Clinical study of apatinib in the treatment of stage IV osteogenic sarcoma after failure of chemotherapy

Zhichao Liao, Ting Li, Chao Zhang, et al

Abstract


Objective: To analyze the efficacy and safety of apatinib in the treatment of stage IV osteogenic sarcoma after chemotherapy failurethrough a single-arm, prospective, and open clinical phase II study.

Methods: Information on 34 patients with stage IV osteogenic sarcoma treated with apatinib after failure of chemotherapy in TianjinMedical University Cancer Institute and Hospital between September 2015 and December 2019 was collected and analyzed. Theparticipants included 23 males and 11 females, with an average age of 35.24 years (11–73 years). The objective response rate (ORR),disease control rate (DCR), progression-free survival (PFS), PFS rate (PFR), and overall survival (OS) were evaluated. The treatmentrelatedadverse events (AEs) and safety of apatinib were also evaluated.

Results: Of the 34 patients, 33 were able to be evaluated for efficacy. One patient received apatinib treatment for less than one cycle;therefore, only safety analysis was performed. The 12-week clinical evaluation showed that 2 patients had a partial response (PR),24 patients had stable disease (SD), and 7 patients had progressive disease (PD). The ORR, DCR, and PFR at 12 weeks were 6.06%(2/33), 78.79% (26/33), and 82%, respectively. By the end of the follow-up, 6 patients had SD (18.18%, 6/33), 27 patients had PD(81.82%, 27/33), and 15 patients died because of disease progression (45.45%, 15/33). The ORR was 0 (0/33), the DCR was 18.18%(6/33), and the median PFS (mPFS) was 7.89 months (95% CI: 4.56–11.21). The median OS (mOS) was 17.61 months (95% CI:10.85–24.37). The most common treatment-related AEs were hand-foot syndrome (35.29%, 12/34), proteinuria (32.35%, 11/34),and hypertension (32.35%, 11/34).

Conclusions: Apatinib is effective and well tolerated in stage IV osteogenic sarcoma patients after chemotherapy failure.

Cite this article as: Liao Z, Li T, Zhang C, Liu X, Xing R, Teng S, et al. Clinicalstudy of apatinib in the treatment of stage IV osteogenic sarcoma afterfailure of chemotherapy. Cancer Biol Med. 2020; 17: 501-512. doi: 10.20892/j.issn.2095-3941.2019.0397


Keywords


Apatinib; osteogenic sarcoma; progression-free survival; safety

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