1
|
Graff Z, Wachter F, Eapen M, Lehmann L, Cooper T. Navigating Treatment Options and Communication in Relapsed Pediatric AML. Am Soc Clin Oncol Educ Book 2024; 44:e438690. [PMID: 38862135 DOI: 10.1200/edbk_438690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Despite improved outcomes in newly diagnosed pediatric AML, relapsed disease remains a therapeutic challenge. Factors contributing to slow progress in improving outcomes include inherent challenges in pediatric clinical trial accrual and the scarcity of novel targeted/immunotherapy agents available for pediatric development. This paradigm is changing, however, as international collaboration grows in parallel with the development of promising targeted agents. In this review, we discuss the therapeutic landscape of relapsed pediatric AML, including conventional chemotherapy, targeted therapies, and the challenges of drug approvals in this patient population. We highlight current efforts to improve communication among academia, industry, and regulatory authorities and discuss the importance of international collaboration to improve access to new therapies. Among the therapeutic options, we highlight the approach to second hematopoietic stem cell transplant (HSCT) and discuss which patients are most likely to benefit from this potentially curative intervention. Importantly, we acknowledge the challenges in providing these high-risk interventions to our patients and their families and the importance of shared communication and decision making when considering early-phase clinical trials and second HSCT.
Collapse
Affiliation(s)
- Zachary Graff
- Department of Pediatrics, Division of Hematology, Oncology, and BMT, Medical College of Wisconsin, Milwaukee, WI
| | - Franziska Wachter
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - Mary Eapen
- Department of Medicine, Division of Hematology/Oncology, Medical College of Wisconsin, Milwaukee, WI
| | - Leslie Lehmann
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - Todd Cooper
- Department of Pediatrics, Division of Hematology and Oncology, Seattle Children's Hospital, Seattle, WA
| |
Collapse
|
2
|
Branella GM, Lee JY, Okalova J, Parwani KK, Alexander JS, Arthuzo RF, Fedanov A, Yu B, McCarty D, Brown HC, Chandrakasan S, Petrich BG, Doering CB, Spencer HT. Ligand-based targeting of c-kit using engineered γδ T cells as a strategy for treating acute myeloid leukemia. Front Immunol 2023; 14:1294555. [PMID: 38022523 PMCID: PMC10679681 DOI: 10.3389/fimmu.2023.1294555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 10/26/2023] [Indexed: 12/01/2023] Open
Abstract
The application of immunotherapies such as chimeric antigen receptor (CAR) T therapy or bi-specific T cell engager (BiTE) therapy to manage myeloid malignancies has proven more challenging than for B-cell malignancies. This is attributed to a shortage of leukemia-specific cell-surface antigens that distinguish healthy from malignant myeloid populations, and the inability to manage myeloid depletion unlike B-cell aplasia. Therefore, the development of targeted therapeutics for myeloid malignancies, such as acute myeloid leukemia (AML), requires new approaches. Herein, we developed a ligand-based CAR and secreted bi-specific T cell engager (sBite) to target c-kit using its cognate ligand, stem cell factor (SCF). c-kit is highly expressed on AML blasts and correlates with resistance to chemotherapy and poor prognosis, making it an ideal candidate for which to develop targeted therapeutics. We utilize γδ T cells as a cytotoxic alternative to αβ T cells and a transient transfection system as both a safety precaution and switch to remove alloreactive modified cells that may hinder successful transplant. Additionally, the use of γδ T cells permits its use as an allogeneic, off-the-shelf therapeutic. To this end, we show mSCF CAR- and hSCF sBite-modified γδ T cells are proficient in killing c-kit+ AML cell lines and sca-1+ murine bone marrow cells in vitro. In vivo, hSCF sBite-modified γδ T cells moderately extend survival of NSG mice engrafted with disseminated AML, but therapeutic efficacy is limited by lack of γδ T-cell homing to murine bone marrow. Together, these data demonstrate preclinical efficacy and support further investigation of SCF-based γδ T-cell therapeutics for the treatment of myeloid malignancies.
Collapse
Affiliation(s)
- Gianna M. Branella
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, GA, United States
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
| | - Jasmine Y. Lee
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, GA, United States
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
| | - Jennifer Okalova
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
- Molecular Systems Pharmacology Program, Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, GA, United States
| | - Kiran K. Parwani
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, GA, United States
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
| | - Jordan S. Alexander
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
| | - Raquel F. Arthuzo
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, GA, United States
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
| | - Andrew Fedanov
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
| | - Bing Yu
- Expression Therapeutics, Inc., Tucker, GA, United States
| | - David McCarty
- Expression Therapeutics, Inc., Tucker, GA, United States
| | | | - Shanmuganathan Chandrakasan
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
| | | | - Christopher B. Doering
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
- Molecular Systems Pharmacology Program, Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, GA, United States
| | - H. Trent Spencer
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA, United States
- Molecular Systems Pharmacology Program, Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, GA, United States
| |
Collapse
|
3
|
Karlsson L, Cheuk D, De Moerloose B, Hasle H, Jahnukainen K, Juul-Dam KL, Kaspers G, Kovalova Z, Lausen B, Nyström UN, Palle J, Pronk CJ, Saks K, Tierens A, Zeller B, Abrahamsson J. Characteristics and outcome of primary resistant disease in paediatric acute myeloid leukaemia. Br J Haematol 2023; 201:757-765. [PMID: 36762836 DOI: 10.1111/bjh.18685] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/16/2023] [Accepted: 01/25/2023] [Indexed: 02/11/2023]
Abstract
A significant proportion of events in paediatric acute myeloid leukaemia (AML) are caused by resistant disease (RD). We investigated clinical and biological characteristics in 66 patients with RD from 1013 children with AML registered and treated according to the NOPHO-AML 93, NOPHO-AML 2004, DB AML-01 and NOPHO-DBH AML 2012 protocols. Risk factors for RD were age10 years or older and a white-blood-cell count (WBC) of 100 × 109 /L or more at diagnosis. The five-year overall survival (OS) was 38% (95% confidence interval [CI]: 28%-52%). Of the 63 children that received salvage therapy with chemotherapy, 59% (N = 37) achieved complete remission (CR) with OS 57% (95% CI: 42%-75%) compared to 12% (95% CI: 4%-35%) for children that did not achieve CR. Giving more than two salvage chemotherapy courses did not increase CR rates. OS for all 43 patients receiving allogeneic haematopoietic stem cell transplantation (HSCT) was 49% (95% CI: 36%-66%). Those achieving CR and proceeding to HSCT had an OS of 56% (95% CI: 41%-77%, N = 30). This study showed that almost 40% of children with primary resistant AML can be cured with salvage therapy followed by HSCT. Children that did not achieve CR after two salvage courses with chemotherapy did not benefit from additional chemotherapy.
Collapse
Affiliation(s)
- Lene Karlsson
- Department of Pediatrics, Institution for Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Daniel Cheuk
- Department of Pediatrics and Adolescent Medicine, Hong Kong Children's Hospital and Hong Kong Pediatric Hematology and Oncology Study Group (HKPHOSG), Hong Kong, China
| | - Barbara De Moerloose
- Department of Pediatric Hematology-Oncology, Ghent University Hospital, Ghent, Belgium
| | - Henrik Hasle
- Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Kirsi Jahnukainen
- New Children's hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | | | - Gertjan Kaspers
- Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Emma Children's Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam, Pediatric Oncology, Amsterdam, The Netherlands
| | - Zanna Kovalova
- Department of Paediatric Oncology/Haematology, Children's Clinical University Hospital, Riga, Latvia
| | - Birgitte Lausen
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | | | - Josefine Palle
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | | | - Kadri Saks
- Department of Paediatrics, SA Tallinna Lastehaigla, Tallinn, Estonia
| | - Anne Tierens
- Department of Pathobiology and Laboratory Medicine, University Health Network, Toronto General Hospital, Toronto, Ontario, Canada
| | - Bernward Zeller
- Department of Pediatrics, Oslo University Hospital, Oslo, Norway
| | - Jonas Abrahamsson
- Department of Pediatrics, Institution for Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| |
Collapse
|
4
|
Lv W, Chen T, Wang S, Li C, Zhang B, Wang L, Xv F, Cao F, Wang J, Chen L, Liao C, Li N, Liu H. Feasibility of high-throughput drug sensitivity screening (HDS)-guided treatment for children with refractory or relapsed acute myeloid leukemia. Front Pediatr 2023; 11:1117988. [PMID: 36873635 PMCID: PMC9982438 DOI: 10.3389/fped.2023.1117988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 01/23/2023] [Indexed: 02/19/2023] Open
Abstract
Relapsed/refractory (rel/ref) acute myeloid leukemia (AML) has a very high mortality rate. At present, hematopoietic stem cell transplantation (HSCT) is the most effective treatment for rel/ref AML. The remission of the primary disease before HSCT is crucial for the transplantation to be effective. Therefore, it is critical to choose a suitable type of chemotherapy before HSCT. Here, we recorded the outcomes of high-throughput drug sensitivity screening (HDS) in children with rel/ref AML. Thirty-seven pediatric rel/ref AML patients who received HDS from September 2017 until July 2021 were analyzed retrospectively. Most of the patients (24 patients, 64.9%) had adverse cytogenetics. Two patients had rel/ref AML with central nervous system leukemia. The complete remission (CR) rate was 67.6%. Eight patients developed IV grade bone marrow suppression. Twenty-three patients (62.2%) underwent HSCT. The 3-year overall survival (OS) and EFS rates were 45.9% and 43.2%, respectively. Infection in the myelosuppression stage was the main cause of death. The outcome of HDS was superior to the commonly reported rates. These results suggest that HDS may be a novel treatment option for pediatric patients with rel/ref AML, and it is a promising transitional regimen prior to HSCT.
Collapse
Affiliation(s)
- Wenxiu Lv
- Department of Hematology and Oncology, Anhui Provincial Children's Hospital (Anhui Hospital, Pediatric Hospital of Fudan University), Hefei, Anhui, China.,Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Tianping Chen
- Department of Hematology and Oncology, Anhui Provincial Children's Hospital (Anhui Hospital, Pediatric Hospital of Fudan University), Hefei, Anhui, China
| | - Shen Wang
- Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Chun Li
- Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Bo Zhang
- Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Liang Wang
- Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Fang Xv
- Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Fang Cao
- Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Jing Wang
- Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Li Chen
- Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Chenglin Liao
- Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Na Li
- Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Hongjun Liu
- Department of Hematology and Oncology, Anhui Provincial Children's Hospital (Anhui Hospital, Pediatric Hospital of Fudan University), Hefei, Anhui, China
| |
Collapse
|
5
|
Meena JP, Pathak N, Gupta AK, Bakhshi S, Gupta R, Makkar H, Seth R. Molecular evaluation of gene mutation profiles and copy number variations in pediatric acute myeloid leukemia. Leuk Res 2022; 122:106954. [PMID: 36162216 DOI: 10.1016/j.leukres.2022.106954] [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: 05/23/2022] [Revised: 08/19/2022] [Accepted: 09/17/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND The objectives of this study were to investigate the mutation profiles of targeted genes and copy number variations (CNVs) in normal cytogenetics (CN) pediatric acute myeloid leukemia (AML). METHODS This prospective study was conducted from October 2018 to December 2020. The next-generation sequencing (NGS) and chromosomal microarray analyses (CMA) were performed in pediatric CN-AML patients. RESULTS Out of 94 children (aged ≤18 years), 70 patients with AML (24 excluded) underwent conventional karyotyping/cytogenetic analyses. Forty-five (64.3%) of patients had abnormal/ recurrent cytogenetic abnormalities and 25 (35.7%) had normal cytogenetics. Twenty-three out of 25 CN-AML were further processed for gene mutation profile and CNVs using NGS and CMA, respectively. Twenty-two out of 23 (95.7%) patients were detected to have mutations in various genes. The common mutations were: NRAS, NPM1, CEBPA, KRAS, KIT, RUNX1, NOTCH1, WT1, GATA1, GATA2, FLT3, KMT2D, FLT3-TKD, and PHF6. Copy number variations (CNVs) were detected in nine patients (39%), and eight (34.8%) had a long contiguous stretch of homozygosity (LCSH) /loss of heterozygosity (LOH). An LCSH was detected on chromosomes 5, 7, 11, and 19. The gains were more common than losses (8 vs 2). The gains were observed on chromosomes 8, 9, 14, 19, 21, and 22, and the losses were detected on chromosomes 7 and 10. Monosomy was observed in three patients. Three patients (monosomy7, n = 2, and FLT-ITD, n = 1) were reclassified into the high-risk category. Post-induction, complete remission was achieved in all evaluable patients. CONCLUSION CN-AML patients have genetic abnormalities that can be detected by more advanced techniques like NGS and CMA. These genetic abnormalities play a role in risk stratification that may remain hidden in otherwise CN-AML.
