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Mark C, Yan AP, Robinson PD, Alexander S, Aitcheson M, Cox S, Gibson P, Johnston DL, Koo A, Seelisch J, Tomlinson D, Dupuis LL, Sung L. Healthcare professional perspectives following implementation of an infection management care pathway for pediatric patients with cancer: a qualitative study. Support Care Cancer 2024; 32:405. [PMID: 38833026 DOI: 10.1007/s00520-024-08612-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024]
Abstract
PURPOSE The Pediatric Oncology Group of Ontario (POGO) supported an effort to implement infection management care pathways based on clinical practice guidelines, to improve the consistency of infection management in pediatric cancer patients. The objective of this qualitative study was to describe the perspective of healthcare professionals (HCPs) following implementation. METHODS Four tertiary pediatric oncology centers in Ontario, Canada, implemented the pathways. We randomly identified three HCPs per group (clinical pharmacists; nurse case managers, educators or practitioners and physician assistants; pediatric oncology fellows; or pediatric oncology staff physicians) per site and invited them to participate in a qualitative interview. One-on-one interviews were conducted remotely, followed by thematic analysis of interview transcripts. RESULTS A total of 66 invitations were extended and 42 HCPs participated. Identified themes were: (1) implementation approach, (2) access and navigation, (3) engagement, (4) concerns, (5) workplace benefits, (6) reception, and (7) provincial harmonization. HCPs preferred in-person implementation strategies over e-mail communication. They identified teaching/educational utility and benefits to non-oncology departments and non-tertiary centers participating in shared care of patients. Other positive aspects related to evidence-based practice, safety, supporting oncology HCPs, and benefits to patients and families. Concerns included need to ensure users applied clinical judgement and loss of autonomy. Provincial harmonization of practice was viewed positively, although potential logistical and institutional cultural barriers were raised. CONCLUSIONS Following infection management care pathway implementation, HCPs described educational utility and benefits to non-oncology departments, oncology HCPs, patients, and families. Our findings may facilitate future infection management care pathway provincial harmonization.
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Affiliation(s)
- Catherine Mark
- Division of Haematology/Oncology, The Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - Adam P Yan
- Division of Haematology/Oncology, The Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - Paula D Robinson
- Pediatric Oncology Group of Ontario, 480 University Ave, Suite 1014, Toronto, ON, M5G 1V2, Canada
| | - Sarah Alexander
- Division of Haematology/Oncology, The Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - Michaila Aitcheson
- Division of Hematology/Oncology, Children's Hospital London Health Sciences Centre, 800 Commissioners Rd E, London, ON, N6A 5W9, Canada
| | - Stephanie Cox
- Division of Haematology/Oncology, McMaster Children's Hospital, Hamilton Health Sciences Centre, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
| | - Paul Gibson
- Pediatric Oncology Group of Ontario, 480 University Ave, Suite 1014, Toronto, ON, M5G 1V2, Canada
- Division of Haematology/Oncology, McMaster Children's Hospital, Hamilton Health Sciences Centre, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
| | - Donna L Johnston
- Division of Hematology/Oncology, Children's Hospital of Eastern Ontario, 401 Smyth Rd, Ottawa, ON, K1H 8L1, Canada
| | - Alicia Koo
- Department of Pharmacy, The Hospital for Sick Children and Leslie Dan Faculty of Pharmacy, University of Toronto, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
| | - Jennifer Seelisch
- Division of Hematology/Oncology, Children's Hospital London Health Sciences Centre, 800 Commissioners Rd E, London, ON, N6A 5W9, Canada
| | - Deborah Tomlinson
- Child Health Evaluative Sciences, The Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - L Lee Dupuis
- Department of Pharmacy, The Hospital for Sick Children and Leslie Dan Faculty of Pharmacy, University of Toronto, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
- Child Health Evaluative Sciences, The Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - Lillian Sung
- Division of Haematology/Oncology, The Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada.
- Child Health Evaluative Sciences, The Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada.
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Cirves EP, Vargas A, Wheeler EE, Leach JK, Gonzalez-Fernandez T, Simon SI. Neutrophil Granulopoiesis Optimized Through Ex Vivo Expansion of Hematopoietic Progenitors in Engineered 3D Gelatin Methacrylate Hydrogels. Adv Healthc Mater 2024; 13:e2301966. [PMID: 38345178 PMCID: PMC11144100 DOI: 10.1002/adhm.202301966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 02/07/2024] [Indexed: 02/27/2024]
Abstract
Neutrophils are the first line of defense of the innate immune system. In response to methicillin-resistant Staphylococcus aureus infection in the skin, hematopoietic stem, and progenitor cells (HSPCs) traffic to wounds and undergo extramedullary granulopoiesis, producing neutrophils necessary to resolve the infection. This prompted the engineering of a gelatin methacrylate (GelMA) hydrogel that encapsulates HSPCs within a matrix amenable to subcutaneous delivery. The authors study the influence of hydrogel mechanical properties to produce an artificial niche for granulocyte-monocyte progenitors (GMPs) to efficiently expand into functional neutrophils that can populate infected tissue. Lin-cKIT+ HSPCs, harvested from fluorescent neutrophil reporter mice, are encapsulated in GelMA hydrogels of varying polymer concentration and UV-crosslinked to produce HSPC-laden gels of specific stiffness and mesh sizes. Softer 5% GelMA gels yield the most viable progenitors and effective cell-matrix interactions. Compared to suspension culture, 5% GelMA results in a twofold expansion of mature neutrophils that retain antimicrobial functions including degranulation, phagocytosis, and ROS production. When implanted dermally in C57BL/6J mice, luciferase-expressing neutrophils expanded in GelMA hydrogels are visualized at the site of implantation for over 5 days. They demonstrate the potential of GelMA hydrogels for delivering HSPCs directly to the site of skin infection to promote local granulopoiesis.
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Affiliation(s)
- Evan P. Cirves
- Department of Biomedical Engineering, University of California at Davis, Davis, CA, Address: 451 East Health Sciences Drive, 2303 GBSF, Davis, CA 95616
| | - Alex Vargas
- Department of Biomedical Engineering, University of California at Davis, Davis, CA
| | - Erika E. Wheeler
- Department of Orthopaedic Surgery, UC Davis Health, Sacramento, CA and Department of Biomedical Engineering, University of California at Davis, Davis, CA, Address: 4860 Y Street, Suite 3800, Sacramento, CA, 95817
| | - J. Kent Leach
- Department of Orthopaedic Surgery, UC Davis Health, Sacramento, CA, Address: 4860 Y Street, Suite 3800, Sacramento, CA, 95817
| | - Tomas Gonzalez-Fernandez
- Department of Bioengineering, Lehigh University, Bethlehem, PA., Address: 124 E Morton Street, Health Science and Technology Building, Bethlehem, PA 18015
| | - Scott I. Simon
- Department of Biomedical Engineering and Dermatology, University of California at Davis, Davis, CA
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Du J, Yuan X. Analysis of the incidence, characteristics, and risk factors of complications during induction chemotherapy in children with high-risk neuroblastoma. Eur J Pediatr 2024; 183:185-202. [PMID: 37855927 DOI: 10.1007/s00431-023-05273-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 09/25/2023] [Accepted: 10/08/2023] [Indexed: 10/20/2023]
Abstract
Patients with high-risk neuroblastoma (HR-NB) exhibit suboptimal 5-year survival rates, leading to a widespread international preference for high-intensity chemotherapeutic regimens in these children. We analyzed the incidence and risk factors for complications during induction chemotherapy in children with HR-NB and tried to assist clinicians in predicting such complications and optimizing therapeutic strategy. The clinical data of children with HR-NB admitted to our hospital from January 2007 to December 2019 were retrospectively analyzed. The incidence, characteristics, and risk factors of complications (infection, hemorrhage, and chemotherapy-related adverse reactions (CRAR)) requiring hospitalization during induction chemotherapy in these children were explored. (1) A total of 108 patients with HR-NB were included in the final analysis. The overall infection rate was 92.6% (100/108), with the highest incidence of 71.3% observed during the first cycle. FN, bacterial infection, as well as fungal infection were common infectious complications in children with HR-NB during induction chemotherapy. (2) The overall hemorrhage rate was 24.1% (26/108), with the highest incidence of 14.8% also observed in the first cycle. Among the children with hemorrhage, there were 72% with bone marrow involved, while 65.0% of them had a high vanillylmandelic acid (VMA) value. And children with hemorrhage also exhibited neuron-specific enolase (NSE) ≥ 200 µg/L in 88.5% of cases and lactic dehydrogenase (LDH) ≥ 1000U/L in 73.1% of cases. (3) The incidence of CRAR rate was 100%, and 99.1% (107/108) patients experienced myelosuppression. The incidence of myelosuppression peaked in the third cycle, reaching up to 85.2%. Most children suffered severe myelosuppression existed with bone marrow metastases (76.3%), abnormal VMA (67.5%), and LDH ≥ 1000 U/L (60%). (4) Non-myelosuppressive adverse effects were observed in 75.9% children (82/108), with the highest incidence occurring in the third cycle at 42.6%. (5) Patients who experienced three types of complications had a lower median survival time (MST) of 54.4 months, a 3-year event-free survival (EFS) rate of (44.2 ± 10.7)%, and a 3-year overall survival (OS) rate of (75.8 ± 8.6)%, in comparison to those with only one or two complications, who had a higher MST of 59.5 months, a 3-year EFS rate of (73.5 ± 5.2)% (X2 = 10.457, P = 0.001), and a 3-year OS rate of (84.8 ± 4.1)% (X2 = 10.511, P = 0.001). CONCLUSION The presence of bone marrow involved and increased VMA were high-risk factors for infection, while NSE ≥ 200 µg/L and LDH ≥ 1000 U/L were high-risk factors for hemorrhage. For those children who had experienced severe myelosuppression, the presence of bone marrow metastases, increased VMA, and LDH ≥ 1000 U/L were their risk factors. The presence of bone involvement was a high-risk factor for children to have non-myelosuppressive adverse effects. Complications that arise during induction chemotherapy could negatively impact the children's prognosis and overall quality of life. WHAT IS KNOWN • The high-risk neuroblastoma (HR-NB) had a worse prognosis; there was a general international preference for high-intensity chemotherapeutic regimens in the induction phase to these children. WHAT IS NEW • We analyzed the incidence and risk factors of complications during induction chemotherapy in children with HR-NB and tried to help clinicians predict such complications and adopt optimized therapeutic strategy.
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Affiliation(s)
- Jiaxi Du
- Department of Pediatric Hematology/Oncology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaojun Yuan
- Department of Pediatric Hematology/Oncology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Amiri Khosroshahi R, Barkhordar M, Talebi S, Imani H, Sadeghi E, Mousavi SA, Mohammadi H. The impact of malnutrition on mortality and complications of hematopoietic stem cell transplantation in patients with acute leukemia. Clin Nutr 2023; 42:2520-2527. [PMID: 37925779 DOI: 10.1016/j.clnu.2023.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND & AIMS Malnutrition is common in hematopoietic stem cell transplantation (HSCT) patients. However, there are few studies on the association between malnutrition and post-transplant outcomes, with inconsistent results. No standard screening tool has been established for malnutrition in these patients. Previous research suggests the Global Leadership Initiative on Malnutrition (GLIM) criteria is effective in predicting outcomes in other cancers. This study investigates the link between malnutrition based on the GLIM criteria with mortality and complications following allogeneic HSCT. METHODS This single-center, observational, longitudinal, and prospective study of 98 adult leukemia patients at the Hematology Center of Shariati Hospital in Tehran, Iran, monitored patients before transplantation until 100 days after the procedure, focusing on overall survival and mortality as a primary outcome, and secondary endpoints including oral mucositis, acute GVHD, infection during hospitalization, and readmission rates. RESULTS This study involved 98 allogeneic HSCT patients with a median age of 38 years old, 64.3 % with acute myeloid leukemia (AML), and 35.7 % with acute lymphoblastic leukemia (ALL). Among them, 26.5 % were categorized as malnourished based on GLIM criteria. During 100 days of follow-up, 13 patients died, but there was no significant difference in overall survival and mortality between malnourished and well-nourished patients. Malnourished patients demonstrated a noticeable upward trend in the incidence of oral mucositis, hospital readmission, and infection during their hospitalization. It is important to highlight that although this observed trend is discernible, it did not attain statistical significance in statistical analyses (P > 0.05). CONCLUSION The current study determined that, when assessed using the GLIM criteria, malnutrition did not exert a statistically significant influence on survival, mortality, or complications within the specified age range of 18-55 years, underscoring its limited impact on this cohort of younger patients.
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Affiliation(s)
- Reza Amiri Khosroshahi
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Barkhordar
- Hematology, Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran; Cell Therapy and Hematopoietic Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Sepide Talebi
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Imani
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Erfan Sadeghi
- Department of Biostatistics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Asadollah Mousavi
- Hematology, Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran; Cell Therapy and Hematopoietic Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamed Mohammadi
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
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Krizsán S, Péterffy B, Egyed B, Nagy T, Sebestyén E, Hegyi LL, Jakab Z, Erdélyi DJ, Müller J, Péter G, Csanádi K, Kállay K, Kriván G, Barna G, Bedics G, Haltrich I, Ottóffy G, Csernus K, Vojcek Á, Tiszlavicz LG, Gábor KM, Kelemen Á, Hauser P, Gaál Z, Szegedi I, Ujfalusi A, Kajtár B, Kiss C, Matolcsy A, Tímár B, Kovács G, Alpár D, Bödör C. Next-Generation Sequencing-Based Genomic Profiling of Children with Acute Myeloid Leukemia. J Mol Diagn 2023; 25:555-568. [PMID: 37088137 PMCID: PMC10435843 DOI: 10.1016/j.jmoldx.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 02/11/2023] [Accepted: 04/05/2023] [Indexed: 04/25/2023] Open
Abstract
Pediatric acute myeloid leukemia (AML) represents a major cause of childhood leukemic mortality, with only a limited number of studies investigating the molecular landscape of the disease. Here, we present an integrative analysis of cytogenetic and molecular profiles of 75 patients with pediatric AML from a multicentric, real-world patient cohort treated according to AML Berlin-Frankfurt-Münster protocols. Targeted next-generation sequencing of 54 genes revealed 17 genes that were recurrently mutated in >5% of patients. Considerable differences were observed in the mutational profiles compared with previous studies, as BCORL1, CUX1, KDM6A, PHF6, and STAG2 mutations were detected at a higher frequency than previously reported, whereas KIT, NRAS, and KRAS were less frequently mutated. Our study identified novel recurrent mutations at diagnosis in the BCORL1 gene in 9% of the patients. Tumor suppressor gene (PHF6, TP53, and WT1) mutations were found to be associated with induction failure and shorter event-free survival, suggesting important roles of these alterations in resistance to therapy and disease progression. Comparison of the mutational landscape at diagnosis and relapse revealed an enrichment of mutations in tumor suppressor genes (16.2% versus 44.4%) and transcription factors (35.1% versus 55.6%) at relapse. Our findings shed further light on the heterogeneity of pediatric AML and identify previously unappreciated alterations that may lead to improved molecular characterization and risk stratification of pediatric AML.
