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Griffin VP, Pace S, Ogunyankin MO, Holstein M, Hung J, Dhar P. Understanding the Impact of Combined Hydrodynamic Shear and Interfacial Dilatational Stress, on Interface-Mediated Particle Formation for Monoclonal Antibody Formulations. J Pharm Sci 2024; 113:2081-2092. [PMID: 38615816 DOI: 10.1016/j.xphs.2024.04.009] [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: 12/11/2023] [Revised: 04/09/2024] [Accepted: 04/09/2024] [Indexed: 04/16/2024]
Abstract
During biomanufacturing, several unit operations expose solutions of biologics to multiple stresses, such as hydrodynamic shear forces due to fluid flow and interfacial dilatational stresses due to mechanical agitation or bubble collapse. When these stresses individually act on proteins adsorbed to interfaces, it results in an increase in protein particles in the bulk solution, a phenomenon referred to as interface-induced protein particle formation. However, an understanding of the dominant cause, when multiple stresses are acting simultaneously or sequentially, on interface-induced protein particle formation is limited. In this work, we established a unique set-up using a peristaltic pump and a Langmuir-Pockels trough to study the impact of hydrodynamic shear stress due to pumping and interfacial dilatational stress, on protein particle formation. Our experimental results together demonstrate that for protein solutions subjected to various combinations of stress (i.e., interfacial and hydrodynamic stress in different sequences), surface pressure values during adsorption and when subjected to compression/dilatational stresses, showed no change, suggesting that the interfacial properties of the protein film are not impacted by pumping. The concentration of protein particles is an order of magnitude higher when interfacial dilatational stress is applied at the air-liquid interface, compared to solutions that are only subjected to pumping. Furthermore, the order in which these stresses are applied, have a significant impact on the concentration of protein particles measured in the bulk solution. Together, these studies conclude that for biologics exposed to multiple stresses throughout bioprocessing and manufacturing, exposure to air-liquid interfacial dilatational stress is the predominant mechanism impacting protein particle formation at the interface and in the bulk solution.
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Affiliation(s)
- Valerie P Griffin
- Department of Chemical and Petroleum Engineering, The University of Kansas, 1530 W 15(th) Street, Lawrence, KS 66045, USA
| | - Samantha Pace
- Department of Drug Product, Department of Discovery Pharmaceutics, Bristol-Myers Squibb, Inc., 3551 Lawrenceville Road, Lawrence Township, NJ, 08648, USA
| | - Maria Olu Ogunyankin
- Development, Bristol-Myers Squibb, Inc., One Squibb Drive, New Brunswick, NJ, 08901, USA
| | - Melissa Holstein
- Biologics Development, Bristol-Myers Squibb, Inc., 38 Jackson Road, Devens, MA, 01434, USA
| | - Jessica Hung
- Biologics Development, Bristol-Myers Squibb, Inc., 38 Jackson Road, Devens, MA, 01434, USA
| | - Prajnaparamita Dhar
- Department of Chemical and Petroleum Engineering, The University of Kansas, 1530 W 15(th) Street, Lawrence, KS 66045, USA
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2
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Adler M, Allmendinger A. Filling Unit Operation for Biological Drug Products: Challenges and Considerations. J Pharm Sci 2024; 113:332-344. [PMID: 37992868 DOI: 10.1016/j.xphs.2023.11.017] [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: 06/12/2023] [Revised: 11/15/2023] [Accepted: 11/15/2023] [Indexed: 11/24/2023]
Abstract
One of the key unit operations during the aseptic fill-finish process of parenteral products, such as biologics, is the filling process of the formulated, sterile filtered drug substance into primary packaging containers. The applied filling technology as well as the process performance majorly impacts final drug product quality. The present review provides an overview of commonly used filling technologies during fill-finish operations of biologics including positive displacement pump systems such as radial peristaltic pump, rotary piston pump, rolling diaphragm pump, or innovative systems such as the linear peristaltic pump, as well as time-over-pressure filling technology. The article describes the operating principle of each pump system and reviews advantages and drawbacks. We highlight specific considerations for individual systems, such as the risk of protein particle formation and particle shedding from wear and tear of tubing, and discuss current literature about general challenges associated with the filling process, such as hydrogen peroxide uptake, adsorption phenomena to tubing material, and needle clogging. We suggest process development and process characterization studies to assess the impact of the filling process on product quality, and lastly provide an outlook about the use of disposable equipment during filling operations related to sustainability considerations.
