Services

Services

BOC Sciences integrates the antibody-drug conjugate services to offer comprehensive one-stop antibody-drug conjugate research and evaluation services. As a research-oriented and customer-based company, we are committed to helping global customers expedite ADC drug development and manufacture cost-effectively. In BOC Sciences, our customers know us as a professional and attentive partner who delivers quality results, and our services are designed to ensure each project goal is met and exceeded.

What is an Antibody Drug Conjugate?

What is an Antibody Drug Conjugate

Combining monoclonal antibodies (mAb) targeting cancer-specific antigen with cytotoxin has revealed great potential as a novel targeted cancer therapy. Antibody-drug conjugates (ADCs) are a new class of therapeutic agents that contain the targeting ability of mAbs with small molecular drugs. Due to the significant differences in ADCs drug designs, including the differences in recognition sites, connection sites, linker design, and small-molecule toxins, the ADCs drugs' overall efficacies and toxicities of the same target may not be the same. The complete development process of ADCs drugs from preclinical to clinical involves target verification, process characterization, preclinical efficacy and safety evaluation, pharmacokinetic model, clinical design, and efficacy evaluation.

A suitable selection of components is the key to successful ADCs development. In order to achieve specific delivery of a cytotoxic payload, target antigen must be highly expressed on the surface of tumor cells rather than the normal cells. Thus, conjugating mAbs to highly potent cytotoxic payloads facilitates site-specific delivery to the target cells and minimizes off-target rate cytotoxicity. Upon binding to the specific antigen, antibodies were absorbed through rapid internalization followed by lysosomal degradation and subsequently releasing cytotoxins inside the cell. As a result, ADCs can be used to deliver cytotoxic drugs to cancer cells.

Why Choose BOC Sciences?

Comprehensive  Product Line

Comprehensive Product Line

Mature linker and cytotoxin synthesis technology

Competitive  Pricing

Competitive Pricing

High quality, low-cost products - most products are in stock

Flexible  Ordering Options

Flexible Ordering Options

Milligram to gram laboratory-scale (mg to g)

Strict  Quality Control Testing

Strict Quality Control Testing

TGA, 13C-NMR, 1H-NMR, HPLC, MS, GC, and IR

cGMP-Grade  Production

cGMP-Grade Production

Batch production according to specific needs

ADC Development Services

Antibody Modification and Conjugation

With our state-of-the-art equipment and extensive R&D expertise, BOC Sciences can provide customized antibody modification and conjugation technologies with high specificity and affinity with a quick turnaround time. The conjugation method can directly affect the ADC's quality, thereby regulating the safety and efficacy of products. Some strategies for antibody modification and conjugation include:

ADC Analysis and Characterization

ADCs are complex molecules with unique critical quality attributes (CQAs). BOC Sciences used to analyze and characterize the antibody-drug conjugate is divided into three modules, which measure the structural characterization, drug effect, and drug impurities of antibody-conjugated drugs to ensure comprehensive analysis and evaluation of ADCs structures and drug effects. Our quality assessment services include:

ADC Payload Development

BOC Sciences' ADC manufacturing platform provides various effective payloads development services ranging from laboratory scale (mg to g) to GMP production (kg). We provide payloads for various targets according to the needs of customers, including microtubule inhibitors, DNA inhibitors, RNA polymerase inhibitors, protein toxins, and enzyme toxins. Our payloads development services include:

ADC Linker Development

Linkers are essential parts of ADCs, which connect mAbs to payloads and stabilize circulation until ADCs reach target cells for payload releases. BOC Sciences offers flexible ADC linker product suites and development services at competitive prices. Large-scale linkers from kilograms are synthesized based on GMP, and laboratory-scale from milligrams to grams. Some linker types include but are not limited to non-cleavable linkers and cleavable linkers.

ADC Linker and Cytotoxin Conjugation

In the construction of ADCs, the specific combination of linkers and cytotoxins is most likely to differentiate the efficacy of ADC drugs and patented. As an experienced manufacturer in ADC conjugation and process amplification, BOC Sciences can supply mature linker and cytotoxic technology to accurately control the ADC coupling process in a GMP environment with complete QA/QC supervision.

