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Adhikari S, Berger SN, Rustum AM. Development of Relatively Simple Sample Pretreatment Strategies to Selectively Remove Chromatographic Interfering Peaks of Polysorbate 80 from Liquid Oral Finished Drug Product. J Chromatogr Sci 2024; 62:593-599. [PMID: 37592908 DOI: 10.1093/chromsci/bmad064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 06/29/2023] [Accepted: 07/27/2023] [Indexed: 08/19/2023]
Abstract
Polysorbate 80 (PS 80) is a nonionic surfactant, used in myriad of pharmaceutical, food and cosmetic formulations. PS 80 components have strong UV absorbance and retain under reversed-phase chromatographic conditions, significantly masking sections of the chromatogram. PS 80-related peaks interferences in a sample are common and can be difficult to separate from the analyte peaks. A liquid oral finished product (LOFP) containing PS 80 and Ivermectin as the active pharmaceutical ingredient (API) was selected for this study. Herein, we report two sample pretreatment strategies focusing on the selective removal of PS 80 from the LOFP. Both methods significantly reduce and/or practically eliminate excipients and PS 80-related peaks interferences from the LOFP without a negative impact on the API and its key-related substances recovery. The solid-phase extraction (SPE) strategy uses a C18 SPE followed by a silica gel SPE, whereas the liquid-liquid extraction strategy uses in situ-generated sodium caprylate for the removal of formulation excipients and PS 80. These methods can significantly increase the reliability of high-performance liquid chromatography methods and decrease false positive out-of-specifications events because of coelution of PS 80-related peaks with peaks of interest.
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Affiliation(s)
- Sarju Adhikari
- Global Pharmaceutical Technical Support (GPTS), Boehringer Ingelheim Animal Health USA Inc. (BIAH), 631 US Route 1 South, North Brunswick, NJ 08902, USA
| | - Shane N Berger
- Global Pharmaceutical Technical Support (GPTS), Boehringer Ingelheim Animal Health USA Inc. (BIAH), 631 US Route 1 South, North Brunswick, NJ 08902, USA
| | - Abu M Rustum
- Global Pharmaceutical Technical Support (GPTS), Boehringer Ingelheim Animal Health USA Inc. (BIAH), 631 US Route 1 South, North Brunswick, NJ 08902, USA
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2
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Wang J, Sun H, Yang H, Yang R, Zhu X, Guo S, Huang Y, Xu Y, Li C, Tu J, Sun C. Dessecting the toxicological profile of polysorbate 80 (PS80): comparative analysis of constituent variability and biological impact using a zebrafish model. Eur J Pharm Sci 2024; 198:106796. [PMID: 38735400 DOI: 10.1016/j.ejps.2024.106796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/14/2024]
Abstract
Polysorbate 80, commonly abbreviated as PS80, is a widely used pharmaceutical excipient renowned for its role as a solubilizer and stabilizer in drug formulations. Although PS80 is essential for various pharmaceutical applications, particularly in the formulation of injectable drugs, it has been implicated in a range of adverse reactions. However, due to the complexity of the composition of PS80, the differences in the types and contents of the constituents of PS80 from different manufacturers increase the probability or likelihood of their uneven quality. Addressing the complete spectrum of PS80's components is challenging; thus, most studies to date have examined PS80 as a singular entity. This approach, however, carries a degree of uncertainty, as it overlooks the unique composition and concentration of components within the PS80 used in experiments, which may not reflect the actual diversity in commercially available PS80 products. Recognizing the critical need to understand how PS80's composition influences biological effects and toxicity, our study aims to bridge this knowledge gap. By doing so, we can clarify how different PS80 compositions from various manufacturers might affect the quality of pharmaceutical formulations, and also guide excipient manufacturers toward producing higher-quality PS80. Such insights could further facilitate a more targeted application of PS80 in drug development. Building on our previous work, we isolated and prepared two key components of PS80-polyoxyethylene sorbitan monooleate (PSM) and polyoxyethylene isosorbide monooleate (PIM)-and conducted a systematic comparison. We evaluated the acute, hemolytic, and target organ toxicity of two different PS80 samples, as well as PSM and PIM, using a zebrafish model. Our research also delved into the potential mechanisms behind the observed toxicological effects, providing an in-depth understanding of PS80's impact on biological systems.The results show that PS80, PSM, and PIM resulted in developmental anomalies in larval zebrafish. The primary organs of acute toxicity in zebrafish exposed to PS80 and its typical components PSM and PIM include the cardiovascular system, kidneys, intestines, skin, and liver. Notably, PIM further induced severe pericardial edema and erythrocyte hemolysis, thereby affecting blood flow. The samples also instigated oxidative damage by disrupting the redox equilibrium in the larvae. Compared to PS80, both PSM and PIM induced greater oxidative damage, with PIM notably causing significantly higher lipid oxidation, suggesting that oxidative stress may play a crucial role in polysorbate80-induced toxicity. Furthermore, our study found that PS80 could induce alterations in DNA conformation. The findings underscore the necessity for excipient regulators to establish comprehensive quality standards for Polysorbate 80 (PS80). By implementing such standards, it is possible to minimize the clinical risks associated with the variability in PS80 composition, ensuring safer pharmaceutical products for patients.
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Affiliation(s)
- Jue Wang
- State Key Laboratory of Natural Medicines, NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, and Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China; NMPA Key Laboratory for Quality Control of Pharmaceutical Excipients, National Institutes for Food and Drug Control, 2 Tiantan Xili, Dongcheng District, Beijing 100050, China
| | - Huimin Sun
- NMPA Key Laboratory for Quality Control of Pharmaceutical Excipients, National Institutes for Food and Drug Control, 2 Tiantan Xili, Dongcheng District, Beijing 100050, China
| | - Huiying Yang
- NMPA Key Laboratory for Quality Control of Pharmaceutical Excipients, National Institutes for Food and Drug Control, 2 Tiantan Xili, Dongcheng District, Beijing 100050, China
| | - Rui Yang
- NMPA Key Laboratory for Quality Control of Pharmaceutical Excipients, National Institutes for Food and Drug Control, 2 Tiantan Xili, Dongcheng District, Beijing 100050, China
| | - Xiaoyu Zhu
- Hunter Biotechnology Inc, F1A, building 5, No. 88 Jiangling Road, Binjiang Zone, Hangzhou City, Zhejiang Province 310051, China
| | - Shengya Guo
- Hunter Biotechnology Inc, F1A, building 5, No. 88 Jiangling Road, Binjiang Zone, Hangzhou City, Zhejiang Province 310051, China
| | - Yanfeng Huang
- Hunter Biotechnology Inc, F1A, building 5, No. 88 Jiangling Road, Binjiang Zone, Hangzhou City, Zhejiang Province 310051, China
| | - Yiqiao Xu
- Hunter Biotechnology Inc, F1A, building 5, No. 88 Jiangling Road, Binjiang Zone, Hangzhou City, Zhejiang Province 310051, China
| | - Chunqi Li
- Hunter Biotechnology Inc, F1A, building 5, No. 88 Jiangling Road, Binjiang Zone, Hangzhou City, Zhejiang Province 310051, China
| | - Jiasheng Tu
- State Key Laboratory of Natural Medicines, NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, and Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China.
| | - Chunmeng Sun
- State Key Laboratory of Natural Medicines, NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, and Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China.
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3
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Šprager E, Möller J, Lin Y, Reisinger V, Bratkovič T, Lunder M, Vašl J, Krajnc A. Identification of Acyl-Protein Thioesterase-1 as a Polysorbate-Degrading Host Cell Protein in a Monoclonal Antibody Formulation Using Activity-Based Protein Profiling. J Pharm Sci 2024:S0022-3549(24)00185-0. [PMID: 38772451 DOI: 10.1016/j.xphs.2024.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 05/23/2024]
Abstract
Polysorbate (PS) degradation in monoclonal antibody (mAb) formulations poses a significant challenge in the biopharmaceutical industry. PS maintains protein stability during drug product's shelf life but is vulnerable to breakdown by low-abundance residual host cell proteins (HCPs), particularly hydrolytic enzymes such as lipases and esterases. In this study, we used activity-based protein profiling (ABPP) coupled with mass spectrometry to identify acyl-protein thioesterase-1 (APT-1) as a polysorbate-degrading HCP in one case of mAb formulation with stability problems. We validated the role of APT1 by matching the polysorbate degradation fingerprint in the mAb formulation with that of a recombinant APT1 protein. Furthermore, we found an agreement between APT1 levels and PS degradation rates in the mAb formulation, and we successfully halted PS degradation using APT1-specific inhibitors ML348 and ML211. APT1 was found to co-purify with a specific mAb via hitchhiking mechanism. Our work provides a streamlined approach to identifying critical HCPs in PS degradation, supporting quality-by-design principles in pharmaceutical development.
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Affiliation(s)
- Ernest Šprager
- University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia; Novartis Technical Research & Development, Biologics Technical Development Mengeš, Novartis Pharmaceutical Manufacturing LLC, Slovenia
| | - Jens Möller
- Novartis Technical Research & Development, Analytical Characterization, Novartis Pharmaceutical Manufacturing GmbH, Kundl, Austria
| | - Yuhsien Lin
- Novartis Technical Research & Development, Analytical Characterization, Novartis Pharmaceutical Manufacturing GmbH, Kundl, Austria
| | - Veronika Reisinger
- Novartis Technical Research & Development, Analytical Characterization, Novartis Pharmaceutical Manufacturing GmbH, Kundl, Austria
| | - Tomaž Bratkovič
- University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
| | - Mojca Lunder
- University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
| | - Jožica Vašl
- Novartis Technical Research & Development, Biologics Technical Development Mengeš, Novartis Pharmaceutical Manufacturing LLC, Slovenia
| | - Aleksander Krajnc
- Novartis Technical Research & Development, Biologics Technical Development Mengeš, Novartis Pharmaceutical Manufacturing LLC, Slovenia.
