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Treatment of mixed depression with theta-burst stimulation (TBS): results from a double-blind, randomized, sham-controlled clinical trial

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Tavares, Diego Freitas [1, 2] ; Suen, Paulo [3] ; Rodrigues dos Santos, Carla Garcia [2] ; Moreno, Doris Hupfeld [2] ; Lane Valiengo, Leandro Da Costa [1] ; Klein, Izio [1] ; Borrione, Lucas [1] ; Marques Forte, Pamela [2] ; Brunoni, Andre R. [4, 1, 5] ; Alberto Moreno, Ricardo [2]
Número total de Autores: 10
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Serv Interdisciplinary Neuromodulat, Dept & Inst Psychiat, Fac Med, Sao Paulo - Brazil
[2] Univ Sao Paulo, Fac Med, Dept & Inst Psychiat, Mood Disorders Unit, Sao Paulo - Brazil
[3] Univ Sao Paulo, Fac Med, Sao Paulo - Brazil
[4] Univ Sao Paulo, Inst Psychiat, Lab Neurosci, Sao Paulo - Brazil
[5] Univ Sao Paulo, Dept Psychiat, Lab Neurosci, Sao Paulo - Brazil
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: NEUROPSYCHOPHARMACOLOGY; v. 46, n. 13, p. 2257-2265, DEC 2021.
Citações Web of Science: 0

Mixed depression is probably different in terms of clinical course and response to treatment. Repetitive transcranial magnetic stimulation (rTMS) is well established in non-mixed depression, and theta-burst stimulation (TBS) protocol is replacing conventional protocols because of noninferiority and reduced delivery time. However, TBS has not been adequately studied in mixed states. This study was a double-blind, six-week, sham-controlled, and randomized clinical trial of bilateral TBS targeting the right and left dorsolateral prefrontal cortex, respectively. Adults with bipolar and major depressive disorder experiencing an acute mixed depression were eligible if they had not benefited from a first- or second-line treatment for acute unipolar or bipolar depression recommended by the Canadian Network for Mood and Anxiety Treatments. Out of 100 patients included, 90 composed modified intention-to-treat sample, which was patients that completed at least one week of the intervention. There were no significant differences in Montgomery-Asberg depression rating scale score changes (least squares mean difference between groups at week 3, -0.06 {[}95% CI, - 3.39 to 3.51; P = 0.97] in favor of sham TBS). Response and remission rates per MADRS were also not statistically different among active and sham groups (35.7% vs. 43.7%, and 28.5% vs. 37.5% respectively at week 6, ps > 0.51). No other analyses from baseline to weeks 3 or 6 revealed significant time x group interaction or mean differences among groups in the mITT sample. Bilateral TBS targeting the DLPFC is not efficacious as an add-on treatment of acute bipolar and unipolar mixed depression. ClinicalTrials.govIdentifier: NCT04123301 (AU)

Processo FAPESP: 17/19237-1 - Avaliação da eficácia, segurança e tolerabilidade da estimulação magnética transcraniana theta-burst nos episódios depressivos mistos do transtorno bipolar e depressivo maior.
Beneficiário:Ricardo Alberto Moreno
Linha de fomento: Auxílio à Pesquisa - Regular