ADC Development Platform

Linkers are essential parts of ADCs, which connect mAbs to payloads and stabilize circulation until ADCs reach target cells for payload releases. BOC Sciences offers flexible ADC linker product suites and development services at competitive prices. Large-scale linkers from kilograms are synthesized based on GMP, and laboratory-scale from milligrams to grams. Some linker types include but are not limited to non-cleavable linkers and cleavable linkers.

ADC Manufacturing

BOC Sciences offers robust ADC manufacturing capabilities designed to support the entire production lifecycle, from early-stage development to large-scale cGMP manufacturing. Our manufacturing services can meet clinical and commercial development needs and equip cGMP and ISO-certified contract manufacturing facilities. Leveraging advanced facilities and a team of specialized scientists, we provide efficient and customizable solutions to meet unique client needs. Our service encompasses all essential steps, including antibody production, linker-payload synthesis, conjugation optimization, and rigorous quality control.

ADC Services Workflow

Scheme Design and Contract Customization

Scheme Design and Contract Customization

Payload/Linker Synthesis

Payload/Linker Synthesis

Scheme Design and Contract Customization

Screening Combinations and Conjugation

Analysis, Purification and Characterization

Analysis, Purification and Characterization

cGMP Manufacturing and Filling

cGMP Manufacturing and Filling

Result Delivery

Result Delivery

ADC Products

BOC Sciences specializes in providing a comprehensive range of high-quality ADC products to support innovative research and development. Our offerings include custom synthesis of ADC linkers, payloads, and fully conjugated ADCs, ensuring precision and consistency. With cutting-edge facilities and strict quality control, we deliver tailored solutions for pharmaceutical and biotechnology applications. BOC Sciences also excels in flexible production scales, competitive pricing, and rigorous cGMP compliance, meeting the demands of both preclinical and commercial projects.

ADC Cytotoxins

ADC Cytotoxins

BOC Sciences offers a comprehensive portfolio of ADC cytotoxins, designed to meet the stringent requirements of ADC development. Our expertise encompasses the synthesis of a wide range of highly potent cytotoxic agents, including auristatins, maytansinoids, calicheamicins, and more. With advanced manufacturing facilities and strict quality control measures, we ensure the production of cytotoxins with high purity, stability, and activity.

ADC Linkers

ADC Linkers

Our extensive portfolio includes cleavable and non-cleavable linkers, such as hydrazone, disulfide, peptide, and PEG-based linkers, tailored to enhance ADC stability and drug release efficiency. With cutting-edge facilities and a team of experts, we provide custom synthesis and scalable production to meet diverse project requirements. Stringent quality control ensures each linker meets the highest purity and performance standards.

ADC Cytotoxin with Linkers

ADC Cytotoxin with Linkers

BOC Sciences excels in providing ADC cytotoxins with linkers, offering fully integrated solutions for ADC development. With advanced synthesis platforms and strict quality control, we deliver high-purity products that meet the demands of preclinical and commercial projects. Our expertise allows for custom design and scalable production tailored to your specific requirements. Partner with BOC Sciences to accelerate your ADC innovation with reliable, high-performance cytotoxin-linker solutions.

Antibody-Drug  Conjugates

Antibody-Drug Conjugates

BOC Sciences provides end-to-end solutions for ADC assembly, enabling the seamless integration of antibodies, linkers, and cytotoxins into fully functional ADCs. Our advanced conjugation technologies ensure precise DARs and optimal stability, tailored to specific project requirements. Supported by state-of-the-art facilities and cGMP-compliant processes, we deliver high-quality ADCs for both preclinical and commercial-scale applications.

References

  • Thurston, D.E. et al. Use of pyrrolobenzodiazepines and related covalent-binding DNA-interactive molecules as ADC payloads: Is mechanism related to systemic toxicity? Drug Discovery Today: Technologies. 2018, 30: 71-83.
  • Chauhan, S.C. et al. Antibody-Drug Conjugates for Cancer Therapy: Chemistry to Clinical Implications. Pharmaceuticals. 2018, 11: 32.
* Only for research. Not suitable for any diagnostic or therapeutic use.
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