March 2023 Arianna living with Gaucher disease type 3 1 Disclaimer This presentation has been prepared by AVROBIO, Inc. (“AVROBIO”) clinical trial results, and product approvals; the timing and results of results, such as signals of safety, activity, or durability of effect, for informational purposes only and not for any other purpose. Certain our ongoing preclinical studies; the anticipated benefits of our gene observed from preclinical or clinical trials, will not be replicated or information contained i ...