Treatment FAQ

what virus do they use for bladder cancer treatment

by Lillie Baumbach Jr. Published 3 years ago Updated 2 years ago
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Bacillus Calmette-Guerin or BCG is the most common intravesical immunotherapy for treating early-stage bladder cancer. It's used to help keep the cancer from growing and to help keep it from coming back. BCG is a germ that's related to the one that causes tuberculosis (TB), but it doesn't usually cause serious disease.Jan 30, 2019

Full Answer

What is the best treatment for noninvasive bladder cancer?

Chemotherapy or radiation therapy may also be recommended. Each type of treatment has potential benefits and side effects to consider. Your doctor will help you work through your options and decide on the best treatment for you. BCG has been used to treat noninvasive bladder cancer for a long time.

What is the best chemotherapy drug for bladder cancer?

Chemotherapy drugs commonly used for bladder cancer include Mutamycin (mitomycin), Gemzar (gemcitabine), or Valstar (valrubicin). 1 BCG treatment is a form of immunotherapy for non-muscle invasive bladder cancer.

Can vpm1002 prevent recurrence of bladder cancer?

A clinical study with patients suffering from cancer of the bladder has now shown that a therapy with VPM1002 could successfully prevent the recurrence of tumors in almost half of the patients who had not responded previously to the BCG therapy.

Does Mycobacterium brumae inhibit bladder cancer growth?

Noguera-Ortega E, Secanella-Fandos S, Eraña H, et al. Nonpathogenic mycobacterium brumae inhibits bladder cancer growth in vitro, ex vivo, and in vivo. Eur Urol Focus. 2015;2(1):1-67-76. doi:10.1016/j.euf.2015.03.003 [PubMed] [CrossRef] [Google Scholar]

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What kind of viruses are used as a cancer treatment?

There is currently one oncolytic virus therapy approved by the FDA for the treatment of cancer: T-VEC (Imlygic®): a modified herpes simplex virus (HSV) that infects tumor cells and promotes their destruction; approved for subsets of patients with melanoma.

What is the most common treatment for bladder cancer?

Transurethral resection (TURBT) is often done first to find out how far the cancer has grown into the bladder wall. Chemotherapy followed by radical cystectomy (removal of the bladder and nearby lymph nodes) is then the standard treatment.

How long does BCG treatment stay in your system?

BCG can remain in urine for 6 hours after your treatment, so each time you urinate, you should bleach the toilet in your home to neutralize the vaccine.

What is Mitomycin-C for bladder cancer?

Mitomycin-C is a type of antibiotic that is only used in cancer therapy. It slows or stops the growth of cancer cells in your body. Mitomycin-C is a clear blue or purple liquid. For the therapy, we put this liquid into the bladder using a catheter (tube).

What's new in bladder cancer treatment?

In July 2020, the FDA approved the immune checkpoint inhibitor avelumab (Bavencio) for people with advanced bladder cancer that has shrunk or stopped growing after chemotherapy using a platinum-based drug.

What is the main cause of bladder cancer?

Smoking. Smoking is the single biggest risk factor for bladder cancer. This is because tobacco contains cancer-causing (carcinogenic) chemicals. If you smoke for many years, these chemicals pass into your bloodstream and are filtered by the kidneys into your urine.

What are side effects of BCG treatment?

Common side effects of BCG include needing to urinate more often; burning or pain when urinating; blood in the urine; a mild fever; and tiredness. These side effects usually last a couple of days after each BCG treatment session. Less often, the BCG may spread through the body and can affect any organ.

What are the long term side effects of BCG treatment?

Commonly reported side effects of bcg include: urinary tract infection, detrusor hyperreflexia of bladder, fever, hematuria, urinary frequency, urinary urgency, vomiting, chills, and malaise. Other side effects include: arthralgia. See below for a comprehensive list of adverse effects.

What's the side effects of BCG?

What SIDE EFFECTS can this medicine cause?swollen lymph nodes.small red areas at the site of injection. (These usually appear 10-14 days after injection and slowly decrease in size. They should disappear after about 6 months.)fever.blood in the urine.frequent or painful urination.upset stomach.vomiting.

What is the difference between Mitomycin and Mitomycin-C?

