Pharmacist-guided pre-emptive pharmacogenetic testing in antidepressant therapy (PrePGx): study protocol for an open-label, randomized controlled trial

Abstract Background It is known that only 50% of patients diagnosed with major depressive disorders (MDD) respond to the first-line antidepressant treatment. Accordingly, there is a need to improve response rates to reduce healthcare costs and patient suffering. One approach to increase rates of tre...

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Main Authors: Céline K. Stäuble, Markus L. Lampert, Samuel Allemann, Martin Hatzinger, Kurt E. Hersberger, Henriette E. Meyer zu Schwabedissen, Christian Imboden, Thorsten Mikoteit
Format: Article
Language:English
Published: BMC 2021-12-01
Series:Trials
Subjects:
Online Access:https://doi.org/10.1186/s13063-021-05724-5
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author Céline K. Stäuble
Markus L. Lampert
Samuel Allemann
Martin Hatzinger
Kurt E. Hersberger
Henriette E. Meyer zu Schwabedissen
Christian Imboden
Thorsten Mikoteit
author_facet Céline K. Stäuble
Markus L. Lampert
Samuel Allemann
Martin Hatzinger
Kurt E. Hersberger
Henriette E. Meyer zu Schwabedissen
Christian Imboden
Thorsten Mikoteit
author_sort Céline K. Stäuble
collection DOAJ
description Abstract Background It is known that only 50% of patients diagnosed with major depressive disorders (MDD) respond to the first-line antidepressant treatment. Accordingly, there is a need to improve response rates to reduce healthcare costs and patient suffering. One approach to increase rates of treatment response might be the integration of pharmacogenetic (PGx) testing to stratify antidepressant drug selection. The goal of PGx assessments is to identify patients who have an increased risk to experience adverse drug reactions or non-response to specific drugs. Especially for antidepressants, there is compiling evidence on PGx influencing drug exposure as well as response. Methods This study is an open-label, randomized controlled trial conducted in two study centers in Switzerland: (1) the Psychiatric Clinic of Solothurn and (2) the Private Clinic Wyss in Münchenbuchsee. Adult inpatients diagnosed with a unipolar moderate or severe depressive episode are recruited at clinic admission and are included in the study. If the adjustment to a new antidepressant pharmacotherapy is necessary, the participants are randomized to either Arm A (intervention group) or Arm B (control group). If no new antidepressant pharmacotherapy is introduced the participants will be followed up in an observational arm. The intervention is the service of pharmacist-guided pre-emptive PGx testing to support clinical decision making on antidepressant selection and dosing. As a comparison, in the control group, the antidepressant pharmacotherapy is selected by the treating physician according to current treatment guidelines (standard of care) without the knowledge of PGx test results and support of clinical pharmacists. The primary outcome of this study compares the response rates under antidepressant treatment after 4 weeks between intervention and control arm. Discussion The findings from this clinical trial are expected to have a direct impact on inter-professional collaborations for the handling and use of PGx data in psychiatric practice. Trial registration ClinicalTrials.gov NCT04507555 . Registered on August 11, 2020. Swiss National Clinical Trials Portal SNCTP000004015 . Registered August 18, 2020.
