J&S Preclinical Solutions
We provide a strong integrated approach of preclinical pharmacology and toxicology to bring your drug development program to a higher level faster and more efficiently. Our Expertise
About us





Senior Consultant Pharmacology
Julien Villaudy is an experienced pharmacologist with over 12 years of experience in academia and industry.
Senior Consultant Toxicology
Sjeng Horbach is a Toxicology expert with over 35 years of experience.
Our expertise
J&S Preclinical Solutions support your preclinical drug development programs.
We can assist you with designing, executing and reporting your preclinical pharmacology studies and toxicology studies. We strongly believe that the integration of toxicology and pharmacology readouts early in the development program is an asset that will strengthen and accelerate your drug development.
Tell us more about your program.
Our clients
Sjeng Horbach brings enormous experience in toxicology, building on an outstanding track record in supporting all stages of drug development for small and large molecules. I have had the pleasure of working with Sjeng on a large and diverse set of therapeutic antibodies ranging from canonical antibodies to antibody-drug conjugates and bispecific antibodies, with a recent emphasis on immune-oncology compounds including T-cell engagers. Sjeng is not only very knowledgeable and collaborative, but also very pleasant to work with. I recommend him most highly.
J&S Preclinial Solutions combines decades of preclinical safety assessment and cutting-edge in vivo efficacy experience in immunology/oncology with a getting-things done mentality and taking responsibility, accountability and on top of that great personalities. This mix is pushing any project at hand forward in a great Team spirit.