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Affiliation(s)
- Szilvia Krizsán
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary; Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Borbála Péterffy
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Bálint Egyed
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary; Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Tibor Nagy
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary; Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Endre Sebestyén
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Lajos László Hegyi
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Zsuzsanna Jakab
- Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Dániel J Erdélyi
- Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Judit Müller
- Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - György Péter
- Hemato-Oncology Unit, Heim Pal Children's Hospital, Budapest, Hungary
| | - Krisztina Csanádi
- Hemato-Oncology Unit, Heim Pal Children's Hospital, Budapest, Hungary
| | - Krisztián Kállay
- Division of Pediatric Hematology and Stem Cell Transplantation, Central Hospital of Southern Pest, National Institute of Hematology and Infectious Diseases, Budapest, Hungary
| | - Gergely Kriván
- Division of Pediatric Hematology and Stem Cell Transplantation, Central Hospital of Southern Pest, National Institute of Hematology and Infectious Diseases, Budapest, Hungary
| | - Gábor Barna
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Gábor Bedics
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Irén Haltrich
- Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Gábor Ottóffy
- Department of Pediatrics, University of Pécs Clinical Centre, Pécs, Hungary
| | - Katalin Csernus
- Department of Pediatrics, University of Pécs Clinical Centre, Pécs, Hungary
| | - Ágnes Vojcek
- Department of Pediatrics, University of Pécs Clinical Centre, Pécs, Hungary
| | - Lilla Györgyi Tiszlavicz
- Department of Pediatrics and Pediatric Health Care Center, University of Szeged, Szeged, Hungary
| | - Krisztina Mita Gábor
- Department of Pediatrics and Pediatric Health Care Center, University of Szeged, Szeged, Hungary
| | - Ágnes Kelemen
- Hemato-Oncology and Stem Cell Transplantation Unit, Velkey László Child's Health Center, Borsod-Abaúj-Zemplén County Central Hospital and University Teaching Hospital, Miskolc, Hungary
| | - Péter Hauser
- Hemato-Oncology and Stem Cell Transplantation Unit, Velkey László Child's Health Center, Borsod-Abaúj-Zemplén County Central Hospital and University Teaching Hospital, Miskolc, Hungary
| | - Zsuzsanna Gaál
- Department of Pediatric Hematology and Oncology, Institute of Pediatrics, University of Debrecen, Debrecen, Hungary
| | - István Szegedi
- Department of Pediatric Hematology and Oncology, Institute of Pediatrics, University of Debrecen, Debrecen, Hungary
| | - Anikó Ujfalusi
- Department of Laboratory Medicine, University of Debrecen, Debrecen, Hungary
| | - Béla Kajtár
- Department of Pathology, University of Pécs Clinical Centre, Pécs, Hungary
| | - Csongor Kiss
- Hemato-Oncology and Stem Cell Transplantation Unit, Velkey László Child's Health Center, Borsod-Abaúj-Zemplén County Central Hospital and University Teaching Hospital, Miskolc, Hungary
| | - András Matolcsy
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary; Division of Pathology, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Botond Tímár
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Gábor Kovács
- Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Donát Alpár
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Csaba Bödör
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.
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Central-line-associated bloodstream infections and central-line-associated non-CLABSI complications among pediatric oncology patients. Infect Control Hosp Epidemiol 2023; 44:377-383. [PMID: 35475427 PMCID: PMC10015264 DOI: 10.1017/ice.2022.91] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To assess central venous catheter (CVC) harm in pediatric oncology patients, we explored risks for central-line-associated bloodstream infections (CLABSIs) and central-line-associated non-CLABSI complications (CLANCs). DESIGN Retrospective cohort study. SETTING Midwestern US pediatric oncology program. PATIENTS The study cohort comprised 592 pediatric oncology patients seen between 2006 and 2016. METHODS CLABSIs were defined according to Centers for Disease Control and Prevention (CDC)/National Health Safety Network (NHSN) definitions. CLANCs were classified using a novel definition requiring CVC removal. Patient-level and central-line-level risks were calculated using a negative binomial model to adjust for correlations between total events and line numbers. RESULTS CVCs were inserted in 62% of patients, with 175,937 total catheter days. The inpatient CLABSI and CLANC rates were 5.8 and 8.5 times higher than outpatient rates. At the patient level, shared risks included acute myeloid leukemia (AML) and age <1 year at diagnosis. At the line level, shared risks included age <1 year at diagnosis, non-mediports, and >1 lumen. AML was a CLABSI-specific risk. CLANC-specific risks included non-brain-tumor diagnosis, younger age at diagnosis or central-line placement, and age <1 year at diagnosis or line placement. Multivariable risks were for CLABSI >1 lumen and for CLANC age <1 year at placement. CONCLUSIONS Among patients with CVCs, CLABSI and CLANC rates were similar, higher among inpatients than outpatients. For both CLABSIs and CLANCs, infants and patients with AML were at higher risk. In both univariate and multivariate models, lines with >1 lumen were associated with CLABSIs and placement during infancy with CLANCs.
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Creating and adapting an infection management care pathway in pediatric oncology. Support Care Cancer 2022; 30:7923-7934. [PMID: 35731317 DOI: 10.1007/s00520-022-07216-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 06/09/2022] [Indexed: 10/17/2022]
Abstract
PURPOSE While care pathways based upon clinical practice guidelines (CPGs) are important, little is known about optimal approaches to development and adaptation in pediatric oncology. Objectives were to develop care pathway templates for pediatric cancer supportive care that are based upon CPGs and to adapt an infection management care pathway for use at a single institution. METHODS Study phases were as follows: (1) creation of care pathway templates across multiple supportive care topics; (2) refinement of the infection management care pathway template by interviewing pediatric oncology clinicians at a single institution; and (3) adaptation of the infection management care pathway template for use at a different institution. RESULTS Informed by seven CPGs, an initial iteration of the infection management care pathway template was created. This template was then refined based upon 20 interviews with pediatric oncology clinicians. Adaptation of the infection management care pathway template for use at a different institution required many changes to improve its clinical usability. Specificity and additional information not considered by the source CPGs were incorporated. CONCLUSION We developed a process to create care pathway templates across multiple supportive care topics in pediatric oncology and to refine and adapt the infection management care pathway. While we found that the process was feasible, we also identified the need to substantially modify the care pathway during the adaptation process to consider scenarios not addressed by the source CPGs. Future work should measure implementation success.
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Villeneuve S, Aftandilian C. Neutropenia and Infection Prophylaxis in Childhood Cancer. Curr Oncol Rep 2022; 24:671-686. [PMID: 35230594 PMCID: PMC8885776 DOI: 10.1007/s11912-022-01192-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/27/2021] [Indexed: 11/03/2022]
Abstract
PURPOSE OF REVIEW Pediatric oncology patients frequently experience episodes of prolonged neutropenia which puts them at high risk for infection with significant morbidity and mortality. Here, we review the data on infection prophylaxis with a focus on both pharmacologic and ancillary interventions. This review does not include patients receiving hematopoietic stem cell transplantation. RECENT FINDINGS Patients with hematologic malignancies are at highest risk for infection. Bacterial and fungal prophylaxis decrease the risk of infection in certain high-risk groups. Ancillary measures such as ethanol locks, chlorhexidine gluconate baths, GCSF, IVIG, and mandatory hospitalization do not have enough data to support routine use. There is limited data on risk of infection and role of prophylaxis in patients receiving immunotherapy and patients with solid tumors. Patients with Down syndrome and adolescent and young adult patients may benefit from additional supportive care measures and protocol modifications. Consider utilizing bacterial and fungal prophylaxis in patients with acute myeloid leukemia or relapsed acute lymphoblastic leukemia. More research is needed to evaluate other supportive care measures and the role of prophylaxis in patients receiving immunotherapy.
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Affiliation(s)
- Stephanie Villeneuve
- Paediatric Haemotology/Oncology, Dalhousie University and the IWK Health Centre, 5850/5980 University Avenue, Halifax, NS, B3K 6R8, Canada
| | - Catherine Aftandilian
- Pediatric Hematology/Oncology, Stanford University, 1000 Welch Rd, Palo Alto, CA, 94304, USA.
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van de Velde ME, El Hassani SEM, Kaspers GJL, Broertjes J, Benninga MA, de Boer NKH, Budding AE, de Meij TGJ. Prediction of Bloodstream Infection in Pediatric Acute Leukemia by Microbiota and Volatile Organic Compounds Analysis. J Pediatr Hematol Oncol 2022; 44:e152-e159. [PMID: 34133377 DOI: 10.1097/mph.0000000000002210] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 03/28/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Bloodstream infections (BSIs) cause treatment-related mortality in pediatric acute leukemia. We explored the potential of intestinal microbiota and fecal volatile organic compounds (VOCs) analyses to predict BSI. METHODS In this case-control study, fecal samples of pediatric acute leukemia patients were collected. Microbiota composition and fecal VOC profiles of BSI cases and matched non-BSI controls were compared. RESULTS In total, 6 patients were included, of which 1 developed BSI and 1 neutropenic fever. Both showed reduced microbial diversity and stability of Bacteroidetes. In the BSI case, Pantoea was identified 15 days before BSI. Significant differences in fecal VOC profiles were measured between the case and controls. CONCLUSION Microbiota and fecal VOC could serve as biomarkers to predict BSI in pediatric leukemia.
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Affiliation(s)
| | - Sofia El Manouni El Hassani
- Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam
- Department of Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam
| | - Gert Jan L Kaspers
- Departments of Pediatric Oncology
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Jorrit Broertjes
- Department of Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam
| | - Marc A Benninga
- Department of Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam
| | - Nanne K H de Boer
- Department of Gastroenterology and Hepatology, Amsterdam UMC, Vrije Universiteit Amsterdam, AG&M Research Institute
| | | | - Tim G J de Meij
- Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam
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10
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Castellanos MI, Dongarwar D, Wanser R, Caceres I, Park C, Rodriguez J, Salihu HM. In-hospital Mortality and Racial Disparity in Children and Adolescents With Acute Myeloid Leukemia: A Population-based Study. J Pediatr Hematol Oncol 2022; 44:e114-e122. [PMID: 34001781 DOI: 10.1097/mph.0000000000002204] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 04/09/2021] [Indexed: 11/26/2022]
Abstract
Survival disparities in children and adolescents with acute myeloid leukemia (AML) are documented, however, the etiology of these disparities is understudied. Few studies have evaluated factors that predict in-hospital mortality in childhood AML and racial/ethnic disparities associated with in-hospital death. Our study aimed to investigate factors associated with the risk of in-hospital death among childhood AML hospitalizations. We conducted a retrospective study of childhood AML hospitalizations using the National Inpatient Sample (NIS) from 2003 to 2017. We estimated incidences of in-hospital death among AML hospitalizations. We performed survey logistic regression models to measure the association between patient and hospital characteristics and in-hospital mortality. We identified 71,050 hospitalizations of children with AML. Compared with non-Hispanic (NH) whites, NH-black children had a higher risk of in-hospital mortality (adjusted odds ratio: 1.41, 95% confidence interval: 1.06-1.87, P<0.02). Further, NH-black patients with hematopoietic stem cell transplant experienced the highest risk of mortality (adjusted odds ratio: 5.88, 95% confidence interval: 3.13-11.06, P<0.001) as compared with NH-black children who did not receive hematopoietic stem cell transplant. Our findings highlight that NH-black children with AML continue to experience a disproportionately higher likelihood of in-hospital mortality when compared with their NH-white counterparts. Further studies are needed to delineate the etiology of these disparities.
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Affiliation(s)
| | - Deepa Dongarwar
- Center of Excellence in Health Equity, Training, and Research
| | - Rachelle Wanser
- Center of Excellence in Health Equity, Training, and Research
| | - Ibeth Caceres
- Center of Excellence in Health Equity, Training, and Research
| | - Charles Park
- Center of Excellence in Health Equity, Training, and Research
| | | | - Hamisu M Salihu
- Center of Excellence in Health Equity, Training, and Research
- Department of Family and Community Medicine, Baylor College of Medicine, Houston, TX
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11
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Haeusler GM, Ammann RA, Carlesse F, Groll AH, Averbuch D, Castagnola E, Agyeman PK, Phillips B, Gilli F, Solopova G, Attarbaschi A, Wegehaupt O, Speckmann C, Sung L, Lehrnbecher T. SARS-CoV-2 in children with cancer or after haematopoietic stem cell transplant: An analysis of 131 patients. Eur J Cancer 2021; 159:78-86. [PMID: 34736044 PMCID: PMC8501219 DOI: 10.1016/j.ejca.2021.09.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/15/2021] [Accepted: 09/22/2021] [Indexed: 12/14/2022]
Abstract
PURPOSE There are limited data on SARS-CoV-2 (COVID-19) infection in children with cancer or after haematopoietic stem cell transplant (HSCT). We describe the severity and outcomes of SARS-COV-2 in these patients and identify factors associated with severe disease. METHODS This was a multinational, observational study of children (aged <19 years) with cancer or HSCT and SARS-CoV-2 confirmed by polymerase chain reaction. COVID-19 was classified as asymptomatic, mild, moderate, severe or critical (≥1 organ support). Exact polytomous regression was used to determine the relationship between clinical variables and disease severity. RESULTS One hundred and thirty-one patients with COVID-19 across 10 countries were identified (median age 8 years). Seventy-eight (60%) had leukaemia/lymphoma, 48 (37%) had solid tumour and five had primary immunodeficiency and HSCT. Fever (71%), cough (47%) and coryza (29%) were the most frequent symptoms. The median duration of detectable virus was 16 days (range, 1-79 days). Forty-nine patients (37%) were hospitalised for COVID-19 symptoms, and 15 (11%) required intensive care unit-level care. Chemotherapy was delayed/modified in 35% of patients. COVID-19 was asymptomatic in 32% of patients, mild in 47%, moderate in 8%, severe in 4% and critical in 9%. In 124 patients (95%), a full recovery was documented, and four (3%) died due to COVID-19. Any comorbidity (odds ratio, 2.94; 95% confidence interval [CI], 1.81-5.21), any coinfection (1.74; 95% CI 1.03-3.03) and severe baseline neutropenia (1.82; 95% CI 1.13-3.09) were independently and significantly associated with increasing disease severity. CONCLUSION Although most children with cancer had asymptomatic/mild disease, 13% had severe COVID-19 and 3% died. Comorbidity, coinfection and neutropenia may increase the risk of severe disease. Our data may help management decisions in this vulnerable population.