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Affiliation(s)
- Michael Adler
- ten23 health AG, Mattenstr. 22, 4058 Basel, Switzerland
| | - Andrea Allmendinger
- ten23 health AG, Mattenstr. 22, 4058 Basel, Switzerland; Institute of Pharmaceutical Sciences, Department of Pharmaceutics, University of Freiburg, Sonnenstr. 5, 79104 Freiburg, Germany.
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3
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Fanthom TB, Wilson C, Gruber D, Bracewell DG. Solid-Solid Interfacial Contact of Tubing Walls Drives Therapeutic Protein Aggregation During Peristaltic Pumping. J Pharm Sci 2023; 112:3022-3034. [PMID: 37595747 DOI: 10.1016/j.xphs.2023.08.012] [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: 05/05/2023] [Revised: 08/13/2023] [Accepted: 08/13/2023] [Indexed: 08/20/2023]
Abstract
Peristaltic pumping during bioprocessing can cause therapeutic protein loss and aggregation during use. Due to the complexity of this apparatus, root-cause mechanisms behind protein loss have been long sought. We have developed new methodologies isolating various peristaltic pump mechanisms to determine their effect on monomer loss. Closed-loops of peristaltic tubing were used to investigate the effects of peristaltic pump parameters on temperature and monomer loss, whilst two mechanism isolation methodologies are used to isolate occlusion and lateral expansion-relaxation of peristaltic tubing. Heat generated during peristaltic pumping can cause heat-induced monomer loss and the extent of heat gain is dependent on pump speed and tubing type. Peristaltic pump speed was inversely related to the rate of monomer loss whereby reducing speed 2.0-fold increased loss rates by 2.0- to 5.0-fold. Occlusion is a parameter that describes the amount of tubing compression during pumping. Varying this to start the contacting of inner tubing walls is a threshold that caused an immediate 20-30% additional monomer loss and turbidity increase. During occlusion, expansion-relaxation of solid-liquid interfaces and solid-solid interface contact of tubing walls can occur simultaneously. Using two mechanisms isolation methods, the latter mechanism was found to be most destructive and a function of solid-solid contact area, where increasing the contact area 2.0-fold increased monomer loss by 1.6-fold. We establish that a form of solid-solid contact mechanism whereby the contact solid interfaces disrupt adsorbed protein films is the root-cause behind monomer loss and protein aggregation during peristaltic pumping.
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Affiliation(s)
- Thomas B Fanthom
- Department of Biochemical Engineering, Bernard Katz Building, University College London, Gower Street, London, WC1E 6BT, UK
| | - Christopher Wilson
- Ipsen Biopharm, 9 Ash Road North, Wrexham Industrial Estate, Wales, LL13 9UF, UK
| | - David Gruber
- Ipsen Biopharm, 9 Ash Road North, Wrexham Industrial Estate, Wales, LL13 9UF, UK
| | - Daniel G Bracewell
- Department of Biochemical Engineering, Bernard Katz Building, University College London, Gower Street, London, WC1E 6BT, UK.
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4
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Kopp MRG, Grigolato F, Zürcher D, Das TK, Chou D, Wuchner K, Arosio P. Surface-Induced Protein Aggregation and Particle Formation in Biologics: Current Understanding of Mechanisms, Detection and Mitigation Strategies. J Pharm Sci 2023; 112:377-385. [PMID: 36223809 DOI: 10.1016/j.xphs.2022.10.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 10/05/2022] [Accepted: 10/05/2022] [Indexed: 01/12/2023]
Abstract
Protein stability against aggregation is a major quality concern for the production of safe and effective biopharmaceuticals. Amongst the different drivers of protein aggregation, increasing evidence indicates that interactions between proteins and interfaces represent a major risk factor for the formation of protein aggregates in aqueous solutions. Potentially harmful surfaces relevant to biologics manufacturing and storage include air-water and silicone oil-water interfaces as well as materials from different processing units, storage containers, and delivery devices. The impact of some of these surfaces, for instance originating from impurities, can be difficult to predict and control. Moreover, aggregate formation may additionally be complicated by the simultaneous presence of interfacial, hydrodynamic and mechanical stresses, whose contributions may be difficult to deconvolute. As a consequence, it remains difficult to identify the key chemical and physical determinants and define appropriate analytical methods to monitor and predict protein instability at these interfaces. In this review, we first discuss the main mechanisms of surface-induced protein aggregation. We then review the types of contact materials identified as potentially harmful or detected as potential triggers of proteinaceous particle formation in formulations and discuss proposed mitigation strategies. Finally, we present current methods to probe surface-induced instabilities, which represent a starting point towards assays that can be implemented in early-stage screening and formulation development of biologics.
