Publications by authors named "Hosing C"

Purpose: More active high-dose chemotherapy (HDC) regimens are needed for autologous stem-cell transplantation (ASCT) for refractory lymphomas. Seeking HDC enhancement with a poly(ADP-ribose) polymerase (PARP) inhibitor, we observed marked synergy between olaparib and vorinostat/gemcitabine/busulfan/melphalan (GemBuMel) against lymphoma cell lines, mediated by inhibition of DNA damage repair. Our preclinical work led us to clinically study olaparib/vorinostat/GemBuMel with ASCT.

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  • - A study compared the outcomes of autologous hematopoietic stem cell transplantation (AHSCT) using unmodified peripheral blood stem cells (PBSC) with maintenance therapy (mycophenolate mofetil) versus a previously studied method that involved CD34+ selected PBSC in patients with diffuse systemic sclerosis (SSc).
  • - In this trial involving 20 high-risk SSc patients, the 5-year overall survival (OS) was estimated at 85%, and event-free survival (EFS) was 75%, indicating promising results with this new approach.
  • - The research highlighted a potential risk factor for poor outcomes in patients undergoing AHSCT: having a low estimated glomerular filtration rate (
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Refractory aggressive lymphomas can be treated with allo-SCT, pursuing a graft-vs-lymphoma effect. While reduced intensity conditioning is safe, tumors often progress rapidly, indicating the need for more active conditioning regimens. The preclinical synergy we saw between gemcitabine (Gem), clofarabine (Clo) and busulfan (Bu) against lymphoma cell lines led us to study Gem/Clo/Bu clinically.

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Patients undergoing immune effector cell therapy (IECT) are at high risk for infections. We assessed seropositivity against pneumococcus, tetanus, and diphtheria in patients before and after IECT and the patients' response to vaccination. We enrolled patients who underwent IECT from January 2020 to March 2022.

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  • The Minnesota acute graft versus host disease (AGVHD) risk score helps categorize newly-diagnosed patients into standard-risk (SR) and high-risk (HR) groups, with about 85% falling into the SR category.
  • A study analyzing 416 patients revealed that those with isolated upper gastrointestinal AGVHD had better recovery rates and lower one-year non-relapse mortality compared to those with lower gastrointestinal AGVHD.
  • Factors such as age, lower GI involvement, and HCT-CI score were significant predictors of one-year non-relapse mortality, indicating the need for tailored risk stratification in clinical trials.
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  • * A study identified 23 patients who maintained a complete remission or stage IA status for over 10 years after being treated for advanced-stage MF/SS, with various treatment strategies leading to positive outcomes.
  • * The most common effective treatments included total skin electron beam (TSEB) therapy followed by allogeneic stem cell transplantation (SCT), radiotherapy, and extracorporeal photopheresis (ECP) combined with long-term antibiotics and immunomodulatory agents.
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Background: CD30 expression is universal in anaplastic large-cell lymphoma and is expressed in some other peripheral T-cell lymphoma subtypes. Incorporation of brentuximab vedotin into initial therapy for people with CD30-positive peripheral T-cell lymphomas prolonged progression-free survival, but there is room for improvement, especially for people with non-anaplastic large-cell lymphoma subtypes.

Methods: We conducted a multicentre, international, single-arm, phase 2 trial to evaluate the safety and activity of CHEP-BV (cyclophosphamide, doxorubicin, prednisone, brentuximab vedotin, and etoposide) followed by brentuximab vedotin consolidation in patients with CD30-expressing peripheral T-cell lymphomas across five academic centres in the USA and Canada.

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  • Introduction of posttransplant cyclophosphamide (PTCy) has greatly improved outcomes for patients undergoing haploidentical stem cell transplantation (haplo-SCT) over the last ten years.
  • A study reviewed outcomes of 335 patients who had their first haplo-SCT between 2009 and 2019, finding that 142 were long-term survivors, achieving a 4-year progression-free survival rate of 94%.
  • Age was the only significant factor affecting long-term survival, with those aged 55 and older having poorer outcomes; late relapses were rare, and most non-relapse deaths were due to secondary cancers or infections.
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Slow platelet recovery frequently occurs after haploidentical hematopoietic stem cell transplantation (haplo-HSCT) with bone marrow graft and post-transplant cyclophosphamide (PCy)-based graft-versus-host disease (GVHD) prophylaxis. Improved platelet recovery may reduce the need for transfusions and improve outcomes. We investigated the safety and efficacy of eltrombopag, a thrombopoietin receptor agonist, at enhancing platelet recovery post-haplo-HSCT.

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Veno-occlusive disease (VOD) is a rare but potentially life-threatening complication after allogeneic hematopoietic stem cell transplantation (allo-SCT). Although increasing awareness and modern transplant techniques have mitigated risk, the interaction of historic risk factors in the current era with posttransplant cyclophosphamide (PTCy) is unknown. We performed a retrospective single-center analysis of adult patients aged ≥18 years undergoing allo-SCT (N = 1561) using predominately PTCy as graft-versus-host disease (GVHD) prophylaxis (72%).

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There is a pressing need for allogeneic chimeric antigen receptor (CAR)-immune cell therapies that are safe, effective and affordable. We conducted a phase 1/2 trial of cord blood-derived natural killer (NK) cells expressing anti-CD19 chimeric antigen receptor and interleukin-15 (CAR19/IL-15) in 37 patients with CD19 B cell malignancies. The primary objectives were safety and efficacy, defined as day 30 overall response (OR).

