科研之友
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摘要
<jats:p> e22500 </jats:p><jats:p> Background: Osteosarcoma is the most common malignant tumor of bone that displays hyperproliferative characteristics and high vascularity, making vascular endothelial growth factor receptors (VEGFRs) become promising targets. Apatinib, a tyrosine kinase inhibitor targeting VEGFR-2, shows anti-cancer effects against a broad range of malignancies. This study reported the clinical experience of apatinib in osteosarcoma. Methods: We collected the medical data of osteosarcoma cases who received apatinib for at least one month in our hospital. The objective response rate (ORR), disease control rate (DCR), and 6-month progression-free survival (PFS) and overall survival (OS) rates were evaluated, and the safety profile was observed. The cut-off date of analysis was 01/17/2017. Results: Between May 2015 and Nov 2016, a total of 34 cases received apatinib with informed consent (4 as neoadjuvant, 1 as neoadjuvant and first line, 10 as first line, 15 as second line and 4 as third line). Among them, 18 (52.9%) cases suffered from pulmonary metastases before apatinib administration; 29 (85.3%) patients had an Eastern Cooperative Oncology Group performance status of 1–2. Initial dosages of 250, 425, and 500 mg/d were given to 5 (14.7%), 3 (8.8%), and 26 (76.5%) cases, respectively. Dosage adjustment occurred in only 8 (23.5%) patients. The median duration was 5.9 months (95%CI, 4.5–9.4 months). According to RECIST v1.1, complete response, partial response, stable disease and progressive disease were achieved in 1 (2.9%), 6 (17.6%), 25 (73.5%) and 2 (5.9%) patients, respectively. The ORR was 20.5%, and the DCR was 94.1%. Patients with pulmonary metastases showed a relatively better response to apatinib, as the ORR and DCR were 33.3% and 88.9%, respectively. As for safety analysis, the most 3 common adverse events (AEs) were hand-foot syndrome (HFS) (29, 85.3%), diarrhea (16, 47.1%), and decreased appetite (9, 26.5%). Nine grade III AEs were occurred including 3 HFS, 2 hypertension, 1 diarrhea, 1 oral mucositis, 1 proteinuria and 1 serious peeling. Conclusions: Apatinib seems to be effective in treating osteosarcoma with acceptable safety profile. Perspective clinical studies with adequate sample size are required to validate our results. </jats:p>
- 出版日期2017-5-20
- 单位四川大学