Mitomycin-C and MTC are other names for Mitomycin. In some cases, health care professionals may use the trade name Mutamycin or other names Mitomycin-C and MTC when referring to the generic drug name Mitomycin. Drug type: Mitomycin-C is an anti-cancer ("antineoplastic" or "cytotoxic") chemotherapy drug.

How successful is Mitomycin?

Whether patients received BCG or mitomycin there were no differences in the risk of progression to more invasive cancer or in overall survival. With a median follow-up of 64 months, the disease-free survival for all patients was 42%.

What happens if you touch Mitomycin?

* Contact can irritate the skin and eyes. * High exposure may cause poor appetite, fever, nausea, headache, fatigue and drowsiness. * Repeated contact can cause severe eye damage. * Repeated high exposure may affect the liver, kidneys and blood cells.

What is the name of the virus that is genetically modified to reproduce in cancer cells without harming healthy cells?

Known as oncolytic viruses, this group includes viruses found in nature as well as viruses modified in the laboratory to reproduce efficiently in cancer cells without harming healthy cells. To date, only one oncolytic virus— a genetically modified form of a herpesvirus for treating melanoma —has been approved by the Food and Drug Administration ...

What is the name of the poliovirus that is used to kill cancer cells?

At the Duke Cancer Institute, Dr. Gromeier and his colleagues have been testing an engineered poliovirus, called PVS-RIPO, in patients with glioblastoma. When the research began in the mid-1990s, Dr. Gromeier viewed oncolytic viruses primarily as agents for killing cancer cells. His thinking changed, however, as PVS-RIPO was tested in patients, ...

How do viruses work?

Some viruses work primarily by killing tumor cells, whereas others work by directing local or systemic immune responses, he explained. Nonetheless, “there was a consensus at the meeting that even for directly oncolytic therapies, there probably is an important immune component to the response,” he added.

How many investigators discussed microbes in cancer?

At the NCI meeting about using microbes as cancer therapies last year, more than 350 investigators discussed many topics, including the need to better understand how infectious agents interact with tumors and with components of the immune system.

Where did the Maraba virus come from?

In the second study, researchers tested the Maraba virus, which was originally isolated from a species of sand fly in Brazil, as a way to sensitize tumors to immunotherapy in a mouse model of triple-negative breast cancer.

What happens when a cancer cell bursts?

When a virus infects a tumor cell, the virus makes copies of itself until the cell bursts. The dying cancer cell releases materials, such as tumor antigens, that allow the cancer to be recognized, or “seen,” by the immune system.

Does T-VEC cause immune response?

In some patients receiving the therapy, tumors that could not be injected have shrunk, suggesting that T-VEC can generate a systemic immune response, noted Howard Kaufman, M.D., of the Rutgers Cancer Institute of New Jersey. “The oncolytic virus kills tumor cells and causes the release of danger signals, which help to generate an immune response,” ...

The Early-Stage Bladder Cancer Treatment

Jennifer Welsh is a Connecticut-based science writer and editor with over ten years of experience under her belt. She’s previously worked and written for WIRED Science, The Scientist, Discover Magazine, LiveScience, and Business Insider.

Who Can Use BCG?

BCG is a treatment for early-stage bladder cancer that has not yet invaded the muscle of the bladder wall. Called non-muscle invasive bladder cancers (NMIBCs) or in situ bladder cancers, these account for about half of all bladder cancers. 3

What to Expect During BCG Treatment

First, make sure you haven’t had any fluids for four hours before the treatment. Right before you go into the treatment room your doctor or nurse will have you empty your bladder. 2

How to Prepare

To prepare for the BCG treatment, your doctor will likely have you undergo surgery to remove any visible cancer in the bladder. The surgery is called transurethral resection of bladder tumor (TURBT) and is usually done about two weeks before BCG therapy.

When to See a Doctor

There are a few side effects that can be especially dangerous, so make sure to talk to your doctor if you notice that you: 2

Other Treatments for Bladder Cancer

For many early-stage bladder cancers, BCG is the best option for treatment. Other treatments for bladder cancer include:

Summary

BCG treatment is a form of immunotherapy for non-muscle invasive bladder cancer. It is administered into the bladder through a catheter. It then activates the body's immune system to attack the cancer cells.

How does immunotherapy work?

