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Dam M, Lynggaard LS, Jónsson ÓG, Saulyte Trakymiene S, Palk K, Jarvis K, Andrés-Jensen L, Tuckuviene R, Albertsen BK. Sequelae and post-thrombotic syndrome after venous thromboembolism in acute lymphoblastic leukemia survivors treated on the NOPHO ALL2008 protocol. Pediatr Blood Cancer 2024; 71:e30937. [PMID: 38480517 DOI: 10.1002/pbc.30937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 02/09/2024] [Accepted: 02/22/2024] [Indexed: 04/24/2024]
Abstract
The treatment of acute lymphoblastic leukemia (ALL) is frequently complicated by toxicity, including venous thromboembolism (VTE) affecting roughly 8% of patients. VTE can lead to post-thrombotic syndrome (PTS), a group of signs and symptoms developed as a complication to deep venous thrombosis (DVT), imposing risk of permanent disability and reduced quality of life (QoL). PTS prevalence ranges from 0% to 70%, reflecting very heterogenous cohorts and assessment tools. We aimed to estimate sequelae, including PTS and QoL in children and adults (<45 years old) who had a DVT during ALL treatment. PTS and QoL scores were obtained through use of Villalta and Modified Villalta Scale, PedsQL, and Short Form-36 questionnaires. The cohort comprised 20 children (<18 years) and seven adults (median age: 12.9 years, range: 2-44 years) at the time of DVT diagnosis. In total, 25 ALL survivors underwent PTS examination. The examination took place when survivors were 7-48 years (median age: 20.3 years, median follow-up time 6.8 years). QoL was assessed correlating cases with three matching ALL survivors without VTE. Two adults (15.4%) showed mild or moderate PTS. Eight children (66.7%) were diagnosed with mild PTS, while three cases had collaterals as sole symptoms. Pain or symptoms affecting daily life were reported by 16%. No difference in QoL was found (p = .9). This study underscores the need for comprehensive population-based investigations with validation of PTS instruments in ALL survivors.
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Affiliation(s)
- Merete Dam
- Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, and Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Line Stensig Lynggaard
- Department of Hematology, Aarhus University Hospital, and Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | | | - Sonata Saulyte Trakymiene
- Clinic of Children's Diseases, Faculty of Medicine, Vilnius University, Hospital Santaros Klinikos, Vilnius, Lithuania
| | - Katrin Palk
- The North Estonia Medical Centre, Tallinn, Estonia
| | - Kirsten Jarvis
- Department of Paediatric Haematology and Oncology, Oslo University Hospital, Oslo, Norway
| | - Liv Andrés-Jensen
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Ruta Tuckuviene
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Birgitte Klug Albertsen
- Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, and Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Athale U, Halton J, Gayowsky A, Chan AKC, Pole JD. Development and validation of thromboembolism diagnostic algorithms in children with cancer from real-world data. Pediatr Res 2024:10.1038/s41390-024-03082-x. [PMID: 38388822 DOI: 10.1038/s41390-024-03082-x] [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] [Received: 10/15/2023] [Revised: 01/03/2024] [Accepted: 01/21/2024] [Indexed: 02/24/2024]
Abstract
OBJECTIVE To evaluate the accuracy of diagnostic algorithms developed using the International Classification of Diseases (ICD-9-CM and ICD-10-CA) diagnostic codes and physician billing codes for thromboembolism (TE) from health administrative data compared to chart review diagnoses of TE in children with cancer. METHODS Using data linkage between the Pediatric Oncology Group of Ontario Network Information System (Ontario pediatric cancer registry) and various administrative data housed at ICES, eight algorithms were developed including a single reference to one of the billing codes, multiple references with varying time intervals, and combinations of various billing codes during primary cancer therapy for the whole cohort and, for early (<04/2002) and later (≥04/2002, solely ICD-10 codes) periods. Reference standard was chart review data from prior studies (from 1990 to 2016) among children (≤19 years) with cancer and radiologically confirmed TE. RESULTS Records of 2056 patients diagnosed with cancer at two participating sites during study period were reviewed; 112 had radiologically confirmed TE. The algorithm with addition of anticoagulation utilization codes was the best performing algorithm (sensitivity = 0.76;specificity = 0.85). With use of ICD-10 only codes, sensitivity of the same algorithm improved to 0.84 with specificity of 0.80. CONCLUSION This study provides a valid approach for ascertaining pediatric TE using real-world data. IMPACT Research in pediatric thrombosis, especially cancer-related thrombosis, is limited mainly due to small-sized studies. Real-world data provide ready access to large and diverse populations. However, there are no validated algorithms for identifying thrombosis in real-world data for children. An algorithm based on combination of thrombosis and anticoagulation utilization codes had 76% sensitivity and 85% specificity to identify diagnosis of thrombosis in children in administrative data. This study provides a valid approach for ascertaining pediatric thrombosis using real-world data and offers a good avenue to advance pediatric thrombosis research.
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Affiliation(s)
- Uma Athale
- Division of Hematology/Oncology, McMaster Children's Hospital, Hamilton Health Sciences, Hamilton, Ontario, Canada.
- Pediatrics, McMaster University, Hamilton, Ontario, Canada.
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada.
| | - Jacqueline Halton
- Division of Hematology/Oncology, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
- Pediatrics, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Anthony K C Chan
- Division of Hematology/Oncology, McMaster Children's Hospital, Hamilton Health Sciences, Hamilton, Ontario, Canada
- Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - Jason D Pole
- Centre for Health Services Research, The University of Queensland, Queensland, Australia
- ICES, Toronto, Ontario, Canada
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3
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Pelland-Marcotte MC, Kulkarni K, Tran TH, Stammers D, Gupta S, Sung L, Athale UH. Risk factors and clinical impact of thrombosis during induction chemotherapy for pediatric acute lymphoblastic leukemia: A report from CYP-C. Am J Hematol 2024; 99:274-283. [PMID: 38164978 DOI: 10.1002/ajh.27171] [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: 11/02/2023] [Accepted: 11/08/2023] [Indexed: 01/03/2024]
Abstract
Thromboembolism (TE) is associated with reduced survival in pediatric acute lymphoblastic leukemia (ALL). It has been hypothesized that TE might signal leukemic aggressiveness. The objective was to determine risk factors for TE during ALL induction (TEind ) therapy and whether TEind is associated with treatment refractoriness. This retrospective cohort study using the population-based Cancer in Young People Canada (CYP-C) registry included children <15 years of age diagnosed with ALL (2000-2019) and treated at one of 12 Canadian pediatric centers outside of Ontario. Univariate and multivariable logistic regression models were used to determine risk factors for TEind and whether TEind predicted induction failure and ALL treatment intensification. The impact of TEind on overall and event-free survival was estimated using Cox proportional hazard regression models. The study included 2589 children, of which 45 (1.7%) developed a TEind . Age (<1 year and ≥10 years vs. 1-<10 years), T-cell phenotype, high-risk ALL, and central nervous system involvement were all associated with TEind in univariate analysis. Age and T-cell phenotype remained independent predictors of TEind in multivariable analysis. Induction failure occurred in 53 patients (2.1%). TEind was not associated with induction failure (OR: not estimable) or treatment intensification (adjusted OR [95% CI]: 0.66 [0.26-1.69]). TEind was independently associated with overall survival (adjusted HR [95% CI]: 2.54 [1.20-5.03]) but not event-free survival (adjusted HR [95% CI] 1.86 [0.98-3.51]). In this population-based study of children treated with contemporary chemotherapy protocols, TEind was associated with age and T-cell phenotype and mortality but did not predict induction failure.
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Affiliation(s)
| | - Ketan Kulkarni
- Division of Hematology-Oncology, Department of Pediatrics, IWK Health Centre, Halifax, Nova Scotia, Canada
| | - Thai Hoa Tran
- Division of Pediatric Hematology-Oncology, Charles-Bruneau Cancer Center, CHU Sainte-Justine, Montréal, Quebec, Canada
- Axis of Immune Diseases and Cancer, CHU Sainte-Justine Research Center, Montréal, Quebec, Canada
| | - David Stammers
- Division of Immunology, Hematology, Oncology& Palliative Care, Stollery's Children Hospital, Edmonton, Alberta, Canada
| | - Sumit Gupta
- Division of Hematology-Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
- Program in Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, Toronto, Ontario, Canada
| | - Lillian Sung
- Division of Hematology-Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
- Program in Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, Toronto, Ontario, Canada
| | - Uma H Athale
- Division of Haematology/Oncology, McMaster Children's Hospital, and Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
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O'Brien SH, Rodriguez V, Lew G, Newburger JW, Schultz CL, Orgel E, Derr K, Ranalli MA, Esbenshade AJ, Hochberg J, Kang HJ, Dinikina Y, Mills D, Donovan M, Dyme JL, Favatella NA, Mitchell LG. Apixaban versus no anticoagulation for the prevention of venous thromboembolism in children with newly diagnosed acute lymphoblastic leukaemia or lymphoma (PREVAPIX-ALL): a phase 3, open-label, randomised, controlled trial. Lancet Haematol 2024; 11:e27-e37. [PMID: 37980924 DOI: 10.1016/s2352-3026(23)00314-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 10/11/2023] [Accepted: 10/17/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Paediatric patients with acute lymphoblastic leukaemia or lymphoma are at increased risk of venous thromboembolism resulting in increased mortality and morbidity. We hypothesised that apixaban, a direct oral anticoagulant, would safely reduce venous thromboembolism in this patient population. METHODS PREVAPIX-ALL was a phase 3, open-label, randomised, controlled trial conducted in 74 paediatric hospitals in 9 countries. Participants aged 1 year or older to younger than 18 years with newly diagnosed acute lymphoblastic leukaemia (pre-B cell or T cell) or lymphoblastic lymphoma (B cell or T cell immunophenotype) and a central venous line in place throughout induction were randomly assigned 1:1 to standard of care (SOC, ie, no systemic anticoagulation) or weight-adjusted twice-daily apixaban during induction. Randomisation was performed centrally and stratified by age (those <10 years or those ≥10 years). Participants weighing 35 kg or less were administered 2·5 mg twice daily of apixaban as a 2·5 mg tablet, 0·5 mg tablets, or 0·4 mg/mL oral solution, while those weighing more than 35 kg were administered weight-adjusted prophylactic doses using 0·5 mg tablets or the 0·4 mg/mL oral solution twice daily. Primary outcomes were assessed by a blinded central adjudication committee. The primary efficacy outcome for the intention to treat population was the composite of symptomatic or clinically unsuspected venous thromboembolism, the primary safety outcome was major bleeding, and secondary safety outcomes included clinically relevant non-major (CRNM) bleeding. Patients were screened for venous thromboembolism by ultrasound and echocardiogram at the end of induction. The trial was registered with ClinicalTrials.gov (NCT02369653) and is now complete. FINDINGS Between Oct 22, 2015, and June 4, 2021, 512 participants were randomly assigned and included in analyses (222 [43%] female and 290 [57%] male; 388 [76%] White, 52 [10%] Asian, 24 [5%] Black or African American, and 48 [9%] other races; and 122 [24%] Hispanic or Latino ethnicity). During a median follow-up period of 27 days (IQR 26-28), 31 (12%) of 256 patients on apixaban had a composite venous thromboembolism compared with 45 (18%) of 256 participants receiving SOC (relative risk [RR] 0·69, 95% CI 0·45-1·05; p=0·080). Two major bleeding events occurred in each group (RR 1·0, 95% CI 0·14-7·01; p=1·0). A higher incidence of CRNM bleeding, primarily grade 1 or 2 epistaxis, occurred in the apixaban group (11 [4%] of 256 participants) compared with the SOC group (3 [1%] of 256; RR 3·67, 95% CI 1·04-12·97, p=0·030). The most frequent grade 3-5 adverse events in both groups were thrombocytopenia (n=28 for the apixaban group and n=20 for the SOC group) or platelet count decreased (n=49 and n=45), anaemia (n=77 and n=74), febrile neutropenia (n=27 and n=20), and neutropenia (n=16 and n=17) or neutrophil count decreased (n=22 and n=25). Five deaths occurred, which were due to infection (n=3 in the SOC group), cardiac arrest (n=1 in apixaban group), and haemorrhagic cerebral sinus vein thrombosis (n=1 in the SOC group). There was one apixaban-related death (coagulopathy and haemorrhage after cardiac arrest of unknown cause). INTERPRETATION PREVAPIX-ALL is, to our knowledge, the first trial assessing primary thromboprophylaxis using a direct oral anticoagulant in paediatric patients with acute lymphoblastic leukaemia or lymphoma. No statistically significant treatment benefit was identified in participants receiving apixaban. Major and CRNM bleeding were infrequent overall, but a higher incidence of CRNM bleeding (primarily epistaxis in younger children) occurred in participants receiving apixaban. For patients deemed to be at particularly high risk of thrombosis, PREVAPIX-ALL provides encouraging safety data for the use of apixaban in clinical settings in which the potential benefits are thought to outweigh the risk of bleeding. FUNDING Bristol Myers Squibb-Pfizer Alliance.
