CDMO SERVICES

A dedicated solution provider of cellular therapy products

CAR-T
CDMO Services for Lentiviral Vectors - IIT grade/non-clinical phase

Lentivirus, a subtype of retrovirus, can integrate the target gene into the host cell genome, and is commonly used as a viral vector for ex vivo cell engineering. With the emergence of cellular therapy industry, the market demands for lentiviral vectors are also increasing with each passing year. Hillgene is specialized in provision of integrated CDMO solutions for cellular therapy products, has established an advanced GMP grade platform for serum-free suspension culturing of lentiviral vectors, and therefore, can provide high-quality CDMO services for lentiviral vectors to clients with various demands.

Services 

CDMO Services for Lentiviral Vectors (HiLenti® Platform)
TypesServices


IIT grade

1Independently developed four-plasmid system

●  Third generation four-plasmid system

●  Kanamycin-resistance gene

●  No patent license required

●  Seamless connection to IND submission

2Manufacturing and Testing of Lentiviral Vectors (GMP-like)

●  Tailorable production output and specification

●  GMP-like workshop

●  Authentic and traceable documentation

●  GMP-like quality management system

*Note: We offer relatively flexible and customized changes to above services, including but not limited to above services.



Advantages

Advantages of using our platform for serum-free suspension culturing of lentiviral vectors:

• Free of animal-derived components throughout the process 

• Linearly scaled up production of lentiviral vectors 

• Using a single container of a 50 L disposable bioreactor 

• Cell bank creation in separate workshops 

• Dispensing final products using a sterile isolator 

• Dedicated lentivirus system for TCR-T cells, with high infection efficiency

• Low production costs and testing costs (no requirements of testing for BSA and residual pancreatic enzymes) 

• Several successful IND submissions to NMPA of lentiviral vectors for TCR-T cells



Manufacturing process

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Quality control

ProductTest ItemTest Method
Harvest FluidAdventitious virus contaminationMethod 3302 of ChP 2020
Replication-competent lentivirusesIndicator cell culture method
Drug substance/finished productAppearanceVisual inspection
SterilityMethod 1101 of ChP 2020
Mycoplasma

Method 3301 of ChP 2020

pHMethod 0631 of ChP 2020
  OsmolalityMethod 0632 of ChP 2020
TCR identificationSequencing
Residual host cell proteinELISA
Physical titer (p24)ELISA
Functional titerFlow cytometry
EndotoxinMethod 1143 of ChP 2020
Residual BenzonaseELISA
Residual host cell DNAq-PCR
Residual E1A gene transferCo-culture method
Residual SV40 gene transferCo-culture method

*Note: Hillgene established QC methods corresponding to different technology platforms, with QC methods including but not limited to above items. 



Project Timeline

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Project Management Plan

Hillgene Project Management Team, consisting of chief scientists, project managers, Project QA and GMP experts, will make efforts to ensure the smooth and sound operation of each and every GMP project.

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