Radiolabeled Studies with Biologics: When, How and Why?
22 April 2026
8 am PT / 11 am ET / 4 pm GMT
About our DMPK Webinar on Radiolabeled Studies:
It is important to understand where biological therapeutics go in the body and how they behave when they get there. This knowledge is key to predicting how safe, effective and ultimately successful they will be.
In this webinar, scientists from Pfizer and Pharmaron explore how radiolabeled studies using tritium, iodine?125, and advanced autoradiography techniques, can reveal the real journey of how biotherapeutics travel through different tissues.
We look at case studies featuring immunomodulatory peptides and recombinant proteins, highlight practical strategies for selecting radiolabels, interpreting biodistribution profiles, and overcoming challenges related to protein size, target engagement, and complex tissue environments.
This session is ideal for scientists working in DMPK, biologics, PK/PD, and drug discovery, or anyone looking to deepen their understanding of biological drug behaviour.
What You’ll Learn
Attendees will gain a deeper understanding of:
- Understand when and why biodistribution studies add value for biological therapeutics, including how size, target binding, and pharmacology influence distribution outcome.
- Compare radiolabelling strategies for biologics and learn best practices for 3H and 125I tagging. This covers isotope selection, common pitfalls for strategy design, and impact on biological activity.
- Learn how to interpret biodistribution and PK data through real-world case studies. Case studies feature peptides and recombinant proteins, with insights into immune-cell uptake, organ-specific distribution, and placental transfer.