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Affiliation(s)
- Sarah H O'Brien
- Division of Pediatric Hematology and Oncology, Nationwide Children's Hospital, Columbus, OH, USA; The Ohio State University, Columbus, OH, USA.
| | - Vilmarie Rodriguez
- Division of Pediatric Hematology and Oncology, Nationwide Children's Hospital, Columbus, OH, USA; The Ohio State University, Columbus, OH, USA
| | - Glen Lew
- Bristol Myers Squibb, Lawrenceville, NJ, USA
| | - Jane W Newburger
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Corinna L Schultz
- Nemours Center for Cancer and Blood Disorders, Nemours Children's Health, Wilmington, DE, USA
| | - Etan Orgel
- Cancer and Blood Disease Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA; Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Kimberly Derr
- Department of Pediatric Oncology, Geisinger, Danville, PA, USA
| | - Mark A Ranalli
- Division of Pediatric Hematology and Oncology, Nationwide Children's Hospital, Columbus, OH, USA; The Ohio State University, Columbus, OH, USA
| | - Adam J Esbenshade
- Monroe Carell Jr Children's Hospital at Vanderbilt, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jessica Hochberg
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - Hyoung Jin Kang
- Department of Pediatrics, Seoul National University College of Medicine, Seoul National University Cancer Research Institute, Wide River Institute of Immunology, Seoul National University Children's Hospital, Seoul, South Korea
| | - Yulia Dinikina
- Department of Chemotherapy for Oncohematological Diseases and Bone Marrow Transplantation for Children, Almazov National Medical Research Centre, Saint Petersburg, Russian
| | - Donna Mills
- Bristol Myers Squibb, Lawrenceville, NJ, USA
| | | | | | | | - Lesley G Mitchell
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
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5
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Ekpa QL, Akahara PC, Anderson AM, Adekoya OO, Ajayi OO, Alabi PO, Okobi OE, Jaiyeola O, Ekanem MS. A Review of Acute Lymphocytic Leukemia (ALL) in the Pediatric Population: Evaluating Current Trends and Changes in Guidelines in the Past Decade. Cureus 2023; 15:e49930. [PMID: 38179374 PMCID: PMC10766210 DOI: 10.7759/cureus.49930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2023] [Indexed: 01/06/2024] Open
Abstract
Acute lymphocytic leukemia (ALL) is a commonly diagnosed cancer in children. Despite technological advancements to improve treatment and survival rates, there has been a steady increase in the incidence of ALL and treatment failures. This paper discusses the pathogenic interaction between genetic and environmental factors leading to childhood ALL. It evaluates the current treatment guidelines and notable obstacles leading to resistance, relapse, and treatment toxicities. The review evaluates a 10-year trend in the management guidelines of pediatric ALL through a systematic literature review of records from 2012 to 2023. Findings show that improvement in the five-year survival rates, notwithstanding rates of relapse and incurable diseases, is still high. Furthermore, several risk factors, including an interplay between genetic and environmental factors, are largely contributory to the outcome of ALL treatments and its overall incidence. Moreover, huge financial costs have remained a significant challenge in outcomes. There remains a need to provide individualized treatment plans, shared decision-making, and goals of care as parts of the management guidelines for the best possible outcomes. We expect that future advancements will increase overall survival rates and disease-free years.
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Affiliation(s)
- Queen L Ekpa
- General Practice, Conestoga College, Kitchener, CAN
| | | | - Alexis M Anderson
- Pediatric Medicine, St. George's University, School of Medicine, St. George's, GRD
| | | | - Olamide O Ajayi
- Pediatrics, Medway Maritime Hospital, Kent, GBR
- Internal Medicine, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Sagamu, NGA
| | - Peace O Alabi
- Pediatrics, University of Abuja Teaching Hospital, Abuja, NGA
| | - Okelue E Okobi
- Family Medicine, Larkin Community Hospital Palm Springs Campus, Hialeah, USA
- Family Medicine, Medficient Health Systems, Laurel, USA
- Family Medicine, Lakeside Medical Center, Belle Glade, USA
| | | | - Medara S Ekanem
- General Medicine, Babcock University Teaching Hospital, Ilishan-Remo, NGA
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6
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Mills K, Hill C, King M, Pauley JL, Cober MP, Fenn NE, Omecene NE, Smith T, Sierra CM. Just DOAC: Use of direct-acting oral anticoagulants in pediatrics. Am J Health Syst Pharm 2023; 80:412-422. [PMID: 36610740 DOI: 10.1093/ajhp/zxac387] [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: 12/23/2022] [Indexed: 01/09/2023] Open
Abstract
PURPOSE The aim of this article is to provide an overview of the current literature for direct-acting oral anticoagulant (DOAC) use in pediatric patients and summarize ongoing trials. SUMMARY In treatment of venous thromboembolism (VTE) in pediatric patients, evidence supports use of both dabigatran and rivaroxaban. Dabigatran has been shown to be noninferior to standard of care (SOC) in terms of efficacy, with similar bleeding rates. Similarly, treatment with rivaroxaban in children with acute VTE resulted in a low recurrence risk and reduced thrombotic burden, without increased risk of bleeding, compared to SOC. Treatment of pediatric cerebral venous thrombosis as well as central venous catheter-related VTE with rivaroxaban appeared to be both safe and efficacious and similar to that with SOC. Dabigatran also has a favorable safety profile for prevention of VTE, and rivaroxaban has a favorable safety profile for VTE prevention in children with congenital heart disease. Many studies with several different DOACs are ongoing to evaluate both safety and efficacy in unique patient populations, as well as VTE prevention. CONCLUSION The literature regarding pediatric VTE treatment and prophylaxis is growing, but the need for evidence-based pediatric guidelines remains. Additional long-term, postauthorization studies are warranted to further elucidate safety and efficacy in clinical scenarios excluded in clinical trials. Additional data on safety, efficacy, and dosing strategies for reversal agents are also necessary, especially as the use of DOACs becomes more common in the pediatric population.
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Affiliation(s)
| | - Carolyn Hill
- Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - Morgan King
- Cleveland Clinic Fairview Hospital, Cleveland, OH, USA
| | | | - M Petrea Cober
- College of Pharmacy, Akron Children's Hospital/Northeast Ohio Medical University, Akron, OH, USA
| | - Norman E Fenn
- PennState Health Hershey Children's Hospital, Hershey, PA, USA
| | - Nicole E Omecene
- Department of Pharmacotherapy and Outcomes Science, Virginia Commonwealth University School of Pharmacy, Richmond, VA, USA
| | - Tara Smith
- HCA Florida West Healthcare, Pensacola, FL, USA
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7
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Højfeldt SG, Grell K, Hvitfeldt L, Wehner PS, Bjerre J, Albertsen BK. Correlation between asparaginase enzyme activity levels and coagulation parameters during childhood acute lymphoblastic leukemia treatment. Pediatr Blood Cancer 2023; 70:e30085. [PMID: 36377699 DOI: 10.1002/pbc.30085] [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] [Received: 07/05/2021] [Revised: 08/30/2022] [Accepted: 10/05/2022] [Indexed: 11/16/2022]
Abstract
Thromboembolism is a serious toxicity in the treatment of acute lymphoblastic leukemia (ALL), but little is known about the correlation between asparaginase enzyme activity (ASA) levels and coagulation parameters. We included 65 non-high risk ALL patients, aged 1-17 years. Coagulation parameters and corresponding ASA levels were measured during asparaginase treatment. We found ASA to be negatively correlated with antithrombin and fibrinogen up to ASA levels of 250 IU/L, after which these parameters reached a plateau and did not decrease further with further increase of ASA. Patients with silent inactivation of asparaginase had normal coagulation parameters.
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Affiliation(s)
- Sofie Gottschalk Højfeldt
- Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, and Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Kathrine Grell
- Section of Biostatistics, Department of Public Health, University of Copenhagen, Copenhagen, Denmark.,Department of Pediatrics and Adolescent Medicine, University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Lone Hvitfeldt
- Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, and Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Peder Skov Wehner
- Department of Pediatric Hematology and Oncology, H. C. Andersen Children's Hospital, Odense University Hospital, Odense, Denmark
| | - Jesper Bjerre
- Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, and Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Birgitte Klug Albertsen
- Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, and Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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8
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Jones SR, Patel RB, Rahim MQ, Althouse SK, Batra S. Venous Thromboembolic Events in Adolescent and Young Adult Patients with Acute Lymphoblastic Leukemia. J Adolesc Young Adult Oncol 2022; 11:600-604. [PMID: 35108120 DOI: 10.1089/jayao.2021.0136] [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: 12/16/2022] Open
Abstract
Acute venous thromboembolisms (VTEs) are serious complications that occur during acute lymphoblastic leukemia (ALL) chemotherapy. The data elucidating risk factors for developing VTEs are limited in adolescent and young adult patients being treated per pediatric ALL protocols. In a cohort of 66 patients, 14 (21%) experienced VTEs. The majority of VTEs occurred during induction chemotherapy after the first dose of asparaginase, and in the upper extremities. Five-year relapse-free and overall survival were not impacted by VTEs. Contrary to VTEs in adults, hypoalbuminemia and increased body mass index were not associated with an elevated risk of VTE.
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Affiliation(s)
- Sandra R Jones
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Roshni B Patel
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Mahvish Q Rahim
- Department of Pediatrics, Riley Hospital for Children, Indianapolis, Indiana, USA
| | - Sandra K Althouse
- Department of Biostatistics and Health Data Science, Indiana University, Indianapolis, Indiana, SA
| | - Sandeep Batra
- Department of Pediatrics, Riley Hospital for Children, Indianapolis, Indiana, USA.,Melvin and Bren Simon Cancer Center, Indianapolis, Indiana, USA
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9
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Ågerstam H, Lilljebjörn H, Rissler M, Sandén1 C, Fioretos T. IL1RAP is expressed in several subtypes of pediatric acute lymphoblastic leukemia and can be used as a target to eliminate ETV6::RUNX1-positive leukemia cells in preclinical models. Haematologica 2022; 108:599-604. [PMID: 36226493 PMCID: PMC9890010 DOI: 10.3324/haematol.2022.281059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Indexed: 02/03/2023] Open
Affiliation(s)
- Helena Ågerstam
- Division of Clinical genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden; Department of Clinical Genetics and Pathology, Office for Medical Services, Region Skåne, Lund.
| | - Henrik Lilljebjörn
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund
| | - Marianne Rissler
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund
| | - Carl Sandén1
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund
| | - Thoas Fioretos
- Division of Clinical genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden; Department of Clinical Genetics and Pathology, Office for Medical Services, Region Skåne, Lund.
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10
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Andersson NG, Rathe M, Mølle I, Jarvis KB, Hoffmann M, Huurre A, Joelsson J, Albertsen BK, Lohi O, Långström S, Overgaard U, Saulyte Trakymiene S, Vepsäläinen K, Vogt H, Ranta S. A survey on thromboprophylaxis and coagulation assessment in children and young adults with acute lymphoblastic leukaemia (ALL) in the Nordic and Baltic countries: Different practices of assessment and management. Br J Haematol 2022; 199:117-121. [PMID: 35922061 PMCID: PMC9804349 DOI: 10.1111/bjh.18397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 01/19/2023]
Abstract
Patients undergoing treatment for acute lymphoblastic leukaemia (ALL) are at risk of coagulopathy, especially thromboembolism. We conducted a survey on practices in the assessment and management of coagulopathy during the new ALLTogether protocol in 29 (17 paediatric, 12 adult) Nordic and Baltic cancer centres. While 92% of adult centres used thromboprophylaxis with low-molecular-weight heparin, no paediatric centre did. Almost all providers performed baseline coagulation studies, but only 59% continued the assessment. Fibrinogen replacement was conducted in 59%, and antithrombin replacement in 28% of the centres. The survey highlights the need for guidelines in the management of coagulopathy during ALL therapy.
