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El Cheikh J, Bidaoui G, Atoui A, Terro K, Sharrouf L, Zahreddine A, Moukalled N, Abou Dalle I, Bazarbachi A, Mohty M, Dulery R. Clofarabine and total body irradiation (TBI) as conditioning regimen for allogeneic stem cell transplantation in high-risk acute leukemia patients: a two-center retrospective cohort study. Bone Marrow Transplant 2023:10.1038/s41409-023-01947-z. [PMID: 36914730 DOI: 10.1038/s41409-023-01947-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/14/2023] [Accepted: 02/20/2023] [Indexed: 03/16/2023]
Abstract
Clofarabine (Clo) is an immunosuppressive purine analog that may have better anti-leukemic activity than fludarabine (Flu). The addition of total body irradiation (TBI) to conditioning regimens has been widely investigated. However, the use of single agent Clo in combination with intermediate doses of TBI ranging from 4 to 8 Gy has not been studied yet. This study is a double center, observational, retrospective study of patients with high-risk hematological malignancies diagnosed from 2012 to 2021, treated at the American University of Beirut Medical Center in Beirut (AUBMC), Lebanon, and Saint-Antoine Hospital (SAH) in Paris, France. It aims to identify the outcome of patients with high-risk hematological malignancies who underwent allogeneic stem cell transplant (allo-SCT) and received Clo and TBI (4-8 Gy) before transplant. Data regarding patient baseline characteristics, disease-related factors, and transplant outcomes including graft-versus-host disease (GVHD), Non-relapse mortality (NRM), progression-free survival (PFS), and overall survival (OS), were collected. We identified 24 high-risk patients diagnosed with a hematological malignancy. The median age at transplant was 37 years (range 22-78). At the time of the transplant, only 15 patients (63%) were in complete remission (CR). All patients received Clo/TBI (4-8 Gy). After a median follow-up of 40 months, the cumulative incidences of grade II-III acute GVHD, grade IV acute GVHD, and chronic GVHD were 50%, 4%, and 8%, respectively. NRM at 100 days, and 1 year after transplant was 4% and 25%, respectively. 17% of the patients had a relapse or progression of the disease by the end of the study. The 2-year PFS and OS were 50% and 56%, respectively. The median PFS and OS were 66 and 68 months respectively. As a conclusion, Clo/TBI (4-8 Gy) as a conditioning regimen for allo-SCT in high-risk patients confers disease control with an acceptable toxicity profile.
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Affiliation(s)
- Jean El Cheikh
- Division of Hematology/Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon. .,Bone Marrow Transplantation Program, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Ghassan Bidaoui
- Division of Hematology/Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Ali Atoui
- Division of Hematology/Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Khodr Terro
- Division of Hematology/Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Layal Sharrouf
- Division of Hematology/Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Ammar Zahreddine
- Bone Marrow Transplantation Program, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Nour Moukalled
- Division of Hematology/Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.,Bone Marrow Transplantation Program, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Imane Abou Dalle
- Division of Hematology/Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.,Bone Marrow Transplantation Program, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Ali Bazarbachi
- Division of Hematology/Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.,Bone Marrow Transplantation Program, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Mohamad Mohty
- Department of Hematology, Saint Antoine Hospital, INSERM UMR 938, Sorbonne University, Paris, France
| | - Remy Dulery
- Department of Hematology, Saint Antoine Hospital, INSERM UMR 938, Sorbonne University, Paris, France
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2
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Connor MP, Loren AW, Hexner EO, Martin ME, Gill SI, Luger SM, Mangan JK, Perl AE, McCurdy SR, Pratz KW, Timlin C, Freyer CW, Carulli A, Catania C, Smith J, Hollander L, Zebrowski AM, Stadtmauer EA, Porter DL, Frey NV. Clofarabine and Busulfan Myeloablative Conditioning in Allogeneic Hematopoietic Cell Transplantation for Patients With Active Myeloid Malignancies. Transplant Cell Ther 2023; 29:113-118. [PMID: 36336258 DOI: 10.1016/j.jtct.2022.10.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/19/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022]
Abstract
Patients with refractory or relapsed and refractory myeloid malignancies have a poor prognosis. Allogeneic hematopoietic cell transplantation (HCT) with myeloablative conditioning (MAC) in patients with active, chemotherapy-refractory myeloid disease is historically associated with high rates of relapse and nonrelapse mortality (NRM). A MAC regimen combining clofarabine with busulfan (Clo/Bu4) has been reported to exhibit antileukemic activity with acceptable toxicity in patients age ≤70 years. Here we describe the clinical outcomes of a real-world population of patients with active myeloid malignancies undergoing allogeneic HCT with Clo/Bu4 MAC. In a single-center retrospective descriptive analysis, we identified patients who underwent HCT for myeloid malignancies not in remission using Clo/Bu4 MAC between 2012 and 2020. We report event-free survival (EFS) and overall survival (OS), cumulative incidences of relapse and NRM, and the incidence and severity of acute and chronic graft-versus-host disease (GVHD). We identified 69 patients with a median age of 60 years (range, 22 to 70 years). Most patients had relapsed/refractory or primary refractory acute myelogenous leukemia (AML; n = 55) or refractory myelodysplastic syndrome (MDS; n = 12); 1 patient had chronic myelogenous leukemia, and 1 patient had a blastic plasmacytoid dendritic cell neoplasm. Fifty patients (72.5%) had complete remission at day 100 post-transplantation. Two-year EFS and OS were 30% (95% confidence interval [CI], 20% to 44%) and 40% (95% CI, 29% to 54%), respectively. Patients with AML had a 2-year EFS and OS of 28% (95% CI, 18% to 44%) and 38% (95% CI, 27% to 54%), respectively; those with MDS had a 2-year EFS and OS of 47% (95% CI, 25% to 88%) and 56% (95% CI, 33% to 94%), respectively. The cumulative incidence of relapse at 2 years was 39% (95% CI, 27% to 51%) for all patients, including 45% (95% CI, 31% to 58%) in the patients with AML and 18% (95% CI, 2% to 45%) in those with MDS. NRM at 2 years was 31% (95% CI, 20% to 42%), including 27% (95% CI, 15% to 39%) in patients with AML and 35% (95% CI, 10% to 63%) in those with MDS. The total incidence of acute GVHD (aGVHD) of any severity was 80%, and the incidence of grade III-IV aGVHD was 22%. In patients who achieved remission, those who required systemic immunosuppression for aGVHD (58%) had poorer 2-year EFS (29% versus 54%; P = .05) and 2-year OS (39% versus 70%; P = .04) compared to those who did not. The 2-year cumulative incidence of chronic GVHD was 44% (95% CI, 28% to 58%). Clo/Bu4 MAC followed by allogeneic HCT for patients with active myeloid malignancies is an effective transplantation strategy for patients up to age 70, particularly those with advanced MDS. The high incidence of and poor outcomes associated with aGVHD highlight the importance of optimizing preventative strategies.
