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Bewersdorf JP, Patel KK, Shallis RM, Podoltsev NA, Kewan T, Stempel J, Mendez L, Stahl M, Stein EM, Huntington SF, Goshua G, Zeidan AM. Cost-effectiveness of adding quizartinib to induction chemotherapy for patients with FLT3-mutant acute myeloid leukemia. Leuk Lymphoma 2024:1-9. [PMID: 38648559 DOI: 10.1080/10428194.2024.2344052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 04/12/2024] [Indexed: 04/25/2024]
Abstract
The FLT3 inhibitor quizartinib has been shown to improve overall survival when added to intensive induction chemotherapy ("7 + 3") in patients 18-75 years old with newly diagnosed AML harboring a FLT3-ITD mutation. However, the health economic implications of this approval are unknown. We evaluated the cost-effectiveness of quizartinib using a partitioned survival analysis model. One-way and probabilistic sensitivity analyses were conducted. In the base case scenario, the addition of quizartinib to 7 + 3 resulted in incremental costs of $289,932 compared with 7 + 3 alone. With an incremental gain of 0.84 quality-adjusted life years (QALYs) with quizartinib + 7 + 3 induction vs. 7 + 3 alone, the incremental cost-effectiveness ratio for the addition of quizartinib to standard 7 + 3 was $344,039/QALY. Only an 87% reduction in the average wholesale price of quizartinib or omitting quizartinib continuation therapy after completion of consolidation therapy and allogeneic hematopoietic cell transplant would make quizartinib a cost-effective option.
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Affiliation(s)
- Jan Philipp Bewersdorf
- Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Kishan K Patel
- Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | - Rory M Shallis
- Hematology Section, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale University, New Haven, CT
| | - Nikolai A Podoltsev
- Hematology Section, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale University, New Haven, CT
| | - Tariq Kewan
- Hematology Section, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
| | - Jessica Stempel
- Hematology Section, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
| | - Lourdes Mendez
- Hematology Section, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
| | - Maximilian Stahl
- Department of Medical Oncology, Adult Leukemia Program, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA
| | - Eytan M Stein
- Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Scott F Huntington
- Hematology Section, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale University, New Haven, CT
| | - George Goshua
- Hematology Section, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
- Center for Outcomes Research and Evaluation, Yale New Haven Hospital, New Haven, CT
| | - Amer M Zeidan
- Hematology Section, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
- Department of Medical Oncology, Adult Leukemia Program, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA
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Molica M, Perrone S, Mazzone C, Cesini L, Canichella M, de Fabritiis P. CPX-351: An Old Scheme with a New Formulation in the Treatment of High-Risk AML. Cancers (Basel) 2022; 14:cancers14122843. [PMID: 35740508 PMCID: PMC9221356 DOI: 10.3390/cancers14122843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/02/2022] [Accepted: 06/07/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Secondary AML (s-AML) including therapy-related acute myeloid leukemia (t-AML) and acute myeloid leukemia with myelodysplasia-related changes (AML-MRC) represent approximately one quarter of all AML cases. These AML subcategories are predominantly associated with advanced age and present a specific biologic profile including adverse genetics and a multidrug resistance phenotype, which often determine dramatically poor outcomes after conventional chemotherapy. In 2017, the FDA approved CPX-351, a liposomal formulation of cytarabine and daunorubicin at a fixed 5:1 molar ratio, for the treatment of adults with newly diagnosed t-AML and MRC-AML. Since the approval, many trials have been conducted or are still ongoing in order to assess the role of CPX-351 as frontline treatment in different AML subcategories, as a potential bridge to transplant or in combination with target therapies. In this review, we will discuss the current role of CPX-351 in treating these high-risk AML, focusing on how its use may potentially change the treatment paradigms of AML. Abstract Therapy-related acute myeloid leukemia (t-AML) and acute myeloid leukemia with myelodysplasia-related changes (AML-MRC) represent aggressive diseases characterized by a dismal prognosis if compared with de novo acute myeloid leukemia, especially in older patients. In these AML subsets, standard chemotherapy regimens produce poor response rates and unsatisfactory outcomes. Historically, conventional approaches consisted of an anthracycline combined with continuous infusion of cytarabine for 7 days, the “3+7” regimen. Several attempts have been conducted to ameliorate this combination regimen but inconsistent improvements in response rates and no significant changes in overall survival have been observed, until the recent introduction of targeted molecules. A liposomal formulation of traditional chemotherapy agents cytarabine and daunorubicin, termed CPX-351, enhances pharmacodynamics and synergistic effects through the maintenance of the optimal 5:1 molar ratio, which extends the treatment’s half-life and increases the bone marrow tropism of the drug. The use of CPX-351 in newly diagnosed AML-MRC and t-AML patients aged 60–75 years has demonstrated superior remission rates compared to conventional chemotherapy and improvements in event-free and overall survival. Recently, published data from a 5-year follow-up highlighted evidence that CPX-351 has the ability to produce and contribute to long-term remission and survival in older patients with newly diagnosed high-risk/secondary AML. Future perspectives include evaluation of dose intensification with CPX-351 in high-risk settings, combining this agent with targeted therapies, and better understanding the mechanism of improved responses in t-AML and AML-MRC. In this review, we will examine the role of CPX-351 inside the new AML therapeutic scenario and how its employment could potentially modify the treatment algorithm of high-risk and elderly patients with AML
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Affiliation(s)
- Matteo Molica
- Hematology Unit, S. Eugenio Hospital, ASL Roma 2, 00144 Rome, Italy; (C.M.); (L.C.); (M.C.); (P.d.F.)
