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Gundersen ET, Førde JL, Tislevoll BS, Leitch C, Barratt G, Gjertsen BT, Herfindal L. Repurposing chlorpromazine for anti-leukaemic therapy by nanoparticle encapsulation. Int J Pharm 2021; 612:121296. [PMID: 34793932 DOI: 10.1016/j.ijpharm.2021.121296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 10/26/2021] [Accepted: 11/11/2021] [Indexed: 12/12/2022]
Abstract
Treatment of acute myeloid leukaemia (AML) relies on decades-old drugs, and while recent years have seen some breakthroughs, AML is still characterised by poor prognosis and survival rate. Drug repurposing can expedite the preclinical development of new therapies, and by nanocarrier encapsulation, the number of potentially viable drug candidates can be further expanded. The anti-psychotic drug chlorpromazine (CPZ) has been identified as a candidate for repurposing for AML therapy. Nanoencapsulation may improve the suitability of CPZ for the treatment of AML by reducing its effect on the central nervous system. Using the emulsion-evaporation technique, we have developed PEGylated PLGA nanoparticles loaded with CPZ for AML therapy. The nanoparticles were characterised to be between 150 and 300 nm by DLS, of spherical morphology by TEM, with a drug loading of at least 6.0% (w/w). After an initial burst release of adsorbed drug, the remaining 80% of the drug was retained in the PLGA nanoparticles for at least 24 h. The CPZ-loaded nanoparticles had equal cytotoxic potential towards AML cells to free CPZ, but acted more slowly, in line with the protracted drug release. Crucially, nanoparticles injected intravenously into zebrafish larvae did not accumulate in the brain, and nanoencapsulation also prevented CPZ from crossing an artificial membrane model. This demonstrates that the purpose for nanoencapsulation of CPZ is fulfilled, namely avoiding effects on the central nervous system while retaining the anti-AML activity of the drug.
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Affiliation(s)
- Edvin Tang Gundersen
- Centre for Pharmacy, Department of Clinical Science, University of Bergen, Bergen, Norway; Hospital Pharmacies Enterprise, Western Norway, Bergen, Norway
| | - Jan-Lukas Førde
- Centre for Pharmacy, Department of Clinical Science, University of Bergen, Bergen, Norway; Department of Internal Medicine, Haukeland University Hospital, Bergen, Norway
| | - Benedicte Sjo Tislevoll
- Centre of Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Calum Leitch
- Centre of Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Gillian Barratt
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, Châtenay-Malabry, France
| | - Bjørn Tore Gjertsen
- Centre of Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Lars Herfindal
- Centre for Pharmacy, Department of Clinical Science, University of Bergen, Bergen, Norway.
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Goel H, Rahul E, Gupta I, Chopra A, Ranjan A, Gupta AK, Meena JP, Viswanathan GK, Bakhshi S, Misra A, Hussain S, Kumar R, Singh A, Rath GK, Sharma A, Mittan S, Tanwar P. Molecular and genomic landscapes in secondary & therapy related acute myeloid leukemia. AMERICAN JOURNAL OF BLOOD RESEARCH 2021; 11:472-497. [PMID: 34824881 PMCID: PMC8610791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 09/04/2021] [Indexed: 06/13/2023]
Abstract
Acute myeloid leukemia (AML) is a complex, aggressive myeloid neoplasm characterized by frequent somatic mutations that influence different functional categories' genes, resulting in maturational arrest and clonal expansion. AML can arise de novo (dn-AML) or can be secondary AML (s-AML) refers to a leukemic process which may arise from an antecedent hematologic disorder (AHD-AML), mostly from a myelodysplastic syndrome (MDS) or myeloproliferative neoplasm (MPN) or can be the result of an antecedent cytotoxic chemotherapy or radiation therapy (therapy-related AML, t-AML). Clinical and biological features in secondary and therapy-related AML are distinct from de novo AML. Secondary and therapy-related AML occurs mainly in the elderly population and responds worse to therapy with higher relapse rates due to resistance to cytotoxic chemotherapy. Over the last decade, advances in molecular genetics have disclosed the sub-clonal architecture of secondary and therapy-related AML. Recent investigations have revealed that cytogenetic abnormalities and underlying genetic aberrations (mutations) are likely to be significant factors dictating prognosis and critical impacts on treatment outcome. Secondary and therapy-related AML have a poorer outcome with adverse cytogenetic abnormalities and higher recurrences of unfavorable mutations compared to de novo AML. In this review, we present an overview of the clinical features of secondary and therapy-related AML and address the function of genetic mutations implicated in the pathogenesis of secondary leukemia. Detailed knowledge of the pathogenetic mechanisms gives an overview of new prognostic markers, including targetable mutations that will presumably lead to the designing and developing novel molecular targeted therapies for secondary and therapy-related AML. Despite significant advances in knowing the genetic aspect of secondary and therapy-related AML, its influence on the disease's pathophysiology, standard treatment prospects have not significantly evolved during the past three decades. Thus, we conclude this review by summarizing the modern and developing treatment strategies in secondary and therapy-related acute myeloid leukemia.
