GMP-engineered T cells

Clinical-grade CAR T cell manufacturing

  • Automated CAR T cell manufacturing process
  • Isolation, activation, transduction, expansion, and harvest of final cell product in a single-used, functionally-closed system
  • Robust and scalable production platform

The CliniMACS Prodigy® T Cell Transduction Process

With the CliniMACS Prodigy® T Cell Transduction (TCT) Process you can now generate CAR T cells in a simple and automated fashion. This easy to use and unique process will surely change the way you work.

Simplify CAR T cell manufacturing with the CliniMACS Prodigy

Chimeric antigen receptor (CAR) T cell therapy is undoubtedly leading a revolution in cancer therapy1,2. The recent successes of CAR T cell therapy in fighting hematologic malignancies have led to a tremendous increase of interest in the immunotherapeutic field³. The great potential of genetically modified T cells now even expands into the area of solid tumors and infectious diseases⁴. Currently, the manufacturing process of CAR T cells consists of various complex procedures, is labor intensive, and represents one of the biggest challenges in this area. The CliniMACS Prodigy TCT process provides a unique all-in-one solution to these challenges. With the CliniMACS Prodigy Platform, it is possible to generate gene-modified T cells in a standardized and automated process5. It is a breakthrough in cell manufacturing, and a leap to the next generation.

The four easy steps to your final CAR T cell product

The CliniMACS Prodigy Platform enables the entire workflow for the manufacture of CAR T cells, from T cell selection and activation, to viral transduction, and cell expansion. All cell processing steps are automated, ensuring a highly reproducible and standardized manufacturing process.

During the T cell transduction process, T cells are first enriched by specific selection and then activated overnight. In the next step T cells are transduced with a lentiviral or gamma-retroviral vector. Subsequently, transduced T cells are expanded to the desired cell number for final cell harvest.

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1. Separation of T cells

Cell separation on the CliniMACS Prodigy is a simple and easy method to magnetically isolate T cells with a high purity. Advantages of this completely automated method include:

• Efficient separation of CD4+ and CD8+ cells without inducing activation

• Removal of contaminating immune cells to enhance T cell transduction efficiency

• No magnetic bead removal necessary

2. T cell activation

MACS® GMP T Cell TransAct™ is a colloidal polymeric nanomatrix conjugated to humanized, recombinant CD3 and CD28 agonists. It is a ready-to-use reagent that has been designed to activate and expand enriched T cell populations or resting human T cells from peripheral blood mononuclear cells (PBMCs). Thanks to its nanoscale structure the reagent can be sterile filtered, and excess reagent can conveniently be removed by washing the TransAct activated cells.

MACS GMP T Cell TransAct is directly applicable for the use in automated culture systems, such as the CliniMACS Prodigy Instrument.

3. Lentiviral transduction

To achieve long-term gene expression through stable genomic insertion, two types of gene transduction tools are commonly used: gamma-retroviral vectors (RV) or lentiviral vectors (LV). The CliniMACS Prodigy TCT Process supports the use of both vectors.

For easy integration of a transduction enhancer for RV-based transduction, Vectofusin-1® can enhance your RV transduction efficiency. Vectofusin-1 is compatible with both static and spinoculation protocols. LV can easily be integrated into the automated CliniMACS Prodigy TCT Process. We also deliver tailored LV solutions from a strong expertise in advancing LV design and technologies that meets global GMP requirements.

4. CAR T cell expansion

Cell expansion takes place in the cell cultivation chamber, which is part of the CliniMACS Prodigy Tubing Set in order to maintain a functionally closed system. As part of the TCT Process activity matrix, the culture duration as well as the medium supply and exchange are flexibly programmable.

Ideal cultivation and expansion of transduced T cells rely on the strong synergy of MACS GMP T Cell TransAct™, TexMACS™ GMP Medium, and MACS GMP Cytokines.

TexMACS GMP Medium

• Specifically developed for T cell cultivation

• Serum- and xeno-component free

• Pharmaceutical-grade human serum albumin

• QC functionality test on every batch

MACS GMP Cytokines

• Lot-to-lot consistency and lot-specific certificates of analysis

• Designed according to the recommendations

of <USP 1043> on ancillary materials

• Manufactured and tested under a certified ISO 13485

quality system

At the end of the CliniMACS Prodigy TCT Process, the final product is harvested in 100 mL buffer of your choice. CAR T cells are then ready for cryopreservation or direct infusion.

Express Modes of the MACSQuant® Instruments allow for fully automated and standardized flow cytometry processes.

In-process and quality control and clinical flow cytometry

In-process control and quality control (IPC/QC) are required for consistent cell manufacturing. Integrated sampling pouches on the CliniMACS Tubing Sets allow for controls to be collected at any time during, and at the end of the cell manufacturing process. Miltenyi Biotec provides complete solutions with its MACS Flow Cytometers, a wide portfolio of MACS IVD Antibodies, and automated flow cytometry analysis with the CAR T Cell Express Mode Package for clinical flow cytometry. MACS IVD Antibodies are produced according to the quality management system ISO 13485.

When using a MACSQuant® Instrument, Express Modes allow you to fully automate and standardize your flow cytometry process. The MACSQuant Instrument and the MACS Flow Cytometry portfolio are for research use only.


For the manufacture and use of gene-engineered T cells, national and international legislation and regulations must be followed. The manufacturer has to validate the QC method. Miltenyi Biotec as the provider of products for the T Cell Transduction Process does not give any recommendation regarding the use of the manufactured cells for therapeutic purposes and does not make any claim regarding a clinical benefit.


  1. Anurathapan, U. et al. (2014) Cytotherapy 16: 713–733.
  2. Maus, M.V. et al. (2014) Blood 123: 2625–2635.
  3. Barrett, D.M. et al. (2015) J. Immunol. 195: 755–761. 
  4. Whilding, L.M. and Maher, J. (2015) Mol. Oncol. 9: 1994–2018.
  5. Lock, D. & Mockel-Tenbrinck, N. et al. (2017) Hum Gene Ther 10. 914–925 

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