Seroprevalencia del SARS-CoV-2 en los pacientes con enfermedades inmunomediadas en tratamiento con terapias biológicas y sintéticos dirigidos
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Romero Bogado, Liz
Steiner, Martina
Cobo Ibáñez, María Tatiana
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Introducción: La seroprevalencia del SARS-CoV-2 en las enfermedades
inflamatorias inmunomediadas (IMID) sigue siendo fuente de
controversia. Objetivo: Comparar la seroprevalencia de anticuerpos
(Ac) anti SARS-CoV-2 en pacientes con IMID en tratamientos con
fármacos antirreumáticos modificadores de la enfermedad biológicos
(FAMEb) o sintéticos dirigidos (FAMEsd) frente a un grupo de personas
sin IMID. Métodos: Estudio de pacientes con IMID y tratamientos
con FAMEb y FAMEsd y de individuos sin IMID. Mediante la técnica
de inmunoensayo por quimioluminiscencia indirecta, se determinaron
las serologías IgG frente al SARS-CoV-2 entre octubre/2020 y
mayo/2021. Resultados: Se estudiaron 1.100 sujetos, 550 pacientes
con IMID y 550 personas sin IMID. Se observó una seroprevalencia
de 16% (88/550) en los pacientes frente a 19,3% (106/550) en el grupo de
personas sin IMID, sin significación estadística (OR 0,790 [IC 95%
0,558-1,118]). Comparando los tratamientos con FAMEb o FAMEsd,
se observó una tendencia a una menor seroprevalencia con rituximab,
en relación con los individuos sin IMID (OR 0,296 [IC 95% 0,087-
1,007]). Asimismo, se encontró menor seroprevalencia en los pacientes
que además de su FAMEb recibían tratamiento con metotrexato, en
comparación con el grupo de personas sin IMID (OR 0,432 [IC 95%
0,223-0,835]). Conclusiones: Las IMID en tratamiento con FAMEb o
FAMEsd no influyen en la seroprevalencia frente al SARS-CoV-2 de
los pacientes. El tratamiento concomitante con metotrexato disminuye
de forma significativa la seroprevalencia en estos pacientes.
Palabras clave: anticuerpos anti-SARS-CoV-2; seroprevalencia;
enfermedades inflamatorias inmunomediadas.
Background: The seroprevalence of SARS-CoV-2 in immunemediated inflammatory diseases (IMID) remains controversial. Aim: To compare the seroprevalence of antibodies (Ab) to SARS-CoV-2 in patients with IMID receiving treatment with biological diseasemodifying antirheumatic drugs (bDMARD) or targeted synthetic (tsDMARD) versus a group of people without IMID. Methods: Study of patients with IMID and treatments with bDMARD and tsDMARD and individuals without IMID. IgG serology against SARS-CoV-2 was measured using the two-step sandwich immunoassay technique by indirect chemiluminescence between October 2020 and May 2021. Results: A total of 1100 subjects were studied, 550 patients with IMID and 550 persons without IMID. A seroprevalence of 16% (88/550) was observed in patients versus 19.3% (106/550) in the group of people without IMID, without statistical significance (OR 0.790 [95% CI 0.558-1.118]). Comparing the treatments with bDMARD or tsDMARD, there was a tendency to lower seroprevalence with rituximab, in relation to individuals without IMID (OR 0.296 [95% CI 0.087-1.007]). In addition, lower seroprevalence was found in patients who received methotrexate treatment in addition to their bDMARD, compared to the group of individuals without IMID (OR 0.432 [95% CI 0.223-0.835]). Conclusions: IMIDs in treatment with bDMARDs or tsDMARDs do not influence the seroprevalence against SARS-CoV-2 in patients. Concomitant treatment with methotrexate significantly decreased seroprevalence in these patients. Keywords: anti-SARS-CoV-2 antibodies; seroprevalence; immunemediated inflammatory diseases.
Background: The seroprevalence of SARS-CoV-2 in immunemediated inflammatory diseases (IMID) remains controversial. Aim: To compare the seroprevalence of antibodies (Ab) to SARS-CoV-2 in patients with IMID receiving treatment with biological diseasemodifying antirheumatic drugs (bDMARD) or targeted synthetic (tsDMARD) versus a group of people without IMID. Methods: Study of patients with IMID and treatments with bDMARD and tsDMARD and individuals without IMID. IgG serology against SARS-CoV-2 was measured using the two-step sandwich immunoassay technique by indirect chemiluminescence between October 2020 and May 2021. Results: A total of 1100 subjects were studied, 550 patients with IMID and 550 persons without IMID. A seroprevalence of 16% (88/550) was observed in patients versus 19.3% (106/550) in the group of people without IMID, without statistical significance (OR 0.790 [95% CI 0.558-1.118]). Comparing the treatments with bDMARD or tsDMARD, there was a tendency to lower seroprevalence with rituximab, in relation to individuals without IMID (OR 0.296 [95% CI 0.087-1.007]). In addition, lower seroprevalence was found in patients who received methotrexate treatment in addition to their bDMARD, compared to the group of individuals without IMID (OR 0.432 [95% CI 0.223-0.835]). Conclusions: IMIDs in treatment with bDMARDs or tsDMARDs do not influence the seroprevalence against SARS-CoV-2 in patients. Concomitant treatment with methotrexate significantly decreased seroprevalence in these patients. Keywords: anti-SARS-CoV-2 antibodies; seroprevalence; immunemediated inflammatory diseases.
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Bibliographic reference
Romero-Bogado, Liz, et al. «Seroprevalencia del SARS-CoV-2 en los pacientes con enfermedades inmunomediadas en tratamiento con terapias biológicas y sintéticos dirigidos». Revista Chilena de Infectología, vol. 40, n.o 6, diciembre de 2023, pp. 618-625, https://doi.org/10.4067/s0716-10182023000600618.







