Daniel J Weisdorf

Indiana Blood and Marrow Transplantation, Indianapolis, Indiana, United States

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Publications (442)2396.38 Total impact

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    ABSTRACT: Core binding factor acute myelogenous leukemia (CBF AML) constitutes 15% of adult AML and carries an overall good prognosis. CBF AML encodes two recurrent cytogentic abnormalities referred to as t(8;21) and inv (16). The two CBF AML entities are usually grouped together but there is a considerable clinical, pathologic and molecular heterogeneity within this group of diseases. Recent and ongoing studies are addressing the molecular heterogeneity, minimal residual disease and targeted therapies to improve the outcome of CBF AML. In this article, we present a comprehensive review about CBF AML with emphasis on molecular heterogeneity and new therapeutic options.
    American Journal of Hematology 08/2014; · 4.00 Impact Factor
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    ABSTRACT: The National Institutes of Health global score for chronic graft-versus-host disease was devised by experts but was not based on empirical data. We hypothesized that analysis of prospectively collected data would allow derivation of a more accurate model for estimating mortality risk. We analyzed 574 adult patients with chronic graft-versus-host disease enrolled in a multicenter, observational study, using multivariate time-varying analysis accounting for serial changes in severity of eight individual organ sites over time. In the training set, severity of skin, mouth, gastrointestinal tract, liver and lung involvement were independently associated with the risk of nonrelapse mortality. Weighted mortality points were assigned to individual organs based on the hazard ratios and were summed. The population was divided into three risk groups based on the total mortality points. The three new risk groups were validated in an independent validation set, but did not show better discriminative performance than the National Institutes of Health global score. As compared to moderate or mild global score, severe global score was associated with increased risks of nonrelapse and overall mortality across time but not with a decreased risk of recurrent malignancy. The National Institutes of Health global score predicts mortality risk throughout the course of patients with chronic graft-versus-host disease. Further research is required in order to improve outcomes in patients with severe chronic graft-versus-host disease, since their risk of mortality remains elevated.
    Haematologica 07/2014; · 5.94 Impact Factor
  • Shernan G Holtan, Marcelo Pasquini, Daniel J Weisdorf
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    ABSTRACT: Over the past five years, many novel approaches to early diagnosis, prevention, and treatment of acute graft-versus-host disease (aGVHD) have been translated from the bench to the bedside. In this review, we highlight recent discoveries in the context of current aGVHD care. The most significant innovations that have already reached the clinic are prophylaxis strategies based upon a refinement of our understanding of key sensors, effectors, suppressors of the immune alloreactive response and the resultant tissue damage from the aGVHD inflammatory cascade. In the near future, aGVHD prevention and treatment will likely involve multiple modalities, including small molecules regulating immunologic checkpoints, enhancement of suppressor cytokines and cellular subsets, modulation of the microbiota, graft manipulation, and other donor-based prophylaxis strategies. Despite long-term efforts, major challenges in treatment of established aGVHD still remain. Resolution of inflammation and facilitation of rapid immune reconstitution in those with only a limited response to corticosteroids is a research arena that remains rife with opportunity and urgent clinical need.
    Blood 06/2014; · 9.06 Impact Factor
  • Shernan G Holtan, Daniel J Weisdorf
    Blood 06/2014; 123(23):3538-9. · 9.06 Impact Factor
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    ABSTRACT: Although older patients undergoing allogeneic hematopoietic stem cell transplantation (HCT) may experience higher morbidity, the impact of chronic graft-versus-host disease (GVHD) on quality of life (QOL) or survival outcomes for older compared to younger patients is currently unknown. We utilized data of patients with moderate or severe chronic GVHD (N=522, 1661 follow-up visits, a total of 2,183 visits) from the Chronic GVHD Consortium, a prospective observational multicenter cohort. We examined the relationship between age group (adolescent and young adult "AYA" 18-40, "middle-aged" 41-59, and "older" ≥ 60 years) and QOL (FACT-BMT), physical functioning (Human Activity Profile (HAP)), functional status (2-minute walk test (2MWT)), non-relapse mortality and overall survival. Because of multiple testing, p-values <0.01 were considered significant. This study included 115 (22%) AYA, 279 (53%) middle-aged, and 128 (25%) older patients with moderate (58%) or severe (42%) chronic GVHD. Despite more physical limitations in older patients as measured by worse functional status [shorter 2MWT (p<0.001) and lower HAP scores (p<0.001)] relative to AYA and middle-aged patients, older patients reported better QOL [FACT-BMT, p=0.004)] compared to middle-aged patients and similar to AYA patients (p=0.99). Non-relapse mortality and overall survival were similar between the age groups. Therefore, despite higher physical and functional limitations, older patients who are selected to undergo HSCT and survive long enough to develop moderate or severe chronic GVHD have preserved QOL and similar overall survival and non-relapse mortality when compared to younger patients. Therefore, we did not find evidence that older age is associated with worse outcomes in patients with moderate or severe chronic GVHD.
