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Rady K, Blombery P, Westerman DA, Wall M, Curtis M, Campbell LJ, Seymour JF. "Reversible" myelodysplastic syndrome or ineffectual clonal haematopoiesis? - add(6p) myeloid neoplasm with a spontaneous cytogenetic remission. Leuk Res 2018; 73:1-4. [PMID: 30170269 DOI: 10.1016/j.leukres.2018.08.010] [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] [Received: 05/11/2018] [Revised: 08/09/2018] [Accepted: 08/12/2018] [Indexed: 10/28/2022]
Abstract
Cytotoxic chemotherapy has inherent mutagenic potential and alters the bone marrow microenvironment after therapy. In some cases, this potentiates expansion of an aberrant clone and may lead to a therapy-related myeloid neoplasm if the clone overcomes selective pressure. We present the case of a 43-year-old woman diagnosed with an indolent, therapy-related myeloid neoplasm with an isolated chromosome 6p abnormality following treatment for de novo Acute Myeloid Leukaemia (AML), who manifest a sustained spontaneous cytogenetic remission two years later, possibly due to an ineffectual or non-dominant founding clone. This case reminds us to be mindful of the possibility that clonal haematopoiesis may not always equate to clinically relevant disease, even in the setting of an abnormal clonal karyotype.
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Affiliation(s)
- K Rady
- Department of Haematology, Peter MacCallum Cancer Centre, East Melbourne, VIC, Australia; Department of Pathology, Peter MacCallum Cancer Centre, East Melbourne, VIC, Australia.
| | - P Blombery
- Department of Pathology, Peter MacCallum Cancer Centre, East Melbourne, VIC, Australia
| | - D A Westerman
- Department of Haematology, Peter MacCallum Cancer Centre, East Melbourne, VIC, Australia; Department of Pathology, Peter MacCallum Cancer Centre, East Melbourne, VIC, Australia; University of Melbourne, Parkville, VIC, Australia
| | - M Wall
- Victorian Cancer Cytogenetics Service, Fitzroy, VIC, Australia; Department of Medicine, St Vincent's Hospital, University of Melbourne, Fitzroy, VIC, Australia; St Vincent's Institute of Medical Research, Fitzroy, VIC, Australia
| | - M Curtis
- Victorian Cancer Cytogenetics Service, Fitzroy, VIC, Australia
| | - L J Campbell
- Victorian Cancer Cytogenetics Service, Fitzroy, VIC, Australia
| | - J F Seymour
- Department of Haematology, Peter MacCallum Cancer Centre, East Melbourne, VIC, Australia; University of Melbourne, Parkville, VIC, Australia
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Cheah CY, Herbert KE, O'Rourke K, Kennedy GA, George A, Fedele PL, Gilbertson M, Tan SY, Ritchie DS, Opat SS, Prince HM, Dickinson M, Burbury K, Wolf M, Januszewicz EH, Tam CS, Westerman DA, Carney DA, Harrison SJ, Seymour JF. A multicentre retrospective comparison of central nervous system prophylaxis strategies among patients with high-risk diffuse large B-cell lymphoma. Br J Cancer 2014; 111:1072-9. [PMID: 25072255 PMCID: PMC4453849 DOI: 10.1038/bjc.2014.405] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 06/04/2014] [Accepted: 06/23/2014] [Indexed: 01/17/2023] Open
Abstract
Background: Central nervous system (CNS) relapse in diffuse large B-cell lymphoma (DLBCL) is a devastating complication; the optimal prophylactic strategy remains unclear. Methods: We performed a multicentre, retrospective analysis of patients with DLBCL with high risk for CNS relapse as defined by two or more of: multiple extranodal sites, elevated serum LDH and B symptoms or involvement of specific high-risk anatomical sites. We compared three different strategies of CNS-directed therapy: intrathecal (IT) methotrexate (MTX) with (R)-CHOP ‘group 1' R-CHOP with IT MTX and two cycles of high-dose intravenous (IV) MTX ‘group 2' dose-intensive systemic antimetabolite-containing chemotherapy (Hyper-CVAD or CODOXM/IVAC) with IT/IV MTX ‘group 3'. Results: Overall, 217 patients were identified (49, 125 and 43 in groups 1–3, respectively). With median follow-up of 3.4 (range 0.2–18.6) years, 23 CNS relapses occurred (12, 10 and 1 in groups 1–3 respectively). The 3-year actuarial rates (95% CI) of CNS relapse were 18.4% (9.5–33.1%), 6.9% (3.5–13.4%) and 2.3% (0.4–15.4%) in groups 1–3, respectively (P=0.009). Conclusions: The addition of high-dose IV MTX and/or cytarabine was associated with lower incidence of CNS relapse compared with IT chemotherapy alone. However, these data are limited by their retrospective nature and warrant confirmation in prospective randomised studies.
