IVT RNA and LNP Manufacturing

VectorBuilder offers a full-service platform for in vitro transcription (IVT) RNA synthesis and lipid nanoparticle (LNP) encapsulation, streamlining the development of your RNA therapeutics every step of the way. Drawing on our expertise in RNA therapeutics development, our CDMO team of RNA experts excels in providing optimal personalized IVT vector design (e.g. sequence optimization) and LNP encapsulation solutions (e.g. customizable formulation, antibody conjugation) that enhance efficacy, safety, and manufacturability of RNA therapeutics.
Highlights
Comprehensive Platform Expertise encompassing RNA therapeutic preclinical development, process development, and GMP manufacturing.
Highest Quality and Consistency State-of-the-art GMP facilities and equipment providing the highest purity and consistency.Grades of IVT RNA Offered
We produce IVT RNA in several grades to cover a full range of downstream applications including drug discovery research, preclinical studies, clinical trials, and commercialization.

- Suitable for basic research and drug discovery studies
- Produced under standard laboratory conditions with stringent QC

- Suitable for preclinical studies (e.g. animal testing of drug safety and metabolism)
- Produced in PAS or GMP facilities in a manner that adopts key features of GMP guidelines
- Can be produced under RNase-free fermentation and purification conditions

- Suitable for preclinical studies, clinical studies, and commercialization
- Produced in our certified GMP suite with strict adherence to GMP guidelines
- Includes comprehensive QC assays and batch release report
Comparison of different grades of IVT mRNA
| Research-grade | GMP-like | GMP-grade | |
|---|---|---|---|
| Applications | Basic research, drug discovery, preclinical studies | Preclinical studies such as animal testing of drug safety and metabolism | Preclinical studies, clinical studies, and commercialization |
| Production scales | mRNA: 0.1-10 mg LNP: 0.1-3 mg |
mRNA: 0.01-20 mg LNP: 3-20 mg |
mRNA: 50 mg - 2 g LNP: 50 mg - 2 g |
| Quality system | ISO9001 | ISO9001 while adopting key features of GMP system | ICH quality guidelines for GMP manufacturing |
| Production facility | In parallel production in shared laboratory space | Production in segregated suites | Production in certified GMP suites |
| Document control and traceability | No | Yes | Full traceability |
| QC and release | Standard QC | Performed on a case-by-case basis depending on individual project needs (see below) | Full panel QC assays and analytical development based on individual project needs |
| Aseptic fill/finish | N/A | Available upon request | Yes |
| Storage of retention sample | Available upon request | Available upon request | Yes |
| Other deliverables | COA | 1. COA 2. Manufacturing summary 3. TSE/BSE certificate upon request |
1. COA 2. TSE/BSE certificate 3. CTD documents 4. Others (BMR, etc.) upon request |
Workflow for Production of GMP IVT mRNA
VectorBuilder strives to deliver high quality RNA products in a time-effective manner. Here is a typical GMP production workflow of IVT mRNA:
Characterization
Development
Banking
Production
Production
- IVT vector design
and cloning
- USP/DSP
development
for plasmid,
mRNA, and LNP - Analytical
development
- RCB
- MCB
- WCB
- Segregated
suite
(GMP-like) - GMP suite
(GMP-grade)
- Closed system
- General/physical
properties - Identity
- Purity
- Safety
Platform Technologies
Our manufacturing process offers cell-free production of IVT vector DNA that greatly shortens production time and innovative purification processes for efficient removal of impurities. With our commitment to innovation, we continuously refine our processes to stay at the forefront of RNA technology.
linearization
transcription
(IVT RNA production, co-
or post-transcriptional
modifications)
(Chromatography)
(Rapid phase mixing)
(TFF, sterile
filtration, fill/finish)
and release
For more information on our manufacturing platform and/or GMP capabilities, contact the VectorBuilder service team.
Analytical Methods
Quality control assays
The list below summarizes our range of available QC assays for the release of GMP-like and GMP-grade IVT RNA products. Additional QC services not listed below may be provided upon request. Please contact our service team to determine the best QC package for your needs.
| Attribute | QC Assay | ||
|---|---|---|---|
| IVT Template Vector | General/physical properties | Plasmid concentration | Nanodrop |
| Identity | Plasmid size | Restriction digestion | |
| Full-length plasmid sequence | Sanger sequencing | ||
| NGS | |||
| Third-generation sequencing | |||
| IVT RNA | General/physical properties | Appearance | Visual inspection |
| pH | pH meter | ||
| mRNA concentration | Nanodrop | ||
| RiboGreen assay | |||
| Potency | Protein translation | In vitro translation followed by Western blot | |
| Transgene expression | Cell transfection | ||
| Identity | mRNA sequence | Reverse transcription followed by Sanger sequencing | |
| mRNA length | Denaturing agarose gel electrophoresis | ||
| Capillary gel electrophoresis | |||
| Purity | OD260/280 | Nanodrop | |
| mRNA integrity | Denaturing agarose gel electrophoresis | ||
| Capillary gel electrophoresis | |||
| Capping efficiency | LC-MS | ||
| PolyA analysis | LC-MS | ||
| Residual dsRNA | Dot blot assay | ||
| Residual plasmid DNA | qPCR | ||
| Residual protein | NanoOrange assay | ||
| Residual solvents | Gas chromatography | ||
| Safety | Sterility | Bioburden test | |
| Mycoplasma | Culture method | ||
| qPCR | |||
| Endotoxin | Kinetic chromogenic assay (KCA) | ||
| LNP-encapsulated RNA and Plasmids | General/physical properties | Appearance | Visual inspection |
| Concentration | RiboGreen assay | ||
| pH | pH meter | ||
| Identity and purity | Encapsulation efficiency | RiboGreen assay | |
| Particle size | Dynamic light scattering (Zetasizer) | ||
| Polydispersity index (PDI) | Dynamic light scattering (Zetasizer) | ||
| Surface charge (Zeta potential) | Dynamic light scattering (Zetasizer) | ||
| Encapsulated RNA integrity | Capillary gel electrophoresis | ||
| Safety | Sterility | Bioburden test | |
| Endotoxin | Kinetic chromogenic assay (KCA) | ||
Stability studies
Drug stability studies are performed following ICH guidelines. Forced degradation studies are performed to evaluate the influence of light, temperature, pH, etc., on the quality attributes of IVT RNA.
Our Facilities
VectorBuilder currently has about 100,000 ft2 of modern GMP-compliant facilities with advanced designs and state-of-the-art equipment meeting GMP regulations of US, EU, Japan, China, and PIC/S. Our facilities comply with ICH guidelines and are suitable for GMP production for Phase I/II/III clinical trials.
- GMP Manufacturing
Suites - Fill/finish Suites
- QC Laboratories
- GMP Warehouse

Our new RNA-focused GMP facility is equipped with state-of-the art equipment and has been meticulously designed to prioritize flexibility and adaptability to cater to custom project requirements.

Our automated filling system is installed within a Grade A isolator in a Grade C environment.

Our independent QC laboratories consist of multiple lab suites totaling 9,500 ft2 for a wide range of QC assays.

We have 6,500 ft2 of ICH-compliant warehouse space for product storage and monitoring.