Pharmacopsychiatry 2022; 55(02): 109-114
DOI: 10.1055/a-1589-6301
Original Paper

Baseline Working Memory Predicted Response to Low-Dose Ketamine Infusion in Patients with Treatment-Resistant Depression

1   Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
2   Division of Psychiatry, Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
4   Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
,
Wei-Chen Lin
1   Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
2   Division of Psychiatry, Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
4   Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
,
Cheng-Ta Li
1   Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
2   Division of Psychiatry, Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
4   Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
,
Shih-Jen Tsai
1   Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
2   Division of Psychiatry, Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
4   Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
,
Hui-Ju Wu
1   Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
,
Ya-Mei Bai
1   Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
2   Division of Psychiatry, Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
4   Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
,
Chen-Jee Hong
1   Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
2   Division of Psychiatry, Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
4   Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
,
Pei-Chi Tu
1   Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
2   Division of Psychiatry, Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
3   Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
,
Tung-Ping Su
1   Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
2   Division of Psychiatry, Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
3   Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
4   Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
5   Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan
› Institutsangaben

Funding Source The study was supported by a grant from Taipei Veterans General Hospital (V106B-020, V107B-010, V107C-181, V108B-012, V110C-025, V110B-002), Yen Tjing Ling Medical Foundation (CI- 110–30), Ministry of Science and Technology, Taiwan (101-2314- B-010-060, 102-2314-B-010-060, 107-2314-B-075-063-MY3, 108-2314-B-075 -037, 110-2314-B-075-026, 110-2314-B-075- 024-MY3) and the Kun-Po Soo Medical Foundation. None of these funding organizations had any role in the study design, data collection, analysis, interpretation of results, writing of the report, and the ultimate decision to submit the paper for publication.
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Abstract

Introduction Pretreatment neurocognitive function may predict the treatment response to low-dose ketamine infusion in patients with treatment-resistant depression (TRD). However, the association between working memory function at baseline and the antidepressant efficacy of ketamine infusion remains unclear.

Methods A total of 71 patients with TRD were randomized to one of three treatment groups: 0.5 mg/kg ketamine, 0.2 mg/kg ketamine, or normal saline. Depressive symptoms were measured using the 17-item Hamilton Depression Rating Scale (HDRS) at baseline and after treatment. Cognitive function was evaluated using working memory and go-no-go tasks at baseline.

Results A generalized linear model with adjustments for demographic characteristics, treatment groups, and total HDRS scores at baseline revealed only a significant effect of working memory function (correct responses and omissions) on the changes in depressive symptoms measured by HDRS at baseline (F=12.862, p<0.05). Correlation analysis further showed a negative relationship (r=0.519, p=0.027) between pretreatment working memory function and changes in HDRS scores in the 0.5 mg/kg ketamine group.

Discussion An inverse relationship between pretreatment working memory function and treatment response to ketamine infusion may confirm that low-dose ketamine infusion is beneficial and should be reserved for patients with TRD.



Publikationsverlauf

Eingereicht: 16. Juni 2021
Eingereicht: 03. August 2021

Angenommen: 04. August 2021

Artikel online veröffentlicht:
16. September 2021

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