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Inicio Medicina Clínica (English Edition) Safety and immunogenicity of cilgavimab-tixagevimab for COVID-19 pre-exposure pr...
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Vol. 160. Issue 10.
Pages 458-459 (May 2023)
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Vol. 160. Issue 10.
Pages 458-459 (May 2023)
Scientific letter
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Safety and immunogenicity of cilgavimab-tixagevimab for COVID-19 pre-exposure prophylaxis in immunocompromised patients
Seguridad e inmunogenicidad de cilgavimab-tixagevimab para la profilaxis preexposición frente a la COVID-19 en pacientes inmunodeprimidos
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María Fernández-Pradaa,
Corresponding author
mariafdezprada@gmail.com

Corresponding author.
, Jaime Jesús Pérez-Martínb, Paula Cienfuegos-Gonzáleza
a Servicio de Medicina Preventiva y Salud Pública, Hospital Vital Álvarez Buylla, Mieres, Asturias, Spain
b Subdirector General de Salud Pública, Consejería de Salud de la Región de Murcia, Murcia, Spain
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Dear Editor:

Immunisation of immunocompromised patients is currently a health challenge. Not all diseases and treatments affect the immune system in the same way, so the indications for immunisation may vary according to the clinical profile of the patient.1 In addition, the vaccine response may be impaired and suboptimal in some specific populations.2 The COVID-19 pandemic has made the need for proper identification of immunocompromised patients and prioritisation of their immunisation visible to authorities and healthcare professionals. In March 2022, the Spanish Ministry of Health published the indications for use of cilgavimab-tixagevimab (Evusheld®), monoclonal antibodies against COVID-19, in order to cover a medical need that had proven insufficient with vaccines.3

The aim of this scientific letter is to present the safety and immunogenicity data of cilgavimab-tixagevimab as prophylaxis against COVID-19 in a group of immunocompromised patients. To this end, a descriptive study on the safety and immunogenicity of cilgavimab-tixagevimab was conducted between June and December 2022 in a vaccine unit. Patients included were immunocompromised patients who, according to the document published in March 2022, had IgG S1 < 260 BAU/mL (inadequate response) between 15 and 30 days after receiving the full COVID-19 vaccination course.3 Drug safety was assessed at 3 time points: +15 min, +24 h and +48 h after administration. In the first 15 min direct observation was carried out, at +24 h and +48 h telephone contact was made. Immunogenicity was assessed at +3 months after cilgavimab-tixagevimab administration by enzyme-linked immunoadsorption assay (ELISA) for the measurement of IgG S1. As a result, a total of 51 immunocompromised patients were candidates. Of these, 38 patients received cilgavimab-tixagevimab (5 patients refused, 6 patients were no longer candidates because they had COVID-19 after serological assessment and, on repeat testing, had IgG S1 > 260 BAU/mL, and 2 were terminally ill). Of the patients receiving cilgavimab-tixagevimab, 57.9% were male and the mean age was 66.26 years (maximum 89 years, minimum 21 years). In terms of clinical profile, 12 patients (31.57%) had received anti-CD20 drugs (7 rituximab and 5 ocrelizumab), 10 (26.31%) had haematological malignancies, 12 (21.37%) were solid organ recipients (10 kidney, one heart and one liver), one patient (2.63%) was haemodialyzed and 3 (7.89%) had autoimmune diseases. Notably, 2 of the patients who received cilgavimab-tixagevimab had COVID-19 after baseline serology and yet had IgG S1 < 260 BAU/mL on repeat serology.

No immediate ADRs were described. Seven ADRs were identified at +24 h (injection site pain in 3 patients, lower limb paraesthesia in one, injection site pruritus in one, acute gastroenteritis in one and acute gastroenteritis at +48 h), flushing in one and acute gastroenteritis in one) and 3 ADRs at +48 h (bronchial exacerbation, pruritic skin lesions on forearms and myalgias); all were reported to the Pharmacovigilance System. Immunogenicity at +3 months could be analysed in 26 of the 38 patients (+3 months had not yet passed in the case of 8 patients at the time of data analysis, one died for reasons unrelated to COVID-19 or the drug, one was lost to follow-up and two were in severe disease). Overall, all patients had IgG S1 > 260 BAU/mL at +3 months of cilgavimab-tixagevimab (46% > 2.080 BAU/mL; 42% between 1001 and 2080 BAU/mL and 12% between 260 and 1000 BAU/mL).

In conclusion, the use of monoclonal antibodies against COVID-19 in immunocompromised individuals is filling a medical need that was previously unmet. The effectiveness of COVID-19 vaccines in some groups of immunocompromised patients has been shown to be limited and other pharmacological alternatives need to be considered.4 In the group of patients studied, cilgavimab-tixagevimab had a safety profile similar to that reported in previous studies.5 No ADRs related to cardiovascular events were recorded. Finally, the immunogenicity described in the present paper is in agreement with that described by other authors.4

Ethical considerations

The authors declare that they have followed the hospital protocols on the publication of patient data, and that their privacy has been respected.

Funding

None.

Conflict of interest

The authors declare that they have no conflict of interest for the development of this paper.

References
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M. Dey, K. Bechman, S. Zhao, G.E. Fragoulis, C. Smith, A. Cope, et al.
Infection profile of immune-modulatory drugs used in autoimmune diseases: analysis of summary of product characteristic data.
RMD Open., 8 (2022),
[2]
K.E. Müller, D. Dohos, Z. Sipos, S. Kiss, F. Dembrovszky, N. Kovács, et al.
Immune response to influenza and pneumococcal vaccines in adults with inflammatory bowel disease: a systematic review and meta-analysis of 1429 patients.
Vaccine., 40 (2022), pp. 2076-2086
[3]
Consejo Interterritorial. Sistema Nacional de Salud. Recomendaciones de utilización de Evusheld para la prevención de COVID-19 [accessed 10 Oct 2022]. Available from: https://www.sanidad.gob.es/profesionales/saludPublica/prevPromocion/vacunaciones/covid19/docs/Recomendaciones_uso_Evusheld.pdf.
[4]
W.L. Conte, L. Golzarri-Arroyo.
Tixagevimab and Cilgavimab (Evusheld) boosts antibody levels to SARS-CoV-2 in patients with multiple sclerosis on b-cell depleters.
Mult Scler Relat Disord., 63 (2022),
[5]
M. Birabaharan, E. Hill, M. Begur, D.C. Kaelber, T.C.S. Martin, S.R. Mehta.
Cardiovascular outcomes after tixagevimab and cilgavimab use for pre-exposure prophylaxis against COVID-19: a population-based propensity-matched cohort study.
Clin Infect Dis., 16 (2022),
Copyright © 2023. Elsevier España, S.L.U.. All rights reserved
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