Melissa Calton
Vice President - Early, Stage Product Development 4D Molecular Therapeutics
Melissa Calton is Vice President of Early-Stage Product Development at 4D Molecular Therapeutics, where she oversees toxicology, pharmacology, and preclinical strategy across a diverse pipeline. With deep expertise spanning preclinical development to clinical proof-of-concept, she leads cross-functional teams to deliver under tight timelines in dynamic, fast-paced environments. Melissa brings a strategic, results-driven approach to advancing gene therapy programs, serving as the nonclinical lead in key regulatory interactions. Known for fostering collaboration and driving operational excellence, she is passionate about innovation, strategic execution, and developing high-impact teams that accelerate the delivery of transformative therapies to patients.
Seminars
Gene therapy is no longer just a treatment; it’s a delivery system. By delivering a gene instead of a protein, developers can enable continuous in-eye production of therapeutic proteins, potentially reducing injection burden for years. But this approach hinges on getting the right vector to the right cells, through the right route, with minimal immune response. This workshop will explore gene therapy as a delivery modality, comparing subretinal, intravitreal, and suprachoroidal approaches through the lens of real-world feasibility, safety, and vector precision.
Key Topics to be Explored:
- How does gene therapy function as sustained drug delivery, and what conditions require protein production inside specific retinal cells like rods and cones?
- Why does subretinal delivery remain the method of choice for precision targeting and what are the surgical trade-offs, including risk of retinal detachment?
- What’s the role of AAV serotype selection (e.g., AAV2 vs. AAV8) in targeting the correct retinal layers, and how does that impact safety and efficacy?
- How do intravitreal and suprachoroidal injections compare in terms of anatomical access, procedural simplicity, and delivery to deep retinal tissues?
- What strategies are being developed to mitigate immunogenicity, and how are vector surfaces being modified to reduce inflammation?
- Why is systematic vector testing still lacking, and how do current manufacturing challenges limit the scalability of gene therapy delivery systems in ophthalmology?
