Described herein are polymeric nanoparticles that include a therapeutic agent which is 2-(3-((7-(3-(ethyl(2-hydroxyethyl)amino)propoxy)quinazolin-4-yl)amino)-1H-pyrazol-5-yl)-N-(3-fluorophenyl)acetamide (also known as AZD1152 hqpa) or a pharmaceutically acceptable salt thereof, and methods of making and using such therapeutic nanoparticles.本文描述包含2-(3-((7-(3-(乙基(2-羥乙基)胺基)丙氧基)喹唑啉-4-基)胺基)-1H-吡唑-5-基)-N-(3-氟苯基)乙醯胺(亦稱為AZD1152 hqpa)或其醫藥上可接受鹽之治療劑之聚合奈米粒子,及製造及使用此等治療性奈米粒子之方法。