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4
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Konya Y, Ochiai R, Fujiwara S, Tsujino K, Okumura T. Detailed profiling of polysorbate 80 oxidative degradation products and hydrolysates using liquid chromatography-tandem mass spectrometry analysis. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2024; 38:e9715. [PMID: 38351644 DOI: 10.1002/rcm.9715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/14/2024] [Accepted: 01/19/2024] [Indexed: 02/16/2024]
Abstract
RATIONALE Polysorbate 80 (PS80) is an amphipathic, nonionic surfactant that is commonly used to stabilize proteins in biopharmaceutical formulations. PS80 undergoes oxidative and/or enzymatic degradation. However, because PS80 is a complex mixture consisting of many constituents, comprehensive evaluations of its oxidative degradation products are difficult and insufficient. METHODS Our previously reported comprehensive liquid chromatography-tandem mass spectrometry (LC/MS/MS)-based method for PS80 effectively provides an overall profile of PS80 components under simple LC conditions. In this study, we attempted to shorten the analysis time. Furthermore, PS80 was oxidatively degraded in a solution containing histidine and iron, and the oxidative degradation products were evaluated using a modified LC/MS/MS method. In addition, enzymatically hydrolyzed PS80 samples were analyzed. RESULTS We succeeded in shortening the analysis time from 70 to 20 min while maintaining the resolution of the PS80 components of the same selected reaction monitoring transition. Both the previously reported oxidative degradation products and the newly discovered products were successfully detected, and their composition ratios and changes over time were observed. Changes in the hydrolysates over time are shown in the analysis of the hydrolyzed PS80 samples. CONCLUSIONS This study clearly showed the presence of changes in PS80 oxidative and/or enzymatic degradation products, including those previously unreported. These results demonstrate that a detailed profiling of PS80 degradation products can be performed using LC/MS/MS, which is less expensive and more generally adopted than high-resolution MS.
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Affiliation(s)
- Yutaka Konya
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Kyoto, Japan
| | - Ryosuke Ochiai
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Kyoto, Japan
| | - Satoshi Fujiwara
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Kyoto, Japan
| | - Kazushige Tsujino
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Kyoto, Japan
| | - Takeshi Okumura
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Kyoto, Japan
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Steiner K, Josef Schmolz J, Hoang F, Wolf H, Seiser S, Elbe-Bürger A, Klang V. Surfactants for stabilization of dermal emulsions and their skin compatibility under UVA irradiation: Diacyl phospholipids and polysorbate 80 result in high viability rates of primary human skin cells. Int J Pharm 2024; 653:123903. [PMID: 38350500 DOI: 10.1016/j.ijpharm.2024.123903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/25/2024] [Accepted: 02/09/2024] [Indexed: 02/15/2024]
Abstract
Phospholipids are versatile formulation compounds with high biocompatibility. However, no data on their effect on skin in combination with UVA radiation exist. Thus, it was the aim of this work to (i) develop o/w nanoemulsions (NEs) differing in surfactant type and to investigate their physicochemical stability at different storage temperatures, (ii) establish a standardized protocol for in vitro phototoxicity testing using primary human skin cells and (iii) investigate the phototoxicity of amphoteric phospholipids (S45, S75, E80, S100, LPC80), sodium lauryl ether sulfate (SLES) and polysorbate 80 (PS80). Satisfying systems were developed with all surfactants except S100 due to low zeta potential (-21.4 mV ± 4.69). SLES and PS80-type NEs showed the highest stability after eight weeks; temperature-dependent variations in storage stability were most noticeable for phospholipid surfactants. For phospholipid-based NEs, higher phosphatidylcholine content led to unstable formulations. Phototoxicity assays with primary skin fibroblasts confirmed the lack of UVA-related phototoxicity but revealed cytotoxic effects of LPC80 and SLES, resulting in cell viability as low as 2.7 % ±0.78 and 1.9 % ±1.57 compared to the control. Our findings suggest that surfactants S45, S75 and PS80 are the most promising candidates for skin-friendly emulsifiers in sensitive applications involving exposure to UV light.
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Affiliation(s)
- Katja Steiner
- University of Vienna, Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology and Biopharmaceutics, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Jakob Josef Schmolz
- University of Vienna, Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology and Biopharmaceutics, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Felisa Hoang
- University of Vienna, Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology and Biopharmaceutics, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Hanna Wolf
- University of Vienna, Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology and Biopharmaceutics, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Saskia Seiser
- Medical University of Vienna, Department of Dermatology, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Adelheid Elbe-Bürger
- Medical University of Vienna, Department of Dermatology, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Victoria Klang
- University of Vienna, Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology and Biopharmaceutics, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
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6
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Kopf R, Paschen C, Müller L, Kocar B, Wolfring M, Vincent M, Klemm D, Bell C, Pinto C. Leveraging mass detection to simultaneously quantify surfactant content and degradation mode for highly concentrated biopharmaceuticals. J Pharm Biomed Anal 2023; 236:115651. [PMID: 37688908 DOI: 10.1016/j.jpba.2023.115651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 09/11/2023]
Abstract
Non-ionic surfactants are commonly used in parenteral protein formulations and include polysorbate 20, polysorbate 80 and poloxamer188. Recently, quantification and characterization of surfactants has generated considerable interest due to their connection to visible particle formation, a critical quality attribute for parenteral formulations. Typically, surfactant quantification is performed by mixed mode chromatography with evaporative light scattering detection (ELSD) or charged aerosol detection (CAD). However, these methods often suffer from loss of specificity in highly concentrated protein formulations. Here we present a mixed mode chromatography method using single quad mass detection, overcoming current limitations for highly concentrated proteins. In addition to content determination of intact surfactants, this method allows to quantify and characterize the predominant degradation patterns of polysorbates within a single measurement. Formulations with up to 200 mg/mL active pharmaceutical product (API) containing surfactant levels between 0.16 and 0.64 mg/mL were tested during method qualification. The obtained results for linearity (r > 0.99), precision (max. 3.8 % RSD) and accuracy (96-116 % recovery) meet current requirements for pharmaceutical products as defined in ICH Q2.
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Affiliation(s)
- Robert Kopf
- F. Hoffmann-La Roche AG, Grenzacherstrasse 24, CH-4070 Basel, Switzerland.
| | - Christoph Paschen
- F. Hoffmann-La Roche AG, Grenzacherstrasse 24, CH-4070 Basel, Switzerland
| | - Lavinia Müller
- F. Hoffmann-La Roche AG, Grenzacherstrasse 24, CH-4070 Basel, Switzerland
| | - Berk Kocar
- F. Hoffmann-La Roche AG, Grenzacherstrasse 24, CH-4070 Basel, Switzerland
| | - Martin Wolfring
- F. Hoffmann-La Roche AG, Grenzacherstrasse 24, CH-4070 Basel, Switzerland
| | - Mathilde Vincent
- F. Hoffmann-La Roche AG, Grenzacherstrasse 24, CH-4070 Basel, Switzerland
| | - Denis Klemm
- F. Hoffmann-La Roche AG, Grenzacherstrasse 24, CH-4070 Basel, Switzerland
| | - Christian Bell
- F. Hoffmann-La Roche AG, Grenzacherstrasse 24, CH-4070 Basel, Switzerland
| | - Cosimo Pinto
- F. Hoffmann-La Roche AG, Grenzacherstrasse 24, CH-4070 Basel, Switzerland
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Al-Suwayeh SA, Badran MM, Alhumoud GO, Taha EI, Ashri LY, Kazi M. Design and dermatokinetic appraisal of lornoxicam-loaded ultrafine self-nanoemulsion hydrogel for the management of inflammation: In vitro and in vivo studies. Saudi Pharm J 2023; 31:889-903. [PMID: 37228319 PMCID: PMC10203694 DOI: 10.1016/j.jsps.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/03/2023] [Indexed: 05/27/2023] Open
Abstract
The present study aimed to evaluate the impact of ultrafine nanoemulsions on the transdermal delivery of lornoxicam (LOR) for management of the inflammation. The transdermal administration of LORNE could increase the efficacy of LOR with a reduction in side effects. Merging the beneficial properties of ultrafine nanoemulsions and their components (penetration enhancers) can lead to good solubilization, a small droplet size, and more effective LOR carriers. Therefore, this study aims to develop and evaluate the potential use of ultrafine nanoemulsions of LOR (LORNE) to elucidate their skin targeting for the treatment of inflammation. Based on solubility and pseudo ternary phase diagram tests, ultrafine LORNE composed of Labrafil M 2125 CS, Cremophor RH40, and Transcutol HP to deliver LOR was developed and characterized for its physicochemical properties, emulsification, and in vitro release. The selected LORNE was incorporated into carbopol gel (LORNE-Gel) and examined for ex vivo skin permeation, retention, dermatokinetics, anti-inflammatory efficacy, and skin irritation. The selected LORNE12-Gel could improve skin permeation, retention, and dermatokinetic results significantly (p < 0.05) with enhanced CSkin max and AUC0-48h compared to LOR-Gel. Moreover, LORNE12-Gel showed a remarkable anti-inflammatory effect compared to LOR-Gel after topical application. No signs of skin irritation were observed following treatment, indicating the safety of LORNE12-Gel. Thus, this study demonstrated that LOR-loaded LORNE12-Gel could be promising as an efficient transdermal nanocarrier for an anti-inflammatory alternative.
