Safety and Immunogenicity of the Tetravalent Protein-Conjugated Meningococcal Vaccine (MCV4) in Recipients of Related and Unrelated Allogeneic Hematopoietic Stem Cell Transplantation Academic Article uri icon

Overview

MeSH Major

  • Hematopoietic Stem Cell Transplantation
  • Meningococcal Infections
  • Meningococcal Vaccines

abstract

  • Given the high morbidity and mortality associated with meningococcal disease, in 2007 the Advisory Committee of Immunization Practices recommended immunization of all children ages 11-18 with a protein-conjugated meningococcal vaccine. There are limited data on the immunogenicity of this vaccine after allogeneic hematopoietic stem cell transplantation (allo-HCT). Since 2007, we have immunized 48 patients with the MCV4 vaccine. Two vaccinated patients who lacked follow-up titers were excluded from this analysis. Stem cells were derived from an HLA-identical sibling (n = 17) or an alternative donor (n = 29). The median time to vaccination was 2.34 years after allo-HCT. Only 7 patients responded to all 4 serogroups, and 16 patients responded to none of the serogroups. The response to serogroups A, C, Y, and W-135 was 52%, 30%, 46%, and 33%, respectively. The ability to respond to 2 or more serogroups was not affected by age, diagnosis, time to vaccination, or history of graft-versus-host disease. Receipt of a T cell-depleted graft was associated with a poorer response (P = .044). Eight of 16 patients who received a second MCV4 vaccination responded to all 4 serogroups. This retrospective study suggests that response to a single MCV4 vaccination is poor after allo-HCT. Administration of a 2-dose series, as currently recommended for patients with asplenia, complement deficiency, and HIV infection, should be evaluated in this patient population.

publication date

  • January 2012

Research

keywords

  • Academic Article

Identity

Language

  • eng

PubMed Central ID

  • PMC3286795

Digital Object Identifier (DOI)

  • 10.1016/j.bbmt.2011.07.027

PubMed ID

  • 21820392

Additional Document Info

start page

  • 145

end page

  • 9

volume

  • 18

number

  • 1