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Affiliation(s)
- Gabrielle M. Haeusler
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia,NHMRC National Centre for Infections in Cancer, Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia,The Paediatric Integrated Cancer Service, Parkville, Victoria State Government, Australia,Infection Diseases Unit, Department of General Medicine, Royal Children's Hospital, Parkville, Victoria, Australia,Infection and Immunity Theme, Murdoch Children's Research Institute, Parkville, Australia,Corresponding author: Murdoch Children's Research Institute, Flemington Rd, Parkville, Australia
| | - Roland A. Ammann
- Paediatric Hematology and Oncology, Department of Paediatrics, Inselspital, Bern University Hospital, Bern, Switzerland,Kinderaerzte KurWerk, Burgdorf, Switzerland
| | - Fabianne Carlesse
- Paediatric Oncology Institute, GRAACC/Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Andreas H. Groll
- Infectious Disease Research Program, Center for Bone Marrow Transplantation, Department of Paediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
| | - Dina Averbuch
- Paediatric Infectious Disease, Faculty of Medicine, Hebrew University of Jerusalem, Hadassah Medical Center, Jerusalem, Israel
| | - Elio Castagnola
- Infectious Diseases Unit, Department of Paediatrics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Philipp K.A. Agyeman
- Paediatric Hematology and Oncology, Department of Paediatrics, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Bob Phillips
- Leeds Cancer Centre, Leeds Teaching Hospital, NHS Trust, Leeds, United Kingdom,Centre for Reviews and Dissemination, University of York, York, United Kingdom
| | - Flávio Gilli
- Department of Paediatric Intensive Care, Centro Infantil Boldrini, Campinas, Brazil
| | - Galina Solopova
- Dmitry Rogachev Federal Scientific-Clinical Center of Children's Hematology, Oncology and Immunology, Moscow, Russia
| | - Andishe Attarbaschi
- Paediatric Hematology and Oncology, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Oliver Wegehaupt
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Faculty of Medicine, University of Freiburg, Freiburg, Germany,Center for Paediatrics and Adolescent Medicine, Department of Paediatric Hematology and Oncology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Carsten Speckmann
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Faculty of Medicine, University of Freiburg, Freiburg, Germany,Center for Paediatrics and Adolescent Medicine, Department of Paediatric Hematology and Oncology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Lillian Sung
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Thomas Lehrnbecher
- Paediatric Hematology and Oncology, Hospital for Children and Adolescents, Johann Wolfgang Goethe University, Frankfurt, Germany
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12
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Elgarten CW, Wood AC, Li Y, Alonzo TA, Brodersen LE, Gerbing RB, Getz KD, Huang YSV, Loken M, Meshinchi S, Pollard JA, Sung L, Woods WG, Kolb EA, Gamis AS, Aplenc R. Outcomes of intensification of induction chemotherapy for children with high-risk acute myeloid leukemia: A report from the Children's Oncology Group. Pediatr Blood Cancer 2021; 68:e29281. [PMID: 34596937 PMCID: PMC8717610 DOI: 10.1002/pbc.29281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/15/2021] [Accepted: 07/26/2021] [Indexed: 11/09/2022]
Abstract
BACKGROUND High-risk pediatric acute myeloid leukemia confers a poor prognosis, and alternative strategies are needed to improve outcomes. We hypothesized that intensifying induction on the AAML1031 clinical trial would improve outcomes compared to the predecessor trial AAML0531. METHODS Patients on AAML0531 received cytarabine (1600 mg/m2 )/daunorubicin (150 mg/m2 )/etoposide (ADE) for induction II and patients on AAML1031 received mitoxantrone (48 mg/m2 )/cytarabine (8000 mg/m2 ) (MA). Stem cell transplant (SCT) conditioning included busulfan/cyclophosphamide on AAML0531, whereas AAML1031 used busulfan/fludarabine and liberalized donor eligibility. Patients were included in this analysis if they met high-risk criteria common to the two trials by cytogenics or poor disease response after induction I ADE. RESULTS MA provided no benefit over ADE at: induction II response (complete response [CR]: 64% vs. 62%, p = .87; measurable residual disease [MRD]+: 57% vs. 46%, p = .34); or intensification I response (CR: 79% vs. 94%, p = .27; MRD+: 27% vs. 20%, p = 1.0). When considered with altered SCT approach, MA did not improve 5-year disease-free survival (24% ± 9% vs. 18% ± 15%, p = .63) or 5-year overall survival (35% ± 10% vs. 38% ± 18%, p = .66). MA was associated with slower neutrophil recovery (median 34 vs. 27 days, p = .007) and platelet recovery (median 29 vs. 24.5 days, p = .04) and longer hospital stay (32 vs. 28 days, p = .01) during induction II. CONCLUSION Intensification of induction II did not improve treatment response or survival, but did increase toxicity and resource utilization. Alternative strategies are urgently needed to improve outcomes for pediatric patients with high-risk acute myeloid leukemia (trials registered at clinicaltrials.gov NCT01371981, NCT00372593).
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Affiliation(s)
- Caitlin W. Elgarten
- Division of Oncology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,Center for Pediatric Clinical Effectiveness, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | - Yimei Li
- Department of Biostatistics, Epidemiology, and Informatics, Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Todd A. Alonzo
- University of Southern California, Los Angeles, California, USA
| | | | | | - Kelly D. Getz
- Center for Pediatric Clinical Effectiveness, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,Department of Biostatistics, Epidemiology, and Informatics, Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Y-S Vera Huang
- Department of Biomedical Health Informatics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | - Soheil Meshinchi
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Jessica A. Pollard
- Dana-Farber Cancer Institute, Boston, Massachusetts, USA,Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Lillian Sung
- The Hospital for Sick Children, Toronto, Ontario, Canada
| | - William G. Woods
- Aflac Cancer and Blood Disorders Center, Emory University/Children’s Healthcare of Atlanta, Atlanta, Georgia, USA
| | - E. Anders Kolb
- Alfred I.duPont Hospital for Children, Wilmington, Delaware, USA
| | - Alan S. Gamis
- Children’s Mercy Hospital and Clinics, Kansas City, Missouri, USA
| | - Richard Aplenc
- Division of Oncology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,Center for Pediatric Clinical Effectiveness, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,Department of Biostatistics, Epidemiology, and Informatics, Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
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13
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Potashner R, Weinblatt ME, Glasser CL. Outpatient supportive care for pediatric acute myeloid leukemia: a single institution's experience. Pediatr Hematol Oncol 2021; 38:722-730. [PMID: 33792501 DOI: 10.1080/08880018.2021.1907494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Infections are responsible for most treatment-related morbidity and mortality in pediatric acute myeloid leukemia (AML). Children's Oncology Group (COG) recommends hospitalization following chemotherapy until early absolute neutrophil count (ANC) recovery. No standard guidelines exist for antibiotic prophylaxis and discharge practices vary. Our objective was to report our institution's experience with outpatient supportive care management following early discharge. A retrospective chart review of pediatric AML patients treated at our institution from 2010 to 2019 was conducted. Data was collected on length of hospitalization, antibiotics administered, infections, and neutropenia duration. Seventeen patients underwent 60 chemotherapy cycles. All were discharged after completion of chemotherapy if clinically stable. Patients were re-admitted for fever and discharged on empiric antibiotics if afebrile with negative cultures. Prophylactic antibiotics were administered in 55 cycles. There were 12 infections in 11 patients and no deaths due to infection. Patients remained outpatient for a mean of 15.8 neutropenia days per cycle. Outpatient supportive care for children with AML may be feasible and safe. Further studies are needed to establish outpatient supportive care guidelines.
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Affiliation(s)
- Renee Potashner
- Department of Pediatrics, NYU Langone Hospital - Long Island, Mineola, NY, USA
| | - Mark E Weinblatt
- Department of Pediatric Hematology/Oncology, NYU Langone Hospital - Long Island, Mineola, NY, USA
| | - Chana L Glasser
- Department of Pediatric Hematology/Oncology, NYU Langone Hospital - Long Island, Mineola, NY, USA
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14
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Getz KD, Szymczak JE, Li Y, Madding R, Huang YSV, Aftandilian C, Arnold SD, Bona KO, Caywood E, Collier AB, Gramatges MM, Henry M, Lotterman C, Maloney K, Mian A, Mody R, Morgan E, Raetz EA, Rubnitz J, Verma A, Winick N, Wilkes JJ, Yu JC, Fisher BT, Aplenc R. Medical Outcomes, Quality of Life, and Family Perceptions for Outpatient vs Inpatient Neutropenia Management After Chemotherapy for Pediatric Acute Myeloid Leukemia. JAMA Netw Open 2021; 4:e2128385. [PMID: 34709389 PMCID: PMC8554641 DOI: 10.1001/jamanetworkopen.2021.28385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
IMPORTANCE Pediatric acute myeloid leukemia (AML) requires multiple courses of intensive chemotherapy that result in neutropenia, with significant risk for infectious complications. Supportive care guidelines recommend hospitalization until neutrophil recovery. However, there are little data to support inpatient over outpatient management. OBJECTIVE To evaluate outpatient vs inpatient neutropenia management for pediatric AML. DESIGN, SETTING, AND PARTICIPANTS This cohort study used qualitative and quantitative methods to compare medical outcomes, patient health-related quality of life (HRQOL), and patient and family perceptions between outpatient and inpatient neutropenia management. The study included patients from 17 US pediatric hospitals with frontline chemotherapy start dates ranging from January 2011 to July 2019, although the specific date ranges differed for the individual analyses by design and relative timing. Data were analyzed from August 2019 to February 2020. EXPOSURES Discharge to outpatient vs inpatient neutropenia management. MAIN OUTCOMES AND MEASURES The primary outcomes of interest were course-specific bacteremia incidence, times to next course, and patient HRQOL. Course-specific mortality was a secondary medical outcome. RESULTS Primary quantitative analyses included 554 patients (272 [49.1%] girls and 282 [50.9%] boys; mean [SD] age, 8.2 [6.1] years). Bacteremia incidence was not significantly different during outpatient vs inpatient management (67 courses [23.8%] vs 265 courses [29.0%]; adjusted rate ratio, 0.73; 95% CI, 0.56 to 1.06; P = .08). Outpatient management was not associated with delays to the next course compared with inpatient management (mean [SD] 30.7 [12.2] days vs 32.8 [9.7] days; adjusted mean difference, -2.2; 95% CI, -4.1 to -0.2, P = .03). Mortality during intensification II was higher for patients who received outpatient management compared with those who received inpatient management (3 patients [5.4%] vs 1 patient [0.5%]; P = .03), but comparable with inpatient management at other courses (eg, 0 patients vs 5 patients [1.3%] during induction I; P = .59). Among 97 patients evaluated for HRQOL, outcomes did not differ between outpatient and inpatient management (mean [SD] Pediatric Quality of Life Inventory total score, 70.1 [18.9] vs 68.7 [19.4]; adjusted mean difference, -2.8; 95% CI, -11.2 to 5.6). A total of 86 respondents (20 [23.3%] in outpatient management, 66 [76.7%] in inpatient management) completed qualitative interviews. Independent of management strategy received, 74 respondents (86.0%) expressed satisfaction with their experience. Concerns for hospital-associated infections among caregivers (6 of 7 caregiver respondents [85.7%] who were dissatisfied with inpatient management) and family separation (2 of 2 patient respondents [100%] who were dissatisfied with inpatient management) drove dissatisfaction with inpatient management. Stress of caring for a neutropenic child at home (3 of 3 respondents [100%] who were dissatisfied with outpatient management) drove dissatisfaction with outpatient management. CONCLUSIONS AND RELEVANCE This cohort study found that outpatient neutropenia management was not associated with higher bacteremia incidence, treatment delays, or worse HRQOL compared with inpatient neutropenia management among pediatric patients with AML. While outpatient management may be safe for many patients, course-specific mortality differences suggest that outpatient management in intensification II should be approached with caution. Patient and family experiences varied, suggesting that outpatient management may be preferred by some but may not be feasible for all families. Further studies to refine and standardize safe outpatient management practices are warranted.
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Affiliation(s)
- Kelly D. Getz
- Division of Oncology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Julia E. Szymczak
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Yimei Li
- Division of Oncology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Rachel Madding
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Yuan-Shung V. Huang
- Department of Biomedical and Health Informatics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Catherine Aftandilian
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Stanford University, Palo Alto, California
| | - Staci D. Arnold
- Children’s Healthcare of Atlanta, Emory University, Atlanta, Georgia
| | - Kira O. Bona
- Pediatric Hematology/Oncology, Children’s Hospital Boston, Boston, Massachusetts
| | - Emi Caywood
- A.I. Dupont Hospital for Children, Nemours, Wilmington, Delaware
| | | | | | | | | | - Kelly Maloney
- Children’s Hospital Colorado and the Department of Pediatrics, University of Colorado School of Medicine, Aurora
| | - Amir Mian
- Arkansas Children’s Hospital, Little Rock
| | | | - Elaine Morgan
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois
| | - Elizabeth A. Raetz
- Stephen D. Hassenfeld Children’s Center for Cancer and Blood Disorders, New York, New York
| | - Jeffrey Rubnitz
- Department of Oncology, St Jude Children’s Research Hospital, Memphis, Tennessee
| | - Anupam Verma
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, University of Utah, Salt Lake City
| | - Naomi Winick
- Department of Pediatric Hematology Oncology, University of Texas Southwestern Medical Center, Dallas
| | - Jennifer J. Wilkes
- Department of Pediatrics, University of Washington, Division of Hematology/Oncology, Seattle Children’s Hospital, Seattle
| | - Jennifer C. Yu
- Division of Pediatric Hematology Oncology, Rady Children’s Hospital San Diego, San Diego, California
| | - Brian T. Fisher
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
- Division of Infectious Diseases, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Richard Aplenc
- Division of Oncology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
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15
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Gupta S, Baxter NN, Sutradhar R, Pole JD, Nagamuthu C, Lau C, Nathan PC. Adolescents and young adult acute myeloid leukemia outcomes at pediatric versus adult centers: A population-based study. Pediatr Blood Cancer 2021; 68:e28939. [PMID: 33559361 DOI: 10.1002/pbc.28939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/21/2020] [Accepted: 01/14/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Adolescents and young adult (AYA) acute myeloid leukemia (AML) outcomes remain poor. The impact of locus of care (LOC; adult vs pediatric) in this population is unknown. PROCEDURE The IMPACT cohort comprises detailed data for all Ontario, Canada, AYA aged 15-21 years diagnosed with AML between 1992 and 2012, linked to population-based health administrative data. We determined the impact of LOC on event-free survival (EFS) and overall survival (OS), treatment-related mortality (TRM), and relapse/progression. RESULTS Among 140 AYA, 51 (36.4%) received therapy at pediatric centers. The five-year EFS and OS for the whole cohort were 35.0% ± 4.0% and 53.6% ± 4.2%. Cumulative doses of anthracycline were higher among pediatric center AYA [median 355 mg/m2 , interquartile range (IQR) 135-492 vs 202 mg/m2 , IQR 140-364; P = 0.003]. In multivariable analyses, LOC was not predictive of either EFS [adult vs pediatric center hazard ratio (HR) 1.3, 95% confidence interval (CI) 0.8-2.2, P = 0.27] or OS (HR 1.0, CI 0.6-1.6, P = 0.97). However, patterns of treatment failure varied; higher two-year incidence of TRM in pediatric centers (23.5% ± 6.0% vs.10.1% ± 3.2%; P = 0.046) was balanced by lower five-year incidence of relapse/progression (33.3% ± 6.7% vs 56.2% ± 5.3%; P = 0.002). CONCLUSIONS AYA AML survival outcomes did not vary between pediatric and adult settings. Causes of treatment failure were different, with higher intensity pediatric protocols associated with higher TRM but lower relapse/progression. Careful risk stratification and enhanced supportive care may be of substantial benefit to AYA with AML by allocating maximal treatment intensity to patients who most benefit while minimizing the risk of TRM.
