Determinants of durable humoral and T cell immunity in myeloma patients following COVID-19 vaccination

Eur J Haematol. 2024 Apr;112(4):547-553. doi: 10.1111/ejh.14143. Epub 2023 Dec 20.

Abstract

Objective: To describe determinants of persisting humoral and cellular immune response to the second COVID-19 vaccination among patients with myeloma.

Methods: This is a prospective, observational study utilising the RUDYstudy.org platform. Participants reported their second and third COVID-19 vaccination dates. Myeloma patients had an Anti-S antibody level sample taken at least 21 days after their second vaccination and a repeat sample before their third vaccination.

Results: 60 patients provided samples at least 3 weeks (median 57.5 days) after their second vaccination and before their third vaccination (median 176.0 days after second vaccine dose). Low Anti-S antibody levels (<50 IU/mL) doubled during this interval (p = .023) and, in the 47 participants with T-spot data, there was a 25% increase negative T-spot tests (p = .008). Low anti-S antibody levels prior to the third vaccination were predicted by lower Anti-S antibody level and negative T-spot status after the second vaccine. Independent determinants of a negative T-spot included increasing age, previous COVID infection, high CD4 count and lower percentage change in Anti-S antibody levels.

Conclusions: Negative T-spot results predict low Anti-S antibody levels (<50 IU/mL) following a second COVID-19 vaccination and a number of biomarkers predict T cell responses in myeloma patients.

Keywords: COVID-19 vaccination; myeloma; predictors.

Publication types

  • Observational Study

MeSH terms

  • Antibodies
  • Antibodies, Viral
  • COVID-19 Vaccines
  • COVID-19* / prevention & control
  • Humans
  • Immunity, Cellular
  • Multiple Myeloma* / therapy
  • T-Lymphocytes
  • Vaccination

Substances

  • COVID-19 Vaccines
  • Antibodies
  • Antibodies, Viral