Bladder cancer medical therapy: Difference between revisions

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* [[Radiation therapy]] may be the main treatment for people who can’t have surgery.
* [[Radiation therapy]] may be the main treatment for people who can’t have surgery.


* [[External beam radiation therapy]]
* [[External beam radiation therapy]] is the type of radiation treatment that is most often used to treat bladder cancer.
:* It is the type of radiation treatment that is most often used to treat bladder cancer.


* Palliative radiation therapy
* Palliative radiation therapy may be given to relieve symptoms caused by advanced bladder cancer.
:* It may be given to relieve symptoms caused by advanced bladder cancer.


==References==
==References==

Revision as of 15:18, 9 October 2015

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Steven C. Campbell, M.D., Ph.D.

Overview

The predominant therapy for bladder cancer is surgical resection. Adjunctive chemotherapy, radiation therapy, and immunotherapy may be required.

Medical Therapy

Immunotherapy

  • Immunotherapy is a type of biological therapy that uses the immune system to help destroy cancer cells.[1]
  • Bacillus Calmette–Guérin (BCG)
  • Immunotherapy by intravesicular delivery of Bacillus Calmette–Guérin (BCG) is often used to treat and prevent the recurrence of superficial tumors.[2]
  • BCG is a vaccine against tuberculosis that is prepared from attenuated live Mycobacterium bovis, that has lost its virulence in humans. BCG immunotherapy is effective in up to 2/3 of the cases at this stage, and in randomized trials has been shown to be superior to standard chemotherapy.[3]
  • The mechanism by which BCG prevents recurrence is unknown, but the presence of bacteria in the bladder may trigger a localized immune reaction which clears residual cancer cells.[4]

Chemotherapy

  • During intravesical chemotherapy, the drugs are placed into the bladder through a urinary catheter.
  • Intravesical chemotherapy may be given instead of BCG or if the bladder cancer doesn’t respond to BCG.
  • Mitomycin is the drug most often used in intravesical chemotherapy.
  • Systemic chemotherapy
  • During systemic chemotherapy, the drugs are given intravenously.
  • Systemic chemotherapy may be a treatment option for bladder cancer that has spread to other tissues near the bladder and bladder cancer that has spread to other parts of the body.
  • Chemotherapy is recommended before a radical cystectomy (called neoadjuvant chemotherapy) for many people with bladder cancer that has grown into the muscle layer of the bladder wall. It is also often given after a radical cystectomy (called adjuvant chemotherapy) to people with high-risk features such as cancer that has spread to lymph nodes.

Radiation therapy

  • Palliative radiation therapy may be given to relieve symptoms caused by advanced bladder cancer.

References

  1. Bladder Cancer. Canadian Cancer Society 2015. http://www.cancer.ca/en/cancer-information/cancer-type/bladder/treatment/?region=ab Accessed on October, 7 2015
  2. Alexandroff AB, Jackson AM, O'Donnell MA, James K (May 1999). "BCG immunotherapy of bladder cancer: 20 years on". Lancet. 353 (9165): 1689–94. doi:10.1016/S0140-6736(98)07422-4. PMID 10335805.
  3. Lamm, Donald L.; Blumenstein, Brent A.; Crawford, E. David; Montie, James E.; Scardino, Peter; Grossman, H. Barton; Stanisic, Thomas H.; Smith Jr, Joseph A.; Sullivan, Jerry; Sarosdy, Michael F.; Crissman, John D.; Coltman, Charles A. (1991). "A Randomized Trial of Intravesical Doxorubicin and Immunotherapy with Bacille Calmette–Guérin for Transitional-Cell Carcinoma of the Bladder". New England Journal of Medicine. 325 (17): 1205–9. doi:10.1056/NEJM199110243251703. PMC 1164610. PMID 1922207.
  4. Bacillus Calmette-Guerin (BCG) for Bladder Cancer
  5. Bladder Cancer. Canadian Cancer Society 2015. http://www.cancer.ca/en/cancer-information/cancer-type/bladder/treatment/?region=ab Accessed on October, 7 2015

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