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Affiliation(s)
- Marie R G Kopp
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Fulvio Grigolato
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Dominik Zürcher
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | | | | | | | - Paolo Arosio
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.
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5
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Deiringer N, Frieß W. Reaching the breaking point: Effect of tubing characteristics on protein particle formation during peristaltic pumping. Int J Pharm 2022; 627:122216. [PMID: 36179929 DOI: 10.1016/j.ijpharm.2022.122216] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/12/2022] [Accepted: 09/16/2022] [Indexed: 10/31/2022]
Abstract
Peristaltic pumping has been identified as a cause for protein particle formation during manufacturing of biopharmaceuticals. To give advice on tubing selection, we evaluated the physicochemical parameters and the propensity for tubing and protein particle formation using a monoclonal antibody (mAb) for five different tubings. After pumping, particle levels originating from tubing and protein differed substantially between the tubing types. An overall low shedding of tubing particles by wear was linked to low surface roughness and high abrasion resistance. The formation of mAb particles upon pumping was dependent on the tubing hardness and surface chemistry. Defined stretching of tubing filled with mAb solution revealed that aggregation increased with higher strain beyond the breaking point of the protein film adsorbed to the tubing wall. This is in line with the decrease in protein particle concentration with increasing tubing hardness. Furthermore, material composition influenced particle formation propensity. Faster adsorption to materials with higher hydrophobicity is suspected to lead to a higher protein film renewal rate resulting in higher protein particle counts. Overall, silicone tubing with high hardness led to least protein particles during peristaltic pumping. Results from this study emphasize the need of proper tubing selection to minimize protein particle generation upon pumping.
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Affiliation(s)
- Natalie Deiringer
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Wolfgang Frieß
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-Universität München, Munich, Germany.
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6
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Deiringer N, Friess W. Proteins on the rack: Mechanistic studies on protein particle formation during peristaltic pumping. J Pharm Sci 2022; 111:1370-1378. [PMID: 35122831 DOI: 10.1016/j.xphs.2022.01.035] [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: 11/23/2021] [Revised: 01/29/2022] [Accepted: 01/29/2022] [Indexed: 02/08/2023]
Abstract
Peristaltic pumping can cause protein particle formation. The expected causes were unfolding by heat in the pump head, oxidative stress by cavitation generated during roller movement, interfacial adsorption to the tubing wall and mechanical stress by stretching of the tubing itself. The pump head reached 28°C during experiments stayed well below the onset of the melting point of the proteins. Thus, heat may only be a relevant root cause for proteins containing domains with very low unfolding temperature. Analysis by terephthalic acid dosimetry and protein oxidation via RP-HPLC ruled out major induction of reactive hydroxyl radicals by pumping, indicating that cavitation does not play a significant role in particle generation. Addition of surfactants suppresses protein adsorption to the tubing wall and drastically reduced protein particle formation. This indicates that interfacial protein adsorption is a key element. Repeated stretching of tubing filled with protein solution led to the formation of protein particles, demonstrating that expansion and compression of the protein film on the tubing surface is the second key component for particle formation. Thus, protein particle generation during peristaltic pumping originates from the formation of a protein film on the tubing surface which gets stretched and compressed, leading to film fragments entering the bulk solution. This interplay of protein film formation and its rupture has been also observed at liquid/liquid or liquid/air interfaces.
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Affiliation(s)
- Natalie Deiringer
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Wolfgang Friess
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-Universität München, Munich, Germany.
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7
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Liebner R, Altınoğlu S, Selzer T. A Road Map to GMP Readiness for Protein Therapeutics - Drug Product Process Development for Clinical Supply. J Pharm Sci 2021; 111:608-617. [PMID: 34530002 DOI: 10.1016/j.xphs.2021.09.015] [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: 03/31/2021] [Revised: 09/09/2021] [Accepted: 09/09/2021] [Indexed: 10/20/2022]
Abstract
Biopharmaceuticals for human use present unique challenges during manufacturing, storage, shipment, and administration. Not all drug product process development aspects can and should be studied in detail before entering in first-in human studies (FIH) due to limited resources and the need for new drug candidates to enter phase 1 clinical studies quickly. Whilst activities for formulation development studies are well defined in literature, there is a lack of regulatory guidance for phase appropriate process development studies for clinical supplies. This review summarizes potential process development studies for liquid protein formulations and proposes a phase appropriate testing approach.
