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Buhl Rasmussen AS, Andersen CL, Weimann A, Yang T, Tron C, Gandemer V, Dalhoff K, Rank CU, Schmiegelow K. Therapeutic drug monitoring of imatinib - how far are we in the leukemia setting? Expert Rev Clin Pharmacol 2024; 17:225-234. [PMID: 38345044 DOI: 10.1080/17512433.2024.2312256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 01/26/2024] [Indexed: 02/21/2024]
Abstract
INTRODUCTION Tyrosine kinase inhibitors (TKIs) have revolutionized survival rates of chronic myeloid leukemia (CML) and Philadelphia chromosome positive (Ph+) acute lymphoblastic leukemia (ALL) and replaced hematopoietic stem cell transplantation (hSCT) as the key treatment option for these patients. More recently, the so-called Philadelphia chromosome-like (Ph-like) ALL has similarly benefitted from TKIs. However, many patients shift from the first generation TKI, imatinib, due to treatment-related toxicities or lack of treatment efficacy. A more personalized approach to TKI treatment could counteract these challenges and potentially be more cost-effective. Therapeutic drug monitoring (TDM) has led to higher response rates and less treatment-related toxicity in adult CML but is rarely used in ALL or in childhood CML. AREAS COVERED This review summarizes different antileukemic treatment indications for TKIs with focus on imatinib and its pharmacokinetic/-dynamic properties as well as opportunities and pitfalls of TDM for imatinib treatment in relation to pharmacogenetics and co-medication for pediatric and adult Ph+/Ph-like leukemias. EXPERT OPINION TDM of imatinib adds value to standard monitoring of ABL-class leukemia by uncovering non-adherence and potentially mitigating adverse effects. Clinically implementable pharmacokinetic/-dynamic models adjusted for relevant pharmacogenetics could improve individual dosing. Prospective trials of TDM-based treatments, including both children and adults, are needed.
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Affiliation(s)
- Anna Sofie Buhl Rasmussen
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | | | - Allan Weimann
- Pediatric Oncology Research Laboratory, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Tianwu Yang
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Camille Tron
- Department of Biological Pharmacology, Rennes University Hospital, Rennes, France
| | - Virginie Gandemer
- Department of Pediatric Hematology and Oncology, Rennes University Hospital, Rennes, France
| | - Kim Dalhoff
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg, Copenhagen, Denmark
- Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Cecilie Utke Rank
- Department of Hematology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark
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Skipper MT, Rank CU, Jarvis KB, Lynggaard LS, Andrés‐Jensen L, Quist‐Paulsen P, Semaskeviciene R, Hallböök H, Waitiovaara‐Kautto U, Ranta S, Trakymiene S, Abrahamsson J, Huttunen P, Albertsen BK, Schmiegelow K, Tuckuviene R. Cerebral sinovenous thrombosis and asparaginase re‐exposure in patients aged 1–45 years with acute lymphoblastic leukaemia: A NOPHO ALL2008 study. eJHaem 2022; 3:754-763. [PMID: 36051071 PMCID: PMC9422014 DOI: 10.1002/jha2.484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/06/2022] [Accepted: 05/11/2022] [Indexed: 11/22/2022]
Abstract
Cerebral sinovenous thrombosis (CSVT) is a serious complication during asparaginase therapy in patients with acute lymphoblastic leukaemia (ALL). We identified 46 patients with CSVT among 2651 patients (1‒45 years) treated according to the Nordic Society of Paediatric Haematology and Oncology (NOPHO) ALL2008 protocol between 2008 and 2018. CSVT cases were prospectively registered in the NOPHO database with retrospective updates. We examined the frequency of asparaginase re‐exposure after CSVT, potential factors associated with asparaginase truncation, and sequelae after CSVT. This work was supported by the Danish Cancer Society and the Danish Childhood Cancer Foundation. The 2.5‐year cumulative incidence of CSVT was 1.9% (95% confidence interval 1.4%–2.5%). The majority of patients (74%, n = 31) were re‐exposed to asparaginase (with low‐molecular‐weight heparin coverage), one of whom had a second CSVT, without neurological sequelae. Patients re‐exposed to asparaginase were earlier in ALL treatment and lacked more asparaginase doses than non‐re‐exposed patients at CSVT diagnosis (median 50 vs. 81 days, p = 0.03; mean 11.2 vs. 8.4 asparaginase doses, p = 0.04). No other examined factors had an impact on asparaginase re‐exposure. At the last follow‐up (median 4.5 years after CSVT), 61% of patients had normal neurological status, and 57% had complete recanalisation of CSVT, with no significant difference between patients re‐exposed and non‐re‐exposed to asparaginase. Our results indicate that re‐exposure to asparaginase is safe after CSVT during anticoagulation.