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Affiliation(s)
- Nadine G. Andersson
- Department of Clinical Sciences and PaediatricsLund UniversityLundSweden,Department for Paediatric Haematology and OncologySkåne University HospitalLundSweden
| | - Mathias Rathe
- Hans Christian Andersen Children's Hospital, Odense University HospitalOdenseDenmark
| | - Ingolf Mølle
- Department of HematologyUniversity Hospital of AarhusAarhusDenmark
| | - Kirsten Brunswig Jarvis
- Department of Paediatric Haematology and OncologyOslo University HospitalRikshospitaletNorway
| | - Marianne Hoffmann
- Department of Pediatric Hematology/OncologyUniversity Hospital CopenhagenCopenhagenDenmark
| | - Anu Huurre
- Department of Pediatric and Adolescent MedicineTurku University Hospital, FICAN‐West, and Turku UniversityTurkuFinland
| | - Joel Joelsson
- Department of HaematologyKarolinska University HospitalStockholmSweden
| | - Birgitte Klug Albertsen
- Paediatrics and Adolescent Medicine, Aarhus University Hospital and Department of Clinical MedicineAarhus UniversityAarhusDenmark
| | - Olli Lohi
- Tampere Center for Child, Adolescent, and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University and Tays Cancer CenterTampere University HospitalTampereFinland
| | - Satu Långström
- New Children's Hospital and Helsinki University Central Hospital, University of Helsinki, Division of Hematology‐Oncology and Stem Cell TransplantationHelsinkiFinland
| | - Ulrik Overgaard
- Hematology DepartmentUniversity Hospital CopenhagenCopenhagenDenmark
| | - Sonata Saulyte Trakymiene
- Clinic of Children's Diseases, Faculty of MedicineVilnius University, Vilnius University Hospital Santaros KlinikosVilniusLithuania
| | | | - Hartmut Vogt
- Division of Pediatric Hematology‐Oncology B153, Department of Biomedical and Clinical SciencesCrown Princess Victoria's Children's and Youth Hospital, Linköping UniversityLinköpingSweden
| | - Susanna Ranta
- Department of Women's and Children's HealthKarolinska Institutet and Astrid Lindgren Children's Hospital, Karolinska University HospitalStockholmSweden
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11
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Athale UH, Flamand Y, Blonquist T, Stevenson KE, Spira M, Asselin BL, Clavell LA, Cole PD, Kelly KM, Laverdiere C, Leclerc JM, Michon B, Schorin MA, Welch JJG, Harris MH, Neuberg DS, Sallan SE, Silverman LB. Predictors of thrombosis in children receiving therapy for acute lymphoblastic leukemia: Results from Dana-Farber Cancer Institute ALL Consortium trial 05-001. Pediatr Blood Cancer 2022; 69:e29581. [PMID: 35316569 DOI: 10.1002/pbc.29581] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/20/2021] [Accepted: 01/06/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND/OBJECTIVES Although thromboembolism (TE) is a serious complication in patients with acute lymphoblastic leukemia (ALL), thromboprophylaxis is not commonly used due to the inherent bleeding risk in this population. Identifying prothrombotic risk factors will help target thromboprophylaxis to those at highest thrombotic risk. We aimed to define predictors and the impact of TE on ALL outcome in children (1-18 years) treated on the Dana-Farber Cancer Institute ALL 05-001 trial. METHODS Clinical and laboratory data including TE events were prospectively collected. PCR-based allelic discrimination assay identified single-nucleotide polymorphisms (SNP) for prothrombin G20210A (rs1799963) and Factor V G1691A (rs6025). Univariate and multivariable competing risk regression models evaluated the effect of diagnostic clinical (age, sex, body mass index, ALL-immunophenotype, risk group) and laboratory variables (presenting leukocyte count, blood group, SNPs) on the cumulative incidence of TE. Cox regression modeling explored the impact of TE on survival. RESULTS Of 794 patients [median age 4.97 (range, 1.04-17.96) years; males 441], 100 developed TE; 25-month cumulative incidence 13.0% (95% CI, 10.7%-15.5%). Univariate analyses identified older age (≥10 years), presenting leucocyte count, T-ALL, high-risk ALL, and non-O blood group as risk factors. Age and non-O blood group were independent predictors of TE on multivariable regression; the blood group impact being most evident in patients 1-5 years of age (P = 0.011). TE did not impact survival. Induction TE was independently associated with induction failure (OR 6.45; 95% CI, 1.64-25.47; P = 0.008). CONCLUSION We recommend further evaluation of these risk factors and consideration of thromboprophylaxis for patients ≥10 years (especially those ≥15 years) when receiving asparaginase.
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Affiliation(s)
- Uma H Athale
- Division of Hematology/Oncology, McMaster Children's Hospital, Hamilton Health Sciences, Hamilton, Ontario, Canada
| | - Yael Flamand
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Traci Blonquist
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Kristen E Stevenson
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Menachem Spira
- Department of Pediatrics, New York-Presbyterian Hospital, New York, New York
| | - Barbara L Asselin
- Department of Pediatrics, University of Rochester Medical Center and School of Medicine, Rochester, New York
| | | | - Peter D Cole
- Division of Pediatric Hematology/Oncology, Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, New Jersey
| | - Kara M Kelly
- Roswell Park Comprehensive Cancer Center, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York
| | - Caroline Laverdiere
- Hematology-Oncology Division, Charles Bruneau Cancer Center, Sainte-Justine University Hospital, University of Montreal, Montreal, Quebec, Canada
| | - Jean-Marie Leclerc
- Hematology-Oncology Division, Charles Bruneau Cancer Center, Sainte-Justine University Hospital, University of Montreal, Montreal, Quebec, Canada
| | - Bruno Michon
- Centre Hospitalier Universitaire de Quebec, Sainte-Foy, Quebec, Canada
| | | | - Jennifer J G Welch
- Pediatric Hematology Oncology, Hasbro Children's Hospital/Brown University, Providence, Rhode Island
| | - Marian H Harris
- Department of Pathology, Boston Children's Hospital, Boston, Massachusetts
| | - Donna S Neuberg
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Stephen E Sallan
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Division of Pediatric Hematology-Oncology, Boston Children's Hospital, Boston, Massachusetts
| | - Lewis B Silverman
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Division of Pediatric Hematology-Oncology, Boston Children's Hospital, Boston, Massachusetts
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12
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Carmona R, Kizilocak H, Marquez-Casas E, Vasquez S, Ji L, Ko RH, Young G, Jaffray J. Markers of hypercoagulability in children with newly diagnosed acute lymphoblastic leukemia. Pediatr Blood Cancer 2022; 69:e29522. [PMID: 34963026 DOI: 10.1002/pbc.29522] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 10/13/2021] [Accepted: 11/23/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Venous thromboembolism (VTE) is a known complication for children with acute lymphoblastic leukemia (ALL). The aim of this study was to identify laboratory biomarkers that predict which children with ALL are at risk for VTE during induction chemotherapy. MATERIALS AND METHODS Newly diagnosed ALL patients admitted to Children's Hospital Los Angeles with a central venous catheter (CVC) were eligible to participate. Participants' blood samples (complete blood count [CBC], quantitative D-dimer, prothrombin fragment 1.2 [PTF 1.2], and thrombin-antithrombin complexes [TAT]) were collected at day 0 (baseline/prior to induction), day 7 (±2 days), day 14 (±2 days), day 21 (±2 days), and day 28 (±2 days) of induction chemotherapy or until participants presented with a symptomatic VTE. RESULTS Seventy-five participants aged 1-21 years were enrolled and included in the final analysis. Twenty-six (35%) of the 75 participants were diagnosed with a CVC-associated VTE (22 asymptomatic and four symptomatic). There was a statistically significant difference between VTE and non-VTE participants for D-dimer (odds ratio [OR] 1.61, 95% confidence interval [CI]: 1.59-1.64), TAT (OR 1.34, 95% CI: 1.32-1.38), and PTF 1.2 (OR 1.31, 95% CI: 1.25-1.37) at all time points. Participants >10 years had a significantly higher risk of developing a VTE compared to participants <4 years (p = .007). CONCLUSION Older children with ALL as well as those with an elevated TAT, PTF 1.2, or D-dimer showed an increased risk of VTE, which may hold potential for predicting VTE in future studies.
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Affiliation(s)
- Roxana Carmona
- Hemostasis and Thrombosis Center, Children's Hospital Los Angeles, Los Angeles, California, USA
| | - Hande Kizilocak
- Hemostasis and Thrombosis Center, Children's Hospital Los Angeles, Los Angeles, California, USA
| | - Elizabeth Marquez-Casas
- Hemostasis and Thrombosis Center, Children's Hospital Los Angeles, Los Angeles, California, USA
| | - Siobhan Vasquez
- Hemostasis and Thrombosis Center, Children's Hospital Los Angeles, Los Angeles, California, USA
| | - Lingyun Ji
- Division of Biostatistics, Department of Preventive Medicine, University of Southern California, Los Angeles, California, USA
| | - Richard H Ko
- Hemostasis and Thrombosis Center, Children's Hospital Los Angeles, Los Angeles, California, USA.,Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Guy Young
- Hemostasis and Thrombosis Center, Children's Hospital Los Angeles, Los Angeles, California, USA.,Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Julie Jaffray
- Hemostasis and Thrombosis Center, Children's Hospital Los Angeles, Los Angeles, California, USA.,Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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13
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Swan D, Thachil J. Management of haemostatic complications of chimaeric antigen receptor T-cell therapy. Br J Haematol 2022; 197:250-259. [PMID: 35146749 DOI: 10.1111/bjh.18045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Dawn Swan
- Department of Haematology, St James' Hospital, Dublin, Republic of Ireland
| | - Jecko Thachil
- Department of Haematology, Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
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14
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Ranta S, Broman LM, Abrahamsson J, Berner J, Fläring U, Hed Myrberg I, Kalzén H, Karlsson L, Mellgren K, Nilsson A, Norén-Nyström U, Palle J, von Schewelov K, Svahn JE, Törnudd L, Heyman M, Harila-Saari A. ICU Admission in Children With Acute Lymphoblastic Leukemia in Sweden: Prevalence, Outcome, and Risk Factors. Pediatr Crit Care Med 2021; 22:1050-1060. [PMID: 34074998 DOI: 10.1097/pcc.0000000000002787] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Despite progress in the treatment of childhood acute lymphoblastic leukemia, severe complications are common, and the need of supportive care is high. We explored the cumulative prevalence, clinical risk factors, and outcomes of children with acute lymphoblastic leukemia, on first-line leukemia treatment in the ICUs in Sweden. DESIGN A nationwide prospective register and retrospective chart review study. SETTING Children with acute lymphoblastic leukemia were identified, and demographic and clinical data were obtained from the Swedish Childhood Cancer Registry. Data on intensive care were collected from the Swedish Intensive Care Registry. Data on patients with registered ICU admission in the Swedish Childhood Cancer Registry were supplemented through questionnaires to the pediatric oncology centers. PATIENTS All 637 children 0-17.9 years old with acute lymphoblastic leukemia diagnosed between June 2008 and December 2016 in Sweden were included. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Twenty-eight percent of the children (178/637) were admitted to an ICU at least once. The Swedish Intensive Care Registry data were available for 96% of admissions (241/252). An ICU admission was associated with poor overall survival (hazard ratio, 3.25; 95% CI, 1.97-5.36; p ≤ 0.0001). ICU admissions occurred often during early treatment; 48% (85/178) were admitted to the ICU before the end of the first month of acute lymphoblastic leukemia treatment (induction therapy). Children with T-cell acute lymphoblastic leukemia or CNS leukemia had a higher risk of being admitted to the ICU in multivariable analyses, both for early admissions before the end of induction therapy and for all admissions during the study period. CONCLUSIONS The need for intensive care in children with acute lymphoblastic leukemia, especially for children with T cell acute lymphoblastic leukemia and CNS leukemia, is high with most admissions occurring during early treatment.
