Journal
CANCER MEDICINE
Volume 8, Issue 4, Pages 1368-1378Publisher
WILEY
DOI: 10.1002/cam4.1931
Keywords
clinico-pathological characteristics; long-term survivors; metastatic sarcomas; prognostic factors; soft tissue sarcomas
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BackgroundMetastatic soft tissue sarcomas (STS) are a group of rare and heterogeneous mesenchymaltumors with a poor prognosis. The aim of this study was to evaluate the incidence of long-term survivors and describe their presentation and management in a large cohort of patients with metastatic STS. MethodsWe collected information of patients with metastatic STS managed in Centre LeonBerardbetween 1985 and 2015 aiming to compare the group of patients alive 5years after the diagnosis of metastases vs the others. Prognostic factors of patients and tumors characteristics were investigated by logistic regression analysis. For long-term survivors, we explored therapeutic strategies at metastatic stage. ResultsOut of 436 patients enrolled, 39 (9%) were still alive 5years after diagnostic of metastases with a median survival of 146months (12years). This long-term survivors group included more female and younger patients, with better performance status, more synovial sarcoma or endometrial stromal sarcoma, more patients with simple genomic sarcomas, lower tumor grade, smallertumor, and longer disease-free interval. In multivariate analysis, age below 55 at metastatic stage (P=0.0002) andgrade 1tumor (P<0.0001) were significantly associated with the long-term survivors. Their therapeutic management was usually aggressive (intensified or polychemotherapy, repeated local treatment of metastases), leading to 62% of complete response in first-line setting. ConclusionsVery long-term survivors are observed in metastatic STS. Selection of patients in good condition with less aggressive tumor and administration of intensive treatment may lead to obtain these motivating results in a poor prognosis disease.
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