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Affiliation(s)
- Matthew P Connor
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Alison W Loren
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Elizabeth O Hexner
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Mary Ellen Martin
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Saar I Gill
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Selina M Luger
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - James K Mangan
- Moores Cancer Center at the University of California, San Diego, California
| | - Alexander E Perl
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Shannon R McCurdy
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Keith W Pratz
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Colleen Timlin
- Department of Pharmacy, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Craig W Freyer
- Department of Pharmacy, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Alison Carulli
- Department of Pharmacy, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Christopher Catania
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jacqueline Smith
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Lauren Hollander
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Alexis M Zebrowski
- Department of Emergency Medicine, Icahn School of Medicine at Mount Sinai, New York, New York; Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Edward A Stadtmauer
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - David L Porter
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Noelle V Frey
- Abramson Cancer Center, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
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3
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Megías-Vericat JE, Martínez-Cuadrón D, Sanz MÁ, Montesinos P. Salvage regimens using conventional chemotherapy agents for relapsed/refractory adult AML patients: a systematic literature review. Ann Hematol 2018; 97:1115-1153. [DOI: 10.1007/s00277-018-3304-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 03/12/2018] [Indexed: 12/26/2022]
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He F, Sapkota S, Parker S, Defor T, Warlick E, Ustun C, Eckfeldt C, Rashidi A, Kurtzweil A, Weisdorf D, Bejanyan N. A real-world study of clofarabine and cytarabine combination therapy for patients with acute myeloid leukemia. Leuk Lymphoma 2018; 59:2352-2359. [PMID: 29415603 DOI: 10.1080/10428194.2018.1433297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Clofarabine and cytarabine (Clo + Ara-C) combinations have efficacy in treatment of acute myeloid leukemia (AML). We retrospectively analyzed clinical outcomes of 71 AML patients receiving Clo + Ara-C regimens at the University of Minnesota from 2011 to 2016: 44 patients (62%) had newly diagnosed AML and 27 patients (38%) had relapsed/refractory AML. The median age of patients was 69 years (interquartile range [IQR], 63-75 years). Nearly 60% of the patients had secondary AML, and about half of patients had adverse risk cytogenetics. Objective response rate (ORR) was 42% in all patients with complete remission (CR) rate of 20%. Progression-free survival (PFS) at 2 years was 16% (95% CI 8-27%) and overall survival (OS) at 2 years was 21% (95% CI 11-33%) for all patients. The 30-day mortality rate was 18%. Clo + Ara-C- containing regimens are an acceptable upfront therapy option for patients who are not candidates for "7 + 3" induction, but do not induce durable remissions.
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Affiliation(s)
- Fiona He
- a Division of Hematology, Oncology and Transplantation, Department of Medicine , University of Minnesota , Minneapolis , MN , USA
| | - Smarika Sapkota
- b Division of General Internal Medicine, Department of Medicine , University of Minnesota , Minneapolis , MN , USA
| | - Sarah Parker
- b Division of General Internal Medicine, Department of Medicine , University of Minnesota , Minneapolis , MN , USA
| | - Todd Defor
- c Biostatistics and Bioinformatics Core, Masonic Cancer Center , University of Minnesota , Minneapolis , MN , USA
| | - Erica Warlick
- a Division of Hematology, Oncology and Transplantation, Department of Medicine , University of Minnesota , Minneapolis , MN , USA
| | - Celalettin Ustun
- a Division of Hematology, Oncology and Transplantation, Department of Medicine , University of Minnesota , Minneapolis , MN , USA
| | - Craig Eckfeldt
- a Division of Hematology, Oncology and Transplantation, Department of Medicine , University of Minnesota , Minneapolis , MN , USA
| | - Armin Rashidi
- a Division of Hematology, Oncology and Transplantation, Department of Medicine , University of Minnesota , Minneapolis , MN , USA
| | - Andy Kurtzweil
- d Department of Pharmacy , University of Minnesota Medical Center , Minneapolis , MN , USA
| | - Daniel Weisdorf
- a Division of Hematology, Oncology and Transplantation, Department of Medicine , University of Minnesota , Minneapolis , MN , USA
| | - Nelli Bejanyan
- a Division of Hematology, Oncology and Transplantation, Department of Medicine , University of Minnesota , Minneapolis , MN , USA
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Buza V, Rajagopalan B, Curtis AB. Cancer Treatment–Induced Arrhythmias. Circ Arrhythm Electrophysiol 2017; 10:CIRCEP.117.005443. [DOI: 10.1161/circep.117.005443] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Accepted: 07/07/2017] [Indexed: 01/23/2023]
Affiliation(s)
- Vitaly Buza
- From the Department of Medicine, University at Buffalo, NY
| | | | - Anne B. Curtis
- From the Department of Medicine, University at Buffalo, NY
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6
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Mannargudi MB, Deb S. Clinical pharmacology and clinical trials of ribonucleotide reductase inhibitors: is it a viable cancer therapy? J Cancer Res Clin Oncol 2017. [PMID: 28624910 DOI: 10.1007/s00432-017-2457-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE Ribonucleotide reductase (RR) enzymes (RR1 and RR2) play an important role in the reduction of ribonucleotides to deoxyribonucleotides which is involved in DNA replication and repair. Augmented RR activity has been ascribed to uncontrolled cell growth and tumorigenic transformation. METHODS This review mainly focuses on several biological and chemical RR inhibitors (e.g., siRNA, GTI-2040, GTI-2501, triapine, gemcitabine, and clofarabine) that have been evaluated in clinical trials with promising anticancer activity from 1960's till 2016. A summary on whether their monotherapy or combination is still effective for further use is discussed. RESULTS Among the RR2 inhibitors evaluated, GTI-2040, siRNA, gallium nitrate and didox were more efficacious as a monotherapy, whereas triapine was found to be more efficacious as combination agent. Hydroxyurea is currently used more in combination therapy, even though it is efficacious as a monotherapy. Gallium nitrate showed mixed results in combination therapy, while the combination activity of didox is yet to be evaluated. RR1 inhibitors that have long been used in chemotherapy such as gemcitabine, cladribine, fludarabine and clofarabine are currently used mostly as a combination therapy, but are equally efficacious as a monotherapy, except tezacitabine which did not progress beyond phase I trials. CONCLUSIONS Based on the results of clinical trials, we conclude that RR inhibitors are viable treatment options, either as a monotherapy or as a combination in cancer chemotherapy. With the recent advances made in cancer biology, further development of RR inhibitors with improved efficacy and reduced toxicity is possible for treatment of variety of cancers.
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Affiliation(s)
- Mukundan Baskar Mannargudi
- Clinical Pharmacology Program, Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Subrata Deb
- Department of Biopharmaceutical Sciences, Roosevelt University College of Pharmacy, 1400 N. Roosevelt Blvd., Schaumburg, IL, 60173, USA.
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Huguet F, Leguay T, Raffoux E, Rousselot P, Vey N, Pigneux A, Ifrah N, Dombret H. Clofarabine for the treatment of adult acute lymphoid leukemia: the Group for Research on Adult Acute Lymphoblastic Leukemia intergroup. Leuk Lymphoma 2016; 56:847-57. [PMID: 24996442 DOI: 10.3109/10428194.2014.887708] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Clofarabine, a second-generation purine analog displaying potent inhibition of DNA synthesis and favorable pharmacologic profile, is approved for the treatment of acute lymphoblastic leukemia (ALL) after failure of at least two previous regimens in patients up to 21 years of age at diagnosis. Good neurologic tolerance, synergy with alkylating agents, management guidelines defined through pediatric ALL and adult acute myeloid leukemia, have also prompted its administration in more than 100 adults with Philadelphia chromosome-positive and negative B lineage and T lineage ALL, as single agent (40 mg/m(2)/ day for 5 days), or in combination. In a Group for Research on Adult Acute Lympho- blastic Leukemia (GRAALL) retrospective study of two regimens (clofarabine ± cyclophosphamide + / - etoposide (ENDEVOL) ± mitoxantrone ± asparaginase ± dexamethasone (VANDEVOL)), remission was achieved in 50% of 55 relapsed/refractory patients, and 17-35% could proceed to allogeneic stem cell. Clofarabine warrants further exploration in advanced ALL treatment and bridge-to-transplant.
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Ho KV, Solimando DA, Waddell JA. Clofarabine and Cytarabine Regimen for Acute Myeloid Leukemia. Hosp Pharm 2015; 50:969-74. [PMID: 27621503 PMCID: PMC4750846 DOI: 10.1310/hpj5011-969] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The complexity of cancer chemotherapy requires pharmacists be familiar with the complicated regimens and highly toxic agents used. This column reviews various issues related to preparation, dispensing, and administration of antineoplastic therapy, and the agents, both commercially available and investigational, used to treat malignant diseases. Questions or suggestions for topics should be addressed to Dominic A. Solimando, Jr, President, Oncology Pharmacy Services, Inc., 4201 Wilson Blvd #110-545, Arlington, VA 22203, e-mail: OncRxSvc@comcast.net; or J. Aubrey Waddell, Professor, University of Tennessee College of Pharmacy; Oncology Pharmacist, Pharmacy Department, Blount Memorial Hospital, 907 E. Lamar Alexander Parkway, Maryville, TN 37804, e-mail: waddfour@charter.net.
