Modalities

Solutions Overview

Every modality brings its own process demands. Repligen supports antibodies and recombinant proteins, viral vectors, mRNA, plasmid DNA, ADCs, and emerging platforms with connected solutions across mixing, single-use fluid management, chromatography, filtration, and real-time analytics — from development through GMP.

Bioprocessing scientist in a cleanroom environment illustrating gene therapy and molecular analytics workflows.

What are biologic modalities?

Biologic modalities are the different classes of therapeutics manufactured in bioprocessing — from established monoclonal antibodies and recombinant proteins to viral vectors, mRNA, plasmid DNA, antibody-drug conjugates, and cell-based platforms.

Each modality places different demands on the process. Viral vectors need gentle handling to protect particle integrity. mRNA depends on efficient purification and formulation. ADCs introduce conjugation and solvent compatibility considerations. Recognizing those differences early makes processes easier to scale and transfer.

Repligen helps bioprocess, MSAT, and manufacturing teams work across all of them — with mixing, fluid management, purification, filtration, and process analytics selected for the specific requirements of each modality, and scalable from benchtop process development through commercial GMP manufacturing.

Expertise Behind Every Modality

From established biologics to emerging platforms, Repligen helps teams solve real process challenges — with hands-on support from early development through commercial GMP manufacturing.

Global field application support

Development to commercial GMP

Recognized expertise in gene therapy, oncolytics, and vaccines

Quality documentation available

Global field application

Development to commercial GMP

Recognized expertise in gene therapy, oncolytics, and vaccines

Quality documentation available

Explore Modailities

3D molecular visualization of a monoclonal antibody (mAb) structure used in biologics development and therapeutic manufacturing.

Antibodies & Recombinant Proteins

Upstream intensification, clarification, chromatography, and UF/DF for mAbs, fragments, Fc and albumin fusions, and protein vaccines.

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Visualization of messenger RNA (mRNA) molecular structure used in mRNA therapeutics and vaccine manufacturing workflows, including purification, LNP formulation, and scalable bioprocess development.

mRNA

With the proven success of mRNA-based vaccines in addressing the COVID-19 pandemic, mRNA technology is at the forefront of transforming the world of medicine. Clinical trials are ongoing to develop both vaccines and therapies to treat infectious diseases and even cancer. 

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3D molecular visualization of circular plasmid DNA structure used in gene therapy, cell therapy, and advanced biomanufacturing workflows.

pDNA

Support rapid development and reliable manufacturing.

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3D molecular visualization of an adeno‑associated virus (AAV) vector used for gene therapy and viral vector delivery applications.

Viral Vectors

Support AAV, lentiviral, and next-generation vector production with intensified upstream and downstream solutions.

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3D molecular visualization of an antibody‑drug conjugate (ADC) structure used in advanced biologics and targeted therapeutic development.

Antibody-Drug Conjugates

Support across the ADC workflow — from antibody intermediate production through buffer exchange, aggregation control, and formulation.

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Not sure which approach fits your modality?

Tell us about your process and a field application specialist will help you map the right workflow.

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Frequently asked questions

Quick answers on how bioprocessing needs differ across modalities.

Repligen supports bioprocessing for monoclonal antibodies and recombinant proteins, viral vectors, mRNA, plasmid DNA, antibody-drug conjugates, and emerging cell-based modalities.

Each modality stresses the process differently. Viral vectors require gentle handling to preserve particle integrity, mRNA depends on efficient purification and formulation, and ADCs add conjugation and solvent considerations after the antibody is made.

AAV is most commonly used for in vivo gene therapy, while lentivirus is widely used to modify cells ex vivo, as in CAR-T therapies. Both require careful control of recovery and particle integrity through purification.

Plasmid DNA is the template used to produce mRNA by in vitro transcription and to generate viral vectors. Consistent pDNA quality early on makes downstream processing more predictable.

ADCs combine a monoclonal antibody with a cytotoxic payload, so manufacturing adds conjugation, solvent compatibility, buffer exchange, and aggregation control on top of standard antibody purification.

Repligen supports emerging and cell-based modalities with flexible, single-use fluid management, purification, and analytics that adapt as processes evolve.

Enabling Advanced Bioprocessing

From established biologics to emerging platforms, today's therapeutic modalities are transforming disease treatment. Repligen solutions are designed to help you overcome process challenges and drive the production of innovative therapies across a broad range of modalities, powering precision oncology, cell and gene therapies, and more. 

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