What predicts high risk acute graft-versus-host disease (GVHD) at onset? Identification of those at highest risk by a novel acute GVHD risk score

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Abstract

To define high-risk acute graft-versus-host disease (GVHD) at onset, we examined the initial GVHD stage and grade of 864 patients at the University of Minnesota who received uniform therapy with prednisone 60 mg/m 2 per d. We compared the prognostic utility of the Minnesota (MN; modified from Consensus) versus Center for International Blood and Marrow Transplant Research (CIBMTR) GVHD organ stage-derived grading systems. As neither GVHD grading system optimally predicted outcomes, a novel acute GVHD risk score was devised by combining the MN and CIBMTR systems. Using multiple regression analysis, we could dichotomize patients into high risk (HR, n = 86) acute GVHD with initial grade IIIC, IIID or IVD who were less likely to respond to steroid therapy by day 28 [relative risk (RR), 0·3, P < 0·001] and had a higher risk for transplant-related mortality (RR, 2·0, P < 0·001) than patients with standard risk (SR, initial grade IA-IIIB, n = 778) GVHD. Using this novel acute GVHD Risk Score, HR GVHD is either skin stage 4, lower gastrointestinal (GI) stage 3+, liver stage 3+, or skin stage 3 and lower GI or liver stage 2+ GVHD. Patients with HR acute GVHD have a poor prognosis, require alternative initial therapy and should be the focus of novel therapeutic trials.

Original languageEnglish (US)
Pages (from-to)732-741
Number of pages10
JournalBritish journal of haematology
Volume157
Issue number6
DOIs
StatePublished - Jun 2012

Keywords

  • Acute GVHD
  • Grading system
  • Haematopoietic cell transplantation
  • Prognosis
  • Risk

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