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Affiliation(s)
- Mette Tiedemann Skipper
- Department of Paediatrics and Adolescent Medicine Aarhus University Hospital Aarhus Denmark
- Department of Clinical Medicine Aarhus University Aarhus Denmark
| | - Cecilie Utke Rank
- Department of Paediatrics and Adolescent Medicine Rigshospitalet University Hospital Copenhagen Denmark
| | | | - Line Stensig Lynggaard
- Department of Paediatrics and Adolescent Medicine Aarhus University Hospital Aarhus Denmark
| | - Liv Andrés‐Jensen
- Department of Paediatrics and Adolescent Medicine Rigshospitalet University Hospital Copenhagen Denmark
| | | | - Ruta Semaskeviciene
- Oncology and Transfusion Medicine Centre Vilnius University Hospital Santaros Klinikos Vilnius Lithuania
| | - Helene Hallböök
- Department of Medical Sciences Uppsala University Uppsala Sweden
| | - Ulla Waitiovaara‐Kautto
- Department of Haematology Comprehensive Cancer Centre Helsinki University Hospital and University of Helsinki Helsinki Finland
| | - Susanna Ranta
- Astrid Lindgren Children's Hospital Karolinska University Hospital and Childhood Cancer Research Unit Department of Women's and Children's Health Karolinska Institute Stockholm Sweden
| | - Sonata Trakymiene
- Clinic of Children's Diseases Faculty of Medicine Vilnius University Vilnius University Hospital Santaros Klinikos Vilnius Lithuania
| | - Jonas Abrahamsson
- Department of Paediatrics Institution of Clinical Science Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Pasi Huttunen
- Department of Paediatric Haematology Oncology and SCT New Children's Hospital Helsinki University Hospital Helsinki Finland
| | - Birgitte Klug Albertsen
- Department of Paediatrics and Adolescent Medicine Aarhus University Hospital Aarhus Denmark
- Department of Clinical Medicine Aarhus University Aarhus Denmark
| | - Kjeld Schmiegelow
- Department of Paediatrics and Adolescent Medicine Rigshospitalet University Hospital Copenhagen Denmark
| | - Ruta Tuckuviene
- Department of Paediatrics and Adolescent Medicine Rigshospitalet University Hospital Copenhagen Denmark
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Gjærde LK, Rank CU, Andersen MK, Jakobsen LH, Sengeløv H, Olesen G, Kornblit B, Marquart H, Friis LS, Petersen SL, Andersen NS, Nielsen OJ, Toft N, Schjødt I. Improved survival after allogeneic transplantation for acute lymphoblastic leukemia in adults: a Danish population-based study. Leuk Lymphoma 2021; 63:416-425. [PMID: 34672245 DOI: 10.1080/10428194.2021.1992620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
We investigated trends of survival in a population-based cohort study of all 181 adults who received HCT for ALL in Denmark between 2000-2019. Patients had a median (min-max) age of 36 (18-74) years at HCT and were followed for a median of eight years. Overall survival (OS) improved over time with an estimated 2-year OS of 49% (CI 27-66%) in year 2000 versus 77% (CI 59-88%) in year 2019. More patients achieved cure over time (OR for cure per year 1.07, CI 1.00-1.15), while the rate of death in non-cured patients remained stable (HR of excess mortality per year 0.99, CI 0.93-1.06). Relapse decreased over time (HR 0.92 per year, CI 0.87-0.98), whereas non-relapse mortality did not change notably (HR 0.98 per year, CI 0.93-1.04). In conclusion, survival after HCT in adults with ALL has improved over the past two decades, primarily due to more patients achieving cure.
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Affiliation(s)
- Lars Klingen Gjærde
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Cecilie Utke Rank
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Mette Klarskov Andersen
- Department of Clinical Genetics, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Lasse Hjort Jakobsen
- Department of Hematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Henrik Sengeløv
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Gitte Olesen
- Department of Hematology, Aarhus University Hospital, Aarhus, Denmark
| | - Brian Kornblit
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Hanne Marquart
- Department of Clinical Immunology, Rigshospitalet, Copenhagen, Denmark
| | - Lone Smidstrup Friis
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Søren Lykke Petersen
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Ove Juul Nielsen
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Nina Toft
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Ida Schjødt
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
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Kristjánsdóttir ER, Toksvang LN, Schmiegelow K, Rank CU. Prevalence of non-adherence and non-compliance during maintenance therapy in adults with acute lymphoblastic leukemia and their associations with survival. Eur J Haematol 2021; 108:109-117. [PMID: 34562333 DOI: 10.1111/ejh.13711] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Explore patient adherence and physician compliance to protocol guidelines during maintenance therapy, including the association with survival in adults with acute lymphoblastic leukemia (ALL). METHODS Blood counts, aminotransferase levels and prescribed 6-mercaptopurine (6MP)/methotrexate (MTX) doses were compared with the protocol guidelines to assess compliance. Non-adherence to the prescribed medication was confirmed in patients with unmeasurable 6MP metabolite levels and suspected in patients with low 6MP metabolites concurrent with aminotransferase and white blood cell count within normal ranges, while potential intermittent non-adherence was defined by >1.9 fold fluctuating 6MP metabolites. RESULTS Physicians' non-compliance with insufficient dose increments of 6MP/MTX despite white blood cell counts above the target level comprised a median of 20.1% (interquartile range 9.7-39.3%) of the observed time in maintenance therapy, yet no association to relapse was found (P = .17). Non-adherence to 6MP was confirmed in 9.8% (5 of 51 patients), suspected in an additional 9.8% (5 of 51 patients), and intermittent non-adherence was suspected in 52.6% (20 of 38 patients). CONCLUSION Although no association between non-compliance and leukemic relapse was found, likely due to lack of power, increased attention to this phase of ALL therapy is indicated.
