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Jellinger KA. Pathomechanisms of behavioral abnormalities in Huntington disease: an update. J Neural Transm (Vienna) 2024; 131:999-1012. [PMID: 38874766 DOI: 10.1007/s00702-024-02794-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 06/05/2024] [Indexed: 06/15/2024]
Abstract
Huntington disease (HD), a devastating autosomal-dominant neurodegenerative disease caused by an expanded CAG trinucleotide repeat, is clinically characterized by a triad of symptoms including involuntary motions, behavior problems and cognitive deficits. Behavioral symptoms with anxiety, irritability, obsessive-compulsive behaviors, apathy and other neuropsychiatric symptoms, occurring in over 50% of HD patients are important features of this disease and contribute to impairment of quality of life, but their pathophysiology is poorly understood. Behavior problems, more frequent than depression, can be manifest before obvious motor symptoms and occur across all HD stages, usually correlated with duration of illness. While specific neuropathological data are missing, the relations between gene expression and behavior have been elucidated in transgenic models of HD. Disruption of interneuronal communications, with involvement of prefronto-striato-thalamic networks and hippocampal dysfunctions produce deficits in multiple behavioral domains. These changes that have been confirmed by multistructural neuroimaging studies are due to a causal cascade linking molecular pathologies (glutamate-mediated excitotoxicity, mitochondrial dysfunctions inducing multiple biochemical and structural alterations) and deficits in multiple behavioral domains. The disruption of large-scale connectivities may explain the variability of behavior profiles and is useful in understanding the biological backgrounds of functional decline in HD. Such findings offer new avenues for targeted treatments in terms of minimizing neurobehavioral impairment in HD.
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Affiliation(s)
- Kurt A Jellinger
- Institute of Clinical Neurobiology, Alberichgasse 5/13, Vienna, A-1150, Austria.
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Vaccarino AL, Kalali AH, Blier P, Gilbert Evans S, Engelhardt N, Foster JA, Frey BN, Greist JH, Kobak KA, Lam RW, MacQueen G, Milev R, Müller DJ, Parikh SV, Placenza FM, Rizvi SJ, Rotzinger S, Sheehan DV, Sills T, Soares CN, Turecki G, Uher R, Williams JBW, Kennedy SH, Evans KR. THE DEPRESSION INVENTORY DEVELOPMENT SCALE: Assessment of Psychometric Properties Using Classical and Modern Measurement Theory in a CAN-BIND Trial. INNOVATIONS IN CLINICAL NEUROSCIENCE 2020; 17:30-40. [PMID: 33520402 PMCID: PMC7839654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Objective: The goal of the Depression Inventory Development (DID) project is to develop a comprehensive and psychometrically sound rating scale for major depressive disorder (MDD) that reflects current diagnostic criteria and conceptualizations of depression. We report here the evaluation of the current DID item bank using Classical Test Theory (CTT), Item Response Theory (IRT) and Rasch Measurement Theory (RMT). Methods: The present study was part of a larger multisite, open-label study conducted by the Canadian Biomarker Integration Network in Depression (ClinicalTrials.gov: NCT01655706). Trained raters administered the 32 DID items at each of two visits (MDD: baseline, n=211 and Week 8, n=177; healthy participants: baseline, n=112 and Week 8, n=104). The DID's "grid" structure operationalizes intensity and frequency of each item, with clear symptom definitions and a structured interview guide, with the current iteration assessing symptoms related to anhedonia, cognition, fatigue, general malaise, motivation, anxiety, negative thinking, pain, and appetite. Participants were also administered the Montgomery- Åsberg Depression Rating Scale (MADRS) and Quick Inventory of Depressive Symptomatology-Self-Report (QIDS-SR) that allowed DID items to be evaluated against existing "benchmark" items. CTT was used to assess data quality/reliability (i.e., missing data, skewness, scoring frequency, internal consistency), IRT to assess individual item performance by modelling an item's ability to discriminate levels of depressive severity (as assessed by the MADRS), and RMT to assess how the items perform together as a scale to capture a range of depressive severity (item targeting). These analyses together provided empirical evidence to base decisions on which DID items to remove, modify, or advance. Results: Of the 32 DID items evaluated, eight items were identified by CTT as problematic, displaying low variability in the range of responses, floor effects, and/or skewness; and four items were identified by IRT to show poor discriminative properties that would limit their clinical utility. Five additional items were deemed to be redundant. The remaining 15 DID items all fit the Rasch model, with person and item difficulty estimates indicating satisfactory item targeting, with lower precision in participants with mild levels of depression. These 15 DID items also showed good internal consistency (alpha=0.95 and inter-item correlations ranging from r=0.49 to r=0.84) and all items were sensitive to change following antidepressant treatment (baseline vs. Week 8). RMT revealed problematic item targeting for the MADRS and QIDSSR, including an absence of MADRS items targeting participants with mild/moderate depression and an absence of QIDS-SR items targeting participants with mild or severe depression. Conclusion: The present study applied CTT, IRT, and RMT to assess the measurement properties of the DID items and identify those that should be advanced, modified, or removed. Of the 32 items evaluated, 15 items showed good measurement properties. These items (along with previously evaluated items) will provide the basis for validation of a penultimate DID scale assessing anhedonia, cognitive slowing, concentration, executive function, recent memory, drive, emotional fatigue, guilt, self-esteem, hopelessness, tension, rumination, irritability, reduced appetite, insomnia, sadness, worry, suicidality, and depressed mood. The strategies adopted by the DID process provide a framework for rating scale development and validation.