    Biology of blood and marrow transplantation: journal of the American Society for Blood and Marrow Transplantation 05/2014; · 3.15 Impact Factor
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    ABSTRACT: Allogeneic hematopoietic cell transplantation (alloHCT) with reduced intensity conditioning is an appealing option for patients with high risk multiple myeloma (MM). However, progression after alloHCT remains a challenge. Maintenance therapy after alloHCT may offer additional disease control and allow time for a graft-versus-myeloma effect. The primary objective of this clinical trial was to determine the tolerability and safety profile of maintenance lenalidomide (LEN) given on days 1-21 of 28 days cycles, with intra-patient dose escalation during 12 months/cycles after alloHCT. Thirty alloHCT recipients (median age 54 years) with high risk MM were enrolled at 8 centers between 2009 -2012. The median time from alloHCT to LEN initiation was 96 days (66-171 days). Eleven patients (37%) completed maintenance and 10 mg daily was the most commonly delivered dose (44%).Most common reasons for discontinuation were aGVHD (37%) and disease progression (37%). Cumulative incidence of grades III-IV acute GVHD from time of initiation of Len was 17%. . Outcomes at 18 months after initiation of maintenance were MM progression, 28%; transplant related mortality, 11%; and progression-free and overall survival, 63% and 78%, respectively. The use of LEN post alloHCT is feasible at lower doses, although associated with a 38% incidence of aGVHD. Survival outcomes observed in this high risk MM population warrant further study of this approach.
    Biology of blood and marrow transplantation: journal of the American Society for Blood and Marrow Transplantation 04/2014; · 3.15 Impact Factor
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    ABSTRACT: Killer cell Ig-like receptors (KIRs) interact with HLA class I ligands to regulate NK cell development and function. These interactions affect the outcome of unrelated donor hematopoietic cell transplantation (HCT). We have shown previously that donors with KIR B versus KIR A haplotypes improve the clinical outcome for patients with acute myelogenous leukemia by reducing the incidence of leukemic relapse and improving leukemia-free survival (LFS). Both centromeric and telomeric KIR B genes contribute to the effect, but the centromeric genes are dominant. They include the genes encoding inhibitory KIRs that are specific for the C1 and C2 epitopes of HLA-C. We used an expanded cohort of 1532 T cell-replete transplants to examine the interaction between donor KIR B genes and recipient class I HLA KIR ligands. The relapse protection associated with donor KIR B is enhanced in recipients who have one or two C1-bearing HLA-C allotypes, compared with C2 homozygous recipients, with no effect due to donor HLA. The protective interaction between donors with two or more, versus none or one, KIR B motifs and recipient C1 was specific to transplants with class I mismatch at HLA-C (RR of leukemia-free survival, 0.57 [0.40-0.79]; p = 0.001) irrespective of the KIR ligand mismatch status of the transplant. The survival advantage and relapse protection in C1/x recipients compared with C2/C2 recipients was similar irrespective of the particular donor KIR B genes. Understanding the interactions between donor KIR and recipient HLA class I can be used to inform donor selection to improve outcome of unrelated donor hematopoietic cell transplantation for acute myelogenous leukemia.