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Affiliation(s)
- Kristin V Ho
- Dr. Ho is an Oncology Pharmacist at Cedars-Sinai Medical Center , Los Angeles, California . At the time this review was initiated, she was a PGY2 Oncology Pharmacy Resident at Walter Reed National Military Medical Center , Bethesda, Maryland
| | - Dominic A Solimando
- Dr. Ho is an Oncology Pharmacist at Cedars-Sinai Medical Center , Los Angeles, California . At the time this review was initiated, she was a PGY2 Oncology Pharmacy Resident at Walter Reed National Military Medical Center , Bethesda, Maryland
| | - J Aubrey Waddell
- Dr. Ho is an Oncology Pharmacist at Cedars-Sinai Medical Center , Los Angeles, California . At the time this review was initiated, she was a PGY2 Oncology Pharmacy Resident at Walter Reed National Military Medical Center , Bethesda, Maryland
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Lao Z, Yiu R, Wong GC, Ho A. Treatment of elderly patients with acute myeloid leukemia with azacitidine results in fewer hospitalization days and infective complications but similar survival compared with intensive chemotherapy. Asia Pac J Clin Oncol 2014; 11:54-61. [PMID: 25545192 DOI: 10.1111/ajco.12331] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2014] [Indexed: 11/30/2022]
Abstract
AIMS Azacitidine has been shown to prolong overall survival (OS) compared with best supportive care in elderly patients with acute myeloid leukemia (AML) with low blast counts but it is unknown if azacitidine has a similar efficacy in patients with blast counts of >30%. It is also unknown if azacitidine is comparable to intensive chemotherapy in terms of survival and morbidity. METHODS Differences between the outcomes of elderly AML patients who received intensive chemotherapy, azacitidine-based therapy or best supportive care are studied in this retrospective review. Patients 60 years or older diagnosed with AML between January 2009 and June 2011 were included. Those who passed away within less than 2 weeks of diagnosis were excluded. RESULTS At a median follow-up of 7.2 months (range: 0.5-26.4 months), estimated median OS for patients who received azacitidine-based therapy was 9.8 months (range: 2.4-22.5 months) compared with 8.9 months (range: 0.9-26.4 months) for patients who received intensive chemotherapy (P=0.89). Compared with azacitidine-based therapy, intensive chemotherapy is associated with more inpatient days and episodes of febrile illness requiring inpatient stay or intravenous antibiotics. CONCLUSIONS Compared with intensive chemotherapy in elderly patients with AML, azacitidine-based therapy is associated with similar median survival but lower number of hospitalization days and infective episodes.
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Affiliation(s)
- Zhentang Lao
- Department of Hematology, Singapore General Hospital, Singapore
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10
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Roberts DA, Wadleigh M, McDonnell AM, DeAngelo DJ, Stone RM, Steensma DP. Low efficacy and high mortality associated with clofarabine treatment of relapsed/refractory acute myeloid leukemia and myelodysplastic syndromes. Leuk Res 2014; 39:204-10. [PMID: 25554239 DOI: 10.1016/j.leukres.2014.11.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 11/26/2014] [Accepted: 11/29/2014] [Indexed: 10/24/2022]
Abstract
Clofarabine, a second-generation nucleoside analog, has clinical activity in relapsed or refractory acute myelogenous leukemia (AML) and higher-risk myelodysplastic syndromes (MDS). However, there are few data evaluating performance of clofarabine in populations of patients not enrolled in clinical trials. We reviewed outcomes for 84 patients treated with clofarabine for relapsed or refractory AML or MDS, either with clofarabine as monotherapy (n=19) or in combination with cytarabine (n=65). Using International Working Group (IWG) response criteria, the overall response rate (ORR) of all treated patients was 21%, with a complete response rate with either complete or incomplete hematopoietic recovery (CRR=CR+CRi) of 14%. For combination therapy, ORR was 22% with CRR of 18%, and monotherapy patients had an ORR of 21% with CRR of 11%. Although limited by small numbers, subgroup analysis did not reveal variation in response rates when comparing different risk factors. The 30-day mortality was 21% and median survival was 3 months; a subset of 12 patients who were able to go to transplant had an 18-month median survival. Clofarabine's efficacy in a "real-world" setting appears to be less than has been reported in clinical trials, and treatment is associated with a high early mortality rate.
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Affiliation(s)
- Daniel A Roberts
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Martha Wadleigh
- Division of Hematological Malignancies, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Anne M McDonnell
- Department of Pharmacy, Brigham and Women's Hospital, Boston, MA, USA
| | - Daniel J DeAngelo
- Division of Hematological Malignancies, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Richard M Stone
- Division of Hematological Malignancies, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - David P Steensma
- Division of Hematological Malignancies, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.
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11
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Kaur I, Constance JE, Kosak KM, Spigarelli MG, Sherwin CMT. An extensive pharmacokinetic, metabolic and toxicological review of elderly patients under intensive chemotherapy for acute myeloid leukemia. Expert Opin Drug Metab Toxicol 2014; 11:53-65. [DOI: 10.1517/17425255.2015.972934] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Imit Kaur
- 1University of Utah School of Medicine, Division of Clinical Pharmacology, Department of Pediatrics, 295 Chipeta Way, Salt Lake City, UT 84108, USA ;
| | - Jonathan E Constance
- 1University of Utah School of Medicine, Division of Clinical Pharmacology, Department of Pediatrics, 295 Chipeta Way, Salt Lake City, UT 84108, USA ;
| | - Ken M Kosak
- 2University of Utah, Division of Hematology and Hematologic Malignancies and Huntsman Cancer Institute, Salt Lake City, UT, USA
| | - Michael G Spigarelli
- 1University of Utah School of Medicine, Division of Clinical Pharmacology, Department of Pediatrics, 295 Chipeta Way, Salt Lake City, UT 84108, USA ;
| | - Catherine MT Sherwin
- 1University of Utah School of Medicine, Division of Clinical Pharmacology, Department of Pediatrics, 295 Chipeta Way, Salt Lake City, UT 84108, USA ;
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12
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Fozza C. The role of Clofarabine in the treatment of adults with acute myeloid leukemia. Crit Rev Oncol Hematol 2014; 93:237-45. [PMID: 25457773 DOI: 10.1016/j.critrevonc.2014.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 09/08/2014] [Accepted: 10/14/2014] [Indexed: 10/24/2022] Open
Abstract
The therapeutic scenario available for adult patients with acute myeloid leukemia (AML) has shown only partial progresses over the last few years. This is especially true for refractory and relapsed AML whose outcome is still extremely disappointing. In this context Clofarabine has offered new promising perspectives within first and second line protocols. This review will firstly describe the initial development in monotherapy, considering then the different potential combination strategies which include both polichemotherapeutic regimens and less conventional approaches with new generation drugs. The potential use of Clofarabine as induction treatment for patients candidate to stem cell transplantation and within conditioning regimens will be finally evaluated.
