Therapeutic Strategies for the Treatment of Metastatic Melanoma - What is New is Old
Therapeutic Strategies for the Treatment of Metastatic Melanoma - What is New is Old
Published: October 2008
Unfortunately, the incidence of cutaneous melanoma continues to increase over time in both men and women. While some investigators suggest that the increase is related to changes in diagnostic criteria, the parallel increase in melanoma death rate supports that the increase in incidence is real. The cause for the higher melanoma incidence remains elusive, but may have to do with increasing outdoor activity and a decrease in the Earth's ozone layer.
While the melanoma etiologic pathways are critical in developing prevention strategies, the increase in this disease has propelled melanoma into the sixth most common cancer and a significant cause for death of patients in their prime of life. Metastatic disease remains a formidable hurdle for oncologists today.
The prognosis of a patient with melanoma is primarily related to the depth of invasion into the skin as measured by Breslow thickness (T-stage), whether regional nodal spread is present (N-stage), and whether distant metastases have developed (M-stage).Within the group of patients with distant disease, the prognosis is determined by the site and burden of metastases.Patients with distant skin, subcutaneous or nodal metastases only (M1a) have a median survival of 12.8 months; patients with lung metastases (M1b) have an 11.8-month median survival; and patients with visceral metastases or elevation of lactate dehydrogenase (LDH) (M1c) have a 7.8-month median survival. Metastatic melanoma arising from the choriod of the eye (the second most common site for melanomas to develop) has an even poorer response to treatment than metastases arising from primary skin location, suggesting that choriodal melanomas have a different clinical biology and should be considered a separate disease.
Simple wide excision of the primary site is curative when cutaneous melanomas are found early and have a shallow depth of invasion. Unfortunately, once distant metastases have developed,therapeutic options are limited and those available have had little impact on survival except in a small minority of patients.
Those treatments that do provide durable remissions in a small minority of patients are typically associated with a high likelihood of serious adverse events including a risk of death. Therefore, an open discussion of expectations, risk, and benefits with the patient and their family is an important first step in setting the stage for intervention.
As with other types of cancer that have limited treatment possibilities, participation in clinical trials designed to evaluate new therapeutic strategies should be considered as a first-line option. Many new treatment strategies being evaluated in phase II and randomized phase III studies are available through national cooperative groups or through the National Cancer Institute's Clinical Trials Program and may be accessible in the community oncologist office. If not, referral to a melanoma center should be considered.
Current standard therapy for metastatic melanoma includes chemotherapy, biotherapy, and bio- chemotherapy. These treatments have never been tested against best supportive care, making it difficult to form firm conclusions about clinical benefit. Since the 1970s, numerous phase II studies have identified several alkylating agents with activity, most notably dacarbazine (DTIC) and carmustine (BCNU). DTIC has an objective response rate of 19%, with a median duration of response of four months. The six-year survival for metastatic melanoma patients treated with DTIC is less than 2%.Temozolomide (TMZ), an oral alkylating agent, is chemically converted in the body to monomethyl triazenoimidazole carboxamide (MTIC), the active metabolite in DTIC. By virtue of being oral, TMZ allows exploration of low dose chronic administration. One advantage of this approach is the ability to modulate O (6)- methylguanine-DNA methyltransferase, one of the major resistant pathways for this class of alkylating agents. Of note is the observation that TMZ induces significant changes in peripheral blood helper T-cell status, resulting in an increased risk of opportunistic infections. The exploratory studies with TMZ have not yet been confirmed in larger multicenter trials. In a randomized study comparing fotemustine, a third generation nitrosurea, and DTIC, fotemustine was associated with a slightly higher response rate compared with DTIC (15% versus 7.2%) and a 1.6- month survival advantage.
2. Kirkwood J M and Ernstoff M S,ýThe role of interferon in the management of melanomaý, (Nathanson L., ed) In: Management of Advanced Melanoma, Churchill Livingstone, Inc., New York, NY 1986.
3. Hill G J 2nd, Moss S E, Golomb F M, Grage T B, Fletcher W S and Minton J P,ýKrementz ET. DTIC and combination therapy for melanoma: IIIý, DTIC (NSC 45388) Surgical Adjuvant Study COG PROTOCOL 7040. Cancer (1981), 47 (11): pp. 2,556ý2,562.