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Affiliation(s)
- Sumit Gupta
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Canada.,Faculty of Medicine, University of Toronto, Toronto, Canada.,Cancer Research Program, ICES, Toronto, Canada.,Institute for Health Policy, Evaluation and Management, University of Toronto, Toronto, Canada
| | - Nancy N Baxter
- Cancer Research Program, ICES, Toronto, Canada.,Institute for Health Policy, Evaluation and Management, University of Toronto, Toronto, Canada.,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada.,Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
| | - Rinku Sutradhar
- Cancer Research Program, ICES, Toronto, Canada.,Institute for Health Policy, Evaluation and Management, University of Toronto, Toronto, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Jason D Pole
- Cancer Research Program, ICES, Toronto, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.,Centre for Health Services Research, University of Queensland, Brisbane, Australia
| | | | - Cindy Lau
- Cancer Research Program, ICES, Toronto, Canada
| | - Paul C Nathan
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Canada.,Faculty of Medicine, University of Toronto, Toronto, Canada.,Cancer Research Program, ICES, Toronto, Canada.,Institute for Health Policy, Evaluation and Management, University of Toronto, Toronto, Canada
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16
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How I treat pediatric acute myeloid leukemia. Blood 2021; 138:1009-1018. [PMID: 34115839 DOI: 10.1182/blood.2021011694] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/07/2021] [Indexed: 11/20/2022] Open
Abstract
Treatment outcomes for pediatric patients with acute myeloid leukemia (AML) have continued to lag behind outcomes reported for children with acute lymphoblastic leukemia (ALL), in part because of the heterogeneity of the disease, a paucity of targeted therapies, and the relatively slow development of immunotherapy compared to ALL. In addition, we have reached the limits of treatment intensity and, even with outstanding supportive care, it is highly unlikely that further intensification of conventional chemotherapy alone will impact relapse rates. However, comprehensive genomic analyses and a more thorough characterization of the leukemic stem cell have provided insights that should lead to tailored and more effective therapies in the near future. In addition, new therapies are finally emerging, including the BCL-2 inhibitor venetoclax, CD33 and CD123-directed chimeric antigen receptor T cell therapy, CD123-directed antibody therapy, and menin inhibitors. Here we present four cases to illustrate some of the controversies regarding the optimal treatment of children with newly diagnosed or relapsed AML.
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17
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Sassen SDT, Mathôt RAA, Pieters R, de Haas V, Kaspers GJL, van den Bos C, Tissing WJE, Te Loo DMWW, Bierings MB, van Westreenen M, van der Sluis IM, Zwaan CM. Population Pharmacokinetics and Pharmacodynamics of Ciprofloxacin Prophylaxis in Pediatric Acute Lymphoblastic Leukemia Patients. Clin Infect Dis 2021; 71:e281-e288. [PMID: 31790556 DOI: 10.1093/cid/ciz1163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 12/27/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Ciprofloxacin is used as antimicrobial prophylaxis in pediatric acute lymphoblastic leukemia (ALL) to decrease infections with gram-negative bacteria. However, there are no clear guidelines concerning prophylactic dose. AIMS To determine the pharmacokinetics and pharmacodynamics (PKPD) of ciprofloxacin prophylaxis in a pediatric ALL population. The effect of patient characteristics and antileukemic treatment on ciprofloxacin exposure, the area under the concentration time curve over minimal inhibitory concentration (AUC24/MIC) ratios, and emergence of resistance were studied. METHODS A total of 615 samples from 129 children (0-18 years) with ALL were collected in a multicenter prospective study. A population pharmacokinetic model was developed. Microbiological cultures were collected prior to and during prophylaxis. An AUC24/MIC of ≥125 was defined as target ratio. RESULTS A 1-compartment model with zero-order absorption and allometric scaling best described the data. No significant (P < .01) covariates remained after backward elimination and no effect of asparaginase or azoles were found. Ciprofloxacin AUC24 was 16.9 mg*h/L in the prednisone prophase versus 29.3 mg*h/L with concomitant chemotherapy. Overall, 100%, 81%, and 18% of patients at, respectively, MIC of 0.063, 0.125, and 0.25 mg/L achieved AUC24/MIC ≥ 125. In 13% of the patients, resistant bacteria were found during prophylactic treatment. CONCLUSION Ciprofloxacin exposure shows an almost 2-fold change throughout the treatment of pediatric ALL. Depending on the appropriateness of 125 as target ratio, therapeutic drug monitoring or dose adjustments might be indicated for less susceptible bacteria starting from ≥ 0.125 mg/L to prevent the emergence of resistance and reach required targets for efficacy.
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Affiliation(s)
- S D T Sassen
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - R A A Mathôt
- Department of Hospital Pharmacy, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - R Pieters
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - V de Haas
- Dutch Childhood Oncology Group (DCOG), The Hague, The Netherlands
| | - G J L Kaspers
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Department of Pediatric Oncology, Emma's Children Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam, The Netherlands
| | - C van den Bos
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Department of Pediatric Oncology, Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands
| | - W J E Tissing
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Department of Pediatric Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - D M W W Te Loo
- Department of Pediatric Hemato-Oncology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - M B Bierings
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Pediatric Blood and Marrow Transplantation Program, University Medical Center Utrecht/Wilhelmina Children's Hospital, The Netherlands
| | - M van Westreenen
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - I M van der Sluis
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands.,Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - C M Zwaan
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands.,Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
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18
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Hasegawa D, Tawa A, Tomizawa D, Watanabe T, Saito AM, Kudo K, Taga T, Iwamoto S, Shimada A, Terui K, Moritake H, Kinoshita A, Takahashi H, Nakayama H, Koh K, Goto H, Kosaka Y, Miyachi H, Horibe K, Nakahata T, Adachi S. Attempts to optimize postinduction treatment in childhood acute myeloid leukemia without core-binding factors: A report from the Japanese Pediatric Leukemia/Lymphoma Study Group (JPLSG). Pediatr Blood Cancer 2020; 67:e28692. [PMID: 32886449 DOI: 10.1002/pbc.28692] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 08/08/2020] [Accepted: 08/23/2020] [Indexed: 01/08/2023]
Abstract
We previously reported that risk-stratified therapy and intensive postremission chemotherapy (PRC) contributed to the improved survival of childhood acute myeloid leukemia (AML) in the AML99 study, which led us to consider a reduction in the number of PRC courses with more restrictive indications for stem cell transplantation (SCT) in the successor AML-05 study. We here report the outcome of AML patients without core-binding factor mutation (non-CBF AML) in the AML-05 study. Two-hundred eighty-nine children (age < 18 years old) with non-CBF AML were eligible. Patients with unfavorable cytogenetics and/or poor bone marrow response to the first induction course were candidates for SCT in the AML-05 study. After two courses of induction, a further three courses of PRC were given in AML-05, while four courses were given in the AML99 study. The 3-year event-free survival (EFS) rate in the AML-05 study (46.7%, 95% CI: 40.6-52.6%) was comparable to that of non-CBF AML in the AML99 study (51.5%, 95% CI: 42.7-59.6%) (P = .16). However, the 3-year overall survival (OS) rate in the AML-05 study (62.9%, 95% CI: 56.3-68.8%) was slightly lower than that in the AML99 study (71.6%, 95% CI: 63.2-78.5%) (P = .060), mainly due to decreased remission induction rate and increased nonrelapsed mortality. In conclusion, reductions in the number of PRC courses from four to three, together with repetitive cycles of high-dose cytarabine, were acceptable for non-CBF childhood AML.
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Affiliation(s)
- Daiichiro Hasegawa
- Department of Hematology and Oncology, Kobe Children's Hospital, Hyogo, Japan
| | - Akio Tawa
- Higashiosaka Aramoto Heiwa Clinic, Osaka, Japan
| | - Daisuke Tomizawa
- Division of Leukemia and Lymphoma, Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Tomoyuki Watanabe
- Department of Nutritional Science, Faculty of Psychological and Physical Science, Aichi Gakuin University, Aichi, Japan
| | - Akiko Moriya Saito
- Laboratory of Clinical, Epidemiological and Health Services Research, National Hospital Organization, Nagoya Medical Center Clinical Research Center, Nagoya, Aichi, Japan
| | - Kazuko Kudo
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Takashi Taga
- Department of Pediatrics, Shiga University of Medical Science, Shiga, Japan
| | - Shotaro Iwamoto
- Department of Pediatrics, Mie University Graduate School of Medicine, Mie, Japan
| | - Akira Shimada
- Department of Pediatrics, Okayama University, Okayama, Japan
| | - Kiminori Terui
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Hiroshi Moritake
- Division of Pediatrics, Department of Reproductive and Developmental Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Akitoshi Kinoshita
- Department of Pediatrics, St. Marianna University School of Medicine, Kanagawa, Japan
| | | | - Hideki Nakayama
- Department of Pediatrics, National Kyushu Cancer Center, Fukuoka, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Hiroaki Goto
- Department of Hematology/Oncology, Kanagawa Children's Medical Center, Kanagawa, Japan
| | - Yoshiyuki Kosaka
- Department of Hematology and Oncology, Kobe Children's Hospital, Hyogo, Japan
| | - Hayato Miyachi
- Department of Laboratory Medicine, Tokai University School of Medicine, Kanagawa, Japan
| | - Keizo Horibe
- Clinical Research Center, National Nagoya Hospital, Aichi, Japan
| | - Tatsutoshi Nakahata
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
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19
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Sung L, Corbin C, Steinberg E, Vettese E, Campigotto A, Lecce L, Tomlinson GA, Shah N. Development and utility assessment of a machine learning bloodstream infection classifier in pediatric patients receiving cancer treatments. BMC Cancer 2020; 20:1103. [PMID: 33187484 PMCID: PMC7666525 DOI: 10.1186/s12885-020-07618-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 11/06/2020] [Indexed: 11/29/2022] Open
Abstract
Background Objectives were to build a machine learning algorithm to identify bloodstream infection (BSI) among pediatric patients with cancer and hematopoietic stem cell transplantation (HSCT) recipients, and to compare this approach with presence of neutropenia to identify BSI. Methods We included patients 0–18 years of age at cancer diagnosis or HSCT between January 2009 and November 2018. Eligible blood cultures were those with no previous blood culture (regardless of result) within 7 days. The primary outcome was BSI. Four machine learning algorithms were used: elastic net, support vector machine and two implementations of gradient boosting machine (GBM and XGBoost). Model training and evaluation were performed using temporally disjoint training (60%), validation (20%) and test (20%) sets. The best model was compared to neutropenia alone in the test set. Results Of 11,183 eligible blood cultures, 624 (5.6%) were positive. The best model in the validation set was GBM, which achieved an area-under-the-receiver-operator-curve (AUROC) of 0.74 in the test set. Among the 2236 in the test set, the number of false positives and specificity of GBM vs. neutropenia were 508 vs. 592 and 0.76 vs. 0.72 respectively. Among 139 test set BSIs, six (4.3%) non-neutropenic patients were identified by GBM. All received antibiotics prior to culture result availability. Conclusions We developed a machine learning algorithm to classify BSI. GBM achieved an AUROC of 0.74 and identified 4.3% additional true cases in the test set. The machine learning algorithm did not perform substantially better than using presence of neutropenia alone to predict BSI. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-020-07618-2.
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Affiliation(s)
- Lillian Sung
- Division of Haematology/Oncology, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, M5G1X8, Canada.
| | - Conor Corbin
- Biomedical Informatics Research, Stanford University, Palo Alto, USA
| | - Ethan Steinberg
- Biomedical Informatics Research, Stanford University, Palo Alto, USA
| | - Emily Vettese
- Division of Haematology/Oncology, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, M5G1X8, Canada
| | - Aaron Campigotto
- Division of Infectious Diseases, The Hospital for Sick Children, Toronto, Canada
| | - Loreto Lecce
- Division of Neonatology, The Hospital for Sick Children, Toronto, Canada
| | | | - Nigam Shah
- Biomedical Informatics Research, Stanford University, Palo Alto, USA
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20
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Microbiologically Documented Bloodstream Infection in Children With Malignancies: A Single-center Experience. J Pediatr Hematol Oncol 2020; 42:e558-e562. [PMID: 32097279 DOI: 10.1097/mph.0000000000001768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Bloodstream infection (BSI) remains a considerable cause of morbidity and mortality for cancer patients. With a better understanding of it, better methods can be used. The primary objective of this study was to describe the characteristics of BSIs in our institution, and the second was to determine the possible risk factors associated with them. MATERIALS AND METHODS Data of cancer patients from 2009 to 2015 at our institution were included. Medical information and blood cultures were analyzed to determine the BSI rate. The χ and Fisher exact tests were used for categorical data and to determine risk factors associated with BSIs and pathogens. RESULTS A total of 565 (8.6%) events were diagnosed with BSIs. Although Gram-negative bacteria (52.6%) were the most commonly isolated pathogens, Gram-positive microorganisms (45.0%) were also prevalent. Oral and gastrointestinal organisms were common. Pathogens were more likely to be identified in patients with central venous catheters and in patients with prolonged neutropenia (P<0.05). CONCLUSIONS This study provides updated epidemiology in BSIs and helps with the prevention and management of suspected BSIs in vulnerable patients. Better anti-infection therapy could be provided to these patients based on the isolated pathogens.
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21
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Maser B, Pelland-Marcotte MC, Alexander S, Sung L, Gupta S. Levofloxacin prophylaxis in hospitalized children with leukemia: A cost-utility analysis. Pediatr Blood Cancer 2020; 67:e28643. [PMID: 32785971 DOI: 10.1002/pbc.28643] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Infections are common and are a major cause of morbidity and mortality during treatment of childhood leukemia. We evaluated the cost effectiveness of levofloxacin antibiotic prophylaxis, compared to no prophylaxis, in children receiving chemotherapy for acute myeloid leukemia (AML) or relapsed acute lymphoblastic leukemia (ALL). PROCEDURES A cost-utility analysis was conducted from the perspective of the single-payer health care system using a lifetime horizon. A comprehensive literature review identified available evidence for effectiveness, safety, costs of antibiotic prophylaxis in children with leukemia, and health utilities associated with the relevant health states. The effects of levofloxacin prophylaxis on health outcomes, quality-adjusted life-years (QALY), and direct health costs were derived from a combined decision tree and state-transition model. One-way deterministic and probabilistic sensitivity analyses were performed to test the sensitivity of results to parameter uncertainty. RESULTS The literature review revealed one randomized controlled trial on levofloxacin prophylaxis in childhood AML and relapsed ALL, by Alexander et al, that showed a significant reduction in rates of fever and neutropenia (71.2% vs 82.1%) and bacteremia (21.9% vs 43.4%) with levofloxacin compared to no prophylaxis. In our cost-utility analysis, levofloxacin prophylaxis was dominant over no prophylaxis, resulting in cost savings of $542.44 and increased survival of 0.13 QALY. In probabilistic sensitivity analysis, levofloxacin prophylaxis was dominant in 98.8% of iterations. CONCLUSIONS The present analysis suggests that levofloxacin prophylaxis, compared to no prophylaxis, is cost saving in children receiving intensive chemotherapy for AML or relapsed ALL.