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Background: There is paucity of data regarding outcomes of children, adolescents and young adults (CAYA) patients with non-Hodgkin lymphoma (NHL) undergoing autologous stem cell transplantation (ASCT).

Methods: Patients aged 0-39 years undergoing first ASCT for NHL at MD Anderson Cancer Center between 2000 and 2020 were analyzed.

Results: Two hundred twenty-one patients were included in the analysis, 129 (58%) were male and the median age was 32 (range 6-39) years.

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Relapse is the major cause of failure of high-dose chemotherapy (HDC) with autologous stem cell transplantation (ASCT) for B cell non-Hodgkin lymphomas (B-NHL). Improvement strategies include use in combination with effective immunotherapies. We hypothesized that the combination of rituximab/HDC/ASCT with expanded cord blood (CB)-derived natural killer (NK) cells is safe and active in B-NHL.

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  • The study looked at how radiation therapy (RT) affects collecting certain blood cells from patients with multiple myeloma (MM) who need a stem cell transplant.
  • Researchers reviewed medical records of 732 patients who underwent RT between 1999 and 2017, focusing on 223 of them who had RT before collecting blood cells for the transplant.
  • They found that the amount of bone marrow treated with RT and the radiation dose didn't seem to impact the number of blood cells that could be collected for the transplant.
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Outcomes of myelofibrosis (MF) with allogeneic stem cell transplantation (allo-SCT) have improved over the past decade, related in part to advances in supportive treatments and conditioning regimens. Several factors are known to predict transplantation outcomes. However, most studies lack homogeneity in conditioning regimens used, limiting their ability to assess prognostic factors on transplantation outcomes.

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Traditional conditioning regimens for patients undergoing allogeneic hematopoietic cell transplantation (allo-HCT) provide suboptimal outcomes, especially for older patients and those with comorbidities. We hypothesized that a fractionated myeloablative busulfan dose delivered over an extended period would reduce nonrelapse mortality (NRM) while retaining antileukemic effects. Here, we performed a phase 2 trial for adults with hematological malignancies receiving matched related or unrelated allo-HCT.

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Primary mediastinal large B-cell lymphoma (PMBCL) is an uncommon, aggressive type of non-Hodgkin lymphoma. Rituximab-containing chemoimmunotherapy with or without radiation therapy (RT) is standard first-line treatment. Relapsed or refractory (R/R) disease has long been treated with salvage chemotherapy followed by high-dose chemotherapy (HDC), with autologous stem cell transplantation (ASCT) in appropriate patients.

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Patients with multiple myeloma (MM) who undergo high-dose chemotherapy and autologous hematopoietic cell transplantation (Auto-HCT) have an increased risk of developing therapy-related myelodysplastic syndrome and acute myeloid leukemia (t-MDS/AML). We retrospectively reviewed the medical records of all MM patients who underwent an Auto-HCT at our institution between 1 January and 31 December 2018 and later developed t-MDS/AML. Among the 2982 patients who underwent at least 1 Auto-HCT, 55 (2%) developed t-MDS/AML (MDS, n = 52; AML, n = 3).

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Hodgkin lymphoma, a hematological malignancy of lymphoid origin that typically arises from germinal-center B cells, has an excellent overall prognosis. However, the treatment of patients who relapse or develop resistant disease still poses a substantial clinical and research challenge, even though current risk-adapted and response-based treatment techniques produce overall survival rates of over 95%. The appearance of late malignancies after the successful cure of primary or relapsed disease continues to be a major concern, mostly because of high survival rates.

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Respiratory inflammation in bronchiolitis obliterans syndrome (BOS) after hematopoietic cell transplantation (HCT) is poorly understood. Clinical criteria for early-stage BOS (stage 0p) often capture HCT recipients without BOS. Measuring respiratory tract inflammation may help identify BOS, particularly early BOS.

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There is paucity of data regarding outcomes of children, adolescents and young adults (CAYA) patients with non-Hodgkin lymphoma (NHL) undergoing autologous hematopoietic stem cell transplantation (ASCT). We analyzed 222 patients aged 0-39 years undergoing first ASCT for NHL between 2000 and 2020. The most common histological subtypes were DLBCL (44%), T-NHL (19%) and PMBCL (19%).

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  • The study assesses the effectiveness of the Enhanced Recovery after Stem-Cell Transplant (ER-SCT) program on survival rates for patients aged 65 and older undergoing hematopoietic stem-cell transplants (HSCT).
  • Results show that patients in the ER-SCT program had a significantly lower nonrelapse mortality (NRM) rate at 1 year (13%) compared to historical controls (26%) and a higher overall survival (OS) rate at 1 year (74% vs. 53%).
  • The findings suggest that multidisciplinary supportive care programs like ER-SCT could enhance outcomes for older adults in HSCT, prompting the need for further randomized studies to explore the specific benefits of different program elements.
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Pulmonary chronic graft-versus-host-disease (cGVHD), or bronchiolitis obliterans syndrome (BOS), is a highly morbid complication of hematopoietic cell transplantation (HCT). The clinical significance of a single instance of pulmonary decline not meeting the criteria for BOS is unclear. We conducted a retrospective analysis in a cohort of patients who had an initial post-HCT decline in the absolute value of forced expiratory volume in 1 second (FEV) of ≥10% or mid-expiratory flow rate of ≥25% but not meeting the criteria for BOS (pre-BOS).

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