    The Journal of Immunology 04/2014; · 5.52 Impact Factor
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    ABSTRACT: Because the outcome of allogeneic hematopoietic cell transplantation (HCT) is predominantly influenced by disease type and status, it is essential to be able to stratify patients undergoing HCT by disease risk. The Disease Risk Index (DRI) was developed for this purpose. In the present study, we analyzed 13,131 patients reported to the CIBMTR who underwent HCT between 2008 and 2010. The original DRI stratified patients into 4 groups with 2-year OS ranging from 64% to 24% (p<0.0001 for all pair-wise comparisons between groups), and was the strongest prognostic factor regardless of age, conditioning intensity, graft source, or donor type. A randomly selected training subgroup of 9,849 patients (3/4 of the cohort) was used to refine the DRI, using a multivariable regression model for OS. This refined DRI had improved prediction ability for the remaining 3,282 patients, compared with the original DRI or other existing schemes. This validated and refined DRI can be used as a 4- or 3-group index, depending on the size of the cohort under study, for prognostication, to facilitate the interpretation of single-, multi-center or registry studies, to adjust center outcome data, and to stratify patients entering clinical trials that enroll patients across disease categories.
    Blood 04/2014; · 9.06 Impact Factor
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    ABSTRACT: Haploidentical natural killer (NK) cell infusions can induce remissions in some patients with AML but regulatory T-cell (Treg) suppression may reduce efficacy. We treated 57 refractory AML patients with lymphodepleting cyclophosphamide and fludarabine followed by NK cell infusion and interleukin (IL)-2 administration. In 42 patients, donor NK cell expansion was detected in 10%, whereas in 15 patients receiving host Treg depletion with the IL-2-diphtheria fusion protein (IL2DT) the rate was 27%, with a median absolute count of 1000 NK cells/µL blood. IL2DT was associated with improved complete remission rates at day 28 (53% versus 21%; P=0.02) and disease-free survival at 6 months (33% versus 5%; P<0.01). In the IL2DT cohort, NK cell expansion correlated with higher post-chemotherapy serum IL-15 levels (P=0.002), effective peripheral blood Treg depletion (< 5%) at day 7 (P<0.01) and decreased IL-35 levels at day 14 (P=0.02). In vitro assays demonstrated that Tregs co-cultured with NK cells inhibit their proliferation by competition for IL-2, but not for IL-15. Together with our clinical observations this supports the need to optimize the in vivo cytokine milieu where adoptively transferred NK cells compete with other lymphocytes to improve clinical efficacy in patients with refractory AML. This study is registered at clinicaltrials.gov, identifiers: NCT00274846 and NCT01106950.
    Blood 04/2014; · 9.06 Impact Factor
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    ABSTRACT: To investigate the usefulness of various scales for evaluating joint and fascia manifestations in patients with chronic graft-versus-host disease (GVHD) after allogeneic hematopoietic cell transplantation, and to compare the scales in terms of simplicity of use and ability to yield reliable and clinically meaningful results. In a prospective, multicenter, longitudinal, observational cohort of patients with chronic GVHD (n = 567), we evaluated 3 scales proposed for assessing joint status: the National Institutes of Health (NIH) joint/fascia scale, the Hopkins fascia scale, and the Photographic Range of Motion (P-ROM) scale. Ten other scales were also tested for assessment of symptoms, quality of life, and physical functions. Joint and fascia manifestations were present at study enrollment in 164 (29%) of the patients. Limited range of motion was most frequent at the wrists or fingers. Among the 3 joint assessment scales, changes in the NIH scale correlated with both clinician- and patient-perceived improvement of joint and fascia manifestations, with higher sensitivity than the Hopkins fascia scale. Changes in all 3 scales correlated with clinician- and patient-perceived worsening, but the P-ROM scale was the most sensitive in this regard. Onset of joint and fascia manifestations was not associated with subsequent mortality. Joint and fascia manifestations are common in patients with chronic GVHD and should be assessed carefully in these patients. Our results support the use of the NIH joint/fascia scale and P-ROM scale to assess joint and fascia manifestations. The NIH scale better captures improvement, while the P-ROM scale better captures worsening. The utility of these scales could also be tested in the rheumatic diseases.
    Arthritis & rheumatology (Hoboken, N.J.). 04/2014; 66(4):1044-52.