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Affiliation(s)
- Susanna Ranta
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Pediatric Oncology, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Lars Mikael Broman
- ECMO Centre Karolinska, Department of Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Jonas Abrahamsson
- Institution of Clinical Sciences, Department of Pediatrics, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jonas Berner
- ECMO Centre Karolinska, Department of Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Urban Fläring
- ECMO Centre Karolinska, Department of Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Ida Hed Myrberg
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Håkan Kalzén
- Department of Anesthesia, Södertälje Hospital, Södertälje, Sweden
- Department of Anaesthesia and Intensive Care, Karolinska Institutet at Danderyd Hospital (KIDS), Danderyd, Sweden
| | - Lene Karlsson
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Pediatric Oncology, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
- ECMO Centre Karolinska, Department of Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
- Institution of Clinical Sciences, Department of Pediatrics, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Anesthesia, Södertälje Hospital, Södertälje, Sweden
- Department of Anaesthesia and Intensive Care, Karolinska Institutet at Danderyd Hospital (KIDS), Danderyd, Sweden
- Department of Clinical Sciences, Pediatrics, Umeå University, Umeå, Sweden
- Department of Women's and Children's Health, Uppsala University and Pediatric Oncology, Uppsala University Hospital, Uppsala, Sweden
- Department of Pediatric Oncology, Skåne University Hospital, Lund University, Lund, Sweden
- Department of Pediatrics, Linköping University Hospital, Linköping, Sweden
| | - Karin Mellgren
- Institution of Clinical Sciences, Department of Pediatrics, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Anna Nilsson
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Pediatric Oncology, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | | | - Josefine Palle
- Department of Women's and Children's Health, Uppsala University and Pediatric Oncology, Uppsala University Hospital, Uppsala, Sweden
| | - Katarina von Schewelov
- ECMO Centre Karolinska, Department of Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
| | - Johan E Svahn
- Department of Pediatric Oncology, Skåne University Hospital, Lund University, Lund, Sweden
| | - Lisa Törnudd
- Department of Pediatrics, Linköping University Hospital, Linköping, Sweden
| | - Mats Heyman
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Arja Harila-Saari
- Department of Women's and Children's Health, Uppsala University and Pediatric Oncology, Uppsala University Hospital, Uppsala, Sweden
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15
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Egnell C, Heyman M, Jónsson ÓG, Raja RA, Niinimäki R, Albertsen BK, Schmiegelow K, Stabell N, Vaitkeviciene G, Lepik K, Harila-Saari A, Ranta S. Obesity as a predictor of treatment-related toxicity in children with acute lymphoblastic leukaemia. Br J Haematol 2021; 196:1239-1247. [PMID: 34726257 DOI: 10.1111/bjh.17936] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 10/20/2021] [Indexed: 02/04/2023]
Abstract
Obesity is associated with poor outcomes in childhood acute lymphoblastic leukaemia (ALL). We explored whether severe treatment-related toxicity and treatment delays could explain this observation. This study included 1 443 children aged 2·0-17·9 years with ALL treated with the Nordic Society of Pediatric Haematology and Oncology (NOPHO) ALL2008 non-high-risk protocol. Prospective treatment-related toxicities registered every three-month interval were used. Patients were classified according to sex- and age-adjusted international childhood cut-off values, corresponding to adult body mass index: underweight, <17 kg/m2 ; healthy weight, 17 to <25 kg/m2 ; overweight, 25 to <30 kg/m2 ; and obese, ≥30 kg/m2 . Obese children had a higher incidence rate ratio (IRR) for severe toxic events {IRR: 1·55 [95% confidence interval (CI) 1·07-2·50]}, liver and kidney failures, bleeding, abdominal complication, suspected unexpected severe adverse reactions and hyperlipidaemia compared with healthy-weight children. Obese children aged ≥10 years had increased IRRs for asparaginase-related toxicities compared with healthy-weight older children: thromboses [IRR 2·87 (95% CI 1·00-8·21)] and anaphylactic reactions [IRR 7·95 (95% CI 2·15-29·37)] as well as higher risk for truncation of asparaginase [IRR 3·54 (95% CI 1·67-7·50)]. The high prevalence of toxicity and a higher risk of truncation of asparaginase may play a role in the poor prognosis of obese children aged ≥10 years with ALL.
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Affiliation(s)
- Christina Egnell
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.,Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Mats Heyman
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | | | - Raheel A Raja
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark.,Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Denmark
| | - Riitta Niinimäki
- PEDEGO Research Unit, Medical Research Center Oulu and Department of Children and Adolescents, Oulu University Hospital and University of Oulu, Oulu, Finland
| | - Birgitte Klug Albertsen
- Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark.,Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Denmark
| | - Niklas Stabell
- Department of Paediatrics, University Hospital of North Norway, Tromsø, Norway
| | - Goda Vaitkeviciene
- Children's Hospital, Affiliate of Vilnius University Hospital Santaros Klinikos and Vilnius University, Vilnius, Lithuania
| | - Kristi Lepik
- Department of Haematology and Oncology, Children's hospital, Tallinn, Estonia
| | - Arja Harila-Saari
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Susanna Ranta
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.,Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
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16
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Asparaginase Enzyme Activity Levels and Toxicity in Childhood Acute Lymphoblastic Leukemia: a NOPHO ALL2008 study. Blood Adv 2021; 6:138-147. [PMID: 34625787 PMCID: PMC8753199 DOI: 10.1182/bloodadvances.2021005631] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/01/2021] [Indexed: 01/19/2023] Open
Abstract
Overall asparaginase-associated toxicity and relapse were not significantly associated with increased asparaginase enzyme activity levels. The risk of pancreatitis and osteonecrosis were significantly associated with increasing asparaginase enzyme activity.
Asparaginase treatment is a mainstay in contemporary treatment of acute lymphoblastic leukemia (ALL), but substantial asparaginase-related toxicity may lead to jeopardized protocol compliance and compromises survival. We investigated the association between risk of asparaginase-associated toxicities (AspTox) and asparaginase enzyme activity (AEA) levels in 1155 children aged 1.0 to 17.9 years, diagnosed with ALL between July 2008 and March 2016, and treated according to the Nordic Society of Pediatric Hematology and Oncology (NOPHO) ALL2008 protocol. Patients with ≥2 blood samples for AEA measurement drawn 14 ± 2 days after asparaginase administration were included (6944 trough values). AEA was measurable (or >0 IU/L) in 955 patients, whereas 200 patients (17.3%) had asparaginase inactivation and few AspTox recorded. A time-dependent multiple Cox model of time to any first asparaginase-associated toxicity adjusted for sex and age was used. For patients with measurable AEA, we found a hazard ratio (HR) of 1.17 per 100 IU/L increase in median AEA (95% confidence interval [CI], 0.98-1.41; P = .09). For pancreatitis, thromboembolism, and osteonecrosis, the HRs were 1.40 (95% CI, 1.12-1.75; P = .002), 0.99 (95% CI, 0.70-1.40; P = .96), and 1.36 (95% CI, 1.04-1.77; P = .02) per 100 IU/L increase in median AEA, respectively. No significant decrease in the risk of leukemic relapse was found: HR 0.88 per 100 IU/L increase in AEA (95% CI, 0.66-1.16; P = .35). In conclusion, these results emphasize that overall AspTox and relapse are not associated with AEA levels, yet the risk of pancreatitis and osteonecrosis increases with increasing AEA levels.
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17
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Pelland‐Marcotte M, Kulkarni K, Athale UH, Pole JD, Brandão LR, Sung L. Thrombosis is associated with worse survival in children with acute lymphoblastic leukemia: A report from CYP-C. Am J Hematol 2021; 96:796-804. [PMID: 33848369 DOI: 10.1002/ajh.26193] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 01/19/2023]
Abstract
There are conflicting data about whether the development of cancer-associated thrombo-embolism (TE) negatively impacts survival in children. The objective was to determine whether TE during treatment was associated with overall survival (OS) and event-free survival (EFS) in children with acute lymphoblastic leukemia (ALL). We performed a population-based retrospective cohort study using the Cancer in Young People-Canada registry. Children <15 years of age were diagnosed with de novo ALL (2000-2016). The primary exposure variable was radiologically-confirmed thrombo-embolism requiring medical intervention. Multivariable Cox regression models were used to determine the impact of thrombo-embolism on survival, where TE was time-dependent. We included 2006 children (median age: 4 years, 88.5% precursor B-cell ALL). Thrombo-embolism occurred in 113 patients (5.6%), at a median time of 107 days (interquartile range: 35-184 days) after ALL diagnosis. Among standard/low-risk patients, 41/1165 (3.5%) developed TE while among high/very high-risk patients, 72/841 (8.6%) developed TE. Patients with TE had a significantly worse OS (adjusted HR [aHR] of death: 2.61, 95% CI: 1.62-4.22, p < 0.001) and EFS (aHR of an event [death, relapse, second malignancy]: 2.03, 95% CI: 1.35-3.05, p = 0.001), compared with patients without TE. No statistically significant difference was seen in standard/low risk ALL for OS and EFS, but TE was associated with a significantly lower OS and EFS in children with high/very high-risk ALL (aHR of death: 2.90, 95% CI: 1.79-4.72, p < 0.001; aHR of an event: 2.02, 95% CI: 1.30-3.12, p = 0.002). Thus, TE led to a statistically significant reduction in OS and EFS in children with high risk/very high-risk leukemia.
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Affiliation(s)
| | - Ketan Kulkarni
- Division of Hematology‐Oncology, Department of Pediatrics IWK Health Centre Halifax Nova Scotia Canada
| | - Uma H. Athale
- Division of Haematology/Oncology, McMaster Children's Hospital, and Department of Pediatrics McMaster University Hamilton Ontario Canada
| | - Jason D. Pole
- Centre for Health Services Research University of Queensland Herston Queensland Australia
| | - Leonardo R. Brandão
- Division of Haematology/Oncology, Department of Paediatrics SickKids Hospital Toronto Ontario Canada
- Program in Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning Toronto Ontario Canada
- Dalla Lana School of Public Health, University of Toronto Toronto Ontario Canada
| | - Lillian Sung
- Division of Haematology/Oncology, Department of Paediatrics SickKids Hospital Toronto Ontario Canada
- Program in Child Health Evaluative Sciences, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning Toronto Ontario Canada
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18
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Horowitz NA, Brenner B. Thrombosis in hematological malignancies: mechanisms and implications. Thromb Res 2021; 191 Suppl 1:S58-S62. [PMID: 32736780 DOI: 10.1016/s0049-3848(20)30398-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 01/12/2020] [Accepted: 01/13/2020] [Indexed: 12/21/2022]
Abstract
A B S T R A C T Thrombotic events are a major cause of morbidity and mortality in cancer. While the association of venous thromboembolic events with cancer is well documented, in recent years arterial events (i.e. acute myocardial infarction and ischemic strokes) have also emerged as relatively common complications among cancer patients. In hematological malignancies incorporating a heterogeneous group of diseases, the prediction of thrombosis occurrence and/or recurrence is challenging, due to unique disease characteristics. Furthermore, the treatment of thrombosis in these patients is often complicated because of disease- or therapy-related thrombocytopenia. In addition, patients with hematological cancers are poorly represented in randomized control clinical trials; hence, evidence-based guidelines are limited. This review will discuss the incidence of venous and arterial thrombotic events in common myeloid and lymphoproliferative diseases. Several new mechanisms contributing to cancer- associated thrombosis will be elaborated. The complicated issue of risk assessment and management of venous thrombosis in patients with hematological malignancies will be delineated.
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Affiliation(s)
- Netanel A Horowitz
- Department of Hematology and Bone Marrow Transplantation, Rambam Health Care Campus, Haifa, Israel; Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel.
| | - Benjamin Brenner
- Department of Hematology and Bone Marrow Transplantation, Rambam Health Care Campus, Haifa, Israel; Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel
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19
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Riley DO, Schlefman JM, Vitzthum Von Eckstaedt V HC, Morris AL, Keng MK, El Chaer F. Pegaspargase in Practice: Minimizing Toxicity, Maximizing Benefit. Curr Hematol Malig Rep 2021; 16:314-324. [PMID: 33978914 DOI: 10.1007/s11899-021-00638-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2021] [Indexed: 01/19/2023]
Abstract
PURPOSE OF REVIEW The incorporation of pegaspargase in chemotherapy regimens has significantly improved the prognosis of ALL in adults. However, pegaspargase use poses many challenges due to its unique toxicity profile. Here, we review pegaspargase's most clinically significant toxicities, and provide guidance for their prevention and management in order to avoid unnecessary drug discontinuation and achieve maximum clinical benefit. RECENT FINDINGS Clinically significant toxicities of pegaspargase include thrombosis, hypersensitivity and inactivation, hepatotoxicity, pancreatitis, and hypertriglyceridemia. The majority of these toxicities are temporary, nonfatal, and can be managed supportively without permanent pegaspargase discontinuation. Special attention should be paid to inactivation, which can lead to treatment failure, as well as pancreatitis, which necessitates complete cessation of asparaginase therapy. The question of how to best proceed in patients who cannot tolerate pegaspargase remains unanswered, and is an important area of future investigation. Pegaspargase is an essential component of the pediatric-inspired regimens that have improved survival in adult ALL. Although pegaspargase's toxicity profile is unique, it is also highly manageable and should not be a barrier to achieving maximum clinical benefit using this drug.
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Affiliation(s)
- David O Riley
- Department of Medicine, Division of Hematology and Oncology, University of Virginia School of Medicine, 1215 Lee Street, Charlottesville, VA, 22903, USA
| | - Jenna M Schlefman
- Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA, USA
| | | | - Amy L Morris
- Department of Pharmacy Services, UVA Health, Charlottesville, VA, USA
| | - Michael K Keng
- Department of Medicine, Division of Hematology and Oncology, University of Virginia School of Medicine, 1215 Lee Street, Charlottesville, VA, 22903, USA
| | - Firas El Chaer
- Department of Medicine, Division of Hematology and Oncology, University of Virginia School of Medicine, 1215 Lee Street, Charlottesville, VA, 22903, USA.
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20
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Liang C, Li Y, Wang LN, Zhang XL, Luo JS, Peng CJ, Tang WY, Huang LB, Tang YL, Luo XQ. Up-regulated miR-155 is associated with poor prognosis in childhood acute lymphoblastic leukemia and promotes cell proliferation targeting ZNF238. ACTA ACUST UNITED AC 2021; 26:16-25. [PMID: 33357126 DOI: 10.1080/16078454.2020.1860187] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVES Acute lymphoblastic leukemia (ALL) is one of the most common malignancies in children. Our aim was to identify a novel miRNA that can predict prognosis of childhood ALL patients and explore its potential mechanism. METHODS The miRNA expression profiles of childhood ALL were analyzed using GEO database and HiSeq instruments. The expression of miR-155 was examined by RT-PCR in 42 ALL patients. To investigate the role of miR-155 in ALL, four ALL cell lines (CEM-C1, Jurkat, MOLT-3 and MOLT-4) were transfected with miR-155 mimics, miR-155 inhibitors or corresponding controls. Dual-luciferase reporter system was applied to confirm the miR-155 target ZNF238. Moreover, proliferation and apoptosis were evaluated by MTT and flow cytometry. RESULTS Dataset GSE56489 and GSE23024 demonstrated that miR-155 was up-regulated and ZNF238 was down-regulated at diagnosis status of ALL. High miR-155 expression was associated with poor outcome. Overexpressed miR-155 promoted ALL cell proliferation and inhibited apoptosis. Dual-luciferase reporter result showed that miR-155 directly regulated ZNF238. Silencing ZNF238 promoted cell proliferation in ALL cells. DISCUSSION Our research indicating that miR-155 might possess potential value as a biomarker for predicting the prognosis of individuals. However, the role of ZNF238 in childhood ALL remain unknown. In the present study, we found the possible role of ZNF238 as a new tumor suppressor in ALL, which might be necessary for the antiproliferative functions of normal cells to counteract ALL formation. CONCLUSION Our results propose that miR-155 is in association with poor prognosis of childhood ALL. Furthermore, miR-155 could promote cell proliferation targeting ZNF238.
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Affiliation(s)
- Cong Liang
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Yu Li
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Li-Na Wang
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Xiao-Li Zhang
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Jie-Si Luo
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Chun-Jin Peng
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Wen-Yan Tang
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Li-Bin Huang
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Yan-Lai Tang
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Xue-Qun Luo
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
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21
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Jarvis KB, Andersson NG, Giertz M, Järvelä L, Lindinger O, Långström S, Niinimäki R, Palmu S, Trakymiene SS, Tuckuviene R, Vepsäläinen K, Ranta S, Frisk T. Asymptomatic Right Atrial Thrombosis After Acute Lymphoblastic Leukemia Treatment. J Pediatr Hematol Oncol 2021; 43:e564-e566. [PMID: 32555028 DOI: 10.1097/mph.0000000000001848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 04/28/2020] [Indexed: 11/25/2022]
Abstract
Right atrial thrombosis is a rare, but potentially serious complication of acute lymphoblastic leukemia treatment. We conducted a retrospective multicenter study to assess the incidence, treatment, and outcome of asymptomatic right atrial thrombosis detected at routine echocardiography of children after acute lymphoblastic leukemia treatment in the Nordic and Baltic countries. Eleven (2.7%, 95% confidence interval, 1.4-4.9) of 406 patients had asymptomatic right atrial thrombosis, ranging from 10 to 25 mm at detection. Three patients were treated with anticoagulation. None of the thromboses affected cardiac function, and they showed neither sign of progress nor spontaneous or treatment-related regress at follow-up.
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Affiliation(s)
- Kirsten B Jarvis
- Departments of Pediatric Hematology and Oncology
- Pediatric Research, Oslo University Hospital
- The Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Nadine G Andersson
- Department for Pediatric Hematology and Oncology, Skåne University Hospital, Lund
| | - Mia Giertz
- Department of Pediatric Hematology and Oncology, Uppsala University Hospital
- Department of Women's and Children's Health, University of Uppsala, Uppsala
| | - Liisa Järvelä
- Department of Pediatrics and Adolescent Medicine, Turku University Hospital
- Department of Clinical Sciences, University of Turku, Turku
| | | | - Satu Långström
- Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, Children's Hospital, Helsinki University Hospital, Helsinki
| | - Riitta Niinimäki
- PEDEGO Research Unit, University of Oulu
- Department of Children and Adolescents, Oulu University Hospital, Oulu
| | - Sauli Palmu
- Faculty of Medicine and Health Technology, Tampere University
- Center for Child Health Research, Tampere University and Department of Pediatrics, Tampere University Hospital, Tampere
| | - Sonata S Trakymiene
- Center for Pediatric Oncology and Hematology, Children's Hospital, Vilnius University Hospital Santaros Klinikos
- Clinic of Children's Diseases, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Ruta Tuckuviene
- Department of Pediatrics, Aalborg University Hospital, Aalborg, Denmark
| | - Kaisa Vepsäläinen
- Department of Pediatrics, Kuopio University Hospital, Kuopio, Finland
| | - Susanna Ranta
- Astrid Lindgren Children's Hospital, Karolinska University Hospital
- Department of Women's and Children's Health, Karolinska Insitutet, Stockholm, Sweden
| | - Tony Frisk
- Astrid Lindgren Children's Hospital, Karolinska University Hospital
- Department of Women's and Children's Health, Karolinska Insitutet, Stockholm, Sweden
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22
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Biswas M, Ryan PM, Nakrani R, Bhatt M, Chan AKC, Mondal T. Central venous catheters are an important factor in paediatric thrombosis. Acta Paediatr 2021; 110:1001-1008. [PMID: 32815198 DOI: 10.1111/apa.15543] [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] [Received: 04/30/2020] [Revised: 08/03/2020] [Accepted: 08/17/2020] [Indexed: 11/28/2022]
Abstract
AIM To establish the incidence and characteristics of paediatric thrombosis (PT) in a Canadian tertiary care centre during the era of low molecular weight heparin (LMWH). METHODS A retrospective observational case study of all patients <18 years of age evaluated for arterial and venous thrombosis from May 2008 to July 2018 at McMaster Children's Hospital was conducted through the electronic medical record. RESULTS The incidence of PT was 52.2 per 10 000 hospital admissions (n = 477/91 462). Provoked thrombosis was more prevalent (88.9%, n = 424/477) than unprovoked (2.9%, n = 14/477) or idiopathic thrombosis (4%, n = 19/477). Half of PT were in children <2 years (51.2%, n = 244/477). Central vascular catheterisation was a contributory factor in more than half of thrombotic events (56.2%, n = 268/477), while trauma (1.1%, n = 5/477), oral contraceptives (4%, n = 19/477), infection (4%, n = 19/477), surgery (6.9%, n = 33/477) and malignancy (8.4%, n = 40/477) were also risk factors. Arterial ischaemic stroke was diagnosed in 11.1% of cases (n = 53/477), while pulmonary embolism was identified in 7.1% (n = 34/477) and 1.7% of cases were fatal (n = 8/477). LMWH was the first-line therapeutic of choice (47.8%, n = 228/477), with 28.1% (n = 134/477) requiring no intervention. CONCLUSION These data reiterate the elevated thrombosis risk to which infants and children with central vascular access are exposed.
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Affiliation(s)
- Mouri Biswas
- Department of Pediatrics McMaster Children’s Hospital Hamilton ON Canada
| | - Paul M. Ryan
- School of Medicine and Health Sciences University College Cork Cork Ireland
| | - Rima Nakrani
- Department of Pediatrics McMaster Children’s Hospital Hamilton ON Canada
| | - Mihir Bhatt
- Department of Pediatrics McMaster Children’s Hospital Hamilton ON Canada
| | - Anthony K. C. Chan
- Department of Pediatrics McMaster Children’s Hospital Hamilton ON Canada
| | - Tapas Mondal
- Department of Pediatrics McMaster Children’s Hospital Hamilton ON Canada
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23
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A pilot study of procoagulant platelet extracellular vesicles and P-selectin increase during induction treatment in acute lymphoblastic leukaemia paediatric patients: two new biomarkers of thrombogenic risk? J Thromb Thrombolysis 2020; 51:711-719. [PMID: 33247807 DOI: 10.1007/s11239-020-02346-7] [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] [Accepted: 11/16/2020] [Indexed: 01/19/2023]
Abstract
In paediatric acute lymphoblastic leukaemia (ALL), focus has shifted towards preventing treatment-related complications, including venous thromboembolism, the cause of significant mortality and morbidity. To better understand thrombogenic mechanisms during induction treatment, we studied the number, origin and procoagulant activity of extracellular vesicles (EVs) and P-selectin level throughout the induction course in 24 paediatric patients. EVs were mainly of platelet origin. We observed a significant increase in EV number, in platelet EV number and P-selectin level throughout the induction course. There was a correlation between higher EV and platelet EV number, P-selectin level, higher platelet count and leucocyte count. We also observed a correlation between higher EV procoagulant activity and higher platelet count and leucocyte count and higher P-selectin level. Older age and T phenotype were associated with a higher EV procoagulant activity. Platelet EV generation may play a role in thrombogenic complications in ALL patients and could serve as a biomarker to identify patients with a high risk of thrombosis. As a marker of platelet activation, P-selectin may be another relevant marker with the advantage of being easier to analyse in clinical practice.
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24
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Burke PW, Hoelzer D, Park JH, Schmiegelow K, Douer D. Managing toxicities with asparaginase-based therapies in adult ALL: summary of an ESMO Open-Cancer Horizons roundtable discussion. ESMO Open 2020; 5:e000858. [PMID: 33037033 PMCID: PMC7549445 DOI: 10.1136/esmoopen-2020-000858] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 01/19/2023] Open
Abstract
With recent prospective clinical trials that used paediatric regimens with multiple doses of pegylated form of asparaginase (PEG asparaginase) in adults reporting significantly improved survival compared with historical data with regimens that used less asparaginase, PEG asparaginase is increasingly being used in the treatment of adult acute lymphoblastic leukaemia (ALL). However, administering asparaginase still comes with its challenges, especially in adult patients. Therefore, it is important to understand how to manage its toxicities properly. An expert group met in November 2019 in London to discuss recent data of paediatric as well as adult studies using paediatric regimens with regard to the best management of several key toxicities that can occur in adults treated with asparaginase including hepatotoxicity, pancreatitis, hypertriglyceridaemia, thrombosis and hypersensitivity. Several recommendations were made for each one of these toxicities, with the goal of safe administration of the drug and to educate clinicians when the drug can be continued despite side effects.
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Affiliation(s)
- Patrick W Burke
- Division of Hematology/Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA.
| | - Dieter Hoelzer
- Internal Medicine, Onkologikum Frankfurt, Frankfurt, Germany
| | - Jae H Park
- Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York City, New York, USA
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, Juliane Marie Center, Rigshospitalet University Hospital, and Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Dan Douer
- Jane Anne Nohle Division of Hematology, University of Southern California, Los Angeles, California, USA
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25
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Tuckuviene R, Bjerg CL, Jonsson OG, Langstrom S, Rank CU, Ranta S, Saks K, Trakymiene SS, Ruud E. Pulmonary embolism in acute lymphoblastic leukemia - An observational study of 1685 patients treated according to the NOPHO ALL2008 protocol. Res Pract Thromb Haemost 2020; 4:866-871. [PMID: 32685896 PMCID: PMC7354408 DOI: 10.1002/rth2.12356] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/08/2020] [Accepted: 04/16/2020] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Pulmonary embolism (PE) is a serious complication of acute lymphoblastic leukemia (ALL). We examined the cumulative incidence and clinical presentation of PE in a well-defined cohort of patients with ALL aged 1-45 years treated according to the Nordic Society of Pediatric Hematology and Oncology (NOPHO) ALL2008 protocol. METHODS As part of the mandatory toxicity reporting of NOPHO ALL2008, thromboembolism including PE was reported consecutively. The cumulative incidence of first-time PE was calculated using the Aalen-Johansen estimator during a 2.5-year period from ALL diagnosis. We used Fisher's exact test to examine categorical variables and Cox logistic regression to estimate hazard ratios (HRs) for PE. RESULTS PE was diagnosed in 32 of 1685 patients. The 2.5-year cumulative incidence of first-time PE increased with age: 0.43% (95% CI, 0.18-1.03) in children aged 1-9 years, 3.28% (95% CI, 1.72-6.22) in children aged 10-17 years, and 7.22% (95% CI, 4.61-11.21) in adults aged 18-45 years. The majority of PEs, 78% (25/32), occurred during asparaginase treatment. HRs adjusted for age and sex were associated with male sex (HR, 2.4; 95% CI, 1.0-5.6) and older age (10-17 years: HR 7.5; 95% CI, 2.5-22.2), 18-45 years: HR, 16.5; 95% CI, 6.1-44.5). In two-thirds of the patients (63%; 17/27), PE and its treatment had no impact on the administered doses of asparaginase. PE-associated 30-day mortality was 9.4% (95% CI, 1.9-25.0). CONCLUSIONS Awareness of PE is warranted during ALL treatment. Larger multicenter studies are needed to examine predictors of PE in ALL.
