期刊
CANCER MEDICINE
卷 10, 期 21, 页码 7593-7600出版社
WILEY
DOI: 10.1002/cam4.4286
关键词
anlotinib; bone sarcoma; progression-free survival; safety
类别
Anlotinib shows promising antitumor activity in unresectable or metastatic bone sarcoma patients, with similar objective response rate and progression-free survival to other targeted drugs in different subtypes of sarcoma. Adverse events were generally mild and well-tolerated. Further studies are needed to explore the efficacy of anlotinib in specific subtypes of bone sarcoma.
Background Tyrosine kinase inhibitors (TKIs) such as cabozantinib, regorafenib have demonstrated encouraging activity in prolonging progression-free survival (PFS) in several bone sarcoma entities in prospective clinical trials. This retrospective study aims to analyze the safety and efficacy of anlotinib, a novel multi-target TKI, in patients with locally unresectable or metastatic bone sarcoma at three institutions. Methods Patients with advanced bone sarcoma administered anlotinib 12 mg once daily, 2 weeks on/1 week off, from June 2018 to June 2020, until disease progression or intolerance of treatment. The primary endpoints were objective response rate (ORR) and PFS. Results Forty-eight patients were analyzed: 27 have osteosarcoma, 9 have chondrosarcoma, 8 have Ewing's sarcoma, and 3 have chordoma. The median age was 24 years (range, 16-68 years), and the median number of prior regimens was 1 (range, 0-4). Until the final follow-up, five patients obtained a partial response and while 24 achieved stable disease. The ORR in all patients was 10.4%, and the median PFS was 4.6 months, with a progression-free rate (PFR) at 3 months and 6 months of 72.9% and 35.4%, respectively. The ORR and median PFS varied much among tumor subtypes. The most frequent grade 3-4 adverse events (AEs) were pneumothorax, hand-foot syndrome, cholesterol elevation, hypertriglyceridemia, and fatigue. No patients died from anlotinib-related AEs during the study period. Conclusions Anlotinib may show promising antitumor activity in unresectable or metastatic bone sarcoma. The ORR and median PFS of anlotnib are similar to those of other targeted drugs in different subtypes of sarcomas. The AEs were generally mild and tolerated well. Further studies of anlotinib in selected subtypes of bone sarcoma are needed.
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