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Bispecific Antibody Production Services

High-Titer, Premium-Purity Bispecific Antibodies Across Diverse Formats

WuXi Biologics CRO Services specializes in delivering high-titer, high-purity bispecific antibodies across diverse formats, such as CrossMab, scFv-Fab, and Fc-fusion. Our bispecific antibody production services span from HTP, small-scale production for optimal pairing identification to gram-level bsAb production with >98% heterodimer purity. Backed by extensive experience in addressing complex production challenges, we deliver premium-quality bsAbs suitable for in vitro assays and in vivo studies.

 

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Core Strength

Bispecific Antibody Production Service Highlights

LC-MS-Guided Premium Quality

Deliver bsAbs with >98% heterodimer purity and <0.1 EU/mg endotoxin through LC-MS-assisted purification and QC

Ultra-High-Titer CHO Production

Achieve 2.6 g/L for control mAbs and 1.5 g/L for project bsAb molecules from 7-day culture

Extensive Expertise in Any BsAb Format

Support all sorts of bispecific antibody formats, such as CrossMab, scFv-Fab, Fc-fusion, and bispecific VHH


~ 11,000

BsAbs produced annually

~ 14,000

Molecules tested by LC-MS annually

~ 200

BsAbs advanced to CMC
Service Details

Bispecific Antibody Production Service Details

01

Quick ‘n’ Clean: HTP Bispecific Antibody Production

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  • 1-5 mg bispecific antibodies from 20 mL CHO cell culture in 3-4 weeks
  • 99% heterodimer purity, >95% monomer, and endotoxin level <0.1 EU/mg
  • 3-step automated purification system (including SEC)
  • Support one-arm, VHH, scFv-Fab, and common LC bsAb formats
  • Ideal for optimal pairing screening and suitable for most in vitro and some in vivo studies
02

TFC Quick ‘n’ Clean: HTP Four-Chain Bispecific Antibody Production

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  • 1-10 mg bispecific antibodies from 20 mL CHO cells in 3-4 weeks
  • ~99% heterodimer purity, >95% monomer purity, and <0.1 EU/mg endotoxin, with LC-MS-assisted QC
  • 2-3-step automated purification workflows (including SEC)
  • Support bsAbs with 2 different LCs
  • Ideal for optimal pairing screening; high-quality tagless bsAbs suitable for ADC conjugation, in vitro assays, and in vivo studies
03

Premium BsAb: LC-MS-Assisted, Large-Scale Bispecific Antibody Production

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  • 10 mg to gram-level bispecific antibodies in 4-5 weeks
  • LC-MS-assisted purification, usually achieving >98% heterodimer purity and <0.1 EU/mg endotoxin
  • Chain ratio optimization (upon request) and custom 2-3 step purification to enhance titer and purity
  • Support diverse formats, such as CrossMab, scFv-Fab, and Fc-fusion
  • Suitable for in vitro and in vivo studies
Case Studies

Supporting High-Purity Bispecific Antibody Production from High Throughput to Gram Scale

Case Study 1: High-Throughput Production of Tagless Four-Chain Bispecific Antibodies for ADC Conjugation, In Vitro Assays, and In Vivo Studies

This case study highlights a high-throughput workflow for producing and screening 26 tagless four-chain bispecific antibodies for ADC conjugation and downstream in vitro and in vivo evaluation. Built on the WuXiBody™ backbone and supported by codon optimization and customized purification workflows, the platform enabled rapid screening of 26 bispecific ADCs via HTP conjugation, dual binding, internalization, and cytotoxicity assays.

Figure showing high-throughput production of tagless four-chain bispecific antibodies for ADC conjugation, in vitro assays, and in vivo studies.

Case Study 2: LC-MS-Guided Bispecific Antibody Production Delivers a High-Purity 2+1 Bispecific Antibody at Liter Scale+

This case study highlights LC-MS-guided purification of a complex 2+1 bispecific antibody with complex byproduct profiles consisting of LC mispairing, chain loss, and half-antibodies. A CEX-HIC polishing workflow removed mispaired and truncated variants. From 5 L CHO culture, the final material achieved 1.05 g/L titer, 926 mg yield, and 97% heterodimer purity within 4 weeks, demonstrating the value of LC-MS-guided purification for complex bispecific formats.

Figure showing LC-MS-guided purification of a 2+1 bispecific antibody at liter scale.

Why WuXi Biologics

Why Work with WuXi Biologics for Bispecific Antibody Production

  • Ultra-High-Titer CHO Production: Generate bsAbs with ~1.5 g/L average titer for project molecules to support bsAb drug discovery
  • Premium Bispecific Antibody Quality: Deliver high-purity bsAbs with >98% heterodimer purity and <0.1 EU/mg endotoxin, with LC-MS-guided purification and QC
  • High-Throughput to Gram-Level Support: Move from small-scale optimal pairing screening to gram-level material generation for in vitro and in vivo studies
  • Diverse Format Expertise: Extensive expertise in diverse bispecific antibody formats, such as CrossMab, scFv-Fab, Fc-fusion, and bispecific VHH

Get Started

Move from BsAb Pair Screening to High-Quality Production for Pharmacology Studies Faster

Advance your bispecific antibody drug discovery projects with WuXi Biologics’ premium-quality bispecific antibody production services. From high-throughput production for optimal pairing screening to gram-level production of diverse bispecific antibody formats, we help deliver >98% heterodimer purity and <0.1 EU/mg endotoxin for in vitro assays, in vivo studies, to advance to CMC development with extensive expertise.