Tag Archives: API

Why Measure Particle or Droplet Distribution in Process or Development?

After last week’s introduction to liquid dosage formulations, I wanted to follow-up with: why measure the particle or droplet distribution in process or in development? Continue reading

What are Liquid Dosage Formulations?

Often, I hear questions surrounding what are liquid dosage formulations.  I thought I might take the opportunity to provide a short introduction to liquid dosage formulations.  Liquid dosage formulations may be in the form of suspensions or syrups, metered dosed inhalers (MDIs), or creams or lotions. All of these systems would typically have particles present or droplets present in their formulations. There could also be parentals, such as injections or intravenous infusions, which may be particle free. Continue reading

在线监测颗粒粉碎过程–EMS和IIPF

我最近有幸与一组非常有才华的在EMS和国际医药研究院(IIPF)工作的科学家们合作。EMS和IIPF是位于巴西Sao Paulo 西南面约一百英里的Hortolândia城市的两家制药公司。我们做了一个很有意思的项目,在原料药(API)的湿磨过程中用FBRM跟踪颗粒径的减小。传统上人们用离线激光衍射来跟踪这一工艺过程,但是这种方法被证明既费时又不准确还有潜在人身危害。

颗粒粉碎过程通过用FBRM原位跟踪颗粒的裂碎与磨碎过程,该研究组可以实时识别出每一釜湿磨的目标终点。他们还与离线激光衍射分析数据进行了关联,并得出结论“在线FBRM的使用不仅确保了一致的产品指标还使工艺过程时间降到最短”。而且,通过揭示其材料的裂碎动力学,他们得到了对工艺过程的重要理解。这种信息可以用来确保工艺放大和技术转手的成功。

与Andre Rosa, Fabiana Ribeiro 和Jose Martins (IIPF) 以及Renato Carneiro 和Ettamyr Catteli (EMS)一起进行这一项目非常愉快。他们起草了一个应用短文:在线监测用高剪切力混合器进行颗粒粉碎的过程。要得到FBRM与离线颗粒测量技术(如激光衍射、过筛)之间的关联方面的详细信息,请查看我同事Eric Dycus的 FBRM®与工艺效率和产品质量直接关联的网络研讨会

Online Monitoring Particle Milling – EMS and IIPF

I recently had the pleasure of collaborating with a group of very talented scientists at EMS and International Institute of Pharmaceutical Research (IIPF).  EMS and IIPF are two pharmaceutical companies based in Hortolândia, a city roughly 100 miles northwest of Sao Paulo, Brazil. We worked on an interesting project where FBRM was used to track Active Pharmaceutical Ingredient (API) particle size reduction during wet milling. Traditionally, offline laser diffraction had been used to track this process; however this approach proved to be time consuming, prone to inaccuracy and potentially hazardous. Continue reading

辉瑞是如何帮助实验科研人员改进工艺过程开发的

EasyMax at Pfizer

Marty Guinn博士, 辉瑞

辉瑞药疗化学开发部主任Marty Guinn博士近来给出以下描述:

“生产率、重复性、和可信度对我们是重要的。根据我们的经验,EasyMax满足所有的要求,它并且为实验科研人员要改进工艺过程开发效率打开了自动化潜力之门。目前,我们的化学家与工程师们天天都在将EasyMax用于进行早期和后期工艺过程开发的各种各样应用上。我们正在积极地把基本的EasyMax分布给具体使用者,同时随着他们的信心和创造性的提升容许他们逐个地升级到更先进的系统。我们已经建立了数多‘走上式’(walk-up) EasyMax工作台,每个工作台通过iControl 操作控制数台EasyMax系统以便让工艺过程化学家门进行DoE(实验设计)实验。”

身为辉瑞药疗化学开发部主任, Guinn博士管理着工艺过程化学技术组和结晶技术组。工艺过程化学技术组进行高通量平行实验和DoE实验,同时使用先进的工艺过程研究技术(ReactIR、连续流动化学、等)来支持早期原料药(API)工艺过程开发以及临床实验需求。结晶技术组为寻找适合的药型进行盐型和多晶型筛选,同时为提供原料药(API)开发过硬的结晶工艺过程。