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    ABSTRACT: To identify favored choice of transplantation in patients with acute promyelocytic leukemia in second complete remission. We studied 294 acute promyelocytic leukemia (APL) patients receiving allogeneic (n=232) or autologous (62) hematopoietic cell transplantation (HCT) in second complete remission (CR2) reported to the Center for International Blood and Marrow Transplantation Research (CIBMTR) from 1995 to 2006 including pre-HCT PML/RAR∝ status in 155 (49% of allogeneic and 66% of autologous). Patient characteristics and transplant characteristics including treatment related mortality, overall survival, and disease free survival were collected and analyzed for both univariate and multivariate outcomes. With median follow-up of 115 (allogeneic) and 72 months (autologous), 5-year disease-free survival (DFS) favored autologous 63% (49-75%) compared to allogeneic 50% (44-57%) (p=0.10) and overall survival (OS) 75% (63-85%) vs. 54% (48-61%) (p=.002) Multivariate analysis showed significantly worse DFS after allogeneic HCT (HR=1.88, 95% CI=1.16-3.06, p=0.011) and age >40 years (HR=2.30, 95% CI 1.44-3.67, p=0.0005). OS was significantly worse after allogeneic HCT (HR=2.66, 95%CI 1.52-4.65, p=0.0006; age >40 (HR=3.29, 95% CI 1.95-5.54, p<0.001) and CR1<12 months (HR=1.56 95% CI 1.07-2.26, p=0.021). Positive pre-HCT PML-RAR∝ status in 17/114 allogeneic and 6/41 autologous transplants did not influence relapse, treatment failure or survival in either group. The survival advantage for autografting was attributable to increased 3 years TRM: allogeneic 30%; autologous 2%, and GVHD. We conclude that autologous HCT yields superior overall survival for APL in CR2. Long term DFS in autologous recipients, even with MRD+ grafts remains an important subject for further study.
    Biology of blood and marrow transplantation: journal of the American Society for Blood and Marrow Transplantation 03/2014; · 3.15 Impact Factor
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    ABSTRACT: Myelodysplastic syndromes (MDS) are stem cell disorders that can progress to acute myeloid leukemia (AML). While hematopoietic cell transplantation (HCT) can be curative, additional therapies are needed for a disease that disproportionally afflicts the elderly. We tested the ability of a CD16xCD33 BiKE to induce natural killer (NK) cell function from 67 MDS patients. Compared to age-matched normal controls, CD7(+) lymphocytes, NK cells, and CD16 expression were markedly decreased in MDS patients. Despite this, reverse-antibody dependent cell-mediated cytotoxicity (R-ADCC) assays showed potent degranulation and cytokine production when resting MDS-NK cells were triggered with an agonistic CD16 mAb. Blood and marrow MDS-NK cells treated with BiKE significantly enhanced degranulation, TNF-α and IFN-γ production against HL-60 and endogenous CD33(+) MDS targets. MDS patients had a significantly increased proportion of immunosuppressive CD33(+) myeloid derived suppressor cells (MDSC) that negatively correlated with MDS lymphocyte populations and CD16 loss on NK cells. Treatment with the CD16xCD33 BiKE successfully reversed MDSC immunosuppression of NK cells and induced MDSC target cell lysis. Lastly, the BiKE induced optimal MDS-NK cell function irrespective of disease stage. Our data suggest that the CD16xCD33 BiKE functions against both CD33(+) MDS and MDSC targets and may be therapeutically beneficial for MDS patients.
    Blood 03/2014; · 9.06 Impact Factor
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    ABSTRACT: Non-Hodgkin lymphomas (NHL) disproportionately affect older patients who uncommonly receive allogeneic hematopoietic cell transplantation (HCT). We analyzed CIBMTR data on 1248 patients ≥40 years receiving reduced-intensity conditioning (RIC) or non-myeloablative (NMA) HCT for aggressive (n=668) and indolent (n=580) NHL. Aggressive lymphoma was more frequent in the oldest cohort [(age 40-54) 49% vs. (55-64) 57% vs. (≥65) 67% p=0.0008]; fewer patients ≥65 had prior autografting [26% vs. 24% vs. 9%; p=0.002)]. Rates of relapse, acute and chronic GVHD and non-relapse mortality (NRM) at one year were similar [22%, 95% confidence interval (CI) 19-26%; 27%, 95% CI 23-31%; 34%, 95% CI 24-44%]. Progression-free (PFS) and overall (OS) survival at 3 years was slightly lower in older cohorts [OS:54%, 95% CI 50-58%; 40%, 95% CI 36-44%; 39%, 95% CI 28-50%; p<0.0001]. Multivariate analysis revealed no significant effect of age on acute or chronic GVHD or relapse. Age ≥55 years, Karnofsky performance status <80, and HLA-mismatch adversely impacted NRM, PFS, and OS. Disease status at HCT, but not histologic subtype, worsened NRM, relapse, PFS and OS. Even for patients ≥55 years, OS still approached 40% at 3 years suggesting HCT effects long-term remissions and remains underutilized in qualified older patients with NHL.
