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Three-Year-Old First to Thrive with Hunter Syndrome Gene Therapy

11/27/2025

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Summary

Story summary

Oliver Chu, a three-year-old from California, became the first recipient of a gene therapy for Hunter syndrome.
Nine months after treatment, Oliver shows significant improvements in physical and cognitive development.
The therapy modifies his stem cells to produce the enzyme that breaks down harmful sugars.
His parents hope the success leads to similar treatments for others, including Oliver's older brother Skyler in a separate study.

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Story summary

Oliver Chu, a three-year-old from California, became the first recipient of a gene therapy for Hunter syndrome.
Nine months after treatment, Oliver shows significant improvements in physical and cognitive development.
The therapy modifies his stem cells to produce the enzyme that breaks down harmful sugars.
His parents hope the success leads to similar treatments for others, including Oliver's older brother Skyler in a separate study.