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A Visual Guide to Genome Editors

Codon

The treatment, now known as Casgevy, became the first CRISPR-based therapy to gain FDA approval, in 2023. If the same virus invades the cell a second time, the gRNA’s spacer sequence will bind to the matching viral DNA sequence, then be cut by the Cas protein.

DNA 83
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Levers for Biological Progress

Codon

They engineered genetically-encoded RNA exporters, based on viruses, that package and secrete RNA molecules in protective nanoparticles, allowing non-destructive monitoring of those RNA molecules in real-time. Today, a single injection of an FDA-approved gene therapy, called Hemgenix , cures this disease.

DNA 133
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New gene delivery vehicle shows promise for human brain gene therapy

Broad Institute

But FDA-approved forms of the most commonly used vehicle for packaging and delivering these therapies to target cells, adeno-associated viruses (AAVs), aren’t able to efficiently cross the blood-brain barrier at high levels and deliver therapeutic cargo.

Therapies 137
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Researchers reprogram gene therapy viral vectors to bind specific protein targets

Broad Institute

By Allessandra DiCorato July 19, 2023 Credit: Kevin Middleton, Broad Communications A three-dimensional model of adeno-associated viruses (AAVs), which scientists have engineered to package and deliver gene therapies to cells in the body.

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What FDA’s Newest Gene Therapy Approval Tells Us About Durability: How Long is Long Enough?

FDA Law Blog: Drug Discovery

Valentine — On November 22, 2022, FDA approved CSL Behring’s BLA for Hemgenix (etranacogene dezaparvovec), an AAV-based gene therapy for the treatment of adults with Hemophilia B who currently use Factor IX prophylaxis therapy, have current or historical life-threatening hemorrhage, or have repeated, serious spontaneous bleeding episodes.

Therapies 119
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Altasciences Chosen by Virpax to Support the Development of a New Drug to Prevent Spread of Flu-like Viruses

Alta Sciences

AnQlar is a nanoparticle intended to help prevent the spread of negatively charged viruses such as COVID-19 and influenza via intranasal spray, and has been shown to inhibit the ability of the virus to replicate at non-toxic concentrations. We look forward to further collaboration with Virpax in the near-future.”

Virus 40
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New insights into the role of viral capsids in gene therapy safety

Drug Target Review

1 In 2017, the US Food and Drug Administration (FDA) approved the first AAV-based gene replacement therapy (Luxturna), for Leber congenital amaurosis type 2. 2 Since then, the FDA has approved four more AAV-based gene therapies—Zolgensma, Hemgenix, Elevidys and Rocktavian—for treating various diseases. Labcompare.