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Britto J, Holbrook A, Sun H, Cserti-Gazdewich C, Prokopchuk-Gauk O, Hsia C, Khamisa K, Yenson PR, Sholzberg M, Olney HJ, Shivakumar S, Jones D, Merkeley H, Costello J, Jamula E, Arnold DM. Thrombopoietin Receptor Agonists and Other Second-Line Therapies for Immune Thrombocytopenia: A Narrative Review With a Focus on Drug Access in Canada. CLIN INVEST MED 2024; 47:13-22. [PMID: 38546381 DOI: 10.3138/cim-2024-2569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
INTRODUCTION Immune thrombocytopenia (ITP) is an autoimmune disease characterized by low platelet counts and increased risk of bleeding. After corticosteroids with or without intravenous immune globulin (first-line treatment), second-line treatment options include rituximab, splenectomy, thrombopoietin receptor agonists (TPO-RAs), and fostamatinib. In Canada, the choice of second-line therapy is influenced by access to medications. The goals of this narrative review are to 1) summarize the evidence for the use of TPO-RAs and other second-line therapies in ITP and 2) highlight differences in public funding criteria for TPO-RAs across provinces and territories in Canada. METHODS We conducted a literature review of second-line therapies for ITP. We solicited information on public funding programs for TPO-RAs in Canada from health care providers, pharmacists, and provincial ministries of health. RESULTS Head-to-head trials involving TPO-RAs, rituximab, splenectomy, and fostamatinib are lacking. There is substantial evidence of effect for TPO-RAs in improving platelet count levels, health-related quality of life, bleeding, and fatigue from placebo-controlled trials and observational studies; however, access to TPO-RAs through provincial funding programs in Canada is variable. Splenectomy failure is a prerequisite for the funding of TPO-RAs in Ontario, Manitoba, and Saskatchewan, but not in Alberta or Quebec. Other provinces either do not have access to public funding or funding is provided on a case-by-case basis. DISCUSSION TPO-RAs are effective second-line therapies for the treatment of ITP; however, access is variable across Canada, which results in health disparities and poor uptake of international treatment guidelines.
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Affiliation(s)
- Joanne Britto
- Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Anne Holbrook
- Department of Medicine, Division of Clinical Pharmacology and Toxicology, McMaster University, Hamilton, Ontario, Canada
| | - Haowei Sun
- Division of Hematology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Christine Cserti-Gazdewich
- Department of Medicine/Division of Hematology, University of Toronto and University Health Network, Toronto, Ontario, Canada
| | - Oksana Prokopchuk-Gauk
- Department of Pathology and Lab Medicine, University of Saskatchewan, Saskatchewan Health Authority, Canada
| | - Cyrus Hsia
- Division of Hematology, Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Karima Khamisa
- Division of Hematology, Department of Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Paul R Yenson
- Division of Hematology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Michelle Sholzberg
- Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Harold J Olney
- Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Sudeep Shivakumar
- Division of Hematology, Nova Scotia Health Authority, Halifax, NS, Canada
| | - David Jones
- Department of Hematology, Eastern Health, Memorial University, Newfoundland & Labrador, Canada
| | - Hayley Merkeley
- Division of Hematology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Jacqueline Costello
- Department of Hematology, Eastern Health, Memorial University, Newfoundland & Labrador, Canada
| | - Erin Jamula
- Michael G. DeGroote Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada
| | - Donald M Arnold
- Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
- Michael G. DeGroote Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada
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Van Remoortel H, Scheers H, Avau B, Georgsen J, Nahirniak S, Shehata N, Stanworth SJ, De Buck E, Compernolle V, Vandekerckhove P. Cost-Effectiveness of Thrombopoietin Mimetics in Patients with Thrombocytopenia: A Systematic Review. PHARMACOECONOMICS 2023:10.1007/s40273-023-01271-w. [PMID: 37145291 DOI: 10.1007/s40273-023-01271-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/23/2023] [Indexed: 05/06/2023]