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spelling doaj.art-69ee103aed3d4f669c669ca859af720a2022-12-21T19:21:16ZengBMCTrials1745-62152021-12-0122111110.1186/s13063-021-05724-5Pharmacist-guided pre-emptive pharmacogenetic testing in antidepressant therapy (PrePGx): study protocol for an open-label, randomized controlled trialCéline K. Stäuble0Markus L. Lampert1Samuel Allemann2Martin Hatzinger3Kurt E. Hersberger4Henriette E. Meyer zu Schwabedissen5Christian Imboden6Thorsten Mikoteit7Biopharmacy, Department of Pharmaceutical Sciences, University of BaselPharmaceutical Care, Department of Pharmaceutical Sciences, University of BaselPharmaceutical Care, Department of Pharmaceutical Sciences, University of BaselPsychiatric Services Solothurn, Solothurner Spitäler AG and Faculty of Medicine, University of BaselPharmaceutical Care, Department of Pharmaceutical Sciences, University of BaselBiopharmacy, Department of Pharmaceutical Sciences, University of BaselPrivate Clinic WyssPsychiatric Services Solothurn, Solothurner Spitäler AG and Faculty of Medicine, University of BaselAbstract Background It is known that only 50% of patients diagnosed with major depressive disorders (MDD) respond to the first-line antidepressant treatment. Accordingly, there is a need to improve response rates to reduce healthcare costs and patient suffering. One approach to increase rates of treatment response might be the integration of pharmacogenetic (PGx) testing to stratify antidepressant drug selection. The goal of PGx assessments is to identify patients who have an increased risk to experience adverse drug reactions or non-response to specific drugs. Especially for antidepressants, there is compiling evidence on PGx influencing drug exposure as well as response. Methods This study is an open-label, randomized controlled trial conducted in two study centers in Switzerland: (1) the Psychiatric Clinic of Solothurn and (2) the Private Clinic Wyss in Münchenbuchsee. Adult inpatients diagnosed with a unipolar moderate or severe depressive episode are recruited at clinic admission and are included in the study. If the adjustment to a new antidepressant pharmacotherapy is necessary, the participants are randomized to either Arm A (intervention group) or Arm B (control group). If no new antidepressant pharmacotherapy is introduced the participants will be followed up in an observational arm. The intervention is the service of pharmacist-guided pre-emptive PGx testing to support clinical decision making on antidepressant selection and dosing. As a comparison, in the control group, the antidepressant pharmacotherapy is selected by the treating physician according to current treatment guidelines (standard of care) without the knowledge of PGx test results and support of clinical pharmacists. The primary outcome of this study compares the response rates under antidepressant treatment after 4 weeks between intervention and control arm. Discussion The findings from this clinical trial are expected to have a direct impact on inter-professional collaborations for the handling and use of PGx data in psychiatric practice. Trial registration ClinicalTrials.gov NCT04507555 . Registered on August 11, 2020. Swiss National Clinical Trials Portal SNCTP000004015 . Registered August 18, 2020.https://doi.org/10.1186/s13063-021-05724-5PharmacogenomicsDepressionAntidepressantPharmaceutical carePsychiatry
spellingShingle Céline K. Stäuble
Markus L. Lampert
Samuel Allemann
Martin Hatzinger
Kurt E. Hersberger
Henriette E. Meyer zu Schwabedissen
Christian Imboden
Thorsten Mikoteit
Pharmacist-guided pre-emptive pharmacogenetic testing in antidepressant therapy (PrePGx): study protocol for an open-label, randomized controlled trial
Trials
Pharmacogenomics
Depression
Antidepressant
Pharmaceutical care
Psychiatry
title Pharmacist-guided pre-emptive pharmacogenetic testing in antidepressant therapy (PrePGx): study protocol for an open-label, randomized controlled trial
title_full Pharmacist-guided pre-emptive pharmacogenetic testing in antidepressant therapy (PrePGx): study protocol for an open-label, randomized controlled trial
title_fullStr Pharmacist-guided pre-emptive pharmacogenetic testing in antidepressant therapy (PrePGx): study protocol for an open-label, randomized controlled trial
title_full_unstemmed Pharmacist-guided pre-emptive pharmacogenetic testing in antidepressant therapy (PrePGx): study protocol for an open-label, randomized controlled trial
title_short Pharmacist-guided pre-emptive pharmacogenetic testing in antidepressant therapy (PrePGx): study protocol for an open-label, randomized controlled trial
title_sort pharmacist guided pre emptive pharmacogenetic testing in antidepressant therapy prepgx study protocol for an open label randomized controlled trial
topic Pharmacogenomics
Depression
Antidepressant
Pharmaceutical care
Psychiatry
url https://doi.org/10.1186/s13063-021-05724-5
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