A Personalized Prediction Model for Outcomes after Allogeneic Hematopoietic Cell Transplant in Patients with Myelodysplastic Syndromes.
Publication/Presentation Date
11-1-2020
Abstract
Allogeneic hematopoietic stem cell transplantation (HCT) remains the only potentially curative option for myelodysplastic syndromes (MDS). Mortality after HCT is high, with deaths related to relapse or transplant-related complications. Thus, identifying patients who may or may not benefit from HCT is clinically important. We identified 1514 patients with MDS enrolled in the Center for International Blood and Marrow Transplant Research Registry and had their peripheral blood samples sequenced for the presence of 129 commonly mutated genes in myeloid malignancies. A random survival forest algorithm was used to build the model, and the accuracy of the proposed model was assessed by concordance index. The median age of the entire cohort was 59 years. The most commonly mutated genes were ASXL1(20%), TP53 (19%), DNMT3A (15%), and TET2 (12%). The algorithm identified the following variables prior to HCT that impacted overall survival: age, TP53 mutations, absolute neutrophils count, cytogenetics per International Prognostic Scoring System-Revised, Karnofsky performance status, conditioning regimen, donor age, WBC count, hemoglobin, diagnosis of therapy-related MDS, peripheral blast percentage, mutations in RAS pathway, JAK2 mutation, number of mutations/sample, ZRSR2, and CUX1 mutations. Different variables impacted the risk of relapse post-transplant. The new model can provide survival probability at different time points that are specific (personalized) for a given patient based on the clinical and mutational variables that are listed above. The outcomes' probability at different time points may aid physicians and patients in their decision regarding HCT.
Volume
26
Issue
11
First Page
2139
Last Page
2146
ISSN
1523-6536
Published In/Presented At
Nazha, A., Hu, Z. H., Wang, T., Lindsley, R. C., Abdel-Azim, H., Aljurf, M., Bacher, U., Bashey, A., Cahn, J. Y., Cerny, J., Copelan, E., DeFilipp, Z., Diaz, M. A., Farhadfar, N., Gadalla, S. M., Gale, R. P., George, B., Gergis, U., Grunwald, M. R., Hamilton, B., … Saber, W. (2020). A Personalized Prediction Model for Outcomes after Allogeneic Hematopoietic Cell Transplant in Patients with Myelodysplastic Syndromes. Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation, 26(11), 2139–2146. https://doi.org/10.1016/j.bbmt.2020.08.003
Disciplines
Medicine and Health Sciences
PubMedID
32781289
Department(s)
Department of Medicine, Lehigh Valley Topper Cancer Institute
Document Type
Article