4. Middleton M R, Grob J J,Aaronson N, Fierlbeck G,Tilgen W, Seiter S, Gore M,Aamdal S, Cebon J, Coates A, Dreno B, Henz M, Schadendorf D, Kapp A,Weiss J, Fraass U, Statkevich P, Muller M and Thatcher N, ýRandomized phase III study of temozolomide versus dacarbazine in the treatment of patients with advanced metastatic malignant melanomaý, J. Clin. Oncol.
(2000), 18 (1): pp. 158ý166.
5. Aamdal S,Avril M D, Grob J J J, Hauschild A, Mohr P, Bonerandi J J,Weichenthal M, Neuber K, Bieber T, Gilde K, Guillem Porta V, Fra J, Bonneterre M E, Saiag P, Kamanabrou D, Pehamberger H, Sufliarsky J and Gonzalez Larriba J L,ýA Phase III Randomized Trial of Fotemustine (F) versus Dacarbazine (DTIC) in Patients with Disseminated Malignant Melanoma with or without Brain Metastasesý, Proc ASCO (2002), 21: p. 1361a.
6. Chapman P B, Einhorn L H, Meyers M L, Saxman S, Destro A N, Panageas K S, Begg C B,Agarwala S S, Schuchter L M, Ernstoff M S, Houghton A N and Kirkwood J M,ýPhase III multicenter randomized trial of the Dartmouth regimen versus dacarbazine in patients with metastatic melanomaý, J. Clin. Oncol. (1999), 17 (9): pp. 2,745ý2,751.
7. Legha S S, Ring S, Eton O, Bedikian A, Buzaid A C, Plager C and Papadopoulos N,ýDevelopment of a biochemotherapy regimen with concurrentadministration of cisplatin, vinblastine, dacarbazine, interferon alfa, and interleukin-2 for patients with metastatic melanomaý, J. Clin. Oncol. (1998), 16 (5): pp. 1,752ý1,759.
8. Falkson C I, Ibrahim J, Kirkwood J M, Coates A S, Atkins M B and Blum R H, ýPhase III trial of dacarbazine versus dacarbazine with interferon alpha-2b versus dacarbazine with tamoxifen versus dacarbazine with interferon alpha-2b and tamoxifen in patients with metastatic malignant melanoma: an Eastern Cooperative Oncology Group studyý, J. Clin. Oncol.
(1998), 16 (5): pp. 1,743ý1,751.
9 Eton O, Legha S S, Bedikian A Y, Lee J J, Buzaid A C, Hodges C, Ring S E, Papadopoulos N E, Plager C, East M J, Zhan F and Benjamin R S, ýSequential biochemotherapy versus chemotherapy for metastatic melanoma: results from a phase III randomized trialý, J. Clin. Oncol. (2002), 20 (8): pp. 2,045ý2,052.
Therapeutic Strategies for the Treatment of Metastatic Melanoma: What is new is old B USINESS BRIEFING: US ONCOLOGY REVIEW 2004 4 10. Ridolfi R, Chiarion-Sileni V,Guida M, Romanini A, Labianca R, Freschi A, Lo Re G, Nortilli R, Brugnara S,Vitali P and Nanni O,ýItalian Melanoma Intergroup. Cisplatin, dacarbazine with or without subcutaneous interleukin-2, and interferon alpha- 2b in advanced melanoma outpatients: results from an Italian multicenter phase III randomized clinical trialý, J. Clin. Oncol.
(2002), 20 (6): pp. 1,600ý1,607.
11. Rosenberg S A,Yang J C, Schwartzentruber D J, Hwu P, Marincola F M,Topalian S L, Seipp C A, Einhorn J H,White D E and Steinberg S M,ýProspective randomized trial of the treatment of patients with metastatic melanoma using chemotherapy with cisplatin, dacarbazine, and tamoxifen alone or in combination with interleukin-2 and interferon alfa-2bý, J. Clin. Oncol. (1999), 17 (3): pp. 968ý975.
