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Lancet. 1995 Mar 4;345(8949):540-3.

Randomised trial of hyperthermia as adjuvant to radiotherapy for recurrent or metastatic malignant melanoma. European Society for Hyperthermic Oncology.

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Danish Cancer Society Department of Experimental Clinical Oncology, Aarhus.


The value of hyperthermia as an adjuvant to radiotherapy in patients with malignant melanoma was studied in a European multicentre trial. 134 metastatic or recurrent lesions of malignant melanoma in 70 patients were randomly assigned to receive radiotherapy (three fractions of 8 Gy or 9 Gy in 8 days) alone or followed by hyperthermia (43 degrees C for 60 min). Overall, the 2-year actuarial local tumour control was 37 (SE 5)%. Univariate analysis showed a beneficial effect of hyperthermia (radiation alone 28% vs combined treatment 46%, p = 0.008) and radiation dose (24 Gy 25% vs 27 Gy 56%, p = 0.02), but no effect of tumour size (< or = 4 cm 42% vs > 4 cm 29%, p = 0.21). Cox multivariate regression analysis showed the most important prognostic variables to be hyperthermia (odds ratio for 2-year local control 1.73 [95% CI 1.07-2.78], p = 0.023), tumour size (0.91 [0.85-0.99], p = 0.05), and radiation dose (1.17 [1.01-1.36], p = 0.05). Addition of heat did not significantly increase acute or late radiation reactions. Heating was well tolerated, but because of difficulties with equipment only 14% of treatments achieved the protocol objective. The overall 5-year survival rate was 19%, but 38% of the patients for whom all known disease was controlled survived 5 years. Adjuvant hyperthermia significantly improved local tumour control when applied in association with radiation in treatment of malignant melanoma. Successful local treatment of patients with a single or a few metastatic malignant melanoma lesions has significant curative potential.

[Indexed for MEDLINE]

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