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Affiliation(s)
- Claudio Fozza
- Hematology, Department of Biomedical Sciences, University of Sassari, Viale San Pietro 12, 07100 Sassari, Italy.
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13
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Aleem A, Anjum F, Algahtani F, Iqbal Z, Alsaleh K, Almomen A. Clofarabine in the treatment of elderly patients with acute myeloid leukemia. Asian Pac J Cancer Prev 2014; 14:1089-92. [PMID: 23621192 DOI: 10.7314/apjcp.2013.14.2.1089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Elderly patients with acute myeloid leukemia (AML) have a poor outcome because of co- morbidities, poor tolerance to intensive chemotherapy and inherently more resistant disease. Clofarabine is a second generation nucleoside analogue which has shown promising activity in elderly patients with AML. This study was conducted to review the outcome of treatment with clofarabine in a group of such patients. METHODS The records of 5 elderly patients who were diagnosed to have AML and treated with clofarabine over a 12 month period were reviewed retrospectively. RESULTS There were 2 female and 3 male patients with a median age of 68 years (range 65-82). At the time of treatment, 2 patients had newly diagnosed AML not considered suitable for intensive therapy, while 3 patients had partial or no response to conventional chemotherapy. The overall response rate was 100%, all patients achieving a complete remission. Induction and consolidation were well tolerated. All patients developed neutropenia with a median duration of 20 days (range 17-42). One patient developed hand and foot syndrome and a generalized rash but recovered. There was no mortality and all patients remained in remission after a median follow-up of 5.2 months (Range 3-10). CONCLUSION Clofarabine (alone or in combination) is active in elderly AML patients with an acceptable safety profile and should be considered a potential option in this group.
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Affiliation(s)
- Aamer Aleem
- Department of Medicine, Division of Hematology /Oncology, College of Medicine and King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia.
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14
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Abstract
Survival rates for children with acute myeloid leukemia (AML) exceed 60 % when modern, intensified chemotherapeutic regimens and enhanced supportive care measures are employed. Despite well-recognized improvements in outcomes, primary refractory or relapsed pediatric AML yields significant morbidity and mortality, and improved understanding of this obstinate population along with refined treatment protocols are urgently needed. Although a significant number of patients with refractory or relapsed disease will achieve remission, long-term survival rates remain poor, and efforts to identify therapies which will improve OS are under continuous investigation. The current fundamental goal of such investigation is the achievement of as complete a remission as possible without dose-limiting toxicities, and the progression to hematopoietic stem cell transplantation thereafter. In this review the scope of the problem of relapsed and refractory AML as well as current and emerging chemotherapy options will be discussed.
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Clofarabine in combination with a standard remission induction regimen (cytosine arabinoside and idarubicin) in patients with previously untreated intermediate and bad-risk acute myelogenous leukemia (AML) or high-risk myelodysplastic syndrome (HR-MDS): phase I results of an ongoing phase I/II study of the leukemia groups of EORTC and GIMEMA (EORTC GIMEMA 06061/AML-14A trial). Ann Hematol 2014; 93:965-75. [PMID: 24682421 DOI: 10.1007/s00277-014-2056-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 03/10/2014] [Indexed: 10/25/2022]
Abstract
This study aims to determine the maximum tolerated dose (MTD) of clofarabine combined with the EORTC-GIMEMA 3 + 10 induction regimen (idarubicin + cytosine arabinoside) in adults with untreated acute myelogenous leukemia or high-risk myelodysplastic syndrome. In this phase I trial, 25 patients (median age 56 years) received 5 days of clofarabine as 1-h infusion (arm A) or push injection (arm B) at the dose level of 5 × 10 or 5 × 15 mg/m(2)/day in an algorithmic dose escalation 3 + 3 design. A consolidation course (intermediate dose cytosine arabinoside, idarubicin) was planned for patients in complete remission (CR). Primary endpoint was safety and tolerance as measured by dose limiting toxicity (DLT); secondary endpoints were response rate, other grade III/IV toxicities, and hematological recovery after induction and consolidation. Five DLTs were observed (in arm A: one DLT at 10 mg/m(2)/day, three at 15 mg/m(2)/day; in arm B: one DLT at 15 mg/m(2)/day). Three patients receiving 15 mg/m(2)/day were withdrawn due to adverse events not classified as DLT. Prolonged hypoplasia was observed in five patients. CR + complete remission with incomplete recovery were achieved in 21 patients (11/12 (92 %) receiving clofarabine 10 mg/m(2)/day; 10/13 (77 %) receiving clofarabine 15 mg/m(2)/day). Clofarabine, 5 × 10 mg/m(2)/day, resulted in one DLT and no early treatment withdrawals. MTD of clofarabine combined with cytosine arabinoside and idarubicin is 5 × 10 mg/m(2)/day.