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Affiliation(s)
- Elsa Rán Kristjánsdóttir
- Pediatric Oncology Research Laboratory, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Linea Natalie Toksvang
- Pediatric Oncology Research Laboratory, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Kjeld Schmiegelow
- Pediatric Oncology Research Laboratory, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Institute of Clinical Medicine, The Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Cecilie Utke Rank
- Pediatric Oncology Research Laboratory, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Hematology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Schmiegelow K, Rank CU, Stock W, Dworkin E, van der Sluis I. SOHO State of the Art Updates and Next Questions: Management of Asparaginase Toxicity in Adolescents and Young Adults with Acute Lymphoblastic Leukemia. Clin Lymphoma Myeloma Leuk 2021; 21:725-733. [PMID: 34511319 DOI: 10.1016/j.clml.2021.07.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 01/23/2023]
Abstract
A wider use of L-asparaginase in the treatment of children with acute lymphoblastic leukemia has improved cure rates during recent decades and hence led to introduction of pediatric-inspired treatment protocols for adolescents and young adults. In parallel, a range of burdensome, often severe and occasionally life-threatening toxicities have become frequent, including hypersensitivity, hepatotoxicity, hypertriglyceridemia, thromboembolism, pancreatitis, and osteonecrosis. This often leads to truncation of asparaginase therapy, which at least in the pediatric population has been clearly associated with a higher risk of leukemic relapse. Many of the asparaginase induced toxicities are far more common in older patients, but since their relapse rate is still unsatisfactory, the decision to discontinue asparaginase therapy should balance the risk of toxicity with continued asparaginase therapy against the risk of relapse in the individual patient. The underlying mechanisms of most of the asparaginase induced side effects are still unclear. In this review we address the individual toxicities, known risk factors, and their clinical management.
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Affiliation(s)
- Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet Copenhagen University Hospital, 2100 Copenhagen, Denmark; Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark.
| | - Cecilie Utke Rank
- Department of Hematology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Wendy Stock
- Department of Medicine, University of Chicago Medicine and Comprehensive Cancer Center, Chicago, IL
| | - Emily Dworkin
- Department of Medicine, University of Chicago Medicine and Comprehensive Cancer Center, Chicago, IL
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Larsen RH, Utke Rank C, Grell K, Nørgaard Møller L, Malthe Overgaard U, Kampmann P, Nersting J, Degn M, Nygaard Nielsen S, Holst H, Klug Albertsen B, Skov Wehner P, Thude Callesen M, Kanerva J, Leth Frandsen T, Als-Nielsen B, Lyngsie Hjalgrim L, Schmiegelow K. Increments in DNA-thioguanine level during thiopurine enhanced maintenance therapy of acute lymphoblastic leukemia. Haematologica 2021; 106:2824-2833. [PMID: 34047177 PMCID: PMC8561300 DOI: 10.3324/haematol.2020.278166] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Indexed: 12/01/2022] Open
Abstract
Maintenance therapy containing methotrexate and 6-mercapto - purine is essential to cure acute lymphoblastic leukemia (ALL). Cytotoxicity is elicited by incorporation of thioguanine nucleotides into DNA (DNA-TG), and higher leukocyte DNA-TG is associated with increased relapse-free survival. As 6-thioguanine provides 6- fold higher cytosolic levels of thioguanine nucleotides than does 6- mercapto purine, we added low-dose 6-thioguanine to methotrexate/6- mercapto purine maintenance therapy to explore if this combination results in significantly higher DNA-TG. The target population of the “Thiopurine Enhanced ALL Maintenance therapy” (TEAM) study was 30 patients with non-high-risk ALL, aged 1-45 years on methotrexate/6-mercaptopurine maintenance therapy receiving no other systemic chemotherapy. Incremental doses of 6-thioguanine were added to methotrexate/6-mercaptopurine maintenance therapy (starting 6-thioguanine dose: 2.5 mg/m2/day, maximum: 12.5 mg/m2/day). The primary endpoint was DNA-TG increments. Thirty-four patients were included, and 30 patients completed maintenance therapy according to the TEAM strategy. Of these 30 patients, 26 (87%) tolerated 10.0-12.5 mg/m2/day as the maximum 6-thioguanine dose. TEAM resulted in significantly higher DNA-TG levels compared to those in both TEAM patients before their inclusion in TEAM (on average 251 fmol/mg DNA higher [95% confidence interval: 160-341; P<0.0001]), and with historical patients receiving standard methotrexate/6-mercapto - purine maintenance therapy (on average 272 fmol/mg DNA higher [95% confidence interval: 147-398; P<0.0001]). TEAM did not increase myelotoxicity or hepatotoxicity. In conclusion, TEAM is an innovative and feasible approach to improve maintenance therapy and results in higher DNA-TG levels without inducing additional toxicity. It may therefore be an effective strategy to reduce the risk of ALL relapse through increased DNA-TG. This will be tested in a randomized ALLTogether-1 substudy.
