Publications by authors named "Haesook Kim"

Importance: Although sharing care with local oncologists after allogeneic hematopoietic cell transplantation (HCT) has been proposed for patients living far from HCT centers, it is not known whether a shared strategy is safe or improves patient quality of life (QOL).

Objective: To determine the efficacy and safety of sharing follow-up care after HCT between the HCT specialty center and local oncologists.

Design, Setting, And Participants: This was a multicenter collaborative randomized clinical trial of patients undergoing HCT at Dana-Farber Cancer Institute (DFCI)-a high volume HCT center in Boston (Massachusetts)-and 8 local oncology practices.

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  • - Bronchiolitis obliterans syndrome (BOS) is a serious lung condition that can develop after receiving a stem cell transplant, and this study tested the effectiveness of ruxolitinib in treating it.
  • - The trial involved 49 adult participants divided into two groups based on how recently they were diagnosed with BOS; results showed that 27.8% of newly diagnosed patients improved, while 92.3% of those with established BOS maintained stable lung function after treatment.
  • - Overall, ruxolitinib had a lung-specific response rate of 34.7% among all participants with most positive outcomes seen in patients with mild to moderate disease, indicating it could be a beneficial treatment option for BOS
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  • Scientists are studying how certain cell types change during and after cancer treatment to better understand how patients respond to therapies like stem cell transplants.
  • They found that changes in DNA from mitochondria (the cell's energy factory) happen together with changes in the main DNA during cancer relapses after a transplant.
  • By using advanced techniques to analyze these changes, they can distinguish between healthy cells and cancer cells, which could help doctors make better treatment choices in the future.
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  • The study focuses on T cell alloreactivity against minor histocompatibility antigens (mHAgs), which play a crucial role in the success of allogeneic hematopoietic cell transplantation (allo-HCT) by affecting graft-versus-leukemia (GvL) and graft-versus-host disease (GvHD) reactions.
  • A new analytic framework was developed to identify mHAgs by integrating data from whole-exome sequencing, organ-specific expression, and proteome analysis from donor-recipient pairs.
  • The research found that the overall and organ-specific mHAg load in 220 matched D-R pairs could predict the risk of acute and chronic Gv
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  • A study examined the clinical features and outcomes of COVID-19 in children and adolescents with diabetes in South Korea during early 2022.
  • Out of 123 participants, 35 children with diabetes contracted COVID-19, with no significant differences in diabetes type, sex, or other health metrics compared to those without COVID-19.
  • All affected children experienced mild symptoms and managed their illness at home, with unvaccinated children showing a higher incidence of prolonged fevers compared to their vaccinated peers.
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  • The combination of all-trans retinoic acid and anthracyclines has greatly improved acute promyelocytic leukemia (APL) treatment outcomes, particularly in areas without access to arsenic trioxide.
  • Despite these advances, low- and middle-income countries (LMIC) still struggle with high mortality rates during treatment due to inadequate management of complications.
  • A study involving 806 APL patients across several South American countries showed a reduction in induction mortality to 14.6% and an 81% overall survival rate over four years, demonstrating the benefits of international clinical collaboration.
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The use of CD34+ selected stem cell boost (SCB) after allogeneic hematopoietic cell transplant (allo-HCT) has been increasing. Predictors of treatment failure after SCB, both in the context of poor graft function (PGF) or other settings, are not well characterized. We report among the largest single-center retrospective experiences of the use of SCB and evaluate potential predictors of response and outcomes.

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For patients undergoing allogeneic hematopoietic cell transplantation (alloHCT), HLA-matched related donors (MRDs) have traditionally been the preferred donor source. However, as the age of recipients increases, their sibling donors are aging as well. In this study, we investigated whether younger matched unrelated donors (MUDs) might be a better donor source than similarly aged sibling donors for patients age >60 years with acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS).

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The significance of biomarkers in second-line treatment for acute graft-versus-host disease (GVHD) has not been well characterized. We analyzed clinical data and serum samples at the initiation of second-line systemic treatment of acute GVHD from 167 patients from 17 centers of the Mount Sinai Acute GVHD International Consortium (MAGIC) between 2016 and 2021. Sixty-two patients received ruxolitinib-based therapy, whereas 102 received other systemic agents.

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Competing risks data analysis plays a critical role in the evaluation of clinical utility of specific cancer treatments and can inform the development of future treatment approaches. Although competing risks data are ubiquitous in cancer studies, competing risks data are infrequently recognized and competing risks data analysis is not commonly performed. Consequently, efficacy of specific treatments is often incompletely and inaccurately presented and thus study results may be interpreted improperly.

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Disruption of the intestinal microbiome is observed with acute graft-versus-host disease (GVHD) of the lower gastrointestinal (LGI) tract, and fecal microbiota transplantation (FMT) has successfully cured steroid-refractory cases. In this open-label, single-arm, pilot study, third-party, single-donor FMT was administered in combination with systemic corticosteroids to participants with high-risk acute LGI GVHD, with a focus on treatment-naïve cases. Participants were scheduled to receive 1 induction dose (15 capsules per day for 2 consecutive days), followed by 3 weekly maintenance doses, consisting of 15 capsules per dose.

