Cited by 521Treatment of Major DepressionAnxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesElectroconvulsive Therapy Studies

Clinical Factors Associated With Treatment Resistance in Major Depressive Disorder: Results From a European Multicenter Study

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Souery, Daniel, Oswald, Pierre, Massat, Isabelle, Bailer, Ursula, Bollen, Joseph, Demyttenaere, Koen, Kasper, Siegfried, Lecrubier, Yves +5 more·2007·The Journal of Clinical Psychiatry

Abstract

OBJECTIVES: Very few studies have investigated clinical features associated with treatment-resistant depression (TRD) defined as failure of at least 2 consecutive antidepressant trials. The primary objective of this multicenter study was to identify specific clinical and demographic factors associated with TRD in a large sample of patients with major depressive episodes that failed to reach response or remission after at least 2 consecutive adequate antidepressant treatments. METHOD: A total of 702 patients with DSM-IV major depressive disorder, recruited from January 2000 to February 2004, were included in the analysis. Among them, 346 patients were considered as nonresistant. The remaining 356 patients were considered as resistant, with a 17-item Hamilton Rating Scale for Depression score remaining greater than or equal to 17 after 2 consecutive adequate antidepressant trials. Cox regression models were used to examine the association between individual clinical variables and TRD. RESULTS: Among the clinical features investigated, 11 variables were found to be associated with TRD. We found anxiety comorbidity (p < .001, odds ratio [OR] = 2.6), comorbid panic disorder (p < .001, OR = 3.2) and social phobia (p = .008, OR = 2.1), personality disorder (p = .049, OR = 1.7), suicidal risk (p = .001, OR = 2.2), severity (p = .001, OR = 1.7), melancholia (p = .018, OR = 1.5), a number of hospitalizations > 1 (p = .003, OR = 1.6), recurrent episodes (p = .009, OR = 1.5), early age at onset (p = .009, OR = 2.0), and nonresponse to the first antidepressant received lifetime (p = .019, OR = 1.6) to be the factors associated with TRD. CONCLUSIONS: Our findings provide a set of 11 relevant clinical variables associated with treatment resistance in major depressive disorder that can be explored at the clinical level. The statistical model used in this analysis allowed for a hierarchy of these variables (based on the OR) showing that comorbid anxiety disorder is the most powerful clinical factor associated with TRD.

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  1. a Copyright Daniel Souery, M.D. early onset in bipolar disorder: data from the first 1000 participants in the Systematic Treatment Enhancement Program for Bipolar Disorder (STEP-BD). Biol Psychiatry 2004;55:875-881

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Authors
Souery, D., Oswald, P., Massat, I., Bailer, U., Bollen, J., Demyttenaere, K., Kasper, S., Lecrubier, Y., Montgomery, S., Serretti, A., Zohar, J., Mendlewicz, J., & Group for the Study of Resistant Depression (GSRD)
Affiliations
Université Libre de Bruxelles (BE)
Venue
The Journal of Clinical Psychiatry
Published
2007-07-15
Volume
68
Issue
07
Pages
1062-1070
ISSN
0160-6689 (ISSN-L)
OpenAlex
W1969010498
Cited by
521
References
22
Citations by year
2026: 14 · 2025: 23 · 2024: 26 · 2023: 30 · 2022: 26 · 2021: 54 · 2020: 35 · 2019: 46 · 2018: 31 · 2017: 22 · 2016: 23 · 2015: 25 · 2014: 27 · 2013: 29 · 2012: 21
FWCI
14.20
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • The Journal of Clinical Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Lirias (submittedVersion, other-oa)
  • Dépôt institutionnel de l'Université libre de Bruxelles (Université Libre de Bruxelles) (submittedVersion)
Funders
  • Bristol-Myers Squibb
  • Eli Lilly and Company
  • Pfizer
  • AstraZeneca
  • GlaxoSmithKline
  • Sanofi
  • Les Laboratories Pierre Fabre
  • Fonds De La Recherche Scientifique - FNRS
  • Servier
  • H. Lundbeck A/S
Topics
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Health Sciences › Medicine › Psychiatry and Mental health › Electroconvulsive Therapy Studies
Keywords
treatment-resistant depression, major depressive disorder, antidepressant non-response, anxiety comorbidity, panic disorder, social anxiety disorder, personality disorders, suicide risk, melancholia, depression severity, hospitalization, recurrent depression, age of onset, risk factors
MeSH terms
Adult, Aged, Antidepressive Agents, Mental Disorders, Major Depressive Disorder, Drug Resistance, Europe, Female, Follow-Up Studies, Hospitalization, Humans, Male, Middle Aged, Recurrence, Comorbidity, Treatment Failure, Age of Onset

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