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Exploring the Association between Monoclonal Antibodies and Depression and Suicidal Ideation and Behavior: A VigiBase Study

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  • Lotte A. Minnema

    (Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University
    Medicines Evaluation Board)

  • Thijs J. Giezen

    (Medicines Evaluation Board
    Foundation Pharmacy for Hospitals in Haarlem)

  • Patrick C. Souverein

    (Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University)

  • Toine C. G. Egberts

    (Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University
    University Medical Center Utrecht)

  • Hubert G. M. Leufkens

    (Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University)

  • Helga Gardarsdottir

    (Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University
    University Medical Center Utrecht
    University of Iceland)

Abstract

Introduction Several monoclonal antibodies (mAbs) have been linked to neuropsychiatric adverse effects in patients, including depression and suicidal ideation and behavior. Objective The aim of this study was to quantify and characterize spontaneously reported adverse drug reactions (ADRs) of depression and suicidal ideation and behavior related to mAb users, and to explore a possible association with their mechanism of action. Methods We included mAb ADRs that were reported in VigiBase, and identified those related to depression and suicidal ideation and behavior. Reporting odds ratios (RORs) were estimated for each mAb (bevacizumab as the reference) and according to their influence on the immune system (not directly targeting [reference], stimulating, or suppressing). Those suppressing the immune system were further divided into their intended indication (auto-immune diseases, cancer). Results Overall, 2,924,319 ADRs for 44 mAbs were included; 9455 ADRs were related to depression and 1770 were related to suicidal ideation and behavior. The association was strongest for natalizumab and belimumab, both for depression (ROR 5.7, 95% confidence interval [CI] 5.0–6.4; and ROR 5.1, 95% CI 4.2–6.2) and suicidal ideation and behavior (ROR 12.0, 95% CI 7.9–18.3; and ROR 20.2, 95% CI 12.4–33.0). Those suppressing the immune system showed higher ROR, i.e. 1.9 (95% CI 1.8–2.0) for depression and 3.6 (95% CI 3.0–4.4) for suicidal ideation and behavior. This finding was only seen for mAbs used for treating autoimmune diseases. Conclusion Depression and suicidal ideation and behavior are seen in patients using mAbs, particularly mAbs used for treating autoimmune diseases that suppress the immune system. For interpretation of these data, the indications for use and other characteristics require further consideration.

Suggested Citation

  • Lotte A. Minnema & Thijs J. Giezen & Patrick C. Souverein & Toine C. G. Egberts & Hubert G. M. Leufkens & Helga Gardarsdottir, 2019. "Exploring the Association between Monoclonal Antibodies and Depression and Suicidal Ideation and Behavior: A VigiBase Study," Drug Safety, Springer, vol. 42(7), pages 887-895, July.
    • Handle: RePEc:spr:drugsa:v:42:y:2019:i:7:d:10.1007_s40264-018-00789-9
    DOI: 10.1007/s40264-018-00789-9
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    References listed on IDEAS

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    1. Marin Banovac & Gianmario Candore & Jim Slattery & Francois Houÿez & David Haerry & Georgy Genov & Peter Arlett, 2017. "Patient Reporting in the EU: Analysis of EudraVigilance Data," Drug Safety, Springer, vol. 40(7), pages 629-645, July.
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    Cited by:

    1. David Hunt, 2019. "Inflammation, Monoclonal Antibodies and Depression: Joining the Dots," Drug Safety, Springer, vol. 42(7), pages 811-812, July.

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