2019
DOI: 10.1002/btpr.2810
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Multistage continuous countercurrent diafiltration for formulation of monoclonal antibodies

Abstract: There is growing interest in the development of fully integrated and continuous biomanufacturing processes for the production of monoclonal antibody products. A recent study has demonstrated the feasibility of using a two‐stage countercurrent diafiltration (DF) process for continuous product formulation, but this system did not provide sufficient levels of buffer exchange for most applications. The objective of this study was to design and test a three‐stage countercurrent DF system that could achieve at least… Show more

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Cited by 32 publications
(29 citation statements)
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“…Although traditional diafiltration can provide high degrees of impurity removal in batch processes, this approach is not readily extendable to continuous processing, which is increasingly attractive for large‐scale biomanufacturing 15 . Instead, a countercurrent staged membrane process can be used to achieve the desired degree of washing 16,17 . The extent of impurity removal ( R ) in this type of multistage countercurrent membrane process is given as 18 : R=CfeedC=αN+11α1, with α=QwashQfeed=x1x, where C feed is the concentration of soluble impurities in the feed entering the wash step, C is the concentration of soluble impurities leaving the wash step, Q feed is the feed flow rate, Q wash is the flow rate of the wash buffer, N is the number of stages, and x is the conversion in the membrane module (equal to the ratio of the permeate flow rate to inlet feed flow rate for the membrane module).…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Although traditional diafiltration can provide high degrees of impurity removal in batch processes, this approach is not readily extendable to continuous processing, which is increasingly attractive for large‐scale biomanufacturing 15 . Instead, a countercurrent staged membrane process can be used to achieve the desired degree of washing 16,17 . The extent of impurity removal ( R ) in this type of multistage countercurrent membrane process is given as 18 : R=CfeedC=αN+11α1, with α=QwashQfeed=x1x, where C feed is the concentration of soluble impurities in the feed entering the wash step, C is the concentration of soluble impurities leaving the wash step, Q feed is the feed flow rate, Q wash is the flow rate of the wash buffer, N is the number of stages, and x is the conversion in the membrane module (equal to the ratio of the permeate flow rate to inlet feed flow rate for the membrane module).…”
Section: Introductionmentioning
confidence: 99%
“…15 Instead, a countercurrent staged membrane process can be used to achieve the desired degree of washing. 16,17 The extent of impurity removal (R) in this type of multistage countercurrent membrane process is given as 18 :…”
mentioning
confidence: 99%
“…A countercurrent staged diafiltration process was performed for continuous protein formulation for a polyclonal IgG with Cadence TM Inline concentrators (Nambiar et al, 2017). Cadence TM in-line concentrators (Delta 30 kDa membranes) were used in the three stages to obtain high conversion in a single pass and provided important insights into the design and operation of a continuous process for antibody formulation (Jabra et al, 2019). Countercurrent dialysis for continuous protein formulation and buffer exchange was done using concentrated solutions of IgG with commercially available hollow fiber dialyzers (1.5 and 1.8 m 2 membrane surface area) (Yehl et al, 2019).…”
Section: Continuous Formulationmentioning
confidence: 99%
“…The product then passes through an in‐line diafiltration (ILDF) step made up of several stages of dilution and SPTFF modules. These modules are most efficient when operated in a counter‐current mode (Arnold et al, 2019; Huter & Strube, 2019; Jabra et al, 2019; Nambiar et al, 2018; Rucker‐Pezzini et al, 2018). The final drug substance concentration is achieved through a final SPTFF step.…”
Section: The Common Framework For Integrated and Continuous Manufactumentioning
confidence: 99%