Product-Related Impurities in Clinical-Grade Recombinant AAV Vectors: Characterization and Risk Assessment

Adeno-associated virus (AAV)-based vectors expressing therapeutic genes continue to demonstrate great promise for the treatment of a wide variety of diseases and together with other gene transfer vectors represent an emerging new therapeutic paradigm comparable in potential impact on human health to...

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Main Author: J. Fraser Wright
Format: Article
Language:English
Published: MDPI AG 2014-03-01
Series:Biomedicines
Subjects:
Online Access:http://www.mdpi.com/2227-9059/2/1/80
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author J. Fraser Wright
author_facet J. Fraser Wright
author_sort J. Fraser Wright
collection DOAJ
description Adeno-associated virus (AAV)-based vectors expressing therapeutic genes continue to demonstrate great promise for the treatment of a wide variety of diseases and together with other gene transfer vectors represent an emerging new therapeutic paradigm comparable in potential impact on human health to that achieved by recombinant proteins and vaccines. A challenge for the current pipeline of AAV-based investigational products as they advance through clinical development is the identification, characterization and lot-to-lot control of the process- and product-related impurities present in even highly purified preparations. Especially challenging are AAV vector product-related impurities that closely resemble the vector itself and are, in some cases, without clear precedent in established biotherapeutic products. The determination of acceptable levels of these impurities in vectors prepared for human clinical product development, with the goal of new product licensure, requires careful risk and feasibility assessment. This review focuses primarily on the AAV product-related impurities that have been described in vectors prepared for clinical development.
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spelling doaj.art-425978c9b3034b51bae053c053ff48f92022-12-21T20:07:09ZengMDPI AGBiomedicines2227-90592014-03-0121809710.3390/biomedicines2010080biomedicines2010080Product-Related Impurities in Clinical-Grade Recombinant AAV Vectors: Characterization and Risk AssessmentJ. Fraser Wright0Center for Cellular and Molecular Therapeutics, the Children's Hospital of Philadelphia, ARC1216C, 3615 Civic Center Boulevard, Philadelphia, PA 19104, USAAdeno-associated virus (AAV)-based vectors expressing therapeutic genes continue to demonstrate great promise for the treatment of a wide variety of diseases and together with other gene transfer vectors represent an emerging new therapeutic paradigm comparable in potential impact on human health to that achieved by recombinant proteins and vaccines. A challenge for the current pipeline of AAV-based investigational products as they advance through clinical development is the identification, characterization and lot-to-lot control of the process- and product-related impurities present in even highly purified preparations. Especially challenging are AAV vector product-related impurities that closely resemble the vector itself and are, in some cases, without clear precedent in established biotherapeutic products. The determination of acceptable levels of these impurities in vectors prepared for human clinical product development, with the goal of new product licensure, requires careful risk and feasibility assessment. This review focuses primarily on the AAV product-related impurities that have been described in vectors prepared for clinical development.http://www.mdpi.com/2227-9059/2/1/80AAV vectorsimpuritiesclinical trials
spellingShingle J. Fraser Wright
Product-Related Impurities in Clinical-Grade Recombinant AAV Vectors: Characterization and Risk Assessment
Biomedicines
AAV vectors
impurities
clinical trials
title Product-Related Impurities in Clinical-Grade Recombinant AAV Vectors: Characterization and Risk Assessment
title_full Product-Related Impurities in Clinical-Grade Recombinant AAV Vectors: Characterization and Risk Assessment
title_fullStr Product-Related Impurities in Clinical-Grade Recombinant AAV Vectors: Characterization and Risk Assessment
title_full_unstemmed Product-Related Impurities in Clinical-Grade Recombinant AAV Vectors: Characterization and Risk Assessment
title_short Product-Related Impurities in Clinical-Grade Recombinant AAV Vectors: Characterization and Risk Assessment
title_sort product related impurities in clinical grade recombinant aav vectors characterization and risk assessment
topic AAV vectors
impurities
clinical trials
url http://www.mdpi.com/2227-9059/2/1/80
work_keys_str_mv AT jfraserwright productrelatedimpuritiesinclinicalgraderecombinantaavvectorscharacterizationandriskassessment