Our Experience. Tessella and Berry Consultants have been building smarter clinical trials including groundbreaking adaptive Bayesian designs together for more than 10 years; in fact Berry Consultants’ founder Prof Don Berry has more than 25 years experience. No organization has worked on more trials and on a greater variety of indications.

Our Proven Expertise. Tessella and Berry Consultants are at the forefront on smarter clinical trials and work with an array of global clients representing all areas of the life-science industry.  Learn more about the state of clinical trials, FDA regulatory stances, and trial optimization at our Expert Opinion Blog.

Our Clients’ Success. Our clients are saving $millions on their drug development programs, doing better science, and reducing patient exposure by using Tessella/Berry clinical trials technology. Since 2000 over 100 Adaptive Clinical Trials have been designed for use in medical device, biotech and pharmaceutical companies.  

12 of the top 20 pharmaceutical companies work with us on a range of drug development projects. Clients include: