Abstract
Introduction
To date, there are no therapeutics that have gained regulatory approval by the United States Food and Drug Administration (FDA) for the treatment of post-COVID-19 condition (PCC), a debilitating condition characterized by cognitive impairment and mood symptoms. Additionally, persistent inflammation, metabolic dysfunction, and risks associated with an elevated body mass index (BMI) have been observed. Herein, we aimed to assess the efficacy of vortioxetine in improving depressive symptoms among individuals with PCC, as modulated by inflammation, metabolic dysfunction, and BMI.
Methods
In this post-hoc analysis, we present preliminary data obtained from an 8-week randomized, double-blind, placebo-controlled trial. Participants included adults aged 18 years and older residing in Canada who were experiencing symptoms of World Health Organization (WHO)-defined PCC. Recruitment began November 2021 and ended January 2023. Of the 200 participants enrolled, 147 were randomized (1:1) to receive vortioxetine (5–20 mg, n = 73) or placebo (n = 74) for daily treatment under double-blind conditions. The primary outcome measure was the change from baseline to endpoint in the 16-Item Quick Inventory of Depressive Symptomatology Self-Report Questionnaire (QIDS-SR-16).
Results
Our findings revealed significant effects for time (χ2 = 9.601, p = 0.002), treatment (χ2 = 9.135, p = 0.003), and the treatment × time × CRP × TG-HDL × BMI interaction (χ2 = 26.092, p < 0.001) on PCC-related depressive symptoms in the adjusted model. Moreover, the between-group analysis showed a significant improvement with vortioxetine at endpoint as compared to placebo (mean difference = − 5.41, SEM = 1.335, p < 0.001).
Conclusion
Overall, vortioxetine significantly improved depressive symptoms among participants with PCC in the adjusted model. Notably, individuals with baseline markers of increased inflammation, metabolic disruption, and elevated BMI exhibited a more pronounced antidepressant effect at endpoint.
Trial Registration Number
NCT05047952 (ClinicalTrials.gov).
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Data Availability
The data and research materials that support the findings of this study are available from the corresponding author, Roger S. McIntyre, upon reasonable request and will be anonymized.
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Acknowledgements
The authors would like to thank all of the participants within the present study, as well as the staff members of the Brain and Cognition Discovery Foundation (BCDF) for their role in the data collection.
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The authors did not use any medical writing or editorial assistance for this article.
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Contributions
Conceptualization: Angela T.H. Kwan and Roger S. McIntyre; Data Curation: Angela T.H. Kwan, Lee Phan and Mehala Subramaniapillai; Formal Analysis: Angela T.H. Kwan; Funding Acquisition: Roger S. McIntyre; Investigation: Angela T.H. Kwan; Methodology: Angela T.H. Kwan; Project Administration: Angela T.H. Kwan, Lee Phan, Mehala Subramaniapillai and Roger S. McIntyre; Resources: Angela T.H. Kwan and Roger S. McIntyre; Software: Angela T.H. Kwan; Supervision: Angela T.H. Kwan and Roger S. McIntyre; Validation: Angela T.H. Kwan, Gia Han Le and Ziji Guo; Visualization: Angela T.H. Kwan; Writing-Original Draft: Angela T.H. Kwan and Roger S. McIntyre; Writing-Review & Editing: All authors.
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Conflict of Interest
Dr. Roger S. McIntyre has received research grant support from CIHR, GACD, National Natural Science Foundation of China (NSFC), and the Milken Institute; speaker/consultation fees from Lundbeck, Janssen, Alkermes, Neumora Therapeutics, Boehringer Ingelheim, Sage, Biogen, Mitsubishi Tanabe, Purdue, Pfizer, Otsuka, Takeda, Neurocrine, Sunovion, Bausch Health, Axsome, Novo Nordisk, Kris, Sanofi, Eisai, Intra-Cellular, NewBridge Pharmaceuticals, Viatris, Abbvie, and Atai Life Sciences. Dr. Roger McIntyre is a CEO of Braxia Scientific Corp. Dr. Roger S. McIntyre is an editor-in-chief/editorial board member of Advances in Therapy. Dr. Roger S. McIntyre was not involved in the selection of peer reviewers for the manuscript nor any of the subsequent editorial decisions. Felicia Ceban, Kayla M. Teopiz and Mehala Subramaniapillai received fees from Braxia Scientific Corp. Dr. Taeho Greg Rhee was supported in part by the National Institute on Aging (NIA) (#R21AG070666; R21AG078972), National Institute of Mental Health (#R21MH117438), National Institute on Drug Abuse (#R21DA057540) and Institute for Collaboration on Health, Intervention, and Policy (InCHIP) of the University of Connecticut. Dr. Rhee serves as a review committee member for Patient-Centered Outcomes Research Institute (PCORI) and Substance Abuse and Mental Health Services Administration (SAMHSA) and has received honoraria payments from PCORI and SAMHSA. Dr. Rhee has also served as a stakeholder/consultant for PCORI and received consulting fees from PCORI. Dr. Rhee serves as an advisory committee member for International Alliance of Mental Health Research Funders (IAMHRF). Dr. Rhee is currently a co-Editor-in-Chief of Mental Health Science and has received honorarium payments annually from the publisher, John Wiley & Sons, Inc. Dr. Roger Ho has received funding from the National University of Singapore iHeathtech Other Operating Expenses (A-0001415-09-00).
Ethical Approval
A local research ethics board (REB) approved the primary study, which is currently published (NCT05047952). The study adhered to the guidelines of Good Clinical Practice (ICH, 1996) and the Declaration of Helsinki (WMA, 2008), with the trial design receiving approval from a local research ethics board (REB). The protocol and dataset presented herein are derived from the primary study, which aimed to investigate the efficacy of vortioxetine in treating cognitive deficits in individuals with PCC and is currently published (ClinicalTrials.gov number NCT05047952). All procedures involving human subjects/patients were approved by Advarra (Pro00055939).
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Kwan, A.T.H., Guo, Z., Ceban, F. et al. Assessing the Effects of Metabolic Disruption, Body Mass Index and Inflammation on Depressive Symptoms in Post-COVID-19 Condition: A Randomized Controlled Trial on Vortioxetine. Adv Ther 41, 1983–1994 (2024). https://doi.org/10.1007/s12325-024-02826-9
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DOI: https://doi.org/10.1007/s12325-024-02826-9