Fully Human Antibody / TCR Platforms

Hu-VHH Platform

Single VHH (variable heavy domain of heavy chain) domain, is half the size of scFv (single-chain fragment variable) proteins, enabling better tumor and blood-brain barrier penetration. Their simple structure simplifies manufacturing, making them ideal for bispecific antibodies and cell therapies.

  • 200+
    Hu-VHH Projects
  • ~150
    Antibody Asset Partnerships

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  • Advantages of Biocytogen's VHH Platform
  • Discovery of Novel Hu-VHHs: Nano 100 Project
  • Off-the-shelf Hu-VHHs Available for Partnership

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      Advantages of Biocytogen's Novel Hu-VHH Platform
      • The Single VHH (variable heavy domain of heavy chain) is only half the size of scFv (single-chain fragment variable) proteins, enabling better penetration of solid tumors and the blood-brain barrier.
      • Based on RenNano, fully human heavy-chain antibodies (HCAbs) or fully human VHH (Hu-VHH) do not require humanization in vitro, resulting in a faster and more cost-effective antibody discovery process.
      • It can produce fully human HCAbs with sequence diversity, good affinity, and favorable pharmacokinetic properties.
      • The simple structure of functional Hu-VHH facilitates the manufacturing process, which is crucial if the Hu-VHH will be assembled into complex modalities such as a bispecific/multispecific antibody or cell therapy.
      Novel linker/payload system BLD1102 independently developed by Biocytogen

      Briefly, BLD1102 is a new ADC platform developed by Biocytogen independently.

      • BCPT02 is a novel topoisomerase 1 inhibitor with broad-spectrum and potent tumor killing ability.
      • The uniquely designed cleavable linker has excellent hydrophilicity, making ADCs as hydrophilic as monoclonal antibodies, greatly improving ADC’s physiochemical properties.
      • BLD1102-ADCs exhibit good stability in plasma and more potent tumor killing compared to vcMMAE.
      • BLD1102 demonstrated good tolerabilities in preclinical non-human primates.
      Biocytogen's RenNano-based Hu-VHH Platform

      Hu-VHH developed from RenNano.

      Nano 100 Project

      Using RenNano, Biocytogen is creating a Hu-VHH antibody library for 100+ high-potential therapeutic targets including tumor-associated antigens, GPCRs, immune checkpoints, cytokine/chemokines, and factors related to neurological diseases.

      Biocytogen is actively seeking collaborations with global pharmaceutical and biotech companies to combine its large-scale Hu-VHH development abilities with collaborators’ expertise in Hu-VHH-related therapeutics, such as cell therapies, bispecific and multi-specific antibodies, ADCs, and RACs, to develop novel drugs with first-in-class and/or best-in-class potentials.

      Off-the-shelf Hu-VHHs Available for Partnership
      Therapeutic Area Target(s) Immunization
      • Development
      • Hits
        selection
        Leads
        selection
        Candidate
        selection
      Preclinical IND
      Oncalogy VEGFA
      4-1BB
      CD98
      ILЗRA
      MUC16
      0X40
      ADAM9
      CD28
      CD38
      CD3e
      CD71
      DLL3
      EPHA2
      FAP
      GPRC5D
      GUCY2C
      HER3
      IL6R
      MSLN
      Nectin-4
      PD-L1
      PSMA
      PTK7
      ROR1
      TROP2
      Infectious Diseases RSV
      Metabolism CD38