    Biology of blood and marrow transplantation: journal of the American Society for Blood and Marrow Transplantation 03/2014; · 3.15 Impact Factor
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    ABSTRACT: Idiopathic Pneumonia Syndrome (IPS) is a diffuse, non-infectious lung injury that occurs acutely after allogeneic hematopoietic cell transplant (HCT). IPS related mortality has been historically high (>50%) despite treatment with systemic corticosteroids and supportive care measures. The role of TNF inhibition is examined in a randomized, double-blind, placebo controlled trial of corticosteroids with etanercept or placebo. Thirty four subjects (≥ 18 years) with IPS after HCT were randomized to receive methylprednisolone (2 mg/kg/day) plus etanercept (0.4 mg/kg twice weekly x 4 weeks) [n=16] or placebo [n=18]. No active infections and a pathogen-negative bronchoscopy were required at study entry. Response (alive, with complete discontinuation of supplemental oxygen support) and overall survival were examined. This study, originally planned to accrue 120 patients, was terminated prematurely due to slow accrual. In the limited number of patients examined, there were no differences in response rates at day 28 of study. Ten of 16 patients [62.5% (95% CI: 35.4-84.8)] receiving etanercept and 12 of 18 patients [66.7% (95% CI: 41.0-86.7%)] receiving placebo met the day 28 response definition, p=1.00. The median survival was 170 days (95% CI:11-362) with etanercept vs 64 days (95% CI:26-209) with placebo, p=0.51 Among responders, the median time to discontinuation of supplemental oxygen was 9 days (etanercept) vs 7 days (placebo). Therapy was well-tolerated, with one toxicity related death from an infectious pneumonia in the placebo arm. The treatment of IPS with corticosteroids in adult HCT recipients was associated with high early response rates (>60%) compared to historical reports, with poor overall survival. The addition of etanercept did not lead to further increases in response, though the sample size of this truncated trial preclude a definitive conclusion.
    Biology of blood and marrow transplantation: journal of the American Society for Blood and Marrow Transplantation 03/2014; · 3.15 Impact Factor
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    ABSTRACT: We studied AML patients over age 50 in CR1 after adult unrelated donor (URD; n = 441, 8/8 and n = 94 7/8 HLA-matched) or umbilical cord blood (UCB; n = 205) transplantations. UCB recipients less often achieved CR1 within 8 weeks, more often received reduced-intensity conditioning, and cyclosporin-based graft-versus-host disease (GVHD) prophylaxis. Neutrophil recovery was slower in UCB (69% by day 28) vs. 8/8 URD (97%); 7/8 (91%) (p<0.001). Three-year transplant-related mortality (TRM) was higher and leukemia-free survival (LFS) lower with UCB (35% and 28%, respectively) vs. 8/8 URD (27% and 39%). TRM was higher in 7/8 URD (41%, p=0.01), but LFS similar 34% (p=0.39). Three-year chronic GVHD was least in UCB (28%) vs. 53% and 59% in 8/8 and 7/8 URD recipients. Three-year survival was 8/8 URD 43% (95% CI 38-48), UCB 30% (95% CI 23-37) (p=0.002) and 7/8 URD 37% (95% CI 27-46). Allotransplantation for AML in CR1 with any of these grafts extends LFS for over a third of older patients. In the absence of an 8/8 HLA-matched URD or when transplantation is needed urgently, UCB can provide extended survival. Less frequent chronic GVHD with UCB transplantation may be of particular value for older patients.
    Biology of blood and marrow transplantation: journal of the American Society for Blood and Marrow Transplantation 02/2014; · 3.15 Impact Factor
  • 01/2014; 20(2):S28–S29.
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    01/2014; 20(2):S27.