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Affiliation(s)
- Rikke Hebo Larsen
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen
| | - Cecilie Utke Rank
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen; Department of Hematology, Rigshospitalet, University of Copenhagen, Copenhagen
| | - Kathrine Grell
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen; Section of Biostatistics, Department of Public Health, University of Copenhagen, Copenhagen
| | - Lisbeth Nørgaard Møller
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen
| | | | - Peter Kampmann
- Department of Hematology, Rigshospitalet, University of Copenhagen, Copenhagen
| | - Jacob Nersting
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen
| | - Matilda Degn
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen
| | - Stine Nygaard Nielsen
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen
| | - Helle Holst
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen
| | - Birgitte Klug Albertsen
- Department of Pediatrics and Adolescent Medicine, Aarhus University, Aarhus; Department of Clinical Medicine, Aarhus University, Health, Aarhus
| | - Peder Skov Wehner
- Department of Pediatric Hematology and Oncology, H.C. Andersen Children's Hospital, Odense University Hospital, Odense
| | - Michael Thude Callesen
- Department of Pediatric Hematology and Oncology, H.C. Andersen Children's Hospital, Odense University Hospital, Odense
| | - Jukka Kanerva
- HUS, Helsinki University Hospital, University of Helsinki, New Children's Hospital, Helsinki
| | - Thomas Leth Frandsen
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen
| | - Bodil Als-Nielsen
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen
| | - Lisa Lyngsie Hjalgrim
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen; Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Copenhagen
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Affiliation(s)
- Kjeld Schmiegelow
- Faculty of Health and Clinical Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, 2200, Denmark; Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark.
| | - Cecilie Utke Rank
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark
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Rank CU, Schmiegelow K. Optimal approach to the treatment of young adults with acute lymphoblastic leukemia in 2020. Semin Hematol 2020; 57:102-114. [PMID: 33256899 DOI: 10.1053/j.seminhematol.2020.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 01/19/2023]
Abstract
Akin to the introduction of tyrosine kinase inhibitors to Philadelphia chromosome-positive acute lymphoblastic leukemia (ALL), pediatric-based asparaginase-heavy approaches have revolutionized the treatment of young adults with the Philadelphia chromosome-negative subset the past decades. Once again, we are approaching a new era. An era of precision medicine with immunotherapy and other molecularly targeted treatments that offers unique opportunities to customize treatment intensity with or without hematopoietic stem cell transplantation, reduce the burden of toxicities, and combat persistent residual disease. Recently approved agents for refractory/relapsed B-cell precursor ALL include the chimeric antigen receptor-modified T-cells, the anti-CD22 monoclonal antibody-drug conjugate, inotuzumab ozogamicin, and the bispecific anti-CD19 T-cell engager, blinatumomab. These agents are expected to move widely into the frontline setting along with the proteasome inhibitors, bortezomib and carfilzomib, as well as tyrosine kinase inhibitors for Philadelphia-like rearrangements that are especially frequent among young adults. To this add the BH3 mimetics, venetoclax and navitoclax, which are being widely explored in refractory/relapsed as well as frontline settings for B- and T-cell ALL. The promising anti-CD38 monoclonal antibody, daratumumab, is entering the scene of refractory/relapsed T-ALL, whereas the old purine analogue, nelarabine, is being evaluated in a new upfront setting. This review focuses on 2 main questions: How do we optimize frontline as well as salvage ALL treatment of young adults in the 2020s? Not least, how do we address the current burden of serious toxicities unique to young adults?
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Affiliation(s)
- Cecilie Utke Rank
- Pediatric Oncology Research Laboratory, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Hematology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Kjeld Schmiegelow
- Pediatric Oncology Research Laboratory, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark.