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Affiliation(s)
- Harsh Goel
- Laboratory Oncology Unit, Dr.B.R.A. Institute Rotary Cancer Hospital All India Institute of Medical SciencesNew Delhi 110029, India
| | - Ekta Rahul
- Laboratory Oncology Unit, Dr.B.R.A. Institute Rotary Cancer Hospital All India Institute of Medical SciencesNew Delhi 110029, India
| | - Ishan Gupta
- All India Institute of Medical SciencesNew Delhi 110029, India
| | - Anita Chopra
- Laboratory Oncology Unit, Dr.B.R.A. Institute Rotary Cancer Hospital All India Institute of Medical SciencesNew Delhi 110029, India
| | - Amar Ranjan
- Laboratory Oncology Unit, Dr.B.R.A. Institute Rotary Cancer Hospital All India Institute of Medical SciencesNew Delhi 110029, India
| | - Aditya Kumar Gupta
- Division of Pediatric Oncology, Department of Pediatrics, All India Institute of Medical Sciences New DelhiNew Delhi 110029, India
| | - Jagdish Prasad Meena
- Division of Pediatric Oncology, Department of Pediatrics, All India Institute of Medical Sciences New DelhiNew Delhi 110029, India
| | - Ganesh Kumar Viswanathan
- Department of Hematology, All India Institute of Medical Sciences New DelhiNew Delhi 110029, India
| | - Sameer Bakhshi
- Department of Medical Oncology, Dr.B.R.A. Institute Rotary Cancer Hospital All India Institute of Medical Sciences New DelhiNew Delhi 110029, India
| | - Aroonima Misra
- National Institute of Pathology, ICMRNew Delhi 110029, India
| | - Showket Hussain
- Division Of Molecular Oncology, National Institute of Cancer Prevention & Research I-7, Sector-39Noida 201301, India
| | - Ritesh Kumar
- Department of Radiation Oncology, Rudgers Cancer Institute of New JerseyNJ 07103, United States
| | - Archana Singh
- Department of Pathology, College of Medical Sciences, Rajasthan University of Health SciencesJaipur 302033, India
| | - GK Rath
- Department of Radiotherapy, Dr.B.R.A. Institute Rotary Cancer Hospital All India Institute of Medical Sciences New DelhiNew Delhi 110029, India
| | - Ashok Sharma
- Department of Biochemistry, All India Institute of Medical Sciences New DelhiNew Delhi 110029, India
| | - Sandeep Mittan
- Department of Cardiology, Ichan School of Medicine, Mount Sinai Hospital1468 Madison Avenue, New York 10028, United States
| | - Pranay Tanwar
- Laboratory Oncology Unit, Dr.B.R.A. Institute Rotary Cancer Hospital All India Institute of Medical SciencesNew Delhi 110029, India
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Horibata S, Alyateem G, DeStefano CB, Gottesman MM. The Evolving AML Genomic Landscape: Therapeutic Implications. Curr Cancer Drug Targets 2021; 20:532-544. [PMID: 32329691 DOI: 10.2174/1568009620666200424150321] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 01/24/2020] [Accepted: 03/29/2020] [Indexed: 12/18/2022]
Abstract
Improved understanding of the genomic and molecular landscape of acute myeloid leukemia (AML) has resulted in a significant evolution of our understanding of AML biology and allows refined prognostication for those receiving standard combination chemotherapy induction. This dramatic increase in knowledge preceded, and was somewhat responsible for, at least some of eight new FDA drug approvals for AML. This review discusses the impact of genomics on clinical care of AML patients and highlights newly approved FDA drugs. Despite these recent clinical advances, however, the outcome for most patients diagnosed with AML remains dire. Thus, we describe here some of the challenges identified with treating AML including off-target toxicity, drug transporters, clonal heterogeneity, and adaptive resistance, and some of the most promising opportunities for improved therapy.