Collapse
Affiliation(s)
- Jagdish Prasad Meena
- Division of Pediatric Oncology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi 110029, India.
| | - Nivedita Pathak
- Division of Pediatric Oncology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi 110029, India.
| | - Aditya Kumar Gupta
- Division of Pediatric Oncology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi 110029, India.
| | - Sameer Bakhshi
- Department of Medical Oncology, Dr. B.R.A. IRCH, All India Institute of Medical Sciences, New Delhi 110029, India.
| | - Ritu Gupta
- Laboratory Oncology Unit, Dr. B.R.A. IRCH, All India Institute of Medical Sciences, New Delhi 110029, India.
| | - Harshita Makkar
- Division of Pediatric Oncology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi 110029, India.
| | - Rachna Seth
- Division of Pediatric Oncology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi 110029, India.
| |
Collapse
|
6
|
Hematopoietic Cell Transplantation in the Treatment of Pediatric Acute Myelogenous Leukemia and Myelodysplastic Syndromes: Guidelines from the American Society of Transplantation and Cellular Therapy. Transplant Cell Ther 2022; 28:530-545. [DOI: 10.1016/j.jtct.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 11/20/2022]
|
7
|
Gao X, Fan S, Zhang X. MiR-1306-5p promotes cell proliferation and inhibits cell apoptosis in acute myeloid leukemia by downregulating PHF6 expression. Leuk Res 2022; 120:106906. [DOI: 10.1016/j.leukres.2022.106906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 06/01/2022] [Accepted: 06/20/2022] [Indexed: 11/26/2022]
|
8
|
Gupte A, Al-Antary ET, Edwards H, Ravindranath Y, Ge Y, Taub JW. The Paradox of Myeloid Leukemia Associated with Down Syndrome. Biochem Pharmacol 2022; 201:115046. [PMID: 35483417 DOI: 10.1016/j.bcp.2022.115046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/11/2022] [Accepted: 04/12/2022] [Indexed: 02/03/2023]
Abstract
Children with Down syndrome constitute a distinct genetic population who has a greater risk of developing acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML) compared to their non-Down syndrome counterparts. The risk for developing solid tumors is also distinct from the non-Down syndrome population. In the case of myeloid leukemias, the process of leukemogenesis in Trisomy 21 begins in early fetal life where genetic drivers including GATA1 mutations lead to the development of the preleukemic condition, transient abnormal myelopoiesis (TAM). Various other mutations in genes encoding cohesin, epigenetic regulators and RAS pathway can result in subsequent progression to Myeloid Leukemia associated with Down Syndrome (ML-DS). The striking paradoxical feature in the Down syndrome population is that even though there is a higher predisposition to developing AML, they are also very sensitive to chemotherapy agents, particularly cytarabine, thus accounting for the very high cure rates for ML-DS compared to AML in children without Down syndrome. Current clinical trials for ML-DS attempt to balance effective curative therapies while trying to reduce treatment-associated toxicities including infections by de-intensifying chemotherapy doses, if possible. The small proportion of patients with relapsed ML-DS have an extremely poor prognosis and require the development of new therapies.
Collapse
Affiliation(s)
- Avanti Gupte
- Division of Pediatric Hematology/Oncology, Children's Hospital of Michigan, Detroit, Michigan, USA; Department of Pediatrics, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Eman T Al-Antary
- Division of Pediatric Hematology/Oncology, Children's Hospital of Michigan, Detroit, Michigan, USA; Department of Pediatrics, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Holly Edwards
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan, USA; Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Yaddanapudi Ravindranath
- Division of Pediatric Hematology/Oncology, Children's Hospital of Michigan, Detroit, Michigan, USA
| | - Yubin Ge
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan, USA; Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Jeffrey W Taub
- Division of Pediatric Hematology/Oncology, Children's Hospital of Michigan, Detroit, Michigan, USA; Department of Pediatrics, Wayne State University School of Medicine, Detroit, Michigan, USA; Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan, USA; Discipline of Pediatrics, Central Michigan University, Saginaw, Michigan, USA.
| |
Collapse
|
9
|
Cytogenetic risk groups for childhood acute myeloid leukemia based on survival analysis in a cancer referral hospital from Perú. ACTA ACUST UNITED AC 2021; 41:302-313. [PMID: 34214271 PMCID: PMC8382291 DOI: 10.7705/biomedica.5747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Indexed: 12/27/2022]
Abstract
Introduction: Acute myeloid leukemia is a heterogeneous disorder characterized by immature myeloid cell proliferation. Cytogenetic analysis has revealed the presence of chromosomal aberrations important to patient prognosis.
Objective: To determine cytogenetic risk groups of pediatric patients with acute myeloid leukemia according to overall survival.
Materials and methods: In this cross-sectional observational study, the clinical records of pediatric patients diagnosed with de novo acute myeloid leukemia admitted to the Instituto Nacional de Enfermedades Neoplásicas between 2001 and 2011 with cytogenetic analysis of bone marrow were included. Cytogenetic risk groups were established according to the criteria of the Medical Research Council. Overall survival curves were generated with the Kaplan-Meier method and compared using the Mantel-Cox test and Cox regression with the software R, version 3.3.2.
Results: A total of 130 patients were included, 68 males (52.3%) and 62 females (47.7%), most of them with subtype M2 (33%). The average age was 7.7 years (range: 0-15 years). Chromosomal aberrations were observed in 60.8% of the patients, the most frequent of which was the translocation t(8;21). According to the overall survival analysis, two cytogenetic risk groups were established: favorable and unfavorable.
Conclusion: Two groups of cytogenetic risk were determined: high (or unfavorable) and standard (favorable).
Collapse
|
10
|
Survival Following Relapse in Children with Acute Myeloid Leukemia: A Report from AML-BFM and COG. Cancers (Basel) 2021; 13:cancers13102336. [PMID: 34066095 PMCID: PMC8151466 DOI: 10.3390/cancers13102336] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/05/2021] [Accepted: 05/07/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Acute myeloid leukemia in children remains a difficult disease to cure despite intensive therapies that push the limits of tolerability. Though the intent of initial therapy should be the prevention of relapse, about 30% of all patients experience a relapse. Hence, relapse therapy remains critically important for survival. This retrospective analysis of two large international study groups (COG and BFM) was undertaken to describe the current survival, response rates and clinical features that predict outcomes. We demonstrate that children with relapsed AML may be cured with cytotoxic therapy followed by HSCT. High-risk features at initial diagnosis and early relapse remain prognostic for post-relapse survival. Current response criteria are not aligned with the standards of care for children, nor are the count recovery thresholds meaningful for prognosis in children with relapsed AML. Our data provide a new baseline for future treatment planning and will allow an updated stratification in upcoming studies. Abstract Post-relapse therapy remains critical for survival in children with acute myeloid leukemia (AML). We evaluated survival, response and prognostic variables following relapse in independent cooperative group studies conducted by COG and the population-based AML-BFM study group. BFM included 197 patients who relapsed after closure of the last I-BFM relapse trial until 2017, while COG included 852 patients who relapsed on the last Phase 3 trials (AAML0531, AAML1031). Overall survival at 5 years (OS) was 42 ± 4% (BFM) and 35 ± 2% (COG). Initial high-risk features (BFM 32 ± 6%, COG 26 ± 4%) and short time to relapse (BFM 29 ± 4%, COG 25 ± 2%) predicted diminished survival. In the BFM dataset, there was no difference in OS for patients who had a complete remission with full hematopoietic recovery (CR) following post-relapse re-induction compared to those with partial neutrophil and platelet recovery (CRp and CRi) only (52 ± 7% vs. 63 ± 10%, p = 0.39). Among 90 patients alive at last follow-up, 87 had received a post-relapse hematopoietic stem cell transplant (HSCT). OS for patients with post-relapse HSCT was 54 ± 4%. In conclusion, initial high-risk features and early relapse remain prognostic. Response assessment with full hematopoietic recovery following initial relapse therapy does not predict survival. These data indicate the need for post-relapse risk stratification in future studies of relapse therapies.
Collapse
|
11
|
Outcomes of pediatric patients who relapse after first HCT for acute leukemia or MDS. Bone Marrow Transplant 2021; 56:1866-1875. [PMID: 33742153 DOI: 10.1038/s41409-021-01267-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 02/12/2021] [Accepted: 03/03/2021] [Indexed: 11/08/2022]
Abstract
Disease relapse remains a major cause of treatment failure in patients receiving allogeneic hematopoietic cell transplantation (alloHCT) for high-risk acute leukemias or myelodysplastic syndromes (MDS). Comprehensive data on outcomes after post-transplant relapse are lacking, especially in pediatric patients. Our objective was to assess the impact of various transplant-, patient-, and disease-related variables on survival and outcomes in patients who relapse after alloHCT. We describe our institutional experience with 221 pediatric patients who experienced disease relapse after their first alloHCT for acute leukemias or MDS between 1990 and 2018. In a multivariable model, being in first complete remission at first alloHCT, longer duration of remission after alloHCT, experiencing GVHD and receiving a transplant in a more recent time period were significantly associated with a higher likelihood of receiving a second alloHCT after post-transplant relapse. Of these variables, only longer interval from alloHCT to relapse, receiving a second alloHCT or DLI, and receiving a transplant in a more recent time period were associated with improved overall survival. Our data support pursuing second alloHCT for patients who have experienced relapse after their first transplant, as that remains the only salvage modality with a reasonable chance of inducing long-term remission.
Collapse
|
12
|
Second Relapse of Pediatric Patients with Acute Myeloid Leukemia: A Report on Current Treatment Strategies and Outcome of the AML-BFM Study Group. Cancers (Basel) 2021; 13:cancers13040789. [PMID: 33672815 PMCID: PMC7918758 DOI: 10.3390/cancers13040789] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/09/2021] [Accepted: 02/11/2021] [Indexed: 01/27/2023] Open
Abstract
Simple Summary Children with acute myeloid leukemia (AML) experience high relapse rates of about 30%; still, survival rates following the first relapse are encouraging. Hence, it is critically important to examine the consequences of a second relapse; however, little is known about this subgroup of patients. This retrospective population-based analysis intends to describe response, survival and prognostic factors relevant for the survival of children with second relapse of AML. Treatment approaches include many different therapeutic regimens, including palliation and intensive treatment with curative intent (63% of the patients). Survival is poor; however, patients who respond to reinduction attempts can be rescued with subsequent hematopoietic stem cell transplantation. We deciphered risk factors, such as short time interval from first to second relapse below one year as being associated with a poor outcome. This analysis will help to improve future international treatment planning and patient care of children with advanced AML. Abstract Successful management of relapse is critical to improve outcomes of children with acute myeloid leukemia (AML). We evaluated response, survival and prognostic factors after a second relapse of AML. Among 1222 pediatric patients of the population-based AML-Berlin–Frankfurt–Munster (BFM) study group (2004 until 2017), 73 patients met the quality parameters for inclusion in this study. Central review of source documentation warranted the accuracy of reported data. Treatment approaches included palliation in 17 patients (23%), intensive therapy with curative intent (n = 46, 63%) and other regimens (n = 10). Twenty-five patients (35%) received hematopoietic stem cell transplantation (HSCT), 21 of whom (88%) had a prior HSCT. Survival was poor, with a five-year probability of overall survival (pOS) of 15 ± 4% and 31 ± 9% following HSCT (n = 25). Early second relapse (within one year after first relapse) was associated with dismal outcome (pOS 2 ± 2%, n = 44 vs. 33 ± 9%, n = 29; p < 0.0001). A third complete remission (CR) is required for survival: 31% (n = 14) of patients with intensive treatment achieved a third CR with a pOS of 36 ± 13%, while 28 patients (62%) were non-responders (pOS 7 ± 5%). In conclusion, survival is poor but possible, particularly after a late second relapse and an intensive chemotherapy followed by HSCT. This analysis provides a baseline for future treatment planning.
Collapse
|
13
|
Moritake H, Tanaka S, Miyamura T, Nakayama H, Shiba N, Shimada A, Terui K, Yuza Y, Koh K, Goto H, Kakuda H, Saito A, Hasegawa D, Iwamoto S, Taga T, Adachi S, Tomizawa D. The outcomes of relapsed acute myeloid leukemia in children: Results from the Japanese Pediatric Leukemia/Lymphoma Study Group AML-05R study. Pediatr Blood Cancer 2021; 68:e28736. [PMID: 32991072 DOI: 10.1002/pbc.28736] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/04/2020] [Accepted: 09/06/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND The prognosis of children with acute myeloid leukemia (AML) has improved with the efficacy of hematopoietic cell transplantation (HCT) as a second-line therapy and improvements in supportive care following anthracycline- and cytarabine-based chemotherapy; however, the outcomes of children with relapsed AML still remain unsatisfactory. PROCEDURE In order to identify prognostic factors and improve their prognosis, we analyzed 111 patients who relapsed after treatment with the Japanese Pediatric Leukemia/Lymphoma Study Group (JPLSG) AML-05 protocol and who were registered in the retrospective JPLSG AML-05R study. RESULTS The 5-year overall survival rate was 36.1%. The major determinant of survival was duration from the diagnosis to relapse. The mean duration in the nonsurviving group (10.1 ± 4.1 months) was shorter than that in the surviving group (16.3 ± 8.3 months) (P < .01). Moreover, achieving a second complete remission (CR2) prior to HCT was associated with a good prognosis (P < .01). Etoposide, cytarabine, and mitoxantrone (ECM)- or fludarabine, cytarabine, and granulocyte colony-stimulating factor (FLAG)-based regimens were therefore recommended for reinduction therapy (P < .01). A genetic analysis also revealed the prognostic significance of FMS-like tyrosine kinase 3 (FLT3)-internal tandem duplication as a poor prognostic marker (P = .04) and core binding factor-AML, t(8;21), and inv(16) as good prognostic markers (P < .01). CONCLUSIONS Achieving a CR2 prior to HCT is important in order to improve the prognosis of relapsed pediatric AML. Recent molecular targeted therapies, such as FLT3 inhibitors, may contribute to overcome their prognoses. Larger prospective investigations are necessary to establish individualized treatment strategies for patients with relapsed childhood AML.
