Evidence map›Paper›PMID 39687733›Full record

ArticleMolecular therapy. Methods & clinical development2024

Size-exclusion chromatography as a multi-attribute method for process and product characterization of adeno-associated virus.

Sri Hari Raju Mulagapati, Arun Parupudi, Tomasz Witkos, Nick Bond, Xiaoyu Chen, Thomas Linke, Guoling Xi, Albert Ethan Schmelzer, Wei Xu

Abstract read
In one paragraph

Article in Molecular therapy. Methods & clinical development, 2024. 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
  2. Article
  3. Evaluation of Torquetenovirus (TTV) Particle Integrity Utilizing PMAxx™.International journal of molecular sciences · 2025
    Article
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

9 authors.

Sri Hari Raju MulagapatiProcess and Analytical Sciences, BioPharmaceuticals Development (BPD), R&D, AstraZeneca, Gaithersburg, MD, USA.
Arun ParupudiDrug Product and Formulation Sciences, GSK Vaccines, Rockville, MD 20850, USA.
Tomasz WitkosProcess and Analytical Sciences, BioPharmaceuticals Development (BPD), R&D, AstraZeneca, Gaithersburg, MD, USA.
Nick BondProcess and Analytical Sciences, BioPharmaceuticals Development (BPD), R&D, AstraZeneca, Gaithersburg, MD, USA.
Xiaoyu ChenProcess and Analytical Sciences, BioPharmaceuticals Development (BPD), R&D, AstraZeneca, Gaithersburg, MD, USA.
Thomas LinkeProcess and Analytical Sciences, BioPharmaceuticals Development (BPD), R&D, AstraZeneca, Gaithersburg, MD, USA.
Guoling XiProcess and Analytical Sciences, BioPharmaceuticals Development (BPD), R&D, AstraZeneca, Gaithersburg, MD, USA.
Albert Ethan SchmelzerViral Vector Product Development, Process Development and Clinical Supply, Alexion, Boston, MA, USA.
Wei XuProcess and Analytical Sciences, BioPharmaceuticals Development (BPD), R&D, AstraZeneca, Gaithersburg, MD, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Adeno-associated viruses (AAVs) have recently emerged as a leading platform for gene therapy. Due to the complex manufacturing process and structural features of AAVs, extensive process and product characterization studies are required to better understand product quality and batch-to-batch variability. It is, therefore, critical to develop a fast and reliable analytical method to monitor different product quality attributes (PQAs) of AAVs. In this study, we developed a multiple-attribute monitoring (MAM) method for the characterization of AAV PQAs. The MAM method was developed using the separation capability of size-exclusion chromatography (SEC) in connection with multiple in-line detectors: ultraviolet (UV), fluorescence (FLD), multi-angle light scattering (MALS), and refractive index (RI). We demonstrate that our SEC-based MAM method can be used to measure different PQAs, including genome and capsid titer, purity, aggregation, and full/empty capsid ratios in a single assay. Our SEC-based MAM method achieves similar results when compared side by side with orthogonal, individual assays such as quantitative polymerase chain reaction (qPCR), enzyme-linked immunosorbent assay (ELISA), and anion-exchange chromatography (AEX). Moreover, here we demonstrate that a simple, label-free, cost-effective, minimum sample requirement, and a high-throughput method can be applied to support process development, product characterization, release, and stability testing.

Indexed as

AAVadeno-associated virusesdifferent in-line detectorshigh-throughput methodMAMmulti-attribute monitoringproduct quality attributesquality control methodSEC-HPLCsize-exclusion chromatography

Identifiers

PMID39687733
PMCPMC11647602

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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.