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    ABSTRACT: The 2005 NIH Consensus Conference recommended assessment of lung function in patients with chronic graft-versus-host disease (GVHD) by both pulmonary function tests (PFTs) and assessment of pulmonary symptoms. We tested whether pulmonary measures were associated with non-relapse mortality (NRM), overall survival (OS) and patient reported outcomes (PRO). Clinician and patient-reported data were collected serially in a prospective, multicenter observational study. Available PFT data were abstracted. Cox regression models were fit for outcomes using a time-varying covariate model for lung function measures and adjusting for patient and transplant characteristics and non-lung chronic GVHD severity. A total of 1591 visits (496 patients) were used in this analysis. The NIH symptom-based lung score was associated with NRM (p=0.02), overall survival (p=0.02), patient-reported symptoms (p<0.001) and functional status (p<0.001). Worsening of NIH symptom-based lung score over time was associated with higher NRM and lower survival. All other measures were not associated with OS or NRM, although some were associated with patient-reported lung symptoms. In conclusion, the NIH symptom-based lung symptom score of 0-3 is associated with NRM, OS, and PRO measures in patients with chronic GVHD. Worsening of the NIH symptom-based lung score was associated with increased mortality.
    Biology of blood and marrow transplantation: journal of the American Society for Blood and Marrow Transplantation 12/2013; · 3.15 Impact Factor
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    ABSTRACT: The impact of pre transplant (HCT) cytarabine consolidation therapy on post HCT outcomes has yet to be evaluated after reduced intensity or non-myeloablative conditioning. We analyzed 604 adults with acute myeloid leukemia (AML) in first complete remission (CR1) reported to the CIBMTR who received a RIC or NMA HCT from an HLA-identical sibling, HLA-matched unrelated donor (URD), or umbilical cord blood (UCB) donor in 2000-2010. We compared transplant outcomes based on exposure to cytarabine post remission consolidation. Three year survival rates were 36% (29-43%, 95% CI) in the no consolidation arm and 42% (37-47%, 95% CI) in the cytarabine consolidation arm (p=0.16). Disease free survival was 34% (27-41%, 95% CI) and 41% (35-46%, 95% CI) (p=0.15), respectively. Three year cumulative incidences of relapse were 37% (30-44%, 95% CI) and 38% (33-43%, 95% CI), respectively (p=0.80). Multivariate regression confirmed no effect of consolidation on relapse, DFS and survival. Prior to RIC/NMA HCT, these data suggest pre-HCT consolidation cytarabine does not significantly alter outcomes and support prompt transition to transplant as soon as morphologic CR1 is attained. If HCT is delayed while identifying a donor, our data suggest that consolidation does not increase transplant TRM and is reasonable if required.
    Biology of blood and marrow transplantation: journal of the American Society for Blood and Marrow Transplantation 10/2013; · 3.15 Impact Factor
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    ABSTRACT: Cyclophosphamide combined with total body irradiation (Cy/TBI) or busulfan (BuCy) are the most widely used myeloablative conditioning regimens for allotransplants. Recent data regarding their comparative effectiveness is lacking. We analyzed data from the Center for International Blood and Marrow Transplant Research for 1230 subjects receiving a first hematopoietic cell transplant from a human-leukocyte antigen matched sibling or unrelated donor during years 2000-2006 for acute myeloid leukemia (AML) in first complete remission (CR) after conditioning with Cy/TBI or oral or intravenous (IV) BuCy. Multivariate analysis showed significantly less non-relapse mortality (relative risk [RR]=0.58; 95% confidence interval [CI]:0.39 - 0.86; P=0.007), and relapse after, but not before, 1 year post-transplant (RR=0.23; 95% CI: 0.08 - 0.65; P=0.006), and better leukemia-free survival (RR=0.70; 95% CI: 0.55 - 0.88; P=0.003) and survival (RR=0.68; 95% CI: 0.52 - 0.88; P=0.003) in persons receiving IV, but not oral, Bu compared to TBI. In combination with Cy, IV Bu is associated with superior outcomes compared to TBI in patients with AML in first CR.
