Disposition of Radiolabelled Biologics

A gloved hand holds a film with tissue samples under a machine, used for analyzing the disposition of radiolabeled biologics.

Disposition of Radiolabelled Biologics Services

With many years of experience performing large molecule ADME studies, Pharmaron’s biologics team conducts studies for a diverse range of large molecules, including peptides, proteins, ADCs, fusion proteins, antibodies and oligonucleotides. We can use either 14C or 3H and we also offer a proprietary rapid tritium tagging technique. Once the molecules are radiolabelled, we provide an extensive range of ADME and PK studies to support development of 14C/3H biologics.

Our team offers a wide range of radiolabelling options depending on the nature of the large molecule.  Pharmaron is also able to support the disposition of potent biologics with ultrasensitive quantitative AMS analysis of 14C radiolabelled biologics.

A scientist in a lab coat and gloves examines samples through a microscope, conducting radiolabelled biologics disposition studies.

Synthesis of Radiolabelled Biologics

  • Radiolabelling of peptides, oligonucleotides, proteins, antibodies & antibody-drug conjugates (ADCs) with 3H or 14C
  • Covalent radioisotope tagging with 3H (RadioTag) for macromolecules
  • 3H oligonucleotide synthesizer

A scientist wearing purple gloves uses a pipette to handle a sample tube during radiolabelled biologics disposition analysis.

Non-clinical ADME

  • In vitro/in vivo metabolism studies with 3H and 14C
  • Tissue distribution imaging and quantitation with QWBA and MARG (microautoradiography)
  • Disposition of potent biologics with quantitative analysis by AMS and LC-AMS
  • Differential tissue distribution with BeaQuant® for dual 3H/14C radiolabelled macromolecules
A scientist prepares a sample using a pipette, while another scientist works with a microscope in the background, focusing on radiolabelled biologics research.

Sample Analysis for Biologics

  • GLP sample analysis to support toxicology (TK) and clinical studies (PK)
  • Large molecule PK/PD, immunogenicity (ADA), biomarkers, and neutralizing antibody (NAb) assays
  • Flow cytometry and immunophenotyping
  • Ultra-sensitive analysis of 14C biologics with AMS
A close-up of an automated system analyzing vials for the disposition of radiolabelled biologics, with precise machinery and sample tubes.

Pharmacology Models with 14C and 3H Compounds

  • Disease models for oncology, CNS, pain, metabolic diseases and inflammation
  • Rapid RadioTag imaging techniques with 3H to support pharmacology models