Collapse
Affiliation(s)
- Hiroshi Moritake
- Division of Pediatrics, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Shiro Tanaka
- Department of Clinical Biostatistics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takako Miyamura
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hideki Nakayama
- Department of Pediatrics, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - Norio Shiba
- Department of Pediatrics, Yokohama City University Hospital, Yokohama, Japan
| | - Akira Shimada
- Department of Pediatrics, Okayama University, Okayama, Japan
| | - Kiminori Terui
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yuki Yuza
- Department of Hematology/Oncology, Tokyo Metropolitan Children's Medical Center, Fuchu, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Hiroaki Goto
- Division of Hemato-oncology/Regenerative Medicine, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Harumi Kakuda
- Department of Hematology/Oncology, Chiba Children's Hospital, Chiba, Japan
| | - Akiko Saito
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Daisuke Hasegawa
- Department of Pediatrics, St. Luke's International Hospital, Tokyo, Japan
| | - Shotaro Iwamoto
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan
| | - Takashi Taga
- Department of Pediatrics, Shiga University of Medical Science, Otsu, Japan
| | - Souichi Adachi
- Department of Human Health Sciences, Kyoto University, Kyoto, Japan
| | - Daisuke Tomizawa
- Division of Leukemia and Lymphoma, Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| |
Collapse
|
14
|
Hoffman AE, Schoonmade LJ, Kaspers GJ. Pediatric relapsed acute myeloid leukemia: a systematic review. Expert Rev Anticancer Ther 2020; 21:45-52. [PMID: 33111585 DOI: 10.1080/14737140.2021.1841640] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Introduction: Pediatric relapsed acute myeloid leukemia (AML) remains lethal in the majority of cases, despite intensive therapy. Randomized trials are largely lacking, and the main issues of optimal therapy and prognostic factors remain unclear. Area covered: This systematic review includes all literature evaluating treatment outcome after first relapse. We searched databases PubMed and Embase.com. Twelve out of six thousand articles were ultimately included, based on age of the population (<21 years), relapsed AML, and information on clinical outcome (second complete remission (CR2), disease-free survival (DFS), event-free survival (EFS) and overall survival (OS)). There was only one randomized clinical trial reported. This review shows that there is no standard treatment for relapsed AML in children, and that outcome varies for CR2 and (2- to 10-year) OS rates, mean 64% (range, 50-75%), and 31% (16-43%), respectively. Children treated with chemotherapy only in first complete remission (CR1) tend to have better outcome after relapse than children receiving allo-SCT in CR1. Allo-SCT seems to be the most effective consolidation therapy in children achieving CR2, after relapse. Duration of CR1 was the most frequently reported statistically significant prognostic factor. Through randomized clinical trials, better knowledge of prognostic factors enabling risk-stratified treatment, and of more effective and less toxic therapies, should contribute to better clinical outcome for children with relapsed AML. Expert opinion: Outcome of pediatric relapsed AML has improved to OS rates up to 40%. However, there is a lack of knowledge on (independent) prognostic factors, optimal reinduction chemotherapy, timing of allo-SCT, and late effects. International collaboration should enable large, randomized clinical trials addressing these issues.
Collapse
Affiliation(s)
- Anne E Hoffman
- Emma Children's Hospital, Amsterdam UMC, Pediatric Oncology, Vrije Universiteit Amsterdam , Amsterdam
| | - Linda J Schoonmade
- Medical Library, Vrije Universiteit Amsterdam , Amsterdam, The Netherlands
| | - Gertjan Jl Kaspers
- Emma Children's Hospital, Amsterdam UMC, Pediatric Oncology, Vrije Universiteit Amsterdam , Amsterdam.,Princess Máxima Center For Pediatric Oncolocy , The Netherlands, Utrecht
| |
Collapse
|
15
|
Harnessing Gene Expression Profiles for the Identification of Ex Vivo Drug Response Genes in Pediatric Acute Myeloid Leukemia. Cancers (Basel) 2020; 12:cancers12051247. [PMID: 32429253 PMCID: PMC7281398 DOI: 10.3390/cancers12051247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/06/2020] [Accepted: 05/12/2020] [Indexed: 12/28/2022] Open
Abstract
Novel treatment strategies are of paramount importance to improve clinical outcomes in pediatric AML. Since chemotherapy is likely to remain the cornerstone of curative treatment of AML, insights in the molecular mechanisms that determine its cytotoxic effects could aid further treatment optimization. To assess which genes and pathways are implicated in tumor drug resistance, we correlated ex vivo drug response data to genome-wide gene expression profiles of 73 primary pediatric AML samples obtained at initial diagnosis. Ex vivo response of primary AML blasts towards cytarabine (Ara C), daunorubicin (DNR), etoposide (VP16), and cladribine (2-CdA) was associated with the expression of 101, 345, 206, and 599 genes, respectively (p < 0.001, FDR 0.004–0.416). Microarray based expression of multiple genes was technically validated using qRT-PCR for a selection of genes. Moreover, expression levels of BRE, HIF1A, and CLEC7A were confirmed to be significantly (p < 0.05) associated with ex vivo drug response in an independent set of 48 primary pediatric AML patients. We present unique data that addresses transcriptomic analyses of the mechanisms underlying ex vivo drug response of primary tumor samples. Our data suggest that distinct gene expression profiles are associated with ex vivo drug response, and may confer a priori drug resistance in leukemic cells. The described associations represent a fundament for the development of interventions to overcome drug resistance in AML, and maximize the benefits of current chemotherapy for sensitive patients.
Collapse
|
16
|
Semary SF, Hammad M, Soliman S, Yassen D, Gamal M, Albeltagy D, Hamdy N, Mahmoud S. Outcome of Childhood Acute Myeloid Leukemia With FLT3-ITD Mutation: The Experience of Children's Cancer Hospital Egypt, 2007-17. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2020; 20:e529-e541. [PMID: 32473792 DOI: 10.1016/j.clml.2020.04.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/12/2020] [Accepted: 04/13/2020] [Indexed: 11/27/2022]
Abstract
INTRODUCTION The presence of FMS-like tyrosine kinase 3 (FLT3) internal tandem duplication (ITD) mutation in pediatric acute myeloid leukemia (AML) is associated with high rates of induction failure and worse survival. Its presence places the patient into a high-risk group. We aimed to describe the outcome of pediatric AML with FLT3-ITD mutation. PATIENTS AND METHODS We performed a retrospective analysis of cases of AML from July 2007 till July 2017 at Children's Cancer Hospital Egypt. RESULTS Seventy-one patients had FLT3 gene mutation out of 687 patients with AML. Sixty-five patients had FLT3 gene mutation with allelic ratio > 0.4; 43 (66.1%) of 65 patients experienced complete remission (CR). Of the 43 patients, 16 patients maintained CR, 18 patients relapsed after first CR, 8 patients died, and 1 patient was lost to follow-up. Patients with relapsing disease died after salvage chemotherapy, except for one patient, who was alive after second CR. Allogeneic bone marrow transplantation (allo-BMT) was performed for 9 (13.8%) of 65 patients in first CR, of whom 8 were alive and in CR, and 1 patient experienced disease relapse and died. Seven patients (10.7%) were alive without allo-BMT. Three years' overall and event-free survival for patients with FLT3-ITD mutation with high allelic ratio was 26.9% and 22.8%, respectively. Three years' overall and event-free survival for patients treated with allo-BMT was 77.8% and 78.8%, respectively, versus patients treated without allo-BMT, 16.3% and 12.8%, respectively. CONCLUSION FLT3-ITD mutation in pediatric AML was associated with poor treatment outcomes, and the survival of relapsing patients was extremely poor. Allo-BMT in first remission was the best treatment option. Alternative donor transplants and FLT3 inhibitors are needed to improve outcome in developing countries.
Collapse
Affiliation(s)
- Samah Fathy Semary
- Department of Clinical Oncology, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt; Department of Pediatric Oncology, Children's Cancer Hospital Egypt, Cairo, Egypt.
| | - Mahmoud Hammad
- Department of Pediatric Oncology, Children's Cancer Hospital Egypt, Cairo, Egypt; Department of Pediatric Oncology, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Sonya Soliman
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, Egypt; Department of Clinical Pathology, Children's Cancer Hospital Egypt, Cairo, Egypt
| | - Dina Yassen
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, Egypt; Department of Clinical Pathology, Children's Cancer Hospital Egypt, Cairo, Egypt
| | - Marwa Gamal
- Department of Clinical Pharmacy, Children's Cancer Hospital Egypt, Cairo, Egypt
| | - Doaa Albeltagy
- Department of Clinical Research, Children's Cancer Hospital Egypt, Cairo, Egypt
| | - Nayera Hamdy
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, Egypt; Department of Clinical Pathology, Children's Cancer Hospital Egypt, Cairo, Egypt
| | - Sonia Mahmoud
- Department of Pediatric Oncology, Children's Cancer Hospital Egypt, Cairo, Egypt; Department of Pediatric Oncology, National Cancer Institute, Cairo University, Cairo, Egypt
| |
Collapse
|
17
|
Niktoreh N, Lerius B, Zimmermann M, Gruhn B, Escherich G, Bourquin JP, Dworzak M, Sramkova L, Rossig C, Creutzig U, Reinhardt D, Rasche M. Gemtuzumab ozogamicin in children with relapsed or refractory acute myeloid leukemia: a report by Berlin-Frankfurt-Münster study group. Haematologica 2018; 104:120-127. [PMID: 30093401 PMCID: PMC6312035 DOI: 10.3324/haematol.2018.191841] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 08/03/2018] [Indexed: 12/13/2022] Open
Abstract
Despite intensified salvage treatments, children with relapsed/refractory acute myeloid leukemia (AML) have poor survival. We evaluated gemtuzumab ozogamicin (CD33-targeted drug) used on a compassionate basis in patients diagnosed from 1995 until 2014 within Acute Myeloid Leukemia Berlin-Frankfurt-Münster studies, and identified 76 patients (<18 years) with highly-advanced and pre-treated AML [refractory de novo acute myeloid leukemia (n=10), de novo AML refractory to relapse (1st early: n=41; 1st late: n=10; 2nd or more: n=10), and secondary AML (n=5)]. At doses of 2.5–10 mg/m2, gemtuzumab ozogamicin was administered in 1-4 cycles as single agent (47%), combined with cytarabine (47%), or others (6%). Most common grade 3/4 adverse events were infections or febrile neutropenia (78% of severe adverse events), infusion-related immunological reactions (6%), and gastrointestinal symptoms (5%). Three patients experienced veno-occlusive disease (one fatal due to exacerbation of a pre-existing cardiomyopathy). Sixty-four percent received subsequent hematopoietic stem cell transplantation. Probability of 4-year overall survival was 18±5% in all, 27±7% in patients with and 0% in patients without hematopoietic stem cell transplantation (P<0.0001). Administration of gemtuzumab ozogamicin on a patient-specific, compassionate use basis was frequently considered in our study group and proved to be effective for bridging children with very advanced AML to hematopoietic stem cell transplantation. Uniform prospective studies for these patients are urgently needed.
Collapse
Affiliation(s)
- Naghmeh Niktoreh
- Department of Pediatric Hematology and Oncology, University Hospital Essen, Germany
| | - Beate Lerius
- Department of Pediatric Hematology and Oncology, University Hospital Essen, Germany
| | - Martin Zimmermann
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Germany
| | - Bernd Gruhn
- Department of Pediatrics, Jena University Hospital, Germany
| | - Gabriele Escherich
- Department of Pediatric Hematology and Oncology, Eppendorf University Hospital, Hamburg, Germany
| | - Jean-Pierre Bourquin
- Division of Pediatric Hematology/Oncology, University Children's Hospital Zurich, Switzerland
| | - Michael Dworzak
- St. Anna Children's Hospital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Austria
| | - Lucie Sramkova
- Department of Pediatric Hematology and Oncology, 2 Faculty of Medicine, Charles University and University Hospital Motol, Prague, Czech Republic
| | - Claudia Rossig
- University Children's Hospital Münster, Pediatric Hematology and Oncology, Germany
| | - Ursula Creutzig
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Germany
| | - Dirk Reinhardt
- Department of Pediatric Hematology and Oncology, University Hospital Essen, Germany
| | - Mareike Rasche
- Department of Pediatric Hematology and Oncology, University Hospital Essen, Germany
| |
Collapse
|
18
|
Gemtuzumab Ozogamicin Containing Chemotherapy for Relapsed or Refractory Acute Myeloid Leukemia (AML) in Children. J Pediatr Hematol Oncol 2018; 40:163-168. [PMID: 29240026 DOI: 10.1097/mph.0000000000001010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
19
|
Del Principe MI, Buccisano F, Soddu S, Maurillo L, Cefalo M, Piciocchi A, Consalvo MI, Paterno G, Sarlo C, De Bellis E, Zizzari A, De Angelis G, Fraboni D, Divona M, Voso MT, Sconocchia G, Del Poeta G, Lo-Coco F, Arcese W, Amadori S, Venditti A. Involvement of central nervous system in adult patients with acute myeloid leukemia: Incidence and impact on outcome. Semin Hematol 2018; 55:209-214. [PMID: 30502849 DOI: 10.1053/j.seminhematol.2018.02.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 12/23/2017] [Accepted: 02/17/2018] [Indexed: 12/21/2022]
Abstract
Incidence and effect on outcome of central nervous system (CNS) involvement in adult patients with acute myeloid leukemia (AML) is not clearly defined. To address this issue, 103 consecutive adult patients with newly diagnosed AML, regardless of neurologic symptoms, were submitted to a routine explorative lumbar puncture. Cerebrospinal fluid (CSF) samples were collected from 65 males and 38 females. All 103 CSF samples were examined by conventional cytology (CC) whereas 95 (92%) also by flow cytometry (FCM). At diagnosis, 70 patients (68%) were CNS negative (CNS-), whereas 33 (32%) were CNS positive (CNS+). In 11 of 33 (33%), CNS infiltration was documented either by CC or FCM , in 21 (67%) only by FCM. CNS positivity was significantly associated with a M4-M5 phenotype of the underlying AML (P = .0003) and with high levels of lactate dehydrogenase (P = .006). Overall, 80 of 103 (78%) achieved complete remission with no significant differences between CNS+ and CNS- patients. Five-year disease-free survival and overall survival were found to be shorter in CNS+ patients than in those CNS- (18% vs 50%, P = .006 and 19% vs 46%, P = .02, respectively). In multivariate analysis, CNS status and age were found to affect independently overall survival. In conclusion, the incidence of CNS involvement in adult patients with newly diagnosed AML is higher than expected. Regardless of neurologic symptoms, it should always be searched at diagnosis; CSF samples should routinely be investigated by FCM since a certain proportion of CNS involvements might remain undetected if examination is exclusively CC based.