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Jarvis KB, Nielsen RL, Gupta R, Hede FD, Huttunen P, Jónsson ÓG, Rank CU, Ranta S, Saks K, Trakymiene SS, Tuckuviene R, Tulstrup M, Ruud E, Schmiegelow K, LeBlanc M. Polygenic risk score-analysis of thromboembolism in patients with acute lymphoblastic leukemia. Thromb Res 2020; 196:15-20. [PMID: 32818716 DOI: 10.1016/j.thromres.2020.08.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Thromboembolism (TE) is a common and serious toxicity of acute lymphoblastic leukemia (ALL) treatment, but studies of genetic predisposition have been underpowered with conflicting results. We tested whether TE in ALL and TE in the general adult population have a shared genetic etiology. MATERIALS AND METHODS We prospectively registered TE events and collected germline DNA in patients 1.0-45.9 years in the Nordic Society of Pediatric Hematology and Oncology (NOPHO) ALL2008 study (7/2008-7/2016). Based on summary statistics from two large genome-wide association studies (GWAS) on venous TE in adults (the International Network of VENous Thromboembolism Clinical Research Networks (INVENT) consortium and the UK Biobank), we performed polygenic risk score (PRS) analysis on TE development in the NOPHO cohort, progressively expanding the PRS by increasing the p-value threshold of single nucleotide polymorphism (SNP) inclusion. RESULTS AND CONCLUSION Eighty-nine of 1252 patients with ALL developed TE, 2.5 year cumulative incidence 7.2%. PRS of genome-wide significant SNPs from the INVENT and UK Biobank data were not significantly associated with TE, HR 1.16 (p 0.14) and 1.02 (p 0.86), respectively. Expanding PRS by increasing p-value threshold did not reveal polygenic overlap. However, subgroup analysis of adolescents 10.0-17.9 years (n = 231), revealed significant polygenic overlap with the INVENT GWAS. The best fit PRS, including 16,144 SNPs, was associated with TE with HR 1.76 (95% CI 1.23-2.52, empirical p-value 0.02). Our results support an underlying genetic predisposition for TE in adolescents with ALL and should be explored further in future TE risk prediction models.
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Affiliation(s)
- Kirsten Brunsvig Jarvis
- Department of Pediatric Hematology and Oncology, Oslo University Hospital, Postboks 4950 Nydalen, 0424 Oslo, Norway; Department of Pediatric Research, Oslo University Hospital, Postbok 4950 Nydalen, 0424 Oslo, Norway; The Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Postboks 1072 Blindern, 0316 Oslo, Norway.
| | - Rikke Linnemann Nielsen
- Department of Health technology, Technical University of Denmark, 2800 Kgs Lyngby, Denmark; Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University Hospital of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Ramneek Gupta
- Department of Health technology, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Freja Dahl Hede
- Department of Health technology, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Pasi Huttunen
- Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, New Children's Hospital, Helsinki University Hospital, Stenbäckinkatu 9, 00290 Helsinki, Finland
| | - Ólafur Gisli Jónsson
- Children's Hospital, Barnaspitali Hringsins, Landspitali University Hospital, Hringbraut 101, 101 Reykjavik, Iceland
| | - Cecilie Utke Rank
- Department of hematology, Rigshospitalet, University of Copenhagen, Belgdamsvej 9, 2100 Copenhagen, Denmark; Pediatric Oncology Research Laboratory, Rigshospitalet, University of Copenhagen, Belgdamsvej 9, 2100 Copenhagen, Denmark
| | - Susanna Ranta
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Eugeniavägen 3, 171 76 Solna, Sweden; Childhood Cancer Research Unit, Women's and Children's Health, Karolinska Insitutet, Tomtebodavägen 18, 171 77 Solna, Sweden
| | - Kadri Saks
- Department of Hematology and Oncology, Tallinn Children's Hospital, 13419 Tallinn, Estonia
| | | | - Ruta Tuckuviene
- Department of Pediatrics, Aalborg University Hospital, Hobrovej 18-22, 9100 Aalborg, Denmark
| | - Morten Tulstrup
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University Hospital of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | | | - Ellen Ruud
- Department of Pediatric Hematology and Oncology, Oslo University Hospital, Postboks 4950 Nydalen, 0424 Oslo, Norway; The Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Postboks 1072 Blindern, 0316 Oslo, Norway
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University Hospital of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark; Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Nørregade 10, 1165 Copenhagen, Denmark
| | - Marissa LeBlanc
- Oslo Centre for Biostatistics and Epidemiology, Oslo University Hospital, Postboks 4950 Nydalen, 0424 Oslo, Norway
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Tuckuviene R, Bjerg CL, Jonsson OG, Langstrom S, Rank CU, Ranta S, Saks K, Trakymiene SS, Ruud E. Pulmonary embolism in acute lymphoblastic leukemia - An observational study of 1685 patients treated according to the NOPHO ALL2008 protocol. Res Pract Thromb Haemost 2020; 4:866-871. [PMID: 32685896 PMCID: PMC7354408 DOI: 10.1002/rth2.12356] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/08/2020] [Accepted: 04/16/2020] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Pulmonary embolism (PE) is a serious complication of acute lymphoblastic leukemia (ALL). We examined the cumulative incidence and clinical presentation of PE in a well-defined cohort of patients with ALL aged 1-45 years treated according to the Nordic Society of Pediatric Hematology and Oncology (NOPHO) ALL2008 protocol. METHODS As part of the mandatory toxicity reporting of NOPHO ALL2008, thromboembolism including PE was reported consecutively. The cumulative incidence of first-time PE was calculated using the Aalen-Johansen estimator during a 2.5-year period from ALL diagnosis. We used Fisher's exact test to examine categorical variables and Cox logistic regression to estimate hazard ratios (HRs) for PE. RESULTS PE was diagnosed in 32 of 1685 patients. The 2.5-year cumulative incidence of first-time PE increased with age: 0.43% (95% CI, 0.18-1.03) in children aged 1-9 years, 3.28% (95% CI, 1.72-6.22) in children aged 10-17 years, and 7.22% (95% CI, 4.61-11.21) in adults aged 18-45 years. The majority of PEs, 78% (25/32), occurred during asparaginase treatment. HRs adjusted for age and sex were associated with male sex (HR, 2.4; 95% CI, 1.0-5.6) and older age (10-17 years: HR 7.5; 95% CI, 2.5-22.2), 18-45 years: HR, 16.5; 95% CI, 6.1-44.5). In two-thirds of the patients (63%; 17/27), PE and its treatment had no impact on the administered doses of asparaginase. PE-associated 30-day mortality was 9.4% (95% CI, 1.9-25.0). CONCLUSIONS Awareness of PE is warranted during ALL treatment. Larger multicenter studies are needed to examine predictors of PE in ALL.
