Publications by authors named "Zaid Abdel-Rahman"

Article Synopsis
  • Philadelphia-like acute lymphoblastic leukemia (Ph-like ALL) is a high-risk type of B-cell ALL that is difficult to treat effectively with standard therapies, resulting in poor prognoses for patients.
  • A multicenter study analyzed the outcomes of adult patients who underwent allogeneic hematopoietic cell transplantation (HCT) in their first complete remission (CR1) for Ph-like ALL, comparing results to those of Philadelphia chromosome positive ALL (Ph-pos) and other B-cell Philadelphia negative ALL (Ph-neg).
  • The findings indicated that patients with Ph-like ALL had outcomes similar to Ph-neg ALL after HCT, while Ph-pos ALL patients had significantly better survival rates, suggesting that effective second-line therapies in conjunction with HCT
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Background: Chimeric antigen receptor (CAR) T-cell therapy has attracted considerable attention since its recent endorsement by the Food and Drug Administration, as it has emerged as a promising immunotherapeutic modality within the landscape of oncology. This study explores the prognostic utility of [F]Fluorodeoxyglucose positron emission tomography ([F]FDG PET) in lymphoma patients undergoing CAR T-cell therapy. Through meta-analysis, pooled hazard ratio (HR) values were calculated for specific PET metrics in this context.

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Article Synopsis
  • * The findings revealed that AYAs had higher initial disease severity but showed similar responses to treatment with tyrosine kinase inhibitors (TKIs) as older patients.
  • * Although AYAs experienced a shorter event-free survival (EFS), their overall survival (OS) rates were comparable to those of older adults, indicating the need for more research into the unique biology of CML in younger patients.
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Context.—: Unlike B-cell acute lymphoblastic leukemia/lymphoma (ALL/LBL), there have been few therapeutic advances in T-cell ALL (T-ALL)/LBL, an aggressive ALL/LBL subtype.

Objective.

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Article Synopsis
  • - The treatment approach for adults with Philadelphia chromosome positive acute lymphoblastic leukemia (ALL) has evolved significantly over the last 20 years, mainly due to new tyrosine kinase inhibitors and targeted immunotherapies that have improved patient outcomes.
  • - The article reviews various front-line treatment regimens, including both intensive and less intense therapies, as well as potential chemotherapy-free options.
  • - It also covers disease monitoring methods, the importance of allogeneic hematopoietic stem cell transplantation, and the latest advancements in treatment options for patients experiencing relapse.
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Background: Thrombocytopenia is a frequently encountered laboratory abnormality and a common reason for hematology referrals. Workup for thrombocytopenia is not standardized and frequently does not follow an evidence-based algorithm. We conducted a systematic analysis to evaluate the laboratory testing and outcomes of patients evaluated for thrombocytopenia at hematology clinics in a tertiary referral center between 2013 and 2016.

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Chimeric antigen receptor (CAR) T-cell therapy is effective in relapsed/refractory large B-cell lymphoma and results in a unique toxicity profile, namely cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome. The hyper-inflammatory state associated with these toxicities has been suggested to increase the risk of thrombosis. We conducted a retrospective analysis of patients treated with axicabtagene ciloleucel (axi-cel) to assess the rate of thrombosis with axi-cel therapy from the time of CAR T-cell infusion until the end of hospitalization, when performed in the inpatient setting, or up to day +30 when performed in the outpatient setting.

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Gilteritinib is approved for the treatment of relapsed/refractory (R/R) acute myeloid leukemia (AML) with an FLT3-mutation (FLT3 ). However, the gilteritinib phase 3 ADMIRAL study (Perl et al NEJM 2019) was conducted prior to widespread adoption of either midostaurin as a component of standard intensive induction and consolidation or posttransplant FLT3 inhibitor maintenance. We performed a retrospective analysis using data from 11 US centers and where we identified 113 patients who received gilteritinib alone or as combination therapy for the treatment of R/R FLT3 AML.