Collapse
Affiliation(s)
- Maria Ilaria Del Principe
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy.
| | - Francesco Buccisano
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | | | - Luca Maurillo
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Mariagiovanna Cefalo
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | | | - Maria Irno Consalvo
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Giovangiacinto Paterno
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Chiara Sarlo
- Hematology, University Campus Biomedico, Rome, Italy
| | - Eleonora De Bellis
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Annagiulia Zizzari
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Gottardo De Angelis
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Daniela Fraboni
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Mariadomenica Divona
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Maria Teresa Voso
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Giuseppe Sconocchia
- Laboratoy of Tumor Immunology and Immunotherapy, Institute of Translation Pharmacology, Department of Medicine, National Research Council of Italy (CNR), Rome, Italy
| | - Giovanni Del Poeta
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Francesco Lo-Coco
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy; Laboratory of Neuro-Oncohematology Unit, Santa Lucia Foundation, Rome, Italy
| | - William Arcese
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Sergio Amadori
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Adriano Venditti
- Hematology, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| |
Collapse
|
20
|
Wang J, Yuan L, Cheng H, Fei X, Yin Y, Gu J, Xue S, He J, Yang F, Wang X, Yang Y, Zhang W. Salvaged allogeneic hematopoietic stem cell transplantation for pediatric chemotherapy refractory acute leukemia. Oncotarget 2018; 9:3143-3159. [PMID: 29423036 PMCID: PMC5790453 DOI: 10.18632/oncotarget.22809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 10/27/2017] [Indexed: 01/31/2023] Open
Abstract
There is an ongoing debate concerning the performance of salvaged allogeneic hematopoietic stem cell transplantation (allo-HSCT) in pediatric patients with acute refractory leukemia, in whom the prognosis is quite dismal. Few studies have ever been conducted on this subject. This may be partly due to missed opportunities by majority of the patients in such situations. To investigate the feasibility, evaluate the efficiency, and identify the prognostic factors of allo-HSCT in this sub-setting, the authors performed a single institution-based retrospective analysis. A total of 44 patients, of whom 28 had acute myeloid leukemia (AML), 13 had acute lymphocytic leukemia (ALL), and 3 had mixed phenotype leukemia (MPL), were enrolled in this study. With a median follow-up of 19 months, the estimated 2-year overall survival (OS) and progression free survival (PFS) were 34.3% (95% CI, 17.9–51.4%) and 33.6% (95% CI, 18.0–50.1%), respectively. The estimated 2-year incidence rates of relapse and non-relapse mortality (NRM) were 43.8% (95% CI 26.4–60.0%) and 19.6% (95% CI 9.1–32.9%), respectively. The estimated 100-day cumulative incidence of acute graft versus host disease (aGvHD) was 43.6% (95% CI 28.7–57.5%), and the 1-year cumulative incidence of chronic GvHD (cGvHD) was 45.5% (95% CI 30.5–59.3%). Compared with the previous studies, the multivariate analysis in this study additionally identified that female donors and cGvHD were associated with lower relapse and better PFS and OS. Male recipients, age younger than 10 years, a diagnosis of ALL, and the intermediate-adverse cytogenetic risk group were associated with increased relapse. On the contrary, extramedullary disease (EMD) and aGvHD were only linked to worse PFS. These data suggested that although only one-third of the patients would obtain PFS over 2 years, salvaged allo-HSCT is still the most reliable and best therapeutic strategy for refractory pediatric acute leukemia. If probable, choosing a female donor, better management of aGvHD, and induction of cGvHD promotes patient survival.
Collapse
Affiliation(s)
- Jingbo Wang
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| | - Lei Yuan
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| | - Haoyu Cheng
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| | - Xinhong Fei
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| | - Yumin Yin
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| | - Jiangying Gu
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| | - Song Xue
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| | - Junbao He
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| | - Fan Yang
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| | - Xiaocan Wang
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| | - Yixin Yang
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| | - Weijie Zhang
- Department of Hematology, China Aerospace Central Hospital, Beijing, China
| |
Collapse
|
21
|
Creutzig U, Dworzak MN, Zimmermann M, Reinhardt D, Sramkova L, Bourquin JP, Hasle H, Abrahamsson J, Kaspers G, van den Heuvel MM, Reedijk AMJ, De Moerloose B, Locatelli F, Masetti R. Characteristics and outcome in patients with central nervous system involvement treated in European pediatric acute myeloid leukemia study groups. Pediatr Blood Cancer 2017; 64. [PMID: 28598536 DOI: 10.1002/pbc.26664] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 04/21/2017] [Accepted: 04/30/2017] [Indexed: 11/11/2022]
Abstract
BACKGROUND There is no consensus on the treatment for pediatric patients with acute myeloid leukemia and initial central nervous system (CNS) involvement. METHODS To evaluate different CNS-directed treatment options (intrathecal [IT] therapy, CNS irradiation, hematopoietic stem cell transplantation [HSCT]), 261 patients (excluding acute promyelocytic leukemia) with initial CNS involvement treated in trials with similar intensive chemotherapy by four cooperative European study groups (1998-2013) were studied and compared with CNS-negative patients from the Berlin-Frankfurt-Münster group. RESULTS Patient characteristics in the different study groups were comparable. Young age, high white blood cell count, extramedullary involvement other than the CNS, monoblastic morphology, and inv(16) were associated with CNS involvement (each P < 0.0001). There were no major differences in outcome between the study groups. The cumulative incidence of relapse (CIR) regarding the CNS was higher in initially CNS-positive versus initially CNS-negative patients (all: 8 ± 2% vs. 3 ± 1%, P(Gray) = 0.001; isolated: 4 ± 1% vs. 1 ± 0%, P(Gray) = 0.03). However, global outcome of the CNS-positive cohort (overall survival, 64 ± 3%; event-free survival 48 ± 3%; and CIR 33% ± 3%) did not differ significantly from CNS-negative patients. Risk groups defined by cytogenetics were of likewise prognostic significance in CNS-positive and -negative patients. CNS treatment with cranial irradiation was not superior compared to IT therapy and systemic chemotherapy (± HSCT). CONCLUSION Although CNS relapses occurred more frequently in initially CNS-positive patients, their global outcome was similar as in CNS-negative patients. Intensified IT therapy was heterogeneous; however, at least eight applications, preferably with triple IT chemotherapy, seem to be appropriate to accompany dose-intensive systemic chemotherapy.
Collapse
Affiliation(s)
- Ursula Creutzig
- Department of Pediatric Hematology and Oncology, Children's Hospital, Hannover Medical School, Hannover, Germany
| | - Michael N Dworzak
- Department of Pediatrics, St. Anna Children's Hospital and Children's Cancer Research Institute, Medical University of Vienna, Vienna, Austria
| | - Martin Zimmermann
- Department of Pediatric Hematology and Oncology, Children's Hospital, Hannover Medical School, Hannover, Germany
| | - Dirk Reinhardt
- Department of Pediatric Hematology-Oncology, University of Duisburg-Essen, Essen, Germany
| | - Lucie Sramkova
- Department of Pediatric Hematology and Oncology, Charles University Prague, Czech Pediatric Hematology Working Group (CPH), Prague, Czech Republic
| | - Jan Pierre Bourquin
- Department of Pediatric Hematology/Oncology, University of Zurich, Zurich, Switzerland
| | - Henrik Hasle
- Department of Pediatrics, Aarhus University Hospital Skejby, Aarhus, Denmark
| | - Jonas Abrahamsson
- Department of Pediatrics, Institution of Clinical Sciences, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Gertjan Kaspers
- Pediatric Oncology, VU University Medical Center, Amsterdam, The Netherlands.,Dutch Childhood Oncology Group (DCOG), The Hague, The Netherlands
| | - Mary M van den Heuvel
- Dutch Childhood Oncology Group (DCOG), The Hague, The Netherlands.,Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | | | - Barbara De Moerloose
- Department of Pediatric Hematology-Oncology and Stem Cell Transplantation, Ghent University Hospital, Ghent, Belgium
| | - Franco Locatelli
- Department of Pediatric Hematology and Oncology, IRCCS Ospedale Pediatrico Bambino Gesù, University of Pavia, Rome, Italy
| | - Riccardo Masetti
- Oncologia ed Ematologia Pediatrica "Lalla Seràgnoli" Ospedale Sant'Orsola Malpighi Università di Bologna, Bologna, Italy
| |
Collapse
|
22
|
Arber DA, Borowitz MJ, Cessna M, Etzell J, Foucar K, Hasserjian RP, Rizzo JD, Theil K, Wang SA, Smith AT, Rumble RB, Thomas NE, Vardiman JW. Initial Diagnostic Workup of Acute Leukemia: Guideline From the College of American Pathologists and the American Society of Hematology. Arch Pathol Lab Med 2017; 141:1342-1393. [PMID: 28225303 DOI: 10.5858/arpa.2016-0504-cp] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT - A complete diagnosis of acute leukemia requires knowledge of clinical information combined with morphologic evaluation, immunophenotyping and karyotype analysis, and often, molecular genetic testing. Although many aspects of the workup for acute leukemia are well accepted, few guidelines have addressed the different aspects of the diagnostic evaluation of samples from patients suspected to have acute leukemia. OBJECTIVE - To develop a guideline for treating physicians and pathologists involved in the diagnostic and prognostic evaluation of new acute leukemia samples, including acute lymphoblastic leukemia, acute myeloid leukemia, and acute leukemias of ambiguous lineage. DESIGN - The College of American Pathologists and the American Society of Hematology convened a panel of experts in hematology and hematopathology to develop recommendations. A systematic evidence review was conducted to address 6 key questions. Recommendations were derived from strength of evidence, feedback received during the public comment period, and expert panel consensus. RESULTS - Twenty-seven guideline statements were established, which ranged from recommendations on what clinical and laboratory information should be available as part of the diagnostic and prognostic evaluation of acute leukemia samples to what types of testing should be performed routinely, with recommendations on where such testing should be performed and how the results should be reported. CONCLUSIONS - The guideline provides a framework for the multiple steps, including laboratory testing, in the evaluation of acute leukemia samples. Some aspects of the guideline, especially molecular genetic testing in acute leukemia, are rapidly changing with new supportive literature, which will require on-going updates for the guideline to remain relevant.
Collapse
|
23
|
Karlsson L, Forestier E, Hasle H, Jahnukainen K, Jónsson ÓG, Lausen B, Norén Nyström U, Palle J, Tierens A, Zeller B, Abrahamsson J. Outcome after intensive reinduction therapy and allogeneic stem cell transplant in paediatric relapsed acute myeloid leukaemia. Br J Haematol 2017; 178:592-602. [PMID: 28439893 DOI: 10.1111/bjh.14720] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 02/23/2017] [Indexed: 11/30/2022]
Abstract
Given that 30-40% of children with acute myeloid leukaemia (AML) relapse after primary therapy it is important to define prognostic factors and identify optimal therapy. From 1993 to 2012, 543 children from the Nordic countries were treated according to two consecutive protocols: 208 children relapsed. The influence of disease characteristics, first line treatment, relapse therapy and duration of first remission on outcome was analysed. Second complete remission (CR2) was achieved in 146 (70%) patients. Estimated 5-year overall survival (OS5y ) was 39 ± 4% for the whole group and 43 ± 4% for the 190 patients given re-induction therapy, of whom 76% received regimens that included fludarabine, cytarabine (FLA) ± anthracyclines, 18% received Nordic Society for Paediatric Haematology and Oncology (NOPHO) upfront blocks and 5% received other regimens. Late relapse ≥1 year from diagnosis, no allogeneic stem cell transplantation (SCT) in first remission and core binding factor AML were independent favourable prognostic factors for survival. For the 128 children (124 in CR2) that received SCT as consolidation therapy after relapse, OS5y was 61 ± 5%. Four of 19 children (21%) survived without receiving SCT as part of relapse therapy. Our data show that intensive re-induction followed by SCT can give cure rates of 40% in children with relapsed AML.
