CARR Biosystems Talk to Our PD Team

Process Development to Commercial

Same technology, same recipes — from UFMini to U2K

Eliminate tech transfer risk. Scale your iPSC or viral vector process with a single centrifuge platform that maintains consistent performance from 500 mL to 2,000 L.

Gene therapy bioprocessing

The challenge

Scaling bioprocesses without changing the underlying technology

Tech transfer friction

Moving from discovery to GMP often means changing centrifuge technology entirely — triggering months of revalidation.

Shear sensitivity at scale

Larger centrifuges often increase shear forces, damaging sensitive iPSC aggregates and reducing viral vector titers.

Inconsistent performance

Different separation principles at different scales produce variable concentration factors, making process control unpredictable.

Media exchange efficiency

Variable washing and buffer exchange efficiency across scales makes it hard to lock in formulation parameters during PD.

Linear scalability

One separation principle across four scales

Parameter UFMicro UFMini UniFuge Pilot U2K
Scale Research PD Pilot / Phase I Commercial
Volume range <500 mL 0.5–50 L 50–200 L 200–2,000 L
Separation principle Tubular bowl — identical across all scales
Single-use modules
Recipe transfer Direct recipe transfer — no reoptimization required
21 CFR Part 11

Consistent concentration factors

The tubular bowl design delivers the same g-force profile and separation efficiency at every scale — what works at 500 mL works at 2,000 L.

Programmable recipe transfer

Lock in your g-force, flow rate, and wash parameters during PD. Transfer them directly to the next scale with no reoptimization.

PD support & scale-up calculators

CARR's application scientists provide hands-on support during PD, plus predictive calculators to model performance at target scale.

Performance data

Proven results across iPSC and gene therapy workflows

iPSC media exchange

UniFuge maintains iPSC pluripotency while performing high-efficiency media exchange — critical for feeder-free, xeno-free manufacturing processes.

>95%

Cell viability

15

Days pluripotency maintained

>90%

Media exchange efficiency

Gene therapy vector production

UniFuge optimizes lentiviral and AAV vector concentration, improving titer yields while reducing the need for downstream filtration steps.

46%

Titer yield improvement

28%

Less filter area required

>95%

Product recovery

Cell viability across cell types

Cell viability and recovery data

Over 98% recovery and 99% viability across iPSC, TIL, stem, and NK cells using the UniFuge platform.

Gene therapy titer improvement

Gene therapy titer improvement data

HEK293-produced lentiviral vectors showed 46% titer improvement and 28% reduction in required filter area compared to conventional methods.

Applications

Built for the workflows PD teams work on every day

iPSC

Media exchange & harvest

Gentle separation preserves pluripotency during media exchange. Compatible with PBS Biotech vertical-wheel bioreactors for end-to-end workflows.

Lentiviral

Vector concentration

Low-shear concentration increases titer yield by up to 46% while reducing filtration load — a direct impact on COGS.

AAV

Harvest clarification

Efficient clarification of HEK293 lysate with high product recovery. Reduces turbidity and protects downstream chromatography steps.

CAR-T

Cell washing & formulation

Automated washing strategies remove process impurities while maintaining viability above 95% for patient-specific batches.

Biologics

Harvest & clarification

High-density CHO and HEK293 harvest with over 99% turbidity reduction. Sterile closed system maintains product integrity.

Exosomes

Concentration & isolation

Gentle, scalable concentration of extracellular vesicles with preservation of size distribution and surface markers.

Case study

46% titer improvement in lentiviral vector production

Gene therapy research laboratory

! The challenge

A gene therapy company needed to improve lentiviral vector yields during upstream concentration without damaging the fragile enveloped virus. Their existing TFF approach was causing significant titer loss and creating a bottleneck at scale.

The solution

CARR's PD team worked with the customer to optimize UniFuge parameters for their HEK293 suspension-based lentiviral production process. The low-shear tubular bowl design concentrated vectors without the membrane fouling issues seen with TFF.

The outcome

  • 46% improvement in functional titer yield
  • 28% reduction in downstream filter area required
  • >95% product recovery with single-use, closed processing
Read the whitepaper

"The UniFuge line is simpler and required less calibration than other solutions we have tried. The scale-up from UFMini to UniFuge Pilot was seamless."

Process Development Scientist — Gene Therapy

Centrifuges for PD teams

Start at any scale — grow without limits

Let's talk scale-up

Talk to our PD team about your scale-up plan

Whether you're optimizing at bench scale or planning commercial manufacturing, our application scientists can help you map out a centrifugation strategy that grows with your program.

Process development consultation — no obligation
Scale-up modeling for your specific cell type and volume
Demo units available for proof-of-concept

Connect with our PD team

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