CLIN CANCER RES:GDC-0425联合吉西他滨治疗难治性实体肿瘤

2017-05-25 MedSci MedSci原创

Chk1抑制剂可以增强化疗疗效。CLIN CANCER RES近期发表了一篇文章,报道了Chk1抑制剂GDC-0425联合吉西他滨治疗晚期实体瘤的Ⅰ期临床试验结果。

Chk1抑制剂可以增强化疗疗效。CLIN CANCER RES近期发表了一篇文章,报道了Chk1抑制剂GDC-0425联合吉西他滨治疗晚期实体瘤的Ⅰ期临床试验结果。

患者接受GDC-0425单药治疗或1周诱导后序贯周期21天的吉西他滨联合GDC-0425治疗。吉西他滨初始计量为750mg/m2(A组),而后增加到1000mg/m2(B组)。在1天及8天使用3+3+3递增剂量寻找最大耐受计量(MTD)。GDC-0425初始3天每天连续注射。根据药代动力学及耐受性控制计量。检测肿瘤组织中的TP53突变。治疗期的肿瘤组织活检分析药效学的分子标志。共40例患者接受GDC-0425治疗。吉西他滨1000mg/m2治疗后GDC-0425的最大耐受计量为60mg。计量限制毒性包括血小板减少(5),中性粒细胞减少(4),呼吸困难,恶心,发热,晕厥以及丙氨酸转氨酶水平升高(各1例)。常见的不良反应为恶心(48%),贫血、中性粒细胞减少、呕吐(各45%),疲劳(43%),发热(40%)以及血小板减少(35%)。GDC-0425半衰期约为15个小时。在1例三阴性乳腺癌(TP53突变)以及1例黑色素瘤中出现局部反应,在1例未知来源的肿瘤中出现不确定局部反应。

文章最后认为,Chk1抑制剂GDC-0425联合吉西他滨骨髓抑制较轻,耐受性良好。该研究结果尚需进一步试验证实。

原始出处:
Jeffrey R.Infante,Antoine Hollebecque,et al.Phase ⅠStudy of GDC-0425,a Checkpoint Kinase 1 Inhibitor,in Combination with Gemcitabine in Patients with Refractory Solid Tumors.CLIN CANCER RES.May 2017 doi:10.1158/1078-0423.CCR-16-1782

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    2017-06-26 1e145228m78(暂无匿称)

    学习了,谢谢作者分享!

    0

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    2017-05-27 weiz
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    2017-05-27 freve
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    2017-05-26 txqjm

    谢谢了,学习

    0

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    2017-05-25 1ddf0692m34(暂无匿称)

    学习了,谢谢分享

    0