Collapse
Affiliation(s)
- Lene Karlsson
- Institution for Clinical Sciences, Department of Paediatrics, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Erik Forestier
- Department of Clinical Sciences, Paediatrics, Umea University, Umea, Sweden
| | - Henrik Hasle
- Department of Paediatrics, Aarhus University Hospital Skejby, Aarhus, Denmark
| | - Kirsi Jahnukainen
- Division of Haematology-Oncology and Stem Cell Transplantation, Children's Hospital, Helsinki, Finland
| | - Ólafur G Jónsson
- Children's Hospital, Landspitali University Hospital, Hringbraut, Reykjavik, Iceland
| | - Birgitte Lausen
- Department of Paediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | | | - Josefine Palle
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Anne Tierens
- Department of Pathobiology and Laboratory Medicine, University Health Network, Toronto General Hospital, Toronto, ON, Canada
| | - Bernward Zeller
- Department of Paediatrics, Oslo University Hospital, Oslo, Norway
| | - Jonas Abrahamsson
- Institution for Clinical Sciences, Department of Paediatrics, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| |
Collapse
|
24
|
Zhou H, Zheng C, Zhu X, Tang B, Tong J, Zhang X, Zhang L, Liu H, Sun Z. Decitabine prior to salvaged unrelated cord blood transplantation for refractory or relapsed childhood acute leukemia. Pediatr Transplant 2016; 20:1117-1124. [PMID: 27620713 DOI: 10.1111/petr.12805] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/17/2016] [Indexed: 01/24/2023]
Abstract
No clinical studies have investigated the role of decitabine as a part of the myeloablative conditioning regimen prior to UCBT for refractory or relapsed childhood AL in patients in NR status. The aim of this study was to identify the potential benefits of decitabine as a prior therapy before salvaged unrelated UCBT for refractory or relapsed childhood AL. Eight consecutive patients with childhood refractory/relapsed AL were enrolled in our study between 2013 and 2014. All patients were in NR status before the time of transplant and had features associated with poor outcomes, such as CNSL, MDS-AML, high WBC count at diagnosis, and hypodiploid status (FLT3+/ITD+). Additionally, all patients had one of the following disease statuses: PIF, multiple relapse, or early relapse. All transplants were performed with decitabine as part of the myeloablative conditioning regimen, which was decitabine+Flu/Bu/CY±BCNU or decitabine+Ara-c/BU/CY2±BCNU. A total of seven patients (7 of 8) achieved neutrophil engraftment and platelet engraftment, and one patient experienced primary graft failure. All eight patients (100%) developed PES at a median of 7 days. Three patients developed stage II-IV acute GVHD at a median of 18 days. Additionally, three patients developed chronic GVHD, but it was not extensive in any of those three patients. The median follow-up time after CBT was 19.9 months (range, 9.2-30.7 months). The estimated probability of OS was 75%. Two patients (2 of 8) experienced a testis relapse, and two patients (2 of 8) died. Our experience suggests that the additional application of decitabine as part of the myeloablative conditioning regimen prior to UCBT for refractory or relapsed childhood AL among patients who are not in remission is safe and might be an effective treatment option.
Collapse
Affiliation(s)
- Haixia Zhou
- Shandong University School of Medicine, Jinan, China
| | - Changcheng Zheng
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
| | - Xiaoyu Zhu
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
| | - Baolin Tang
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
| | - Juan Tong
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
| | - Xuhan Zhang
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
| | - Lei Zhang
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
| | - Huilan Liu
- Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
| | - Zimin Sun
- Shandong University School of Medicine, Jinan, China.,Department of Hematology, Anhui Provincial Hospital, Anhui Medical University, Hefei, China
| |
Collapse
|
25
|
Hossain MJ, Xie L. Sex disparity in childhood and young adult acute myeloid leukemia (AML) survival: Evidence from US population data. Cancer Epidemiol 2015; 39:892-900. [PMID: 26520618 DOI: 10.1016/j.canep.2015.10.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 09/29/2015] [Accepted: 10/14/2015] [Indexed: 11/25/2022]
Abstract
Sex variation has been persistently investigated in studies concerning acute myeloid leukemia (AML) survival outcomes but has not been fully explored among pediatric and young adult AML patients. We detected sex difference in the survival of AML patients diagnosed at ages 0-24 years and explored distinct effects of sex across subgroups of age at diagnosis, race-ethnicity and AML subtypes utilizing the United States Surveillance Epidemiology and End Results (SEER) population based dataset of 4865 patients diagnosed with AML between 1973 and 2012. Kaplan-Meier survival function, propensity scores and stratified Cox proportional hazards regression were used for data analyses. After controlling for other prognostic factors, females showed a significant survival advantage over their male counterparts, adjusted hazard ratio (aHR, 95% confidence interval (CI): 1.09, 1.00-1.18). Compared to females, male patients had substantially increased risk of mortality in the following subgroups of: ages 20-24 years at diagnosis (aHR1.30), Caucasian (1.14), acute promyelocytic leukemia (APL) (1.35), acute erythroid leukemia (AEL) (1.39), AML with inv(16)(p13.1q22) (2.57), AML with minimum differentiation (1.47); and had substantially decreased aHR in AML t(9;11)(p22;q23) (0.57) and AML with maturation (0.82). Overall, females demonstrated increased survival over males and this disparity was considerably large in patients ages 20-24 years at diagnosis, Caucasians, and in AML subtypes of AML inv(16), APL and AEL. In contrast, males with AML t(9;11)(p22;q23), AML with maturation and age at diagnosis of 10-14 years showed survival benefit. Further investigations are needed to detect the biological processes influencing the mechanisms of these interactions.
Collapse
Affiliation(s)
- Md Jobayer Hossain
- Biostatistics Core, Nemours Biomedical Research, A I duPont Hospital for Children, Wilmington, DE 19803, United States; Department of Applied Economics and Statistics, University of Delaware, Newark, DE 19716, United States.
| | - Li Xie
- Biostatistics Core, Nemours Biomedical Research, A I duPont Hospital for Children, Wilmington, DE 19803, United States
| |
Collapse
|
26
|
Quarello P, Fagioli F, Basso G, Putti MC, Berger M, Luciani M, Rizzari C, Menna G, Masetti R, Locatelli F. Outcome of children with acute myeloid leukaemia (AML) experiencing primary induction failure in the AIEOP AML 2002/01 clinical trial. Br J Haematol 2015. [PMID: 26223157 DOI: 10.1111/bjh.13611] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Paediatric patients with acute myeloid leukaemia (AML) who fail induction due to primary resistance to chemotherapy account for a significant proportion of cases and have a particularly dismal prognosis. We report the clinical and biological data, and final outcome of 48 paediatric patients with primary-resistant AML enrolled in the Associazione Italiana di Ematologia e Oncologia Pediatrica AML 2002/01 clinical trial. These patients had a significantly higher white blood cell count at diagnosis compared to other AML patients. Cytogenetic and molecular features did not differ between patients with primary induction failure and patients allocated to the high-risk group. For the whole patient population, the probability of overall survival, event-free survival (EFS) and disease-free survival (DFS) was 21·8% ± 6·2, 20·4% ± 5·9, and 49·5% ± 11·3, respectively. Twenty-eight (58%) patients received haematopoietic stem cell transplantation (HSCT); 3 were autologous and 25 were allogeneic. Patients who underwent HSCT had improved EFS (31·2% vs. 5%, P < 0·0001). Only one of the 20 patients who did not receive HSCT is alive and disease free. The 19 patients in complete remission at time of HSCT showed significantly better DFS than the 9 with active disease (46% vs. 0%, P = 0·02). This study represents one of the largest series with long-term follow up of paediatric AML patients with primary refractory disease. Children who underwent transplantation had an encouraging long-term outcome. Disease recurrence remains the major cause of treatment failure; a better understanding of the disease biology is desirable to develop more effective treatment strategies.
Collapse
Affiliation(s)
- Paola Quarello
- Paediatric Onco-Haematology, Stem Cell Transplantation and Cellular Therapy Division, Regina Margherita Children's Hospital, Torino, Italy
| | - Franca Fagioli
- Paediatric Onco-Haematology, Stem Cell Transplantation and Cellular Therapy Division, Regina Margherita Children's Hospital, Torino, Italy
| | - Giuseppe Basso
- Department of Woman and Child Health, Haemato-Oncology Division, University of Padova, Azienda Ospedale Padova, Padova, Italy
| | - Maria C Putti
- Department of Woman and Child Health, Haemato-Oncology Division, University of Padova, Azienda Ospedale Padova, Padova, Italy
| | - Massimo Berger
- Paediatric Onco-Haematology, Stem Cell Transplantation and Cellular Therapy Division, Regina Margherita Children's Hospital, Torino, Italy
| | - Matteo Luciani
- Department of Paediatric Haematology-Oncology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Bambino Gesù Children's Hospital, Roma, Italy
| | - Carmelo Rizzari
- Department of Paediatric Haematology, San Gerardo Hospital, Monza, Italy
| | - Giuseppe Menna
- Department of Paediatric Haemato-Oncology, Santobono-Pausilipon Hospital, Napoli, Italy
| | - Riccardo Masetti
- Paediatric Oncology and Haematology Unit "Lalla Seragnoli", Department of Paediatrics, University of Bologna Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - Franco Locatelli
- Department of Paediatric Haematology-Oncology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Bambino Gesù Children's Hospital, Roma, Italy.,University of Pavia, Pavia, Italy
| |
Collapse
|
27
|
Hossain MJ, Xie L, Caywood EH. Prognostic factors of childhood and adolescent acute myeloid leukemia (AML) survival: evidence from four decades of US population data. Cancer Epidemiol 2015; 39:720-6. [PMID: 26159683 DOI: 10.1016/j.canep.2015.06.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 06/08/2015] [Accepted: 06/28/2015] [Indexed: 01/23/2023]
Abstract
Growing insight into prognosis of pediatric acute myeloid leukemia (AML) survival has led to improved outcome over time and could be further enhanced through investigation using a large number of patients. To characterize the extent of the association of pediatric AML survival with its identified prognostic factors, we analyzed the United States population-based Surveillance Epidemiology and End Results (SEER) large dataset of 3442 pediatric AML patients diagnosed and followed between 1973 and 2011 using a Cox proportional hazards model stratified by year of diagnosis. Patients diagnosed between 10 and 19 years of age were at a higher risk of death compared to those diagnosed before age 10 (adjusted hazard ratio (aHR): 1.30, 95% confidence interval (CI): 1.17-1.44). African Americans (1.27, 1.09-1.48) and Hispanics (1.15, 1.00-1.32) had an elevated risk of mortality than Caucasians. Compared to the subtype acute promyelocytic leukemia, AML with minimal differentiation (2.44, 1.78-3.35); acute erythroid leukemia (2.34, 1.60-3.40); AML without maturation (1.87, 1.35-2.59); and most other AML subtypes had a higher risk of mortality, whereas AML with inv(16) had a substantially lower risk. Age at diagnosis, race-ethnicity, AML subtype, county level poverty and geographic region appeared as significant prognostic factors of pediatric AML survival in the US. Contrary to previous findings, the subtypes of AML with t(9;11)(p22;q23)MLLT3-MLL, AML without maturation and acute myelomonocytic leukemia emerged to be indicative of poor outcome.
Collapse
Affiliation(s)
- Md Jobayer Hossain
- Nemours Biomedical Research, A I duPont Hospital for Children, Wilmington, DE 19803, United States; Department of Applied Economics and Statistics, University of Delaware, Newark, DE 19716, United States.
| | - Li Xie
- Nemours Biomedical Research, A I duPont Hospital for Children, Wilmington, DE 19803, United States
| | - Emi H Caywood
- Department of Hematology/Oncology, A I duPont Hospital for Children, Wilmington, DE 19803, United States
| |
Collapse
|
28
|
Tang X, Chen J, Fang J, Sun X, Qin MQ, Li J, Zhu Y, Luan Z. Similar outcomes of allogeneic hematopoietic cell transplantation from unrelated donor and umbilical cord blood vs. sibling donor for pediatric acute myeloid leukemia: Multicenter experience in China. Pediatr Transplant 2015; 19:413-21. [PMID: 25903451 DOI: 10.1111/petr.12475] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/17/2015] [Indexed: 11/27/2022]
Abstract
In a multicenter study, we have conducted a retrospective study on 73 pediatric AML patients who were primary refractory or in greater than CR1 and investigated MSD (or MMSD) (n = 20), URD (n = 23), and UCB (n = 30) HCT between January 1998 and October 2009. The median day to neutrophil engraftment was similar in all groups. The median day to platelet engraftment was longer in the UCB group. The number of HLA mismatch was higher in the UCB group (p = 0.034); however, the cumulative incidence of grade III-IV aGVHD was not different among all groups (p = 0.125); furthermore, cGVHD was lower in the UCB group (p = 0.078). The risk of relapse did not differ among all groups (RR = 1.28, p = 0.125), but the patients of MSD (or MMSD) grafts had a trend of higher risk recurrence. Sixty-two patients survived with a median follow-up of 58.2 months. Five-yr LFS was 73.1%, 59.8%, and 59.6% for URD, UCB, and MSD (or MMDS), respectively (p = 0.426). Five-yr LFS in CR1 was 68.9%, with a significantly better result compared to 41.7% in CR2 (p = 0.025). Our comparisons suggest that pediatric AML patients receiving UCB had a higher early TRM, a lower cGVHD rate, and a similar long-term survival. The outcome of URD and UCB is comparable to that of a suitable sibling for pediatric AML.
