U.S. regulatory considerations and case studies for rare diseases
In this talk, I will present an overview of the U.S. Food and Drug Administration’s policies and practices for encouraging development of products for rare diseases and of evaluating clinical evidence for the safety and effectiveness of such products. I’ll discuss study designs that may be particularly appropriate for rare disease product development, and address some of their statistical implications. Finally, I’ll present case studies of products that were approved for rare diseases using unusual or innovative study designs and/or regulatory pathways.
John Scott is Deputy Director of the Division of Biostatistics in the FDA's Center for Biologics Evaluation and Research, where he has also served as a statistical reviewer for blood products and for cellular, tissue and gene therapies. Prior to joining the FDA in 2008, he worked in psychiatric clinical trials at the University of Pittsburgh Medical Center and did neuroimaging research with the Neurostatistics Laboratory at McClean Hospital, Harvard Medical School. He has authored or co-authored numerous articles in areas including Bayesian and adaptive clinical trial design and analysis, drug and vaccine safety, data and text mining, and benefit-risk assessment. He holds a Ph.D. in Biostatistics from the University of Pittsburgh and an M.A. in Mathematics from Washington University in St. Louis, and is an associate editor of the journal, Pharmaceutical Statistics.
Bayesian methods for the design and interpretation of clinical trials in rare diseases
For studies in rare diseases, the sample size needed to meet a conventional frequentist power requirement can be daunting, even if patients are to be recruited over several years. Rather, the expectation of any such trial has to be limited to the generation of an improved understanding of treatment options. We propose Bayesian approaches for the conduct of rare disease trials comparing an experimental treatment with a control when the primary endpoint is binary or normally distributed. We describe processes which can be used to systematically elicit from clinicians opinions on treatment efficacy in order to establish Bayesian priors for unknown model parameters. The proposed approaches are illustrated by describing applications to two Bayesian randomised controlled trials, namely a study in childhood polyarteritis nodosa and a study in chronic recurrent multifocal osteomyelitis. Once prior distributions have been established, consideration of the extent to which opinion can be changed, even by the best feasible design, can help to determine whether a small trial is worthwhile.
Lisa Hampson is a Lecturer in Statistics at Lancaster University. Her research interests are in clinical trials, including group sequential tests and Bayesian methods for trials in rare diseases and dose-escalation. Her recent research has focused on developing methods for clinical trials of new medicines for children. She holds a PhD in Statistics from the University of Bath.
PSI Webinar: Wearable Technologies - Challenges and Opportunities
Wearable technologies and digital health data offer great opportunities for studying patients functionally in real life settings. Actigraphy, for example, can be used as part of clinical trials to collect continuous movement data, but the frequency of data collection results in dense datasets requiring extensive processing and signal detection. In this webinar, a panel of expert speakers will discuss how such aspects can be addressed to help realize the promise of these technologies.
Our annual PSI Medical Statistics Careers Event, will be held online using the Career Fair Plus app on Wednesday 3rd March 2021. The event will include a live online panel discussion and a virtual exhibition session.
Discover your extraordinary potential by working as a Covance AD, Biostatistics / Senior Principal Biostatistician. You will consult in the design of complex and innovative studies & clinical trial programs as well as Leading DMC/DSMB processes.
By joining our company, in this role you will apply your skills and experience in support of developing scientifically based arguments aiming to provide fair accessibility to our company’s drugs and vaccines making a real difference in patient’s lives.
Senior Principal / Principal Biostatistician (Oncology) – FSP
Join our team as a Covance FSP Senior Principal or Principal Biostatistician. You will be assigned to one Sponsor working on Phase I and II oncology studies. Previous Lead experience essential. Office or home-based anywhere in Europe or South Africa.