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Affiliation(s)
- Sachi Horibata
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, United States
| | - George Alyateem
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, United States
| | - Christin B DeStefano
- Department of Hematology and Oncology, David Grant USAF Medical Center, Fairfield, CA, 93425, United States
| | - Michael M Gottesman
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, United States
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Hosono N, Ookura M, Araie H, Morita M, Itoh K, Matsuda Y, Yamauchi T. Clinical outcomes of gemtuzumab ozogamicin for relapsed acute myeloid leukemia: single-institution experience. Int J Hematol 2020; 113:362-369. [PMID: 33219461 DOI: 10.1007/s12185-020-03023-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/17/2020] [Accepted: 10/05/2020] [Indexed: 11/26/2022]
Abstract
We retrospectively evaluated the clinical efficacy and toxicity of gemtuzumab ozogamicin (GO) in patients with relapsed acute myeloid leukemia (AML). Nineteen patients (median 70 years) received GO (9 mg/m2, days 1 and 15) as salvage therapy in our institution between 2006 and 2017. The primary endpoint was the response rate. The secondary endpoint was the occurrence of adverse events. Thirteen patients had de novo AML, and 6 patients had secondary AML. Most of the patients had received salvage treatments more than once prior to GO. Six patients responded to the treatment (31.6%) with 3 complete remissions (15.8%). Five patients had stable disease, and 8 patients did not show any response. GO was more efficacious among the patients with fewer numbers of prior salvage treatments. CD33 positivity of leukemic cells was higher in responders than in nonresponders. Peripheral WT1 mRNA levels mostly decreased over time in the responders. The adverse event most commonly seen was febrile neutropenia (84%). No patient presented with veno-occlusive disease. Three patients died by day 30 (mortality rate 15.8%), one due to acute respiratory distress syndrome and the other two due to sepsis. GO remains an effective salvage treatment.
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Affiliation(s)
- Naoko Hosono
- Department of Hematology and Oncology, University of Fukui, 23-3, Shimoaizuki, Fukui, Matsuoka, 910-1193, Japan.
| | - Miyuki Ookura
- Department of Hematology and Oncology, University of Fukui, 23-3, Shimoaizuki, Fukui, Matsuoka, 910-1193, Japan
| | - Hiroaki Araie
- Department of Hematology and Oncology, University of Fukui, 23-3, Shimoaizuki, Fukui, Matsuoka, 910-1193, Japan
| | - Mihoko Morita
- Department of Hematology and Oncology, University of Fukui, 23-3, Shimoaizuki, Fukui, Matsuoka, 910-1193, Japan
| | - Kazuhiro Itoh
- Department of Hematology and Oncology, University of Fukui, 23-3, Shimoaizuki, Fukui, Matsuoka, 910-1193, Japan
| | - Yasufumi Matsuda
- Department of Hematology and Oncology, University of Fukui, 23-3, Shimoaizuki, Fukui, Matsuoka, 910-1193, Japan
| | - Takahiro Yamauchi
- Department of Hematology and Oncology, University of Fukui, 23-3, Shimoaizuki, Fukui, Matsuoka, 910-1193, Japan
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Park S, Min GJ, Park SS, Yahng SA, Jeon YW, Shin SH, Yoon JH, Lee SE, Cho BS, Eom KS, Kim YJ, Lee S, Min CK, Cho SG, Kim DW, Lee JW, Kim HJ. Comparison of Myeloablative (CyTBI, BuCy) versus Reduced-Intensity (FluBu2TBI400) Peripheral Blood Stem Cell Transplantation in Acute Myeloid Leukemia Patients with Pretransplant Low WT1 Expression. Biol Blood Marrow Transplant 2020; 26:2018-2026. [PMID: 32659434 DOI: 10.1016/j.bbmt.2020.07.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 10/23/2022]
Abstract
Relapse is a major concern with reduced-intensity conditioning. We analyzed 257 patients with acute myeloid leukemia (AML) who received allogeneic stem cell transplantation (SCT) and fulfilled the following criteria: intermediate- or poor-risk disease by National Comprehensive Cancer Network guidelines (2017, version 3), in first complete remission (CR1) at SCT, received either myeloablative conditioning (MAC; busulfan plus cyclophosphamide or cyclophosphamide plus total body irradiation) or reduced-intensity conditioning (RIC; FluBu2TBI400) peripheral blood SCT from 8/8 matched sibling or unrelated donor, and having bone marrow Wilms tumor gene 1 (WT1) expression results before transplant. We and other groups serially published a predictive value for pretransplant WT1 expression in patients with AML to identify patients at higher risk of relapse. Among the total 257 patients, 191 (74.3%) and 66 (25.7%) patients received MAC and RIC transplants, respectively. WT1 ≥250 copies/104ABL was defined as WT1high. WT1high before SCT was found to be an independent prognostic factor for inferior overall survival (OS), disease-free survival (DFS), and higher cumulative incidence of relapse (CIR). There were 201 patients with WT1 low expression based upon pretransplant analysis. There was no significant difference in OS, DFS, CIR, and nonrelapse mortality between MAC and RIC patients. To conclude, post-transplant survival or relapse was not different by conditioning intensity in AML CR1 patients whose WT1 level was below 250 copies per 104ABL at transplantation.
