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Background  To describe patient and tumor characteristics, treatments, and survival among older adults in the United States with advanced soft-tissue sarcoma (STS), across and by categories of specifically defined histologic subtypes.    Methods  We conducted a retrospective cohort analysis using the SEER. The study population comprised patients ≥ 65 years old with advanced STS (excluding osteosarcoma, Kaposi sarcoma, and gastrointestinal stromal tumors) diagnosed from January 1, 2001 to December 31, 2011.    Results  Of 4274 study patients, 2103 (49.2%) were male. Mean age was 77.8 years, and 1539 (36.0%) had distant disease at initial diagnosis. The most common histologic categories were leiomyosarcoma (922[21.6%]), undifferentiated pleomorphic sarcoma (652[15.3%]), and liposarcoma (554[13.0%]). Overall, 1227 (28.7%) patients received first-line systemic therapy. Among these patients, 325 (26.5%) received docetaxel plus gemcitabine and 231 (18.8%) received doxorubicin alone. Only 476 patients received second-line therapy (11.1%), most commonly doxorubicin alone (n = 101). Median overall survival (95% confidence interval) from advanced STS diagnosis was 8.9 (8.3, 9.7) months.    Conclusions  Although previous studies of younger populations reported anthracycline-based therapy predominated in first line, our study of older advanced STS patients found that docetaxel plus gemcitabine was most commonly used. Despite variation by histologic category, prognosis remains poor for older adult patients with advanced STS.    Electronic supplementary material  The online version of this article (10.1186/s13569-018-0094-x) contains supplementary material, which is available to authorized users.

Treatment patterns and survival among older adults in the United States with advanced soft-tissue sarcomas