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Affiliation(s)
| | - Mohamed M. Badran
- Corresponding author at: Department of Pharmaceutics, College of Pharmacy, King Saud University, Building # 23, AA 68, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
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8
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Konya Y, Ochiai R, Fujiwara S, Tsujino K, Okumura T. Profiling polysorbate 80 components using comprehensive liquid chromatography-tandem mass spectrometry analysis. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2023; 37:e9438. [PMID: 36410723 DOI: 10.1002/rcm.9438] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
RATIONALE Polysorbate 80 (PS80) is an amphipathic, nonionic surfactant commonly used in pharmaceutical protein formulations and is composed of fatty acid (FA) esters of polyethoxylated sorbitan. However, commercial PS80 products contain substantial amounts of by-products. The development of simple and reliable methods for PS80 component analysis is challenging given the inherent heterogeneity. METHOD We developed a comprehensive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method to profile the components of PS80. Semi-comprehensive LC-MS/MS analyses of 11 subspecies in three commercial PS80 products were performed to estimate the average degree of polymerization of the ethylene oxide units (Avg-n) in the molecules. Furthermore, three subspecies (polyoxyethylene sorbitan monoester, polyoxyethylene isosorbide monoester, and polyoxyethylene monoester) were analyzed to estimate the composition ratios of the seven ester-bonded FAs present in PS80. RESULTS The Avg-n values of five polyoxyethylene sorbitan esters (none, mono, di, tri, and tetra), three polyoxyethylene isosorbide esters (none, mono, and di), and three polyoxyethylene esters (none, mono, and di) were 26.5-30.6, 12.1-14.6, and 11.4-15.8, respectively. These values were comparable regardless of the number of ester-bonded FAs. Each product had a similar FA composition ratio regardless of the differences in the subspecies. However, the obtained C18:2 values were higher than those reported in the product certificates. CONCLUSION The proposed LC-MS/MS method evaluated the overall PS80 components, revealing the possibility of underestimation of ester-bonded linoleic acid using the conventional gas chromatography-mass spectrometry method. The similarity of Avg-n values and FA compositions among subspecies suggested the high reliability of these results, indicating that the presented approach may help in the quality control of PS80 formulations.
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Affiliation(s)
- Yutaka Konya
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Kyoto, Japan
| | - Ryosuke Ochiai
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Kyoto, Japan
| | - Satoshi Fujiwara
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Kyoto, Japan
| | - Kazushige Tsujino
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Kyoto, Japan
| | - Takeshi Okumura
- Pharmaceuticals and Life Sciences Division, Shimadzu Techno-Research, Inc., Kyoto, Japan
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9
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Rustandi RR. Polysorbate 80 and histidine quantitative analysis by NMR in the presence of virus‐like particles. Electrophoresis 2022; 43:1408-1414. [PMID: 35366009 PMCID: PMC9544792 DOI: 10.1002/elps.202100189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 02/28/2022] [Accepted: 03/22/2022] [Indexed: 11/13/2022]
Abstract
Polysorbate‐80 (PS80) and histidine are common excipients in vaccine and therapeutic protein formulation. A simple quantitative NMR method to measure both PS80 and histidine in human papillomavirus (HPV) virus‐like particle (VLP) vaccine for aqueous and alum‐containing samples is described. The new NMR method is compared to current colorimetric methods for PS80 and RP HPLC for histidine. The new NMR method is comparable to current assays with an advantage of a simpler sample treatment for PS80. The efficiency is also increased because one method can now provide two assay results instead of two separate methods. Furthermore, the NMR method can detect PS80 stability due to hydrolysis and oxidation when PS80 is stored in a stainless steel container by observing a change of its NMR line shape profile.
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10
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Zhang S, Xiao H, Li N. The Characterization of Polysorbate. Curr Protoc 2022; 2:e489. [PMID: 35857882 DOI: 10.1002/cpz1.489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Polysorbates (PSs), including PS20 and PS80, are non-ionic surfactants widely used in the pharmaceutical industry to enhance drug solubility and stability. Despite their wide application, PSs are prone to degradation by either hydrolysis or oxidation in drug formulations during storage; therefore, a PS characterization method assessing protein products is needed for stability testing and for understanding the degradation pathway. In this article, we detail our protocol for sample preparation for forced degradation study and our instrumentation setup for PS profiling and quantitation in protein samples. © 2022 Wiley Periodicals LLC. Basic Protocol 1: Sample preparation for forced degradation of polysorbate in protein samples Basic Protocol 2: Two-dimensional liquid chromatography coupled with charged aerosol detector or mass spectrometry to analyze polysorbate degradation.
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Affiliation(s)
- Sisi Zhang
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
| | - Hui Xiao
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
| | - Ning Li
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
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11
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Peters BH, Wei Y, Middaugh CR, Schöneich C. Intra-micellar and extra-micellar oxidation in phosphate and histidine buffers containing polysorbate 80. J Pharm Sci 2022; 111:2435-2444. [PMID: 35716732 DOI: 10.1016/j.xphs.2022.06.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 06/08/2022] [Accepted: 06/08/2022] [Indexed: 11/15/2022]
Abstract
Polysorbate is a key excipient included in formulations of therapeutic proteins to help prevent aggregation and surface adsorption. The stability of both polysorbate and therapeutic proteins can be compromised by oxidative degradation. In general, polysorbate is added to formulations at concentrations above the critical micelle concentration (cmc). To date, however, few experiments have quantitatively addressed the extent of extra- and intra-micellar oxidation of polysorbate in pharmaceutically relevant buffers. This study utilizes 2,2'-azobis(2-methylpropionamidine)dihydrochloride (AAPH), a peroxyl radical-generating initiator, C11-BODIPY(581/591), a lipid peroxidation probe, and fluorescence spectroscopy to reveal that both intra- and extra-micellar oxidation proceed in pharmaceutically relevant phosphate and histidine buffers. It is further demonstrated that the relative extent of oxidation observed in the intra- and extra-micellar compartments is similar irrespective of the buffer system.
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Affiliation(s)
- Björn-Hendrik Peters
- Department of Pharmaceutical Chemistry, The University of Kansas, Lawrence, KS 66047
| | - Yangjie Wei
- Department of Pharmaceutical Chemistry, The University of Kansas, Lawrence, KS 66047
| | - C Russell Middaugh
- Department of Pharmaceutical Chemistry, The University of Kansas, Lawrence, KS 66047
| | - Christian Schöneich
- Department of Pharmaceutical Chemistry, The University of Kansas, Lawrence, KS 66047.
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12
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Mustafa IF, Hussein MZ, Idris AS, Hilmi NHZ, Ramli NR, Fakurazi S. The effect of surfactant type on the physico-chemical properties of hexaconazole/dazomet-micelle nanodelivery system and its biofungicidal activity against Ganoderma boninense. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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A Mechanistic Understanding of Monoclonal Antibody Interfacial Protection by Hydrolytically Degraded Polysorbate 20 and 80 under IV Bag Conditions. Pharm Res 2022; 39:563-575. [PMID: 35277841 DOI: 10.1007/s11095-022-03217-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 02/24/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE Polysorbates (PS) contain polyoxyethylene (POE) sorbitan/isosorbide fatty acid esters that can partially hydrolyze over time in liquid drug products to generate degradants and a remaining intact PS fraction with a modified ester distribution. The degradants are composed of free fatty acids (FFAs) --primarily lauric acid for PS20 and oleic acid for PS80-- and POE head groups. We previously demonstrated that under IV bag agitation conditions, mAb1 (a surface-active IgG4) aggregation increased with increasing amounts of degradants for PS20 but not for PS80. The purpose of this work is to understand the mechanism behind this observation. METHODS The surface tension of the remaining intact PS fraction without degradants was modeled and compared with that of enzymatically degraded PS solutions. Next, mAb1 aggregation in saline was measured in the presence of laurate and oleate salts during static storage. Lastly, colloidal and conformational stability of mAb1 in the presence of these salts was investigated through differential scanning fluorimetry and dynamic light scattering under IV bag solution conditions. RESULTS The surface tension was primarily influenced by FFAs rather than the modified ester distribution of the remaining intact PS. MAb1 bulk aggregation increased in the presence of laurate but not oleate salts. Both salt types increased the melting temperature of mAb1 indicating FFA-mAb1 interactions. However, only laurate salt increased mAb1 self-association potentially explaining the higher aggregation propensity in its presence. CONCLUSION Our results help explain the observed differences between hydrolytically degraded PS20 and PS80 in affecting mAb1 aggregation under IV bag agitation conditions.
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14
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Mechanistic understanding of metal-catalyzed oxidation of polysorbate 80 and monoclonal antibody in biotherapeutic formulations. Int J Pharm 2022; 615:121496. [DOI: 10.1016/j.ijpharm.2022.121496] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/10/2022] [Accepted: 01/15/2022] [Indexed: 01/20/2023]
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15
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Industry perspective on the use and characterization of polysorbates for biopharmaceutical products Part 1: Survey report on current state and common practices for handling and control of polysorbates. J Pharm Sci 2022; 111:1280-1291. [PMID: 35192858 DOI: 10.1016/j.xphs.2022.02.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/16/2022] [Accepted: 02/16/2022] [Indexed: 11/20/2022]
Abstract
Polysorbates (PS) are widely used as a stabilizer in biopharmaceutical products. Industry practices on various aspects of PS are presented in this part 1 survey report based on a confidential survey and following discussions by 16 globally acting major biotechnology companies. The current practice and use of PS during manufacture across their global manufacturing sites are covered in addition to aspects like current understanding of the (in)stability of PS, the routine QC testing and control of PS, and selected regulatory aspects of PS. The results of the survey and extensive cross-company discussions are put into relation with currently available scientific literature. Part 2 of the survey report (upcoming) will focus on understanding, monitoring, prediction, and mitigation of PS degradation pathways to develop an effective control strategy.