Collapse
Affiliation(s)
- Xiangfeng Tang
- Department of Pediatrics, Navy General Hospital, Beijing, China
| | | | | | | | | | | | | | | |
Collapse
|
29
|
Bachas C, Schuurhuis GJ, Zwaan CM, van den Heuvel-Eibrink MM, den Boer ML, de Bont ESJM, Kwidama ZJ, Reinhardt D, Creutzig U, de Haas V, Kaspers GJL, Cloos J. Gene expression profiles associated with pediatric relapsed AML. PLoS One 2015; 10:e0121730. [PMID: 25849371 PMCID: PMC4388534 DOI: 10.1371/journal.pone.0121730] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 02/17/2015] [Indexed: 02/04/2023] Open
Abstract
Development of relapse remains a problem for further improvements in the survival of pediatric AML patients. While virtually all patients show a good response to initial treatment, more patients respond poorly when treated at relapse. The cellular characteristics of leukemic blast cells that allow survival of initial treatment, relapse development and subsequent resistance to salvage treatment remain largely elusive. Therefore, we studied if leukemic blasts at relapse biologically resemble their initial diagnosis counterparts. We performed microarray gene expression profiling on paired initial and relapse samples of 23 pediatric AML patients. In 11 out of 23 patients, gene expression profiles of initial and corresponding relapse samples end up in different clusters in unsupervised analysis, indicating altered gene expression profiles. In addition, shifts in type I/II mutational status were found in 5 of these 11 patients, while shifts were found in 3 of the remaining 12 patients. Although differentially expressed genes varied between patients, they were commonly related to hematopoietic differentiation, encompassed genes involved in chromatin remodeling and showed associations with similar transcription factors. The top five were CEBPA, GFI1, SATB1, KLF2 and TBP. In conclusion, the leukemic blasts at relapse are biologically different from their diagnosis counterparts. These differences may be exploited for further development of novel treatment strategies.
Collapse
Affiliation(s)
- Costa Bachas
- Department of Pediatric Oncology/Hematology, VU University Medical Center, Amsterdam, The Netherlands
- Department of Hematology, VU University Medical Center, Amsterdam, The Netherlands
| | | | - C. Michel Zwaan
- Department of Pediatric Oncology/Hematology, Erasmus MC/Sophia Children’s Hospital, Rotterdam, The Netherlands
| | | | - Monique L. den Boer
- Department of Pediatric Oncology/Hematology, Erasmus MC/Sophia Children’s Hospital, Rotterdam, The Netherlands
| | - Eveline S. J. M. de Bont
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Zinia J. Kwidama
- Department of Pediatric Oncology/Hematology, VU University Medical Center, Amsterdam, The Netherlands
| | - Dirk Reinhardt
- AML-BFM Study Group, Department of Pediatric Hematology/ Oncology, Medical School Hannover, Hannover, Germany
| | - Ursula Creutzig
- AML-BFM Study Group, Department of Pediatric Hematology/ Oncology, Medical School Hannover, Hannover, Germany
| | - Valérie de Haas
- Dutch Childhood Oncology Group (DCOG), The Hague, The Netherlands
| | - Gertjan J. L. Kaspers
- Department of Pediatric Oncology/Hematology, VU University Medical Center, Amsterdam, The Netherlands
- Dutch Childhood Oncology Group (DCOG), The Hague, The Netherlands
| | - Jacqueline Cloos
- Department of Pediatric Oncology/Hematology, VU University Medical Center, Amsterdam, The Netherlands
- Department of Hematology, VU University Medical Center, Amsterdam, The Netherlands
- * E-mail:
| |
Collapse
|
30
|
Nakayama H, Tabuchi K, Tawa A, Tsukimoto I, Tsuchida M, Morimoto A, Yabe H, Horibe K, Hanada R, Imaizumi M, Hayashi Y, Hamamoto K, Kobayashi R, Kudo K, Shimada A, Miyamura T, Moritake H, Tomizawa D, Taga T, Adachi S. Outcome of children with relapsed acute myeloid leukemia following initial therapy under the AML99 protocol. Int J Hematol 2014; 100:171-9. [PMID: 24961644 DOI: 10.1007/s12185-014-1616-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 06/10/2014] [Accepted: 06/10/2014] [Indexed: 01/08/2023]
Abstract
The outcomes of children with relapsed acute myeloid leukemia (AML) are known to be poor, but remain obscure. We retrospectively analyzed 71 patients who had relapsed following first-line treatment under the AML99 protocol. We investigated the time and site of recurrence, response to re-induction therapy, and performance of hematopoietic stem cell transplantation (HSCT) in relapsed cases, and performed a multivariate analysis to identify prognostic factors. The 5-year overall-survival (OS) rate after relapse was 37 %. Of 71 patients, three died without any anti-leukemic therapy and two underwent allogeneic HSCT. The remaining 66 patients received re-induction chemotherapy, and 33 (50 %) achieved second CR (CR2). Twenty-two of 25 (88 %) late relapse patients and 11 of 41 (27 %) early relapse patients achieved CR2 (P < 0.001). Twenty-nine CR2 cases and 35 non-CR2 cases underwent allogeneic HSCT. The 5-year OS rate was significantly higher in patients who underwent HSCT in CR2 than those in non-CR2 (66 vs. 17 %, P < 0.000001). Multivariate analysis indicated that early relapse (P < 0.05) and the positivity of the FMS-like tyrosine kinase 3--internal tandem duplication (P < 0.05) were adverse prognostic factors for survival. In conclusion, the etiology of relapsed pediatric AML needs to be elucidated and effective chemotherapy should be administered to obtain CR2.
Collapse
Affiliation(s)
- Hideki Nakayama
- Department of Pediatrics, National Hospital Organization, Fukuoka-Higashi Medical Center, Chidori 1-1-1, Koga, Fukuoka, 811-3195, Japan,
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Bachas C, Schuurhuis GJ, Reinhardt D, Creutzig U, Kwidama ZJ, Zwaan CM, van den Heuvel-Eibrink MM, De Bont ESJM, Elitzur S, Rizzari C, de Haas V, Zimmermann M, Cloos J, Kaspers GJL. Clinical relevance of molecular aberrations in paediatric acute myeloid leukaemia at first relapse. Br J Haematol 2014; 166:902-10. [PMID: 24962064 DOI: 10.1111/bjh.12989] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 05/05/2014] [Indexed: 01/17/2023]
Abstract
Outcome for relapsed paediatric acute myeloid leukaemia (AML) remains poor. Strong prognostic factors at first relapse are lacking, which hampers optimization of therapy. We assessed the frequency of molecular aberrations (FLT3, NRAS, KRAS, KIT, WT1 and NPM1 genes) at first relapse in a large set (n = 198) of relapsed non-French-American-British M3, non-Down syndrome AML patients that received similar relapse treatment. We correlated molecular aberrations with clinical and biological factors and studied their prognostic relevance. Hotspot mutations in the analysed genes were detected in 92 out of 198 patients (46·5%). In 72 of these 92 patients (78%), molecular aberrations were mutually exclusive for the currently analysed genes. FLT3-internal tandem repeat (ITD) (18% of total group) mutations were most frequent, followed by NRAS (10·2%), KRAS (8%), WT1 (8%), KIT (8%), NPM1 (5%) and FLT3-tyrosine kinase domain (3%) mutations. Presence of a WT1 aberration was an independent risk factor for second relapse (Hazard Ratio [HR] = 2·74, P = 0·013). In patients who achieved second complete remission (70·2%), WT1 and FLT3-ITD aberrations were independent risk factors for poor overall survival (HR = 2·32, P = 0·038 and HR = 1·89, P = 0·045 respectively). These data show that molecular aberrations at first relapse are of prognostic relevance and potentially useful for risk group stratification of paediatric relapsed AML and for identification of patients eligible for personalized treatment.
Collapse
Affiliation(s)
- Costa Bachas
- Department of Haematology, VU University Medical Centre, Amsterdam, The Netherlands; Department of Paediatric Oncology/Haematology, VU University Medical Centre, Amsterdam, The Netherlands
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Kaspers G. How I treat paediatric relapsed acute myeloid leukaemia. Br J Haematol 2014; 166:636-45. [PMID: 24837715 DOI: 10.1111/bjh.12947] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 04/10/2014] [Indexed: 11/28/2022]
Abstract
The prognosis of paediatric acute myeloid leukaemia (AML) has improved significantly over the recent decades, but still about one-third of patients relapse. These patients have a relatively poor prognosis, with a probability of long-term survival from relapse of about 35%. This can only be achieved with very intensive chemotherapy and, usually, allogeneic stem cell transplantation, leading to very significant toxicity and even treatment-related mortality. Major improvements in the treatment of paediatric relapsed AML thus are required still, and several possibilities are discussed. In case of a suspected relapse, a comprehensive diagnostic work-up has to be undertaken, because significant changes in the biological features of the AML cells may have occurred between initial diagnosis and relapse. This review discusses many practical issues that one encounters in the treatment of children with relapsed AML. It will also be of interest for those involved in translational research in AML.
Collapse
Affiliation(s)
- Gertjan Kaspers
- Paediatric Oncology/Haematology, VU University Medical Center, Amsterdam, The Netherlands
| |
Collapse
|
33
|
Creutzig U, Zimmermann M, Dworzak MN, Gibson B, Tamminga R, Abrahamsson J, Ha SY, Hasle H, Maschan A, Bertrand Y, Leverger G, von Neuhoff C, Razzouk B, Rizzari C, Smisek P, Smith OP, Stark B, Reinhardt D, Kaspers GL. The prognostic significance of early treatment response in pediatric relapsed acute myeloid leukemia: results of the international study Relapsed AML 2001/01. Haematologica 2014; 99:1472-8. [PMID: 24763401 DOI: 10.3324/haematol.2014.104182] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The prognostic significance of early response to treatment has not been reported in relapsed pediatric acute myeloid leukemia. In order to identify an early and easily applicable prognostic factor allowing subsequent treatment modifications, we assessed leukemic blast counts in the bone marrow by morphology on days 15 and 28 after first reinduction in 338 patients of the international Relapsed-AML2001/01 trial. Both day 15 and day 28 status was classified as good (≤20% leukemic blasts) in 77% of patients. The correlation between day 15 and 28 blast percentages was significant, but not strong (Spearman correlation coefficient = 0.49, P<0.001). Survival probability decreased in a stepwise fashion along with rising blast counts at day 28. Patients with bone marrow blast counts at this time-point of ≤5%, 6-10%, 11-20% and >20% had 4-year probabilities of survival of 52%±3% versus 36%±10% versus 21%±9% versus 14%±4%, respectively, P<0.0001; this trend was not seen for day 15 results. Multivariate analysis showed that early treatment response at day 28 had the strongest prognostic significance, superseding even time to relapse (< or ≥12 months). In conclusion, an early response to treatment, measured on day 28, is a strong and independent prognostic factor potentially useful for treatment stratification in pediatric relapsed acute myeloid leukemia. This study was registered with ISRCTN code: 94206677.