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Affiliation(s)
- Ruta Tuckuviene
- Department of PediatricsAalborg University HospitalAalborgDenmark
| | | | | | - Satu Langstrom
- Division of Hematology‐Oncology and Stem Cell TransplantationNew Children’s Hospital and Helsinki University Central HospitalUniversity of HelsinkiHelsinkiFinland
| | - Cecilie Utke Rank
- Pediatric Oncology Research Laboratory and Department of HematologyRigshospitaletUniversity of CopenhagenCopenhagenDenmark
| | - Susanna Ranta
- Department of Women’s and Children’s HealthKarolinska University Hospital, and Childhood Cancer Research UnitWomen’s and Children’s HealthKarolinska InstitutetStockholmSweden
| | - Kadri Saks
- Department of OncohematologyTallinn Children’s HospitalTallinnEstonia
| | | | - Ellen Ruud
- Department of Pediatric Hematology and OncologyUnit for Pediatric and Adolescent MedicineOslo University HospitalOsloNorway
- Institute for Clinical MedicineUniversity of OsloOsloNorway
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26
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Mateos MK, Tulstrup M, Quinn MCJ, Tuckuviene R, Marshall GM, Gupta R, Mayoh C, Wolthers BO, Barbaro PM, Ruud E, Sutton R, Huttunen P, Revesz T, Trakymiene SS, Barbaric D, Tedgård U, Giles JE, Alvaro F, Jonsson OG, Mechinaud F, Saks K, Catchpoole D, Kotecha RS, Dalla-Pozza L, Chenevix-Trench G, Trahair TN, MacGregor S, Schmiegelow K. Genome-Wide Association Meta-Analysis of Single-Nucleotide Polymorphisms and Symptomatic Venous Thromboembolism during Therapy for Acute Lymphoblastic Leukemia and Lymphoma in Caucasian Children. Cancers (Basel) 2020; 12:E1285. [PMID: 32438682 PMCID: PMC7280960 DOI: 10.3390/cancers12051285] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 05/11/2020] [Accepted: 05/14/2020] [Indexed: 12/22/2022] Open
Abstract
Symptomatic venous thromboembolism (VTE) occurs in five percent of children treated for acute lymphoblastic leukemia (ALL), but whether a genetic predisposition exists across different ALL treatment regimens has not been well studied. METHODS We undertook a genome-wide association study (GWAS) meta-analysis for VTE in consecutively treated children in the Nordic/Baltic acute lymphoblastic leukemia 2008 (ALL2008) cohort and the Australian Evaluation of Risk of ALL Treatment-Related Side-Effects (ERASE) cohort. A total of 92 cases and 1481 controls of European ancestry were included. RESULTS No SNPs reached genome-wide significance (p < 5 × 10-8) in either cohort. Among the top 34 single-nucleotide polymorphisms (SNPs) (p < 1 × 10-6), two loci had concordant effects in both cohorts: ALOX15B (rs1804772) (MAF: 1%; p = 3.95 × 10-7) that influences arachidonic acid metabolism and thus platelet aggregation, and KALRN (rs570684) (MAF: 1%; p = 4.34 × 10-7) that has been previously associated with risk of ischemic stroke, atherosclerosis, and early-onset coronary artery disease. CONCLUSION This represents the largest GWAS meta-analysis conducted to date associating SNPs to VTE in children and adolescents treated on childhood ALL protocols. Validation of these findings is needed and may then lead to patient stratification for VTE preventive interventions. As VTE hemostasis involves multiple pathways, a more powerful GWAS is needed to detect combination of variants associated with VTE.
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Affiliation(s)
- Marion K. Mateos
- Kids Cancer Centre, Sydney Children’s Hospital Randwick, Sydney, NSW 2031, Australia; (G.M.M.); (D.B.); (T.N.T.)
- School of Women and Children’s Health, University of New South Wales (UNSW), Sydney, NSW 2052, Australia;
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; (C.M.); (J.E.G.)
| | - Morten Tulstrup
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, 2100 Copenhagen, Denmark; (M.T.); (B.O.W.); (K.S.)
| | - Michael CJ Quinn
- Statistical Genetics Laboratory, QIMR Berghofer Medical Research Institute, Herston, Brisbane, QLD 4006, Australia; (M.C.J.Q.); (S.M.)
| | - Ruta Tuckuviene
- Department of Pediatrics, Aalborg University Hospital, Hobrovej 18-22, 9000 Aalborg, Denmark;
| | - Glenn M. Marshall
- Kids Cancer Centre, Sydney Children’s Hospital Randwick, Sydney, NSW 2031, Australia; (G.M.M.); (D.B.); (T.N.T.)
- School of Women and Children’s Health, University of New South Wales (UNSW), Sydney, NSW 2052, Australia;
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; (C.M.); (J.E.G.)
| | - Ramneek Gupta
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark;
| | - Chelsea Mayoh
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; (C.M.); (J.E.G.)
| | - Benjamin O. Wolthers
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, 2100 Copenhagen, Denmark; (M.T.); (B.O.W.); (K.S.)
| | - Pasquale M. Barbaro
- Children’s Medical Research Institute, University of Sydney, Westmead, Sydney, NSW 2145, Australia;
- Queensland Children’s Hospital, Brisbane, QLD 4101, Australia
| | - Ellen Ruud
- Department of Pediatric Hematology and Oncology, Division of Pediatric and Adolescent Medicine, Oslo University Hospital, 0424 Oslo, Norway;
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, 0318 Oslo, Norway
| | - Rosemary Sutton
- School of Women and Children’s Health, University of New South Wales (UNSW), Sydney, NSW 2052, Australia;
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; (C.M.); (J.E.G.)
| | - Pasi Huttunen
- Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, New Children’s Hospital, Helsinki University Hospital, Stenbäckinkatu 9, 00290 Helsinki, Finland;
| | - Tamas Revesz
- Women’s and Children’s Hospital, North Adelaide, SA 5006, Australia;
| | - Sonata S. Trakymiene
- Children’s Hospital, Affiliate of Vilnius University Hospital Santaros Klinikos, Santariškių Str. 7, LT-08406 Vilnius, Lithuania;
| | - Draga Barbaric
- Kids Cancer Centre, Sydney Children’s Hospital Randwick, Sydney, NSW 2031, Australia; (G.M.M.); (D.B.); (T.N.T.)
| | - Ulf Tedgård
- Department of Pediatric Hematology and Oncology, Skåne University Hospital, Lasarettsgatan 48, 221 85 Lund, Sweden;
- Department of Clinical Sciences Lund, Pediatrics, Lund University, Sölvegatan 19, BMC F12 Lund, Sweden
| | - Jodie E. Giles
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; (C.M.); (J.E.G.)
| | - Frank Alvaro
- John Hunter Children’s Hospital, Newcastle, NSW 2305, Australia;
- School of Medicine and Public Health, University of Newcastle, University Drive Callaghan, Newcastle, NSW 2308, Australia
| | - Olafur G. Jonsson
- Children’s Hospital, Barnaspitali Hringsins, Landspitali University Hospital, Hringbraut 101, 101 Reykjavik, Iceland;
| | - Françoise Mechinaud
- The Royal Children’s Hospital, Parkville, Melbourne, VIC 3052, Australia;
- Unite Hematologie Immunologie, Hopital universitaire Robert-Debre, 75019 Paris, France
| | - Kadri Saks
- Department of Hematology and Oncology, Tallinn Children’s Hospital, 13419 Tallinn, Estonia;
| | - Daniel Catchpoole
- Tumour Bank, Children’s Cancer Research Unit, The Children’s Hospital at Westmead, Westmead Sydney, NSW 2145, Australia;
| | - Rishi S. Kotecha
- Perth Children’s Hospital, Nedlands, Perth, WA 6009, Australia;
- Telethon Kids Cancer Centre, Telethon Kids Institute, University of Western Australia, Nedlands Perth, WA 6009, Australia
- School of Pharmacy and Biomedical Sciences, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Luciano Dalla-Pozza
- Cancer Centre for Children, The Children’s Hospital at Westmead, Westmead, Sydney, NSW 2145, Australia;
- Children’s Cancer Research Unit, The Children’s Hospital at Westmead, Westmead, Sydney, NSW 2145, Australia
| | - Georgia Chenevix-Trench
- Cancer Genetics Laboratory, QIMR Berghofer Medical Research Institute, Herston, Brisbane, QLD 4006, Australia;
| | - Toby N. Trahair
- Kids Cancer Centre, Sydney Children’s Hospital Randwick, Sydney, NSW 2031, Australia; (G.M.M.); (D.B.); (T.N.T.)
- School of Women and Children’s Health, University of New South Wales (UNSW), Sydney, NSW 2052, Australia;
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; (C.M.); (J.E.G.)
| | - Stuart MacGregor
- Statistical Genetics Laboratory, QIMR Berghofer Medical Research Institute, Herston, Brisbane, QLD 4006, Australia; (M.C.J.Q.); (S.M.)
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, 2100 Copenhagen, Denmark; (M.T.); (B.O.W.); (K.S.)
- Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, 2200 Copenhagen, Denmark
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27
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Mogensen PR, Grell K, Schmiegelow K, Overgaard UM, Wolthers BO, Mogensen SS, Vaag A, Frandsen TL. Dyslipidemia at diagnosis of childhood acute lymphoblastic leukemia. PLoS One 2020; 15:e0231209. [PMID: 32251440 PMCID: PMC7135240 DOI: 10.1371/journal.pone.0231209] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 03/18/2020] [Indexed: 01/19/2023] Open
Abstract
As survival of acute lymphoblastic leukemia (ALL) exceeds 90%, limiting therapy-related toxicity has become a key challenge. Cardio-metabolic dysfunction is a challenge during and after childhood ALL therapy. In a single center study, we measured triglycerides (TG), total cholesterol (TC), high (HDL) and low density lipoproteins (LDL) levels at diagnosis and assessed the association with BMI, early therapy response, on-therapy hyperlipidemia and the toxicities; thromboembolism, osteonecrosis and pancreatitis. We included 127 children (1.0-17.9 years) all treated according to the NOPHO ALL2008 protocol. Dyslipidemia was identified at ALL-diagnosis in 99% of the patients, dominated by reduced HDL levels (98%) and mild hypertriglyceridemia (61%). Hypertriglyceridemia was not associated with body mass index (P = 0.71). Five percent of patients had mild hypercholesterolemia, 14% had mild hypocholesterolemia, 13% had decreased and 1% elevated LDL-levels. Increased TG and TC levels at ALL-diagnosis were not associated with any on-therapy lipid levels. Lipid levels and BMI were not associated to MRD after induction therapy; However, BMI and hypercholesterolemia were associated with worse risk group stratification (P<0.045 for all). The cumulative incidence of thromboembolism was increased both for patients with hypo- (20.0%) and hypercholesterolemia (16.7%) compared to patients with normal TC levels (2.2%) at diagnosis (P = 0.0074). In conclusion, dyslipidemic changes were present prior to ALL-therapy in children with ALL but did not seem to affect dysmetabolic traits during therapy and were not predictive of on-therapy toxicities apart from an association between dyscholesterolemia at time of ALL-diagnosis and risk of thromboembolism. However, the latter should be interpreted with caution due to low number in the groups.