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Affiliation(s)
- Anthony L Vaccarino
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Amir H Kalali
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Pierre Blier
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Susan Gilbert Evans
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Nina Engelhardt
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Jane A Foster
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Benicio N Frey
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - John H Greist
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Kenneth A Kobak
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Raymond W Lam
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Glenda MacQueen
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Roumen Milev
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Daniel J Müller
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Sagar V Parikh
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Franca M Placenza
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Sakina J Rizvi
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Susan Rotzinger
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - David V Sheehan
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Terrence Sills
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Claudio N Soares
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Gustavo Turecki
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Rudolph Uher
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Janet B W Williams
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Sidney H Kennedy
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
| | - Kenneth R Evans
- Drs. Vaccarino, Evans and Gilbert Evans are with Indoc Research in Toronto, Ontario, Canada
- Dr Kalali is with the International Society for CNS Drug Development in San Diego, California
- Dr. Blier is with the Departments of Psychiatry and Cellular & Molecular Medicine at the University of Ottawa Institute of Mental Health Research in Ottawa, Ontario, Canada
- Dr. Engelhardt is with Intra-Cellular Therapies in New York, New York
- Dr. Foster is with Department of Psychiatry & Behavioural Neurosciences at McMaster University in Hamilton, Ontario, Canada
- Dr. Frey is with the Department of Psychiatry and Behavioural Neurosciences at McMaster University and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare in Hamilton, Ontario, Canada
- Dr. Greist is with the Department of Psychiatry at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin
- Dr. Kobak is with the Center for Telepsychology in Madison, Wisconsin
- Dr. Lam is with the Department of Psychiatry at the University of British Columbia in Vancouver, British Columbia, Canada
- Dr. MacQueen is with Mathison Centre for Mental Health Research and Education at the Department of Psychiatry, University of Calgary in Calgary, Alberta, Canada
- Dr. Milev is with the Department of Psychiatry and the Department of Psychology, and Centre for Neuroscience Studies at Queen's University in Kingston, Ontario, Canada
- Dr. Müller is with the Centre for Addiction and Mental Health and the Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada. Parikh is with the Department of Psychiatry at the University of Michigan in Ann Arbor, Michigan
- Dr. Placenza is with the Department of Psychiatry at the Krembil Research Centre, University Health Network, University of Toronto in Toronto, Ontario, Canada
- Dr. Rizvi is with Arthur Sommer Rotenberg Program for Suicide and Depression Studies at St. Michael's Hospital in Toronto, Ontario, Canada
- Dr. Rotzinger is with St. Michael's Hospital (Unity Health Toronto) and Department of Psychiatry at the University of Toronto in Toronto, Ontario, Canada
- Dr. Sheehan is with the University of South Florida College of Medicine in Tampa, Florida
- Dr. Sills was with OCBN in Toronto, Ontario, Canada
- Dr. Soares is with the Department of Psychiatry at Queen's University and Providence Care Hospital in Kingston, Ontario, Canada
- Dr. Turecki is with the Department of Psychiatry at McGill University in Montreal, Quebec, Canada
- Dr. Uher is with the Department of Psychiatry at Dalhousie University in Halifax, Nova Scotia, Canada
- Dr. Williams is with the Departments of Psychiatry and Neurology at Columbia University in New York, New York
- Dr. Kennedy is with the Department of Psychiatry at the University of Toronto and Centre for Depression and Suicide, St. Michael's Hospital in Toronto, Ontario, Canada