Collapse
Affiliation(s)
- Ursula Creutzig
- BFM-AML Group, Hannover, c/o Pediatric Hematology/Oncology, Hannover Medical High School, Germany
| | - Martin Zimmermann
- BFM-AML Group, Hannover, c/o Pediatric Hematology/Oncology, Hannover Medical High School, Germany
| | - Michael N Dworzak
- BFM-AML Group, St. Anna Children's Hospital and Children's Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Austria
| | - Brenda Gibson
- UK NCRI Childhood Leukaemia Group, Department of Paediatric Haematology, Royal Hospital for Sick Children, Glasgow, Scotland, UK
| | - Rienk Tamminga
- Pediatric Oncology/Hematology, Beatrix Children's Hospital/UMCG, Groningen, The Netherlands Dutch Childhood Oncology Group, The Hague, The Netherlands
| | - Jonas Abrahamsson
- NOPHO, Department of Pediatrics, Queen Silvia's Children's Hospital, Göteborg, Sweden
| | - Shau-Yin Ha
- Hong Kong Paediatric Haematology & Oncology Study Group, c/o Department of Paediatrics & Adolescent Medicine, Queen Mary Hospital, Hong Kong, China
| | - Henrik Hasle
- NOPHO; Department of Pediatrics, Aarhus University Hospital Skejby, Denmark
| | - Alexey Maschan
- Research Center for Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Yves Bertrand
- FRALLE/CLCG, c/o Institut d'Hématologie et d'Oncologie Pédiatrique, Lyon, France
| | - Guy Leverger
- FRALLE/CLCG; c/o Unité d'Onco-Hématologie Pédiatrique, Hôpital d'Enfants Armand Trousseau, Paris, France
| | - Christine von Neuhoff
- BFM-AML Group, Hannover, c/o Pediatric Hematology/Oncology, Hannover Medical High School, Germany
| | - Bassem Razzouk
- St. Jude's Children Research Hospital, Memphis, TN, USA, c/o Children's Center For Cancer and Blood Diseases, Peyton Manning Children's Hospital at St. Vincent, Indianapolis, IN, USA
| | - Carmelo Rizzari
- AIEOP, c/o Department of Pediatrics, Hospital S. Gerardo, Monza, Italy
| | - Petr Smisek
- CPH, c/o Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine and University Hospital Motol, Charles University Prague, Czech Republic
| | - Owen P Smith
- UK CCLG; c/o Department of Haematology & Oncology, Our Lady's Children's Hospital, Dublin, Ireland
| | - Batia Stark
- Center of Pediatric Hematology/Oncology, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
| | - Dirk Reinhardt
- BFM-AML Group, Hannover, c/o Pediatric Hematology/Oncology, Hannover Medical High School, Germany
| | - Gertjan L Kaspers
- Pediatric Oncology/Hematology, VU University Medical Center, Amsterdam, The Netherlands Dutch Childhood Oncology Group, The Hague, The Netherlands
| |
Collapse
|
34
|
Abstract
Survival rates for children with acute myeloid leukemia (AML) exceed 60 % when modern, intensified chemotherapeutic regimens and enhanced supportive care measures are employed. Despite well-recognized improvements in outcomes, primary refractory or relapsed pediatric AML yields significant morbidity and mortality, and improved understanding of this obstinate population along with refined treatment protocols are urgently needed. Although a significant number of patients with refractory or relapsed disease will achieve remission, long-term survival rates remain poor, and efforts to identify therapies which will improve OS are under continuous investigation. The current fundamental goal of such investigation is the achievement of as complete a remission as possible without dose-limiting toxicities, and the progression to hematopoietic stem cell transplantation thereafter. In this review the scope of the problem of relapsed and refractory AML as well as current and emerging chemotherapy options will be discussed.
Collapse
|
35
|
Outcome of refractory and relapsed acute myeloid leukemia in children treated during 2005-2011 - experience of the Polish Pediatric Leukemia/Lymphoma Study Group (PPLLSG). Contemp Oncol (Pozn) 2014; 18:48-53. [PMID: 24876821 PMCID: PMC4037997 DOI: 10.5114/wo.2014.40436] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Revised: 10/02/2013] [Accepted: 10/16/2013] [Indexed: 11/21/2022] Open
Abstract
Aim of the study Recent studies showed relatively better outcome for children with refractory (refAML) and relapsed acute myeloid leukemia (relAML). Treatment of these patients has not been unified within Polish Pediatric Leukemia/Lymphoma Study Group (PPLLSG) so far. The goal of this study is to analyze the results of this therapy performed between 2005–2011. Material and methods The outcome data of 16 patients with refAML and 62 with relAML were analyzed retrospectively. Reinduction was usually based on idarubicine, fludarabine and cytarabine with allogenic hematopoietic stem cell transplant (alloHSCT) in 5 refAML and 30 relAML children. Results Seventy seven percent relAML patients entered second complete remission (CR2). Five-year OS and disease-free survival (DFS) were estimated at 16% and 30%. The outcome for patients after alloHSCT in CR2 (63%) was better than that of those not transplanted (36%) with 5-year OS of 34% vs. 2-year of 7% and 5-year DFS of 40% vs. 12.5%. Second complete remission achievement and alloHSCT were the most significant predictors of better prognosis (p = 0.000 and p = 0.024). The outcome of refAML children was significantly worse than relAML with first remission (CR1) rate of 33%, OS and DFS of 25% at 3 years and 53% at 2 years, respectively. All survivors of refAML were treated with alloHSCT after CR1. Conclusions The uniform reinduction regimen of the documented efficacy and subsequent alloHSCT in remission is needed to improve the outcome for ref/relAML children treated within PPLLSG. The focus should be on the future risk-directed both front and second line AML therapy.
Collapse
|
36
|
Buaboonnam J, Cao X, Pauley JL, Pui CH, Ribeiro RC, Rubnitz JE, Inaba H. Sequential administration of methotrexate and asparaginase in relapsed or refractory pediatric acute myeloid leukemia. Pediatr Blood Cancer 2013; 60:1161-4. [PMID: 23335430 PMCID: PMC4005561 DOI: 10.1002/pbc.24470] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 12/18/2012] [Indexed: 11/08/2022]
Abstract
BACKGROUND The efficacy of combination chemotherapy with methotrexate (MTX) and asparaginase is not well known in relapsed and refractory acute leukemia after contemporary therapy. PROCEDURE A retrospective study of pediatric patients with relapsed or refractory acute myeloid leukemia (AML) who received MTX and asparaginase as a salvage therapy at St. Jude Children Research Hospital was performed. MTX was given intravenously followed by a dose of asparaginase intramuscularly or intravenously 24 hours later. The chemotherapy cycle was repeated every 7-10 days. Response, survival, and toxicities were evaluated. RESULTS Fifteen patients, median age 10.5 years (range, 1.1-18.5 years), were treated. Median number of previous therapeutic regimens was three (range, 1-4). Six patients responded to treatment (three had morphologic complete remission with incomplete blood count recovery, two had partial remission, and one had stable disease for 16 months), and four are still alive. Three of six responders had monoblastic leukemia, and also developed tumor lysis syndrome. The 1- and 2-year overall survival rates are 35.6% and 17.8%, respectively. The most common adverse event was transient elevation of transaminases (nine patients). Two patients developed pancreatitis. Episodes of febrile neutropenia were rare (two patients), and most courses (75 out of 93 total courses) were given in an outpatient setting. CONCLUSIONS Combination chemotherapy with MTX and asparaginase appears to be an effective salvage therapy and well tolerated in patients with relapsed or refractory childhood AML, even in those heavily pretreated with contemporary frontline or salvage therapy.
Collapse
Affiliation(s)
- Jassada Buaboonnam
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Xueyuan Cao
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Jennifer L. Pauley
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Ching-Hon Pui
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee,Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Raul C. Ribeiro
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee,Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Jeffrey E. Rubnitz
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee,Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Hiroto Inaba
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee,Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee
| |
Collapse
|
37
|
Zhang WP, Yang D, Song XM, Ni X, Chen J, Chen L, Yang JM, Zhou H, Cheng H, Liu BH, Li HM, Wang JM. Allogeneic Peripheral Blood Stem Cell Transplantation is a Promising and Safe Choice for the Treatment of Refractory/Relapsed Acute Myelogenous Leukemia, Even with a Higher Leukemia Burden. Biol Blood Marrow Transplant 2013; 19:653-60. [DOI: 10.1016/j.bbmt.2013.01.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 01/17/2013] [Indexed: 10/27/2022]
|
38
|
Abstract
Isolated central nervous system (CNS) relapse in acute myeloid leukemia (AML) rarely occurs later than 2 years after remission. We present a child diagnosed with AML (FAB M5) without CNS involvement at diagnosis who was treated with chemotherapy and consolidated with autologous hematopoietic stem cell transplantation. He was in complete remission for >6 years until he had an isolated CNS relapse. He was treated with only intrathecal chemotherapy and achieved a second complete remission, but relapsed in the bone marrow 5 months after the CNS relapse. Treatment of late isolated CNS relapse of AML is discussed.
Collapse
|
39
|
Kaspers GJL, Zimmermann M, Reinhardt D, Gibson BES, Tamminga RYJ, Aleinikova O, Armendariz H, Dworzak M, Ha SY, Hasle H, Hovi L, Maschan A, Bertrand Y, Leverger GG, Razzouk BI, Rizzari C, Smisek P, Smith O, Stark B, Creutzig U. Improved outcome in pediatric relapsed acute myeloid leukemia: results of a randomized trial on liposomal daunorubicin by the International BFM Study Group. J Clin Oncol 2013; 31:599-607. [PMID: 23319696 DOI: 10.1200/jco.2012.43.7384] [Citation(s) in RCA: 153] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
PURPOSE In pediatric relapsed acute myeloid leukemia (AML), optimal reinduction therapy is unknown. Studies suggest that liposomal daunorubicin (DNX; DaunoXome; Galen, Craigavon, United Kingdom) is effective and less cardiotoxic, which is important in this setting. These considerations led to a randomized phase III study by the International Berlin-Frankfurt-Münster Study Group. PATIENTS AND METHODS Patients with relapsed or primary refractory non-French-American-British type M3 AML who were younger than 21 years of age were eligible. Patients were randomly assigned to fludarabine, cytarabine, and granulocyte colony-stimulating factor (FLAG) or to FLAG plus DNX in the first reinduction course. The primary end point was status of the bone marrow (BM) sampled shortly before the second course of chemotherapy (the day 28 BM). Data are presented according to intention-to-treat for all 394 randomly assigned patients (median follow-up, 4.0 years). RESULTS The complete remission (CR) rate was 64%, and the 4-year probability of survival (pOS) was 38% (SE, 3%). The day 28 BM status (available in 359 patients) was good (≤ 20% leukemic blasts) in 80% of patients randomly assigned to FLAG/DNX and 70% for patients randomly assigned to FLAG (P = .04). Concerning secondary end points, the CR rate was 69% with FLAG/DNX and 59% with FLAG (P = .07), but overall survival was similar. However, core-binding factor (CBF) AML treated with FLAG/DNX resulted in pOS of 82% versus 58% with FLAG (P = .04). Grade 3 to 4 toxicity was essentially similar in both groups. CONCLUSION DNX added to FLAG improves early treatment response in pediatric relapsed AML. Overall long-term survival was similar, but CBF-AML showed an improved survival with FLAG/DNX. International collaboration proved feasible and resulted in the best outcome for pediatric relapsed AML reported thus far.
Collapse
Affiliation(s)
- Gertjan J L Kaspers
- Pediatric Oncology/Hematology, VU University Medical Center, De Boelelaan 1117, NL-1081HV Amsterdam, the Netherlands.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Lee JW, Jang PS, Chung NG, Cho B, Kim HK. Treatment of children with acute myeloid leukaemia who relapsed after allogeneic haematopoietic stem cell transplantation. Br J Haematol 2012; 160:80-6. [DOI: 10.1111/bjh.12074] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Accepted: 08/27/2012] [Indexed: 11/30/2022]
Affiliation(s)
- Jae Wook Lee
- Division of Haematology and Oncology, Department of Paediatrics; The Catholic University of Korea; Seoul; Korea
| | - Pil-Sang Jang
- Division of Haematology and Oncology, Department of Paediatrics; The Catholic University of Korea; Seoul; Korea
| | - Nack-Gyun Chung
- Division of Haematology and Oncology, Department of Paediatrics; The Catholic University of Korea; Seoul; Korea
| | - Bin Cho
- Division of Haematology and Oncology, Department of Paediatrics; The Catholic University of Korea; Seoul; Korea
| | - Hack-Ki Kim
- Division of Haematology and Oncology, Department of Paediatrics; The Catholic University of Korea; Seoul; Korea
| |
Collapse
|
41
|
Abstract
Although acute myeloid leukaemia (AML) has long been recognized for its morphological and cytogenetic heterogeneity, recent high-resolution genomic profiling has demonstrated a complexity even greater than previously imagined. This complexity can be seen in the number and diversity of genetic alterations, epigenetic modifications, and characteristics of the leukaemic stem cells. The broad range of abnormalities across different AML subtypes suggests that improvements in clinical outcome will require the development of targeted therapies for each subtype of disease and the design of novel clinical trials to test these strategies. It is highly unlikely that further gains in long-term survival rates will be possible by mere intensification of conventional chemotherapy. In this review, we summarize recent studies that provide new insight into the genetics and biology of AML, discuss risk stratification and therapy for this disease, and profile some of the therapeutic agents currently under investigation.
Collapse
Affiliation(s)
- Jeffrey E Rubnitz
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
| | | |
Collapse
|
42
|
Clinical characteristics and outcome of refractory/relapsed myeloid leukemia in children with Down syndrome. Blood 2012; 120:1810-5. [PMID: 22776818 DOI: 10.1182/blood-2012-03-414755] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Myeloid leukemia in Down syndrome (ML-DS) is associated with good response to chemotherapy and favorable prognosis. Because little research has been focused on refractory/relapsed (R/R) cases, we conducted a retrospective analysis for R/R ML-DS. Among ML-DS patients diagnosed between 2000 and 2010 in Japan, 26 relapsed (25 in the BM and 1 in the skin), and 3 refractory patients were enrolled. The male/female ratio was 18/11. The median age at initial diagnosis of ML-DS was 2 years, and the median time to relapse was 8.6 months. Each patient initially had been treated with ML-DS-specific protocols. Thirteen of the 26 patients achieved complete remission with various kinds of reinduction chemotherapies; 2 of 8 survived without further recurrence after receiving allogeneic hematopoietic stem cell transplantation, and 4 of 5 maintained complete remissions with chemotherapy alone. Treatment failures mostly were associated with disease progression rather than treatment-related toxicities. The 3-year OS rate was 25.9% ± 8.5%. A longer duration from initial diagnosis to relapse was a significant favorable prognostic factor (P < .0001). We conclude that clinical outcome for patients with R/R ML-DS generally are unfavorable, even in those receiving hematopoietic stem cell transplantation. Novel methods to identify poor prognostic factors for ML-DS are necessary.