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Introduction: Significant knowledge gaps exist regarding clinicopathological profiling as well as treatment, surveillance, and survival of duodenal neuroendocrine tumors (dNETs).

Methods: We clinicopathologically characterized and identified racial differences among patients with dNETs at a large safety net hospital. Tumor grades were updated based on the World Health Organization 2019 NET classification, and overall survival was determined.

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We conducted a phase 1 trial assessing safety and efficacy of prophylactic maintenance therapy with venetoclax and azacitidine (Ven/Aza) for patients with high-risk myelodysplastic syndromes (MDS)/acute myeloid leukemia (AML) undergoing reduced intensity allogeneic stem cell transplantation (allo-SCT) after Ven and fludarabine/busulfan conditioning (Ven/FluBu2 allo-SCT) with tacrolimus and methotrexate as graft-versus-host disease (GVHD) prophylaxis. Among 27 patients who underwent Ven/FluBu2 allo-SCT (55.6% with prior Ven exposure, and 96% with positive molecular measurable residual disease), 22 received maintenance therapy with Aza 36 mg/m2 intravenously on days 1 to 5, and Ven 400 mg by mouth on days 1 to 14 per assigned dose schedule/level (42-day cycles × 8, or 28-day cycles × 12).

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The majority of patients with chronic graft-versus-host disease (cGVHD) are steroid refractory (SR), creating a need for safe and effective therapies. Subcutaneous low-dose interleukin-2 (LD IL-2), which preferentially expands CD4+ regulatory T cells (Tregs), has been evaluated in 5 clinical trials at our center with partial responses (PR) in ∼50% of adults and 82% of children by week 8. We now report additional real-world experience with LD IL-2 in 15 children and young adults.

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Cytokine release syndrome (CRS) following haploidentical hematopoietic cell transplantation (HCT) resembles CRS after chimeric antigen receptor-T therapy. We conducted this single-center retrospective study to evaluate the association of posthaploidentical HCT CRS with clinical outcomes and immune reconstitution. One hundred sixty-nine patients who underwent haploidentical HCT between 2011 and 2020 were identified.

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The ability of posttransplant cyclophosphamide (PTCY) to facilitate haploidentical transplantation has spurred interest in whether PTCY can improve clinical outcomes in patients with HLA-matched unrelated donors undergoing peripheral blood stem cell transplantation (PBSCT). We investigated our institutional experience using PTCY-based graft-versus-host disease (GVHD) prophylaxis compared with conventional tacrolimus-based regimens. We compared overall survival, progression-free survival (PFS), relapse, nonrelapse mortality, and acute and chronic GVHD in 107 adult patients receiving a PTCY-based regimen vs 463 patients receiving tacrolimus-based regimens for GVHD prophylaxis.

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  • * The research found that 33.4% of patients experienced AKI within 30 days of transplantation, with certain factors like high levels of rapamycin, specific drug combinations, and lower blood albumin and hemoglobin levels significantly increasing the risk.
  • * Additionally, the study evaluated the impact of periengraftment
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Purpose: Isocitrate dehydrogenase 1 (IDH1) mutations occur in 5% to 10% of patients with acute myeloid leukemia (AML). Ivosidenib is an IDH1 inhibitor, approved for use in patients with IDH1-mutated AML.

Patients And Methods: We conducted a multicenter, phase I trial of maintenance ivosidenib following allogeneic hematopoietic cell transplantation (HCT) in patients with IDH1-mutated AML.

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Steroid-refractory chronic graft-versus-host disease (cGVHD) after allogeneic transplant remains a significant cause of morbidity and mortality. Abatacept is a selective costimulation modulator, used for the treatment of rheumatologic diseases, and was recently the first drug to be approved by the US Food and Drug Administration for the prophylaxis of acute graft-versus-host disease. We conducted a phase 2 study to evaluate the efficacy of abatacept in steroid-refractory cGVHD.

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We aimed to elucidate the evolutionary trajectories of gallbladder adenocarcinoma (GBAC) using multi-regional and longitudinal tumor samples. Using whole-exome sequencing data, we constructed phylogenetic trees in each patient and analyzed mutational signatures. A total of 11 patients including 2 rapid autopsy cases were enrolled.

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Chronic graft-versus-host disease (cGVHD) remains a frequent cause of non-relapse morbidity and mortality after allogeneic hematopoietic stem cell transplantation. In our single center trials of low-dose interleukin-2 (LD IL-2), the immunomodulatory properties of regulatory T cells (Tregs) have been harnessed to treat steroid-refractory cGVHD (SR-cGVHD) safely and effectively in adults and children. In these trials, 50-60% of patients showed clinical improvement of their cGVHD manifestations with partial responses at the primary response endpoint of 8-12 weeks.

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