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McIntyre RS, Alsuwaidan M, Baune BT, Berk M, Demyttenaere K, Goldberg JF, Gorwood P, Ho R, Kasper S, Kennedy SH, Ly-Uson J, Mansur RB, McAllister-Williams RH, Murrough JW, Nemeroff CB, Nierenberg AA, Rosenblat JD, Sanacora G, Schatzberg AF, Shelton R, Stahl SM, Trivedi MH, Vieta E, Vinberg M, Williams N, Young AH, Maj M. Treatment-resistant depression: definition, prevalence, detection, management, and investigational interventions. World Psychiatry 2023; 22:394-412. [PMID: 37713549 PMCID: PMC10503923 DOI: 10.1002/wps.21120] [Citation(s) in RCA: 71] [Impact Index Per Article: 71.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/17/2023] Open
Abstract
Treatment-resistant depression (TRD) is common and associated with multiple serious public health implications. A consensus definition of TRD with demonstrated predictive utility in terms of clinical decision-making and health outcomes does not currently exist. Instead, a plethora of definitions have been proposed, which vary significantly in their conceptual framework. The absence of a consensus definition hampers precise estimates of the prevalence of TRD, and also belies efforts to identify risk factors, prevention opportunities, and effective interventions. In addition, it results in heterogeneity in clinical practice decision-making, adversely affecting quality of care. The US Food and Drug Administration (FDA) and the European Medicines Agency (EMA) have adopted the most used definition of TRD (i.e., inadequate response to a minimum of two antidepressants despite adequacy of the treatment trial and adherence to treatment). It is currently estimated that at least 30% of persons with depression meet this definition. A significant percentage of persons with TRD are actually pseudo-resistant (e.g., due to inadequacy of treatment trials or non-adherence to treatment). Although multiple sociodemographic, clinical, treatment and contextual factors are known to negatively moderate response in persons with depression, very few factors are regarded as predictive of non-response across multiple modalities of treatment. Intravenous ketamine and intranasal esketamine (co-administered with an antidepressant) are established as efficacious in the management of TRD. Some second-generation antipsychotics (e.g., aripiprazole, brexpiprazole, cariprazine, quetiapine XR) are proven effective as adjunctive treatments to antidepressants in partial responders, but only the olanzapine-fluoxetine combination has been studied in FDA-defined TRD. Repetitive transcranial magnetic stimulation (TMS) is established as effective and FDA-approved for individuals with TRD, with accelerated theta-burst TMS also recently showing efficacy. Electroconvulsive therapy is regarded as an effective acute and maintenance intervention in TRD, with preliminary evidence suggesting non-inferiority to acute intravenous ketamine. Evidence for extending antidepressant trial, medication switching and combining antidepressants is mixed. Manual-based psychotherapies are not established as efficacious on their own in TRD, but offer significant symptomatic relief when added to conventional antidepressants. Digital therapeutics are under study and represent a potential future clinical vista in this population.
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Affiliation(s)
- Roger S McIntyre
- Brain and Cognition Discovery Foundation, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Mohammad Alsuwaidan
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Bernhard T Baune
- Department of Psychiatry, University of Münster, Münster, Germany
- Department of Psychiatry, University of Melbourne, Melbourne, VIC, Australia
| | - Michael Berk
- Department of Psychiatry, University of Melbourne, Melbourne, VIC, Australia
- Deakin University IMPACT Institute, Geelong, VIC, Australia
| | - Koen Demyttenaere
- Department of Psychiatry, Faculty of Medicine, KU Leuven, Leuven, Belgium
| | - Joseph F Goldberg
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Philip Gorwood
- Department of Psychiatry, Sainte-Anne Hospital, Paris, France
| | - Roger Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Institute for Health Innovation and Technology, National University of Singapore, Singapore
| | - Siegfried Kasper
- Department of Psychiatry and Psychotherapy and Center of Brain Research, Molecular Neuroscience Branch, Medical University of Vienna, Vienna, Austria
| | - Sidney H Kennedy
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Josefina Ly-Uson
- Department of Psychiatry and Behavioral Medicine, University of The Philippines College of Medicine, Manila, The Philippines
| | - Rodrigo B Mansur
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - R Hamish McAllister-Williams
- Northern Center for Mood Disorders, Translational and Clinical Research Institute, Newcastle University, and Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, Newcastle upon Tyne, UK
| | - James W Murrough
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Andrew A Nierenberg
- Dauten Family Center for Bipolar Treatment Innovation, Massachusetts General Hospital, Boston, MA, USA
| | - Joshua D Rosenblat
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Gerard Sanacora
- Department of Psychiatry, Yale University, New Haven, CT, USA
| | - Alan F Schatzberg
- Department of Psychiatry, Stanford University School of Medicine, Stanford, CA, USA
| | - Richard Shelton
- Department of Psychiatry, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Stephen M Stahl
- Department of Psychiatry, University of California, San Diego, CA, USA
| | - Madhukar H Trivedi
- Department of Psychiatry, University of Illinois Chicago, Chicago, IL, USA
| | - Eduard Vieta
- Department of Psychiatry and Psychology, Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Spain
| | - Maj Vinberg
- Mental Health Centre, Northern Zealand, Copenhagen University Hospital - Mental Health Services CPH, Copenhagen, Denmark
| | - Nolan Williams
- Department of Psychiatry, Stanford University School of Medicine, Stanford, CA, USA
| | - Allan H Young
- Department of Psychological Medicine, King's College London, London, UK
| | - Mario Maj
- Department of Psychiatry, University of Campania "Luigi Vanvitelli", Naples, Italy
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Degraff Z, Souza GS, Santos NA, Shoshina II, Felisberti FM, Fernandes TP, Sigurdsson G. Brain atrophy and cognitive decline in bipolar disorder: Influence of medication use, symptomatology and illness duration. J Psychiatr Res 2023; 163:421-429. [PMID: 37276646 DOI: 10.1016/j.jpsychires.2023.05.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/02/2023] [Accepted: 05/25/2023] [Indexed: 06/07/2023]
Abstract
Bipolar disorder (BPD) is a chronic condition characterized by recurrent episodes of mania and depression. To date, the association of biological and psychopathological processes in BPD has not been extensively studied on a cognitive and cortical basis at the same time. We investigated whether brain atrophy (in prefrontal, temporal and occipital cortices) was associated with cognitive, biological and clinical processes in patients with BPD and healthy controls (HCs). A total of 104 participants (56 with BPD) completed tasks that measured attention, memory, information processing speed, inhibitory control, visuospatial working memory and cognitive flexibility. In addition, structural brain scans were obtained using high-resolution MRI. Outcomes of the measurements were examined using robust multiple mediation analyses. BPD patients showed greater cortical atrophy across all regions of interest when compared to HCs, linked to cognitive decline. BPD patients had slower reaction times and markedly increased errors of commission on the tasks. The outcomes were significantly influenced by medication use, symptomatology and illness duration. The findings showcase the complexity of brain structures and networks as well as the physiological mechanisms underlying diverse BPD symptomatology and endophenotypes. These differences were pronounced in patients with BPD, motivating further investigations of pathophysiological mechanisms involved in brain atrophy and cognitive decline.
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Affiliation(s)
- Zeke Degraff
- Svenskagier Neurologie, Stockholm, Sweden; Institute of Neurology, Belgium.
| | | | | | | | | | - Thiago P Fernandes
- Federal University of Para, Para, Brazil; Federal University of Paraiba, Paraiba, Brazil
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