- Correspondence:
| | - Salvatore Perrone
- Hematology, Polo Universitario Pontino, S.M. Goretti Hospital, 04100 Latina, Italy;
| | - Carla Mazzone
- Hematology Unit, S. Eugenio Hospital, ASL Roma 2, 00144 Rome, Italy; (C.M.); (L.C.); (M.C.); (P.d.F.)
| | - Laura Cesini
- Hematology Unit, S. Eugenio Hospital, ASL Roma 2, 00144 Rome, Italy; (C.M.); (L.C.); (M.C.); (P.d.F.)
| | - Martina Canichella
- Hematology Unit, S. Eugenio Hospital, ASL Roma 2, 00144 Rome, Italy; (C.M.); (L.C.); (M.C.); (P.d.F.)
| | - Paolo de Fabritiis
- Hematology Unit, S. Eugenio Hospital, ASL Roma 2, 00144 Rome, Italy; (C.M.); (L.C.); (M.C.); (P.d.F.)
- Department of Biomedicina and Prevenzione, Tor Vergata University, 00133 Rome, Italy
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3
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Cost-effectiveness of liposomal cytarabine/daunorubicin in patients with newly diagnosed acute myeloid leukemia. Blood 2022; 139:1766-1770. [PMID: 35298594 PMCID: PMC8931513 DOI: 10.1182/blood.2021014401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/20/2021] [Indexed: 11/20/2022] Open
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Bewersdorf JP, Patel KK, Huntington SF, Zeidan AM. Cost-effectiveness analysis of oral azacitidine maintenance therapy in acute myeloid leukemia. Blood Adv 2021; 5:4686-4690. [PMID: 34525174 PMCID: PMC8759135 DOI: 10.1182/bloodadvances.2021005472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 06/27/2021] [Indexed: 11/03/2022] Open
Affiliation(s)
- Jan Philipp Bewersdorf
- Section of Hematology, Department of Internal Medicine, Yale University School of Medicine; and
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale University, New Haven, CT
| | - Kishan K. Patel
- Section of Hematology, Department of Internal Medicine, Yale University School of Medicine; and
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale University, New Haven, CT
| | - Scott F. Huntington
- Section of Hematology, Department of Internal Medicine, Yale University School of Medicine; and
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale University, New Haven, CT
| | - Amer M. Zeidan
- Section of Hematology, Department of Internal Medicine, Yale University School of Medicine; and
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale University, New Haven, CT
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5
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Cortes JE, Lin TL, Uy GL, Ryan RJ, Faderl S, Lancet JE. Quality-adjusted Time Without Symptoms of disease or Toxicity (Q-TWiST) analysis of CPX-351 versus 7 + 3 in older adults with newly diagnosed high-risk/secondary AML. J Hematol Oncol 2021; 14:110. [PMID: 34256819 PMCID: PMC8276472 DOI: 10.1186/s13045-021-01119-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/25/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND CPX-351 (United States: Vyxeos®; Europe: Vyxeos® Liposomal), a dual-drug liposomal encapsulation of daunorubicin and cytarabine in a synergistic 1:5 molar ratio, is approved by the US FDA and the EMA for the treatment of adults with newly diagnosed therapy-related acute myeloid leukemia or acute myeloid leukemia with myelodysplasia-related changes. In a pivotal phase 3 study that evaluated 309 patients aged 60 to 75 years with newly diagnosed high-risk/secondary acute myeloid leukemia, CPX-351 significantly improved median overall survival versus conventional 7 + 3 chemotherapy (cytarabine continuous infusion for 7 days plus daunorubicin for 3 days), with a comparable safety profile. A Quality-adjusted Time Without Symptoms of disease or Toxicity (Q-TWiST) analysis of the phase 3 study was performed to compare survival quality between patients receiving CPX-351 versus conventional 7 + 3 after 5 years of follow-up. METHODS Patients were randomized 1:1 between December 20, 2012 and November 11, 2014 to receive induction with CPX-351 or 7 + 3. Survival time for each patient was partitioned into 3 health states: TOX (time with any grade 3 or 4 toxicity or prior to remission), TWiST (time in remission without relapse or grade 3 or 4 toxicity), and REL (time after relapse). Within each treatment arm, Q-TWiST was calculated by adding the mean time spent in each health