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ADC Payloads and Linkers

As Antibody-drug conjugates (ADCs) advance, developers face increasing challenges in securing capacity and expertise that can safely scale complex multi-step processes. SK pharmteco delivers custom development and manufacturing of ADC payloads and linkers at all scales.

ADC Payload and Linker Capabilities

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Robust Safety Culture

Safety is built into every step to protect personnel and product integrity. Specialized facilities, process design, and engineering controls enable OELs as low as
10 ng/m³.

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Complex Chemistry Experience

With decades of expertise in HPAPIs and commercial supply of ADC linkers, we combine advanced chemistry and world-class chromatography to deliver APIs with high purity and consistency.

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Scalable Capacity

Our facilities support payload and linker development and manufacturing at all scales. Our new kilo-scale payload facility (mid 2026) expands capacity for your
ADC programs.

IND-Enabling Preclinical Development Services

SK pharmteco’s IND-enabling preclinical package delivers end-to-end support for preclinical gene therapy studies and includes access to a proprietary manufacturing cell line, streamlined process development services, and scalable preclinical vector manufacturing services, as well as regulatory support for INitial Targeted Engagement for Regulatory Advice on CBER/CDER ProducTs (INTERACT) and pre-IND meetings.

This package:

  • Enables partners to generate high-quality material and data in months and positions them to move rapidly toward IND approval and CGMP clinical manufacturing
  • Supplies drug substance and drug product for proof-of-concept, toxicology, safety, and biodistribution studies, as well as method development, interim reference standards, development stability, and drug product development critical for IND packages
  • Employs similar processing techniques as would be used for full CGMP manufacturing, eliminating comparability risks associated with process changes

Additional analytical testing and regulatory services are available to prepare data briefing packages for INTERACT and pre-IND meetings. Upon completion of preclinical manufacturing, clients have full visibility into the data from execution, production, and purification — a critical data set for clinical program sponsors.

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