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16
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Zhang S, Riccardi C, Kamen D, Xiao H, Li N. Monitoring polysorbate hydrolysis in therapeutic proteins using an ultrasensitive extraction-free fatty acid quantitation method. Anal Biochem 2022; 637:114472. [PMID: 34801481 DOI: 10.1016/j.ab.2021.114472] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 01/15/2023]
Abstract
Polysorbates (PSs) are surfactants commonly added to therapeutic protein drug product formulations to protect proteins from denaturation and aggregation during storage, transportation, and delivery. However, enzymatic hydrolysis of PSs has been recognized as the primary route of PS degradation in monoclonal antibody formulations, resulting in the release of free fatty acids that drive undesired particulate formation. Here, we present a rapid lipase activity assay with optimized incubation conditions for accurate quantitation of free fatty acids without a fatty acid extraction step. This assay can detect low levels of PS degradation (0.000024% PS20 degradation) within 1 day with minimal sample preparation. The levels of released free fatty acids were found to strongly correlate with the degree of PS20 degradation. The case study described herein suggests that this approach can detect low levels of PS20 degradation caused by sub-ppm lipase levels within 1 day, compared with the duration of 14 days needed for PS degradation assays based on two-dimensional liquid chromatography-charge aerosol detection.
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Affiliation(s)
- Sisi Zhang
- Analytical Chemistry, Regeneron Pharmaceuticals, Tarrytown, NY, 10591, USA
| | - Caterina Riccardi
- Formulation Group, Regeneron Pharmaceuticals, Tarrytown, NY, 10591, USA
| | - Douglas Kamen
- Formulation Group, Regeneron Pharmaceuticals, Tarrytown, NY, 10591, USA
| | - Hui Xiao
- Analytical Chemistry, Regeneron Pharmaceuticals, Tarrytown, NY, 10591, USA.
| | - Ning Li
- Analytical Chemistry, Regeneron Pharmaceuticals, Tarrytown, NY, 10591, USA
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17
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Identification of the specific causes of polysorbate 20 degradation in monoclonal antibody formulations containing multiple lipases. Pharm Res 2022; 39:75-87. [PMID: 34981317 DOI: 10.1007/s11095-021-03160-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/21/2021] [Indexed: 01/22/2023]
Abstract
PURPOSE Polysorbates (PS) are excipients used in the biotech industry to stabilize monoclonal antibody (mAb) protein products. However, PS in drug product formulations can be degraded during storage and lead to particle formation because of the limited solubility of the free fatty acids released through the enzymatic hydrolysis of PS-a process driven by residual host cell proteins, especially lipases, that are co-purified with the drugs. When multiple lipases are present, it is very difficult to know the cause for PS degradation. In this study, we aim to determine the cause of PS degradation from two lipases, lysosomal acid lipase (LAL) and lipoprotein lipase (LPL). METHODS PS degradation pattern of the drug product was compared with those induced by recombinant lipases. Correlations between the concentration of LPL or LAL and PS20 loss were compared. Specific inhibitors, LAL inhibitor lalistat2 and LPL inhibitor GSK264220A, were used to differentiate their degradation of PS in the drug products. RESULTS The complete inhibition of PS20 degradation by lalistat2 suggested that LAL, rather than LPL, was responsible for the PS20 degradation. In addition, LAL was more strongly correlated than LPL with the percentage of PS20 degradation. No PS20 degradation was observed for several mAbs containing similar levels of LPL (0.5-1.5 ppm) in the absence of LAL, suggesting that LPL concentrations below 1.5 ppm does not degrade PS20 in drug products. CONCLUSIONS LAL was determined to be the cause of the PS20 degradation. This study provides a practical strategy to determine the root cause of PS degradation.
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18
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Yu X, Niu W, Wang YY, Olaleye OE, Wang JN, Duan MY, Yang JL, He RR, Chu ZX, Dong K, Zhang GP, Liu CX, Cheng C, Li C. Novel assays for quality evaluation of XueBiJing: Quality variability of a Chinese herbal injection for sepsis management. J Pharm Anal 2022; 12:664-682. [PMID: 36105162 PMCID: PMC9463487 DOI: 10.1016/j.jpha.2022.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 01/04/2022] [Accepted: 01/21/2022] [Indexed: 12/20/2022] Open
Abstract
XueBiJing is an intravenous five-herb injection used to treat sepsis in China. The study aimed to develop a liquid chromatography-tandem mass spectrometry (LC-MS/MS)- or liquid chromatography-ultraviolet (LC-UV)-based assay for quality evaluation of XueBiJing. Assay development involved identifying marker constituents to make the assay therapeutically relevant and building a reliable one-point calibrator for monitoring the various analytes in parallel. Nine marker constituents from the five herbs were selected based on XueBiJing's chemical composition, pharmacokinetics, and pharmacodynamics. A selectivity test (for “similarity of response”) was developed to identify and minimize interference by non-target constituents. Then, an intercept test was developed to fulfill “linearity through zero” for each analyte (absolute ratio of intercept to C response, <2%). Using the newly developed assays, we analyzed samples from 33 batches of XueBiJing, manufactured over three years, and found small batch-to-batch variability in contents of the marker constituents (4.1%–14.8%), except for senkyunolide I (26.5%). To make assays therapeutically relevant, criteria were proposed for defining herbal medicine efficacy & selecting analytes. Two tests were developed to build a one-point assay calibrator for the simultaneous monitoring of various analytes. Variability among 3-year batches of XueBiJing was evaluated for the first time using the therapeutically relevant assays.
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Affiliation(s)
- Xuan Yu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei Niu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Ya-Ya Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Olajide E. Olaleye
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Jia-Nan Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Meng-Yuan Duan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun-Ling Yang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Rong-Rong He
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Zi-Xuan Chu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kai Dong
- Research Institute, Tianjin Chasesun Pharmaceutical Co., Ltd., Tianjin, 301700, China
| | - Gui-Ping Zhang
- Research Institute, Tianjin Chasesun Pharmaceutical Co., Ltd., Tianjin, 301700, China
| | - Chang-Xiao Liu
- State Key Laboratory of Drug Delivery Technology and Pharmacokinetics and Tianjin Key Laboratory of Quality-Marker of Traditional Chinese Medicines, Tianjin Institute of Pharmaceutical Research, Tianjin, 300193, China
| | - Chen Cheng
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- Corresponding author.
| | - Chuan Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
- Corresponding author. State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
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19
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Guruge AG, Warren DB, Benameur H, Ford L, Williams HD, Jannin V, Pouton CW, Chalmers DK. Computational and Experimental Models of Type III Lipid-Based Formulations of Loratadine Containing Complex Nonionic Surfactants. Mol Pharm 2021; 18:4354-4370. [PMID: 34807627 DOI: 10.1021/acs.molpharmaceut.1c00547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Type III lipid-based formulations (LBFs) combine poorly water-soluble drugs with oils, surfactants, and cosolvents to deliver the drugs into the systemic circulation. However, the solubility of the drug can be influenced by the colloidal phases formed in the gastrointestinal tract as the formulation is dispersed and makes contact with bile and other materials present within the GI tract. Thus, an understanding of the phase behavior of LBFs in the gut is critical for designing efficient LBFs. Molecular dynamics (MD) simulation is a powerful tool for the study of colloidal systems. In this study, we modeled the internal structures of five type III LBFs of loratadine containing poly(ethylene oxide) nonionic surfactants polysorbate 80 and polyoxyl hydrogenated castor oil (Kolliphor RH40) using long-timescale MD simulations (0.4-1.7 μs). We also conducted experimental investigations (dilution of formulations with water) including commercial Claritin liquid softgel capsules. The simulations show that LBFs form continuous phase, water-swollen reverse micelles, and bicontinuous and phase-separated systems at different dilutions, which correlate with the experimental observations. This study supports the use of MD simulation as a predictive tool to determine the fate of LBFs composed of medium-chain lipids, polyethylene oxide surfactants, and polymers.
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Affiliation(s)
- Amali G Guruge
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Dallas B Warren
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | | | - Leigh Ford
- Lonza Pharma Sciences, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Hywel D Williams
- Lonza Pharma Sciences, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Vincent Jannin
- Lonza Pharma Sciences, 10 Rue Timken, Colmar 68027, France
| | - Colin W Pouton
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - David K Chalmers
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
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20
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Yang RS, Bush DR, DeGraan-Weber N, Barbacci D, Zhang LK, Letarte S, Richardson D. Advancing Structure Characterization of PS-80 by Charge-Reduced Mass Spectrometry and Software-Assisted Composition Analysis. J Pharm Sci 2021; 111:314-322. [PMID: 34487745 DOI: 10.1016/j.xphs.2021.08.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/31/2021] [Accepted: 08/31/2021] [Indexed: 11/28/2022]
Abstract
The commercially available Polysorbate 80 (PS-80) is a highly heterogeneous product. It is a complex and structurally diverse mixture consisting of polymeric species containing polyoxyethylenes (POEs), fatty acid esters, with/or without a carbohydrate core. The core is primarily sorbitan, with some isosorbide and sorbitol. Depending on the sources of fatty acids and the degrees of esterification, multiple combinations of fatty acid esters are commonly observed. A number of POE intermediates, such as polyoxyethylene glycols, POE-sorbitans, POE-isosorbides, and an array of fatty acid esters from these intermediates remain in the raw material as well. The complex composition of PS-80 is difficult to control and poses a significant characterization challenge for its use in the pharmaceutical industry. Here, we present a novel solution for PS-80 characterization using ultra high-performance liquid chromatography coupled with charge-reduction high resolution mass spectrometry. Post column co-infusion of triethylamine focused the signal into mainly singly charged molecular ions and reduced the extent of in-source fragmentation, resulting in a simpler ion map and enhanced measurement of PS-80 species. The data processing workflow is designed to programmatically identify PS-80 component classes and reduce the burden of manually analyzing complex MS data. The 2-dimensional graphical representation of the data helps visualize these features. Together, these innovative methodologies enabled us to analyze components in PS-80 with unprecedented detail and shall be a useful tool to study formulation and stability of pharmaceutical preparations. The power of this approach was demonstrated by comparing the composition of PS-80 obtained from different vendors.
