一种基于模型的方法,利用体外数据从一开始就支持剂量选择:免疫瘤学中双特异抗体的框架
Javier Sánchez1,2, Christina Claus3, Rosmarie Albrecht3
1Roche Pharma Research and Early Development (pRED), Roche Innovation Center Basel, Basel, Switzerland.
CPT: pharmacometrics & systems pharmacology
|November 15, 2023
概括
FAP-4-1BBL是一种双特异性抗体,向与癌症相关的纤维细胞,以特别激活瘤内的T细胞. 数学建模为最大治疗复合体形成提供了最佳剂量范围,有助于临床试验设计.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 纤维细胞激活蛋白 (FAP) 在与癌症相关的纤维细胞上表达.
- 4-1BB刺激是T细胞介导的抗癌免疫的一个有希望的机制.
- 双特异性抗体提供了有针对性的治疗方法.
研究的目的:
- 描述FAP-4-1BBL的药理学,这是一个针对FAP和4-1BB的双特异性抗体.
- 确定FAP-4-1BBL剂量与三元复合物形成之间的关系.
- 为了预测FAP-4-1BBL与cibisatamab结合的最佳临床剂量策略.
主要方法:
- 在体外实验数据与数学建模的整合.
- FAP-4-1BBL的药理学特征.
- 对最大三复合体形成的临床剂量范围的前景预测.
主要成果:
- 涉及FAP-4-1BBL,FAP和4-1BB的三元复合体形成是瘤特异性T细胞激活的关键.
- 临床剂量在2至145毫克的FAP-4-1BBL之间可以达到最大的三元复合体形成.
- 数学建模有助于预测剂量反应关系,考虑药物动力学变异性和FAP表达.
结论:
- 基于体外数据的数学建模对于选择FAP-4-1BBL的剂量非常有价值.
- 在临床试验中预测明确的剂量反应关系可能需要大量的患者队列,因为生物变异性.
- FAP-4-1BBL显示出瘤特异性T细胞激活的潜力,需要进一步的临床研究.
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