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Etoposide in combination with low-dose CAG (cytarabine, aclarubicin, G-CSF) for the treatment of relapsed or refractory acute myeloid leukemia: A multicenter, randomized control trial in southwest China. Leuk Res 2013; 37:657-64. [DOI: 10.1016/j.leukres.2013.03.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Revised: 03/03/2013] [Accepted: 03/04/2013] [Indexed: 11/19/2022]
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Brandwein JM, Geddes M, Kassis J, Kew AK, Leber B, Nevill T, Sabloff M, Sandhu I, Schuh AC, Storring JM, Ashkenas J. Treatment of older patients with acute myeloid leukemia (AML): a Canadian consensus. AMERICAN JOURNAL OF BLOOD RESEARCH 2013; 3:141-64. [PMID: 23675565 PMCID: PMC3649813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 03/23/2013] [Indexed: 06/02/2023]
Abstract
Patients over age 60 comprise the majority of those diagnosed with acute myeloid leukemia (AML), but treatment approaches in this population are variable, with many uncertainties and controversies. Our group conducted a literature review to summarize the latest information and to develop a consensus document with practical treatment recommendations. We addressed five key questions: selection criteria for patients to receive intensive induction chemotherapy; optimal induction and post-remission regimens; allogeneic hematopoietic stem cell transplantation (HSCT); treatment of patients not suitable for induction chemotherapy; and treatment of patients with prior hematological disorders or therapy-related AML. Relevant literature was identified through a PubMed search of publications from 1991 to 2012. Key findings included the recognition that cytogenetics and molecular markers are major biologic determinants of treatment outcomes in the older population, both during induction therapy and following HSCT. Although disease-specific and patient-specific risk factors for poor outcomes are more common in the older population, age is not in itself sufficient grounds for withholding established treatments, including induction and consolidation chemotherapy. The role of HSCT and use of hypomethylating agents are discussed. Finally, suggested treatment algorithms are outlined, based on these recommendations.
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Affiliation(s)
- Joseph M Brandwein
- Department of Medical Oncology and Hematology, Princess Margaret Cancer CentreToronto, Ontario
| | - Michelle Geddes
- Division of Hematology and Hematologic Malignancy, Department of Medicine, University of CalgaryCalgary, Alberta
| | - Jeannine Kassis
- Department of Hematolgy, Hôpital Maisonneuve-Rosemont, University of MontrealMontreal, Québec
| | - Andrea K Kew
- Division of Hematology, Queen Elizabeth II Health Sciences CentreHalifax, Nova Scotia
| | - Brian Leber
- Juravinski Cancer Centre, Hamilton Health Sciences: McMaster UniversityHamilton, Ontario
| | - Thomas Nevill
- Vancouver General HospitalVancouver, British Columbia
| | - Mitchell Sabloff
- Department of Medicine, Division of Hematology, The Ottawa Hospital, University of OttawaOttawa, Ontario
| | - Irwindeep Sandhu
- Division of Clinical Hematology, Department of Medicine, Faculty of Medicine & Dentistry, University of AlbertaAlberta
| | - Andre C Schuh
- Department of Medical Oncology and Hematology, Princess Margaret Cancer CentreToronto, Ontario
| | - John M Storring
- Division of Hematology, McGill University Health CentreMontreal, Quebec
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18
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Tiley S, Claxton D. Clofarabine in the treatment of acute myeloid leukemia in older adults. Ther Adv Hematol 2013; 4:5-13. [PMID: 23610610 DOI: 10.1177/2040620712461666] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To review the literature evaluating the efficacy and tolerability of clofarabine as a single agent and in combination therapy for older patients with acute myeloid leukemia (AML). METHOD A literature search of the PubMed database (1996-April 2012) using the search terms clofarabine and acute myeloid leukemia was performed. All relevant English language articles were reviewed. Clinical trials with patients aged 50 years or older diagnosed with AML were included. RESULTS Two studies evaluating clofarabine as monotherapy and five studies evaluating clofarabine in combination with cytarabine were reviewed. Clofarabine demonstrated activity in older adults with AML. Response rates and median overall survival (OS) for patients receiving clofarabine were similar to those for patients receiving conventional induction chemotherapy. The induction mortality rate with clofarabine was lower than that seen with intensive chemotherapy. However, clofarabine was associated with a significant risk of severe complications including myelosuppression and sepsis. CONCLUSION Clofarabine is an active agent for the treatment of older patients with AML as a single agent or in combination therapy. Based on published data and side-effect profiles, clofarabine may be an appropriate alternative to intensive chemotherapy for older patients with AML, offering similar response rates to traditional 7+3 chemotherapy with potentially decreased induction mortality. The use of clofarabine in combination with newer agents including DNA methyltransferase inhibitors like decitabine is a promising approach for older patients who are not eligible for intensive chemotherapy. Additional randomized controlled trials are needed to directly compare the efficacy of clofarabine as a single agent and in combination therapy compared with intensive chemotherapy regimens.
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Affiliation(s)
- Stephen Tiley
- Division of Hematology/Oncology, Est Carolina University, Greenville, NC, USA
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19
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Abstract
Clofarabine is a second-generation purine nucleoside analog that has been synthesized to overcome the limitations and incorporate the best qualities of fludarabine and cladribine. Clofarabine acts by inhibiting ribonucleotide reductase and DNA polymerase, thereby depleting the amount of intracellular deoxynucleoside triphosphates available for DNA replication. Compared to its precursors, clofarabine has an increased resistance to deamination and phosphorolysis, and hence better stability as well as higher affinity to deoxycytidine kinase (dCyd), the rate-limiting step in nucleoside phosphorylation. Since the initiation of the first phase I study of clofarabine in 1993 in patients with hematologic and solid malignancies, clofarabine has demonstrated single-agent antitumor activity in adult acute leukemia, including acute myeloid leukemia (AML). Due to its unique properties of biochemical modulation when used in combination with other chemotherapy drugs, mainly cytarabine, combination regimens containing clofarabine have been evaluated. A review of the English literature was performed that included original articles and related reviews from the MEDLINE (PubMed) database and from abstracts based on the publication of meeting materials. This review describes the development, pharmacology and clinical activity of clofarabine, as well as its emerging role in the treatment of adult patients with AML and myelodysplastic syndrome.