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Affiliation(s)
- Brandon Maser
- The Hospital for Sick Children, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, Toronto, Ontario, Canada
| | - Marie-Claude Pelland-Marcotte
- The Hospital for Sick Children, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,CHU de Québec - Centre Mère-Enfant Soleil, Quebec City, Quebec, Canada
| | | | - Lillian Sung
- The Hospital for Sick Children, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, Toronto, Ontario, Canada
| | - Sumit Gupta
- The Hospital for Sick Children, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, Toronto, Ontario, Canada
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22
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Seneviratne N, Yeomanson D, Phillips R. Short-course antibiotics for chemotherapy-induced febrile neutropaenia: retrospective cohort study. Arch Dis Child 2020; 105:881-885. [PMID: 32184200 DOI: 10.1136/archdischild-2019-317908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 01/17/2020] [Accepted: 02/24/2020] [Indexed: 11/04/2022]
Abstract
BACKGROUND Recent research in febrile neutropaenia (FN) has focused on reducing the intensity of treatment for those thought to be at low risk of significant morbidity or mortality. This has not led to a reduced burden of treatment for either families or healthcare systems. An alternative approach is to discharge all patients who remain well after 48 hours of inpatient treatment, either with no ongoing treatment or with appropriate antibiotics if the cultures are positive. This paper aimed to demonstrate that this approach is safe. METHODS Patients treated according to this approach in a single centre were reviewed retrospectively, with a random selection of patients from a 4-year period. Data were collected according to the Predicting Infectious Complications of Neutropenic sepsis in Children with Cancer dataset. In addition, all septic deaths over a 10-year period were reviewed in the same manner. RESULTS 179 episodes of FN were reviewed from 47 patients. In 70% (125/179) of episodes, patients were discharged safely once 48-hour microbiology results were available, with only 5.6% (7/125) resulting in readmission in the 48 hours following discharge. There were no septic deaths in this cohort.There were 11 deaths due to FN over the 10-year study period. Almost all patients were identified as severely unwell in the early stages of their final presentation or had a prolonged final illness. CONCLUSION This paper indicates that the policy described provides a balance between safety and acceptability. Further work is needed to demonstrate non-inferiority and cost-benefit.
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Affiliation(s)
- Nicola Seneviratne
- Haematology and Oncology, Sheffield Children's NHS Foundation Trust, Sheffield, UK
| | - Daniel Yeomanson
- Haematology and Oncology, Sheffield Children's NHS Foundation Trust, Sheffield, UK
| | - Robert Phillips
- Centre for Reviews and Dissemination, University of York, York, UK
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23
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Pelland-Marcotte MC, Pole JD, Nathan PC, Sutradhar R, Sung L. Severe infections following treatment for childhood cancer: a report from CYP-C. Leuk Lymphoma 2020; 61:2876-2884. [PMID: 32654563 DOI: 10.1080/10428194.2020.1789626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Little is known about infections occurring after childhood cancer treatment. We assessed the risk of severe infection postcancer therapy in survivors of leukemia compared to other cancer types. We performed a population-based cohort study of children <15 years of age diagnosed with cancer (2001-2016), alive and relapse-free 30 days after treatment completion. The risk of severe infection in both groups was estimated using subdistribution proportional hazard regression. We identified 6148 survivors (1960 with leukemia). The cumulative incidence (95% confidence interval) of severe infections at 3 years was 0.70% (0.40-1.2%) in leukemia and 0.51% (0.32-0.79%) in other cancers. The risk of severe infection was not statistically different in leukemia survivors compared to other cancer types in univariate and multivariate analysis (adjusted hazard ratio: 1.40, 95% CI: 0.69-2.85). No significant association was found between a history of leukemia and an increased risk of severe infection after treatment, compared to other cancer types.
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Affiliation(s)
- Marie-Claude Pelland-Marcotte
- Division of Hematology/Oncology, CHU de Québec - Centre Mère-Enfant Soleil, Quebec City, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
| | - Jason D Pole
- ICES, Toronto, Canada.,Centre for Health Services Research, University of Queensland, Woolloongabba, Australia
| | - Paul C Nathan
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Canada.,Program in Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, Toronto, Canada
| | | | - Lillian Sung
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Canada.,Program in Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, Toronto, Canada
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24
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Sharing Roles and Control in Pediatric Low Risk Febrile Neutropenia: A Multicenter Focus Group Discussion Study Involving Patients, Parents, and Health Care Professionals. J Pediatr Hematol Oncol 2020; 42:337-344. [PMID: 32404685 DOI: 10.1097/mph.0000000000001827] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Reducing treatment intensity for pediatric low risk febrile neutropenia may improve quality of life, and reduce hospital-acquired infections and costs. Key stakeholders' attitudes toward early discharge regimens are unknown. This study explored perceptions of reduced therapy regimens in the United Kingdom. MATERIALS AND METHODS Three study sites were purposively selected for their approaches to risk stratification, treatment protocols, shared care networks, and geographical spread of patients. Patients aged 13 to 18 years, parents of children of all ages and health care professionals participated in focus group discussions. A constant comparison analysis was used. RESULTS Thirty-two participants spoke of their different roles in managing febrile neutropenia and how these would change if reduced therapy regimens were implemented, how mutual trust would need to be strengthened and responsibility redistributed. Having identified a need for discretion and a desire for individualized care, negotiation within a spectrum of control allows achievement of the potential for realized discretion. Nonattendance exemplifies when control is different and families use their assessments of risk and sense of mutual trust, along with previous experiences, to make decisions. CONCLUSIONS The significance of shared decision making in improving patient experience through sharing risks, developing mutual trust, and negotiating control to achieve individualized treatment cannot be underestimated.
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Abstract
PURPOSE OF REVIEW Despite advances in therapy over the past decades, overall survival for children with acute myeloid leukemia (AML) has not exceeded 70%. In this review, we highlight recent insights into risk stratification for patients with pediatric AML and discuss data driving current and developing therapeutic approaches. RECENT FINDINGS Advances in cytogenetics and molecular profiling, as well as improvements in detection of minimal residual disease after induction therapy, have informed risk stratification, which now relies heavily on these elements. The treatment of childhood AML continues to be based primarily on intensive, conventional chemotherapy. However, recent trials focus on limiting treatment-related toxicity through the identification of low-risk subsets who can safely receive fewer cycles of chemotherapy, allocation of hematopoietic stem-cell transplant to only high-risk patients and optimization of infectious and cardioprotective supportive care. SUMMARY Further incorporation of genomic and molecular data in pediatric AML will allow for additional refinements in risk stratification to enable the tailoring of treatment intensity. These data will also dictate the incorporation of molecularly targeted therapeutics into frontline treatment in the hope of improving survival while decreasing treatment-related toxicity.
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26
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Arad-Cohen N, Rowe JM, Shachor-Meyouhas Y. Pharmacological prophylaxis of infection in pediatric acute myeloid leukemia patients. Expert Opin Pharmacother 2020; 21:193-205. [PMID: 31914337 DOI: 10.1080/14656566.2019.1701654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Introduction: Pediatric patients treated for acute myeloid leukemia (AML) are at high risk of developing severe infectious complications. The choice of an optimum supportive treatment should be based on local epidemiology, as well as intensity and toxicity of the anti-leukemic therapy applied.Areas covered: This review presents an overview of recently published studies focusing on the prevention of infection in pediatric AML patients. PubMed has been systematically searched for clinical trials, reviews, and meta-analyses published in the last 10 years. The focus of this article will be limited to primary prophylaxis only, while secondary prophylaxis is beyond the scope of the current review.Expert opinion: Although anti-bacterial agents may decrease the bacterial infection burden, there is no consensus regarding prophylactic use. To that end, there is a need for further randomized controlled trials to establish the precise role of anti-bacterial prophylaxis in pediatric AML patients. The prophylactic use of anti-fungal agents is strongly recommended for all AML patients. Since the contribution of hematopoietic growth factors to improved survival has not been demonstrated, they should not be routinely applied. Decisions regarding an appropriate prophylactic strategy should be taken in collaboration with the infectious disease experts and pharmacology team.
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Affiliation(s)
- Nira Arad-Cohen
- Pediatric Hematology-Oncology Department, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel
| | - Jacob M Rowe
- Department of Hematology and Bone Marrow Transplantation, Rambam Health Care Campus Haifa, Haifa, Israel.,Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel.,Department of Hematology, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Yael Shachor-Meyouhas
- Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel.,Pediatric Infectious Diseases Unit, Rambam Health Care Campus, Ruth Rappaport Children's Hospital Haifa, Israel
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27
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Miller LH, Keller F, Mertens A, Klein M, Allen K, Castellino S, Woods WG. Impact of fluid overload and infection on respiratory adverse event development during induction therapy for childhood acute myeloid leukemia. Pediatr Blood Cancer 2019; 66:e27975. [PMID: 31502412 PMCID: PMC6803045 DOI: 10.1002/pbc.27975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 07/03/2019] [Accepted: 07/26/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Treatment-related morbidity and mortality occur frequently in childhood acute myeloid leukemia (AML) induction. Yet the contributions of respiratory adverse events (AEs) within this population are poorly understood. Furthermore, the roles of fluid overload (FO) and infection in AML pulmonary complications have been inadequately examined. OBJECTIVES To describe the incidence, categories, and grades of respiratory AEs and to assess the associations of FO and infection on respiratory AE development in childhood AML induction. METHODS We retrospectively examined the induction courses of a cohort of de novo pediatric AML patients for any NCI CTCAE grade 2 to 5 respiratory AE, FO, and systemic/pulmonary infection occurrence. Demographic, disease, and treatment-related data were abstracted. Descriptive, univariate, survival, and multivariable analyses were conducted. RESULTS Among 105 eligible subjects from 2009 to 2016, 49.5% (n = 52) experienced 63 discrete respiratory AEs. FO occurred in 28.6% of subjects (n = 30), with half occurring within 24 hours of hospitalization. Positive FO status < 10 days (aHR 5.5, 95% CI 2.3-12.8), ≥ 10 days (aHR 13, 95% CI 4.1-41.8), and positive infection status ≥ 10 days into treatment (aHR 14.9, 5.4-41.6) were each independently associated with AE development. CONCLUSIONS We describe a higher incidence of respiratory AEs during childhood AML induction than previously illustrated. FO occurs frequently and early in this course. Late infections and FO at any time frame were strongly associated with AE development. Interventions focused on the prevention and management of FO and infectious respiratory complications could be instrumental in reducing preventable treatment-related morbidity and mortality.
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Affiliation(s)
- Lane H Miller
- Department of Pediatrics, Emory University, Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, USA
| | - Frank Keller
- Department of Pediatrics, Emory University, Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, USA
| | - Ann Mertens
- Department of Pediatrics, Emory University, Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, USA
| | - Mitchel Klein
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Kristen Allen
- Department of Pediatrics, Emory University, Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, USA
| | - Sharon Castellino
- Department of Pediatrics, Emory University, Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, USA,Drs Castellino and Woods provided equal contribution as senior authors
| | - William G Woods
- Department of Pediatrics, Emory University, Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, USA,Drs Castellino and Woods provided equal contribution as senior authors
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28
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Pelland-Marcotte MC, Pole JD, Hwee J, Sutradhar R, Science M, Nathan PC, Sung L. Long-Term Risk of Infections After Treatment of Childhood Leukemia: A Population-Based Cohort Study Using Administrative Health Data. J Clin Oncol 2019; 37:2651-2660. [PMID: 31393747 DOI: 10.1200/jco.19.00570] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Infections are a frequent complication during childhood leukemia treatment. Little is known about the infectious risk in survivors. We compared the relative rate (RR) of infections after treatment completion between pediatric leukemia survivors and the general population. METHODS We performed a retrospective, population-based cohort study of children diagnosed with leukemia between 1992 and 2015 in Ontario, Canada, who were alive and relapse free 30 days after treatment completion (index date). Leukemia survivors were matched 5:1 with the general population by year of birth, sex, and rural status and stratified by initial treatment, including and excluding hematopoietic stem-cell transplantation (HSCT). The primary outcome was time to infections, as identified using validated diagnostic codes from administrative databases. Individuals were censored at the earliest of death, first relapse, loss to follow-up, or end of study. RESULTS A total of 2,204 leukemia survivors were included and matched with 11,020 controls. The rate of infections was elevated after treatment completion compared with controls (RR, 1.51; 95% CI, 1.45 to 1.57) and at less than 1 year (RR, 1.77; 95% CI, 1.69 to 1.86); 1 to 4.99 years (RR, 1.66; 95% CI, 1.62 to 1.71), and 5 or more years (RR, 1.29; 95% CI, 1.22 to 1.36) from the index date. Among those whose initial treatment excluded HSCT, the rate remained elevated more than 5 years from the index date (RR, 1.29; 95% CI, 1.23 to 1.35). Infection-related death was significantly increased in leukemia survivors both among the entire cohort (hazard ratio, 149.3; 95% CI, 20.4 to 1,091.9) and among those without HSCT (hazard ratio, 92.7; 95% CI, 12.4 to 690.7). CONCLUSION A significant association was found between a history of leukemia therapy and an increased risk of infections. Additional study is needed to establish which exposures in patients with leukemia lead to late infections.
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Affiliation(s)
| | - Jason D Pole
- The Hospital for Sick Children, Toronto, Ontario, Canada.,Institute for Clinical Evaluative Services, Toronto, Ontario, Canada
| | - Jeremiah Hwee
- University of Toronto, Toronto, Ontario, Canada.,Institute for Clinical Evaluative Services, Toronto, Ontario, Canada.,Trillium Health Partners, Mississauga, Ontario, Canada
| | - Rinku Sutradhar
- University of Toronto, Toronto, Ontario, Canada.,Institute for Clinical Evaluative Services, Toronto, Ontario, Canada
| | | | - Paul C Nathan
- The Hospital for Sick Children, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada
| | - Lillian Sung
- The Hospital for Sick Children, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada
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29
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Sas V, Blag C, Zaharie G, Puscas E, Lisencu C, Andronic-Gorcea N, Pasca S, Petrushev B, Chis I, Marian M, Dima D, Teodorescu P, Iluta S, Zdrenghea M, Berindan-Neagoe I, Popa G, Man S, Colita A, Stefan C, Kojima S, Tomuleasa C. Transient leukemia of Down syndrome. Crit Rev Clin Lab Sci 2019; 56:247-259. [PMID: 31043105 DOI: 10.1080/10408363.2019.1613629] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Childhood leukemia is mostly a "developmental accident" during fetal hematopoiesis and may require multiple prenatal and postnatal "hits". The World Health Organization defines transient leukemia of Down syndrome (DS) as increased peripheral blood blasts in neonates with DS and classifies this type of leukemia as a separate entity. Although it was shown that DS predisposes children to myeloid leukemia, neither the nature of the predisposition nor the associated genetic lesions have been defined. Acute myeloid leukemia of DS is a unique disease characterized by a long pre-leukemic, myelodysplastic phase, unusual chromosomal findings and a high cure rate. In the present manuscript, we present a comprehensive review of the literature about clinical and biological findings of transient leukemia of DS (TL-DS) and link them with the genetic discoveries in the field. We address the manuscript to the pediatric generalist and especially to the next generation of pediatric hematologists.