Abstract
OBJECTIVES Thrombopoietin (TPO) mimetics are a potential alternative to platelet transfusion to minimize blood loss in patients with thrombocytopenia. This systematic review aimed to evaluate the cost-effectiveness of TPO mimetics, compared with not using TPO mimetics, in adult patients with thrombocytopenia. METHODS Eight databases and registries were searched for full economic evaluations (EEs) and randomized controlled trials (RCTs). Incremental cost-effectiveness ratios (ICERs) were synthesized as cost per quality-adjusted life year gained (QALY) or as cost per health outcome (e.g. bleeding event avoided). Included studies were critically appraised using the Philips reporting checklist. RESULTS Eighteen evaluations from nine different countries were included, evaluating the cost-effectiveness of TPO mimetics compared with no TPO, watch-and-rescue therapy, the standard of care, rituximab, splenectomy or platelet transfusion. ICERs varied from a dominant strategy (i.e. cost-saving and more effective), to an incremental cost per QALY/health outcome of EUR 25,000-50,000, EUR 75,000-750,000 and EUR > 1 million, to a dominated strategy (cost-increasing and less effective). Few evaluations (n = 2, 10%) addressed the four principal types of uncertainty (methodological, structural, heterogeneity and parameter). Parameter uncertainty was most frequently reported (80%), followed by heterogeneity (45%), structural uncertainty (43%) and methodological uncertainty (28%). CONCLUSIONS Cost-effectiveness of TPO mimetics in adult patients with thrombocytopenia ranged from a dominant strategy to a significant incremental cost per QALY/health outcome or a strategy that is clinically inferior and has increased costs. Future validation and tackling the uncertainty of these models with country-specific cost data and up-to-date efficacy and safety data are needed to increase the generalizability.
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Affiliation(s)
- Hans Van Remoortel
- Centre for Evidence-Based Practice, Belgian Red Cross, Mechelen, Belgium.
- Department of Public Health and Primary Care, Leuven Institute for Healthcare Policy, KU Leuven, Leuven, Belgium.
| | - Hans Scheers
- Centre for Evidence-Based Practice, Belgian Red Cross, Mechelen, Belgium
- Department of Public Health and Primary Care, Leuven Institute for Healthcare Policy, KU Leuven, Leuven, Belgium
| | - Bert Avau
- Centre for Evidence-Based Practice, Belgian Red Cross, Mechelen, Belgium
| | - Jørgen Georgsen
- Department of Clinical Immunology, South Danish Transfusion Service and Tissue Center, Odense University Hospital, Odense, Denmark
| | - Susan Nahirniak
- Faculty of Medicine, University of Alberta, Edmonton, Canada
- Transfusion and Transplantation Medicine, Alberta Precision Laboratories, Alberta, Canada
| | - Nadine Shehata
- Departments of Medicine, Laboratory Medicine and Pathobiology, Institute of Health Policy Management and Evaluation, University of Toronto, Mount Sinai Hospital, Toronto, Canada
| | - Simon J Stanworth
- Transfusion Medicine, NHS Blood and Transplant, Oxford, UK
- Radcliffe Department of Medicine, University of Oxford, NIHR Oxford Biomedical Research Centre, Oxford, UK
- Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Emmy De Buck
- Centre for Evidence-Based Practice, Belgian Red Cross, Mechelen, Belgium
- Department of Public Health and Primary Care, Leuven Institute for Healthcare Policy, KU Leuven, Leuven, Belgium
| | - Veerle Compernolle
- Blood Services, Belgian Red Cross, Mechelen, Belgium
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Philippe Vandekerckhove
- Department of Public Health and Primary Care, Leuven Institute for Healthcare Policy, KU Leuven, Leuven, Belgium
- Belgian Red Cross, Mechelen, Belgium
- Division of Epidemiology and Biostatistics, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa
