生物活性: Tidutamab (XmAb-18087) is a humanized and affinity-optimized bispecific antibody (bsAb) targeting SSTR2 binding domain and T-cell binding domain (CD3). Tidutamab possesses a full Fc domain to maintain long serum half-life.Tidutamab eliminates SSTR+ tumor cells by stimulating redirected T cellmediated cytotoxicity (RTcC).
体内研究: Tidutamab (XmAb-18087; 3 mg/kg; i.p.; 单次注射) 在 NSG 小鼠中刺激人 T 细胞杀伤 SSTR2+ A549 肺癌肿瘤。Animal Model:NSG mice
Dosage:3 mg/kg
Administration:Intraperitoneal injection; single dose
Result:lnduced anti-tumor activity in human PBMC-engrafted NSG mice.
体外研究: Tidutamab (XmAb-18087; 0-100000 ng/mL)与人 SSTR2+ CHO 细胞结合,ED50 值为 2.2 μg/mL,并介导 T 细胞杀伤 SSTR2+ 靶细胞。