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Affiliation(s)
- Valentina Sas
- a Department of Hematology , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania.,b Department of Pediatrics , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Cristina Blag
- b Department of Pediatrics , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Gabriela Zaharie
- c Department of Neonatology , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Emil Puscas
- d Department of Surgery , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Cosmin Lisencu
- d Department of Surgery , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Nicolae Andronic-Gorcea
- a Department of Hematology , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Sergiu Pasca
- a Department of Hematology , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Bobe Petrushev
- a Department of Hematology , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Irina Chis
- e Department of Physiology , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Mirela Marian
- f Department of Hematology , Ion Chiricuta Clinical Cancer Center , Cluj Napoca , Romania
| | - Delia Dima
- f Department of Hematology , Ion Chiricuta Clinical Cancer Center , Cluj Napoca , Romania
| | - Patric Teodorescu
- a Department of Hematology , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Sabina Iluta
- a Department of Hematology , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Mihnea Zdrenghea
- f Department of Hematology , Ion Chiricuta Clinical Cancer Center , Cluj Napoca , Romania
| | - Ioana Berindan-Neagoe
- g MedFuture Research Center for Advanced Medicine , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Gheorghe Popa
- b Department of Pediatrics , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Sorin Man
- b Department of Pediatrics , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
| | - Anca Colita
- h Department of Pediatrics , Carol Davila University of Medicine and Pharmacy , Bucharest , Romania.,i Department of Pediatrics , Fundeni Clinical Institute , Bucharest , Romania
| | - Cristina Stefan
- j African Organization for Research and Training in Cancer , Cape Town , South Africa
| | - Seiji Kojima
- k Department of Pediatrics , Nagoya University Graduate School of Medicine , Nagoya , Japan.,l Center for Advanced Medicine and Clinical Research , Nagoya University Hospital , Nagoya , Japan
| | - Ciprian Tomuleasa
- a Department of Hematology , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania.,f Department of Hematology , Ion Chiricuta Clinical Cancer Center , Cluj Napoca , Romania.,m Research Center for Functional Genomics and Translational Medicine , Iuliu Hatieganu University of Medicine and Pharmacy , Cluj Napoca , Romania
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Hafez HA, Soliaman RM, Bilal D, Hashem M, Shalaby LM. Early Deaths in Pediatric Acute Leukemia: A Major Challenge in Developing Countries. J Pediatr Hematol Oncol 2019; 41:261-266. [PMID: 30615014 DOI: 10.1097/mph.0000000000001408] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Children with acute leukemia may experience high treatment-related mortality, which often occurs early in the induction phase. The aim of the study was to assess the incidence and risk factors related to increased mortality during induction therapy of pediatric patients with acute leukemia. This is a retrospective study that included pediatric acute leukemia patients who presented to the National Cancer Institute, Cairo University, between January 2011 and December 2013. The study included 370 patients, 253 with acute lymphoblastic leukemia, 100 with acute myeloid leukemia, and 17 with mixed phenotype acute leukemia. The total and induction death rates were 40.5% and 19.2%, respectively. Most of the early deaths were attributed to infections (64.7%) and cerebrovascular accidents (18.3%). Using enhanced supportive care measures during 2013 had significantly reduced the overall and induction mortality rates (29% and 13.6%, respectively, in 2013 vs. 46% and 20.3% in 2011). Induction deaths in pediatric acute leukemia remain a major challenge in developing countries, and using enhanced supportive care measures is effective to improve the survival outcome in this group of patients.
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Affiliation(s)
| | | | - Dalia Bilal
- Biostatistics, National Cancer Institute, Cairo University
| | - Mohamed Hashem
- Research Department, Children's Cancer Hospital, Cairo, Egypt
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Chen XY, Ruan M, Zhao BB, Wang SC, Chen XJ, Zhang L, Guo Y, Yang WY, Zou Y, Chen YM, Zhu XF. [Mitoxantrone-cytarabine-etoposide induction therapy in children with acute myeloid leukemia: a single-center study of complications and clinical outcomes]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2019; 21:24-28. [PMID: 30675859 PMCID: PMC7390179 DOI: 10.7499/j.issn.1008-8830.2019.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 11/20/2018] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To investigate the complications and clinical outcome of children with acute myeloid leukemia (AML) undergoing mitoxantrone-cytarabine-etoposide (MAE) induction therapy. METHODS A total of 170 children with AML were given MAE induction therapy, and the complications and remission rate were analyzed after treatment. RESULTS The male/female ratio was 1.33:1 and the mean age was 7.4 years (range 1-15 years). Leukocyte count at diagnosis was 29.52×109/L [range (0.77-351)×109/L]. Of all children, 2 had M0-AML, 24 had M2-AML, 2 had M4-AML, 48 had M5-AML, 3 had M6-AML, 7 had M7-AML, 69 had AML with t(8;21)(q22;q22), and 15 had AML with inv(16)(p13.1q22) or t(16;16)(p13.1;q22). The most common complication was infection (158/170, 92.9%). Among these 158 patients, 22 (13.9%) had agranulocytosis with pyrexia (with no definite focus of infection), and 136 (86.1%) had definite focus of infection (including bloodstream infection). Other complications included non-infectious diarrhea, bleeding, and drug-induced hepatitis. Treatment-related mortality was observed in 10 children, among whom 8 had severe infection, 1 had multiple organ failure, and 1 had respiratory failure. Remission rate was evaluated for 156 children and the results showed a complete remission rate of 85.3%, a partial remission rate of 4.5%, and a non-remission rate of 10.3%. CONCLUSIONS Induction therapy with the MAE regimen helps to achieve a good remission rate in children with AML after one course of treatment. Infection is the main complication and a major cause of treatment-related mortality.
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Affiliation(s)
- Xiao-Yan Chen
- Department of Pediatric Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China.
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Chastagner P, Michel D, Contet A, Lozniewski A, Hadou T, Schmitt C, Phulpin A, Fouyssac F, Mansuy L. Effectiveness of antibacterial prophylaxis in children with acute leukemia: A report from a single institution over a 20-year period. Arch Pediatr 2018; 25:464-468. [PMID: 30340941 DOI: 10.1016/j.arcped.2018.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 05/14/2018] [Accepted: 09/23/2018] [Indexed: 11/17/2022]
Abstract
BACKGROUND Infection is the major cause of treatment-related mortality in childhood acute leukemia, mainly due to bacterial translocation across the intestinal mucosa. Only a few studies have reported the impact of different antibacterial prophylaxis treatments on digestive tract flora and infection-related mortality. PROCEDURES We performed a retrospective analysis of two different digestive tract decontamination modalities (selective or total digestive decontamination) in a large single-center series of 323 children during the induction treatment of acute leukemia between January 1995 and December 2014. We examined the impact of antibiotic prophylaxis and food regimen (sterile or selected) on the digestive tract flora during the period of antibacterial prophylaxis, on the frequency of bacteremia, and on antibiotic sensitivity. RESULTS Only one Gram-negative (Klebsiella pneumonia) translocation occurred in the SDD group. No infection-related death occurred. Extended-spectrum beta-lactamase (ESBL) bacteria were observed in seven of 170 (4%) patients in the SDD group. The faecal-flora total suppression and faecal-flora Gram-negative bacilli suppression was 67 and 77%, respectively, in the TDD group with sterile food, 0 and 58%, respectively, in the SDD group with sterile food, and 6 and 63%, respectively, in the SDD group with selective food. CONCLUSIONS This study gives a rationale not to use antibacterial prophylaxis systematically in children who receive induction treatment for acute leukemia; additionally, antibiotics should only be used in case of stool contamination by highly pathogenic bacteria with a high potential of translocation.
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Affiliation(s)
- P Chastagner
- Pediatric oncology department, Nancy university hospital, 54511 Vandoeuvre, France.
| | - D Michel
- Pediatric oncology department, Nancy university hospital, 54511 Vandoeuvre, France
| | - A Contet
- Pediatric oncology department, Nancy university hospital, 54511 Vandoeuvre, France
| | - A Lozniewski
- Department of bacteriology, Nancy university hospital, 54000 Nancy, France
| | - T Hadou
- Department of bacteriology, Nancy university hospital, 54000 Nancy, France
| | - C Schmitt
- Pediatric oncology department, Nancy university hospital, 54511 Vandoeuvre, France
| | - A Phulpin
- Pediatric oncology department, Nancy university hospital, 54511 Vandoeuvre, France
| | - F Fouyssac
- Pediatric oncology department, Nancy university hospital, 54511 Vandoeuvre, France
| | - L Mansuy
- Pediatric oncology department, Nancy university hospital, 54511 Vandoeuvre, France
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Calitri C, Ruberto E, Castagnola E. Antibiotic prophylaxis in neutropenic children with acute leukemia: Do the presently available data really support this practice? Eur J Haematol 2018; 101:721-727. [PMID: 30107054 DOI: 10.1111/ejh.13162] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 08/02/2018] [Accepted: 08/03/2018] [Indexed: 12/30/2022]
Abstract
Antibiotics are frequently administered for prophylaxis of fever in neutropenic children with cancer. This strategy is mainly derived from adults' data, and various pediatric studies evidenced the effectiveness of antibiotics (eg, fluoroquinolones) in the prevention of febrile neutropenia. However, only two pediatric randomized, double-blind, placebo-controlled trials have been performed, with a total of 262 leukemic children enrolled, and no other one was ever powered for analyzing effectiveness over other infectious complications. In an era of increasing antibiotic resistance, the widespread use of antibiotic prophylaxis in neutropenic leukemic children needs to be strongly supported.
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Affiliation(s)
| | - Eliana Ruberto
- Department of Translational Medical Science, Section of Pediatrics, Università di Napoli Federico II, Napoli, Italy
| | - Elio Castagnola
- Infectious Diseases Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
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Al Omar S, Moumani D, Rihani R. Antibacterial prophylaxis in pediatric patients with leukemia. Saudi Pharm J 2018; 26:810-816. [PMID: 30202221 PMCID: PMC6128709 DOI: 10.1016/j.jsps.2018.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 04/01/2018] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Bacterial infections in pediatric patients with leukemia are associated with increased risks for morbidity and mortality. Few Recommendations have been made on the use of antibacterial prophylaxis in pediatrics with acute lymphoblastic leukemia (ALL) or acute myeloid leukemia (AML). OBJECTIVES To determine the role of antibacterial prophylaxis in pediatric patients with leukemia and the most appropriate regimen that can be safely and effectively used. METHODS Literature search was conducted independently by 3 reviewers to find studies on the safety and effectiveness of antibacterial prophylactic regimens. RESULTS The search strategy resulted in 13 studies; most of them were observational studies. The available evidence recommends use of antibiotics with Gram-positive bacterial coverage in AML patients. In ALL patients, prophylaxis was used during the intensive phases of chemotherapy with ciprofloxacin being recommended most commonly. CONCLUSION Antibacterial prophylaxis mainly with coverage against Gram-positive bacteria is recommended in pediatric patients with AML. For ALL patients, prophylaxis may be considered for patients who are undergoing intensive chemotherapy phases and are at high risk for infections with ciprofloxacin being the most commonly used agent. In general more studies are needed to determine the role of antibacterial prophylaxis in pediatric patients with leukemia.
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Affiliation(s)
- Suha Al Omar
- Department of Clinical Pharmacy, King Hussain Cancer Center, Amman, Jordan
| | - Deema Moumani
- Department of Clinical Pharmacy, King Hussain Cancer Center, Amman, Jordan
| | - Rawad Rihani
- Department of Pediatric Oncology, Pediatric Bone Marrow and Stem Cell Transplantation, King Hussain Cancer Center, Amman, Jordan
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Abstract
For several decades, few substantial therapeutic advances have been made for patients with acute myeloid leukaemia. However, since 2017 unprecedented growth has been seen in the number of drugs available for the treatment of acute myeloid leukaemia, with several new drugs receiving regulatory approval. In addition to advancing our therapeutic armamentarium, an increased understanding of the biology and genomic architecture of acute myeloid leukaemia has led to refined risk assessment of this disease, with consensus risk stratification guidelines now incorporating a growing number of recurrent molecular aberrations that aid in the selection of risk-adapted management strategies. Despite this promising recent progress, the outcomes of patients with acute myeloid leukaemia remain unsatisfactory, with more than half of patients ultimately dying from their disease. Enrolment of patients into clinical trials that evaluate novel drugs and rational combination therapies is imperative to continuing this progress and further improving the outcomes of patients with acute myeloid leukaemia.
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MESH Headings
- Aminoglycosides/therapeutic use
- Antibodies, Monoclonal, Humanized/therapeutic use
- Antineoplastic Agents/therapeutic use
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Consolidation Chemotherapy
- Cytarabine/administration & dosage
- Gemtuzumab
- Genomics
- Hematopoietic Stem Cell Transplantation
- Humans
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/therapy
- Patient Selection
- Recurrence
- Remission Induction
- Risk Assessment
- Risk Factors
- Staurosporine/analogs & derivatives
- Staurosporine/therapeutic use
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Affiliation(s)
- Nicholas J Short
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michael E Rytting
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Pediatrics-Patient Care, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jorge E Cortes
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Klein K, Hasle H, Abrahamsson J, De Moerloose B, Kaspers GJL. Differences in infection prophylaxis measures between paediatric acute myeloid leukaemia study groups within the international Berlin-Frankfürt-Münster (I-BFM) study group. Br J Haematol 2018; 183:87-95. [PMID: 30074239 DOI: 10.1111/bjh.15499] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 06/07/2018] [Indexed: 11/29/2022]
Abstract
Prevention of infections is of obvious relevance in paediatric patients with acute myeloid leukaemia (AML). However, recommendations are often non-specific and supported by low-quality evidence, resulting in divergent infection preventive regimens. Using a web-based survey, we investigated the infection prophylaxis guidelines of 22 paediatric AML study groups affiliated to the international Berlin-Frankfürt-Münster study group. In order to evaluate differences in daily practice among hospitals, representatives (n = 27) from the Nordic Society for Paediatric Haematology and Oncology-Dutch-Belgium-Hong Kong - AML study group participated in a slightly modified survey. Seven study groups (32%) advise gram-negative antibiotic prophylaxis, mainly with fluoroquinolones (n = 6). Gram-positive prophylaxis is prescribed by eight groups (36%). Over 60% of the study groups prescribe food and social restrictions, but the specific topics and strictness differ widely. According to the hospital-based survey, sites roughly comply with common study group guidelines. However, the use of any gram-negative antibiotic prophylaxis, the specific prophylactic antifungal agent and the strictness of the food and social restrictions differ substantially between the hospitals. Despite a long history of close collaboration, many differences are still present between the affiliated groups. The results of this survey provide an appropriate baseline measure to study the emergence and impact of future guidelines on infection prophylaxis in paediatric AML.