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Affiliation(s)
- Hady Ghanem
- Department of Leukemia, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA
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20
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Chen L, Yin Q, Mi R, Wei X. CHAG priming regimen containing of cytarabine, aclacinomycin homoharringtonine and G-CSF for relapsed refractory acute myelogenous leukemia: a modified combination chemotherapeutic combination. Leuk Lymphoma 2013; 54:2291-3. [PMID: 23369043 DOI: 10.3109/10428194.2013.772295] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Lin Chen
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University , Zhengzhou , China
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21
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Kim I, Koh Y, Yoon SS, Park S, Kim BK, Kim DY, Lee JH, Lee KH, Cheong JW, Lee HK, Kim SH, Kim H, Joo YD, Lee SM, Won JH, Park SK, Hong DS, Kim SH, Sohn SK, Kim CS, Park E, Kim MK, Park MR, Lee JH, Min YH. Fludarabine, cytarabine, and attenuated-dose idarubicin (m-FLAI) combination therapy for elderly acute myeloid leukemia patients. Am J Hematol 2013; 88:10-5. [PMID: 23077109 DOI: 10.1002/ajh.23337] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 08/29/2012] [Accepted: 08/30/2012] [Indexed: 12/11/2022]
Abstract
We performed a phase II trial to evaluate the efficacy and safety of the modified fludarabine, cytarabine, and attenuated-dose idarubicin (m-FLAI) regimen in elderly acute myeloid leukemia (AML) patients. Elderly (≥60 years) AML patients who had not previously received chemotherapy were enrolled in the study. Patients received two consecutive cycles of m-FLAI chemotherapy as an induction. The m-FLAI regimen comprised fludarabine (25 mg/m(2) , days 1-4), cytarabine (1,000 mg/m(2) , days 1-4), and attenuated-dose idarubicin (5 mg/m(2) , days 1-3). The primary end point was complete remission (CR) rate. Secondary end points were overall survival (OS), event-free survival (EFS), and treatment-related mortality (TRM). There were 108 patients (median age 68.4 years, M:F = 64:44) enrolled in the study. CR was achieved in 56.5% of patients, and the TRM rate was 21.3%. Median OS and median EFS were 10.2 and 6.6 months, respectively. The mortality at 30 and 60 days was 15 and 21%, respectively. Performance status and comorbidity did not have prognostic value in this patient cohort. Bone marrow expression of CD117 was associated with increased EFS and OS. m-FLAI is an effective induction regimen for previously untreated AML in elderly patients. In addition, bone-marrow CD117 expression is an independent favorable prognostic factor in elderly AML patients. (ClinicalTrials.gov number, NCT01247493).
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Affiliation(s)
- Inho Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Korea
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22
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Zeidan AM, Ricklis RM, Carraway HE, Yun HD, Greer JM, Smith BD, Levis MJ, McDevitt MA, Pratz KW, Showel MM, Gladstone DE, Gore SD, Karp JE. Phase 1 dose-escalation trial of clofarabine followed by escalating dose of fractionated cyclophosphamide in adults with relapsed or refractory acute leukaemias. Br J Haematol 2012; 158:198-207. [PMID: 22594769 DOI: 10.1111/j.1365-2141.2012.09142.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Accepted: 03/23/2012] [Indexed: 11/24/2022]
Abstract
The prognosis of patients with relapsed and refractory acute leukaemia (RRAL) is very poor. Forty patients with RRAL were enroled [28 acute myeloid leukaemia (AML), 12 acute lymphoblastic leukaemia (ALL)] in this Phase 1 dose-escalation trial of daily-infused clofarabine (CLO) followed by cyclophosphamide (CY) for four consecutive days (CLO-CYx4). The median age was 48·5 years. The median number of prior regimens was 2 (range 1-5), and 6/40 patients (15%) had prior allogeneic haematopoietic stem cell transplant. 28/40 patients (70%) had adverse genetic features. 6/40 patients (15%) died within 60 d of induction (two infections, four progressive disease). The average time to neutrophil recovery (absolute neutrophil count ≥0·5 × 10(9) /l was 34 d, (range, 17-78). The overall response rate (ORR) was 33% (13/40), with seven complete remissions (18%), four complete remissions with incomplete recovery of blood counts (10%), and two partial remissions (5%). ORR was 25% (7/28), and 50% (6/12), for AML and ALL respectively. Notably, the clinical responses were independent of dose level. 7/17 patients (41%) exhibited CLO-mediated enhancement of CY-induced DNA, which was associated with, but not necessary for, improved clinical outcomes. In summary, the CLO-CYx4 regimen was well tolerated and had activity in patients with RRAL, especially relapsed ALL. Therefore, CLO-CYx4 can be considered a salvage therapy for adults with RRALs, and warrants further investigations.
