Article
作者: Lv, Dongqing ; Zhuang, Pengpeng ; Hu, Xichun ; Zheng, Song ; Li, Qingshan ; Yuan, Xia ; Sheng, Lili ; Xu, Hongjie ; Yi, Tienan ; Dai, Xiumei ; Zhao, Mingchuan ; Hu, Changlu ; Zeng, Aiping ; Yu, Yan ; Jiang, Ou ; Wang, Jingfen ; Sun, Hongmei ; Hu, Baihui ; Dou, Changlin ; Shi, Huaqiu ; Chen, Zhendong ; Yang, Weihua ; Peng, Peijian ; Su, Zhaoping ; Bi, Minghong ; Wang, Xicheng ; Ni, Mingli ; Zhou, Ming ; Hou, Zhe ; Lei, Kaijian
Introduction:Denosumab (Xgeva®) is a standard treatment for the prevention of skeletal-related events (SREs) in patients with bone metastases (BM). This trial was designed to assess the equivalence of LY01011 to denosumab in terms of efficacy and safety.
Materials and methods:Eligible patients with BM from solid tumors were randomized at a 1:1 ratio to receive 120 mg of LY01011 or 120 mg of denosumab subcutaneously every four weeks during a 12-week double-blind treatment period, and then all enrolled patients continued to receive LY01011 until week 53. The primary endpoint was the natural logarithm of change of the urinary N-terminal crosslinked telopeptide of type I collagen level normalized to the urine creatinine level (uNTX/uCr) at week 13 from baseline. Other endpoints included the uNTX/uCr ratio, serum bone-specific alkaline phosphatase level alteration, status of anti-drug antibodies and neutralizing antibodies, adverse events and SREs.
Results:850 eligible patients were randomized into the LY01011 group (n = 424) or the denosumab group (n = 426). The least-squares means (SEs) of the natural logarithms of the changes in the uNTX/uCr ratios at week 13 from baseline were -1.810 (0.0404) in the LY01011 group and -1.791 (0.0406) in the denosumab group. The LSM difference [90 % CI] between two arms was -0.019 [-0.110, 0.073] within the equivalence margins (-0.135, 0.135) and met the predetermined primary endpoint. The AEs, ADAs and the PK data showed no statistically significant difference.
Conclusions:This study demonstrated the equivalent efficacy and safety of LY01011 to denosumab in patients with BM.