Exhibit 99.1

LogicBio Therapeutics Reports First Quarter Year 2021 Financial Results and Provides Business Update
- First patient for Phase 1/2 SUNRISE trial expected to be enrolled by mid-year 2021
- Business Development Deals signed with Daichi-Sankyo and CANbridge Pharmaceuticals
-New members recently added to Leadership Team
LEXINGTON, Mass., May 10, 2021 — LogicBio Therapeutics, Inc. (Nasdaq:LOGC) (LogicBio or the Company), a clinical-stage genetic medicine company pioneering gene delivery and gene editing platforms to address rare and serious diseases from infancy through adulthood, today reported financial results for the quarter ended March 31, 2021 and provided a business update.
“Over the past few months, LogicBio has continued to make great progress in all aspects of our business,” said Frederic Chereau, President and CEO. “As we recently announced, we are well on our way towards the enrollment of the first patient into the SUNRISE trial of LB-001 for the treatment of MMA. We expect enrollment to commence by mid-year and to continue to be on track to present interim data by year end. We have also recently signed two business development agreements, which included partnerships for LB-001 and our sAAVyTM capsid technology, and we believe these deals offer additional external validation of the value creation possibilities of our entire portfolio.” Mr. Chereau concluded by saying, “I am also very excited by the new members we have added to our team, and I am delighted they have chosen to join LogicBio as we move into this exciting next phase of progress.”
Anticipated LogicBio Milestones for 2021:
LB-001 for MMA
| • | | Mid-year 2021: Enrollment of first patient in Phase 1/2 SUNRISE trial |
| • | | Late 2021: Operational update from enrollment of additional patients, including dose escalation and age de-escalation |
| • | | Year End 2021: SUNRISE trial interim data |
Pipeline
| • | | 2021: Nomination of next development candidate |