligible to participate in an appropriate clinical trial (a study using human volunteers to evaluate a promising new treatment). You can research this with the help of your doctor.

Joining a clinical trial

Clinical trials are medically supervised, carefully controlled patient studies that attempt to determine whether a proposed new treatment is both safe and effective. Clinical trials also look at whether a new treatment can lead to better outcomes than existing treatments. These studies may involve researchers from a variety of disciplines, such as general medicine, medical specialties, genetics, biology, chemistry, engineering and psychology. Clinical trials are conducted at medical centers around the country, and participants are often actively recruited. New treatments are continually being developed for prostate cancer. Many prostate cancer trials are designated for patients with a rising PSA after local treatment or for those with advanced, metastatic cancers. However, there are also many trials for men with less aggressive cancer, such as the active surveillance trials at UCSF. We also conduct trials of neoadjuvant treatment, which are medications given before surgery for higher-risk prostate cancer. Several new treatments and approaches show promise – some as simple as lifestyle changes in diet and exercise. Funding sources for clinical trials include the National Cancer Institute, Department of Defense, universities and medical centers, private research foundations, pharmaceutical and biotechnology companies, and various combinations of these groups.

Clinical trials usually occur in phases:

Phase I studies determine safe and therapeutic dosage levels.

Phase II trials determine whether the new agent is beneficial.

Phase III trials extend the experimental treatment to a larger group. Results are compared with results from a control group, in which participants receive a standard therapy or a placebo. After a successful phase III trial, the new treatment will still need formal approval from the FDA for use in appropriate patients.

Participation considerations

Clinical trials can offer hope and a chance for you and society to benefit from a promising new treatment, but they have their risks. Any patient considering participating in a trial should ask himself and his treating doctor the following:

Do I fit the criteria for inclusion?

How might I benefit from participating?

What are the probable side effects?

What if I'm placed in the control group that doesn't get the treatment under evaluation? (In many trials, those receiving the placebo will cross over later on and receive the active treatment.)

How large is the control group versus the group receiving active treatment?

What happens if I quit or am dropped from the trial?

What happens if my condition gets worse while I'm in the trial?

Accessing clinical trials at UCSF

UCSF is currently conducting research in four main areas:

Identification of genetic and lifestyle factors that predispose men to clinically significant prostate cancer

Discovering alterations in genes and proteins to improve current prostate cancer treatment

Developing new therapies for men with recurrent widespread prostate cancer

Preventing progression of early-stage untreated disease

To learn more, search for a trial or contact us, visit Cancer Clinical Trials at UCSF.

Complementary and alternative medicine

There is an important distinction between complementary therapies and alternative therapies.

Complementary therapies, such as exercise and diet changes, are undertaken in addition to conventional medical treatments. Health care providers are often supportive of complementary therapies, depending on your particular situation. such as exercise and diet changes, are undertaken in addition to conventional medical treatments. Health care providers are often supportive of complementary therapies, depending on your particular situation. Alternative therapies are undertaken instead of conventional medical treatments. Some of these may be helpful for some people, but most are not well-studied and none are well-regulated. Misleading websites and false advertising abound. You should be extremely careful about choosing nonstandard treatments instead of treatments that have been evaluated in clinical trials with published results. Many therapies can fall into either category. Some interfere with standard medical treatment or cause serious side effects, so be sure to inform your doctor if you are considering any of these therapies. Lifestyle changes are likely to be helpful in both reducing the risk of getting prostate cancer and controlling its progression. UCSF is a leader in coordinating clinical trials of diet, exercise and stress in patients with prostate cancer. In addition, every prostate cancer patient treated at UCSF receives access to a nutritionist or dietitian to help in planning a healthy diet and to address dietary issues that may arise during treatment.

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