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Matthijsse S, Andersson FL, Gargano M, Yip Sonderegger YL. Cost-effectiveness analysis of carbetocin versus oxytocin for the prevention of postpartum hemorrhage following vaginal birth in the United Kingdom. J Med Econ 2022; 25:129-137. [PMID: 35007465 DOI: 10.1080/13696998.2022.2027669] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AIMS To assess the cost-effectiveness of carbetocin versus oxytocin for the prevention of postpartum hemorrhage (PPH) following vaginal birth from the perspective of the UK National Health Service (NHS). MATERIALS AND METHODS A decision tree model was designed to analyze the cost per PPH event avoided associated with utilizing carbetocin versus oxytocin for prophylactic treatment of PPH in women following vaginal birth from a UK perspective. It modelled the potential for women to require an additional uterotonic after prophylaxis, and to still experience a PPH event and receive associated treatment. Inpatient recovery and follow-up periods post-PPH were also included in the model. Costs associated with drug acquisition and administration, PPH management (i.e. additional staffing and possible operating theater and high dependency unit utilization), inpatient hospitalization, and follow-up visits were all considered. Adverse event management costs were not included. Resource utilization varied depending on the severity of the PPH event (as defined by the amount of blood lost). PPH events avoided were estimated. In an exploratory analysis, quality adjusted life years (QALYs) were estimated as well. RESULTS In the deterministic base case, costs were £55 lower and PPH events were 0.0342 lower per woman with carbetocin use compared to oxytocin use. Across the cohort of 100 women the reduction in PPH events led to the largest cost savings (£4,233 saved) out of all cost categories, with total cost savings of £5,495. Carbetocin utilization amongst the entire cohort led to 3.42 avoided PPH events compared to oxytocin utilization, comprised of 3.03 fewer mild/moderate PPH events and 0.39 fewer severe PPH events. Carbetocin utilization led to 0.0001 additional QALYs per woman. CONCLUSION Carbetocin utilization leads to lower prophylactic treatment costs and less PPH events versus oxytocin when utilized for the prevention of PPH following vaginal birth in the UK.
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Cost-effectiveness of eltrombopag versus intravenous immunoglobulin for the perioperative management of immune thrombocytopenia. Blood Adv 2021; 6:785-792. [PMID: 34781363 PMCID: PMC8945289 DOI: 10.1182/bloodadvances.2021005627] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 10/19/2021] [Indexed: 01/19/2023] Open
Abstract
Compared with IVIG, eltrombopag was noninferior and less costly for the perioperative management of adult patients with ITP. Direct cost of the eltrombopag or IVIG was the main driver of overall cost for the perioperative management of ITP.
Eltrombopag has been shown to be noninferior to intravenous immunoglobulin (IVIG) for improving perioperative platelet counts in patients with immune thrombocytopenia (ITP) in a randomized trial; thus, cost is an important factor for treatment and policy decisions. We used patient-level data from the trial to conduct a cost-effectiveness analysis comparing perioperative eltrombopag 50 mg daily starting dose, with IVIG 1 or 2 g/kg (according to local practice) from a Canadian public health care payer’s perspective over the observation period, from preoperative day 21 to postoperative day 28. Resource utilization data were obtained from the trial data (eltrombopag, n = 38; IVIG, n = 36), and unit costs were collected from the Ontario Schedule of Benefits, Ontario Drug Formulary, and secondary sources. All costs were adjusted to 2020 Canadian dollars. We calculated the incremental cost per patient for all patients randomized. Uncertainty was addressed using nonparametric bootstrapping. The use of perioperative eltrombopag for patients with ITP resulted in a cost-saving of $413 Canadian per patient. Compared with IVIG, the probability of eltrombopag being cost effective was 70% even with no willingness to pay. In a sensitivity analysis based on IVIG dose, we found that with the higher dose of IVIG (2 g/kg), eltrombopag saved $2,714 per patient, whereas with the lower dose of IVIG (1 g/kg), eltrombopag had a higher mean cost of $562 per patient. In summary, based on data from the randomized trial that demonstrated noninferiority, the use of eltrombopag for the management of ITP in the perioperative setting was less costly than IVIG.
