Replication-incompetent vector particles derived from AAV (adeno-associated virus) have been shown...
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Replication-incompetent vector particles derived from AAV (adeno-associated virus) have been shown to mediate transfer and expression of heterologous genes (transgenes) into a variety of cells in vivo and in vitro. It has tremendous potential in both research and therapeutic applications.
While AAV vectors are engineered to be replication defective, generation of replication-competent AAV (rcAAV) can still occur during vector manufacturing by means of recombination events within the producer cells. rcAAV may develop at any step during the manufacturing process of gene therapy products. Even though vector production systems have been specifically developed to reduce the risk of rcAAV generation, there is still a significant safety concern driving the recommendations for testing for rcAAV in cell banks, vector and final product release for AAV-based gene therapy products.
The presence of rcAAV in clinical lots of AAV vectors raises a variety of safety concerns:
Creative Biogene offers testing services for detection of rcAAV in compliance with FDA, ICH, and CPMP guidelines. We have established a method to detect rcAAV more sensitively and rapidly. With years of experience in biosafety assessment, we can design a customized testing program to assess the potency, purity, and safety of your viral vaccine or gene therapy product at phase-appropriate levels (R&D, GLP, and GMP) to support your regulatory filing.