RNA editing-based biomarker blood test for the diagnosis of bipolar disorder: protocol of the EDIT-B study

Abstract Introduction Misdiagnosis of bipolar disorder (BD) can lead to ineffective treatment, increased risk of manic episodes, and increased severity. Objective diagnostic tests or precise tools to diagnose BD and distinguish it from major depressive disorder (MDD) in depressed patients are lackin...

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Main Authors: Andrea Miranda-Mendizabal, Diana Vetter, Juan Zambrano, Jeff Zarp, Victor Chavarría, Anna Giménez-Palomo, Meritxell Gonzalez-Campos, Marc Valenti, Lara Walczer Baldinazzo, Sara Siddi, Maurizio Ferrari, Dinah Weissmann, Chantal Henry, Josep Maria Haro, Lars Vedel Kessing, Eduard Vieta
Format: Article
Language:English
Published: BMC 2025-02-01
Series:Annals of General Psychiatry
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Online Access:https://doi.org/10.1186/s12991-024-00544-8
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author Andrea Miranda-Mendizabal
Diana Vetter
Juan Zambrano
Jeff Zarp
Victor Chavarría
Anna Giménez-Palomo
Meritxell Gonzalez-Campos
Marc Valenti
Lara Walczer Baldinazzo
Sara Siddi
Maurizio Ferrari
Dinah Weissmann
Chantal Henry
Josep Maria Haro
Lars Vedel Kessing
Eduard Vieta
author_facet Andrea Miranda-Mendizabal
Diana Vetter
Juan Zambrano
Jeff Zarp
Victor Chavarría
Anna Giménez-Palomo
Meritxell Gonzalez-Campos
Marc Valenti
Lara Walczer Baldinazzo
Sara Siddi
Maurizio Ferrari
Dinah Weissmann
Chantal Henry
Josep Maria Haro
Lars Vedel Kessing
Eduard Vieta
author_sort Andrea Miranda-Mendizabal
collection DOAJ
description Abstract Introduction Misdiagnosis of bipolar disorder (BD) can lead to ineffective treatment, increased risk of manic episodes, and increased severity. Objective diagnostic tests or precise tools to diagnose BD and distinguish it from major depressive disorder (MDD) in depressed patients are lacking. Aim To assess the external diagnostic validity of a blood-based test using an RNA epigenetic signature for the differential diagnosis of BD versus MDD in patients with depression. Methods and analysis Multicentre cross-sectional study including an adult sample of inpatients or outpatients diagnosed with BD or MDD, currently treated for a major depressive episode. A structured diagnostic interview based on validated scales will be conducted. Sociodemographic variables, clinical history, toxic consumption, current treatment and quality of life will be assessed. Blood samples will be obtained and stored at −80 °C until RNA sequencing analysis. The EDIT-B is a blood-based test that combines RNA editing biomarkers and individual data (e.g., age, sex, and tobacco consumption). The clinical validation performance of the EDIT-B will be evaluated using the area under the curve, sensitivity, specificity, positive and negative predictive values, and likelihood ratios. Ethics and dissemination The principles of the Declaration of Helsinki 2013, precision psychiatry research and good clinical practice will be followed. The Research Ethics Committees of the participating centres approved the study. Participants will receive an information sheet and must sign the informed consent before the interview. Participants’ data will be pseudonymized at the research sites. Any publication will use fully anonymized data. Publications with the final study results will be disseminated in international peer-reviewed journals and presented at international conferences. Study registration: This study has been registered on clinicaltrials.gov (NCT05603819). Registration date: 28-10-2022.