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Grainger JD, Kühne T, Hippenmeyer J, Cooper N. Romiplostim in children with newly diagnosed or persistent primary immune thrombocytopenia. Ann Hematol 2021; 100:2143-2154. [PMID: 34308495 PMCID: PMC8310729 DOI: 10.1007/s00277-021-04590-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/28/2021] [Indexed: 01/19/2023]
Abstract
Immune thrombocytopenia (ITP) is a disease of heterogenous origin characterized by low platelet counts and an increased bleeding tendency. Three disease phases have been described: newly diagnosed (≤ 3 months after diagnosis), persistent (> 3-12 months after diagnosis), and chronic (> 12 months after diagnosis). The majority of children with ITP have short-lived disease and will not need treatment. For children with newly diagnosed ITP, who have increased bleeding symptoms, short courses of steroids are recommended. In children who do not respond to first-line treatment or who become steroid dependent, thrombopoietin receptor agonists (TPO-RAs) are recommended because of their efficacy and safety profiles. In this narrative review, we evaluate the available evidence on the use of the TPO-RA romiplostim to treat children with newly diagnosed or persistent ITP and identify data from five clinical trials, five real-world studies, and a case report. While the data are more limited for children with newly diagnosed ITP than for persistent ITP, the collective body of evidence suggests that romiplostim is efficacious in increasing platelet counts in children with newly diagnosed or persistent ITP and may result in long-lasting treatment-free responses in some patients. Furthermore, romiplostim was found to be well tolerated in the identified studies. Collectively, the data suggest that earlier treatment with romiplostim may help children to avoid the side effects associated with corticosteroid use and reduce the need for subsequent treatment.
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Affiliation(s)
- John D Grainger
- Department of Haematology, University of Manchester, Royal Manchester Children's Hospital, Manchester, UK.
| | - Thomas Kühne
- Oncology/Hematology, University Children's Hospital Basel, Basel, Switzerland
| | | | - Nichola Cooper
- Centre for Haematology, Department of Immunology and Inflammation, Imperial College London, London, UK
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Pei R, Shi Y, Lv S, Dai T, Zhang F, Liu S, Wu B. Nivolumab vs Pembrolizumab for Treatment of US Patients With Platinum-Refractory Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma: A Network Meta-analysis and Cost-effectiveness Analysis. JAMA Netw Open 2021; 4:e218065. [PMID: 33956130 PMCID: PMC8103222 DOI: 10.1001/jamanetworkopen.2021.8065] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 03/09/2021] [Indexed: 12/12/2022] Open
Abstract
Importance Nivolumab and pembrolizumab are approved for treating platinum-refractory recurrent or metastatic head and neck squamous cell carcinoma (R/M HNSCC). Physicians and patients are uncertain which drug is preferable, rendering a cost-effectiveness comparison between them necessary. Objective To evaluate the cost-effectiveness of nivolumab vs pembrolizumab in treating platinum-refractory R/M HNSCC. Design, Setting, and Participants Both the network meta-analysis and cost-effectiveness analysis included patients from the CheckMate 141 and the KEYNOTE 040 phase 3 randomized clinical trials. The Checkmate 141 trial started on May 1, 2014, with the present analysis based on a September 2017 data cutoff. The KEYNOTE 040 trial started on November 17, 2014, with the present analysis based on a May 15, 2017, data cutoff. A bayesian network meta-analysis that included 856 patients was carried out, and a cost-effectiveness analysis that included 487 patients was conducted by developing a partitioned survival model, both between February and November 2020. The robustness of the model was assessed via 1-way, 2-way, and probabilistic sensitivity analyses; subgroup analyses were included; and scenario analyses were conducted to investigate the associations of dosage adjustment of nivolumab with cost-effectiveness. Main Outcomes and Measures Life-years, quality-adjusted life-years (QALYs), overall costs, and incremental cost-effectiveness ratios (ICERs) were measured. Results In the cost-effectiveness analysis that included 487 patients, for US health care payers, when nivolumab was administered based on patient weight (3 mg/kg biweekly), at a willingness-to-pay (WTP) threshold of $100 000 per QALY, the probability of nivolumab being cost-effective compared with pembrolizumab was 56%; at a WTP threshold of $150 000 per