The Personalized Advantage Index: translating research on prediction into individualized treatment recommendations. A demonstration.

Advances in personalized medicine require the identification of variables that predict differential response to treatments as well as the development and refinement of methods to transform predictive information into actionable recommendations.To illustrate and test a new method for integrating pred...

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Main Authors: Robert J DeRubeis, Zachary D Cohen, Nicholas R Forand, Jay C Fournier, Lois A Gelfand, Lorenzo Lorenzo-Luaces
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3885521?pdf=render
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author Robert J DeRubeis
Zachary D Cohen
Nicholas R Forand
Jay C Fournier
Lois A Gelfand
Lorenzo Lorenzo-Luaces
author_facet Robert J DeRubeis
Zachary D Cohen
Nicholas R Forand
Jay C Fournier
Lois A Gelfand
Lorenzo Lorenzo-Luaces
author_sort Robert J DeRubeis
collection DOAJ
description Advances in personalized medicine require the identification of variables that predict differential response to treatments as well as the development and refinement of methods to transform predictive information into actionable recommendations.To illustrate and test a new method for integrating predictive information to aid in treatment selection, using data from a randomized treatment comparison.Data from a trial of antidepressant medications (N = 104) versus cognitive behavioral therapy (N = 50) for Major Depressive Disorder were used to produce predictions of post-treatment scores on the Hamilton Rating Scale for Depression (HRSD) in each of the two treatments for each of the 154 patients. The patient's own data were not used in the models that yielded these predictions. Five pre-randomization variables that predicted differential response (marital status, employment status, life events, comorbid personality disorder, and prior medication trials) were included in regression models, permitting the calculation of each patient's Personalized Advantage Index (PAI), in HRSD units.For 60% of the sample a clinically meaningful advantage (PAI≥3) was predicted for one of the treatments, relative to the other. When these patients were divided into those randomly assigned to their "Optimal" treatment versus those assigned to their "Non-optimal" treatment, outcomes in the former group were superior (d = 0.58, 95% CI .17-1.01).This approach to treatment selection, implemented in the context of two equally effective treatments, yielded effects that, if obtained prospectively, would rival those routinely observed in comparisons of active versus control treatments.
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spelling doaj.art-d0075f70facb4b68b38a3ab829022d9c2022-12-22T03:49:17ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0191e8387510.1371/journal.pone.0083875The Personalized Advantage Index: translating research on prediction into individualized treatment recommendations. A demonstration.Robert J DeRubeisZachary D CohenNicholas R ForandJay C FournierLois A GelfandLorenzo Lorenzo-LuacesAdvances in personalized medicine require the identification of variables that predict differential response to treatments as well as the development and refinement of methods to transform predictive information into actionable recommendations.To illustrate and test a new method for integrating predictive information to aid in treatment selection, using data from a randomized treatment comparison.Data from a trial of antidepressant medications (N = 104) versus cognitive behavioral therapy (N = 50) for Major Depressive Disorder were used to produce predictions of post-treatment scores on the Hamilton Rating Scale for Depression (HRSD) in each of the two treatments for each of the 154 patients. The patient's own data were not used in the models that yielded these predictions. Five pre-randomization variables that predicted differential response (marital status, employment status, life events, comorbid personality disorder, and prior medication trials) were included in regression models, permitting the calculation of each patient's Personalized Advantage Index (PAI), in HRSD units.For 60% of the sample a clinically meaningful advantage (PAI≥3) was predicted for one of the treatments, relative to the other. When these patients were divided into those randomly assigned to their "Optimal" treatment versus those assigned to their "Non-optimal" treatment, outcomes in the former group were superior (d = 0.58, 95% CI .17-1.01).This approach to treatment selection, implemented in the context of two equally effective treatments, yielded effects that, if obtained prospectively, would rival those routinely observed in comparisons of active versus control treatments.http://europepmc.org/articles/PMC3885521?pdf=render
spellingShingle Robert J DeRubeis
Zachary D Cohen
Nicholas R Forand
Jay C Fournier
Lois A Gelfand
Lorenzo Lorenzo-Luaces
The Personalized Advantage Index: translating research on prediction into individualized treatment recommendations. A demonstration.
PLoS ONE
title The Personalized Advantage Index: translating research on prediction into individualized treatment recommendations. A demonstration.
title_full The Personalized Advantage Index: translating research on prediction into individualized treatment recommendations. A demonstration.
title_fullStr The Personalized Advantage Index: translating research on prediction into individualized treatment recommendations. A demonstration.
title_full_unstemmed The Personalized Advantage Index: translating research on prediction into individualized treatment recommendations. A demonstration.
title_short The Personalized Advantage Index: translating research on prediction into individualized treatment recommendations. A demonstration.
title_sort personalized advantage index translating research on prediction into individualized treatment recommendations a demonstration
url http://europepmc.org/articles/PMC3885521?pdf=render
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