Evidence map›Paper›PMID 31876441›Full record

ArticlemAbs

Rapid two-dimensional Protein-A size exclusion chromatography of monoclonal antibodies for titer and aggregation measurements from harvested cell culture fluid samples.

Zachary D Dunn, Jayesh Desai, Gabriel M Leme, Dwight R Stoll, Douglas D Richardson

Abstract read
In one paragraph

Article in mAbs. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Zachary D DunnAnalytical Research and Development, Merck & Co. Inc., Kenilworth, NJ, USA.
Jayesh DesaiProcess Research and Development, Merck & Co. Inc., Kenilworth, NJ, USA.
Gabriel M LemeDepartment of Chemistry, Gustavus Adolphus College, St. Peter, MN, USA.
Dwight R StollDepartment of Chemistry, Gustavus Adolphus College, St. Peter, MN, USA.ORCID 0000-0002-4070-9132
Douglas D RichardsonAnalytical Research and Development, Merck & Co. Inc., Kenilworth, NJ, USA.ORCID 0000-0001-8488-6758

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The success of monoclonal antibody (mAb) therapeutics have increased pharmaceutical investment in mAb production, which has led to a greater demand of technologies to efficiently characterize these biotherapeutics. The large size and heterogeneity of mAbs require the measurement of multiple critical quality attributes (CQAs) during production. The current workflow to measure CQAs of antibodies involves multiple one-dimensional liquid chromatography methods, including Protein-A (ProA), ion-exchange (IEX), reversed-phase, size exclusion (SEC), hydrophilic interaction, and hydrophobic interaction (HIC). Recent advances in commercial two-dimensional liquid chromatography (2D-LC) affords an opportunity to perform two separations at once to measure multiple CQAs in a single assay. Here, we describe the development of a 2D ProA-SEC method using entirely commercially available instrumentation. Each individual separation and the transfer of material between dimensions were optimized to develop a method that measures titer and aggregation of a target antibody from harvested cell culture fluid in under 5 min. We determined the effects of each parameter of the method on mAb recovery and stability, as well as speed, robustness, resolution, and accuracy of the aggregate amount detected in the second dimension (

Indexed as

Antibodies, MonoclonalCells, CulturedChromatography, GelChromatography, LiquidCulture Media, ConditionedHumansHybridomasHydrophobic and Hydrophilic InteractionsProtein Aggregation, PathologicalStaphylococcal Protein AAntibodies, MonoclonalCulture Media, ConditionedStaphylococcal Protein Aaggregationmonoclonal antibodyprotein-Asize exclusion chromatographytiterTwo-dimensional liquid chromatography

Identifiers

PMID31876441
PMCPMC6973321

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.