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Affiliation(s)
- C Y Cheah
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
| | - K E Herbert
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia [3] Cabrini Medical Centre, Malvern, Victoria, Australia
| | - K O'Rourke
- Department of Haematology, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - G A Kennedy
- 1] Department of Haematology, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia [2] University of Queensland, St Lucia, Queensland, Australia
| | - A George
- Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia
| | - P L Fedele
- Department of Haematology, Monash Health, Clayton, Victoria, Australia
| | - M Gilbertson
- 1] Department of Haematology, Monash Health, Clayton, Victoria, Australia [2] Department of Haematology, Monash University, Clayton, Victoria, Australia
| | - S Y Tan
- Department of Haematology, Monash Health, Clayton, Victoria, Australia
| | - D S Ritchie
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
| | - S S Opat
- 1] Department of Haematology, Monash Health, Clayton, Victoria, Australia [2] Department of Haematology, Monash University, Clayton, Victoria, Australia
| | - H M Prince
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia [3] Cabrini Medical Centre, Malvern, Victoria, Australia [4] Department of Haematology, Monash University, Clayton, Victoria, Australia
| | - M Dickinson
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
| | - K Burbury
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
| | - M Wolf
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia [3] Cabrini Medical Centre, Malvern, Victoria, Australia
| | - E H Januszewicz
- Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia
| | - C S Tam
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
| | - D A Westerman
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
| | - D A Carney
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
| | - S J Harrison
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
| | - J F Seymour
- 1] Department of Haematology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Melbourne, Victoria 8006, Australia [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
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Herbert KE, Demosthenous L, Wiesner G, Link E, Westerman DA, Came N, Ritchie DS, Harrison S, Seymour JF, Prince HM. Plerixafor plus pegfilgrastim is a safe, effective mobilization regimen for poor or adequate mobilizers of hematopoietic stem and progenitor cells: a phase I clinical trial. Bone Marrow Transplant 2014; 49:1056-62. [PMID: 24887382 DOI: 10.1038/bmt.2014.112] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 03/05/2014] [Accepted: 03/25/2014] [Indexed: 01/18/2023]
Abstract
The safety, kinetics and efficacy of plerixafor+pegfilgrastim for hematopoietic stem and progenitor cell (HSPC) mobilization are poorly understood. We treated 12 study patients (SP; lymphoma n=10 or myeloma n=2) with pegfilgrastim (6 mg SC stat D1) and plerixafor (0.24 mg/kg SC nocte from D3). Six SP were 'predicted poor-mobilizers' and six were 'predicted adequate-mobilizers'. Peripheral blood (PB) CD34(+) monitoring commenced on D3. Apheresis commenced on D4. Comparison was with 22 historical controls (HC; lymphoma n=18, myeloma n=4; poor mobilizers n=4), mobilized with pegfilgrastim alone. Eight (67%) SP had PB CD34(+) count ⩽5 × 10(6)/L D3 post pegfilgrastim; all SP surpassed this threshold the morning after plerixafor. In SP, PBCD34(+) counts peaked D4 6/12 (50%), remaining ⩾5 × 10(6)/L for 4 days in 8/12 (67%). All SP successfully yielded target cell numbers (⩾2 × 10(6)/kg) within four aphereses. After maximum four aphereses, median total CD34+ yield was higher in SP than HC; 8.0 (range 2.4-12.9) vs 4.8 (0.4-14.0) × 10(6)/kg (P=0.04). Seven of twelve (58%) SP achieved target yield after one apheresis. Flow cytometry revealed no tumor cells in PB or apheresis product of SP. Plerixafor+pegfilgrastim was well tolerated with bone pain (n=2), diarrhoea (n=2) and facial paraesthesiae (n=3). Plerixafor+pegfilgrastim is a simple, safe and effective HSPC mobilization regimen in myeloma and lymphoma, in both poor and good mobilizers, and is superior to pegfilgrastim alone.
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Affiliation(s)
- K E Herbert
- Department of Haematology, Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, Victoria, Australia
| | - L Demosthenous
- Centre for Biostatistics and Clinical Trials, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia
| | - G Wiesner
- Centre for Biostatistics and Clinical Trials, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia
| | - E Link
- Centre for Biostatistics and Clinical Trials, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia
| | - D A Westerman
- Department of Pathology, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia
| | - N Came
- Department of Pathology, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia
| | - D S Ritchie
- 1] Department of Haematology, Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, Victoria, Australia [2] Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - S Harrison
- 1] Department of Haematology, Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, Victoria, Australia [2] Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - J F Seymour
- 1] Department of Haematology, Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, Victoria, Australia [2] Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - H M Prince
- 1] Department of Haematology, Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, Victoria, Australia [2] Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Victoria, Australia
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