13. McDermott D F, Mier J W and Lawrence D P,ývan den Brink MR. Clancy MA. Rubin KM.Atkins MB.A phase II pilot trial of concurrent biochemotherapywith cisplatin, vinblastine, dacarbazine, interleukin 2, and interferon alpha-2B in patients with metastatic melanomaý, Clinical Cancer Research (2000), 6 (6): pp. 2,201ý2,208.
14. Proebstle T M, Fuchs T, Scheibenbogen C, Sterry W and Keilholz U,ýLong-term outcome of treatment with dacarbazine, cisplatin, interferon-alpha and intravenous high dose interleukin-2 in poor risk melanoma patientsý, Melanoma Research (1998), 8 (6): pp. 557ý563.
15. Vaughan M M, Moore J, Riches P G, Johnston S R,AýHern R P, Hill M E, Eisen T,Ayliffe M J,Thomas J M and Gore M E,ýGM-CSF with biochemotherapy(cisplatin, DTIC, tamoxifen, IL-2 and interferon-alpha): a phase I trial in melanomaý, Ann.
Oncol. (2000), 11 (9): pp. 1,183ý1,189.
16. Lopez M, Carpano S, Cavaliere R, Di Lauro L, Ameglio F, Vitelli G, Frasca A M, Vici P, Pignatti F and Rosselli M, ýBiochemotherapy with thymosin alpha 1, interleukin-2 and dacarbazine in patients with metastatic melanoma: clinical and immunological effectsý, Ann. Oncol. (1994), 5 (8): pp. 741ý746.
17. Antoine E C, Benhammouda A, Bernard A,Youssef A, Mortier N, Gozy M, Nizri D,Auclerc G, Rocher M A, Soubrane C L, Weil M and Khayat D, ýSalpetriere Hospital experience with biochemotherapy in metastatic melanomaý, Clinical Cancer Journal From Scientific American, (!997), 3 Suppl 1: S16ý21.
18. Margolin K A, Liu P Y, Unger J M, Fletcher W S, Flaherty L E, Urba W J, Hersh E M, Hutchins L E, Sosman J A, Smith J W, Weiss G R and Sondak V K,ýPhase II trial of biochemotherapy with interferon alpha, dacarbazine, cisplatin and tamoxifen in metastatic melanoma: a Southwest Oncology Group trialý, J. Cancer Research Clin.Oncol.(1999), 125 (5): pp. 292ý296.
19. Gibbs P, Iannucci A, Becker M,Allen J, OýDriscoll M, McDowell K,Williams P, Rosse P, Murphy J and Gonzalez R,ýA phase II study of biochemotherapy for the treatment of metastatic malignant melanomaý, Melanoma Research (2000), 10 (2): pp.
171ý179.
20. OýDay S J, Gammon G, Boasberg P D, Martin M A, Kristedja T S, Guo M, Stern S, Edwards S, Fournier P,Weisberg M, Cannon M, Fawzy N W, Johnson T D, Essner R, Foshag L J and Morton D L,ýAdvantages of concurrent biochemotherapy modified by decrescendo interleukin-2, granulocyte colony-stimulating factor, and tamoxifen for patients with metastatic melanomaý, J. Clin. Oncol. (1999), 17 (9): pp. 2,752ý2,761.
21. Atkins M B, OýBoyle K R, Sosman J A,Weiss G R, Margolin K A, Ernest M L, Kappler K, Mier J W, Sparano J A and Fisher R I,ýMultiinstitutional phase II trial of intensive combination chemoimmunotherapy for metastatic melanomaý, J. Clin. Oncol.
12 (8): pp. 1,553ý1,560.
22. Khayat D, Antoine E, Rixe O,Tourani J M,Vuillemin E, Borel C, Benhammouda A,Thill L, Franks C and Auclerc G, ýChemoimmunotherapy of metastatic malignant melanoma.The Salpetriere Hospital (SOMPS) experienceý, Eur. J. Cancer (1993), 29A Suppl 5: S2ý5.
Specialities:
- 18 August 2010
- 12 September 2010
- 15 September 2010






