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Systematic review of clinical effectiveness of interventions for treatment resistant late-life depression.

Beatriz Pozuelo Moyano, Denise Gomez Bautista, Karla Jocelyn Porras Ibarra, Christoph Mueller, Armin Von Gunten, Pierre Vandel, Setareh Ranjbar, Robert Howard, Allan H. Young, Robert A. C. Stewart, Suzanne Reeves, Vasiliki Orgeta

Ageing Research Reviews May 1, 2025 DOI: 10.1016/j.arr.2025.102710 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Systematic review Randomized Peer reviewed
Population Older adults with treatment-resistant late-life depression
Interventions antidepressants antipsychotics mood stabilizers ketamine psychotherapy electroconvulsive therapy repetitive transcranial magnetic stimulation computerized cognitive remediation
Topics Depression
Keywords Late life depression Older people Randomized controlled trials Geriatric mental health Depression therapy Clinical trials Antipsychotic medication
Citations 12
Key findings Aripiprazole augmentation appears effective for treatment-resistant late-life depression based on two studies, but evidence for other treatments is limited and of low quality.

Abstract

Treatment-resistant late-life depression (TRLLD) affects nearly half of older adults with major depression. This systematic review evaluates published evidence of effectiveness of both pharmacological and non-pharmacological treatments for TRLLD. A search of MEDLINE, EMBASE, CINAHL, PsycINFO, the Cochrane Library, and online trial registries up to March 2024 was conducted to identify randomized controlled trials (RCTs) evaluating pharmacological and non-pharmacological interventions for TRLLD. Seven studies assessed the effectiveness of pharmacological interventions (antidepressants, antipsychotics, mood stabilizers, or ketamine) and another seven examined non-pharmacological approaches (psychotherapy, electroconvulsive therapy, repetitive transcranial magnetic stimulation (rTMS), and computerized cognitive remediation). Aripiprazole (2 studies), venlafaxine (1 study), ketamine (1 study), and lithium (1 study) were associated with a reduction in depressive symptoms post-treatment compared to the comparator treatment group. rTMS (2 studies), sequential bilateral theta burst stimulation (1 study) and cognitive remediation (1 study) also showed significant improvements in depressive symptoms post-treatment compared to a comparator treatment group. Quality of evidence varied from very low to medium among the included studies. Most studies reported data on small sample sizes. We identified a small number of RCTs evaluating treatments for TRLLD. Aripiprazole augmentation appears to be an effective treatment based on two studies, with an acceptable side effect profile. Other treatments may be effective, but the evidence is based on very low-quality evidence. Future large-scale RCTs are urgently needed to draw firm conclusions.

Comparable studies

Other systematic reviews and meta-analyses on depression, most cited first.

Study Year Design Participants
Ketamine and Other NMDA Antagonists: Early Clinical Trials and Possible Mechanisms in Depression Participants with major depression in placebo-controlled, double-blind, randomized... 2015 Systematic review and meta-analysis
Side-effects associated with ketamine use in depression: a systematic review. Patients with depression 2018 Systematic review
Comparative efficacy of racemic ketamine and esketamine for depression: a systematic review and meta-analysis Adults with unipolar or bipolar major depression 2020 Systematic review and meta-analysis n = 1,877
Single-dose infusion ketamine and non-ketamine N-methyl-D-aspartate receptor antagonists for unipolar and bipolar depression: a meta-analysis of efficacy, safety and time trajectories Patients with major depressive disorder or bipolar depression 2016 Systematic review and meta-analysis n = 588
Therapeutic effects of classic serotonergic psychedelics: A systematic review of modern‐era clinical studies Patients with cancer- or illness-related anxiety and depression, major depressive... 2020 Systematic review n = 188

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