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Affiliation(s)
- Kim Klein
- Department of Pediatric Oncology/Hematology, VU University Medical Center, Amsterdam, The Netherlands.,Department of Pediatrics, University Medical Center Utrecht/Wilhelmina Children's Hospital, Utrecht, The Netherlands
| | - Henrik Hasle
- Department of Oncology, Aarhus University Hospital Skejby, Aarhus, Denmark.,Nordic Pediatric Hematology and Oncology group, Gothenburg, Sweden
| | - Jonas Abrahamsson
- Nordic Pediatric Hematology and Oncology group, Gothenburg, Sweden.,Department of Pediatric Oncology, Queen Silvia Children's Hospital, Gothenburg, Sweden
| | - Barbara De Moerloose
- Department of Pediatric Hematology-Oncology and Stem Cell Transplantation, Ghent University Hospital, Ghent, Belgium.,Belgian Society of Paediatric Haematology Oncology, Utrecht, The Netherlands
| | - Gertjan J L Kaspers
- Department of Pediatric Oncology/Hematology, VU University Medical Center, Amsterdam, The Netherlands.,Dutch Childhood Oncology Group, Utrecht, The Netherlands.,Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
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Yao JF, Li N, Jiang J. Clinical Characteristics of Bloodstream Infections in Pediatric Acute Leukemia: A Single-center Experience with 231 Patients. Chin Med J (Engl) 2018; 130:2076-2081. [PMID: 28836551 PMCID: PMC5586176 DOI: 10.4103/0366-6999.213411] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background: Acute leukemia is the most common pediatric hematological malignancy. Bloodstream infections (BSIs) are severe complications in these patients during chemotherapy. This study aimed to explore the clinical presentation and etiology of BSI, as well as the common sites of infection, and to provide a basis for the rational regarding antibiotic use. Methods: We performed a retrospective chart review of all pediatric patients who had acute leukemia accompanied by a BSI in our hospital from December 2011 to September 2015. All patients were selected based on clinical presentation and had to have at least one positive blood culture for inclusion. The basic clinical characteristics, blood culture results, and antimicrobial susceptibilities were analyzed. Results: All 231 patients had a fever; of them, 12 patients continued to have a fever. Twenty-five patients had nonremitting (NR) leukemia, and 206 patients achieved complete remission (CR). Differences in the duration of fever between the NR and CR groups were significant (9.6 ± 7.9 vs. 5.1 ± 3.8 days, P = 0.016). One hundred and eighty patients had agranulocytosis. Differences in fever duration between the agranulocytosis and nonagranulocytosis groups were significant (6.2 ± 5.1 vs. 4.1 ± 2.6 days, P = 0.001). The other sites of infection in these 231 patients were the lung, mouth, digestive tract, and rectum. Blood culture comprised 2635 samples. There were 619 samples, which were positive. Of the 619 positive blood culture samples, 59.9% had Gram-negative bacteria, 39.3% had Gram-positive bacteria, and 0.8% had fungus. The primary pathogens were Pseudomonas aeruginosa, Enterobactercloacae, Escherichia coli, and Klebsiella pneumoniae. Of these 231 patients, 217 patients were cured. The effective treatment ratio was 94%. Conclusions: Gram-negative bacteria were the main pathogenic bacteria in patients with acute leukemia in our center. NR primary illness, agranulocytosis, and drug-resistant pathogenic bacteria were all risk factors for poor prognosis.
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Affiliation(s)
- Jia-Feng Yao
- Hematology Oncology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - Nan Li
- Hematology Oncology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - Jin Jiang
- Hematology Oncology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
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Morgan JE, Phillips B, Stewart LA, Atkin K. Quest for certainty regarding early discharge in paediatric low-risk febrile neutropenia: a multicentre qualitative focus group discussion study involving patients, parents and healthcare professionals in the UK. BMJ Open 2018; 8:e020324. [PMID: 29764879 PMCID: PMC5961608 DOI: 10.1136/bmjopen-2017-020324] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
OBJECTIVES A systematic review of paediatric low-risk febrile neutropenia found that outpatient care is safe, with low rates of treatment failure. However, this review, and a subsequent meta-ethnography, suggested that early discharge of these patients may not be acceptable to key stakeholders. This study aimed to explore experiences and perceptions of patients, parents and healthcare professionals involved in paediatric febrile neutropenia care in the UK. SETTING Three different centres within the UK, purposively selected from a national survey on the basis of differences in their service structure and febrile neutropenia management. PARTICIPANTS Thirty-two participants were included in eight focus group discussions. PRIMARY OUTCOMES Experiences and perceptions of paediatric febrile neutropenia care, including possible future reductions in therapy. RESULTS Participants described a quest for certainty, in which they attempted to balance the uncertainty involved in understanding, expressing and negotiating risk with the illusion of certainty provided by strict protocols. Participants assessed risk using both formal and informal stratification tools, overlaid with emotional reactions to risk and experiences of risk within other situations. The benefits of certainty provided by protocols were counterbalanced by frustration at their strict constraints. The perceived benefits and harms of previous inpatient care informed participants' appraisals of future treatment strategies. CONCLUSIONS This study highlighted the previously underestimated harms of admission for febrile neutropenia and the paternalistic nature of decision making, along with the frustrations and challenges for all parties involved in febrile neutropenia care. It demonstrates how the same statistics, generated by systematic reviews, can be used by key stakeholders to interpret risk differently, and how families in particular can view the harms of therapeutic options as different from the outcomes used within the literature. It justifies a reassessment of current treatment strategies for these children and further exploration of the potential to introduce shared decision making.
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Affiliation(s)
- Jessica E Morgan
- Centre for Reviews and Dissemination, University of York, York, UK
| | - Bob Phillips
- Centre for Reviews and Dissemination, University of York, York, UK
- Department of Paediatric Haematology and Oncology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Lesley A Stewart
- Centre for Reviews and Dissemination, University of York, York, UK
| | - Karl Atkin
- Department of Health Sciences, University of York, York, UK
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Szymczak JE, Getz KD, Madding R, Fisher B, Raetz E, Hijiya N, Gramatges MM, Henry M, Mian A, Arnold SD, Aftandilian C, Collier AB, Aplenc R. Identifying patient- and family-centered outcomes relevant to inpatient versus at-home management of neutropenia in children with acute myeloid leukemia. Pediatr Blood Cancer 2018; 65:10.1002/pbc.26927. [PMID: 29286570 PMCID: PMC6857179 DOI: 10.1002/pbc.26927] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 11/08/2017] [Accepted: 11/09/2017] [Indexed: 11/12/2022]
Abstract
Efficacy of therapeutic strategies relative to patient- and family-centered outcomes in pediatric oncology must be assessed. We sought to identify outcomes important to children with acute myeloid leukemia and their families related to inpatient versus at-home management of neutropenia. We conducted qualitative interviews with 32 children ≥8 years old and 54 parents. Analysis revealed the impact of neutropenia management strategy on siblings, parent anxiety, and child sleep quality as being outcomes of concern across respondents. These themes were used to inform the design of a questionnaire that is currently being used in a prospective, multiinstitutional comparative effectiveness trial.
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Affiliation(s)
- Julia E. Szymczak
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania
- Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Kelly D. Getz
- Division of Oncology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Center for Pediatric Clinical Effectiveness, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Rachel Madding
- Division of Oncology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Center for Pediatric Clinical Effectiveness, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Brian Fisher
- Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania
- Center for Pediatric Clinical Effectiveness, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Division of Infectious Diseases, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Elizabeth Raetz
- Department of Pediatrics and Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Nobuko Hijiya
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Division of Pediatric Hematology Oncology, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois
| | - Maria M. Gramatges
- Department of Pediatrics, Section of Hematology-Oncology, Baylor College of Medicine, Houston, Texas
| | - Meret Henry
- Division of Hematology/Oncology, Children’s Hospital of Michigan, Wayne State University, Detroit, Michigan
| | - Amir Mian
- Department of Pediatric Hematology-Oncology, College of Medicine, Arkansas Children’s Hospital, University of Arkansas Medical Sciences, Little Rock, Arkansas
| | - Staci D. Arnold
- Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Catherine Aftandilian
- Division of Pediatric Hematology/Oncology, Stanford University School of Medicine and Lucile Packard Children’s Hospital, Palo Alto, California
| | - Anderson B. Collier
- Division of Hematology/Oncology, Department of Pediatrics, University of Mississippi Medical Center, Jackson, Mississippi
| | - Richard Aplenc
- Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania
- Division of Oncology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Center for Pediatric Clinical Effectiveness, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
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Antifungal Prophylaxis in Children Receiving Antineoplastic Chemotherapy. CURRENT FUNGAL INFECTION REPORTS 2018. [DOI: 10.1007/s12281-018-0311-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Adverse Effects of Intravenous Vancomycin-Based Prophylaxis during Therapy for Pediatric Acute Myeloid Leukemia. Antimicrob Agents Chemother 2018; 62:AAC.01838-17. [PMID: 29229640 DOI: 10.1128/aac.01838-17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 12/06/2017] [Indexed: 12/13/2022] Open
Abstract
Children and adolescents with acute myeloid leukemia (AML) are at risk of life-threatening bacterial infections, especially with viridans group streptococci. Primary antibacterial prophylaxis with vancomycin-based regimens reduces this risk but might increase the risks of renal or liver toxicity or Clostridium difficile infection (CDI). A retrospective review of data for patients treated for newly diagnosed AML at St. Jude Children's Research Hospital between 2002 and 2008 was conducted. Nephrotoxicity was classified according to pediatric risk, injury, failure, loss, and end-stage renal disease (pRIFLE) criteria and hepatotoxicity according to Common Terminology Criteria for Adverse Events (CTCAE) criteria. The risks of nephrotoxicity, hepatotoxicity, and CDI were compared between patients receiving vancomycin-based prophylaxis, no intravenous prophylaxis, or other prophylaxis. Generalized linear mixed models were used to address potential confounding. A total of 392 chemotherapy courses (108 with no intravenous prophylaxis, 218 with vancomycin-based prophylaxis, and 66 with other prophylaxis) for 111 patients were included. Development of pRIFLE risk, injury, and failure occurred in 190, 44, and 2 courses, respectively. Increases of at least one, two, and three grades for hepatotoxicity occurred in 189, 52, and 19 courses, respectively. After adjustment for confounders, vancomycin-based prophylaxis was not associated with nephrotoxicity or hepatotoxicity and reduced the risk of CDI, compared to no intravenous prophylaxis (0.9% versus 6.5%; P = 0.007) or other prophylactic regimens (0.9% versus 3.0%; P = 0.23). Despite concerns about vancomycin toxicity, vancomycin-based prophylaxis in pediatric patients with AML did not increase the risk of nephrotoxicity or hepatotoxicity and reduced the risk of CDI. Caution is advised to avoid contributing to antibiotic resistance.
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Gibson P, Pole JD, Lazor T, Johnston D, Portwine C, Silva M, Alexander S, Sung L. Treatment-related mortality in newly diagnosed pediatric cancer: a population-based analysis. Cancer Med 2018; 7:707-715. [PMID: 29473334 PMCID: PMC5852352 DOI: 10.1002/cam4.1362] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 12/20/2017] [Accepted: 01/04/2018] [Indexed: 11/07/2022] Open
Abstract
Using a previously developed reliable and valid treatment‐related mortality (TRM) definition, our objective was to describe the proportion of children newly diagnosed with cancer experiencing TRM and to identify risk factors for TRM in a population‐based cohort. We included children with cancer <19 years diagnosed and treated in Ontario who were diagnosed between 2003 and 2012. Children with cancer were identified using data in a provincial registry. Cumulative incidence of TRM was calculated where progressive disease death was considered a competing event. Among the 5179 children included, 179 had TRM, 478 died of progressive disease, and 4522 were still alive. At 5 years, the cumulative incidence of TRM among the entire cohort was 3.9% (95% confidence interval (CI) 3.3–4.5%). When compared to brain tumor patients, leukemia and lymphoma patients had a significantly higher risk of TRM (hazard ratio (HR) 2.5, 95% CI: 1.6–4.0; P < 0.0001). Infants were at significantly higher risk of TRM across diagnostic groups. Other factors associated with higher risks of TRM were metastatic disease (P < 0.0001), diagnosis prior to 1 January 2008 (P = 0.001), hematopoietic stem cell transplantation (HSCT) (P < 0.0001), and relapse (P < 0.0001). The 5‐year cumulative incidence of TRM was 3.9% among newly diagnosed children with cancer. Infants were at higher risk of TRM across diagnostic groups. Other risk factors for TRM were leukemia or lymphoma, metastatic disease, earlier diagnosis year, HSCT, and relapse. Future work should further refine prognostic factors by specific cancer diagnosis to best understand when and how to intervene to improve outcomes.
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Affiliation(s)
- Paul Gibson
- Division of Haematology/Oncology, Children's Hospital, London Health Sciences Centre, 800 Commissioners Rd E, London, Ontario, N6A 5W9, Canada
| | - Jason D Pole
- Pediatric Oncology Group of Ontario, 480 University Ave, Toronto, Ontario, M5G 1V2, Canada
| | - Tanya Lazor
- Program in Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay St, Toronto, Ontario, M5G 0A4, Canada
| | - Donna Johnston
- Division of Hematology/Oncology, Children's Hospital of Eastern Ontario, 401 Smyth Rd, Ottawa, Ontario, K1H 8L1, Canada
| | - Carol Portwine
- Department of Pediatrics, McMaster Children's Hospital, 1200 Main St West, Hamilton, Ontario, L8N 3Z5, Canada
| | - Mariana Silva
- Department of Pediatrics, Kingston General Hospital, 76 Stuart St, Kingston, Ontario, K7L 2V7, Canada
| | - Sarah Alexander
- Division of Haematology/Oncology, The Hospital for Sick Children, 555 University Ave, Toronto, Ontario, M5G 1X8, Canada
| | - Lillian Sung
- Program in Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay St, Toronto, Ontario, M5G 0A4, Canada.,Division of Haematology/Oncology, The Hospital for Sick Children, 555 University Ave, Toronto, Ontario, M5G 1X8, Canada
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Successes and challenges in the treatment of pediatric acute myeloid leukemia: a retrospective analysis of the AML-BFM trials from 1987 to 2012. Leukemia 2018; 32:2167-2177. [PMID: 29550834 PMCID: PMC6170392 DOI: 10.1038/s41375-018-0071-7] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 01/18/2018] [Accepted: 01/24/2018] [Indexed: 12/25/2022]
Abstract
Overall survival (OS) of pediatric patients with acute myeloid leukemia (AML) increased in recent decades. However, it remained unknown whether advances in first-line treatment, supportive care, or second-line therapy mainly contributed to this improvement. Here, we retrospectively analyzed outcome and clinical data of 1940 pediatric AML patients (younger than 18 years of age), enrolled in the population-based AML-BFM trials between 1987 and 2012. While 5-year probability of OS (pOS) increased from 49 ± 3% (1987-1992) to 76 ± 4% (2010-2012; p < 0.0001), probability of event-free survival only improved from 41 ± 3% (1987-1992) to 50 ± 2% (1993-1998; p = 0.02) after introduction of high-dose cytarabine/mitoxantrone, but remained stable since then. Non-response and relapse rates stayed constant despite intensified first-line therapy (p = 0.08 and p = 0.17). Reduced fatal bleedings and leukostasis translated into fewer early deaths (8.1%vs. 2.2%; p = 0.001). Strikingly, pOS after non-response (13 ± 5% (1987-1992) vs. 43 ± 7% (2005-2010); p < 0.0001) or relapse (19 ± 4% vs. 45 ± 4%; p < 0.0001) improved. After 1999, more relapsed or refractory patients underwent hematopoietic stem cell transplantation (HSCT) with increased pOS after HSCT (29 ± 5% (1993-1998) vs. 50 ± 4% (2005-2010); p < 0.0001). Since efficacy of salvage therapy mainly contributed to better outcome in pediatric AML, our analysis indicates that a better allocation of patients, who cannot be cured with conventional chemotherapy, to an early "salvage-like" therapy is necessary.