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Affiliation(s)
- Pernille Rudebeck Mogensen
- Department of Diabetes and Bone-metabolic Research Unit, University Hospital Rigshospitalet, Copenhagen, Denmark
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Kathrine Grell
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
- Section of Biostatistics, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
- Institute of Clinical Medicine, University of Copenhagen, Denmark
| | | | - Benjamin Ole Wolthers
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Signe Sloth Mogensen
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Allan Vaag
- Steno Diabetes Center Copenhagen, Copenhagen, Denmark
| | - Thomas Leth Frandsen
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
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28
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Vincristine induces procoagulant activity of the human lymphoblastic leukemia cell line Jurkat through the release of extracellular vesicles. J Thromb Thrombolysis 2020; 48:195-202. [PMID: 31175530 DOI: 10.1007/s11239-019-01894-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Thromboembolic events are frequent and serious complications of acute lymphoblastic leukaemia treatment. The importance of chemotherapy in the pathogenesis of this increased risk is enhanced by the fact that thrombosis rarely occurs at diagnosis. Our study aims at investigating the effect of chemotherapy on pro-coagulant activity (PCA), phosphatidylserine (PS) exposure, tissue factor (TF) activity and derived extracellular vesicles (EV) of Jurkat cells. Jurkat cells were treated with two commonly used chemotherapeutics: Vincristine (VCR) or Daunorubicin (DNR), at relevant concentrations. PCA of cells and derived EV were evaluated using Thrombin generation Assay (TGA). Cells or EV were incubated with annexin V or anti TF antibodies to assess the respective contribution of TF and PS. PS exposure on cells was analysed by flow cytometry. Derived EV were evaluated in fluorescence microscopy and flow cytometry. Untreated Jurkat cells and EV support thrombin generation. Thrombin generation was abolished when PS activity was inhibited by annexin V. VCR treatment resulted in a time dependent increase of thrombin generation. After VCR exposure, TF activity increased as well as PS exposure increased on the cell surface. The increase in TF activity was abolished by annexin V indicating that PS was required. A spontaneous release of EV from Jurkat cells was observed and VCR treatment increased the number of generated EV. Our results indicate that VCR increased the PCA of Jurkat cells predominantly through PS exposure and increased EV generation. Lymphoid blasts derived EV could be biomarkers to determine high thrombotic risk ALL patients.
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Vázquez-Cornejo E, Morales-Ríos O, Juárez-Villegas LE, Islas Ortega EJ, Vázquez-Estupiñán F, Garduño-Espinosa J. Medication errors in a cohort of pediatric patients with acute lymphoblastic leukemia on remission induction therapy in a tertiary care hospital in Mexico. Cancer Med 2019; 8:5979-5987. [PMID: 31445000 PMCID: PMC6792484 DOI: 10.1002/cam4.2438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 05/28/2019] [Accepted: 07/08/2019] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION Medication errors (MEs) are the main type of preventable adverse events in medical care, as well as safety indicators in the medication processes. Advances in the quality of care in pediatric acute lymphoblastic leukemia (ALL) have enabled to improve clinical outcomes. However, ME epidemiology in pediatric oncology is still incipient in developing countries. In view of this, the objectives of this study were to estimate the incidence of MEs, determine their types and consequences, as well as their preventability in the induction treatment of children with ALL at Hospital Infantil de Mexico Federico Gómez. METHODS We reviewed the remission-induction chemotherapy records of children with ALL between January 2015 and December 2017. A two-phase review was carried out for ME identification and verification. The consequences of errors were determined by agreement between reviewers. RESULTS We reviewed 1762 chemotherapy orders involving 181 children. MEs were observed in 16.9% of orders and in 57.5% of patients. Prescription errors were the most common (93.3%), with wrong dose errors (90.2%) being predominant. Only 3.7% of wrong dose errors were intercepted, while 12.2% of the children experienced adverse drug events (ADEs) preceded by some wrong dose error. CONCLUSIONS MEs were common, since they occurred in 57.5% of children with ALL on induction treatment and involved 16.5% of chemotherapy orders. Only 3.7% of MEs were intercepted, while 12.2% of children had ADEs related to overdose. Measures are required to prevent calculation error in prescriptions, as well as training of the nursing staff to intercept MEs.
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Affiliation(s)
- Edmundo Vázquez-Cornejo
- Post-degree in Medical, Dentistry and Health Sciences, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.,Evidence-based Medicine Unit, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | - Olga Morales-Ríos
- Department of Clinical Research, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | - Luis E Juárez-Villegas
- Department of Oncology, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | - Erika J Islas Ortega
- Department of Pharmaceutical Services, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
| | | | - Juan Garduño-Espinosa
- Directorate of Research, Hospital Infantil de México Federico Gómez, Ciudad de México, Mexico
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Albertsen BK, Grell K, Abrahamsson J, Lund B, Vettenranta K, Jónsson ÓG, Frandsen TL, Wolthers BO, Heyman M, Schmiegelow K. Intermittent Versus Continuous PEG-Asparaginase to Reduce Asparaginase-Associated Toxicities: A NOPHO ALL2008 Randomized Study. J Clin Oncol 2019; 37:1638-1646. [DOI: 10.1200/jco.18.01877] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
PURPOSE Asparaginase is an essential drug in childhood acute lymphoblastic leukemia (ALL) therapy and is frequently given for months to obtain continuous asparagine depletion. We randomly assigned patients to continuous versus intermittent pegylated-asparaginase (PEG-asp) treatment, hypothesizing there would be decreased toxicity with unchanged efficacy. METHODS Children (median age, 4.2 years) treated for non–high-risk ALL according to the Nordic Society for Pediatric Hematology and Oncology ALL2008 protocol received five intramuscular PEG-asp injections (1,000 IU/m2) every two weeks and were then randomly assigned to additional three doses (6-week intervals [experimental arm], n = 309) versus 10 doses (2-week intervals [standard arm], n = 316). The primary end point was noninferior (6% margin) disease-free survival. Toxicity reduction was a secondary end point. Occurrence of asparaginase-associated hypersensitivity, pancreatitis, osteonecrosis, and thromboembolism were prospectively registered. RESULTS After a median follow-up of 4.1 years, the 5-year disease-free survival was 92.2% (95% CI, 88.6 to 95.8) and 90.8% (95% CI, 87.0 to 94.6) in the experimental and standard arms, respectively. The 3-year cumulative incidence of any first asparaginase-associated toxicity (hypersensitivity [n = 13]; osteonecrosis [n = 29]; pancreatitis [n = 24]; thromboembolism [n = 17]) was 9.3% in the experimental arm and 18.1% in the standard arm ( P = .001). Asparaginase-associated toxicity reduction was confirmed in sex- and risk-group–adjusted Cox regression analysis stratified by age (≥ 10 and < 10 years; hazard ratio, 0.48; P = .001). The experimental arm had the lowest incidences of all four toxicities, reaching significance for pancreatitis (6-month risk, 5.8% v 1.3%; P = .002). CONCLUSION The excellent cure rates and reduced toxicity risk support the use of intermittent PEG-asp therapy after the first 10 weeks in future childhood ALL trials that apply prolonged PEG-asp therapy.
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Affiliation(s)
| | - Kathrine Grell
- University of Copenhagen, Copenhagen, Denmark,
- Rigshospitalet, Copenhagen, Denmark
| | | | - Bendik Lund
- Trondheim University Hospital, Trondheim, Norway
| | | | | | | | | | - Mats Heyman
- Karolinska University Hospital, Stockholm, Sweden
| | - Kjeld Schmiegelow
- University of Copenhagen, Copenhagen, Denmark,
- Rigshospitalet, Copenhagen, Denmark
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Mateos M, Trahair T, Mayoh C, Barbaro P, Sutton R, Revesz T, Barbaric D, Giles J, Alvaro F, Mechinaud F, Catchpoole D, Kotecha R, Dalla-Pozza L, Quinn M, MacGregor S, Chenevix-Trench G, Marshall G. Risk factors for symptomatic venous thromboembolism during therapy for childhood acute lymphoblastic leukemia. Thromb Res 2019; 178:132-138. [DOI: 10.1016/j.thromres.2019.04.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/10/2019] [Accepted: 04/10/2019] [Indexed: 01/19/2023]
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Symptomatic Cerebral Sinovenous Thrombosis Associated With L-Asparaginase In Children With Acute Lymphoblastic Leukemia: A Single Institution Experience Over 17 Years. J Pediatr Hematol Oncol 2018; 40:e450-e453. [PMID: 29554021 DOI: 10.1097/mph.0000000000001127] [Citation(s) in RCA: 11] [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
BACKGROUND Cerebral sinovenous thrombosis (CSVT) is a rare, yet important complication of acute lymphoblastic leukemia (ALL) therapy, associated with significant morbidity and mortality. Paucity of data from India prompted us to report our experience with CSVT over a period of 17 years. MATERIALS AND METHODS This is a retrospective analysis of 500 consecutive ALL patients, below 18 year of age, treated between January 1998 and December 2014, who developed symptomatic CVST. RESULTS Seven of the 467 eligible patients developed symptomatic CVST with an incidence of 1.5% (7/467). Six of the CVST events, occurred during induction and 1 during reinduction. Median time to symptoms was 21 days (range, 2 to 27 d) from first exposure to L-asparaginase therapy. Management included low-molecular-weight heparin (enoxaparin sodium) at a dose of 1 mg/kg twice a day for at least 3 months along with supportive care. There were 2 thrombosis-attributable deaths. The remaining patients tolerated rechallenge with L-asparaginase uneventfully during reinduction, under cover of heparin prophylaxis. Complete neurological recovery was observed in all surviving patients. CONCLUSIONS Incidence of symptomatic L-asparaginase associated CSVT during ALL treatment was 1.5% with high case fatality rate (28%). It is noteworthy that full neurological recovery is likely in surviving patients, and rechallenge with L-asparaginase is safe with heparin prophylaxis. Currently available screening methods are not practically implementable in resource-limited settings.
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Greiner J, Schrappe M, Claviez A, Zimmermann M, Niemeyer C, Kolb R, Eberl W, Berthold F, Bergsträsser E, Gnekow A, Lassay E, Vorwerk P, Lauten M, Sauerbrey A, Rischewski J, Beilken A, Henze G, Korte W, Möricke A. THROMBOTECT - a randomized study comparing low molecular weight heparin, antithrombin and unfractionated heparin for thromboprophylaxis during induction therapy of acute lymphoblastic leukemia in children and adolescents. Haematologica 2018; 104:756-765. [PMID: 30262570 PMCID: PMC6442986 DOI: 10.3324/haematol.2018.194175] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 09/27/2018] [Indexed: 12/15/2022] Open
Abstract
Thromboembolism is a serious complication of induction therapy for childhood
acute lymphoblastic leukemia. We prospectively compared the efficacy and safety
of antithrombotic interventions in the consecutive leukemia trials ALL-BFM 2000
and AIEOP-BFM ALL 2009. Patients with newly diagnosed acute lymphoblastic
leukemia (n=949, age 1 to 18 years) were randomized to receive low-dose
unfractionated heparin, prophylactic low molecular weight heparin (enoxaparin)
or activity-adapted antithrombin throughout induction therapy. The primary
objective of the study was to determine whether enoxaparin or antithrombin
reduces the incidence of thromboembolism as compared to unfractionated heparin.
The principal safety outcome was hemorrhage; leukemia outcome was a secondary
endpoint. Thromboembolism occurred in 42 patients (4.4%). Patients
assigned to unfractionated heparin had a higher risk of thromboembolism
(8.0%) compared with those randomized to enoxaparin (3.5%;
P=0.011) or antithrombin (1.9%;
P<0.001). The proportion of patients who refused
antithrombotic treatment as allocated was 3% in the unfractionated
heparin or antithrombin arms, and 33% in the enoxaparin arm. Major
hemorrhage occurred in eight patients (no differences between the groups). The
5-year event-free survival was 80.9±2.2% among patients assigned
to antithrombin compared to 85.9±2.0% in the unfractionated
heparin group (P=0.06), and 86.2±2.0% in the
enoxaparin group (P=0.10). In conclusion, prophylactic use of
antithrombin or enoxaparin significantly reduced thromboembolism. Despite the
considerable number of patients rejecting the assigned treatment with
subcutaneous injections, the result remains unambiguous. Thromboprophylaxis -
for the present time primarily with enoxaparin - can be recommended for children
and adolescents with acute lymphoblastic leukemia during induction therapy.
Whether and how antithrombin may affect leukemia outcome remains to be
determined.