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Affiliation(s)
- Amer M Zeidan
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Rebecca M Ricklis
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Hetty E Carraway
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Hyun D Yun
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Jacqueline M Greer
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - B Douglas Smith
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Mark J Levis
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Michael A McDevitt
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Keith W Pratz
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Margaret M Showel
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Douglas E Gladstone
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Steven D Gore
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Judith E Karp
- Division of Hematologic Malignancies, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
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Faderl S, Wetzler M, Rizzieri D, Schiller G, Jagasia M, Stuart R, Ganguly S, Avigan D, Craig M, Collins R, Maris M, Kovacsovics T, Goldberg S, Seiter K, Hari P, Greiner J, Vey N, Recher C, Ravandi F, Wang ES, Vasconcelles M, Huebner D, Kantarjian HM. Clofarabine plus cytarabine compared with cytarabine alone in older patients with relapsed or refractory acute myelogenous leukemia: results from the CLASSIC I Trial. J Clin Oncol 2012; 30:2492-9. [PMID: 22585697 DOI: 10.1200/jco.2011.37.9743] [Citation(s) in RCA: 149] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To compare the receipt of clofarabine plus cytarabine (Clo+Ara-C arm) with cytarabine (Ara-C arm) in patients ≥ 55 years old with refractory or relapsed acute myelogenous leukemia (AML). PATIENTS AND METHODS Patients were randomly assigned to receive either clofarabine (Clo) 40 mg/m(2) or a placebo followed by Ara-C 1 g/m(2) for five consecutive days. The primary end point was overall survival (OS). Secondary end points included event-free survival (EFS), 4-month EFS, overall remission rate (ORR; complete remission [CR] plus CR with incomplete peripheral blood count recovery), disease-free survival (DFS), duration of remission (DOR), and safety. RESULTS Among 320 patients with confirmed AML (median age, 67 years), the median OS was 6.6 months in the Clo+Ara-C arm and 6.3 months in the Ara-C arm (hazard ratio [HR], 1.00; 95% CI, 0.78 to 1.28; P = 1.00). The ORR was 46.9% in the Clo+Ara-C arm (35.2% CR) versus 22.9% in the Ara-C arm (17.8% CR; P < .01). EFS (HR: 0.63; 95% CI, 0.49 to 0.80; P < .01) and 4-month EFS (37.7% v 16.6%; P < .01) favored the Clo+Ara-C arm compared with Ara-C arm, respectively. DFS and DOR were similar in both arms. Overall 30-day mortality was 16% and 5% for CLO+Ara-C and Ara-C arms, respectively. In the Clo+Ara-C and Ara-C arms, the most common grade 3 to 4 toxicities were febrile neutropenia (47% v 35%, respectively), hypokalemia (18% v 11%, respectively), thrombocytopenia (16% v 17%, respectively), pneumonia (14% v 10%, respectively), anemia (13% v 0%, respectively), neutropenia (11% v 9%, respectively), increased AST (11% v 2%, respectively), and increased ALT (10% v 3%, respectively). CONCLUSION Although the primary end point of OS did not differ between arms, Clo+Ara-C significantly improved response rates and EFS. Study follow-up continues, and the role of clofarabine in the treatment of adult patients with AML continues to be investigated.
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Affiliation(s)
- Stefan Faderl
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Tsykunova G, Reikvam H, Ahmed AB, Nepstad I, Gjertsen BT, Bruserud Ø. Targeting of polo-like kinases and their cross talk with Aurora kinases--possible therapeutic strategies in human acute myeloid leukemia? Expert Opin Investig Drugs 2012; 21:587-603. [PMID: 22424119 DOI: 10.1517/13543784.2012.668525] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Five human polo-like kinases (PLKs) have been identified, and PLK1 - 4 seem to interact with Aurora kinases and act as cell cycle regulators in both normal and malignant human cells. AREAS COVERED The present review describes i) experimental evidence for a role for PLKs and Aurora kinases in human leukemogenesis and ii) the results from clinical studies of PLK and Aurora kinase inhibitors in the treatment of human acute myeloid leukemia (AML). The review was based on searches in the PubMed and the ClinicalTrials.gov databases. These inhibitors have antiproliferative and proapoptotic effects in AML cells. Hematological and gastrointestinal toxicities are frequently dose limiting, and this may limit the use of these agents in combination with conventional AML therapy. Aurora kinase inhibitors seem to be most effective for patients with high expression of the target kinases, and the same may be true for PLK inhibitors. EXPERT OPINION PLK inhibition is a promising strategy for the treatment of AML. Future clinical studies have to clarify i) whether this strategy is most effective for certain subsets of patients; ii) whether multikinase inhibitors targeting several cell cycle regulators should be preferred; and iii) how this therapeutic strategy eventually should be combined with conventional antileukemic chemotherapy.
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Affiliation(s)
- Galina Tsykunova
- Haukeland University Hospital, Division for Haematology, Department of Medicine, Bergen, Norway
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Essack M, Bajic VB, Archer JA. Recently confirmed apoptosis-inducing lead compounds isolated from marine sponge of potential relevance in cancer treatment. Mar Drugs 2011; 9:1580-1606. [PMID: 22131960 PMCID: PMC3225937 DOI: 10.3390/md9091580] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Revised: 08/31/2011] [Accepted: 09/07/2011] [Indexed: 01/23/2023] Open
Abstract
Despite intense efforts to develop non-cytotoxic anticancer treatments, effective agents are still not available. Therefore, novel apoptosis-inducing drug leads that may be developed into effective targeted cancer therapies are of interest to the cancer research community. Targeted cancer therapies affect specific aberrant apoptotic pathways that characterize different cancer types and, for this reason, it is a more desirable type of therapy than chemotherapy or radiotherapy, as it is less harmful to normal cells. In this regard, marine sponge derived metabolites that induce apoptosis continue to be a promising source of new drug leads for cancer treatments. A PubMed query from 01/01/2005 to 31/01/2011 combined with hand-curation of the retrieved articles allowed for the identification of 39 recently confirmed apoptosis-inducing anticancer lead compounds isolated from the marine sponge that are selectively discussed in this review.
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Affiliation(s)
| | | | - John A.C. Archer
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +966-544-700-701; Fax: +966-(2)-802-0127
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