Slowing Cognitive Decline in Major Depressive Disorder and Mild Cognitive Impairment

认知障碍 重性抑郁障碍 认知 认知功能衰退 心理学 精神科 医学 临床心理学 痴呆 内科学 疾病
作者
Tarek K. Rajji,Christopher R. Bowie,Nathan Herrmann,Bruce G. Pollock,Krista L. Lanctôt,Sanjeev Kumar,Alastair J. Flint,Linda Mah,Corinne E. Fischer,Meryl A. Butters,Marom Bikson,James L. Kennedy,Daniel M. Blumberger,Zafiris J. Daskalakis,Damien Gallagher,Mark Rapoport,Nicolaas P. L. G. Verhoeff,Angela Golas,Ariel Graff‐Guerrero,Érica Leandro Marciano Vieira,Aristotle N. Voineskos,Heather Brooks,Ashley Melichercik,Kevin E. Thorpe,Benoit H. Mulsant,Benoit H. Mulsant,Tarek K. Rajji,Nathan Herrmann,Bruce G. Pollock,Daniel M. Blumberger,Christopher R. Bowie,Meryl A. Butters,Corinne E. Fischer,Alastair J. Flint,Angela Golas,Ariel Graff,James L. Kennedy,Sanjeev Kumar,Krista L. Lanctôt,Lillian Lourenço,Linda Mah,Shima Ovaysikia,Mark Rapoport,Kevin E. Thorpe,N. P. L. G. Verhoeff,Aristotle N. Voineskos,Kathleen Bingham,Lina Chiuccariello,Tiffany W. Chow,Pallavi Dham,Breno S. Diniz,Dielle Miranda,Maria Carmela Tartaglia
出处
期刊:JAMA Psychiatry [American Medical Association]
标识
DOI:10.1001/jamapsychiatry.2024.3241
摘要

Importance Older adults with major depressive disorder (MDD) or mild cognitive impairment (MCI) are at high risk for cognitive decline. Objective To assess the efficacy of cognitive remediation (CR) plus transcranial direct current stimulation (tDCS) targeting the prefrontal cortex in slowing cognitive decline, acutely improving cognition, and reducing progression to MCI or dementia in older adults with remitted MDD (rMDD), MCI, or both. Design, Setting, and Participants This randomized clinical trial was conducted at 5 academic hospitals in Toronto, Ontario, Canada. Participants were older adults who had rMDD (with or without MCI, age ≥65 y) or MCI without rMDD (age ≥60 y). Assessments were made at baseline, month 2, and yearly from baseline for 3 to 7 years. Interventions CR plus tDCS (hereafter, active) or sham plus sham 5 days a week for 8 weeks followed by twice-a-year 5-day boosters and daily at-home CR or sham CR. Main Outcomes and Measures The primary outcome was change in global composite cognitive score. Secondary outcomes included changes in 6 cognitive domains, moderating effect of the diagnosis, moderating effect of APOE ε4 status, change in composite score at month 2, and progression to MCI or dementia over time. Results Of 486 older adults who provided consent, 375 (with rMDD, MCI, or both) received at least 1 intervention session (mean [SD] age, 72.2 [6.4] years; 232 women [62%] and 143 men [38%]). Over a median follow-up of 48.3 months (range, 2.1-85.9), CR and tDCS slowed cognitive decline in older adults with rMDD or MCI (adjusted z score difference [active − sham] at month 60, 0.21; 95% CI, 0.07 to 0.35; likelihood ratio test [LRT] P = .006). In the preplanned primary analysis, CR and tDCS did not improve cognition acutely (adjusted z score difference [active − sham] at month 2, 0.06, 95% CI, −0.006 to 0.12). Similarly, the effect of CR and tDCS on delaying progression from normal cognition to MCI or MCI to dementia was weak and not significant (hazard ratio, 0.66; 95% CI, 0.40 to 1.08; P = .10). Preplanned analyses showed treatment effects for executive function (LRT P = .04) and verbal memory (LRT P = .02) and interactions with diagnosis ( P = .01) and APOE ε4 ( P < .001) demonstrating a larger effect among those with rMDD and in noncarriers of APOE ε4. Conclusions and Relevance The study showed that CR and tDCS, both targeting the prefrontal cortex, is efficacious in slowing cognitive decline in older adults at risk of cognitive decline, particularly those with rMDD (with or without MCI) and in those at low genetic risk for Alzheimer disease. Trial Registration ClinicalTrials.gov Identifier: NCT02386670

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