QALY, the probability was 62%. When nivolumab was administered at a fixed dose of 240 mg biweekly or 480 mg monthly, at a WTP threshold of $100 000 per QALY, the probability of nivolumab being cost-effective was 42% to 45%; at a WTP threshold of $150 000 per QALY, the probability was 52% to 55%. Conclusions and Relevance Findings from this network meta-analysis and cost-effectiveness analysis suggest considering both WTP threshold and patient body weight when choosing between nivolumab and pembrolizumab for the treatment of patients with platinum-refractory R/M HNSCC. When the WTP threshold was $100 000 per QALY, for patients weighing less than 72 kg, nivolumab (3 mg/kg, biweekly) was considered cost-effective; otherwise, pembrolizumab was preferable. When the WTP threshold was $150 000 per QALY, nivolumab (3 mg/kg biweekly) was considered cost-effective for patients weighing less than 75 kg; otherwise, fixed-dose nivolumab (240 mg biweekly or 480 mg monthly) provided more cost savings.
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Affiliation(s)
- Rui Pei
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Hunan Institute of Pharmacy Practice and Clinical Research, Changsha, Hunan, China
- Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yin Shi
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Hunan Institute of Pharmacy Practice and Clinical Research, Changsha, Hunan, China
- Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shuhe Lv
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Hunan Institute of Pharmacy Practice and Clinical Research, Changsha, Hunan, China
- Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Tingting Dai
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Hunan Institute of Pharmacy Practice and Clinical Research, Changsha, Hunan, China
- Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fengyu Zhang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Hunan Institute of Pharmacy Practice and Clinical Research, Changsha, Hunan, China
- Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shao Liu
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Hunan Institute of Pharmacy Practice and Clinical Research, Changsha, Hunan, China
- Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Bin Wu
- Medical Decision and Economic Group, Department of Pharmacy, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
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Tremblay G, Dolph M, Bhor M, Said Q, Roy A, Elliott B, Briggs A. Cost-consequence model comparing eltrombopag and romiplostim in pediatric patients with chronic immune thrombocytopenia. CLINICOECONOMICS AND OUTCOMES RESEARCH 2018; 10:715-721. [PMID: 30464564 PMCID: PMC6223346 DOI: 10.2147/ceor.s177338] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Background Immune thrombocytopenia (ITP) is an auto-immune disorder characterized by enhanced platelet destruction and, subsequently, the potential for increased bleeding. Thrombopoietin receptor (TPO-R) agonists have recently emerged as promising therapies for ITP patients who are refractory to other treatments. While eltrombopag (EPAG) is the only TPO-R agonist US Food and Drug Administration approved for use in pediatric patients, romiplostin (ROMI) has been used in Phase III clinical studies. Methods A cost-consequence model (CCM) was developed to evaluate the costs of EPAG, ROMI, and watch-and-rescue (W&R) in relation to their respective treatment outcomes in previously-treated pediatric chronic ITP (cITP) over a 26-week time horizon. The costs of drugs, administration, routine care, rescue medications, adverse events, and mortality were included. Data on platelet count response rate, bleeding events, and adverse events were derived from all relevant identified Phase III-registered clinical trials, health outcomes were compared via indirect treatment comparison. Results The overall estimated cost of EPAG per patient was US$66,550, compared to US$101,056 for ROMI and US$32,720 for W&R. EPAG's lower cost compared to ROMI was largely due to lower drug costs (US$62,202 vs US$84,396), administration costs (US$0 vs US$1,955), and significantly lower costs due to severe bleeding (US$354 vs US$10,191). When assessing cost per severe bleeding event avoided, EPAG was dominant over ROMI (less expensive and more effective). EPAG was again dominant over ROMI when assessing the cost per responder and per bleeding event (any grade). Sensitivity analysis was consistent with the base case findings. Conclusion EPAG was the preferred TPO-R agonist to treat cITP when indirectly compared to ROMI, largely driven by its favorable severe bleeding outcomes and lower drug and administration costs.