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Klein K, de Haas V, Kaspers GJL. Clinical challenges in de novo pediatric acute myeloid leukemia. Expert Rev Anticancer Ther 2018; 18:277-293. [DOI: 10.1080/14737140.2018.1428091] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Kim Klein
- Department of Pediatric Oncology/Hematology, VU University Medical Center, Amsterdam, The Netherlands
| | - Valérie de Haas
- Dutch Childhood Oncology Group, The Hague, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Gertjan J. L. Kaspers
- Department of Pediatric Oncology/Hematology, VU University Medical Center, Amsterdam, The Netherlands
- Dutch Childhood Oncology Group, The Hague, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
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Meta-ethnography of experiences of early discharge, with a focus on paediatric febrile neutropenia. Support Care Cancer 2018; 26:1039-1050. [PMID: 29285558 PMCID: PMC5847030 DOI: 10.1007/s00520-017-3983-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 11/15/2017] [Indexed: 11/02/2022]
Abstract
PURPOSE (STATING THE MAIN PURPOSES AND RESEARCH QUESTION) Many children have no significant sequelae of febrile neutropenia. A systematic review of clinical studies demonstrated patients at low risk of septic complications can be safely treated as outpatients using oral antibiotics with low rates of treatment failure. Introducing earlier discharge may improve quality of life, reduce hospital acquired infection and reduce healthcare service pressures. However, the review raised concerns that this might not be acceptable to patients, families and healthcare professionals. METHODS This qualitative synthesis explored experiences of early discharge in paediatric febrile neutropenia, including reports from studies of adult febrile neutropenia and from other paediatric conditions. Systematic literature searching preceded meta-ethnographic analysis, including reading the studies and determining relationships between studies, translation of studies and synthesis of these translations. RESULTS Nine papers were included. The overarching experience of early discharge is that decision-making is complex and difficult and influenced by fear, timing and resources. From this background, we identified two distinct themes. First, participants struggled with practical consequences of treatment regimens, namely childcare, finances and follow-up. A second theme identified social and emotional issues, including isolation, relational and environmental challenges. Linking these, participants considered continuity of care and the need for information important. CONCLUSIONS Trust and confidence appeared interdependent with resources available to families-both are required to manage early discharge. Socially informed resilience is relevant to facilitating successful discharge strategies. Interventions which foster resilience may mediate the ability and inclination of families to accept early discharge. Services have an important role in recognising and enhancing resilience.
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Gruber TA, Rubnitz JE. Acute Myeloid Leukemia in Children. Hematology 2018. [DOI: 10.1016/b978-0-323-35762-3.00062-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Gerbing RB, Alonzo TA, Sung L, Gamis AS, Meshinchi S, Plon SE, Bertuch AA, Gramatges MM. Shorter Remission Telomere Length Predicts Delayed Neutrophil Recovery After Acute Myeloid Leukemia Therapy: A Report From the Children's Oncology Group. J Clin Oncol 2017; 34:3766-3772. [PMID: 27354474 DOI: 10.1200/jco.2016.66.9622] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Purpose Suboptimal outcomes for children with acute myeloid leukemia (AML) necessitate maximally intensive therapy. Consequently, serious adverse events, such as prolonged periods of profound myelosuppression, contribute to AML treatment-related mortality. Telomeres, the repetitive DNA-protein structures at chromosome ends, influence cellular replicative capacity in that critically short telomeres can induce cell senescence or apoptosis. Our objective was to evaluate the impact of telomere length on duration of post-therapy neutropenia in a pediatric AML cohort. Patients and Methods Patients were diagnosed with de novo AML, enrolled in Children's Oncology Group study AAML0531, and included those with (n = 53) and without (n = 62) significantly delayed neutrophil recovery after chemotherapy. We used quantitative polymerase chain reaction to measure telomere content (TC), a validated proxy for telomere length, from remission bone marrow samples obtained after the second induction chemotherapy course. Results Less TC was significantly associated with prolonged neutropenia after the fourth ( P < .001) and fifth chemotherapy courses ( P = .002). Cox regression adjusting for age at diagnosis confirmed that TC remained independently predictive of time to recovery of absolute neutrophil count for both the fourth and fifth courses ( P = .002 and .009, respectively). DNA from patients was analyzed for germline mutations in four telomere maintenance genes associated with telomere biology disorders. Sequence analysis revealed no enrichment of rare or novel variants in the delayed recovery group. Conclusion Our results suggest that TC at end of AML induction is associated with hematopoietic reconstitution capacity independently of age and may identify those at highest risk for markedly delayed bone marrow recovery after AML therapy.
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Affiliation(s)
- Robert B Gerbing
- Robert B. Gerbing and Todd A. Alonzo, Children's Oncology Group, Monrovia; Todd A. Alonzo, University of Southern California, Los Angeles, CA; Lillian Sung, Hospital for Sick Children, Toronto, Ontario, Canada; Alan S. Gamis, Children's Mercy Hospitals and Clinics, Kansas City, MO; Soheil Meshinchi, University of Washington School of Medicine, Seattle, WA; and Sharon E. Plon, Alison A. Bertuch, and Maria M. Gramatges, Baylor College of Medicine, Houston, TX
| | - Todd A Alonzo
- Robert B. Gerbing and Todd A. Alonzo, Children's Oncology Group, Monrovia; Todd A. Alonzo, University of Southern California, Los Angeles, CA; Lillian Sung, Hospital for Sick Children, Toronto, Ontario, Canada; Alan S. Gamis, Children's Mercy Hospitals and Clinics, Kansas City, MO; Soheil Meshinchi, University of Washington School of Medicine, Seattle, WA; and Sharon E. Plon, Alison A. Bertuch, and Maria M. Gramatges, Baylor College of Medicine, Houston, TX
| | - Lillian Sung
- Robert B. Gerbing and Todd A. Alonzo, Children's Oncology Group, Monrovia; Todd A. Alonzo, University of Southern California, Los Angeles, CA; Lillian Sung, Hospital for Sick Children, Toronto, Ontario, Canada; Alan S. Gamis, Children's Mercy Hospitals and Clinics, Kansas City, MO; Soheil Meshinchi, University of Washington School of Medicine, Seattle, WA; and Sharon E. Plon, Alison A. Bertuch, and Maria M. Gramatges, Baylor College of Medicine, Houston, TX
| | - Alan S Gamis
- Robert B. Gerbing and Todd A. Alonzo, Children's Oncology Group, Monrovia; Todd A. Alonzo, University of Southern California, Los Angeles, CA; Lillian Sung, Hospital for Sick Children, Toronto, Ontario, Canada; Alan S. Gamis, Children's Mercy Hospitals and Clinics, Kansas City, MO; Soheil Meshinchi, University of Washington School of Medicine, Seattle, WA; and Sharon E. Plon, Alison A. Bertuch, and Maria M. Gramatges, Baylor College of Medicine, Houston, TX
| | - Soheil Meshinchi
- Robert B. Gerbing and Todd A. Alonzo, Children's Oncology Group, Monrovia; Todd A. Alonzo, University of Southern California, Los Angeles, CA; Lillian Sung, Hospital for Sick Children, Toronto, Ontario, Canada; Alan S. Gamis, Children's Mercy Hospitals and Clinics, Kansas City, MO; Soheil Meshinchi, University of Washington School of Medicine, Seattle, WA; and Sharon E. Plon, Alison A. Bertuch, and Maria M. Gramatges, Baylor College of Medicine, Houston, TX
| | - Sharon E Plon
- Robert B. Gerbing and Todd A. Alonzo, Children's Oncology Group, Monrovia; Todd A. Alonzo, University of Southern California, Los Angeles, CA; Lillian Sung, Hospital for Sick Children, Toronto, Ontario, Canada; Alan S. Gamis, Children's Mercy Hospitals and Clinics, Kansas City, MO; Soheil Meshinchi, University of Washington School of Medicine, Seattle, WA; and Sharon E. Plon, Alison A. Bertuch, and Maria M. Gramatges, Baylor College of Medicine, Houston, TX
| | - Alison A Bertuch
- Robert B. Gerbing and Todd A. Alonzo, Children's Oncology Group, Monrovia; Todd A. Alonzo, University of Southern California, Los Angeles, CA; Lillian Sung, Hospital for Sick Children, Toronto, Ontario, Canada; Alan S. Gamis, Children's Mercy Hospitals and Clinics, Kansas City, MO; Soheil Meshinchi, University of Washington School of Medicine, Seattle, WA; and Sharon E. Plon, Alison A. Bertuch, and Maria M. Gramatges, Baylor College of Medicine, Houston, TX
| | - Maria M Gramatges
- Robert B. Gerbing and Todd A. Alonzo, Children's Oncology Group, Monrovia; Todd A. Alonzo, University of Southern California, Los Angeles, CA; Lillian Sung, Hospital for Sick Children, Toronto, Ontario, Canada; Alan S. Gamis, Children's Mercy Hospitals and Clinics, Kansas City, MO; Soheil Meshinchi, University of Washington School of Medicine, Seattle, WA; and Sharon E. Plon, Alison A. Bertuch, and Maria M. Gramatges, Baylor College of Medicine, Houston, TX
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Wolf J, Tang L, Flynn PM, Pui CH, Gaur AH, Sun Y, Inaba H, Stewart T, Hayden RT, Hakim H, Jeha S. Levofloxacin Prophylaxis During Induction Therapy for Pediatric Acute Lymphoblastic Leukemia. Clin Infect Dis 2017; 65:1790-1798. [PMID: 29020310 PMCID: PMC5850441 DOI: 10.1093/cid/cix644] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/24/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Infection is the most important cause of treatment-related morbidity and mortality in pediatric patients treated for acute lymphoblastic leukemia (ALL). Although routine in adults with leukemia, antibacterial prophylaxis is controversial in pediatrics because of insufficient evidence for its efficacy or antibiotic choice and concerns about promoting antibiotic resistance and Clostridium difficile infection. METHODS This was a single-center, observational cohort study of patients with newly diagnosed ALL, comparing prospectively collected infection-related outcomes in patients who received no prophylaxis, levofloxacin prophylaxis, or other prophylaxis during induction therapy on the total XVI study. A propensity score-weighted logistic regression model was used to adjust for confounders. RESULTS Of 344 included patients, 173 received no prophylaxis, 69 received levofloxacin prophylaxis, and 102 received other prophylaxis regimens. Patients receiving prophylaxis had longer duration of neutropenia. Prophylaxis reduced the odds of febrile neutropenia, likely bacterial infection, and bloodstream infection by ≥70%. Levofloxacin prophylaxis alone reduced these infections, but it also reduced cephalosporin, aminoglycoside, and vancomycin exposure and reduced the odds of C. difficile infection by >95%. No increase in breakthrough infections with antibiotic-resistant organisms was seen, but this cannot be excluded. CONCLUSIONS This is the largest study to date of antibacterial prophylaxis during induction therapy for pediatric ALL and the first to include a broad-spectrum fluoroquinolone. Prophylaxis prevented febrile neutropenia and systemic infection. Levofloxacin prophylaxis also minimized the use of treatment antibiotics and drastically reduced C. difficile infection. Although long-term antibiotic-resistance monitoring is needed, these data support using targeted prophylaxis with levofloxacin in children undergoing induction chemotherapy for ALL. CLINICAL TRIALS REGISTRATION NCT00549848.
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Affiliation(s)
- Joshua Wolf
- Departments of Infectious Diseases
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis
- Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | | | - Patricia M Flynn
- Departments of Infectious Diseases
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis
| | - Ching-Hon Pui
- Oncology
- Pathology, St. Jude Children’s Research Hospital
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis
| | - Aditya H Gaur
- Departments of Infectious Diseases
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis
| | | | - Hiroto Inaba
- Oncology
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis
| | | | | | | | - Sima Jeha
- Oncology
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis
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Abstract
The development and approval of novel, effective therapies for acute myeloid leukemia (AML) has lagged behind other malignancies. Judging success of therapy with meaningful endpoints is critical to development of new treatments. Overall survival (OS) has typically been the parameter necessary for regulatory approval of experimental therapy in AML. Herein, we discuss different strategies to define outcomes for patients with AML and their relative challenges.
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Affiliation(s)
- Joshua P Sasine
- UCLA Department of Medicine, Division of Hematology and Oncology, Orthopedic Hospital Research Center/BSRB, 615 Charles E. Young Drive South, Room 545, Los Angeles, CA, 90095, USA.
| | - Gary J Schiller
- UCLA Department of Medicine, Division of Hematology and Oncology, Aramont Foundation for Clinical/Translational Research in Human Malignancies, Room 42-121 Center for Health Sciences, David Geffen School of Medicine at UCLA, Los Angeles, 90095, CA, USA
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Interleukin-6 levels predict event-free survival in pediatric AML and suggest a mechanism of chemotherapy resistance. Blood Adv 2017; 1:1387-1397. [PMID: 29296780 DOI: 10.1182/bloodadvances.2017007856] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 07/05/2017] [Indexed: 12/30/2022] Open
Abstract
The tumor microenvironment can protect cancer cells from conventional anticancer therapies. Thus, targeting these protective mechanisms could eradicate therapy-resistant cancer cells and improve outcomes. Interleukin-6 (IL-6) provides extrinsic protection for several solid tumors and multiple myeloma. In pediatric acute myeloid leukemia (AML), IL-6-induced STAT3 signaling frequently becomes stronger at relapse, and increases in IL-6-induced STAT3 activity are associated with inferior survival after relapse. These findings suggested that the IL-6-induced STAT3 pathway may promote chemotherapy resistance and disease progression. Thus, we investigated the dysregulation of IL-6 levels in the bone marrow niche in pediatric patients with AML and the association between IL-6 levels and outcome. We measured levels of over 40 cytokines and growth factors in plasma from diagnostic bone marrow aspirates of 45 pediatric AML patients and 7 healthy sibling controls. Of the measured cytokines, only IL-6 levels were associated with event-free survival. Importantly, the effect of elevated IL-6 was most striking among children classified as having a low risk of relapse. In these patients, 5-year event-free survival was 82.5% ± 11% for patients with low IL-6 levels at diagnosis (n = 14) compared with 17.3% ± 11% for patients with elevated IL-6 (n = 13, log-rank P = .0003). In vitro, exogenous IL-6 reduced mitoxantrone-induced apoptosis in cell lines and primary pediatric AML samples. These results suggest that IL-6 levels at diagnosis could be used to help identify children at high risk of relapse, particularly those who are otherwise classified as low risk by current algorithms. Moreover, the IL-6 pathway could represent a target for overcoming environment-mediated chemotherapy resistance.
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