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ENGINEERING THE NEXT GENERATION OF PRECISION BIOLOGICS

Expanding the Genetic Blueprint:

Novel Conjugation Sites Engineered with Synthetic Amino Acids that Improve Therapeutic Properties of Biologics

Delivering on the promise of antibody-conjugates and protein therapeutics

BrickBio's industry-leading expanded genetic code platform enables precise, multi-site conjugation of antibodies and proteins - Unlocking therapeutics with improved efficacy, safety, and therapeutic index.

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 Therapeutics have relied on suboptimal conjugation methods, resulting in a staggering number of failed therapeutics due to; heterogeneity, lack of stability, or lack of precise control of the conjugation site.

Optimal Conjugation Sites for Best-in-Class Molecules

BrickBio Identifies Stable Conjugation Sites to

Shield ADC Payloads and Optimize their Activity

  • BrickBio's mammalian expression systems enable efficient synthetic amino acid (conjugation handle) incorporation at any site within a protein backbone

    • Multiple tRNA/Amino Acid pairs allow for one step, multi-drug conjugation

  • SiteSelect Panel can predict and screen 50+ sites within weeks to optimize lead drug substance​

    • Mammalian optimized tRNA's allow for antibodies, nanobodies, Oligonucleotides, and AAV to be modified with optimized conjugation handles​

  • Existing conjugation technologies with unstable and limited sites lead to poor clinical outcomes

  • Previously inaccessible sites and various conjugation chemistries enable tunable biophysical characteristics and conjugation flexibility

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BRKB-300: First-in-Class Optimized, High-Potency B7-H3 ADC

BRKB-300 contains a differentiated MOA payload to get around Topo resistance:

IND-Enabling studies in Progress

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Safer, More Efficacious Therapeutics, with any Payload

BrickBio ADCs are 5x safer and more efficacious with Conjugation Alone than

other conjugation strategies with the same linker-payload

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  • BrickADC therapeutic index outcompetes cysteine, other site-specific conjugation technologies, and FDA approved ADCs.

  • Improvements derived from: Novel Site of Conjugation, Stable Conjugation, Reduced HydrophobicityTuned Exposure, Lower Hydrodynamic Radius, Optimized Cleavage KineticsAdditional Biophysical Optimization

High-Throughput Site Prediction for Any Payload

Site-Selection Panel Algorithm is Driven by Thousands

of Empirical and Literature-Backed Data Points for Any Payload Structure

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  • New or existing payload structures can be analyzed for optimal conjugation sites in silico (see above) and rapidly tested in vitro/in vivo, Saving Months of R&D 

  • Reproducible prediction demonstrated with partnered and internal assets

PLATFORM

Expand the ADC Status Quo: Multi-Payload Conjugates

Combine multiple distinct payloads with synergistic mechanisms of action

for unprecedented patient outcomes

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  • Multi-payload conjugation is performed in a one-pot reaction providing a simplified CMC process

  • First-in-Class stable CHO cell line for commercial scalability

  • Addresses unmet need: payload resistance, low efficacy, incomplete cancer immunity cycle

Beyond ADCs: Gene Therapy, Oligonucleotides, and Nanobodies 

One platform. Any protein. Any payload. Targeted delivery across gene therapy, oligonucleotides, nanobodies, and beyond.

  • Control tissue delivery - without requiring extensive re-design

    • AAV: Precisely incorporate an unnatural amino acid at a defined capsid position, enabling precise controlled attachment of targeting ligands

    • Oligonucleotides: Modulate site of conjugation for improved stability, reduced hydrophobicity, and with various conjugation chemistries - any combination is possible

    • Nanobodies: Antibody fragments and VHH-based therapies become modular variables of an equation, overcoming first generation downfalls of genetic fusions with spatially defined chemical assembly

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  • "A facile chemical strategy to synthesize precise AAV-protein conjugates for targeted gene delivery" demonstrates enhanced infectivity into HER2 positive tumors using BrickBio's chemical conjugation to attach full length antibodies to an AAV2 capsid.

Current Investors

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Pipeline
Pipeline

Pipeline Snapshot

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RECENT NEWS

RECENT NEWS

Management Team

CEO, CO-FOUNDER,

TIGER GENE

SENIOR ADVISOR &

CHAIRMAN OF SAB

DIRECTOR OF CELL LINE ENGINEERING

SENIOR SCIENTIST, R&D

CHIEF BUSINESS OFFICER

OUR TEAM

Publications

*Under Construction*

Careers

Partners: 
Bring us your Molecule. We'll Help You Make It Better

OUR ADDRESS

600 Winter Street

Waltham, MA, 02451, USA

For any general inquiries, please fill in the following contact form:

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