
Regenxbio opens gene therapy manufacturing facility at its Maryland HQ
Regenxbio is pushing deeper into the gene therapy space with the opening of a new facility at its campus in the Washington D.C., suburb of Rockville, MD.
Built in a year, the $65 million, 132,000-square-foot GMP facility will enable the company to boost its manufacturing of NAV Technology-based adeno-associated virus, or AAV, vectors at scales up to 2,000 liters. The facility will also implement Regenxbio’s platform suspension cell culture process.

“We believe our in-house manufacturing capabilities will enable us to rapidly transition production processes across the product lifecycle, and efficiently advance new AAV Therapeutics from research and early development to clinical programs to commercial readiness, and into the hands of patients who may benefit from these potential one-time administration therapies,” said Regenxbio’s CEO Ken Mills in a statement.
The site now includes two independent bulk drug substance production suites, a final drug product suite and integrated quality control labs, and production at the site began in May.
Mills said in an email to Endpoints News, that the company received $800,000 in financing incentives from the government of Montgomery County and the state of Maryland for the buildout of their headquarters, which includes the new manufacturing center. Aside from another estimated $19.5 million in tenant improvement allowances, the rest of the project was funded directly by Regenxbio. No debt was incurred related to the build-out.
Last year, the company invested more than $100 million into the buildout of its headquarters in Rockville and the company has made over 200 hires in the past two years bringing its total to over 400 people, with more than 100 dedicated to manufacturing.
However, the news of the build-out has done little to soothe investors, especially amidst the current bear market woes for biotechs. The company finds its stock price $RGNX down 44% from the beginning of the year.
The company also suffered a setback when Novartis told the FDA in August that Regenxbio shouldn’t have filed for a PTE for its AAV9 vector because that application should have come from Novartis.