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Jing SY, Shi C, Gao D, Wang HB, Yao SJ, Lin DQ. Improved process design for monoclonal antibody charge variants separation with multicolumn counter-current solvent gradient purification. J Chromatogr A 2023; 1707:464292. [PMID: 37586302 DOI: 10.1016/j.chroma.2023.464292] [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: 05/16/2023] [Revised: 07/30/2023] [Accepted: 08/08/2023] [Indexed: 08/18/2023]
Abstract
The multicolumn counter-current solvent gradient purification (MCSGP) method has proven effective in addressing the issue of elution profile overlap for difficult-to-separate proteins, leading to improved purity and recovery. However, during the MCSGP process, the flow rate and proportion of loaded proteins undergo changes, causing a significant discrepancy between the elution profiles of batch process design and the actual MCSGP process. This mismatch negatively impacts the purity and recovery of the target protein. To address this challenge, an improved process design (reDesign) was proposed with the first-run MCSGP to mimic the actual continuous process and obtain elution profiles that closely resemble the real ones. The reDesign was demonstrated with both a model protein mixture and a sample of monoclonal antibody (mAb) with charge variants. For model protein mixture, the reDesign-based MCSGP process (reMCSGP) showed a remarkable improvement in recovery, increasing from 83.6% to 97.8% while maintaining a purity of more than 95%. For mAb sample, the recovery of reMCSGP improved significantly to 93.9%, surpassing the performance of normal MCSGP processes at a given purity level of more than 84%. In general, the new process design strategy developed in this work could generate a more representative elution profile that closely mirrors actual conditions in continuous processes, which enhances the separation performance of MCSGP.
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Affiliation(s)
- Shu-Ying Jing
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang Key Laboratory of Smart Biomaterials, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Ce Shi
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang Key Laboratory of Smart Biomaterials, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Dong Gao
- Hisun Biopharmaceutical Co., Ltd., Hangzhou 311404, China
| | - Hai-Bin Wang
- Hisun Biopharmaceutical Co., Ltd., Hangzhou 311404, China
| | - Shan-Jing Yao
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang Key Laboratory of Smart Biomaterials, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Dong-Qiang Lin
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang Key Laboratory of Smart Biomaterials, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China.
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Kim TK, Bham AA, Fioretti I, Angelo J, Xu X, Ghose S, Morbidelli M, Sponchioni M. Role of the gradient slope during the product internal recycling for the multicolumn countercurrent solvent gradient purification of PEGylated proteins. J Chromatogr A 2023; 1692:463868. [PMID: 36803771 DOI: 10.1016/j.chroma.2023.463868] [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: 11/11/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/11/2023]
Abstract
Protein PEGylation, i.e. functionalization with poly(ethylene glycol) chains, has been demonstrated an efficient way to improve the therapeutic index of these biopharmaceuticals. We demonstrated that Multicolumn Countercurrent Solvent Gradient Purification (MCSGP) is an efficient process for the separation of PEGylated proteins (Kim et al., Ind. and Eng. Chem. Res. 2021, 60, 29, 10764-10776), thanks to the internal recycling of product-containing side fractions. This recycling phase plays a critical role in the economy of MCSGP as it avoids wasting valuable product, but at the same time impacts its productivity extending the overall process duration. In this study, our aim is to elucidate the role of the gradient slope within this recycling stage on the yield and productivity of MCSGP for two case-studies: PEGylated lysozyme and an industrially relevant PEGylated protein. While all the examples of MCSGP in the literature refer to a single gradient slope in the elution phase, for the first time we systematically investigate three different gradient configurations: i) a single gradient slope throughout the entire elution, ii) recycling with an increased gradient slope, to shed light on the competition between volume of the recycled fraction and required inline dilution and iii) an isocratic elution during the recycling phase. The dual gradient elution proved to be a valuable solution for boosting the recovery of high-value products, with the potential for alleviating the pressure on the upstream processing.
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Affiliation(s)
- Tae Keun Kim
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7 20131 Milano, Italy
| | - Abdallah Ayub Bham
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7 20131 Milano, Italy
| | - Ismaele Fioretti
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7 20131 Milano, Italy
| | - James Angelo
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb, Inc., Devens, MA, 01434, USA
| | - Xuankuo Xu
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb, Inc., Devens, MA, 01434, USA
| | - Sanchayita Ghose
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb, Inc., Devens, MA, 01434, USA
| | - Massimo Morbidelli
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7 20131 Milano, Italy
| | - Mattia Sponchioni
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7 20131 Milano, Italy.
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Kim TK, Sechi B, Romero Conde JJ, Angelo J, Xu X, Ghose S, Morbidelli M, Sponchioni M. Design and economic investigation of a Multicolumn Countercurrent Solvent Gradient Purification unit for the separation of an industrially relevant PEGylated protein. J Chromatogr A 2022; 1681:463487. [PMID: 36115185 DOI: 10.1016/j.chroma.2022.463487] [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: 07/08/2022] [Revised: 08/31/2022] [Accepted: 09/05/2022] [Indexed: 10/14/2022]
Abstract
Conjugation of biopharmaceuticals to polyethylene glycol chains, known as PEGylation, is nowadays an efficient and widely exploited strategy to improve critical properties of the active molecule, including stability, biodistribution profile, and reduced clearance. A crucial step in the manufacturing of PEGylated drugs is the purification. The reference process in industrial settings is single-column chromatography, which can meet the stringent purity requisites only at the expenses of poor product recoveries. A valuable solution to this trade-off is the Multicolumn Countercurrent Solvent Gradient Purification (MCSGP), which allows the internal and automated recycling of product-containing side fractions that are typically discarded in the batch processes. In this study, an ad hoc design procedure was applied to the single-column batch purification of an industrially relevant PEGylated protein, with the aim of defining optimal collection window, elution duration and elution buffer ionic strength to be then transferred to the MCSGP. This significantly alleviates the design of the continuous operation, subjected to manifold process parameters. The MCSGP designed by directly transferring the optimal parameters allowed to improve the yield and productivity by 8.2% and 17.8%, respectively, when compared to the corresponding optimized batch process, ensuring a purity specification of 98.0%. Once the efficacy of MCSGP was demonstrated, a detailed analysis of its cost of goods was performed and compared to the case of single-column purification. To the best of our knowledge, this is the first example of a detailed economic investigation of the MCSGP across different manufacturing scenarios and process cadences of industrial relevance, which demonstrated not only the viability of this continuous technology but also its flexibility.
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Affiliation(s)
- Tae Keun Kim
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7, Milano 20131, Italy
| | - Benedetta Sechi
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7, Milano 20131, Italy
| | - Juan Jose Romero Conde
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb Inc., Devens, MA 01434, USA
| | - James Angelo
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb Inc., Devens, MA 01434, USA
| | - Xuankuo Xu
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb Inc., Devens, MA 01434, USA
| | - Sanchayita Ghose
- Biologics Process Development, Global Product Development and Supply, Bristol Myers Squibb Inc., Devens, MA 01434, USA
| | - Massimo Morbidelli
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7, Milano 20131, Italy
| | - Mattia Sponchioni
- Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Via Mancinelli 7, Milano 20131, Italy.
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