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    Increased overall and bacterial infections following myeloablative allogeneic HCT for patients with AML in CR1

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    Author
    Ustun, C.
    Kim, S.
    Yared, J.A.
    Date
    2019
    Journal
    Blood Advances
    Publisher
    American Society of Hematology
    Type
    Article
    
    Metadata
    Show full item record
    See at
    https://doi.org/10.1182/bloodadvances.2019000226
    Abstract
    Presumably, reduced-intensity/nonmyeloablative conditioning (RIC/NMA) for allogeneic hematopoietic cell transplantation (alloHCT) results in reduced infections compared with myeloablative conditioning (MAC) regimens; however, published evidence is limited. In this Center for International Blood and Marrow Transplant Research study, 1755 patients (aged ≥40 years) with acute myeloid leukemia in first complete remission were evaluated for infections occurring within 100 days after T-cell replete alloHCT. Patients receiving RIC/NMA (n = 777) compared with those receiving MAC (n = 978) were older and underwent transplantation more recently; however, the groups were similar regarding Karnofsky performance score, HCT-comorbidity index, and cytogenetic risk. One or more infections occurred in 1045 (59.5%) patients (MAC, 595 [61%]; RIC/NMA, 450 [58%]; P = .21) by day 100. The median time to initial infection after MAC conditioning occurred earlier (MAC, 15 days [range, <1-99 days]; RIC/NMA, 21 days [range, <1-100 days]; P < .001). Patients receivingMAC were more likely to experience at least 1 bacterial infection by day 100 (MAC, 46% [95% confidence interval (CI), 43-49]; RIC/NMA, 37% [95% CI, 34-41]; P = .0004), whereas at least a single viral infection was more prevalent in the RIC/NMA cohort (MAC, 34% [95% CI, 31-37]; RIC/NMA, 39% [95%CI, 36-42]; P5.046). MAC remained a risk factor for bacterial infections in multivariable analysis (relative risk, 1.44; 95% CI, 1.23-1.67; P < .0001). Moreover, the rate of any infection per patient-days at risk in the first 100 days (infection density) after alloHCTwas greater for the MAC cohort (1.21; 95% CI, 1.11-1.32; P < .0001). RIC/NMA was associated with reduced infections, especially bacterial infections, in the first 100 days after alloHCT.
    Sponsors
    The CIBMTR is supported primarily by Public Health Service Grant/ Cooperative Agreement 5U24CA076518 from the National Cancer Institute, the National Heart, Lung, and Blood Institute, and the National Institute of Allergy and Infectious Diseases of the National Institutes of Health; Grant/Cooperative Agreement 4U10HL069294 from the National Institues of Health, National Heart, Lung, and Blood Institute and National Cancer Institute; contract HHSH250201200016C with the Health Resources and Services Administration (Department of Health and Human Services); and 2 grants (N00014-17-1-2388 and N0014-17-1-2850) from the Office of Naval Research.
    Keyword
    Leukemia, Myeloid, Acute
    Bacterial Infections
    Identifier to cite or link to this item
    https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072110353&doi=10.1182%2fbloodadvances.2019000226&partnerID=40&md5=099129cb36e318234d1f3e1cb27dec16; http://hdl.handle.net/10713/10906
    ae974a485f413a2113503eed53cd6c53
    10.1182/bloodadvances.2019000226
    Scopus Count
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    UMB Open Access Articles 2019

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