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Affiliation(s)
- Rong-Sheng Yang
- Analytical Research & Development, Merck & Co., Inc, Kenilworth, New Jersey 07033, United States.
| | | | | | - Damon Barbacci
- Analytical Research & Development, Merck & Co., Inc, Kenilworth, New Jersey 07033, United States
| | - Li-Kang Zhang
- Analytical Research & Development, Merck & Co., Inc, Kenilworth, New Jersey 07033, United States
| | - Simon Letarte
- Analytical Research & Development, Merck & Co., Inc, Kenilworth, New Jersey 07033, United States
| | - Douglas Richardson
- Analytical Research & Development, Merck & Co., Inc, Kenilworth, New Jersey 07033, United States
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21
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Webster GK, Chang JC, Heflin JL. Stability Indicating Method for Polysorbate 80 in Protein Formulations. J Chromatogr Sci 2021; 59:706-713. [PMID: 33367524 DOI: 10.1093/chromsci/bmaa116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/19/2020] [Accepted: 11/09/2020] [Indexed: 11/14/2022]
Abstract
Polysorbates (also known as "Tween") are common components of protein formulations used to minimize protein adsorption and stabilize the protein. These nonionic surfactants are heterogenous mixtures of fatty acids with a complex reversed-phase profile due to the inhomogeneity of the polymers present. Polysorbates can be oxidized, which can be hard to detect in the complex polymer profile. Further adding to the analytical challenge is the lack of a chromophore for the detection of these polymers. The routine analysis of polysorbates in protein formulations was greatly improved through the introduction of online solid-phase extraction (SPE) to simplify the polysorbate profile for quantification. However, this method combines many of the polysorbate polymers into a single peak for detection, thus limiting its effectiveness for detecting degradation. To address the need for a stability indicating method without the complexity of the reversed-phase profile, an optimized online SPE method was developed and investigated. Using polysorbate 80, this investigation shows that further expanding the step gradient can yield a profile that is stability indicating and available for routine testing of protein formulation.
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Affiliation(s)
- Gregory K Webster
- Analytical Research and Development, AbbVie Inc., North Chicago, IL 60064 USA
| | - Jean C Chang
- Analytical Research and Development, AbbVie Inc., North Chicago, IL 60064 USA
| | - Julie L Heflin
- Analytical Research and Development, AbbVie Inc., North Chicago, IL 60064 USA
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22
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Liu H, Jin Y, Menon R, Laskowich E, Bareford L, de Vilmorin P, Kolwyck D, Yeung B, Yi L. Characterization of Polysorbate 80 by Liquid Chromatography-Mass Spectrometry to Understand Its Susceptibility to Degradation and Its Oxidative Degradation Pathway. J Pharm Sci 2021; 111:323-334. [PMID: 34416271 DOI: 10.1016/j.xphs.2021.08.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/15/2021] [Accepted: 08/15/2021] [Indexed: 10/20/2022]
Abstract
A liquid chromatography-mass spectrometry (LC-MS) method was developed to provide a fingerprint of polysorbate 80 (PS80) subspecies that enables identification of PS80 degradation pathway. The developed method demonstrates unique monoester peak profile of PS80 from different vendors, attributed by differences in relative abundance of the fatty acid monoesters. The LC-MS method was also applied to examine the susceptibility of PS80, at different grades, to auto-oxidation and hydrolysis. PS80 oxidative degradation induced by iron or occurred in open bottle without nitrogen overlay was found to follow the same pathway, but at a much faster rate in the former scenario. The oxidation preferentially occurs at the double bond of fatty acid chains, thus providing explanation on the faster degradation observed in PS80 at Chinese Pharmacopia (ChP) grade than at multi-compendial (MC) grade. In contrast, the difference in susceptibility of MC and ChP grade PS80 against esterase-induced hydrolysis in placebo was not pronounced. The method was also able to provide a fingerprint to identify both PS80 hydrolysis and oxidation in mAb drug product stability samples, but it required a solid phase extraction step to remove protein prior to the analysis.
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Affiliation(s)
- Haiyan Liu
- Analytical Development, Biogen Inc., 5000 Davis Drive, RTP, NC 27709, United States
| | - Yutong Jin
- Analytical Development, Biogen Inc., 5000 Davis Drive, RTP, NC 27709, United States
| | - Rashmi Menon
- Analytical Development, Biogen Inc., 5000 Davis Drive, RTP, NC 27709, United States
| | - Erin Laskowich
- Analytical Development, Biogen Inc., 5000 Davis Drive, RTP, NC 27709, United States
| | - Lisa Bareford
- Materials Science, Biogen Inc., 5000 Davis Drive, RTP, NC 27709, United States
| | - Phil de Vilmorin
- Materials Science, Biogen Inc., 5000 Davis Drive, RTP, NC 27709, United States
| | - Dave Kolwyck
- Materials Science, Biogen Inc., 5000 Davis Drive, RTP, NC 27709, United States
| | - Bernice Yeung
- Analytical Development, Biogen Inc., 5000 Davis Drive, RTP, NC 27709, United States
| | - Linda Yi
- Analytical Development, Biogen Inc., 5000 Davis Drive, RTP, NC 27709, United States.
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23
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Callender SP, Wettig SD. Phase Behavior of Non‐Ionic
Surfactant‐Medium
Chain
Triglyceride‐Water
Microemulsion Systems. J SURFACTANTS DETERG 2021. [DOI: 10.1002/jsde.12510] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shannon P. Callender
- School of Pharmacy University of Waterloo 200 University Ave. W. Waterloo Ontario N2L 3G1 Canada
| | - Shawn D. Wettig
- School of Pharmacy University of Waterloo 200 University Ave. W. Waterloo Ontario N2L 3G1 Canada
- Waterloo Institute for Nanotechnology University of Waterloo 200 University Ave. W. Waterloo Ontario N2L 3G1 Canada
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24
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Guruge AG, Warren DB, Benameur H, Pouton CW, Chalmers DK. Aqueous phase behavior of the PEO-containing non-ionic surfactant C 12E 6: A molecular dynamics simulation study. J Colloid Interface Sci 2021; 588:257-268. [PMID: 33388586 DOI: 10.1016/j.jcis.2020.12.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 10/22/2022]
Abstract
HYPOTHESIS Non-ionic surfactants containing polyethylene oxide (PEO) chains are widely used in drug formulations, cosmetics, paints, textiles and detergents. High quality molecular dynamics models for PEO surfactants can give us detailed, atomic-scale information about the behavior of surfactant/water mixtures. SIMULATIONS We used two molecular dynamics force fields (FFs), 2016H66 and 53A6DBW, to model the simple non-ionic PEO surfactant, hexaoxyethylene dodecyl ether (C12E6). We investigated surfactant/water mixtures that span the phase diagram of starting from randomly distributed arrangements. In some cases, we also started with prebuilt, approximate models. The simulations results were compared with the experimentally observed phase behavior. FINDINGS Overall, this study shows that the spontaneous self-assembly of PEO non-ionic surfactants into different colloidal structures can be accurately modeled with MD simulations using the 2016H66 FF although transitions to well-formed hexagonal phase are slow. Of the two FFs investigated, the 2016H66 FF better reproduces the experimental phase behavior across all regions of the C12E6/water phase diagram.
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Affiliation(s)
- Amali G Guruge
- Medicinal Chemistry Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Dallas B Warren
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Hassan Benameur
- Oral Drug Delivery Innovation, Chemical Division, Lonza, Strasbourg, France
| | - Colin W Pouton
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - David K Chalmers
- Medicinal Chemistry Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia.
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25
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Doshi N, Giddings J, Luis L, Wu A, Ritchie K, Liu W, Chan W, Taing R, Chu J, Sreedhara A, Kannan A, Kei P, Shieh I, Graf T, Hu M. A Comprehensive Assessment of All-Oleate Polysorbate 80: Free Fatty Acid Particle Formation, Interfacial Protection and Oxidative Degradation. Pharm Res 2021; 38:531-548. [PMID: 33713012 DOI: 10.1007/s11095-021-03021-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 02/22/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE Enzymatic polysorbate (PS) degradation and resulting free fatty acid (FFA) particles are detrimental to biopharmaceutical drug product (DP) stability. Different types and grades of polysorbate have varying propensity to form FFA particles. This work evaluates the homogenous all-oleate (AO) PS80 alongside heterogeneous PS20 and PS80 grades in terms its propensity to form FFA particles and other important attributes like interfacial protection and oxidation susceptibility. METHODS FFA particle formation rates were compared by degrading PS using non-immobilized hydrolases and fast degrading DP formulations. Interfacial protection of monoclonal antibodies (mAbs) was assessed by agitation studies in saline using non-degraded and degraded PS. Several antioxidants were assessed for their ability to mitigate AO PS80 oxidation and subsequent mAb oxidation by a 40°C placebo stability study and a 2, 2'-Azobis (2-amidinopropane) dihydrochloride stress model, respectively. RESULTS Visible and subvisible particles were significantly delayed in AO PS80 formulations compared with heterogeneous PS20 and PS80 formulations. Non-degraded AO PS80 was less protective of mAbs against the air-water interface compared with heterogeneous PS20. Interfacial protection by AO PS80 improved upon degradation owing to high surface activity of FFAs. Diethylenetriaminepentaacetic acid (DTPA) completely mitigated AO PS80 oxidation unlike L-methionine and N-Acetyl-DL-Tryptophan. However, DTPA did not mitigate radical mediated mAb oxidation. CONCLUSION AO PS80 is a promising alternative to reduce FFA particle formation compared with other PS types and grades. However, limitations observed here---such as lower protection against interfacial stresses and higher propensity for oxidation---need to be considered in assessing the risk/benefit ratio in using AO PS80.
