Kaposi's sarcoma medical therapy: Difference between revisions

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:* Matrix metalloproteinases
:* Matrix metalloproteinases


Kaposi's sarcoma is not curable, in the usual sense of the word, but it can often be effectively palliated for many years and this is the aim of treatment. In KS associated with [[immunodeficiency]] or [[immunosuppression]], treating the cause of the immune system dysfunction can slow or stop the progression of KS. In 40% or more of patients with [[AIDS]]-associated Kaposi's sarcoma, the Kaposi lesions will shrink upon first starting highly active antiretroviral therapy ([[HAART]]).  However, in a certain percentage of such patients, Kaposi's sarcoma may again grow after a number of years on HAART, especially if [[HIV]] is not completely suppressed. Patients with a few local lesions can often be treated with local measures such as radiation therapy or [[cryotherapy]]. Surgery is generally not recommended as Kaposi's sarcoma can appear in wound edges.
===Therapies===
*Local therapy:
**Topical treatment: This is the treatment to put medicine directly on the lesions.
**[[Cryosurgery]]: During this procedure, the doctor use a probe cooled with liquid nitrogen to freeze the lesions.
**Intralesional chemotherapy: In this procedure, the chemotherapy drug is injected directly into the Kaposi's sarcoma lesions.
*Radiation therapy: This is a cancer treatment to kill cancer cells or keep them from growing by using high-energy x-rays or other types of radiation.
*Chemotherapy: More widespread disease, or disease affecting internal organs, is generally treated with systemic therapy with [[interferon]] alpha, [[liposomal]] [[anthracycline]]s (such as Doxil) or [[paclitaxel]].
*Biologic therapy: This treatment uses chemicals such as interferon alpha to help the immune system attack cancer cells.
===Antimicrobial Regimen===
* '''Human herpesvirus 8 (KSHV)'''
:* 1. '''Mild to moderate Kaposi sarcoma'''<ref>{{ cite web | title = Guidelines for Prevention and Treatment of Opportunistic Infections in HIV-Infected Adults and Adolescents | url = https://aidsinfo.nih.gov/contentfiles/lvguidelines/AdultOITablesOnly.pdf }}</ref>
::* Preferred regimen: initiate or optimize ART
:* 2. '''Advanced Kaposi sarcoma (ACTG Stage T1, including disseminated cutaneous or visceral Kaposi sarcoma)'''
::* Preferred regimen: chemotherapy (per oncology consult) {{and}} ART
:* 3. '''Primary effusion lymphoma'''
::* Preferred regimen: chemotherapy (per oncology consult) {{and}} ART
::* Note: [[Valganciclovir]] PO or [[Ganciclovir]] IV can be used as adjunctive therapy.
:* 4. '''Multicentric Castleman's disease'''
::* Preferred regimen (1): [[Valganciclovir]] 900 mg PO bid for 3 weeks
::* Preferred regimen (2): [[Ganciclovir]] 5 mg/kg IV q12h for 3 weeks
::* Preferred regimen (3): [[Valganciclovir]] 900 mg PO BID {{and}} [[Zidovudine]] 600 mg PO q6h for 7–21 days
::* Alternative regimen: [[Rituximab]] 375 mg/m2 given weekly for 4–8 weeks (may be an alternative to or used adjunctively with antiviral therapy)


==References==
==References==

Revision as of 19:02, 21 January 2016

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Overview

Patients with Kaposi's sarcoma have many treatment options. The selection depends on the stage of the tumor. The options are local therapy, radiation therapy, chemotherapy, biologic drugs treatment, or a combination of these methods. Before treatment starts, ask your health care team about possible side effects and how treatment may change your normal activities. Because cancer treatments often damage healthy cells and tissues, side effects are common. Side effect may not be the same for each person, and they may change from one treatment session to the next.

Medical Therapy

  • The optimal therapy for Kaposi's sarcoma depends on multiple factors which include:[1]
  • The anatomical location of the tumor
  • The specific variant of Kaposi's sarcoma
  • The rate of distribution and progression of Kaposi's sarcoma lesions
  • The patients clinical presentation
  • The efficacy and potential side effects of therapy
  • The presence or absence of HIV infection
  • The degree of immune suppression,
  • The presence of other comorbidities
  • The degree of host immune competence
  • The preference and prognosis of the patients
  • Management strategies varies depending on the specific variant of Kaposi's sarcoma such as:
  • Classic Kaposi's sarcoma managemenet may range from no treatment to either radiotherapy, local therapeutic interventions, or surgical excision.
  • Iatrogenic Kaposi's sarcoma management focuses on modifying immunosuppressive therapy in addition to local therapeutic interventions.
  • Endemic Kaposi's sarcoma is primarily manage by systemic chemotherapy
  • There is no curative treatment for epidemic Kaposi's sarcoma; the mainstay management is HAART therapy which aims for the palliation and control of Kaposi's sarcoma progression.
  • Local/regional therapy recommended for the management of Kaposi's sarcoma patients may include:
  • Surgical excision
  • Cryotherapy
  • Sclerotherapy
  • Intralesional vinca-alkaloids, bleomycin, and interferon-alpha
  • Topical 0.1% alitretinoin
  • Imiquimod cream
  • Radiotherapy
  • Laser therapy
  • HAART therapy regimens recommended for the management of Kaposi's sarcoma patients may include:
  • Non nucleoside reverse transcriptase (NNRT)-based therapy
  • Protease Inhibitor (PI)-based therapy
  • Chemotherapy regimens recommended for the management of Kaposi's sarcoma patients may include:
  • Liposomal anthracyclins
  • Paclitaxel
  • Oral etoposide
  • Doxorubicin AND bleomycin AND vincristine
  • Doxorubicin AND bleomycin AND vinblastine
  • Immune modulators recommended for the management of Kaposi's sarcoma patients may include:
  • Interferon-alpha
  • Targeted therapies recommended for the management of Kaposi's sarcoma patients may include:
  • Antiherpes therapy
  • Angiogenic inhibitors (e.g., thalidomide)
  • VEGF inhibitors
  • Tyrosine kinase inhibitors
  • Matrix metalloproteinases


References

  1. ↑ Fatahzadeh M (2012). "Kaposi sarcoma: review and medical management update". Oral Surg Oral Med Oral Pathol Oral Radiol. 113 (1): 2–16. doi:10.1016/j.tripleo.2011.05.011. PMID 22677687.

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