state weighted by its respective quality-of-life, represented by health utility. The relative Q-TWiST gain, calculated as the difference in Q-TWiST between treatment arms divided by the mean survival of the 7 + 3 control arm, was determined in order to evaluate results in the context of other Q-TWiST analyses. RESULTS The relative Q-TWiST gain with CPX-351 versus 7 + 3 was 53.6% in the base case scenario and 39.8% among responding patients. Across various sensitivity analyses, the relative Q-TWiST gains for CPX-351 ranged from 48.0 to 57.6%, remaining well above the standard clinically important difference threshold of 15% for oncology. CONCLUSIONS This post hoc analysis demonstrates that CPX-351 improved quality-adjusted survival, further supporting the clinical benefit in patients with newly diagnosed high-risk/secondary acute myeloid leukemia. Trial registration This trial was registered on September 28, 2012 at www.clinicaltrials.gov as NCT01696084 ( https://clinicaltrials.gov/ct2/show/NCT01696084 ) and is complete.
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Affiliation(s)
- Jorge E Cortes
- Georgia Cancer Center, Augusta University, 1410 Laney Walker Rd., CN2116, Augusta, GA, 30912, USA.
| | - Tara L Lin
- University of Kansas Medical Center, Kansas City, KS, USA
| | - Geoffrey L Uy
- Washington University School of Medicine, St. Louis, MO, USA
| | | | | | - Jeffrey E Lancet
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
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Halpern AB, Othus M, Howard NP, Hendrie PC, Percival MEM, Scott BL, Gernsheimer TB, Baclig NV, Buckley SA, Cassaday RD, Hartley GA, Welch VL, Estey EH, Walter RB. Comparison of outpatient care following intensive induction versus post-remission chemotherapy for adults with acute myeloid leukemia and other high-grade myeloid neoplasms. Leuk Lymphoma 2020; 62:234-238. [PMID: 32921204 DOI: 10.1080/10428194.2020.1821008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Anna B Halpern
- Department of Medicine, Division of Hematology, University of Washington, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center/University of Washington, Seattle, WA, USA
| | - Megan Othus
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Nicholas P Howard
- Clinical Research Division, Fred Hutchinson Cancer Research Center/University of Washington, Seattle, WA, USA
| | - Paul C Hendrie
- Department of Medicine, Division of Hematology, University of Washington, Seattle, WA, USA
| | - Mary-Elizabeth M Percival
- Department of Medicine, Division of Hematology, University of Washington, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center/University of Washington, Seattle, WA, USA
| | - Bart L Scott
- Clinical Research Division, Fred Hutchinson Cancer Research Center/University of Washington, Seattle, WA, USA.,Department of Medicine, Division of Medical Oncology, University of Washington, Seattle, WA, USA
| | - Terry B Gernsheimer
- Department of Medicine, Division of Hematology, University of Washington, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center/University of Washington, Seattle, WA, USA
| | - Nikita V Baclig
- Department of Medicine, Residency Program, University of Washington, Seattle, WA, USA
| | - Sarah A Buckley
- Clinical Research Division, Fred Hutchinson Cancer Research Center/University of Washington, Seattle, WA, USA.,Department of Medicine, Residency Program, University of Washington, Seattle, WA, USA
| | - Ryan D Cassaday
- Department of Medicine, Division of Hematology, University of Washington, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center/University of Washington, Seattle, WA, USA
| | | | | | - Elihu H Estey
- Department of Medicine, Division of Hematology, University of Washington, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center/University of Washington, Seattle, WA, USA
| | - Roland B Walter
- Department of Medicine, Division of Hematology, University of Washington, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center/University of Washington, Seattle, WA, USA.,Department of Pathology, University of Washington, Seattle, WA, USA.,Department of Epidemiology, University of Washington, Seattle, WA, USA
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