Publications by authors named "Andrew S Artz"

Despite the success of the CD19xCD3 T cell engager blinatumomab in B-cell acute lymphoblastic leukemia (B-ALL), treatment failure is common and can manifest with antigen loss and extramedullary disease (EMD) relapse. To understand the impact of leukemia genetics on outcomes, we reviewed 267 adult patients with B-ALL treated with blinatumomab and used next generation sequencing to identify molecular alterations. Patients received blinatumomab for relapsed/refractory (R/R) disease (n=150), minimal residual disease (MRD+) (n=88), upfront as induction (n=10), or as consolidation in MRD- state (n=19).

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BCL-2 protein overexpression, common in B-cell acute lymphoblastic leukemia (B-ALL), including the Philadelphia (Ph)-like subtype, mediates leukemic cell survival. We treated 24 patients with 14 days of BCL-2 inhibitor, venetoclax, 400 mg daily (dose level 1) during induction and consolidation cycles combined with the CALGB 10403 regimen in newly diagnosed adults with Ph-negative B-ALL. Median age was 31 (range: 18-53) years, 92% were Hispanic, and 12 (50%) patients had Ph-like ALL.

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Importance: Testosterone deficiency causes mild anemia. Whether testosterone replacement therapy (TRT) can correct anemia or prevent the development of anemia in men with hypogonadism remains incompletely understood.

Objective: To assess the efficacy of TRT in correcting anemia in men with hypogonadism and anemia, and reducing the risk of developing anemia in those without anemia.

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Background: Daily low-dose aspirin increases major bleeding; however, few studies have investigated its effect on iron deficiency and anemia.

Objective: To investigate the effect of low-dose aspirin on incident anemia, hemoglobin, and serum ferritin concentrations.

Design: Post hoc analysis of the ASPREE (ASPirin in Reducing Events in the Elderly) randomized controlled trial.

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Anemia is common in older adults, but often unexplained. Previously, we conducted a randomized, controlled trial of intravenous (IV) iron sucrose to study its impact on the 6-minute walk test and hemoglobin in older adults with unexplained anemia and ferritin levels of 20-200 ng/mL. In this report, we present for the first time the response of hemoglobin, as well as the dynamic response of biomarkers of erythropoiesis and iron indices, in a pooled analysis of the initially IV iron-treated group of 9 subjects and the subsequently IV iron treated 10 subjects from the delayed treatment group.

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Background: The purpose of this study was to examine the association between baseline skeletal muscle measurements, acute toxicity (immune effector cell-associated neurotoxicity syndrome [ICANS], cytokine release syndrome), and treatment efficacy in patients undergoing CAR T-cell therapy for B-lineage lymphoma.

Patients And Methods: Skeletal muscle measurements were obtained from automated CT measurements in 226 consecutive patients who received CAR T-cell therapy between 2015 and 2021. The Kaplan-Meier method was used to examine progression-free survival (PFS) and overall survival (OS) at 1-year.

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With the global growing older adult population, clinicians face the common, yet complex challenge of how to evaluate and manage anemia in this population. Older age predisposes to common causes of anemia such as nutritional deficiencies, inflammatory disorders, chronic kidney disease, and hematologic malignancies. Failure to diagnose and appropriately manage anemia may result in decreased quality of life, impaired cognition, impaired mobility, and increased mortality.

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Clinical performance status is designed to be a measure of overall health, reflecting a patient's physiological reserve and ability to tolerate various forms of therapy. Currently, it is measured by a combination of subjective clinician assessment and patient-reported exercise tolerance in the context of daily living activities. In this study, we assess the feasibility of combining objective data sources and patient-generated health data (PGHD) to improve the accuracy of performance status assessment during routine cancer care.

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Background: Risk of nonrelapse mortality (NRM) after hematopoietic cell transplantation (HCT) is high. Patient-level clinical prediction models such as the HCT-comorbidity index (HCT-CI) help identify those at increased risk for NRM, but the independent contribution of social determinants of health on HCT outcomes is not well characterized.

Methods: This study included 1602 patients who underwent allogeneic HCT between 2013 and 2019 at City of Hope.

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Relapse after allogeneic stem cell transplantation (allo-SCT) remains the primary cause of treatment failure. A second SCT can result in long-term survival in a subset of patients, but the relapse rate remains high. We conducted a single-center, phase 1, modified 3 + 3 dose-escalation study of the feasibility of combining intensity-modulated total marrow irradiation (IM-TMI) with fludarabine and melphalan for conditioning.

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Hematologic malignances are more common and often higher risk in older patients. Allogeneic hematopoietic cell transplantation (alloHCT) best enables long-term disease control for patients with poor risk or relapsed/refractory hematologic malignancies such as acute myeloid leukemia, myelodysplastic syndromes, or myelofibrosis. Rates of alloHCT among older patients, while still relatively low compared with younger patients, have risen sharply over the past decade.

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The in vivo depletion of recipient and donor T lymphocytes using antithymocyte globulin (ATG; Thymoglobulin) is widely adopted in allogeneic hematopoietic stem cell transplantation (HCT) to reduce the incidence of both graft failure and graft-versus-host disease (GVHD). However, excess toxicity to donor lymphocytes may hamper immune reconstitution, compromising antitumor effects and increasing infection. Granulocyte-colony stimulating factor (G-CSF) administered early after HCT may increase ATG-mediated lymphotoxicity.