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Affiliation(s)
- Jeanette Greiner
- Children's Hospital of Eastern Switzerland, Hematology and Oncology Department, St. Gallen, Switzerland
| | - Martin Schrappe
- Department of Pediatrics, Christian-Albrechts-University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Alexander Claviez
- Department of Pediatrics, Christian-Albrechts-University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Martin Zimmermann
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Germany
| | - Charlotte Niemeyer
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology and Oncology, Medical Center - Faculty of Medicine, University of Freiburg, Germany
| | - Reinhard Kolb
- Department of Pediatrics, Zentrum für Kinder- und Jugendmedizin, Klinikum Oldenburg GmbH, Germany
| | - Wolfgang Eberl
- Institute for Clinical Transfusion Medicine and Children's Hospital, Klinikum Braunschweig GmbH, Germany
| | - Frank Berthold
- Department of Pediatric Hematology and Oncology, Children's Hospital, University of Cologne, Germany
| | - Eva Bergsträsser
- Department of Pediatric Oncology, University Children's Hospital, Zurich, Switzerland
| | - Astrid Gnekow
- Hospital for Children and Adolescents, Klinikum Augsburg, Germany
| | - Elisabeth Lassay
- Division of Pediatric Hematology, Oncology and Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Germany
| | - Peter Vorwerk
- Pediatric Oncology, Otto von Guericke University Children's Hospital, Magdeburg, Germany
| | - Melchior Lauten
- University Hospital Schleswig-Holstein, Department of Pediatrics, University of Lübeck, Germany
| | | | - Johannes Rischewski
- Department of Oncology/Hematology, Children's Hospital, Cantonal Hospital Lucerne, Switzerland
| | - Andreas Beilken
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Germany
| | - Günter Henze
- Department of Pediatric Oncology/Hematology, Charité Universitätsmedizin Berlin, Germany
| | - Wolfgang Korte
- Center for Laboratory Medicine and Hemostasis and Hemophilia Center, St. Gallen, Switzerland
| | - Anja Möricke
- Department of Pediatrics, Christian-Albrechts-University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
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Thromboembolism in acute lymphoblastic leukemia: results of NOPHO ALL2008 protocol treatment in patients aged 1 to 45 years. Blood 2018; 131:2475-2484. [PMID: 29661787 DOI: 10.1182/blood-2018-01-827949] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 03/30/2018] [Indexed: 01/19/2023] Open
Abstract
Thromboembolism frequently occurs during acute lymphoblastic leukemia (ALL) therapy. We prospectively registered thromboembolic events during the treatment of 1772 consecutive Nordic/Baltic patients with ALL aged 1 to 45 years who were treated according to the Nordic Society of Pediatric Hematology and Oncology ALL2008 protocol (July 2008-April 2017). The 2.5-year cumulative incidence of thromboembolism (N = 137) was 7.9% (95% confidence interval [CI], 6.6-9.1); it was higher in patients aged at least 10 years (P < .0001). Adjusted hazard ratios (HRas) were associated with greater age (range, 10.0-17.9 years: HRa, 4.9 [95% CI, 3.1-7.8; P < .0001]; 18.0-45.9 years: HRa, 6.06 [95% CI, 3.65-10.1; P < .0001]) and mediastinal mass at ALL diagnosis (HRa, 2.1; 95% CI, 1.0-4.3; P = .04). In a multiple absolute risk regression model addressing 3 thromboembolism risk factors, age at least 10 years had the largest absolute risk ratio (RRage, 4.7 [95% CI, 3.1-7.1]; RRenlarged lymph nodes, 2.0 [95% CI, 1.2-3.1]; RRmediastinal mass, 1.6 [95% CI, 1.0-2.6]). Patients aged 18.0 to 45.9 years had an increased hazard of pulmonary embolism (HRa, 11.6; 95% CI, 4.02-33.7; P < .0001), and patients aged 10.0 to 17.9 years had an increased hazard of cerebral sinus venous thrombosis (HRa, 3.3; 95% CI, 1.5-7.3; P = .003) compared with children younger than 10.0 years. Asparaginase was truncated in 38/128 patients with thromboembolism, whereas thromboembolism diagnosis was unassociated with increased hazard of relapse (P = .6). Five deaths were attributable to thromboembolism, and patients younger than 18.0 years with thromboembolism had increased hazard of dying compared with same-aged patients without thromboembolism (both P ≤ .01). In conclusion, patients aged at least 10 years could be candidates for preemptive antithrombotic prophylaxis. However, the predictive value of age 10 years or older, enlarged lymph nodes, and mediastinal mass remain to be validated in another cohort.
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Sibson KR, Biss TT, Furness CL, Grainger JD, Hough RE, Macartney C, Payne JH, Chalmers EA. BSH Guideline: management of thrombotic and haemostatic issues in paediatric malignancy. Br J Haematol 2018; 180:511-525. [DOI: 10.1111/bjh.15112] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/28/2017] [Accepted: 11/07/2017] [Indexed: 01/19/2023]
Affiliation(s)
- Keith R. Sibson
- Department of Haematology; Great Ormond Street Hospital; London UK
| | - Tina T. Biss
- The Newcastle Upon Tyne Hospitals NHS Foundation Trust; Newcastle Upon Tyne UK
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Tullius BP, Athale U, van Ommen CH, Chan AKC, Palumbo JS, Balagtas JMS. The identification of at-risk patients and prevention of venous thromboembolism in pediatric cancer: guidance from the SSC of the ISTH. J Thromb Haemost 2018; 16:175-180. [PMID: 29178421 DOI: 10.1111/jth.13895] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Indexed: 01/19/2023]
Affiliation(s)
- B P Tullius
- Division of Pediatric Hematology/Oncology and BMT, Nationwide Children's Hospital, Columbus, OH, USA
| | - U Athale
- Pediatrics, McMaster University and Division of Paediatric Hematology/Oncology, McMaster Children's Hospital, Hamilton Health Sciences, Hamilton, ON, Canada
| | - C H van Ommen
- Department of Pediatric Hematology, Erasmus MC Sophia Children's Hospital, Rotterdam, the Netherlands
| | - A K C Chan
- Pediatrics, McMaster University and Division of Paediatric Hematology/Oncology, McMaster Children's Hospital, Hamilton Health Sciences, Hamilton, ON, Canada
| | - J S Palumbo
- Division of Pediatric Hematology, University of Cincinnati, Cincinnati, OH, USA
| | - J M S Balagtas
- Division of Pediatric Hematology/Oncology, Stanford University, Stanford, CA, USA
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Schmiegelow K, Müller K, Mogensen SS, Mogensen PR, Wolthers BO, Stoltze UK, Tuckuviene R, Frandsen T. Non-infectious chemotherapy-associated acute toxicities during childhood acute lymphoblastic leukemia therapy. F1000Res 2017; 6:444. [PMID: 28413626 PMCID: PMC5389408 DOI: 10.12688/f1000research.10768.1] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/04/2017] [Indexed: 01/19/2023] Open
Abstract
During chemotherapy for childhood acute lymphoblastic leukemia, all organs can be affected by severe acute side effects, the most common being opportunistic infections, mucositis, central or peripheral neuropathy (or both), bone toxicities (including osteonecrosis), thromboembolism, sinusoidal obstruction syndrome, endocrinopathies (especially steroid-induced adrenal insufficiency and hyperglycemia), high-dose methotrexate-induced nephrotoxicity, asparaginase-associated hypersensitivity, pancreatitis, and hyperlipidemia. Few of the non-infectious acute toxicities are associated with clinically useful risk factors, and across study groups there has been wide diversity in toxicity definitions, capture strategies, and reporting, thus hampering meaningful comparisons of toxicity incidences for different leukemia protocols. Since treatment of acute lymphoblastic leukemia now yields 5-year overall survival rates above 90%, there is a need for strategies for assessing the burden of toxicities in the overall evaluation of anti-leukemic therapy programs.
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Affiliation(s)
- Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
- Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Klaus Müller
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
- Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Signe Sloth Mogensen
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Pernille Rudebeck Mogensen
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
- Department of Diabetes and Metabolism, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Benjamin Ole Wolthers
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Ulrik Kristoffer Stoltze
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Ruta Tuckuviene
- Department of Pediatrics, Aalborg University Hospital, Aalborg, Denmark
| | - Thomas Frandsen
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
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Venous thrombosis in children and adolescents with Hodgkin lymphoma in Sweden. Thromb Res 2017; 152:64-68. [PMID: 28249199 DOI: 10.1016/j.thromres.2017.02.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 01/30/2017] [Accepted: 02/14/2017] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Pediatric patients with Hodgkin lymphoma (HL) have several risk factors for venous thromboembolism (VTE). Although these patients are occasionally treated with thromboprophylaxis, no guidelines are implemented in Sweden. Scarce data from adult patients indicate an increased risk of VTE, but pediatric data is largely missing. Given the favorable overall survival of HL, there should reasonably be more focus on preventing complications. MATERIALS AND METHODS We conducted a retrospective cohort study, including all patients registered in the Childhood Cancer Registry under the age of 18years diagnosed with HL between January 2005 and December 2015 in Sweden. RESULTS Data was retrieved from the medical records of all 163 patients (100%) at six Swedish pediatric cancer centers. The incidence of VTE was 7.7% (symptomatic VTE 3.9%). The median follow-up was 3.4years (range 0.3-10.5). Only five patients (3.1%) were treated with thromboprophylaxis. All VTE events occurred in the older age category (11-17years) and all but one (92.7%) had a mediastinal mass. While the VTE did not significantly affect the treatment of HL, it caused increased morbidity and 2/12 developed a post-thrombotic syndrome. No significant risk factors for VTE were identified. CONCLUSIONS VTE is a relatively common complication of HL and its treatment, causing increased acute and long-term morbidity. However, due to limited number of events we could not demonstrate risk-factors for VTE that would identify patients who might benefit from thromboprophylaxis.
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Rozen L, Noubouossie D, Dedeken L, Huybrechts S, Lê PQ, Ferster A, Demulder A. Different profile of thrombin generation in children with acute lymphoblastic leukaemia treated with native or pegylated asparaginase: A cohort study. Pediatr Blood Cancer 2017; 64:294-301. [PMID: 27605400 DOI: 10.1002/pbc.26228] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 08/02/2016] [Indexed: 01/19/2023]
Abstract
BACKGROUND Asparaginase (Asp) and corticosteroid (CS) treatment in patients with acute lymphoblastic leukaemia (ALL) is associated with an increased risk of thrombotic events. OBJECTIVE Characterization of global haemostatic phenotypes of patients with ALL during Asp therapy. PROCEDURE Thrombin generation (TG) was monitored in platelet-poor plasma of 56 children treated for a B lineage ALL (36 with native, 20 with PEG Asp) using 1 pM tissue factor and 4 μM phospholipids, with and without thrombomodulin. Protein C activity (PC), free protein S (PS), antithrombin (AT) and fibrinogen levels were also measured. RESULTS Elevated endogenous thrombin potential (ETP) and peak of TG were noted at diagnosis, throughout the Induction phase and Late Intensification but was significantly less for PEG than for native Asp (P < 0.001), while age, sex, type of corticosteroid during Induction and molecular response had no significant effect. The reduction of ETP after addition of thrombomodulin was significantly lower in ALL children compared with that in controls, suggesting impairment in PS/PC pathway. Three patients experienced thrombosis: two treated with native and one with PEG Asp. The two patients with native Asp had, at the time of thrombosis, a prothrombotic profile. CONCLUSIONS Treatment with Asp, in combination with CS, enhances TG in children with ALL, more significantly with native than PEG Asp, which is present early at diagnosis, persists during Induction and reappears during Late Intensification. This is consistent with the high incidence of thrombotic events described during these phases of therapy. The less pronounced effect of PEG Asp remains to be elucidated.
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Affiliation(s)
- Laurence Rozen
- Laboratory of hematology, CHU Brugmann, LHUB-ULB, ULB Université libre de Bruxelles, Brussels, Belgium
| | - Denis Noubouossie
- Laboratory of hematology, CHU Brugmann, LHUB-ULB, ULB Université libre de Bruxelles, Brussels, Belgium
| | - Laurence Dedeken
- Hematology-Oncology Unit, Hôpital Universitaire des Enfants Reine Fabiola, ULB Université libre de Bruxelles, Brussels, Belgium
| | - Sophie Huybrechts
- Hematology-Oncology Unit, Hôpital Universitaire des Enfants Reine Fabiola, ULB Université libre de Bruxelles, Brussels, Belgium
| | - Phu Quoc Lê
- Hematology-Oncology Unit, Hôpital Universitaire des Enfants Reine Fabiola, ULB Université libre de Bruxelles, Brussels, Belgium
| | - Alina Ferster
- Hematology-Oncology Unit, Hôpital Universitaire des Enfants Reine Fabiola, ULB Université libre de Bruxelles, Brussels, Belgium
| | - Anne Demulder
- Laboratory of hematology, CHU Brugmann, LHUB-ULB, ULB Université libre de Bruxelles, Brussels, Belgium
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Musgrave KM, van Delft FW, Avery PJ, Clack RM, Chalmers EA, Qureshi A, Vora AJ, Biss TT. Cerebral sinovenous thrombosis in children and young adults with acute lymphoblastic leukaemia - a cohort study from the United Kingdom. Br J Haematol 2016; 179:667-669. [PMID: 27392277 DOI: 10.1111/bjh.14231] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Kathryn M Musgrave
- Department of Haematology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Frederik W van Delft
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Peter J Avery
- School of Mathematics and Statistics, Newcastle University, Newcastle upon Tyne, UK
| | - Rachel M Clack
- Clinical Trial Service Unit, University of Oxford, Oxford, UK
| | | | - Amrana Qureshi
- Oxford Children's Hospital, Oxford University NHS Foundation Trust, Oxford, UK
| | - Ajay J Vora
- Sheffield Children's Hospital, Sheffield, UK
| | - Tina T Biss
- Department of Haematology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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