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Date: Wednesday, October 15, 2025

Time: 10 a.m. ET, 4 p.m. CEST

Summary

Concomitant medication use is widespread and presents a risk for patients in clinical trials and real world treatment settings. The risk is greater for older adults and patients with chronic conditions.

While automated warning systems act as a safeguard for patients prescribed licensed medications, protections against drug-drug interactions (DDIs) for clinical trials involving investigational medicinal products are often incomplete or inconsistent, leaving patients dvulnerable to harmful adverse events.

The latest innovation built on Certara’s Drug Interaction Database (DIDB®) platform is the most complete, interactive list of drug interaction characteristics available today, with up to 5-6X the number of compounds and characteristics compared to publicly-available resources like the FDA and ICH. The Concomitant Meds Navigator is an essential, evidence-based tool for pharmaceutical sponsors and clinical researchers to greatly improve DDI management during clinical trials, particularly in early development when accurate instructions are challenging to obtain. By quickly identifying concomitant medications that are contraindicated, require dose adjustments, or need monitoring during the trial, the Navigator minimizes the risk of pharmacokinetic drug interactions and enables the safe and effective evaluation of investigational products.

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In this webinar, you'll get a better understanding of how to:

  • Search a comprehensive list of drug characteristics including substrates, inhibitors and inducers for enzymes and transporters, anchored to marker studies, to assess potential DDI risk and inform clinical drug development strategies
  • Improve drug labeling and provide greater clinical context with specific examples of concomitant medications related to your target patient population
  • Interpret the deeper insight and nuance behind each classification by analyzing contextual information such as changes in exposure, supporting DDI and pharmacogenetic data, and pharmacokinetics detail

Meet our speakers

Isabelle Ragueneau-Majlessi
Isabelle Ragueneau-Majlessi, MD, MS

Distinguished Scientist

Dr. Ragueneau is a Clinical Professor Emeritus from the University of Washington where she co-founded the Drug Interaction Database (DIDB) over 25 years ago. At Certara, she is the head of the Drug Interaction Solutions program. Isabelle is a clinical pharmacologist by training, with a deep expertise in the evaluation of drug-drug interactions mechanisms and clinical significance. In 2022, she received the Gary Neil prize for innovation in drug development from the ASCPT in recognition of her extensive work with the DIDB and the impact of the tool on drug interaction research.

Katie Owens, BPharm, PhD

Senior Research Scientist

Dr. Owens joined the Drug Interaction Database (DIDB) team in March 2015 as a curator of preclinical and drug interaction studies. She holds a PhD in clinical pharmacy from the School of Pharmacy, University of Otago (Dunedin, New Zealand) as well as a Bachelor of Pharmacy (BPharm). Katie’s PhD research investigated the clinical pharmacology and toxicology of paracetamol (acetaminophen) in various patient populations. This was followed by a post-doctoral research position in the area of modeling and simulation in drug development within the Division of Clinical Pharmacokinetics and Pharmacometrics, Institut de Recherches Internationales Servier (Paris, France).

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