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oai:recercat.cat:2072/4711892025-08-01T20:07:45Zcom_2072_98col_2072_378192

Association of uric acid levels before start of conditioning with mortality after allogeneic hematopoietic stem cell transplantation - a prospective, non-interventional study of the EBMT Transplant Complication Working Party Penack, Olaf Peczynski, Christophe van der Werf, Steffie Finke, Jürgen Ganser, Arnold Schoemans, Helene Pavlu, Jiri Niittyvuopio, Riitta. Schroyens, Wilfried Kaynar, Leylagül Blau, Igor-Wolfgang van der Velden, Walter Sierra, Jorge Cortelezzi, Agostino Wulf, Gerald Turlure, Pascal Rovira, Montserrat Ozkurt, Zubeyde Nur Pascual-Cascon, Maria J. Moreira, Maria C. Clausen, Johannes Greinix, Hildegard Duarte, Rafael F. Basak, Grzegorz Universitat Autònoma de Barcelona Graft vs Host Disease Hematopoietic Stem Cell Transplantation Humans Prospective Studies Retrospective Studies Transplantation Conditioning Transplantation, Homologous Uric Acid ric acid is a danger signal contributing to inflammation. Its relevance to allogeneic stem cell transplantation (alloSCT) derives from preclinical models where the depletion of uric acid led to improved survival and reduced graft-versus-host disease (GvHD). In a clinical pilot trial, peritransplant uric acid depletion reduced acute GvHD incidence. This prospective international multicenter study aimed to investigate the association of uric acid serum levels before start of conditioning with alloSCT outcome. We included patients with acute leukemia, lymphoma or myelodysplastic syndrome receiving a first matched sibling alloSCT from peripheral blood, regardless of conditioning. We compared outcomes between patients with high and low uric acid levels with univariate- and multivariate analysis using a cause-specific Cox model. Twenty centers from 10 countries reported data on 366 alloSCT recipients. There were no significant differences in terms of baseline co-morbidity and disease stage between the high- and low uric acid group. Patients with uric acid levels above median measured before start of conditioning did not significantly differ from the remaining in terms of acute GvHD grades II-IV incidence (Hazard ratio [HR] 1.5, 95% Confidence interval [CI]: 1.0-2.4, P=0.08). However, they had significantly shorter overall survival (HR 2.8, 95% CI: 1.7-4.7, P<0.0001) and progression free survival (HR 1.6, 95% CI: 1.1-2.4, P=0.025). Non-relapse mortality was significantly increased in alloSCT recipients with high uric acid levels (HR 2.7, 95% CI: 1.4-5.0, P=0.003). Finally, the incidence of relapse after alloSCT was increased in patients with higher uric acid levels (HR 1.6, 95% CI: 1.0-2.5, P=0.04). We conclude that high uric acid levels before the start of conditioning correlate with increased mortality after alloSCT. 2020 Article Haematologica ; Vol. 105 Núm. 7 (january 2020), p. 1977-1983 open access Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. https://creativecommons.org/licenses/by-nc/4.0/