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Affiliation(s)
- Silvia Park
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Gi June Min
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung Soo Park
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seung-Ah Yahng
- Department of Hematology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea
| | - Young-Woo Jeon
- Department of Hematology, Yeoido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seung-Hwan Shin
- Department of Hematology, Catholic Hematology Hospital, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae-Ho Yoon
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung-Eun Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Byung Sik Cho
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ki-Seong Eom
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yoo-Jin Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seok Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chang-Ki Min
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seok-Goo Cho
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Dong-Wook Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong Wook Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hee-Je Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea.
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Popescu B, Sheela S, Thompson J, Grasmeder S, Intrater T, DeStefano CB, Hourigan CS, Lai C. Timed sequential salvage chemotherapy for relapsed or refractory acute myeloid leukemia. Clin Hematol Int 2020; 2:27-31. [PMID: 32190831 PMCID: PMC7079712 DOI: 10.2991/chi.d.191128.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 11/27/2019] [Indexed: 01/12/2023] Open
Abstract
Therapy for those with relapsed or refractory acute myeloid leukemia is suboptimal. Studies have suggested that timed sequential salvage combination cytotoxic chemotherapy may have particular utility for that indication. We report here a series of ten such adult patients treated sequentially at a single center with EMA (cytarabine 500 mg/m2/day as continuous infusion on days 1-3 and days 8-10, mitoxantrone 12 mg/m2/day on days 1-3, and etoposide 200 mg/m2/day as continuous infusion on days 8-10). The overall complete remission rate was 40% (including 3 of 4 of those with relapsed disease) but use of this regimen was associated with prolonged cytopenia and a high rate of infectious adverse events. Even with the availability of modern infectious prophylaxis and therapies, the EMA regimen is likely best reserved for those with relapsed disease treated with curative intent prior to an allogeneic hematopoietic cell transplant.
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Affiliation(s)
- Bogdan Popescu
- Laboratory of Myeloid Malignancies, Hematology Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Room 10CRC 5-5130, 10 Center Drive, Bethesda, Maryland 20a814-1476, USA
| | - Sheenu Sheela
- Laboratory of Myeloid Malignancies, Hematology Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Room 10CRC 5-5130, 10 Center Drive, Bethesda, Maryland 20a814-1476, USA
| | - Julie Thompson
- Laboratory of Myeloid Malignancies, Hematology Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Room 10CRC 5-5130, 10 Center Drive, Bethesda, Maryland 20a814-1476, USA
| | - Sophia Grasmeder
- Laboratory of Myeloid Malignancies, Hematology Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Room 10CRC 5-5130, 10 Center Drive, Bethesda, Maryland 20a814-1476, USA
| | - Therese Intrater
- Laboratory of Myeloid Malignancies, Hematology Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Room 10CRC 5-5130, 10 Center Drive, Bethesda, Maryland 20a814-1476, USA
| | - Christin B. DeStefano
- Laboratory of Myeloid Malignancies, Hematology Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Room 10CRC 5-5130, 10 Center Drive, Bethesda, Maryland 20a814-1476, USA
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Illangeswaran RSS, Das S, Paul DZ, Mathews V, Balasubramanian P. A personalized approach to acute myeloid leukemia therapy: current options. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2019; 12:167-179. [PMID: 31447578 PMCID: PMC6684879 DOI: 10.2147/pgpm.s168267] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 07/10/2019] [Indexed: 12/11/2022]
Abstract
Therapeutic options for acute myeloid leukemia (AML) have remained unchanged for nearly the past 5 decades, with cytarabine and anthracyclines and use of hypomethylating agents for less intensive therapy. Implementation of large-scale genomic studies in the past decade has unraveled the genetic landscape and molecular etiology of AML. The approval of several novel drugs for targeted therapy, including midostaurin, enasidenib, ivosidenib, gemtuzumab–ozogamicin, and CPX351 by the US Food and Drug Administration has widened the treatment options for clinicians treating AML. This review focuses on some of these novel therapies and other promising agents under development, along with key clinical trial findings in AML.
