A rapid method for creating drug implants: translating laboratory-based methods into a scalable manufacturing process.

A rapid method for creating drug implants: translating laboratory-based methods into a scalable manufacturing process.
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一种创建药物植入物的快速方法:将基于实验室的方法转化为可扩展的制造过程。

DOI:
10.1002/jbm.b.31617
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发表时间:
2010
期刊:
Journal of biomedical materials research. Part B, Applied biomaterials
影响因子:
--
通讯作者:
Siegel,StevenJ
Siegel,StevenJ
中科院分区:
--
文献类型:
--
作者:
Wang,Cheng-Kuo;Wang,Wan-Yi;Meyer,RobertF;Liang,Yuling;Winey,KarenI;Siegel,StevenJ

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服药依从性差是精神分裂症治疗效果不佳的主要原因。虽然生产可手术植入的溶剂浇铸丸粒以通过增加对药物的依从性来改善结果,但该过程费力且耗时,抑制了其更广泛的应用(Siegel等人,Eur J Pharm Biopharm 2006;64:287-293)。在这项研究中,以前的制造过程被转化为连续和可扩展的挤出方法。挤出工艺进行了修改的基础oninvitrorelease研究,载药量一致性检查,并使用扫描电子显微镜的表面形态分析。然后将优化的氟哌啶醇植入大鼠体内进行生物相容性的初步分析。机筒温度、螺杆转速和由此产生的加工压力影响表面形态和药物释放。数据表明,较少的表面孔将机制从本体降解转移到表面PLGA降解,并且滞后期较长。结果表明,挤出是一种可行的生产抗精神病药物植入物的方法。© 2010 Wiley Periodicals,Inc. J Biomed Mater Res Part B:Appl Biomater,2010.
Low compliance with medication is the major cause of poor outcome in schizophrenia treatment. While surgically implantable solvent‐cast pellets were produced to improve outcome by increased compliance with medication, this process is laborious and time‐consuming, inhibiting its broader application (Siegel et al., Eur J Pharm Biopharm 2006;64:287–293). In this study, the previous fabrication process was translated to a continuous and scalable extrusion method. Extrusion processes were modified based onin vitrorelease studies, drug load consistency examination, and surface morphology analysis using scanning electron microscopy. Afterward, optimized haloperidol implants were implanted into rats for preliminary analysis of biocompatibility. Barrel temperature, screw speed and resulting processing pressure influenced surface morphology and drug release. Data suggest that fewer surface pores shift the mechanism from bulk to surface PLGA degradation and longer lag period. Results demonstrate that extrusion is a viable process for manufacturing antipsychotic implants. © 2010 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2010.
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