Open AccessSurvival outcomes in an older US population with advanced melanoma and central nervous system metastases: SEER‐Medicare analysis
Author(s) -
Sadetsky Natalia,
Hernandez Alexandra,
Wallick Chris J.,
McKenna Edward F.,
Surinach Andy,
Colburn Dawn E.
Publication year - 2020
Publication title -
cancer medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.403
H-Index - 53
ISSN - 2045-7634
DOI - 10.1002/cam4.3256
Subject(s) - medicine , radiosurgery , radiation therapy , melanoma , confidence interval , chemotherapy , brain metastasis , central nervous system , oncology , population , metastasis , retrospective cohort study , cancer , environmental health , cancer research
Background Central nervous system (CNS) metastasis is common in advanced melanoma patients. New treatment options have improved overall prognosis, but information is lacking for patients with CNS metastases. We investigated treatment patterns and survival outcomes in older melanoma patients with and without CNS metastases. Methods A retrospective analysis of SEER‐Medicare, a population‐based linked database, was undertaken in patients aged > 65 years with advanced melanoma diagnosed from 2004 to 2011 and followed until 2013. Results A total of 2522 patients were included. CNS metastases were present in 24.8% of patients at initial metastatic diagnosis; 16.5% developed CNS metastases during follow‐up. Chemotherapy was the most common treatment regardless of CNS metastases. Overall survival (OS) was better for patients without CNS metastases (median, 9.5 months; 95% confidence interval [CI], 8.8‐10.2) vs patients with CNS metastases (3.63 months; 95% CI, 3.4‐3.9). Among patients with CNS metastases, median OS for targeted therapy, immunotherapy, and chemotherapy was 6 (95% CI, 2.5‐9.6), 5.5 (95% CI, 3.8‐7.5), and 4.5 (95% CI, 3.8‐5.4) months, respectively, vs 2.4 (95% CI, 2.1‐2.7) and 2.1 (95% CI, 1.8‐2.7) months for local radiotherapy and no treatment, respectively. Stereotactic radiosurgery demonstrated higher OS vs whole‐brain radiation therapy (median, 4.98 [95% CI, 3.5‐7.5] vs 2.4 [95% CI, 2.1‐2.7] months). Conclusion Patients with CNS metastases from melanoma remain a population with high unmet medical need despite recent advances in treatment. Systemic treatments (eg, BRAF‐targeted therapy and immunotherapy) and stereotactic radiosurgery demonstrated meaningful but modest improvements in OS. Further explorations of combinations of radiotherapy, BRAF‐targeted therapies, and immunotherapies are needed.