RT Journal Article
SR Electronic
T1 Designing robust N-of-1 studies for precision medicine
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 380980
DO 10.1101/380980
A1 Bethany Percha
A1 Edward B. Baskerville
A1 Matthew Johnson
A1 Joel Dudley
A1 Noah Zimmerman
YR 2018
UL http://biorxiv.org/content/early/2018/07/31/380980.abstract
AB Recent advances in molecular biology, sensors, and digital medicine have led to an explosion of products and services for high-resolution monitoring of individual health. The N-of-1 study has emerged as an important methodological tool for harnessing these new data sources, enabling researchers to compare the effectiveness of health interventions at the level of a single individual. We have developed a stochastic time series model that simulates an N-of-1 study, facilitating rapid optimization of N-of-1 study designs and increasing the likelihood of study success while minimizing participant burden. Using simulation, we demonstrate how the number of treatment blocks, ordering of treatments within blocks, duration of each treatment, and sampling frequency affect our ability to detect true differences in treatment efficacy. We provide a set of recommendations for study designs based on treatment, outcome, and instrument parameters, and provide our simulation software as a supplement to the paper.