    Blood 09/2013; · 9.06 Impact Factor

Publication Stats

16k Citations
2,396.38 Total Impact Points

Institutions

  • 2004–2014
    • Indiana Blood and Marrow Transplantation
      Indianapolis, Indiana, United States
    • Thomas Jefferson University
      Philadelphia, Pennsylvania, United States
  • 1991–2014
    • University of Minnesota Medical Center, Fairview
      Minneapolis, Minnesota, United States
  • 1982–2014
    • University of Minnesota Duluth
      • Medical School
      Duluth, Minnesota, United States
    • University of Connecticut
      • Department of Nutritional Sciences
      Storrs, CT, United States
  • 2013
    • Mayo Foundation for Medical Education and Research
      Rochester, Michigan, United States
    • Hôpital Saint-Louis (Hôpitaux Universitaires Saint-Louis, Laboisière, Fernand-Widal)
      Lutetia Parisorum, Île-de-France, France
    • Michiana Hematology Oncology
      Indiana, Pennsylvania, United States
    • Children's Hospitals and Clinics of Minnesota
      Minneapolis, Minnesota, United States
  • 2010–2013
    • Moffitt Cancer Center
      • Program in Blood and Marrow Transplantation
      Tampa, FL, United States
    • University Hospitals Bristol NHS Foundation Trust
      Bristol, England, United Kingdom
    • CHU Sainte-Justine
      Montréal, Quebec, Canada
  • 2007–2013
    • City of Hope National Medical Center
      • Department of Population Sciences
      Duarte, CA, United States
    • Cincinnati Children's Hospital Medical Center
      Cincinnati, Ohio, United States
    • Northwestern University
      Evanston, Illinois, United States
  • 2002–2013
    • Fred Hutchinson Cancer Research Center
      • Division of Clinical Research
      Seattle, Washington, United States
  • 1989–2013
    • University of Minnesota Twin Cities
      • • Division of Hematology, Oncology and Transplantation
      • • Department of Medicine
      • • Division of Pediatric Infectious Diseases
      • • Department of Pediatrics
      Minneapolis, Minnesota, United States
  • 2012
    • Vanderbilt University
      Nashville, Michigan, United States
  • 2011–2012
    • Children's National Medical Center
      • Division of Blood and Marrow Transplantation
      Washington, Washington, D.C., United States
    • Emory University
      Atlanta, Georgia, United States
    • Roswell Park Cancer Institute
      Buffalo, New York, United States
    • Stanford University
      • Division of Blood and Marrow Transplantation
      Stanford, CA, United States
    • Indiana University-Purdue University Indianapolis
      • Department of Medicine
      Indianapolis, IN, United States
  • 2010–2012
    • University of Toronto
      Toronto, Ontario, Canada
  • 2008–2012
    • University of Michigan
      • Comprehensive Cancer Center
      Ann Arbor, MI, United States
    • British Society of Blood and Marrow Transplantation
      Bristol, England, United Kingdom
  • 2008–2011
    • National Institutes of Health
      • Branch of Experimental Transplantation and Immunology
      Bethesda, MD, United States
  • 2002–2011
    • Dana-Farber Cancer Institute
      • Department of Medical Oncology
      Boston, MA, United States
  • 2003–2010
    • National Cancer Institute (USA)
      • Division of Cancer Epidemiology and Genetics
      Maryland, United States
    • Mayo Clinic - Rochester
      • Department of Hematology
      Rochester, Minnesota, United States
    • Georgetown University
      • Department of Oncology
      Washington, D. C., DC, United States
  • 2009
    • Memorial Sloan-Kettering Cancer Center
      New York City, New York, United States
  • 2003–2009
    • National Marrow Donor Program
      Minneapolis, Minnesota, United States
  • 2006–2007
    • University of Texas MD Anderson Cancer Center
      Houston, Texas, United States
    • The Ohio State University
      Columbus, Ohio, United States
    • Cleveland State University
      Cleveland, Ohio, United States
    • University of Cincinnati
      Cincinnati, Ohio, United States
    • University of Illinois at Chicago
      Chicago, Illinois, United States
    • University of British Columbia - Vancouver
      Vancouver, British Columbia, Canada
  • 1995–2007
    • Medical College of Wisconsin
      • Center for International Blood & Marrow Transplant Research
      Milwaukee, WI, United States
  • 2005
    • University of Nebraska Medical Center
      Omaha, Nebraska, United States
    • National Cancer Institute
      Μπογκοτά, Bogota D.C., Colombia
  • 1988–1994
    • Minnesota Department of Health
      Saint Paul, Minnesota, United States
  • 1981
    • Minneapolis Veterans Affairs Hospital
      Minneapolis, Minnesota, United States