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Affiliation(s)
- Robert Liebner
- Chemical Pharmaceutical Development - Department of Pharmaceutical Technologies, Merck KGaA, D-64293 Darmstadt, Germany.
| | - Sarah Altınoğlu
- EMD Serono Research & Development Institute, Inc., MA-01821 Billerica, USA
| | - Torsten Selzer
- Chemical Pharmaceutical Development - Department of Pharmaceutical Technologies, Merck KGaA, D-64293 Darmstadt, Germany
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8
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Roffi K, Li L, Pantazis J. Adsorbed protein film on pump surfaces leads to particle formation during fill-finish manufacturing. Biotechnol Bioeng 2021; 118:2947-2957. [PMID: 33913509 DOI: 10.1002/bit.27801] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 03/29/2021] [Accepted: 04/15/2021] [Indexed: 01/11/2023]
Abstract
During fill-finish manufacturing, therapeutic proteins may aggregate or form subvisible particles in response to the physical stresses encountered within filling pumps. Understanding and quantitating this risk is important since filling may be the last unit operation before the patient receives their dose. We studied particle formation from lab-scale to manufacturing-scale using sensitive and robust protein formulations. Filling experiments with a ceramic rotary piston pump were integrated with a rinse-stripping method to investigate the relationship between protein adsorption and particle formation. For a sensitive protein, multilayer film formation on the piston surface correlated with high levels of subvisible particles in solution. For a robust protein formulation, adsorption and subvisible particle formation were minimal. These results support an aggregation mechanism that is initiated by adsorption to pump surfaces and propagated by mechanical and/or hydrodynamic disruption of the film. The elemental analysis confirmed that ceramic wear debris remained at trace levels and did not contribute appreciably to protein aggregation.
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Affiliation(s)
- Kirk Roffi
- Pfizer, Pharmaceutical Research and Development, 1 Burtt Rd, Andover, Massachusetts, USA
| | - Li Li
- Pfizer, Pharmaceutical Research and Development, 1 Burtt Rd, Andover, Massachusetts, USA
| | - Jacob Pantazis
- University of North Carolina at Chapel Hill School of Medicine
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9
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Challenges for Cell-Based Medicinal Products From a Pharmaceutical Product Perspective. J Pharm Sci 2020; 110:1900-1908. [PMID: 33307042 DOI: 10.1016/j.xphs.2020.11.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 11/19/2020] [Accepted: 11/30/2020] [Indexed: 11/22/2022]
Abstract
Advanced therapy medicinal products (ATMPs), such as somatic cell-therapy medicinal products or tissue-engineered products for human use, offer new and potentially curative opportunities to treat yet untreatable diseases or disorders. For cell-therapy medicinal products (CBMPs), multiple stability and quality challenges exist and relate to the cellular composition and unstable nature of these parenteral preparations. It is the aim of this review to discuss open questions and problems associated with the development, manufacturing and testing of CBMPs from a pharmaceutical drug product perspective. This includes safety, storage and handling, particulates, the choice of container closure systems and integrity. Analytical methods commonly used to evaluate the quality of the final CBMP to ensure patient's safety will be discussed. Particulate contamination in final products deserve special attention since CBMPs cannot be sterile filtered. Visible and sub-visible particles may represent environmental contaminations or may form during storage. They may be introduced from processing materials such as single use product contact materials, ancillary materials, or any components such as primary packaging used for the final product. Currently available analytical methods for detecting particulates may not be easily applicable to CBMPs due to their inherent particulate nature and appearance.
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10
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Deiringer N, Haase C, Wieland K, Zahler S, Haisch C, Friess W. Finding the Needle in the Haystack: High-Resolution Techniques for Characterization of Mixed Protein Particles Containing Shed Silicone Rubber Particles Generated During Pumping. J Pharm Sci 2020; 110:2093-2104. [PMID: 33307040 DOI: 10.1016/j.xphs.2020.12.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 11/19/2020] [Accepted: 12/02/2020] [Indexed: 12/29/2022]
Abstract
During the manufacturing process of biopharmaceuticals, peristaltic pumps are employed at different stages for transferring and dosing of the final product. Commonly used silicone tubings are known for particle shedding from the inner tubing surface due to friction in the pump head. These nanometer sized silicone rubber particles could interfere with proteins. Until now, only mixed protein particles containing micrometer-sized contaminations such as silicone oil have been characterized, detected, and quantified. To overcome the detection limits in particle sizes of contaminants, this study aimed for the definite identification of protein particles containing nanometer sized silicone particles in qualitative and quantitative manner. The mixed particles consisted of silicone rubber particles either coated with a protein monolayer or embedded into protein aggregates. Confocal Raman microscopy allows label free chemical identification of components and 3D particle imaging. Labeling the tubing enables high-resolution imaging via confocal laser scanning microscopy and counting of mixed particles via Imaging Flow Cytometry. Overall, these methods allow the detection and identification of particles of unknown origin and composition and could be a forensic tool for solving problems with contaminations during processing of biopharmaceuticals.
