Fc优化的HER2单抗Margetuximab治疗胃癌,获得FDA授予孤儿药称号

2020-06-07 MedSci原创 MedSci原创

MacroGenics公司宣布,美国食品药品监督管理局(FDA)为其靶向HER2的单抗margetuximab,授予了孤儿药称号(ODD)以治疗胃和胃食管连接处癌。

MacroGenics公司宣布,美国食品药品监督管理局(FDA)为其靶向HER2的单抗margetuximab,授予了孤儿药称号(ODD)以治疗胃和胃食管连接处癌。

Margetuximab是靶向HER2的Fc工程单克隆抗体。HER2在乳腺癌、胃食管癌和其他实体瘤中的肿瘤细胞中表达。Margetuximab设计用于阻断HER2的作用,并具有与曲妥珠单抗相似的HER2结合和抗增殖作用。此外,通过MacroGenics的Fc优化技术,对Margetuximab进行了改造,以增强其免疫作用。

图片来源:https://seekingalpha.com

Margetuximab目前正在2/3阶段临床试验MAHOGANY中(NCT04082364),评价其与免疫检查点抑制剂,有/无化学疗法联合,作为HER2阳性胃癌(GC)或胃食管连接处癌(GEJ)患者一线疗法的潜力。

MacroGenics总裁兼首席执行官Scott Koenig博士说:“我们很高兴FDA授予margetuximab孤儿地位。我们相信针对HER2的免疫增强抗体,有可能改善胃癌或胃食管连接处癌患者现有治疗标准的临床活性。”

胃癌或胃食管连接处癌统称为胃食管腺癌。根据美国癌症协会的数据,2020年,美国将诊断出约27600例新的胃癌病例,并将有11000多人死于该病。GC和GEJ癌症通常都诊断时即为晚期,因此预后很差,5年生存率为5-20%。化学疗法是一线治疗的标准治疗方法,约20%的肿瘤HER2阳性患者可以与曲妥珠单抗联合使用。

原始出处:

https://www.firstwordpharma.com/node/1730388?tsid=4

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    2020-12-04 gujh
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    2020-10-16 snf701207
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