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Affiliation(s)
- Nidhi Doshi
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA.
| | - Jamie Giddings
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Lin Luis
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Arthur Wu
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Kyle Ritchie
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Wenqiang Liu
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Wayman Chan
- Analytical Operations, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Rosalynn Taing
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Jeff Chu
- Analytical Operations, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Alavattam Sreedhara
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Aadithya Kannan
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Pervina Kei
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Ian Shieh
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Tobias Graf
- Pharma Technical Development Analytics, Roche Diagnostics GmbH, Nonnenwald 2, 82377, Penzberg, Germany
| | - Mark Hu
- Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
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26
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Huang Z, Tu C, Liu H, Wang L, Zhu Z, Watanabe I. The composition analysis of free and bonded fatty acids in Polysorbate 80 by on-line two-step pyrolytic methylation-gas chromatography. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Heinle L, Sulaiman K, Olson A, Ruterbories K. A homologous series of internal standards for near universal application in the discovery LC-MS/MS bioanalytical laboratory. J Pharm Biomed Anal 2020; 190:113578. [DOI: 10.1016/j.jpba.2020.113578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/11/2020] [Accepted: 08/12/2020] [Indexed: 11/26/2022]
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Understanding polysorbate-compound interactions within the CMC region. J Chromatogr A 2020; 1623:461212. [DOI: 10.1016/j.chroma.2020.461212] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 01/14/2023]
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29
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Pétronille R, Bernard D, Guillaume LG, Victoire V, Thomas F, Jérôme C, Eloïse DC, Gérard P, Sylvie S, Audrey S, François L, Suzette D, Muriel P, Maxime A. Comparative analysis of docetaxel: physical and chemical characterisation of Taxotère® and generics. Eur J Cancer 2020; 135:183-191. [PMID: 32599408 DOI: 10.1016/j.ejca.2020.04.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 04/01/2020] [Indexed: 02/02/2023]
Abstract
Several cases of fatal enterocolitis have been described in association with the use of docetaxel (DTX), and this increase in adverse events has been concomitant with a change in formulation. Indeed in 2010, a new DTX-based presentation has been introduced in the form of a single ready-to-use vial by Sanofi-Aventis, presentation also used for generics. In this study, different available formulations were compared (Sanofi 2 vials, Sanofi 1 vial, Accord Healthcare, Kabi, Hospira) in terms of composition compliance with control specifications and simulated micelle behaviour to try to determine what could be the potential causes of this problem. This work had permitted to show that all the tested products complied with specifications in terms of dosage and purity. Variations in the composition of polysorbate 80 (PS80) have been observed but are probably too small to be responsible for the toxicity found in patients. However, we identified a difference in micelle size and release kinetics probably because of doubling concentration of ethanol in new formulation. As a result, we emphasised the importance in the case of DTX of conducting bioequivalence studies as expected in European Medicines Agency (EMA) guidance to ensure patient safety, even though these formulation changes might seem minor. Therefore, further studies are needed to explore the potential role of ethanol, PS80 and the unbound fraction of DTX in the development of enterocolitis in patients treated with DTX.
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Affiliation(s)
- Roy Pétronille
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France.
| | - Do Bernard
- Pharmacy Department, Hôpital Henri Mondor, Créteil, F-94010, France; University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 Rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France
| | | | | | - Fleury Thomas
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France
| | - Conq Jérôme
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France
| | - Da Costa Eloïse
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France
| | - Pierron Gérard
- Centre National de La Recherche Scientifique, UMR-8122, Institut Gustave Roussy, Villejuif 94805, France
| | - Souquere Sylvie
- Centre National de La Recherche Scientifique, UMR-8122, Institut Gustave Roussy, Villejuif 94805, France
| | - Solgadi Audrey
- University of Paris-Sud, Department of Pharmacy, Laboratory "Matériaux et Santé" EA 401, 5 Rue Jean Baptiste Clément, 92296 Châtenay-Malabry, France
| | - Lemare François
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France
| | - Delaloge Suzette
- Department of Cancer Medicine, Gustave Roussy, 114 Rue Edouard Vaillant, 94800 Villejuif, France
| | - Paul Muriel
- Pharmacy Department, Hôpital Henri Mondor, Créteil, F-94010, France
| | - Annereau Maxime
- Pharmacy Department, Gustave Roussy, Villejuif, F-94805, France
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Graf T, Abstiens K, Wedekind F, Elger C, Haindl M, Wurth C, Leiss M. Controlled polysorbate 20 hydrolysis - A new approach to assess the impact of polysorbate 20 degradation on biopharmaceutical product quality in shortened time. Eur J Pharm Biopharm 2020; 152:318-326. [PMID: 32445968 DOI: 10.1016/j.ejpb.2020.05.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/15/2020] [Accepted: 05/17/2020] [Indexed: 11/17/2022]
Abstract
Hydrolysis of polysorbate in biopharmaceutical liquid formulations upon long-term storage represents a risk factor, since reduction of the intact surfactant concentration may compromise protein stability. Moreover, accumulation of polysorbate degradation products is associated with the formation of particulates potentially affecting drug product stability and quality. These effects are conventionally assessed by real-time end-of-shelf life studies constituting an integral yet lengthy process of formulation development. To accelerate this procedure, we describe here a powerful tool to conduct shake stress studies based on the controlled hydrolysis of polysorbate 20 by beads-immobilized lipases. For this purpose, the production of stable, partially degraded material characterized by a representative presence of non-emulsifying degradants such as ethoxylated sorbitan and free fatty acids was monitored by state-of-the-art chromatographic methods ensuring realistic pharmaceutical conditions. Freeze-thaw, shaking and shipping stress studies of a mAb formulation did not only demonstrate that this approach is useful to determine the critical degradation level impairing drug product quality, but furthermore revealed significant differences in protective effects depending on the hydrolysis pattern. As these results emphasize, the outlined strategy may support formulation scientists to unveil the interrelationship between polysorbate hydrolysis products and stabilization of the active pharmaceutical ingredient in a holistic and time-saving manner.
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Affiliation(s)
- Tobias Graf
- Pharma Technical Development Analytics, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Kathrin Abstiens
- Pharma Technical Development Biologics, F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel 4054, Switzerland
| | - Frank Wedekind
- Instrumental Analytics, Early Development & Reagent Design, Centralised and Point of Care Solutions, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Carsten Elger
- Pharma Technical Development Analytics, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Markus Haindl
- Pharma Technical Development Analytics, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Christine Wurth
- Pharma Technical Development Biologics, F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel 4054, Switzerland
| | - Michael Leiss
- Pharma Technical Development Analytics, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany.
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31
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Brovč EV, Mravljak J, Šink R, Pajk S. Rational design to biologics development: The polysorbates point of view. Int J Pharm 2020; 581:119285. [PMID: 32240804 DOI: 10.1016/j.ijpharm.2020.119285] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 12/29/2022]
Abstract
Formulation development is an essential part of any biopharmaceuticals development programme, and this will affect quality, safety and efficacy of the final drug product. The vast majority of biopharmaceuticals on the market are therapeutic proteins; however, these are less stable compared to conventional pharmaceuticals. To counter aggregation, denaturation and surface adsorption of proteins in solution, surfactants are added to the formulations; however, the choice of the best formulation is a challenge that is faced during formulation development. Polysorbates are the most widely used surfactants in the pharmaceutical industry and are presented in >80% of commercial monoclonal antibody formulations. In this review, we provide a general overview of polysorbates and their issues, and the characteristics that have to be taken into account during formulation development. Degradation of polysorbates, namely by hydrolysis and/or oxidation, is one of the main concerns associated with their use. Furthermore, degradation of polysorbates is determined by formulation composition, pH and storage conditions, therefore underlining the importance and complexity of protein formulation development using polysorbates. A need-based approach should be used for correct selection of excipients in protein formulations that contain polysorbates.
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Affiliation(s)
- Ema Valentina Brovč
- Chair of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, SI-1000 Ljubljana, Slovenia; Global Drug Development Technical Research & Development, Novartis, Biologics Technical Development Mengeš, Drug Product Development, Lek Pharmaceuticals d.d., Kolodvorska 27, SI-1234 Mengeš, Slovenia
| | - Janez Mravljak
- Chair of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, SI-1000 Ljubljana, Slovenia
| | - Roman Šink
- Global Drug Development Technical Research & Development, Novartis, Biologics Technical Development Mengeš, Drug Product Development, Lek Pharmaceuticals d.d., Kolodvorska 27, SI-1234 Mengeš, Slovenia
| | - Stane Pajk
- Chair of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, SI-1000 Ljubljana, Slovenia.
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32
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Acidic and alkaline hydrolysis of polysorbates under aqueous conditions: Towards understanding polysorbate degradation in biopharmaceutical formulations. Eur J Pharm Sci 2020; 144:105211. [DOI: 10.1016/j.ejps.2019.105211] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/10/2019] [Accepted: 12/31/2019] [Indexed: 11/21/2022]
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33
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Mondal B, Kote M, Lunagariya C, Patel M. Development of a simple high performance liquid chromatography (HPLC)/evaporative light scattering detector (ELSD) method to determine Polysorbate 80 in a pharmaceutical formulation. Saudi Pharm J 2020; 28:325-328. [PMID: 32194334 PMCID: PMC7078541 DOI: 10.1016/j.jsps.2020.01.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 01/27/2020] [Indexed: 10/31/2022] Open
Abstract
The amount of polysorbate 80 in pharmaceutical formulations affects the product quality and efficacy. A reliable test method is required to quantify the amount of Polysorbate 80 present in the drug product formulations. The test method for the determination of Polysorbate 80 may be used during process development and final product quality assessment. A simple, fast and efficient quantitative method, making use of HPLC-ELSD and a C18 column without sample pretreatment was developed. The developed method demonstrated specificity to polysorbate 80 with high precision as indicated by percent relative standard deviation (%RSD) of 3.0% for six determinations. The accuracy of this method for the determination of polysorbate 80 in a pharmaceutical formulation was demonstrated with an overall recovery of 94.9%.
