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Neuropsychiatric symptoms cluster and fluctuate over time in behavioral variant frontotemporal dementia.

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Title: Neuropsychiatric symptoms cluster and fluctuate over time in behavioral variant frontotemporal dementia.
Authors: Morrow, Christopher B. (AUTHOR), Kamath, Vidyulata (AUTHOR), Dickerson, Bradford C. (AUTHOR), Eldaief, Mark (AUTHOR), Rezaii, Neguine (AUTHOR), Wong, Bonnie (AUTHOR), McGinnis, Scott (AUTHOR), Darby, Ryan (AUTHOR), Staffaroni, Adam M. (AUTHOR), Lapid, Maria I. (AUTHOR), Pascual, Belen (AUTHOR), Rojas, Julio C. (AUTHOR), Masdeu, Joseph C. (AUTHOR), Tsapkini, Kyrana (AUTHOR), Huey, Edward D. (AUTHOR), Fisher, Daniel W. (AUTHOR), Pantelyat, Alexander (AUTHOR), Balaji, Akshata (AUTHOR), Sah, Eric (AUTHOR), Litvan, Irene (AUTHOR)
Source: Psychiatry & Clinical Neurosciences. Jun2025, Vol. 79 Issue 6, p327-335. 9p.
Subjects: Frontotemporal dementia, Burden of care, Disease progression, Neurobehavioral disorders, Mental depression, Cognition
Abstract: Aim: Cognitive and behavioral phenomena define behavioral variant frontotemporal dementia (bvFTD), but neuropsychiatric symptoms (NPS) outside the core criteria are common throughout the illness. Identifying how NPS cluster in bvFTD may guide development of future therapies. Methods: Participants (n = 354) with sporadic and genetic bvFTD were enrolled in the ARTFL LEFFTDS Longitudinal Frontotemporal Lobar Degeneration Consortium. Dementia stage was defined as early (CDR® plus NACC FTLD ≤1) or advanced (CDR® plus NACC FTLD ≥1). Baseline and annual follow‐up visit data were analyzed to compare NPS across stages of bvFTD. Psychiatric states were captured using the Neuropsychiatric Inventory‐Questionnaire and Clinician Judgment of Symptoms. Polychoric cluster analysis was used to describe NPS clusters. Results: NPS were highly prevalent (≥90%) in early and late bvFTD. Four NPS clusters were identified based on magnitude of factor loadings: affective, disinhibited, compulsive, and psychosis. Neuropsychiatric symptoms fluctuated across visits. In the affective cluster, depression showed the least visit‐to‐visit stability. In the disinhibited cluster, elation showed the least stability. Symptoms in the psychosis and compulsive clusters (hallucinations, delusions, obsessions/compulsions, and hyperorality) were largely stable, persisting from visit‐to‐visit in more than 50% of cases. Symptoms in the affective and disinhibited cluster were associated with the highest caregiver burden, while symptoms in the obsessive cluster were associated with the most functional impairment. Conclusion: NPS in bvFTD are frequent and cluster into four discrete groups. The fluctuating nature of some NPS in bvFTD suggests that they may not be reliable markers of disease progression or stage. [ABSTRACT FROM AUTHOR]
Copyright of Psychiatry & Clinical Neurosciences is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Neuropsychiatric symptoms cluster and fluctuate over time in behavioral variant frontotemporal dementia.
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  Data: <searchLink fieldCode="JN" term="%22Psychiatry+%26+Clinical+Neurosciences%22">Psychiatry & Clinical Neurosciences</searchLink>. Jun2025, Vol. 79 Issue 6, p327-335. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Frontotemporal+dementia%22">Frontotemporal dementia</searchLink><br /><searchLink fieldCode="DE" term="%22Burden+of+care%22">Burden of care</searchLink><br /><searchLink fieldCode="DE" term="%22Disease+progression%22">Disease progression</searchLink><br /><searchLink fieldCode="DE" term="%22Neurobehavioral+disorders%22">Neurobehavioral disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Mental+depression%22">Mental depression</searchLink><br /><searchLink fieldCode="DE" term="%22Cognition%22">Cognition</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Aim: Cognitive and behavioral phenomena define behavioral variant frontotemporal dementia (bvFTD), but neuropsychiatric symptoms (NPS) outside the core criteria are common throughout the illness. Identifying how NPS cluster in bvFTD may guide development of future therapies. Methods: Participants (n = 354) with sporadic and genetic bvFTD were enrolled in the ARTFL LEFFTDS Longitudinal Frontotemporal Lobar Degeneration Consortium. Dementia stage was defined as early (CDR® plus NACC FTLD ≤1) or advanced (CDR® plus NACC FTLD ≥1). Baseline and annual follow‐up visit data were analyzed to compare NPS across stages of bvFTD. Psychiatric states were captured using the Neuropsychiatric Inventory‐Questionnaire and Clinician Judgment of Symptoms. Polychoric cluster analysis was used to describe NPS clusters. Results: NPS were highly prevalent (≥90%) in early and late bvFTD. Four NPS clusters were identified based on magnitude of factor loadings: affective, disinhibited, compulsive, and psychosis. Neuropsychiatric symptoms fluctuated across visits. In the affective cluster, depression showed the least visit‐to‐visit stability. In the disinhibited cluster, elation showed the least stability. Symptoms in the psychosis and compulsive clusters (hallucinations, delusions, obsessions/compulsions, and hyperorality) were largely stable, persisting from visit‐to‐visit in more than 50% of cases. Symptoms in the affective and disinhibited cluster were associated with the highest caregiver burden, while symptoms in the obsessive cluster were associated with the most functional impairment. Conclusion: NPS in bvFTD are frequent and cluster into four discrete groups. The fluctuating nature of some NPS in bvFTD suggests that they may not be reliable markers of disease progression or stage. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Psychiatry & Clinical Neurosciences is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/pcn.13810
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