Collapse
|
43
|
The role of minor subpopulations within the leukemic blast compartment of AML patients at initial diagnosis in the development of relapse. Leukemia 2012; 26:1313-20. [PMID: 22289983 DOI: 10.1038/leu.2011.383] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The majority of pediatric and younger adult (<60 years) AML patients achieve complete remission. However, 30-40% of patients relapse and display a dismal outcome. Recently we described a frequent instability of type I/II mutations between diagnosis and relapse. Here, we explored the hypothesis that these mutational shifts originate from clonal selection during treatment/disease progression. Subfractions of blasts from initial diagnosis samples were cell sorted and their mutational profiles were compared with those of the corresponding relapse samples of 7 CD34(+) AML patients. At diagnosis, subfractions of the CD45(dim)CD34(+)CD38(dim/-) compartment were heterogeneous in the distribution of mutations, when compared to the whole CD45(dim)CD34(+) blast compartment in 6 out of 7 patients. Moreover, within CD45(dim)CD34(+)CD38(dim/-) fraction of initial samples of 5 of these 6 AML patients, we found evidence for the presence of a minor, initially undetected subpopulation with a specific mutational profile that dominated the bulk of leukemic blasts at relapse. In conclusion, our findings lend support to the AML oligoclonality concept and provide molecular evidence for selection and expansion of a chemo-resistant subpopulation towards development of relapse. These results imply that early detection of pre-existing drug-resistant leukemic subpopulations is crucial for relapse prevention by proper timing of targeted treatment.
Collapse
|
44
|
Abstract
Megakaryopoiesis is the process by which bone marrow progenitor cells develop into mature megakaryocytes (MKs), which in turn produce platelets required for normal haemostasis. Over the past decade, molecular mechanisms that contribute to MK development and differentiation have begun to be elucidated. In this review, we provide an overview of megakaryopoiesis and summarise the latest developments in this field. Specially, we focus on polyploidisation, a unique form of the cell cycle that allows MKs to increase their DNA content, and the genes that regulate this process. In addition, because MKs have an important role in the pathogenesis of acute megakaryocytic leukaemia and a subset of myeloproliferative neoplasms, including essential thrombocythemia and primary myelofibrosis, we discuss the biology and genetics of these disorders. We anticipate that an increased understanding of normal MK differentiation will provide new insights into novel therapeutic approaches that will directly benefit patients.
Collapse
|
45
|
Campbell PK, Zong Y, Yang S, Zhou S, Rubnitz JE, Sorrentino BP. Identification of a novel, tissue-specific ABCG2 promoter expressed in pediatric acute megakaryoblastic leukemia. Leuk Res 2011; 35:1321-9. [PMID: 21640380 PMCID: PMC3163718 DOI: 10.1016/j.leukres.2011.05.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Revised: 04/26/2011] [Accepted: 05/06/2011] [Indexed: 01/16/2023]
Abstract
ABCG2 encodes a transporter protein that is associated with multidrug-resistant phenotypes in many cancers, including acute myeloid leukemia (AML); high levels of expression are generally associated with a poor prognosis. To better understand how expression of ABCG2 is controlled in pediatric AML, we performed a detailed analysis of the ABCG2 transcript isoforms from a variety of tissue sources, including 85 pediatric AML samples. These studies revealed a complex 5' untranslated region (UTR) with 6 novel exons and multiple splice variants. Samples from children with acute megakaryoblastic leukemia (AML FAB-M7) not associated with Down syndrome showed uniformly higher levels of ABCG2 transcripts than samples from children with other AML subtypes. A novel 5' UTR identified 90kb upstream of the exon 2 translation initiation site was expressed only in M7 AML subtypes. An associated upstream promoter fragment was shown to be selectively expressed in megakaryoblastic leukemia cells but not in human epithelial cell lines. These findings identify a new tissue-specific ABCG2 promoter that is selectively expressed in pediatric M7 AML. We also show a relatively high incidence of ABCG2 mRNA expression in non-Down associated M7 AML, which may contribute to the relatively poor prognosis of the M7 AML subtype.
Collapse
MESH Headings
- 5' Flanking Region
- ATP Binding Cassette Transporter, Subfamily G, Member 2
- ATP-Binding Cassette Transporters/genetics
- Adolescent
- Alternative Splicing
- Base Sequence
- Blotting, Southern
- Child
- Child, Preschool
- Exons
- Gene Expression Regulation, Neoplastic
- Humans
- Infant
- Infant, Newborn
- K562 Cells
- Lentivirus
- Leukemia, Megakaryoblastic, Acute/diagnosis
- Leukemia, Megakaryoblastic, Acute/genetics
- Leukemia, Megakaryoblastic, Acute/pathology
- Molecular Sequence Data
- Neoplasm Proteins/genetics
- Organ Specificity
- Pediatrics
- Prognosis
- Protein Isoforms/genetics
- RNA Stability
- Reverse Transcriptase Polymerase Chain Reaction
- Transcription, Genetic
- Transfection
- Young Adult
Collapse
Affiliation(s)
- Patrick K. Campbell
- Division of Leukemia/Lymphoma, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Yang Zong
- Division of Experimental Hematology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Shengping Yang
- Department of Biostatistics, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Sheng Zhou
- Division of Experimental Hematology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Jeffrey E. Rubnitz
- Division of Leukemia/Lymphoma, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Brian P. Sorrentino
- Division of Experimental Hematology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| |
Collapse
|
46
|
Zhai XW, Cheng FWT, Lee V, Leung WK, Ng MHL, Tsang KS, Shing MK, Li CK. Improved survival outcome of childhood acute myeloid leukemia with intensified chemotherapy in Chinese children. Pediatr Hematol Oncol 2011; 28:269-78. [PMID: 21345081 DOI: 10.3109/08880018.2010.533249] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
With the use of intensive chemotherapy and hematopoietic stem cell transplantation (HSCT), the prognosis of childhood acute myeloid leukemia (AML) improved over the last 2 decades. Survival data of Chinese pediatric patients were seldom reported. The authors adopted modified UK Medical Research Council (MRC) AML protocols for treatment of childhood AML since 1994. From 1994 to 2008, the outcomes of Chinese AML patients were studied. Sixty-eight patients were studied. The median age at diagnosis was 9.9 years. Twenty-five patients (36.8%) had favorable cytogenetic karyotypes, including t(15;17), t(8;21) and inv(16). Complete remission (CR) rate was 91.2%. The relapse rate was 29.4%. For non-M3 patients, the 5-year overall survival (pOS) was 64% ± 7% and event-free survival (pEFS) was 53% ± 7%. For those non-good-risk patients who achieved CR, there were no significant differences in outcomes between patients who received HSCT in CR1 and those received chemotherapy alone (5-year pOS 80% ± 13% and 69% ± 9%, P = .52), 5-year pEFS 69% ± 15% and 55% ± 10%, P = .40). The pOS of the 20 relapsed patients was 29% ± 11%. Sixteen patients with t(8;21) and inv(16) had similar outcome with those without favorable cytogenetics (pOS 66% ± 12% versus 65% ± 7%, P = .39; pEFS 60% ± 11% versus 54% ± 8%, P = .45). Patients who achieved CR after 2 or more courses of chemotherapy and presenting white blood cell count (WBC) ≥ 100 × 10(9)/L had poorer outcome (pOS 40% versus 80%P < .01; 43% versus 70%, P = .02, respectively). Intensified chemotherapy improved outcome of Chinese AML children. CR after first course of chemotherapy and WBC at diagnosis were important prognostic factors.
Collapse
Affiliation(s)
- Xiao Wen Zhai
- Department of Pediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | | | | | | | | | | | | | | |
Collapse
|
47
|
Molgaard-Hansen L, Möttönen M, Glosli H, Jónmundsson GK, Abrahamsson J, Hasle H. Treatment-related deaths in second complete remission in childhood acute myeloid leukaemia. Br J Haematol 2011; 152:623-30. [DOI: 10.1111/j.1365-2141.2010.08554.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
48
|
Johnston DL, Alonzo TA, Gerbing RB, Lange BJ, Woods WG. The presence of central nervous system disease at diagnosis in pediatric acute myeloid leukemia does not affect survival: a Children's Oncology Group study. Pediatr Blood Cancer 2010; 55:414-20. [PMID: 20658610 PMCID: PMC2990693 DOI: 10.1002/pbc.22511] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND The presence of central nervous system (CNS) disease in pediatric acute myeloid leukemia (AML) is often thought to confer a worse prognosis. This study examined the outcome of children with AML who had CNS disease at diagnosis. METHODS Patients enrolled on Children's Cancer Group protocols 2861, 2891, 2941, and 2961 being treated for de novo AML were classified for the presence of CNS disease at diagnosis as CNS1 (<5 WBC in the CSF without blasts), CNS2 (<5 WBC in the CSF with blasts), or CNS3 (> or =5 WBC in the CSF with blasts). CNS disease at diagnosis was then analyzed regarding patient characteristics and outcome. RESULTS There was an incidence of CNS disease (i.e., CNS3 status) of 11% in the 1,459 patients analyzed in this study. The risk factors found are young age, high white cell count, hepatomegaly or splenomegaly at diagnosis, M4 subtype, chromosome 16 abnormalities, and hyperdiploid cytogenetics. There were no significant differences in overall survival, event free survival, or remission rates between the groups; however, a significant difference was seen between the CNS1 and CNS3 groups in disease free survival and isolated CNS relapse risk. CONCLUSIONS Patients with CNS disease at diagnosis have similar survival to those without CNS disease, although they have an increased incidence of isolated CNS relapse. Patients with CNS disease at diagnosis may warrant more aggressive CNS directed therapy.
Collapse
Affiliation(s)
- Donna L. Johnston
- Division of Hematology/Oncology, Children’s Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Todd A. Alonzo
- Department of Preventive Medicine, University of Southern California, Los Angeles, CA,Children’s Oncology Group, Arcadia, CA
| | | | - Beverly J. Lange
- Pediatric Oncology, Children's Hospital of Philadelphia, Philadelphia, PA
| | - William G. Woods
- Aflac Cancer Center and Blood Disorders Service, Children's Healthcare of Atlanta, Emory University, Atlanta, GA
| |
Collapse
|
49
|
Gorman MF, Ji L, Ko RH, Barnette P, Bostrom B, Hutchinson R, Raetz E, Seibel NL, Twist CJ, Eckroth E, Sposto R, Gaynon PS, Loh ML. Outcome for children treated for relapsed or refractory acute myelogenous leukemia (rAML): a Therapeutic Advances in Childhood Leukemia (TACL) Consortium study. Pediatr Blood Cancer 2010; 55:421-9. [PMID: 20658611 DOI: 10.1002/pbc.22612] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Current event-free survival (EFS) rates for children with newly diagnosed acute myeloid leukemia (AML) approach 50-60%. We hypothesize that further improvements in survival are unlikely to be achieved with traditional approaches such as dose intensive chemotherapy or hematopoietic stem cell transplants, since these therapies have been rigorously explored in clinical trials. This report highlights efforts to assess the response rates and survival outcomes after first or greater relapse in children with AML. PROCEDURE We performed a retrospective cohort review of pediatric patients with relapsed and refractory AML (rAML) previously treated at TACL institutions between the years of 1995 and 2004. Data regarding disease characteristics at diagnosis and relapse, treatment response, and survival was collected on 99 patients and 164 medullary relapses or treatment failures. RESULTS The complete response (CR) rate following the second therapeutic attempt was 56 +/- 5%. CR rates following a third treatment attempt was 25 +/- 8% while 17 +/- 7% achieved CR following the fourth through sixth treatments. The 5-year disease-free survival in patients achieving CR following a second therapeutic attempt was 43 +/- 7%. The 5-year EFS and overall survival (OS) rates for all patients receiving a second treatment attempt was 24 +/- 5% and 29 +/- 5%, respectively. CONCLUSIONS This CR rate following a second therapeutic attempt and OS rate in patients with rAML is consistent with the literature. There are limited published data of CR rates for subsequent relapses. Our data can serve as a historical benchmark to compare outcomes of future therapeutic trials in rAML against traditional chemotherapy regimens.
Collapse
Affiliation(s)
- Matthew F Gorman
- Therapeutic Advances in Childhood Leukemia Consortium, USC-CHLA Institute for Pediatric Clinical Research, Los Angeles, California, USA
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Severe Eosinophilia in an infant with congenital acute myeloid leukemia with t(3;4;6)(q26;q25;q21): a case report. J Pediatr Hematol Oncol 2010; 32:497-500. [PMID: 20562653 DOI: 10.1097/mph.0b013e3181e40e1b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We report a case of acute myeloid leukemia with morphologic features of M7 according to the FAB (French-American-British) classification and severe eosinophilia in the peripheral blood and bone marrow at diagnosis. We consider it as congenital leukemia, as the symptoms started in the first month of life of the affected child. This case of leukemia is characterized by t(3;4;6)(q26;q25;q21) cytogenetic abnormality. The blasts in flow cytometry analysis expressed markers of megakaryocytic lineage along with expression of myeloperoxidase in 30% of them. This type of acute myelogenous leukemia with severe eosinophilia can be considered as a distinct clinicopathologic entity.
Collapse
|