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Affiliation(s)
- Ruta Tuckuviene
- Department of PediatricsAalborg University HospitalAalborgDenmark
| | | | | | - Satu Langstrom
- Division of Hematology‐Oncology and Stem Cell TransplantationNew Children’s Hospital and Helsinki University Central HospitalUniversity of HelsinkiHelsinkiFinland
| | - Cecilie Utke Rank
- Pediatric Oncology Research Laboratory and Department of HematologyRigshospitaletUniversity of CopenhagenCopenhagenDenmark
| | - Susanna Ranta
- Department of Women’s and Children’s HealthKarolinska University Hospital, and Childhood Cancer Research UnitWomen’s and Children’s HealthKarolinska InstitutetStockholmSweden
| | - Kadri Saks
- Department of OncohematologyTallinn Children’s HospitalTallinnEstonia
| | | | - Ellen Ruud
- Department of Pediatric Hematology and OncologyUnit for Pediatric and Adolescent MedicineOslo University HospitalOsloNorway
- Institute for Clinical MedicineUniversity of OsloOsloNorway
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Utke Rank C, Lynggaard LS, Toft N, Nielsen OJ, Stock W, Als-Nielsen B, Frandsen TL, Tuckuviene R, Schmiegelow K. Prophylaxis of thromboembolism during therapy with asparaginase in adults with acute lymphoblastic leukaemia. Cochrane Database of Systematic Reviews 2019. [DOI: 10.1002/14651858.cd013399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Cecilie Utke Rank
- Rigshospitalet, University Hospital of Copenhagen; Department of Hematology; Blegdamsvej 9 Copenhagen Copenhagen Denmark 2100
| | - Line Stensig Lynggaard
- Aarhus University Hospital; Department of Child and Adolescent Medicine; Palle Juul-Jensens Boulevard 99 Aarhus Denmark 8200
| | - Nina Toft
- Rigshospitalet, University Hospital of Copenhagen; Department of Hematology; Blegdamsvej 9 Copenhagen Copenhagen Denmark 2100
| | - Ove Juul Nielsen
- Rigshospitalet, University Hospital of Copenhagen; Department of Hematology; Blegdamsvej 9 Copenhagen Copenhagen Denmark 2100
| | - Wendy Stock
- University of Chicago Medicine; Department of Medicine; 900 E. 57th Street Chicago IL USA 60637
| | | | - Thomas Leth Frandsen
- Rigshospitalet, University Hospital of Copenhagen; Department of Pediatrics and Adolescent Medicine; Blegdamsvej 9 Copenhagen Denmark 2100
| | - Ruta Tuckuviene
- Aalborg University Hospital; Department of Pediatrics; Hobrovej 18-22 Aalborg Denmark 9100
| | - Kjeld Schmiegelow
- Rigshospitalet, University Hospital of Copenhagen; Department of Pediatrics and Adolescent Medicine; Blegdamsvej 9 Copenhagen Denmark 2100
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Toksvang LN, Schmidt MS, Arup S, Larsen RH, Frandsen TL, Schmiegelow K, Rank CU. Hepatotoxicity during 6-thioguanine treatment in inflammatory bowel disease and childhood acute lymphoblastic leukaemia: A systematic review. PLoS One 2019; 14:e0212157. [PMID: 31125338 PMCID: PMC6534292 DOI: 10.1371/journal.pone.0212157] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/18/2019] [Indexed: 12/14/2022] Open
Abstract
Background The recently established association between higher levels of DNA-incorporated thioguanine nucleotides and lower relapse risk in childhood acute lymphoblastic leukaemia (ALL) calls for reassessment of prolonged 6-thioguanine (6TG) treatment, while avoiding the risk of hepatotoxicity. Objectives To assess the incidence of hepatotoxicity in patients treated with 6TG, and to explore if a safe dose of continuous 6TG can be established. Data sources Databases, conference proceedings, and reference lists of included studies were systematically searched for 6TG and synonyms from 1998–2018. Methods We included studies of patients with ALL or inflammatory bowel disorder (IBD) treated with 6TG, excluding studies with 6TG as part of an intensive chemotherapy regimen. We uploaded a protocol to PROSPERO (registration number CRD42018089424). Database and manual searches yielded 1823 unique records. Of these, 395 full-texts were screened for eligibility. Finally, 134 reports representing 42 studies were included. Results and conclusions We included data from 42 studies of ALL and IBD patients; four randomised controlled trials (RCTs) including 3,993 patients, 20 observational studies including 796 patients, and 18 case reports including 60 patients. Hepatotoxicity in the form of sinusoidal obstruction syndrome (SOS) occurred in 9–25% of the ALL patients in two of the four included RCTs using 6TG doses of 40–60 mg/m2/day, and long-term hepatotoxicity in the form of nodular regenerative hyperplasia (NRH) was reported in 2.5%. In IBD patients treated with 6TG doses of approximately 23 mg/m2/day, NRH occurred in 14% of patients. At a 6TG dose of approximately 12 mg/m2/day, NRH was reported in 6% of IBD patients, which is similar to the background incidence. According to this review, doses at or below 12 mg/m2/day are rarely associated with notable hepatotoxicity and can probably be considered safe.