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Affiliation(s)
| | - Saswati Das
- Department of Haematology, Christian Medical College, Vellore, India
| | | | - Vikram Mathews
- Department of Haematology, Christian Medical College, Vellore, India
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Shallis RM, Wang R, Davidoff A, Ma X, Zeidan AM. Epidemiology of acute myeloid leukemia: Recent progress and enduring challenges. Blood Rev 2019; 36:70-87. [PMID: 31101526 DOI: 10.1016/j.blre.2019.04.005] [Citation(s) in RCA: 402] [Impact Index Per Article: 80.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 04/06/2019] [Accepted: 04/26/2019] [Indexed: 01/08/2023]
Abstract
Acute myeloid leukemia (AML) is a malignant disorder of the bone marrow which is characterized by the clonal expansion and differentiation arrest of myeloid progenitor cells. The age-adjusted incidence of AML is 4.3 per 100,000 annually in the United States (US). Incidence increases with age with a median age at diagnosis of 68 years in the US. The etiology of AML is heterogeneous. In some patients, prior exposure to therapeutic, occupational or environmental DNA-damaging agents is implicated, but most cases of AML remain without a clear etiology. AML is the most common form of acute leukemia in adults and has the shortest survival (5-year survival = 24%). Curative therapies, including intensive chemotherapy and allogeneic stem cell transplantation, are generally applicable to a minority of patients who are younger and fit, while most older individuals exhibit poor prognosis and survival. Differences in patient outcomes are influenced by disease characteristics, access to care including active therapies and supportive care, and other factors. After many years without therapeutic advances, several new therapies have been approved and are expected to impact patient outcomes, especially for older patients and those with refractory disease.
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Affiliation(s)
- Rory M Shallis
- Section of Hematology, Department of Internal Medicine, Yale University School of Medicine, New Haven, USA
| | - Rong Wang
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale University, New Haven, USA; Department of Chronic Disease Epidemiology, School of Public Health, Yale University, New Haven, USA
| | - Amy Davidoff
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale University, New Haven, USA; Department of Health Policy and Management, School of Public Health, Yale University, New Haven, USA
| | - Xiaomei Ma
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale University, New Haven, USA; Department of Chronic Disease Epidemiology, School of Public Health, Yale University, New Haven, USA
| | - Amer M Zeidan
- Section of Hematology, Department of Internal Medicine, Yale University School of Medicine, New Haven, USA; Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale University, New Haven, USA.
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9
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Galkin M, Jonas BA. Enasidenib in the treatment of relapsed/refractory acute myeloid leukemia: an evidence-based review of its place in therapy. CORE EVIDENCE 2019; 14:3-17. [PMID: 31118877 PMCID: PMC6503332 DOI: 10.2147/ce.s172912] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 03/31/2019] [Indexed: 12/19/2022]
Abstract
Introduction: Acute myeloid leukemia (AML) remains a disease with high mortality, especially for older patients and those with relapsed/refractory (R/R) disease. With recent advances in molecular testing, targeting particular leukemogenic mutations such as those occurring in isocitrate dehydrogenase (IDH) became possible. Enasidenib is a new small-molecule inhibitor of mutant isocitrate dehydrogenase-2 (IDH2). Aim: The objective of this article is to review the evidence for the use of enasidenib in R/R AML, as well as to outline future directions of enasidenib therapy. Evidence Review: Enasidenib was approved in August 2017, after a successful Phase I/II trial showing an overall response rate (ORR) of 40.3% in R/R disease, with 19.3% of patients achieving complete remission (CR). Enrollees in the trial were mostly older adults. The most prominent toxicities were hyperbilirubinemia and IDH-differentiation syndrome (IDH-DS), though the drug was generally well tolerated and the maximum tolerated dose was not reached. A Phase III trial is currently ongoing. Conclusion: Enasidenib provides a new therapeutic option for patients with R/R AML. Further studies are ongoing to ascertain its role in combination with other agents and newly diagnosed disease.
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Affiliation(s)
- Maria Galkin
- Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, CA, USA
| | - Brian A Jonas
- Department of Internal Medicine, Division of Hematology and Oncology, University of California Davis School of Medicine, Sacramento, CA, USA
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