Addressing Placebo Response
Area of concern
Major Depressive Disorder
150 Sites, 550 Raters
Full suite of services (scale management, rater training, in-study quality assurance), with special emphasis on applied training in interview technique.
Problem: High placebo response in affective disorders
Although there is placebo response in almost all disease areas in CNS, it is particularly high in affective disorders. There has been limited research to show which methodological approaches reduce placebo response or enhance signal detection.
Our Solution: Applied training in interview technique
One of very few variables that have been empirically associated with improved signal detection and better separation from placebo is the quality of the clinical interview through which outcome data is collected. We designed an individual applied training program that would specifically address interview technique and used a variety of other data points to target this approach to a subset of investigators.
Result: High-impact low-burden intervention
With minimal intrusion into research site activities and with no impact on overall project timelines, we were able to deploy individualized applied training for a global cohort of investigators and improve the validity of the data they collected. This experience with placebo response has compelled us to further research the reason for unreliability in clinical trials.