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Cancer Biother Radiopharm. 2005 Jun;20(3):280-9.

Dose-dependent treatment benefit in high-risk melanoma patients receiving adjuvant high-dose interferon alfa-2b.

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1
Department of Oncology, Fachklinik Hornheide at the University of Münster, Münster, Germany. micheal.fluck@fachklinik-hornheide.de

Abstract

This retrospective analysis of 150 consecutive high-risk melanoma patients treated with high-dose interferon alfa-2b at a single institution demonstrates similar relapse-free and overall survival data, as previously published from Eastern Cooperative Oncology Group (ECOG) and Intergroup trials. The data suggest at least a transient dose dependency of the treatment effect on relapse-free and overall survival with high-dose interferon in high-risk melanoma patients.

BACKGROUND:

Adjuvant high-dose interferon seems to be the best adjuvant treatment option for patients with high-risk melanoma (AJCC-stage IIC, III) after definitive surgery.

METHODS:

One-hundred fifty consecutive patients were treated at our institution during the period from September 1997 to March 2003 were retrospectively studied.

RESULTS:

After a median follow-up of 35 months, 63% of patients had developed a melanoma relapse, and 37% were relapse- free. Fifty-five percent of patients are still alive, and 45% had died-all but 3 patients from melanoma. Patients with stage IIC disease demonstrated a similar unfavorable course of disease as patients with stage IIIC disease (2-year relapse-free survival 18% and 26%). We identified two groups of patients with different cumulative interferon dose-levels (> or =90% and <90% of the projected dose, according to the protocol), who demonstrated at least transient differences, both in terms of relapse-free and overall survival; the predictive impact was statistically independent upon the Cox regression analysis.

CONCLUSIONS:

Our clinical data are consistent with the published ECOG and Intergroup data dealing with highdose interferon in high-risk melanoma patients. The data suggest a dose-dependency on the treatment effect and, therefore, support further prospective trials comparing different dose-distribution patterns in high-dose interferon.

PMID:
15989473
DOI:
10.1089/cbr.2005.20.280
[Indexed for MEDLINE]
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