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We report a comparative analysis of patients with therapy-related acute lymphoblastic leukaemia (tr-ALL) vs de novo ALL. We identified 331 patients with B-ALL; 69 (21%) were classified as tr-ALL. The most common prior malignancies were breast (23·2%) and plasma cell disorders (20·3%).

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Objective/background: Despite the success of chimeric antigen receptor (CAR) T-cell therapy in patients with aggressive non-Hodgkin lymphoma (aNHL), some patients still fail treatment, and their prognosis is dismal.

Methods: We performed a retrospective study of aNHL patients treated with axicabtagene ciloleucel (axi-cel) at two Mayo Clinic centers between 2018 and 2020. We evaluated predictive factors, toxicities, and responses to salvage regimens after CAR T-cell therapy.

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Novel high-risk groups have recently been identified in adult acute lymphoblastic leukemia (ALL), including Philadelphia-like, therapy-related, and measurable residual disease after induction therapy. Furthermore, modern targeted therapies have recently been incorporated into ALL management; rituximab for CD20-positive and blinatumomab for measurable residual disease after induction therapy or relapsed or refractory disease. Allogeneic hematopoietic cell transplantation (allo-HCT) is recommended as consolidation therapy for high-risk ALL; however, its relative benefit for these high-risk groups and after novel therapies is unclear.

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Myeloid sarcoma, also known as chloroma or granulocytic sarcoma is an extramedullary disease process that typically presents in association with acute myeloid leukemia during initial presentation or at relapse. Often associated with cytogenetic mutations, including t(8;21)(q22;q22); , and less frequently with inv(16)(p13.1q22) or t(16;16)(p13.

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Introduction: Hypoalbuminemia is a known adverse prognostic factor in lymphomas. Yet, it is unknown if axicabtagene ciloleucel (axi-cel) overcomes the adverse prognostic impact of hypoalbuminemia in relapsed/refractory large B-cell lymphoma.

Methods: We conducted a retrospective analysis across three Mayo Clinic centers to assess the relationship of hypoalbuminemia (defined as a serum albumin (SA) levels ≤ 3.

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Donor cell leukemia is a very rare cause of relapse after allogeneic hematopoietic cell transplantation (alloHCT). Herein, we describe an unprecedented case of donor cell-derived chronic myelomonocytic leukemia (CMML) presenting seven years after a 51-year-old man received a matched-related alloHCT from his 59-year-old brother for T-cell acute lymphoblastic leukemia.

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Objective/background: Chimeric antigen receptor (CAR) T-cell is an effective therapy in relapsed/refractory large B-cell lymphomas that, due to its unique toxicities, often requires escalation of care to the intensive care unit (ICU) setting. C-reactive protein (CRP) and ferritin are serum inflammatory markers associated with onset and persistence of CAR T-cell-related toxicity.

Methods: We retrospectively analyzed 34 patients treated with axicabtagene ciloleucel (axi-cel) who were divided into two groups: patients requiring admission to the ICU during initial hospitalization (n = 13, 38%) and those who did not (n = 21, 62%).

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A 75-year-old male evaluated for pancytopenia. Abnormal lymphocytes with hairy projections noted on peripheral blood. Bone marrow examination showed diffuse proliferation of CD20+ B-lymphocytes.

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is a nontuberculous mycobacterium shown to cause symptoms similar to pulmonary . Certain strains have been shown to cross-react with the probes used to detect , making this a diagnostic challenge. We present a 56-year-old gentleman who developed signs and symptoms of lung infection with computed tomography scan of the chest showing right lung apex cavitation.

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Molecular studies have shown metformin to have a promising effect in lymphoma; however, there is lack of studies translating this effect into clinical settings. This was a case-control study to assess the clinical effect of metformin in diabetic diffuse large B-cell lymphoma (DLBCL) patients. Case subjects were diabetic on metformin with a new diagnosis of DLBCL.

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