In-Vitro Comparison of Physical Characteristics, Enzyme Content, and Release Kinetics of Pancreatic Enzyme Preparations Available in Europe and Canada.

IF 2.2 4区 医学 Q3 PHARMACOLOGY & PHARMACY
Sven Hartmann, Jonas Rosendahl, Amy Todd, Emma Bennett-Huntley, J Enrique Domínguez-Muñoz
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引用次数: 0

Abstract

Introduction: Commercially available pancreatic enzyme replacement therapy (PERT) preparations differ significantly in their physical and enzyme properties, raising concern about the interchangeability of these preparations. The current study aimed to compare various commercially available PERT in Europe and Canada for physical properties, enzyme content, enzyme activities, release characteristics, and compliance with the label claim.

Methods: Particle size was determined using a dynamic image analyzer and represented as Feret Max at 10th (FERET Max D [v, 0.1]), 50th (FERET Max D [v, 0.5]), and 90th percentiles (FERET Max D [v, 0.9]). Particle imaging was performed using scanning electron microscopy and a Quorum sputter coater. Lipase activity was measured according to the European Pharmacopoeia (Ph. Eur) and International Pharmaceutical Federation (FIP) procedures. The measured activity was compared against the label claims to identify the percentage of deviations. Lipase release at different pH (release kinetics) was also determined subsequently.

Results: The particle size of the PERT preparations differed considerably. There were deviations in the actual lipase content from the label claim, ranging from 85.8% (Gastrozym 10000) to 177.5% (Pancreolan 6000). Under the simulated conditions, most PERT preparations released the enzyme lipase at an acidic pH present in the stomach before reaching the duodenum.

Conclusion: PERT preparations available in Europe and Canada exhibit significant differences in terms of physical and enzyme release kinetics. Careful evaluation is needed when interchanging these preparations, as it could impact the therapeutic outcomes.

欧洲和加拿大可用胰酶制剂的物理特性、酶含量和释放动力学的体外比较。
市面上可买到的胰酶替代疗法(PERT)制剂在物理和酶性质上有很大的不同,这引起了人们对这些制剂的互换性的关注。目前的研究旨在比较欧洲和加拿大的各种市售PERT的物理性质、酶含量、酶活性、释放特性和符合标签声明。方法:使用动态图像分析仪测定颗粒大小,并表示为第10 (Feret Max D [v, 0.1]),第50 (Feret Max D [v, 0.5])和第90百分位(Feret Max D [v, 0.9])的Feret Max。采用扫描电子显微镜和Quorum溅射镀膜机进行粒子成像。脂肪酶活性按照欧洲药典(Ph. Eur)和国际药联(FIP)程序测定。将测量的活性与标签声明进行比较,以确定偏差的百分比。随后测定了不同pH下脂肪酶的释放(释放动力学)。结果:PERT制剂的粒径差异较大。实际脂肪酶含量与标签声明存在偏差,范围从85.8% (Gastrozym 10000)到177.5%(胰酶6000)。在模拟条件下,大多数PERT制剂在到达十二指肠之前在胃中以酸性pH释放脂肪酶。结论:欧洲和加拿大的PERT制剂在物理和酶释放动力学方面存在显著差异。在交换这些制剂时需要仔细评估,因为它可能影响治疗结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Drugs in Research & Development
Drugs in Research & Development Pharmacology, Toxicology and Pharmaceutics-Pharmacology
CiteScore
5.10
自引率
0.00%
发文量
31
审稿时长
8 weeks
期刊介绍: Drugs in R&D is an international, peer reviewed, open access, online only journal, and provides timely information from all phases of drug research and development that will inform clinical practice. Healthcare decision makers are thus provided with knowledge about the developing place of a drug in therapy. The Journal includes: Clinical research on new and established drugs; Preclinical research of direct relevance to clinical drug development; Short communications and case study reports that meet the above criteria will also be considered; Reviews may also be considered.
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