REGENXBIO Inc.

We are a leading clinical-stage biotechnology company seeking to improve lives through the curative potential of gene therapy. Our investigational gene therapies are designed to deliver functional genes to address genetic defects in cells, enabling the production of therapeutic proteins or antibodies that are intended to impact disease. Through a single administration, gene therapy could potentially alter the course of disease significantly and deliver improved patient outcomes with long-lasting effects.

Our investigational gene therapies use adeno-associated virus (AAV) vectors from our proprietary gene delivery platform, which we call our NAV® Technology Platform. AAV vectors are non-replicating viral delivery vehicles that are not known to cause disease. Our NAV Technology Platform has consisted of exclusive rights to a large portfolio of AAV vectors (NAV Vectors), including commonly used AAV8 and AAV9. We believe this platform forms a strong foundation for our current clinical-stage programs and, with our ongoing research and development, we expect to continue to expand our platform and pipeline of potential AAV vector-based gene therapies. Our NAV Technology Platform is the foundation for commercial and investigational AAV therapeutics that have treated thousands of patients through our clinical pipeline and NAV licensees.

We have developed a broad pipeline of investigational AAV therapeutics using our NAV Technology Platform as one-time treatments to address an array of diseases. We are currently focusing our internal development pipeline in three areas: retinal, neuromuscular and neurodegenerative diseases. We believe these product candidates are differentiated, can be expedited, and support meaningful near-term and long-term value generation. Our investigational gene therapies include:

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Surabgene lomparvovec (sura-vec, ABBV-RGX-314), which we are developing in collaboration with AbbVie to treat large patient populations impacted by wet age-related macular degeneration (wet AMD) and diabetic retinopathy (DR).

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RGX-202, which we are developing to treat Duchenne muscular dystrophy (Duchenne), one of the most common fatal genetic disorders affecting children.

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RGX-121 (clemidsogene lanparvovec) and RGX-111, which we are developing and plan to commercialize with Nippon Shinyaku to treat Mucopolysaccharidosis type II (MPS II) and Mucopolysaccharidosis type I (MPS I), both of which are progressive, neurodegenerative lysosomal storage disorders.

Our internal pipeline is shown below.

Since our founding, we have built a team of experts in research and development, preclinical and clinical development, scalable manufacturing and commercialization, enabling us to have integrated, end-to-end capabilities. We believe AAV therapeutics represent a simplified and efficient potential new class of innovative medicines. Our experience and expertise distinguish us from other gene therapy companies and will help ensure value generation and our continued growth.