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Title: Assessment of an In Silico Mechanistic Model for Proarrhythmia Risk Prediction Under the Ci PA Initiative

Abstract

The International Council on Harmonization (ICH) S7B and E14 regulatory guidelines are sensitive but not specific for predicting which drugs are pro‐arrhythmic. In response, the Comprehensive In Vitro Proarrhythmia Assay (Ci PA ) was proposed that integrates multi‐ion channel pharmacology data in vitro into a human cardiomyocyte model in silico for proarrhythmia risk assessment. Previously, we reported the model optimization and proarrhythmia metric selection based on Ci PA training drugs. In this study, we report the application of the prespecified model and metric to independent Ci PA validation drugs. Over two validation datasets, the Ci PA model performance meets all pre‐specified measures for ranking and classifying validation drugs, and outperforms alternatives, despite some in vitro data differences between the two datasets due to different experimental conditions and quality control procedures. This suggests that the current Ci PA model/metric may be fit for regulatory use, and standardization of experimental protocols and quality control criteria could increase the model prediction accuracy even further.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3];  [4];  [4];  [4];  [5];  [1]
  1. Division of Applied Regulatory Science Office of Clinical Pharmacology Office of Translational Sciences Center for Drug Evaluation and Research U.S. Food and Drug Administration Silver Spring Maryland USA
  2. Department of Computer Science Healthcare Informatics University of Oxford Oxford UK
  3. Centre for Mathematical Medicine &, Biology School of Mathematical Sciences University of Nottingham Nottingham UK
  4. Charles River Laboratories Wilmington Massachusetts USA
  5. CytoBioscience New Orleans Louisiana USA
Publication Date:
Research Org.:
Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC); Wellcome Trust; Engineering and Physical Sciences Research Council; U.S. Food and Drug Administration (FDA)
OSTI Identifier:
1493112
Alternate Identifier(s):
OSTI ID: 1511073; OSTI ID: 1904991
Grant/Contract Number:  
SC0014664; 101222/Z/13/Z; EP/G037280/1
Resource Type:
Published Article
Journal Name:
Clinical Pharmacology and Therapeutics
Additional Journal Information:
Journal Name: Clinical Pharmacology and Therapeutics Journal Volume: 105 Journal Issue: 2; Journal ID: ISSN 0009-9236
Publisher:
Wiley-Blackwell
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; pharmacology & pharmacy

Citation Formats

Li, Zhihua, Ridder, Bradley J., Han, Xiaomei, Wu, Wendy W., Sheng, Jiansong, Tran, Phu N., Wu, Min, Randolph, Aaron, Johnstone, Ross H., Mirams, Gary R., Kuryshev, Yuri, Kramer, James, Wu, Caiyun, Crumb, Jr., William J., and Strauss, David G. Assessment of an In Silico Mechanistic Model for Proarrhythmia Risk Prediction Under the Ci PA Initiative. United States: N. p., 2018. Web. doi:10.1002/cpt.1184.
Li, Zhihua, Ridder, Bradley J., Han, Xiaomei, Wu, Wendy W., Sheng, Jiansong, Tran, Phu N., Wu, Min, Randolph, Aaron, Johnstone, Ross H., Mirams, Gary R., Kuryshev, Yuri, Kramer, James, Wu, Caiyun, Crumb, Jr., William J., & Strauss, David G. Assessment of an In Silico Mechanistic Model for Proarrhythmia Risk Prediction Under the Ci PA Initiative. United States. https://doi.org/10.1002/cpt.1184
Li, Zhihua, Ridder, Bradley J., Han, Xiaomei, Wu, Wendy W., Sheng, Jiansong, Tran, Phu N., Wu, Min, Randolph, Aaron, Johnstone, Ross H., Mirams, Gary R., Kuryshev, Yuri, Kramer, James, Wu, Caiyun, Crumb, Jr., William J., and Strauss, David G. Mon . "Assessment of an In Silico Mechanistic Model for Proarrhythmia Risk Prediction Under the Ci PA Initiative". United States. https://doi.org/10.1002/cpt.1184.
@article{osti_1493112,
title = {Assessment of an In Silico Mechanistic Model for Proarrhythmia Risk Prediction Under the Ci PA Initiative},
author = {Li, Zhihua and Ridder, Bradley J. and Han, Xiaomei and Wu, Wendy W. and Sheng, Jiansong and Tran, Phu N. and Wu, Min and Randolph, Aaron and Johnstone, Ross H. and Mirams, Gary R. and Kuryshev, Yuri and Kramer, James and Wu, Caiyun and Crumb, Jr., William J. and Strauss, David G.},
abstractNote = {The International Council on Harmonization (ICH) S7B and E14 regulatory guidelines are sensitive but not specific for predicting which drugs are pro‐arrhythmic. In response, the Comprehensive In Vitro Proarrhythmia Assay (Ci PA ) was proposed that integrates multi‐ion channel pharmacology data in vitro into a human cardiomyocyte model in silico for proarrhythmia risk assessment. Previously, we reported the model optimization and proarrhythmia metric selection based on Ci PA training drugs. In this study, we report the application of the prespecified model and metric to independent Ci PA validation drugs. Over two validation datasets, the Ci PA model performance meets all pre‐specified measures for ranking and classifying validation drugs, and outperforms alternatives, despite some in vitro data differences between the two datasets due to different experimental conditions and quality control procedures. This suggests that the current Ci PA model/metric may be fit for regulatory use, and standardization of experimental protocols and quality control criteria could increase the model prediction accuracy even further.},
doi = {10.1002/cpt.1184},
journal = {Clinical Pharmacology and Therapeutics},
number = 2,
volume = 105,
place = {United States},
year = {Mon Aug 27 00:00:00 EDT 2018},
month = {Mon Aug 27 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/cpt.1184

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