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Kessel, K.A. ; Deichl, A.* ; Gempt, J.* ; Meyer, B.* ; Posch, C.* ; Diehl, C.* ; Zimmer, C.* ; Combs, S.E.

Outcomes after stereotactic radiosurgery of brain metastases in patients with malignant melanoma and validation of the melanoma molGPA.

Clin. Transl. Oncol., DOI: 10.1007/s12094-021-02607-8 (2021)
Verlagsversion DOI
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
INTRODUCTION: Malignant melanoma is the third most common primary in the diagnosis of brain metastases. Stereotactic radiosurgery (SRS) is a well-established treatment option in limited brain disease. We analyzed outcomes of SRS with a particular focus on the graded prognostic assessment (GPA, melanoma molGPA), prognostic factors, and toxicity. METHODS: We evaluated 173 brain metastases in 83 patients with malignant melanoma. All were treated with SRS median dose of 20 Gy prescribed to the 80 or 100% isodose line between 2002 and 2019. All patients were followed-up regularly, including contrast-enhanced brain imaging as well as clinical examination, initially 6 weeks after treatment, then in quarterly follow-up. RESULTS: The median age was 61 years (range 27-80); 36 female and 47 male patients were treated. After a median follow-up of 5.7 months, median OS (overall survival) was 9.7 months 95%-KI 4.7-14.7). LC (local control) at 6 months, 12, 24 months was 89%, 86%, and 72%, respectively (median was not reached). Median DBC (distant brain control) was 8.2 months (95%-KI 4.7-11.7). For OS, a KPS ≥ 80%, a positive BRAF mutation status, a small PTV (planning target volume), the absence of extracranial metastases, as well as a GPA and melanoma molGPA > 2 were prognostic factors. In the MVA, a small PTV and a melanoma molGPA > 2 remained significant. CONCLUSION: The present survival outcomes support the use of the disease-specific melanoma molGPA as reliable prognostic score. Favorable outcomes for SRS compared to other studies were observed. In the treatment of brain metastases of malignant melanoma patients, a multidisciplinary approach consisting of surgery, SRS, chemotherapy, and immunotherapy should be considered.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Brain Metastases ; Gpa ; Melanoma ; Prognostic Factors ; Radiosurgery ; Srs; Gamma-knife Radiosurgery; Renal-cell Carcinoma; Graded Prognostic Assessment; Phase-ii Trial; Open-label; Combined Nivolumab; Survival; Management; Dabrafenib; Determinants
ISSN (print) / ISBN 1699-048X
e-ISSN 1699-3055
Verlag Springer
Verlagsort Gewerbestrasse 11, Cham, Ch-6330, Switzerland
Begutachtungsstatus Peer reviewed
Förderungen Projekt DEAL