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With the aging of the population, the number of older adults with hematologic malignancies is growing, and treatment paradigms for these patients are rapidly evolving. Use of allogeneic stem cell transplant has been expanding to include septuagenarians but remains a potentially morbid procedure, creating an opportunity for a geriatric-focused evaluation to improve assessment of the individual's risk in undergoing the procedure. Although age alone should not be the sole determinant for transplant eligibility, geriatric assessment often identifies vulnerabilities that are not captured in assessing performance status and comorbidities alone.

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The incidence and risk factors for severe adverse events (SAEs) in related donors (RD) of hematopoietic cell transplants is unknown. The Related Donor Safe study is a prospective observational cohort of 1680 RDs and represents an opportunity to examine characteristics of SAEs in RDs. In this cohort, we found that SAEs were reported in a total 12 (0.

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Purpose: Impaired response to erythropoietin underlies ineffective erythropoiesis and anemia in myelodysplastic syndromes (MDS). We investigated whether treatment with lenalidomide (LEN), which augments erythropoietin receptor signaling in vitro, can restore and improve hemoglobin response to epoetin (EPO) alfa in patients with lower-risk, non-del(5q) MDS who have anemia that is refractory to or have low probability of benefit from treatment with recombinant erythropoietin.

Methods: In a phase III, US intergroup trial, we randomly assigned patients to receive either LEN and EPO alfa or LEN alone following stratification by serum erythropoietin concentration and prior erythropoietin treatment.

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Article Synopsis
  • Autologous hematopoietic stem cell transplant (autoHCT) is an effective treatment for multiple myeloma and non-Hodgkin lymphoma, but its use is low among older patients; a geriatric assessment (GA) can help tailor treatment approaches for these individuals.
  • The study evaluated 91 patients aged 50+ to provide recommendations on whether to decline, defer, or proceed with autoHCT based on their GA results, finding that recipients generally had fewer impairments and good outcomes after the procedure.
  • Geriatric assessments highlighted that issues like frail grip strength could predict survivability post-autoHCT, suggesting that earlier GA implementation may enhance patient selection and treatment safety.
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Context: Testosterone treatment of hypogonadal men improves their hemoglobin, but the mechanism is not understood.

Objective: To investigate possible mechanisms by which testosterone stimulates erythropoiesis in hypogonadal older men with unexplained or iron-deficiency anemia.

Design: The Anemia Trial of The Testosterone Trials, a placebo-controlled study in older, hypogonadal men.

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Purpose: This Provisional Clinical Opinion update presents a clinically pragmatic approach to hepatitis B virus (HBV) screening and management.

Provisional Clinical Opinion: All patients anticipating systemic anticancer therapy should be tested for HBV by 3 tests-hepatitis B surface antigen (HBsAg), hepatitis B core antibody (anti-HBc) total immunoglobulin (Ig) or IgG, and antibody to hepatitis B surface antigen-but anticancer therapy should not be delayed. Findings of chronic HBV (HBsAg-positive) or past HBV (HBsAg-negative and anti-HBc-positive) infection require HBV reactivation risk assessment.

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In this phase 1 study, azacitidine (AZA) was given before high-dose cytarabine (HiDAC) and mitoxantrone (mito) based on the hypothesis that epigenetic priming with a hypomethylating agent before cytotoxic chemotherapy would improve response rates in patients with high-risk acute myeloid leukemia (AML), including relapsed/refractory disease. The primary objective was to establish the recommended phase 2 dose of AZA given before standard HiDAC/mito. In a dose escalation scheme, 46 patients (median age, 66 years) received AZA at 37.

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Prophylactic donor lymphocyte infusion (pDLI) is a potential intervention to prolong remission for patients receiving allogeneic hematopoietic stem cell transplantation (allo-SCT), however, the optimal timing and dose are unknown. We conducted a prospective trial exploring the feasibility of early withdrawal of immunosuppression (WOI) at day 60 followed by dose escalation of pDLI after alemtuzumab-based, T-cell depleted conditioning for patients with high-risk hematologic malignancies. pDLI were administered at day 75 to day 90 and again in 4-8 week intervals with receipt of up to 5 pDLI infusions.

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Limitations found on geriatric assessment (GA) track with worse outcomes after hematopoietic cell transplantation (HCT). We report on a multidisciplinary team clinic (MDC), consisting of a cancer-specific GA and a multidisciplinary team of providers, to assess candidacy and create an individualized optimization plan for allogeneic HCT candidates aged ≥60 years and autologous HCT and adoptive T-cell therapy candidates aged ≥70 years. Among the 247 patients evaluated in the MDC, allogeneic HCT candidates comprised the majority (60%), followed by autologous HCT (37%) with occasional older cellular therapy candidates (3%).

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We describe a unique ABO compatible and 9/10 HLA-matched case of successful allogeneic hematopoietic cell transplantation (HCT) after effective desensitization of a strong anti-HLA-A24 donor-specific antibody (DSA) with mean fluorescence intensity of approximately 18 000. Due to absence of a suitable matched unrelated donor the patient sibling was considered the best available donor, and it was decided to desensitize patient prior to transplant. The strength of HLA-A24 DSA slowly decreased over the course of treatment, necessitating a total of 23 sessions of therapeutic plasma exchange in order to bring the DSA strength to undetectable levels, followed by a successful transplant.

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