Pharmacogenetically Guided Escitalopram Treatment for Pediatric Anxiety Disorders: Protocol for a Double-Blind Randomized Trial

Current pharmacologic treatments for pediatric anxiety disorders (e.g., selective serotonin reuptake inhibitors (SSRIs)) frequently use “one size fits all” dosing strategies based on average responses in clinical trials. However, for some SSRIs, including escitalopram, variation in CYP2C19 activity...

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Autores principales: Jeffrey R. Strawn, Ethan A. Poweleit, Jeffrey A. Mills, Heidi K. Schroeder, Zoe A. Neptune, Ashley M. Specht, Jenni E. Farrow, Xue Zhang, Lisa J. Martin, Laura B. Ramsey
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Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:ffc9f63cbda640d6b0e82fab50b6edf42021-11-25T18:07:53ZPharmacogenetically Guided Escitalopram Treatment for Pediatric Anxiety Disorders: Protocol for a Double-Blind Randomized Trial10.3390/jpm111111882075-4426https://doaj.org/article/ffc9f63cbda640d6b0e82fab50b6edf42021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4426/11/11/1188https://doaj.org/toc/2075-4426Current pharmacologic treatments for pediatric anxiety disorders (e.g., selective serotonin reuptake inhibitors (SSRIs)) frequently use “one size fits all” dosing strategies based on average responses in clinical trials. However, for some SSRIs, including escitalopram, variation in CYP2C19 activity produces substantial variation in medication exposure (i.e., blood medication concentrations). This raises an important question: would refining current SSRI dosing strategies based on CYP2C19 phenotypes increase response and reduce side effect burden? To answer this question, we designed a randomized, double-blind trial of adolescents 12–17 years of age with generalized, separation, and/or social anxiety disorders (N = 132). Patients are randomized (1:1) to standard escitalopram dosing or dosing based on validated CYP2C19 phenotypes for escitalopram metabolism. Using this approach, we will determine whether pharmacogenetically-guided treatment—compared to standard dosing—produces faster and greater reduction in anxiety symptoms (i.e., response) and improves tolerability (e.g., decreased risk of treatment-related activation and weight gain). Secondarily, we will examine pharmacodynamic variants associated with treatment outcomes, thus enhancing clinicians’ ability to predict response and tolerability. Ultimately, developing a strategy to optimize dosing for individual patients could accelerate response while decreasing side effects—an immediate benefit to patients and their families. ClinicalTrials.gov Identifier: NCT04623099.Jeffrey R. StrawnEthan A. PoweleitJeffrey A. MillsHeidi K. SchroederZoe A. NeptuneAshley M. SpechtJenni E. FarrowXue ZhangLisa J. MartinLaura B. RamseyMDPI AGarticleselective serotonin reuptake inhibitor (SSRI)anxiety disordersgeneralized anxiety disorder (GAD)pharmacogeneticCYP2C19pharmacokineticMedicineRENJournal of Personalized Medicine, Vol 11, Iss 1188, p 1188 (2021)
institution DOAJ
collection DOAJ
language EN
topic selective serotonin reuptake inhibitor (SSRI)
anxiety disorders
generalized anxiety disorder (GAD)
pharmacogenetic
CYP2C19
pharmacokinetic
Medicine
R
spellingShingle selective serotonin reuptake inhibitor (SSRI)
anxiety disorders
generalized anxiety disorder (GAD)
pharmacogenetic
CYP2C19
pharmacokinetic
Medicine
R
Jeffrey R. Strawn
Ethan A. Poweleit
Jeffrey A. Mills
Heidi K. Schroeder
Zoe A. Neptune
Ashley M. Specht
Jenni E. Farrow
Xue Zhang
Lisa J. Martin
Laura B. Ramsey
Pharmacogenetically Guided Escitalopram Treatment for Pediatric Anxiety Disorders: Protocol for a Double-Blind Randomized Trial
description Current pharmacologic treatments for pediatric anxiety disorders (e.g., selective serotonin reuptake inhibitors (SSRIs)) frequently use “one size fits all” dosing strategies based on average responses in clinical trials. However, for some SSRIs, including escitalopram, variation in CYP2C19 activity produces substantial variation in medication exposure (i.e., blood medication concentrations). This raises an important question: would refining current SSRI dosing strategies based on CYP2C19 phenotypes increase response and reduce side effect burden? To answer this question, we designed a randomized, double-blind trial of adolescents 12–17 years of age with generalized, separation, and/or social anxiety disorders (N = 132). Patients are randomized (1:1) to standard escitalopram dosing or dosing based on validated CYP2C19 phenotypes for escitalopram metabolism. Using this approach, we will determine whether pharmacogenetically-guided treatment—compared to standard dosing—produces faster and greater reduction in anxiety symptoms (i.e., response) and improves tolerability (e.g., decreased risk of treatment-related activation and weight gain). Secondarily, we will examine pharmacodynamic variants associated with treatment outcomes, thus enhancing clinicians’ ability to predict response and tolerability. Ultimately, developing a strategy to optimize dosing for individual patients could accelerate response while decreasing side effects—an immediate benefit to patients and their families. ClinicalTrials.gov Identifier: NCT04623099.
format article
author Jeffrey R. Strawn
Ethan A. Poweleit
Jeffrey A. Mills
Heidi K. Schroeder
Zoe A. Neptune
Ashley M. Specht
Jenni E. Farrow
Xue Zhang
Lisa J. Martin
Laura B. Ramsey
author_facet Jeffrey R. Strawn
Ethan A. Poweleit
Jeffrey A. Mills
Heidi K. Schroeder
Zoe A. Neptune
Ashley M. Specht
Jenni E. Farrow
Xue Zhang
Lisa J. Martin
Laura B. Ramsey
author_sort Jeffrey R. Strawn
title Pharmacogenetically Guided Escitalopram Treatment for Pediatric Anxiety Disorders: Protocol for a Double-Blind Randomized Trial
title_short Pharmacogenetically Guided Escitalopram Treatment for Pediatric Anxiety Disorders: Protocol for a Double-Blind Randomized Trial
title_full Pharmacogenetically Guided Escitalopram Treatment for Pediatric Anxiety Disorders: Protocol for a Double-Blind Randomized Trial
title_fullStr Pharmacogenetically Guided Escitalopram Treatment for Pediatric Anxiety Disorders: Protocol for a Double-Blind Randomized Trial
title_full_unstemmed Pharmacogenetically Guided Escitalopram Treatment for Pediatric Anxiety Disorders: Protocol for a Double-Blind Randomized Trial
title_sort pharmacogenetically guided escitalopram treatment for pediatric anxiety disorders: protocol for a double-blind randomized trial
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/ffc9f63cbda640d6b0e82fab50b6edf4
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