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Affiliation(s)
- Bikash Mondal
- Research and Development, Akorn Pharmaceuticals, 50 Lake View Parkway, Suite#112, Vernon Hills, IL, 60061, United States
| | - Mahesh Kote
- Research and Development, Akorn Pharmaceuticals, 50 Lake View Parkway, Suite#112, Vernon Hills, IL, 60061, United States
| | - Chandrakant Lunagariya
- Research and Development, Akorn Pharmaceuticals, 50 Lake View Parkway, Suite#112, Vernon Hills, IL, 60061, United States
| | - Milan Patel
- Research and Development, Akorn Pharmaceuticals, 50 Lake View Parkway, Suite#112, Vernon Hills, IL, 60061, United States
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34
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Nilsson EJ, Lind TK, Scherer D, Skansberger T, Mortensen K, Engblom J, Kocherbitov V. Mechanisms of crystallisation in polysorbates and sorbitan esters. CrystEngComm 2020. [DOI: 10.1039/d0ce00236d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solid-state behaviour of the commonly used pharmaceutical excipient polysorbates, and their non-ethoxylated equivalents.
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Affiliation(s)
- Emelie J. Nilsson
- Biomedical Sciences
- Faculty of Health and Society
- Malmö University
- SE-205 06 Malmö
- Sweden
| | - Tania K. Lind
- Biomedical Sciences
- Faculty of Health and Society
- Malmö University
- SE-205 06 Malmö
- Sweden
| | | | - Tatyana Skansberger
- Biomedical Sciences
- Faculty of Health and Society
- Malmö University
- SE-205 06 Malmö
- Sweden
| | - Kell Mortensen
- Niels Bohr Institute
- University of Copenhagen
- DK-2100 Copenhagen
- Denmark
| | - Johan Engblom
- Biomedical Sciences
- Faculty of Health and Society
- Malmö University
- SE-205 06 Malmö
- Sweden
| | - Vitaly Kocherbitov
- Biomedical Sciences
- Faculty of Health and Society
- Malmö University
- SE-205 06 Malmö
- Sweden
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35
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Yang K, Hewarathna A, Geerlof-Vidavsky I, Rao VA, Gryniewicz-Ruzicka C, Keire D. Screening of Polysorbate-80 Composition by High Resolution Mass Spectrometry with Rapid H/D Exchange. Anal Chem 2019; 91:14649-14656. [PMID: 31638787 DOI: 10.1021/acs.analchem.9b03809] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Polysorbate (PS) is a widely used polymeric excipient in biotherapeutic formulations to stabilize and protect protein drugs. Commercial PS is a highly heterogeneous mixture of structurally related components. PS composition can impact the stabilizer performance of PS in formulated protein drugs. Characterization of PS heterogeneity is, however, analytically challenging. In this work, a high-throughput screening protocol is presented for the profiling of the PS-80 polysorbate form using high resolution mass spectrometry (HRMS) coupled with a rapid hydrogen/deuterium (H/D) exchange in deuterated methanol. The protocol takes advantage of accurate mass measurements from HRMS analysis and utilizes H/D exchange-induced mass shifts that are characteristic to structures (particularly the number of terminal hydroxyl groups) of PS molecules to definitively identify species. In particular, mass shifts caused by deuterium uptake were used (1) to confirm molecular identities assigned by accurate mass measurements (which adds an extra level of identification confidence) and (2) to differentiate isomers that have an identical mass (thus, undistinguishable by high mass accuracy), but differ in the number of terminal hydroxyls. These data were input to an automated searching algorithm against a molecular mass database covering over 17000 potential PS-80 molecular species. The identified species were then visualized with Kendrick Mass Defect plots. The analysis protocol identified and profiled over 180 species from PS-80 samples in a high-throughput fashion without requiring chromatographic separation to reduce complexity of mixtures or tandem mass spectrometric analysis to conduct structural elucidation.
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Affiliation(s)
- Kui Yang
- Division of Pharmaceutical Analysis, Office of Testing and Research, Center for Drug Evaluation and Research , U.S. Food and Drug Administration , St. Louis , Missouri 63110 , United States
| | - Asha Hewarathna
- Division of Pharmaceutical Analysis, Office of Testing and Research, Center for Drug Evaluation and Research , U.S. Food and Drug Administration , St. Louis , Missouri 63110 , United States
| | - Ilan Geerlof-Vidavsky
- Division of Pharmaceutical Analysis, Office of Testing and Research, Center for Drug Evaluation and Research , U.S. Food and Drug Administration , St. Louis , Missouri 63110 , United States
| | - V Ashutosh Rao
- Division of Biotechnology Review and Research III, Office of Biotechnology Products, Center for Drug Evaluation and Research , U.S. Food and Drug Administration , Silver Spring , Maryland 20903 , United States
| | - Connie Gryniewicz-Ruzicka
- Division of Pharmaceutical Analysis, Office of Testing and Research, Center for Drug Evaluation and Research , U.S. Food and Drug Administration , St. Louis , Missouri 63110 , United States
| | - David Keire
- Division of Pharmaceutical Analysis, Office of Testing and Research, Center for Drug Evaluation and Research , U.S. Food and Drug Administration , St. Louis , Missouri 63110 , United States
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36
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Grabarek AD, Bozic U, Rousel J, Menzen T, Kranz W, Wuchner K, Jiskoot W, Hawe A. What Makes Polysorbate Functional? Impact of Polysorbate 80 Grade and Quality on IgG Stability During Mechanical Stress. J Pharm Sci 2019; 109:871-880. [PMID: 31614127 DOI: 10.1016/j.xphs.2019.10.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/04/2019] [Accepted: 10/08/2019] [Indexed: 11/18/2022]
Abstract
Polysorbate 80 (PS80) is a commonly used surfactant in therapeutic protein formulations to mitigate adsorption and interface-induced protein aggregation. Several PS80 grades and qualities are available on the market for parenteral application. The role of PS80 grade on protein stability remains debatable, and the impact of (partially) degraded PS on protein aggregation is not yet well understood. In our study, a monoclonal antibody (IgG) was subjected to 3 different mechanical stress conditions in the presence of multicompendial (MC) and Chinese pharmacopeia (ChP) grade PS80. Furthermore, IgG formulations were spiked with (partly) hydrolyzed PS80 to investigate the effect of PS80 degradants on protein stability. PS80 functionality was assessed by measuring the extent of protein aggregation and particle formation induced during mechanical stress by using size-exclusion chromatography, dynamic light scattering, backgrounded membrane imaging, and flow imaging microscopy. No distinguishable differences in PS80 functionality between MC and ChP grade were observed in the 3 stress tests. However, with increasing degree of PS80 hydrolysis, higher counts of subvisible particles were measured after stress. Furthermore, higher levels of PS80 degradants at a constant PS80 concentration may destabilize the IgG. In conclusion, MC and ChP grade PS80 are equally protective, but PS80 degradants compromise IgG stability.
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Affiliation(s)
- Adam Dariusz Grabarek
- Coriolis Pharma Research, Fraunhoferstr. 18b, 82152 Martinsried, Germany; Division of BioTherapeutics, Leiden Academic Centre for Drug Research (LACDR), Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands
| | - Ula Bozic
- Coriolis Pharma Research, Fraunhoferstr. 18b, 82152 Martinsried, Germany
| | - Jannik Rousel
- Coriolis Pharma Research, Fraunhoferstr. 18b, 82152 Martinsried, Germany; Division of BioTherapeutics, Leiden Academic Centre for Drug Research (LACDR), Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands
| | - Tim Menzen
- Coriolis Pharma Research, Fraunhoferstr. 18b, 82152 Martinsried, Germany
| | - Wendelin Kranz
- Coriolis Pharma Research, Fraunhoferstr. 18b, 82152 Martinsried, Germany
| | - Klaus Wuchner
- Janssen Research & Development, Pharmaceutical Development & Manufacturing Sciences, Large Molecule Analytical Development, Schaffhausen, Switzerland
| | - Wim Jiskoot
- Coriolis Pharma Research, Fraunhoferstr. 18b, 82152 Martinsried, Germany; Division of BioTherapeutics, Leiden Academic Centre for Drug Research (LACDR), Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands
| | - Andrea Hawe
- Coriolis Pharma Research, Fraunhoferstr. 18b, 82152 Martinsried, Germany.
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Puschmann J, Evers DH, Müller-Goymann CC, Herbig ME. Development of a design of experiments optimized method for quantification of polysorbate 80 based on oleic acid using UHPLC-MS. J Chromatogr A 2019; 1599:136-143. [DOI: 10.1016/j.chroma.2019.04.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 04/02/2019] [Accepted: 04/07/2019] [Indexed: 10/27/2022]
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38
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Monitoring polysorbate hydrolysis in biopharmaceuticals using a QC-ready free fatty acid quantification method. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1116:1-8. [PMID: 30951966 DOI: 10.1016/j.jchromb.2019.03.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/24/2019] [Accepted: 03/25/2019] [Indexed: 10/27/2022]
Abstract
Hydrolysis of the non-ionic surfactant polysorbate upon long-term storage poses significant challenges to development of biopharmaceutical liquid formulations. Low concentrations of intact surfactant may compromise its protective properties and thus affect protein stability. In addition, accumulation of polysorbate hydrolysis products is increasingly put into context with the formation of visible and subvisible particulates based on the low solubility of the main degradation products. Despite of this potential negative impact on product quality, quantification of the released free fatty acids is performed commonly in an indirect and consequently insensitive manner by determining the remaining PS content or by cumbersome methods, which are unsuitable for routine testing in quality control laboratories. For this purpose, this study describes the development and qualification of a label-free, reliable liquid-chromatography single quad mass detector (LC-QDa)-based method capable of resolving slight changes in the free fatty acid profile which can be readily integrated into quality control facilities. The practical utility of the herein described method is outlined by a case study on the real-time storage stability of a formulated monoclonal antibody.