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Raper J, Bosinger S, Johnson Z, Tharp G, Moran SP, Chan AWS. Increased irritability, anxiety, and immune reactivity in transgenic Huntington's disease monkeys. Brain Behav Immun 2016; 58:181-190. [PMID: 27395434 PMCID: PMC5067193 DOI: 10.1016/j.bbi.2016.07.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 12/20/2022] Open
Abstract
Although the most notable clinical symptoms of Huntington's disease (HD) are motor disturbances and brain atrophy, other symptoms include cognitive dysfunction, emotional and hormonal dysregulation. Emotional dysregulation (irritability, anger/aggression, and anxiety) and increased inflammation are early emerging symptoms which can be detected decades before the onset of motor symptoms in HD patients. Despite the advances in understanding the genetic causes of HD there is still no cure or preventative treatment. Thus, to better understand the pathogenesis of HD and develop effective treatments, a holistic understanding of HD is needed, as well as animal models that replicate the full spectrum of HD symptoms. The current study examined the emotional, hormonal, and gene expression responses to an acute stressor of adult male transgenic HD rhesus monkeys (n=2) as compared to wild-type controls (n=2). Results revealed that HD monkeys expressed increased anxiety and irritability/aggression as compared to controls. Reactive cortisol response to the stressor was similar between groups. However, HD monkeys exhibited increased pro-inflammatory cytokines and higher induction of immune pathway genes as compared to controls. Overall, results reveal that HD monkeys exhibit these early emerging symptoms of HD and may be an effective animal model to facilitate the development of new therapeutics for HD patients.
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Affiliation(s)
- Jessica Raper
- Yerkes National Primate Research Center, 954 Gatewood Rd NE, Atlanta, GA 30329, USA; Department of Psychology, Emory University, 36 Eagle Row, Atlanta, GA 30322, USA.
| | - Steven Bosinger
- Yerkes National Primate Research Center, 954 Gatewood Rd NE, Atlanta, GA 30329, USA.
| | - Zachary Johnson
- Yerkes National Primate Research Center, 954 Gatewood Rd NE, Atlanta, GA 30329, USA.
| | - Gregory Tharp
- Yerkes National Primate Research Center, 954 Gatewood Rd NE, Atlanta, GA 30329, USA.
| | - Sean P Moran
- Yerkes National Primate Research Center, 954 Gatewood Rd NE, Atlanta, GA 30329, USA.
| | - Anthony W S Chan
- Yerkes National Primate Research Center, 954 Gatewood Rd NE, Atlanta, GA 30329, USA; Department of Human Genetics, Emory University School of Medicine, 615 Michael Street, Suite 301, Atlanta, GA 30322, USA.
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4
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Vaccarino AL, Evans KR, Kalali AH, Kennedy SH, Engelhardt N, Frey BN, Greist JH, Kobak KA, Lam RW, MacQueen G, Milev R, Placenza FM, Ravindran AV, Sheehan DV, Sills T, Williams JBW. The Depression Inventory Development Workgroup: A Collaborative, Empirically Driven Initiative to Develop a New Assessment Tool for Major Depressive Disorder. INNOVATIONS IN CLINICAL NEUROSCIENCE 2016; 13:20-31. [PMID: 27974997 PMCID: PMC5141593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The Depression Inventory Development project is an initiative of the International Society for CNS Drug Development whose goal is to develop a comprehensive and psychometrically sound measurement tool to be utilized as a primary endpoint in clinical trials for major depressive disorder. Using an iterative process between field testing and psychometric analysis and drawing upon expertise of international researchers in depression, the Depression Inventory Development team has established an empirically driven and collaborative protocol for the creation of items to assess symptoms in major depressive disorder. Depression-relevant symptom clusters were identified based on expert clinical and patient input. In addition, as an aid for symptom identification and item construction, the psychometric properties of existing clinical scales (assessing depression and related indications) were evaluated using blinded datasets from pharmaceutical antidepressant drug trials. A series of field tests in patients with major depressive disorder provided the team with data to inform the iterative process of scale development. We report here an overview of the Depression Inventory Development initiative, including results of the third iteration of items assessing symptoms related to anhedonia, cognition, fatigue, general malaise, motivation, anxiety, negative thinking, pain and appetite. The strategies adopted from the Depression Inventory Development program, as an empirically driven and collaborative process for scale development, have provided the foundation to develop and validate measurement tools in other therapeutic areas as well.
