Validation of a suite of ERP and QEEG biomarkers

Nov 21, 2023 | Blog, News, Posters, Press Releases, Uncategorized

Validation of a suite of ERP and QEEG biomarkers in a pre-competitive, industry-led study in subjects with schizophrenia and healthy volunteers


Written by: M. Cecchi a,*, M. Adachi b, A. Basile c, D.L. Buhl d, H. Chadchankar e, S. Christensen f, E. Christian g, J. Doherty h, K.C. Fadem a, B. Farley h, M.S. Forman i, S. Honda b, J. Johannesen h, B.J. Kinon j, D. Klamer k, M.J. Marino c, C. Missling k, P. O’Donnell h, T. Piser l, C.B. Puryear m, M.C. Quirk h, M. Rotte e, C. Sanchez n, D.G. Smith n, J.M. Uslaner c, D.C. Javitt o, R.S.E. Keefe p, D. Mathalon q, W.Z. Potter r, D.P. Walling s, L. Ereshefsky s,t a

Cognision, KY, USA b Astellas Pharma, CA, USA c Merck & Co., Inc., Kenilworth, NJ, USA d Takeda Pharmaceuticals, MA, USA e Novartis, MA, USA f Lundbeck, Denmark g Gilgamesh Pharmaceuticals, NY, USA h Sage Therapeutics, MA, USA i Passage Bio, PA, USA j Cyclerion Therapeutics, MA, USA k Anavex Life Sciences Corp., NY, USA l Onsero Therapeutics, MA, USA m Praxis Precision Medicines, MA, USA n Alkermes, MA, USA o Columbia University, NY, USA p VeraSci, NC, USA q University of California, San Francisco, CA, USA r Independent Consultant, Philadelphia, PA, USA s CenExel Research, USA t University of Texas Health Science Center at San Antonio, TX, USA


Objective: Complexity and lack of standardization have mostly limited the use of event-related potentials (ERPs) and quantitative EEG (QEEG) biomarkers in drug development to small early phase trials. We present results from a clinical study on healthy volunteers (HV) and patients with schizophrenia (SZ) that assessed test-retest, group differences, variance, and correlation with functional assessments for ERP and QEEG measures collected at clinical and commercial trial sites with standardized instrumentation and methods, and analyzed through an automated data analysis pipeline. Methods: 81 HV and 80 SZ were tested at one of four study sites. Subjects were administered two ERP/EEG testing sessions on separate visits. Sessions included a mismatch negativity paradigm, a 40 Hz auditory steady-state response paradigm, an eyes-closed resting state EEG, and an active auditory oddball paradigm. SZ subjects were also tested on the Brief Assessment of Cognition (BAC), Positive and Negative Syndrome Scale (PANSS), and Virtual Reality Functional Capacity Assessment Tool (VRFCAT). Results: Standardized ERP/EEG instrumentation and methods ensured few test failures. The automated data analysis pipeline allowed for near real-time analysis with no human intervention. Test-retest reliability was fair-to-excellent for most of the outcome measures. SZ subjects showed significant deficits in ERP and QEEG measures consistent with published academic literature. A subset of ERP and QEEG measures correlated with functional assessments administered to the SZ subjects.


Read more here: Validation of a suite of ERP and QEEG Biomarkers 2023 Schiz Bull