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Dwivedi M, Blech M, Presser I, Garidel P. Polysorbate degradation in biotherapeutic formulations: Identification and discussion of current root causes. Int J Pharm 2018; 552:422-436. [DOI: 10.1016/j.ijpharm.2018.10.008] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 10/02/2018] [Accepted: 10/04/2018] [Indexed: 11/17/2022]
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40
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Polyethylene Glycol Exposure with Antihemophilic Factor (Recombinant), PEGylated (rurioctocog alfa pegol) and Other Therapies Indicated for the Pediatric Population: History and Safety. Pharmaceuticals (Basel) 2018; 11:ph11030075. [PMID: 30049994 PMCID: PMC6160981 DOI: 10.3390/ph11030075] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/21/2018] [Accepted: 07/23/2018] [Indexed: 12/31/2022] Open
Abstract
Polyethylene glycol (PEG) is an inert, water soluble polymer, used for decades in pharmaceuticals. Although PEG is considered safe, concerns persist about the potential adverse effects of long-term exposure to PEG-containing therapies, specifically in children, following the introduction of PEGylated recombinant factor products used for the treatment of hemophilia. Given the absence of long-term surveillance data, and to evaluate the potential risk, we estimated PEG exposure in the pediatric population receiving PEGylated therapies with pediatric indications administered intravenously or intramuscularly. We used a range of pediatric weights and doses based on prescribing information (PI) or treatment guidelines. PIs and reporting websites were searched for information about adverse events (AEs). For a child weighing 50 kg on the highest prophylactic dose of a FVIII product, the range of total PEG exposure was 40–21,840 mg/year; for factor IX (FIX) products, the range was 13–1342 mg/year; and for other products, the range was 383–26,743 mg/year, primarily as a derivative excipient. No AE patterns attributable to PEG were found for any of these products, including potential renal, neurological, or hepatic AEs. Our analyses suggest the pediatric population has had substantial exposure to PEG for several decades, with no evidence of adverse consequences.
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Are Injection Site Reactions in Monoclonal Antibody Therapies Caused by Polysorbate Excipient Degradants? J Pharm Sci 2018; 107:2735-2741. [PMID: 30055223 DOI: 10.1016/j.xphs.2018.07.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 07/11/2018] [Accepted: 07/17/2018] [Indexed: 12/22/2022]
Abstract
Injection site reactions (ISRs) and other adverse side effects are commonly observed during therapy with biologics. These hypersensitivity-related side effects can vary from simple rash to life-threatening anaphylactic reaction and may be linked to the immunogenicity of the drug including formation of antidrug antibodies. Reactions can also occur as a consequence of excipients in the product. We report the case of a patient who developed erythematous ISRs to both commercial PCSK9i formulations and had to go off therapy even though efficacy was not impacted. Skin testing showed that the patient was reacting to the polysorbates. Polysorbates are added to stabilize the biotherapeutic. Polysorbates can also activate complement and lead to a range of acute hypersensitivity and systemic immunostimulation reactions. Oxidative degradation products can function as haptens by reacting with proteins at the injection site. Reactive degradation products may even form adducts with the biologic itself, creating a potential neoantigen. Further research is needed to understand the fundamental causes of ISRs. It is critical that only the highest quality raw material is used, and proper storage conditions are employed to minimize degradation of polysorbates in the product. Although complete elimination of ISRs is unlikely, all efforts must be made to minimize them.
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42
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Huang Z, Qiu R, Huang Y, Liu H, Pan Z, Wang L. Rapid Analysis of Fatty Acid Composition in Polysorbate 80 by Gas Chromatography with On-line Pyrolytic Methylation Technique. Chromatographia 2018. [DOI: 10.1007/s10337-018-3488-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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43
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A Newly Identified Impurity in Polysorbate 80, the Long-Chain Ketone 12-Tricosanone, Forms Visible Particles in a Biopharmaceutical Drug Product. J Pharm Sci 2018; 107:1552-1561. [PMID: 29499279 DOI: 10.1016/j.xphs.2018.02.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 02/18/2018] [Accepted: 02/21/2018] [Indexed: 11/24/2022]
Abstract
Visible particles linked to polysorbates (PSs) used in biopharmaceutical drug products (DPs) have been observed repeatedly in recent years as an industry-wide issue, with PS degradation and insoluble degradation products, especially fatty acids and fatty acid esters, being suspected as root cause. We have shown that the visible particles observed in a monoclonal antibody DP solution in vials after 18 months of long-term storage at 5 ± 3°C were neither linked to reduction in PS (PS80) concentration nor to any known PS degradation product, but consist of 12-tricosanone, an impurity present in the raw material PS80, not a degradation product. The occurrence of visible 12-tricosanone particles in DP correlated with the usage of specific PS80 raw material lots, where 12-tricosanone was found as impurity at elevated levels. The quantities detected in these PS80 lots directly translate into the amount found in the respective monoclonal antibody DP batches. This is the first time that a clear correlation between the occurrence of the impurity 12-tricosanone in PS80 and the occurrence of visible particles in DP batches is reported. The observation and techniques described enable the control of this ketone in PS raw materials, providing means to prevent respective visible particle formation in DP.
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Duc C, Pradal M, Sanchez I, Noble J, Tesnière C, Blondin B. A set of nutrient limitations trigger yeast cell death in a nitrogen-dependent manner during wine alcoholic fermentation. PLoS One 2017; 12:e0184838. [PMID: 28922393 PMCID: PMC5602661 DOI: 10.1371/journal.pone.0184838] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 08/29/2017] [Indexed: 12/27/2022] Open
Abstract
Yeast cell death can occur during wine alcoholic fermentation. It is generally considered to result from ethanol stress that impacts membrane integrity. This cell death mainly occurs when grape musts processing reduces lipid availability, resulting in weaker membrane resistance to ethanol. However the mechanisms underlying cell death in these conditions remain unclear. We examined cell death occurrence considering yeast cells ability to elicit an appropriate response to a given nutrient limitation and thus survive starvation. We show here that a set of micronutrients (oleic acid, ergosterol, pantothenic acid and nicotinic acid) in low, growth-restricting concentrations trigger cell death in alcoholic fermentation when nitrogen level is high. We provide evidence that nitrogen signaling is involved in cell death and that either SCH9 deletion or Tor inhibition prevent cell death in several types of micronutrient limitation. Under such limitations, yeast cells fail to acquire any stress resistance and are unable to store glycogen. Unexpectedly, transcriptome analyses did not reveal any major changes in stress genes expression, suggesting that post-transcriptional events critical for stress response were not triggered by micronutrient starvation. Our data point to the fact that yeast cell death results from yeast inability to trigger an appropriate stress response under some conditions of nutrient limitations most likely not encountered by yeast in the wild. Our conclusions provide a novel frame for considering both cell death and the management of nutrients during alcoholic fermentation.
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Affiliation(s)
- Camille Duc
- UMR SPO, INRA, Montpellier SupAgro, Université de Montpellier, Montpellier, France.,Lallemand SAS, Blagnac, France
| | - Martine Pradal
- UMR SPO, INRA, Montpellier SupAgro, Université de Montpellier, Montpellier, France
| | - Isabelle Sanchez
- UMR SPO, INRA, Montpellier SupAgro, Université de Montpellier, Montpellier, France
| | | | - Catherine Tesnière
- UMR SPO, INRA, Montpellier SupAgro, Université de Montpellier, Montpellier, France
| | - Bruno Blondin
- UMR SPO, INRA, Montpellier SupAgro, Université de Montpellier, Montpellier, France
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Engelmaier A, Anderle H, Weber A. Alkaline hydrolysis to increase the selectivity of colorimetric determination of polysorbate. Biologicals 2017; 49:6-14. [DOI: 10.1016/j.biologicals.2017.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 07/13/2017] [Accepted: 07/20/2017] [Indexed: 01/05/2023] Open
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Martos A, Koch W, Jiskoot W, Wuchner K, Winter G, Friess W, Hawe A. Trends on Analytical Characterization of Polysorbates and Their Degradation Products in Biopharmaceutical Formulations. J Pharm Sci 2017; 106:1722-1735. [DOI: 10.1016/j.xphs.2017.03.001] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 03/01/2017] [Accepted: 03/03/2017] [Indexed: 12/01/2022]
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Bou-Chacra N, Melo KJC, Morales IAC, Stippler ES, Kesisoglou F, Yazdanian M, Löbenberg R. Evolution of Choice of Solubility and Dissolution Media After Two Decades of Biopharmaceutical Classification System. AAPS JOURNAL 2017; 19:989-1001. [DOI: 10.1208/s12248-017-0085-5] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 04/11/2017] [Indexed: 11/30/2022]
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Wesdemiotis C. Multidimensional Mass Spectrometry of Synthetic Polymers and Advanced Materials. Angew Chem Int Ed Engl 2017; 56:1452-1464. [PMID: 27712048 DOI: 10.1002/anie.201607003] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/02/2016] [Indexed: 01/06/2023]
Abstract
Multidimensional mass spectrometry interfaces a suitable ionization technique and mass analysis (MS) with fragmentation by tandem mass spectrometry (MS2 ) and an orthogonal online separation method. Separation choices include liquid chromatography (LC) and ion-mobility spectrometry (IMS), in which separation takes place pre-ionization in the solution state or post-ionization in the gas phase, respectively. The MS step provides elemental composition information, while MS2 exploits differences in the bond stabilities of a polymer, yielding connectivity and sequence information. LC conditions can be tuned to separate by polarity, end-group functionality, or hydrodynamic volume, whereas IMS adds selectivity by macromolecular shape and architecture. This Minireview discusses how selected combinations of the MS, MS2 , LC, and IMS dimensions can be applied, together with the appropriate ionization method, to determine the constituents, structures, end groups, sequences, and architectures of a wide variety of homo- and copolymeric materials, including multicomponent blends, supramolecular assemblies, novel hybrid materials, and large cross-linked or nonionizable polymers.
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Affiliation(s)
- Chrys Wesdemiotis
- Department of Chemistry, The University of Akron, Akron, OH, 44325, USA
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Wesdemiotis C. Mehrdimensionale Massenspektrometrie von synthetischen Polymeren und modernen Materialien. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201607003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chrys Wesdemiotis
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
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