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Affiliation(s)
- Natalie Deiringer
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Christian Haase
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Karin Wieland
- Chair for Analytical Chemistry, Technische Universität München, Munich, Germany
| | - Stefan Zahler
- Department of Pharmacy, Pharmaceutical Biology, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Christoph Haisch
- Chair for Analytical Chemistry, Technische Universität München, Munich, Germany
| | - Wolfgang Friess
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Ludwig-Maximilians-Universität München, Munich, Germany.
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11
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A Review on Mixing-Induced Protein Particle Formation: The Puzzle of Bottom-Mounted Mixers. J Pharm Sci 2020; 109:2363-2374. [DOI: 10.1016/j.xphs.2020.03.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 12/18/2022]
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12
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Daniels AL, Calderon CP, Randolph TW. Machine learning and statistical analyses for extracting and characterizing "fingerprints" of antibody aggregation at container interfaces from flow microscopy images. Biotechnol Bioeng 2020; 117:3322-3335. [PMID: 32667683 DOI: 10.1002/bit.27501] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/01/2020] [Accepted: 07/13/2020] [Indexed: 12/11/2022]
Abstract
Therapeutic proteins are exposed to numerous stresses during their manufacture, shipping, storage and administration to patients, causing them to aggregate and form particles through a variety of different mechanisms. These varied mechanisms generate particle populations with characteristic morphologies, creating "fingerprints" that are reflected in images recorded using flow imaging microscopy. Particle population fingerprints in test samples can be extracted and compared against those of particles produced under baseline conditions using an algorithm that combines machine learning tools such as convolutional neural networks with statistical tools such as nonparametric density estimation and Rosenblatt transform-based goodness-of-fit hypothesis testing. This analysis provides a quantitative method with user-specified type 1 error rates to determine whether the mechanisms that produce particles in test samples differ from particle formation mechanisms operative under baseline conditions. As a demonstration, this algorithm was used to compare particles within intravenous immunoglobulin formulations that were exposed to freeze-thawing and shaking stresses within a variety of different containers. This analysis revealed that seemingly subtle differences in containers (e.g., glass vials from different manufacturers) generated distinguishable particle populations after the stresses were applied. This algorithm can be used to assess the impact of process and formulation changes on aggregation-related product instabilities.
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Affiliation(s)
- Austin L Daniels
- Department of Chemical and Biological Engineering, Center for Pharmaceutical Biotechnology, University of Colorado Boulder, Boulder, Colorado
| | - Christopher P Calderon
- Department of Chemical and Biological Engineering, Center for Pharmaceutical Biotechnology, University of Colorado Boulder, Boulder, Colorado
- Ursa Analytics, Denver, Colorado
| | - Theodore W Randolph
- Department of Chemical and Biological Engineering, Center for Pharmaceutical Biotechnology, University of Colorado Boulder, Boulder, Colorado
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13
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Effects of Tubing Type, Operating Parameters, and Surfactants on Particle Formation During Peristaltic Filling Pump Processing of a mAb Formulation. J Pharm Sci 2020; 109:1439-1448. [DOI: 10.1016/j.xphs.2020.01.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/27/2019] [Accepted: 01/03/2020] [Indexed: 11/21/2022]
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14
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Her C, Carpenter JF. Effects of Tubing Type, Formulation, and Postpumping Agitation on Nanoparticle and Microparticle Formation in Intravenous Immunoglobulin Solutions Processed With a Peristaltic Filling Pump. J Pharm Sci 2020; 109:739-749. [DOI: 10.1016/j.xphs.2019.05.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 05/10/2019] [Accepted: 05/14/2019] [Indexed: 11/29/2022]
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15
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Le Basle Y, Chennell P, Tokhadze N, Astier A, Sautou V. Physicochemical Stability of Monoclonal Antibodies: A Review. J Pharm Sci 2020; 109:169-190. [DOI: 10.1016/j.xphs.2019.08.009] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/19/2019] [Accepted: 08/19/2019] [Indexed: 01/10/2023]
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