Avirmax Biopharma

Oct 31,2022

Avirmax CMC Inc. Received License for cGMP Gene Therapy Vector Production by the California Department of Public Health

HAYWARD, Calif.Oct. 31, 2022  — Avirmax CMC Inc., a global leader in recombinant adeno associate virus vector (rAAV) innovation and manufacturing process development, using a recombinant baculovirus Sf9 (rBV-Sf9-AAV) system, has completed its brand-new facility in Hayward, CA (San Francisco Bay Area). The facility has received cGMP license approval by the California Department of Public Health (CDPH)-Food & Drug Branch, for the production of rAAV drug products for use in clinical investigations.

The new 20,000 sq.ft. state-of-the-art manufacturing facility is composed of three functional areas – developmental laboratories, testing laboratories and cGMP production suites consisting of B, C, and D clean room classifications, which are prepared for rAAV Contract Research, Development, Manufacturing Organization (CDMO) service.

This facility will produce rAAV using single use bioreactors (SUB) in an animal free, serum free suspension culture system with yields of 1016-17 vector genome (vg) per batch with a production window of about two months. Production scales at 50L, 200L and 1000L, are available to customers depending on their clinical trial size and dose requirements.


The company has a worldwide exclusive license from ViroVek Inc. enabling cGMP production of AAV gene therapeutics using the Bac-to-AAV technology, which utilizes an engineered artificial intron consisting of an insect promoter in both the AAV rep and cap sequences, coupled with a versatile baculovirus expression system. The suspension insect culture system dramatically enhances the stability of recombinant baculoviruses, the infectivity of the AAV vectors, and AAV production yield, capable of reaching as high as 1e+15 vg/L.  The Sf9 cell culture provides higher pathogen safety assurance for gene therapy products than those manufactured using human or other mammalian cell culture systems (i.e., HEK293 or HeLa-3 cells) since the Sf9 cell culture hardly supports mammalian virus propagation. The Sf9 manufacturing platform can be operated under a BSL-1 biological safety environment, as used in the production of the recombinant proteins (i.e., monoclonal antibodies) by Chinese hamster ovarian (CHO), baby hamster kidney (BHK) cells.

“Our team has extensive experience and knowledge in recombinant AAV technology development and in rAAV manufacturing. With our new facility, Avirmax CMC Inc. is able to deliver high yield and quality vectors efficiently, timely and cost effectively. Avirmax CMC Inc. is committed to continuously innovate and develop technologies in collaborative relationships with our customers and to solve challenges in rAAV vector process development and manufacturing,” commented Shengjiang (Shawn) Liu, Ph.D., DVM, President & CEO of the company. With the recent CDPH approval of the cGMP facility, and by applying their expertise and manufacturing experience accumulated in the past years, the company is capable of supporting clients with integrated solutions, from DNA to rAAV drug product (DP), including rAAV vector design, molecular cloning, expression cassette optimization, process development, manufacturing, comprehensive vector analysis and characterization, as well as with the regulatory strategy for gene therapy products.

About Avirmax CMC, Inc.

Avirmax CMC, Inc., a spin-off of Avirmax Inc., based in the San Francisco Bay Area, is dedicated to the development and manufacture of rAAV vector mediated biotherapeutics using its proprietary protein therapeutics and Bac-to-AAV technologies.

The company was founded by seasoned entrepreneur Shengjiang (Shawn) Liu, Ph.D., DVM, who is a veteran in biologics including rAAV based drug development.  Dr. Liu was the group leader of Genentech’s Research Virology Lab, co-founder and president of Abmaxis Inc. and Chief Scientist at Bayer Pharmaceuticals. The company’s co-founder, Haifeng Chen, PhD., was founder & CEO of ViroVek Inc. Dr. Chen is a pioneer in the Bac-to-AAV system that was developed for the large-scale production of rAAV vectors.

Avirmax CMC Inc. is dedicated to offer its clients with great transparency, flexibility and process expertise, superior high quality and titer AAV vectors, manufacturing capacity and regulatory strategy know-how.  For more information, please visit at www.avirmax.com.

Please contact
June Song, Manager for Executive Administration
Email: [email protected]
Tel: +1-510-641-0201

25503 Whitesell Street
Hayward 94545 CA

SOURCE Avirmax