Quality Grades
Comparison of our production processes and quality grades
PlasmidFactory offers clearly defined quality grades to support research, preclinical development, and clinical manufacturing. Our Scientific Quality Grade enables advanced research applications, High Quality Grade provides EMA-guidelines-based material for preclinical and early clinical programs, and GMP Grade supports late-stage clinical trials and commercial supply.

| Characteristics | Scientific Quality (SQ) Grade
|
High Quality (HQ) Grade*†
Plasmid | Minicircle |
GMP Grade
Plasmid | Minicircle |
|
|---|---|---|---|---|
| Research Grade Plasmid | CCC Grade Plasmid | Minicircle | |||
| Produced by fermentation | ||||
| Guaranteed amount of DNA | ||||
| Adjustment of DNA concentration incl. | ||||
| Customized filling included | ||||
| Certificate of analysis (CoA) | ||||
| Storage of glycerol stocks and retain samples for repeat orders | ||||
| Antibiotic-free fermentation | ||||
| Verified removal of bacterial endotoxins (LPS assay) | ||||
| Removal of RNA and proteins | ||||
| Removal of bacterial chromosomal DNA and oc-forms | ||||
| DNA in ccc-form (≥95% supercoiled) | ||||
| CGE analysis (ccc-supercoiled vs. oc-plasmid topologies) | ||||
| Extended specification | ||||
| Enzyme- and animal-free workflow | ||||
| Characterized and documented cell bank and pilot cultivation | ||||
| Documentation according to GMP/GMP principles | ||||
| Dedicated lab | ||||
| QM system applied | ||||
| Spatially separated upstream and downstream processes | ||||
| Single use equipment for the entire process | ||||
| Compliant with applicable GMP-guidelines | ||||
* HQ: High Quality Grade is produced in accordance with EMA guideline CHMP/BWP/2458/03 as the highest non-GMP quality standard
† Also available as “HQ in GMP“ Grade using an end-to-end single use process in dedicated GMP building
ccc: covalently closed circle
CGE: Capillary Gel Electrophoresis
LPS: Lipopolysaccharide
oc: open circular
Our quality grades
Scalable plasmid and Minicircle DNA — from research to clinical manufacturing.
PlasmidFactory offers clearly defined quality grades to support every stage of your project — ensuring regulatory alignment, performance consistency, and seamless scale-up within one trusted CDMO.
EMA Guidelines

The term “High Quality” is consistent with the meaning embodied in EM(E)A document CHMP/BWP/2458/03 (“Guideline on Development and Manufacturing of Lentiviral Vectors”); EMA document EMA/CAT/80183/2014 (“Guideline on the quality, non-clinical and clinical aspects of gene therapy medicinal products”); and EMA document EMA/246400/2021 (“Questions and answers on the principles of GMP for the manufacturing of starting materials of biological origin used to transfer genetic material for the manufacturing of ATMPs”). PlasmidFactory seeks to ensure maximum safety and the highest quality DNA, although the plasmid production itself is not aligned to GMP standards.
