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    • 46. 发明申请
    • METHODS FOR DETERMINING PATIENT RESPONSE TO ANTI-PLATELET AGGREGATION THERAPY
    • 确定患者反应性抗肿瘤药治疗的方法
    • WO2013013228A1
    • 2013-01-24
    • PCT/US2012/047763
    • 2012-07-20
    • INVITROX, INC.GABRIEL, Don
    • GABRIEL, Don
    • G01N33/68G01N15/14A61K31/4353A61P7/02G01N33/49
    • G01N33/86A61K31/4365G01N15/1459G01N33/49G01N2015/0053G01N2015/1493
    • Diagnostic methods for determining whether an individual will benefit from a particular anti-thrombotic therapeutic agent are disclosed. The methods involve obtaining a biological sample that comprises platelets, from a patient who has been pre-administered a particular therapeutic agent, which is an antagonist of a receptor associated with the biochemical pathways involved in platelet aggregation, and exposing the platelets to an agonist of the receptor. If the antagonist is ineffective, the platelets will eject microparticles, will have a different size distribution than platelets not exposed to the agonist, and will experience a change in their surface charge. In one embodiment, the diagnostic methods involve using single particle optical sizing techniques to determine the presence of such ejected microparticles, or a change in platelet size due to its activation by the agonist. In another embodiment, electrophoretic quasi-elastic light scattering techniques are used to determine the presence of a change in surface charge on the platelets. Once an effective therapeutic agent, or an effective dosage of such therapeutic agent, has been identified, the patient can begin therapy knowing that the agent will be effective.
    • 公开了用于确定个体是否将受益于特定抗血栓形成治疗剂的诊断方法。 该方法包括获得包含血小板的生物样品,该血小板已经预先给予特定治疗剂的患者,所述治疗剂是与参与血小板聚集的生物化学途径相关的受体的拮抗剂,并将血小板暴露于 受体。 如果拮抗剂无效,则血小板将排出微粒,与不暴露于激动剂的血小板具有不同的尺寸分布,并且将经历其表面电荷的变化。 在一个实施方案中,诊断方法包括使用单粒子光学尺寸测定技术来确定这种喷射的微粒的存在,或由于其被激动剂活化而导致的血小板大小的变化。 在另一个实施方案中,使用电泳准弹性光散射技术来确定血小板上表面电荷变化的存在。 一旦确定了有效的治疗剂或这种治疗剂的有效剂量,患者可以开始治疗,知道该药剂将是有效的。