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spelling doaj-art-7ff5ebefd1574c8bbb8ff765030c5e692025-02-09T12:48:55ZengBMCAnnals of General Psychiatry1744-859X2025-02-0124111310.1186/s12991-024-00544-8RNA editing-based biomarker blood test for the diagnosis of bipolar disorder: protocol of the EDIT-B studyAndrea Miranda-Mendizabal0Diana Vetter1Juan Zambrano2Jeff Zarp3Victor Chavarría4Anna Giménez-Palomo5Meritxell Gonzalez-Campos6Marc Valenti7Lara Walczer Baldinazzo8Sara Siddi9Maurizio Ferrari10Dinah Weissmann11Chantal Henry12Josep Maria Haro13Lars Vedel Kessing14Eduard Vieta15Impact and Prevention of Mental Disorders Research Group, Sant Joan de Déu Research InstitutALCEDIAG/Sys2Diag, CNRS UMR 9005GHU Psychiatrie & NeurosciencesCopenhagen Affective Disorder Research Centre (CADIC), Psychiatric Centre CopenhagenImpact and Prevention of Mental Disorders Research Group, Sant Joan de Déu Research InstitutMental Health Networking Biomedical Research Centre (CIBERSAM)Mental Health Networking Biomedical Research Centre (CIBERSAM)Mental Health Networking Biomedical Research Centre (CIBERSAM)Genetic Unit, SYNLAB ItaliaImpact and Prevention of Mental Disorders Research Group, Sant Joan de Déu Research InstitutIstituto di Ricovero e Cura a Carattere Scientifico (IRCCS), SYNLAB SDNALCEDIAG/Sys2Diag, CNRS UMR 9005GHU Psychiatrie & NeurosciencesImpact and Prevention of Mental Disorders Research Group, Sant Joan de Déu Research InstitutCopenhagen Affective Disorder Research Centre (CADIC), Psychiatric Centre CopenhagenMental Health Networking Biomedical Research Centre (CIBERSAM)Abstract Introduction Misdiagnosis of bipolar disorder (BD) can lead to ineffective treatment, increased risk of manic episodes, and increased severity. Objective diagnostic tests or precise tools to diagnose BD and distinguish it from major depressive disorder (MDD) in depressed patients are lacking. Aim To assess the external diagnostic validity of a blood-based test using an RNA epigenetic signature for the differential diagnosis of BD versus MDD in patients with depression. Methods and analysis Multicentre cross-sectional study including an adult sample of inpatients or outpatients diagnosed with BD or MDD, currently treated for a major depressive episode. A structured diagnostic interview based on validated scales will be conducted. Sociodemographic variables, clinical history, toxic consumption, current treatment and quality of life will be assessed. Blood samples will be obtained and stored at −80 °C until RNA sequencing analysis. The EDIT-B is a blood-based test that combines RNA editing biomarkers and individual data (e.g., age, sex, and tobacco consumption). The clinical validation performance of the EDIT-B will be evaluated using the area under the curve, sensitivity, specificity, positive and negative predictive values, and likelihood ratios. Ethics and dissemination The principles of the Declaration of Helsinki 2013, precision psychiatry research and good clinical practice will be followed. The Research Ethics Committees of the participating centres approved the study. Participants will receive an information sheet and must sign the informed consent before the interview. Participants’ data will be pseudonymized at the research sites. Any publication will use fully anonymized data. Publications with the final study results will be disseminated in international peer-reviewed journals and presented at international conferences. Study registration: This study has been registered on clinicaltrials.gov (NCT05603819). Registration date: 28-10-2022.https://doi.org/10.1186/s12991-024-00544-8Bipolar disorderRNA editingEpigeneticsDepression & mood disordersDiagnosisMachine learning
spellingShingle Andrea Miranda-Mendizabal
Diana Vetter
Juan Zambrano
Jeff Zarp
Victor Chavarría
Anna Giménez-Palomo
Meritxell Gonzalez-Campos
Marc Valenti
Lara Walczer Baldinazzo
Sara Siddi
Maurizio Ferrari
Dinah Weissmann
Chantal Henry
Josep Maria Haro
Lars Vedel Kessing
Eduard Vieta
RNA editing-based biomarker blood test for the diagnosis of bipolar disorder: protocol of the EDIT-B study
Annals of General Psychiatry
Bipolar disorder
RNA editing
Epigenetics
Depression & mood disorders
Diagnosis
Machine learning
title RNA editing-based biomarker blood test for the diagnosis of bipolar disorder: protocol of the EDIT-B study
title_full RNA editing-based biomarker blood test for the diagnosis of bipolar disorder: protocol of the EDIT-B study
title_fullStr RNA editing-based biomarker blood test for the diagnosis of bipolar disorder: protocol of the EDIT-B study
title_full_unstemmed RNA editing-based biomarker blood test for the diagnosis of bipolar disorder: protocol of the EDIT-B study
title_short RNA editing-based biomarker blood test for the diagnosis of bipolar disorder: protocol of the EDIT-B study
title_sort rna editing based biomarker blood test for the diagnosis of bipolar disorder protocol of the edit b study
topic Bipolar disorder
RNA editing
Epigenetics
Depression & mood disorders
Diagnosis
Machine learning
url https://doi.org/10.1186/s12991-024-00544-8
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