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Affiliation(s)
- Linea Natalie Toksvang
- Department of Paediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Magnus Strøh Schmidt
- Department of Paediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Sofie Arup
- Department of Paediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Rikke Hebo Larsen
- Department of Paediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Leth Frandsen
- Department of Paediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Kjeld Schmiegelow
- Department of Paediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Institute of Clinical Medicine, The Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
| | - Cecilie Utke Rank
- Department of Haematology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Paediatric Oncology Research Laboratory, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Abstract
Survival rates in adult patients with acute lymphoblastic leukemia (ALL) have markedly improved during the past decade. The one-size-fits-all-ages approach has been replaced with adaptation of pediatric-inspired treatment protocols for younger adults. Yet different treatment strategies for older patients are needed due to chemotherapy-related toxicities. A new era of immunotherapy has arrived, offering opportunities for targeted treatments for ALL subtypes. While CD20 targeting with rituximab has been demonstrated to improve survival when combined with chemotherapy, it has little activity as a single agent in ALL. In contrast, antibody targeting of CD19 and CD22 with blinatumomab and inotuzumab ozogamicin, respectively, has had remarkable single-agent activity in the relapsed setting. Studies are now underway to test these agents in combination with chemotherapy in the frontline setting. The goal of these studies is to improve event-free survival and overall survival by using these approaches in the frontline to eradicate minimal residual disease and, particularly in older adults with ALL, to reduce treatment-related toxicity by limiting the exposure to traditional multi-agent chemotherapy with its attendant toxicities. This review focuses on new immunotherapeutic treatment options and strategies for frontline treatment, including a brief discussion of the use of true immunotherapy, chimeric antigen receptor T-cells, for relapsed B-cell ALL, the potential for targeting CD38 in T-cell ALL, and how these approaches are facilitating the next steps to improve survival for adult patients with ALL.
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Affiliation(s)
- Cecilie Utke Rank
- Pediatric Oncology Research Laboratory and Department of Hematology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Medicine, University of Chicago Medicine, Knapp Center for Biomedical Discovery, 900 E. 57th Street, 8th Floor Chicago, IL 60637, USA
| | - Wendy Stock
- Pediatric Oncology Research Laboratory and Department of Hematology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Medicine, University of Chicago Medicine, Knapp Center for Biomedical Discovery, 900 E. 57th Street, 8th Floor Chicago, IL 60637, USA.
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Rank CU, Lommer Kristensen P, Schrøder Hansen D, Brandi L. Catheter Related Escherichia hermannii Sepsis in a Haemodialysis Patient. Open Microbiol J 2016; 10:1-3. [PMID: 27006723 PMCID: PMC4780465 DOI: 10.2174/1874285801610010001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 07/23/2015] [Accepted: 07/24/2015] [Indexed: 11/22/2022] Open
Abstract
Escherichia hermannii is an extremely rare etiological agent of
invasive infection, and thus, the bacterium was initially considered
non-pathogenic. However, in five previously reported case reports E.
hermannii has been implicated as the sole pathogen. Our case report
describes blood stream infection with E.hermannii in a
haemodialysis patient with persisting symptoms, high fever and inflammatory
markers despite appropriate antibiotic treatment until replacement of the
dialysis catheter. We suspect biofilm formation to be a crucial pathogenic
feature for E. hermannii in the maintenance of an infection, which
stresses the necessity of antibiotic treatment along with catheter replacement
in bloodstream- and catheter-related infection with E. hermannii.
