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Autor(en) / Beteiligte
Titel
Quantitative analysis of mRNA-1273 COVID-19 vaccination response in immunocompromised adult hematology patients
Ist Teil von
  • Blood advances, 2022-03, Vol.6 (5), p.1537-1546
Ort / Verlag
United States: Elsevier Inc
Erscheinungsjahr
2022
Quelle
MEDLINE
Beschreibungen/Notizen
  • Vaccination guidelines for patients treated for hematological diseases are typically conservative. Given their high risk for severe COVID-19, it is important to identify those patients that benefit from vaccination. We prospectively quantified serum immunoglobulin G (IgG) antibodies to spike subunit 1 (S1) antigens during and after 2-dose mRNA-1273 (Spikevax/Moderna) vaccination in hematology patients. Obtaining S1 IgG ≥ 300 binding antibody units (BAUs)/mL was considered adequate as it represents the lower level of S1 IgG concentration obtained in healthy individuals, and it correlates with potent virus neutralization. Selected patients (n = 723) were severely immunocompromised owing to their disease or treatment thereof. Nevertheless, >50% of patients obtained S1 IgG ≥ 300 BAUs/mL after 2-dose mRNA-1273. All patients with sickle cell disease or chronic myeloid leukemia obtained adequate antibody concentrations. Around 70% of patients with chronic graft-versus-host disease (cGVHD), multiple myeloma, or untreated chronic lymphocytic leukemia (CLL) obtained S1 IgG ≥ 300 BAUs/mL. Ruxolitinib or hypomethylating therapy but not high-dose chemotherapy blunted responses in myeloid malignancies. Responses in patients with lymphoma, patients with CLL on ibrutinib, and chimeric antigen receptor T-cell recipients were low. The minimal time interval after autologous hematopoietic cell transplantation (HCT) to reach adequate concentrations was <2 months for multiple myeloma, 8 months for lymphoma, and 4 to 6 months after allogeneic HCT. Serum IgG4, absolute B- and natural killer–cell number, and number of immunosuppressants predicted S1 IgG ≥ 300 BAUs/mL. Hematology patients on chemotherapy, shortly after HCT, or with cGVHD should not be precluded from vaccination. This trial was registered at Netherlands Trial Register as #NL9553. •Immunochemotherapy does not preclude adequate antibody responses in hematology patients, except when B cells are absent or dysfunctional.•During the pandemic, COVID-19 vaccination should not be delayed in hematology patients. [Display omitted]
Sprache
Englisch
Identifikatoren
ISSN: 2473-9529
eISSN: 2473-9537
DOI: 10.1182/bloodadvances.2021006917
Titel-ID: cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_8816838

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