Application of the Quality-by-Design (QbD) Approach for Erythropoietin Alpha Purification

Tae Kyu Kim, Kwang Seok Seo, Sang Oh Kwon, Thomas A. Little, Mijung Kim, Chan Wha Kim

Research output: Contribution to journalArticle

Abstract

This study was aimed at process characterization and improving quality of purification of erythropoietin α, a biopharmaceutical agent. In biopharmaceutical manufacturing, quality should always be targeted to ensure safety and efficacy. Design-of-experiments–based approaches have been explored to rapidly and efficiently achieve an optimized yield and an increased understanding of a product and process variables affecting the product's critical quality attributes in the biopharmaceutical industry; this system is known as the quality-by-design approach. Changes in three critical process parameters—buffer pH, flow rate, and loading amount—were evaluated. Process characterization was conducted on a scaled-down model previously validated by comparison with data from a large-scale production facility. Seven critical quality attributes—relative aggregate content, host cell protein, host cell deoxynucleotides, endotoxin, Z-value (N-glycan score), relative content of charge isomers, and step yield—were analyzed. Multivariate regression analysis was performed to establish statistical prediction models for performance indicators and quality attributes; accordingly, we constructed contour plots and conducted a Monte Carlo simulation to clarify the design space. As a result of the optimization analysis of the purification process, it was confirmed that proven acceptance ranges were optimized as follows: loading amount (mg/mL) 0.4–4.0, buffer pH 7.0–8.0, and flow rate (mL/min) 0.5–1.6.

Original languageEnglish
JournalBulletin of the Korean Chemical Society
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Erythropoietin
Purification
Flow rate
Endotoxins
Regression analysis
Isomers
Polysaccharides
Buffers
Industry
Proteins

Keywords

  • Critical process parameter
  • Critical quality attributes
  • Design space
  • Erythropoietin alpha purification
  • Quality by design

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Application of the Quality-by-Design (QbD) Approach for Erythropoietin Alpha Purification. / Kim, Tae Kyu; Seo, Kwang Seok; Kwon, Sang Oh; Little, Thomas A.; Kim, Mijung; Kim, Chan Wha.

In: Bulletin of the Korean Chemical Society, 01.01.2019.

Research output: Contribution to journalArticle

Kim, Tae Kyu ; Seo, Kwang Seok ; Kwon, Sang Oh ; Little, Thomas A. ; Kim, Mijung ; Kim, Chan Wha. / Application of the Quality-by-Design (QbD) Approach for Erythropoietin Alpha Purification. In: Bulletin of the Korean Chemical Society. 2019.
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