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Affiliation(s)
- Cecilie Utke Rank
- Department of Cardiology, Nephrology, and Endocrinology, Nordsjællands Hospital, Hillerød, Denmark
| | - Peter Lommer Kristensen
- Department of Cardiology, Nephrology, and Endocrinology, Nordsjællands Hospital, Hillerød, Denmark
| | - Dennis Schrøder Hansen
- Department of Clinical Microbiology, Herlev and Gentofte Hospital, University Hospital of Copenhagen, Denmark
| | - Lisbet Brandi
- Department of Cardiology, Nephrology, and Endocrinology, Nordsjællands Hospital, Hillerød, Denmark
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Utke Rank C, Weis Bjerrum O, Larsen TS, Kjær L, de Stricker K, Riley CH, Hasselbalch HC. Minimal residual disease after long-term interferon-alpha2 treatment: a report on hematological, molecular and histomorphological response patterns in 10 patients with essential thrombocythemia and polycythemia vera. Leuk Lymphoma 2015; 57:348-354. [PMID: 25956046 DOI: 10.3109/10428194.2015.1049171] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Essential thrombocythemia (ET) and polycythemia vera (PV) are Philadelphia chromosome-negative chronic myeloproliferative neoplasms (MPNs) characterized by the JAK2 V617F mutation, which can be found in more than 98% of PV patients and in ∼ 50% of ET patients. Assessment of the JAK2 V617F allele burden by a highly sensitive quantitative PCR (qPCR) assay appears to be a useful tool for monitoring minimal residual disease (MRD) and evaluating treatment efficacy. This report expands and substantiates existing data, showing that IFN-alpha2 is a highly potent immunomodulating agent capable of inducing MRD with low-burden JAK2 V617F, major molecular response (MMR), complete hematological remission (CHR) and complete histomorphological normalization of the bone marrow in a sub-set of patients with ET and PV after long-term treatment (≥ 3.5 years). Furthermore, long-lasting hematological, molecular and histomorphological remissions are sustained after discontinuation of IFN-alpha2 for up to ∼ 5-6 years.
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Affiliation(s)
- Cecilie Utke Rank
- a Department of Hematology , Roskilde Hospital, University of Copenhagen , Denmark
| | - Ole Weis Bjerrum
- b Department of Hematology , Rigshospitalet, University of Copenhagen , Denmark
| | | | - Lasse Kjær
- a Department of Hematology , Roskilde Hospital, University of Copenhagen , Denmark
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Abstract
Hereditary hyperferritinemia-cataract syndrome (HHCS) is a rare autosomal dominant disorder associated with high plasma ferritin concentration without iron overload and early-onset bilateral cataract. The deregulation of ferritin production in HHCS is caused by mutations in the iron-responsive elements (IREs) of the ferritin L-subunit gene (FTLgene) – interfering with the high-affinity interaction between IREs and iron regulatory proteins (IRPs), disturbing the negative regulatory control of ferritin synthesis and resulting in excessive production of L-ferritin. We report a 44-year-old woman initially suspected of having hereditary haemochromatosis and later together with family members diagnosed with HHCS. Genetic analysis showed heterozygosity for a G32T point mutation (Paris 2 mutation) in the IRE located in the 5' untranslated region (UTR) of theFTLgene. The differential diagnosis of hereditary haemochromatosis and HHCS together with the rarity and the versatile phenotype in HHCS obscures the diagnostic process, which emphasises the importance of the correct diagnosis of HHCS in order to prevent unnecessary phlebotomy.
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Rank CU, Kremer Hovinga J, Taleghani MM, Lämmle B, Gøtze JP, Nielsen OJ. Congenital thrombotic thrombocytopenic purpura caused by new compound heterozygous mutations of theADAMTS13gene. Eur J Haematol 2013; 92:168-71. [DOI: 10.1111/ejh.12197] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Cecilie Utke Rank
- Department of Hematology; Rigshospitalet University Hospital; Copenhagen Denmark
| | - Johanna Kremer Hovinga
- Department of Hematology & Central Hematology Laboratory; Inselspital, Bern University Hospital & University of Bern; Bern Switzerland
| | - Magnus Mansouri Taleghani
- Department of Hematology & Central Hematology Laboratory; Inselspital, Bern University Hospital & University of Bern; Bern Switzerland
| | - Bernhard Lämmle
- Department of Hematology & Central Hematology Laboratory; Inselspital, Bern University Hospital & University of Bern; Bern Switzerland
| | - Jens Peter Gøtze
- Department of Clinical Chemistry; Rigshospitalet University Hospital; Copenhagen Denmark
| | - Ove Juul Nielsen
- Department of Hematology; Rigshospitalet University Hospital; Copenhagen Denmark
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