Immunotherapy works by encouraging a person’s immune system to attack and destroy cancer cells. Intravesical means that the treatment specifically targets the bladder. Using a catheter, a healthcare professional will administer BCG into a person’s bladder in the form of a liquid drug.

What is the treatment for bladder cancer?

Bacillus Calmette–Guerin is a form of immunotherapy that doctors can use to treat some forms of bladder cancer. Following surgery to remove the cancer, this treatment can help prevent the cancer from returning.

How long can you live with stage 1 bladder cancer?

as likely as people without it to live for at least 5 years following diagnosis. Doctors typically use BCG immunotherapy to treat stage 0 and stage 1 bladder cancer. The 5-year relative survival rate for people with stage 0 bladder cancer is 95.4 percent. Trusted Source.

How long do you have to hold your urine before you empty your bladder?

A person will then need to hold their urine for 2 hours before emptying their bladder. BCG is a type of bacterium. For several hours following the procedure, a person will need to take precautions when urinating to prevent passing the bacterium to other people.

How to keep liquid in bladder?

The healthcare professional will then either cap or remove the catheter to keep the liquid inside the bladder for a period of time. They may then ask the person to lay on their back and rotate from side to side. This movement helps the liquid reach all parts of the bladder.

What is a catheter in a urethra?

A catheter is a flexible tube that professionals can pass through the urethra into the bladder. This method of delivery allows the drug to come into direct contact with the cancer cells in the bladder. This causes the immune system to target them and not other parts of the body.

How long do you have to hold your urine for BCG?

During the treatment, a person will need to hold their urine for around 2 hours. After this, the healthcare professional will ask the individual to empty their bladder. The BCG drug contains live bacteria that a person can pass to other people.

How does a BCG catheter work?

A urinary catheter is inserted through your urethra and into your bladder. Then the BCG solution is injected into the catheter. The catheter is clamped off so the solution stays in your bladder. Some doctors may remove the catheter at this time. You have to hold the medicine in your bladder.

How long does it take for a bladder catheter to unclamp?

You’ll be instructed to lie on your back and to roll from side to side to make sure the solution reaches your entire bladder. After about two hours, the catheter is unclamped so the fluid can be drained. If the catheter was already removed, you’ll be asked to empty your bladder at this time.

What is the procedure called to remove bladder cancer?

It usually follows a procedure called transurethral resection of bladder tumor (TURBT). It’s intended to help prevent recurrence. This treatment only affects cells inside the bladder. It’s not useful for later stage bladder cancer that has spread into or beyond the bladder lining, or to other tissues and organs.

How to get rid of BCG in men?

Disinfect the urine by adding 2 cups of bleach into the toilet. Let it stand for about 20 minutes before flushing. You should also wash your genital area very carefully after you urinate, so your skin doesn’t become irritated from the BCG. Wash your hands thoroughly, too. Men can pass BCG to their partner during sex.

How long after BCG treatment can you have sex?

Men can pass BCG to their partner during sex. For that reason, you should avoid sex for 48 hours after each treatment. Use a condom between treatments and for six weeks following your final treatment. Women should avoid getting pregnant or breastfeeding while on BCG therapy.

What to do before BCG?

Tell your doctor about all the medications you take. Certain immunosuppressants, antimicrobial therapies, and radiation therapies can interfere with BCG treatment. You’ll be advised to limit your fluid intake for four hours prior to ...

Can you have more than one cancer treatment?

how well you tolerate certain treatments. Cancer treatment usually involves more than one type of therapy, which can be given at the same time or one at a time. That makes it difficult to compare one treatment to another.

What is modified tuberculosis?

Modified tuberculosis vaccine as a therapy for bladder cancer. Bacteria of the weakened tuberculosis vaccine strain (BCG) inside a macrophage, a phagocyte of the immune system. Credit: MPI for Infection Biology - CF Microscopy / Volker Brinkmann. The human immune system can recognize and eliminate not only germs but also cancer cells.

How long does it take for a bladder tumor to flush?

During this treatment, the bladder is repeatedly flushed with the weakened germ over a period of six weeks.

Why did the tumor shrink in the 19th century?

At the end of the 19th century, doctors observed that the tumor in some cancer patients shrank if the patients suffered from a bacterial infection with a high fever. These findings sparked interest in immunotherapy for cancer. Immunomodulatory treatments can specifically stimulate the immune system. As a result, the body's own immune system is ...

