Pre-Clinical SIG (previously TOX SIG) 



Core Committee (L-R): Fetene Tekle (Janssen), Gareth Thomas (former member and chair), Bernd Igl (Boehringer Ingelheim), Eloisa Brook (chair, GlaxoSmithKline), Jim Saul (Covance) and Phillip Jarvis (Novartis). Luc Essermeant (Sanofi) and Ezgi Tanriver-Ayder (GlaxoSmithKline) have also recently joined the team.



To provide a forum to discuss and advance statistical topics related to Research, Discovery (including efficacy models), Regulatory and Investigative Toxicology/Safety Assessment and to promote the involvement of Statisticians in these areas.


Who we are

Our membership consists of statisticians at CROs, pharmaceutical companies and academia who are working in areas such as:

- Discovery

- Good statistical practice in in-vitro, ex-vivo and in-vivo assay development

- Reproducibility and Translation from pre-clinical to clinical

- Toxicogenomics

- Genetic Toxicology
- Acute Toxicology
- General Toxicology

- Eco-Toxicology
- Toxicokinetics
- DMPK / Pharmacokinetics
- Immuno Toxicology
- Histopathology
- Pharmacology
- Developmental and Reproductive Toxicology

- Carcinogenicity


We discuss diverse topics ranging from Dog Telemetry data analysis to Decision Trees, from Bayesian methods to dealing with irate study directors, and now have a list of over 50 affiliates on our e-mail distribution list. 

Find out more in our video overview:


Upcoming Events

The PSI Pre-clinical Special Interest Group have a series of regular FREE webinars dealing with statistical topics faced in pre-clinical and related fields. The presentations will run for an hour, with approximately 45 min presentation and a Q&A session in the remaining time. See section below for details of this year’s webinars. 


PSI Pre-Clinical workshop is back! This year it will be run virtually, including a training course on Bayesian Statistics for Preclinical Research: New Opportunities.

The workshop will be on Wednesday 21st September and Thursday 22nd September 2022 with a training course given by Bruno Boulanger and Brad Carlin from PharmaLex along with presentations on applications of Bayesian methodology given by Marie Miossec from IT&M stat focusing on Bayesian tumor volume analysis with BRMS R package and Helena Geys from Janssen focusing on Bayesian Generalized Frailty Model for Comet Assays.

Key topics covered by the course include:

  • Define the question and the research objective
  • Strategies for determining, using, and checking robustness of prior distributions
  • Replacing experiment-based decisions in favor of project-based decision
  • Use of informed control groups and unbalanced designs
  • Design of the overall project, integrating the potential sources of irreproducibility in advance
  • Progress under uncertainty, adoption of adaptive designs
  • Designing experiments using Bayesian assurance, rather than power
  • Understand risks and predictive probability of success to meet the objective
  • Bayesian incorporation of real world evidence (RWE)
  • Examples of Bayesian programming using R/STAN/BUGS and SAS


Please note that this event will take place online via Zoom, and has a limited number of places available. For more information and to register for this workshop, please follow this link: PSI Pre-Clinical SIG Workshop 2022 (

Preclinical SIG



We are planning to hold our 10th and first fully virtual 1.5 day workshop on 21/22 September, 2022.

DateTitle Presenter 
21/22 Sept

Workshop including a training course and presentations on the application of Bayesian Methods in Preclinical Environment

Bruno Boulanger, PharmaLex  Bradley Carlin, PharmaLex    

Marie MiossecIT&M Stats    Helena Geys, Janssen

For more information and to register please click here



The PSI Pre-Clinical Special Interest Group seminars for 2022 are as follows: 





12 April

Optimal Experimental Design in Preclinical Dose Response Studies

Dr. Tim Holland-Letz, DKFZ

To access the video on demand, please click here

21 June

Regression to the mean, dilution and bridging studies illustrated in R

Dr. Bernard Francq, GSK

To access the video on demand, please  click here
4 October

Therioepistemology: Rethinking how we conduct animal-based experimentation

Dr. Brianna Gaskill, NovartisTo access the video on demand, please click here




How to get in touch

Please email us with any questions or comments and if you would like to join our mailing list.


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