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Scale-Down Model Development in ambr systems: An Industrial Perspective

Lookup NU author(s): Leon Pybus, Professor Jarka Glassey



This is the authors' accepted manuscript of an article that has been published in its final definitive form by Wiley - V C H Verlag GmbH & Co. KGaA, 2019.

For re-use rights please refer to the publisher's terms and conditions.


© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim High-Throughput (HT) technologies such as miniature bioreactors (MBRs) are increasingly employed within the biopharmaceutical manufacturing industry. Traditionally, these technologies have been utilized for discrete screening approaches during pre-clinical development (e.g., cell line selection and process optimization). However, increasing interest is focused towards their use during late clinical phase process characterization studies as a scale-down model (SDM) of the cGMP manufacturing process. In this review, the authors describe a systematic approach toward SDM development in one of the most widely adopted MBRs, the ambr 15 and 250 mL (Sartorius Stedim Biotech) systems. Recent efforts have shown promise in qualifying ambr systems as SDMs to support more efficient, robust and safe biomanufacturing processes. The authors suggest that combinatorial improvements in process understanding (matching of mass transfer and cellular stress between scales through computational fluid dynamics and in vitro analysis), experimental design (advanced risk assessment and statistical design of experiments), and data analysis (combining uni- and multi-variate techniques) will ultimately yield ambr SDMs applicable for future regulatory submissions.

Publication metadata

Author(s): Sandner V, Pybus LP, McCreath G, Glassey J

Publication type: Article

Publication status: Published

Journal: Biotechnology Journal

Year: 2019

Volume: 14

Issue: 4

Print publication date: 01/04/2019

Online publication date: 23/10/2018

Acceptance date: 02/04/2018

Date deposited: 25/11/2019

ISSN (print): 1860-6768

ISSN (electronic): 1860-7314

Publisher: Wiley - V C H Verlag GmbH & Co. KGaA


DOI: 10.1002/biot.201700766


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Funder referenceFunder name
643056European Commission