Can the immune system eliminate cancer cells?

The human immune system can recognize and eliminate not only germs but also cancer cells. This is why treatments with weakened germs can help the immune system in its fight against cancer. Researchers at the Max Planck Institute for Infection Biology in Berlin have genetically modified the tuberculosis vaccine BCG in a way ...

Does the immune system fight cancer?

As a result, the body's own immune system is supported in its fight against the tumor, leading to a reduction in the size of the tumor. The tuberculosis vaccine Bacille Calmette-Guérin (BCG) that was introduced back in the 1920s contains weakened pathogens of bovine tuberculosis, which can also be transmitted to humans.

Can you flush with BCG after cancer treatment?

Nevertheless, the share of patients who have managed to fully overcome cancer after the BCG therapy is low. Furthermore, flushing with BCG has serious side-effects such as fever, incontinence or flu-like symptoms, so that many patients discontinue the therapy prematurely. However, the tumor returns in 30 to 40 percent of such treated patients.

Can VPM1002 prevent bladder cancer?

A clinical study with patients suffering from cancer of the bladder has now shown that a therapy with VPM1002 could successfully prevent the recurrence of tumors in almost half of the patients who had not responded previously to the BCG therapy .

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A Modern Approach to An Old Idea

The First Fda-Approved Oncolytic Virus Therapy

  • The first oncolytic virus to receive FDA approval was a treatment for melanoma known as talimogene laherparepvec (Imlygic®), or T-VEC. The treatment, which is injected into tumors, was engineered to produce a protein that stimulates the production of immune cells in the body and to reduce the risk of causing herpes. In some patients receiving the t...
See more on cancer.gov

Investigating Interactions with The Immune System

  • At the NCI meeting about using microbes as cancer therapies last year, more than 350 investigators discussed many topics, including the need to better understand how infectious agents interact with tumors and with components of the immune system. The biological mechanisms used by viruses to kill tumors depend on various factors, including the virus, the target tissue or cell, and which biological pathways are targeted, according to Phi…
See more on cancer.gov

Using Viruses to Enhance The Body’S Immune Response

  • One of the challenges for researchers now is to try to enhance the immune response to the tumor through a variety of strategies, including by combining oncolytic virus therapy and immunotherapy. The promise of this approach has been demonstrated in two early-phase clinical trials. Patients with melanoma who received T-VEC plus a type of immunotherapy known as a checkpoint inhibitor had higher response ratesthan those who receive…
See more on cancer.gov

A New Way of Delivering Viruses

  • Most oncolytic virus therapies have been tested in patients with melanoma or brain tumors, and most treatments have been given as injections into tumors. Two new studies highlight efforts to expand the number of cancer types treated with oncolytic virus therapies as well as the methods of delivery. One of the studies found that an oncolytic virus delivered intravenously could cross the blood–brain barrier and enter brain tumors, killing tumor c…
See more on cancer.gov

Testing A Modified Form of Poliovirus Against Brain Tumors

  • At the Duke Cancer Institute, Dr. Gromeier and his colleagues have been testing an engineered poliovirus, called PVS-RIPO, in patients with glioblastoma. When the research began in the mid-1990s, Dr. Gromeier viewed oncolytic viruses primarily as agents for killing cancer cells. His thinking changed, however, as PVS-RIPO was tested in patients, and his team noticed clinical changes associated with immune responses in the patients. “Fro…
See more on cancer.gov

Investigating The Mechanisms of Oncolytic Virus Therapy

  • To learn more about the mechanisms by which poliovirus therapy attacks tumor cells, the Duke researchers recently conducted experiments in cancer cell lines and in mice. They found that cancer cells infected with PVS-RIPO released tumor antigens and other materialthat activated immune cells called dendritic cells and induced an immune response against the cancer cells. “In the mouse model, we showed that a poliovirus could induce a T-c…
See more on cancer.gov

Future Research Questions and Priorities For The Field

  • As oncolytic viruses are tested in clinical trials, researchers will try to learn which patients are likely to respond. “We need biomarkers to help develop effective combination therapies and to select patients who are most likely to benefit from certain combinations,” said Dr. Nair. Another challenge for the field will be to use the knowledge gained from the melanoma clinical trials to develop treatments for patients with other types of tumors, Dr. Ches…
See more on cancer.gov

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