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Affiliation(s)
- Anthony L Vaccarino
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Kenneth R Evans
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Amir H Kalali
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Sidney H Kennedy
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Nina Engelhardt
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Benicio N Frey
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - John H Greist
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Kenneth A Kobak
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Raymond W Lam
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Glenda MacQueen
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Roumen Milev
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Franca M Placenza
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Arun V Ravindran
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - David V Sheehan
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Terrence Sills
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
| | - Janet B W Williams
- Dr. Vaccarino is with Indoc Research, Toronto, Ontario, Canada; Dr. Evans is with Indoc Research, Toronto, Ontario, Canada, and Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada; Dr. Kalali is with Quintiles Inc, San Diego, California, USA, and Department of Psychiatry, University of California, San Diego, California, USA; Drs. Kennedy and Placenza are with University Health Network, Toronto, Ontario, Canada; Dr. Engelhardt is with Cronos Clinical Consulting Services, Lambertville, New Jersey, USA; Dr. Frey is with Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, and Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, Ontario, Canada; Dr. Greist is with Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA; Dr. Kobak is with Center for Telepsychology, Madison, Wisconsin, USA; Dr. Lam is with Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada; Dr. MacQueen is with Mathison Centre for Mental Health Research and Education, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada; Dr. Milev is with Department of Psychiatry, Queen's University, Kingston, Ontario, Canada; Dr. Ravindran is with Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada, and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Dr. Sheehan is with Department of Psychiatry and Behavioral Health, University of South Florida College of Medicine, Tampa, Florida, USA; Dr. Sills was with OCBN, Toronto, Ontario, Canada; Dr. Williams is with Columbia University, New York, New York, USA, and Medavante Inc., Trenton, New Jersey, USA
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5
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Abstract
Cognition has been well characterized in the various stages of Huntington disease (HD) as well as in the prodrome before the motor diagnosis is given. Although the clinical diagnosis of HD relies on the manifestation of motor abnormalities, the associated impairments have been growing in prominence for several reasons. First, research to understand the most debilitating aspects of HD has suggested that cognitive and behavioral changes place the greatest burden on families, are most highly associated with functional decline, and can be predictive of institutionalization. Second, cognitive impairments are evident at least 15 years prior to the time at which motor diagnosis is given. Finally, cognitive decline is associated with biological markers such as brain atrophy, circulating levels of brain-derived neurotrophic factors, and insulin-like growth factor 1. Efforts are now underway to develop valid and reliable measures of cognition in the prodrome as well as in all stages of HD so that clinical trials can be conducted using cognitive outcomes.
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Affiliation(s)
- Jane S Paulsen
- Departments of Psychiatry, Neurology, Neurosciences, and Psychology, The University of Iowa Roy J. and Lucille A. Carver College of Medicine, Research, Iowa City, IA, 52242-1000, USA.
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6
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Vaccarino AL, Sills T, Anderson KE, Endicott J, Giuliano J, Guttman M, Ho AK, Kupchak P, Paulsen JS, Warner JH, Williams J, Evans K. Assessment of Day-to-Day Functioning in Prodromal and Early Huntington Disease. PLOS CURRENTS 2011; 3:RRN1262. [PMID: 21927718 PMCID: PMC3172089 DOI: 10.1371/currents.rrn1262] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 09/13/2011] [Indexed: 11/30/2022]
Abstract
The Functional Rating Scale Taskforce for pre-Huntington Disease (FuRST-pHD) is a multinational, multidisciplinary initiative with the goal of developing a data-driven, comprehensive, psychometrically sound, rating scale for assessing symptoms and functional ability in prodromal and early Huntington disease (HD) gene expansion carriers. The process involves input from numerous sources to identify relevant symptom domains, including HD individuals, caregivers, and experts from a variety of fields, as well as knowledge gained from the analysis of data from ongoing large-scale studies in HD using existing clinical scales. This is an iterative process in which an ongoing series of field tests in prodromal (prHD) and early HD individuals provides the team with data on which to make decisions regarding which questions should undergo further development or testing and which should be excluded. We report here the development and assessment of the first iteration of interview questions aimed to assess functional impact in day-to-day activities in prHD and early HD individuals.
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Affiliation(s)
- Anthony L Vaccarino
- Research Methods, Ontario Cancer Biomarker Network, Toronto, Ontario, Canada; Department of Psychiatry and Department of Neurology, University of Maryland, School of Medicine, Baltimore, MD USA; Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, New York; CHDI Foundation, Inc.; Division of Neurology, Department of Medicine, University of Toronto, Toronto, Ontario Canada; School of Psychology and Clinical Language Sciences, University of Reading, U.K.; Department of Psychiatry, The University of Iowa Carver College of Medicine, Iowa City, IA, USA; Department of Biostatistics, CHDI Foundation, Princeton NJ USA and College of Nursing, The University of Iowa, Iowa City, IA
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