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Affiliation(s)
| | - Mike Dolph
- Health Economics, Purple Squirrel Economics, New York, NY, USA,
| | - Menaka Bhor
- Health Economics and Outcomes Research, Novartis Pharmaceuticals, East Hanover, NJ, USA
| | - Qayyim Said
- Health Economics and Outcomes Research, Novartis Pharmaceuticals, East Hanover, NJ, USA
| | - Anuja Roy
- Health Economics and Outcomes Research, Novartis Pharmaceuticals, East Hanover, NJ, USA
| | - Brian Elliott
- Hematology, Novartis Pharmaceuticals, East Hanover, NJ, USA
| | - Andrew Briggs
- Health Economics and Health Technology Assessment, University of Glasgow, Glasgow, Scotland, UK
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Tremblay G, Dolph M, Bhor M, Said Q, Elliott B, Briggs A. Cost-consequence model comparing eltrombopag versus romiplostim for adult patients with chronic immune thrombocytopenia. CLINICOECONOMICS AND OUTCOMES RESEARCH 2018; 10:705-713. [PMID: 30464563 PMCID: PMC6219311 DOI: 10.2147/ceor.s177324] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Background Thrombopoietin-receptor agonists eltrombopag (EPAG) and romiplostim (ROMI) are treatment options for adults with chronic immune thrombocytopenia (cITP) who have had an insufficient response to corticosteroids or immunoglobulins. Methods A cost-consequence model was developed to evaluate the costs relative to treatment success of EPAG, ROMI, and watch and rescue (W&R) in previously treated patients. The primary endpoint assessed was severe bleeding, derived from all identified phase III registered clinical trials. Health outcomes were compared via indirect treatment comparison. Costs incorporated in the model included drug and administration, routine care, rescue medications, bleeding-related adverse events, other adverse events, and mortality costs. A trial (26-week) time horizon was used, as certain endpoints used in the model were bound to within-trial results. Results In the intent-to-treat (ITT) population, the overall estimated cost per patient for EPAG was US$66,560 compared to US$91,039 for ROMI and US$30,099 for W&R. Compared to the ITT population, the difference in cost between EPAG and ROMI was slightly greater in splenectomized patients (US$65,998 for EPAG compared to US$91,485 for ROMI) and slightly less in non-splenectomized patients (US$67,151 for EPAG compared to US$91,455 for ROMI), though the overall trend remained the same. When assessing cost per severe bleeding event avoided in the ITT population, EPAG dominated (less expensive, more effective) ROMI. Sensitivity analyses confirmed these results. Conclusion EPAG was preferred over ROMI in the treatment of cITP, largely driven by the reduction in severe bleeding events associated with its use.
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Affiliation(s)
- Gabriel Tremblay
- Department of Health Economics, Purple Squirrel Economics, New York, NY, USA,
| | - Mike Dolph
- Department of Health Economics, Purple Squirrel Economics, New York, NY, USA,
| | - Menaka Bhor
- Department of Health Economics and Outcomes Research, Novartis Pharmaceuticals, East Hanover, NJ, USA
| | - Qayyim Said
- Department of Health Economics and Outcomes Research, Novartis Pharmaceuticals, East Hanover, NJ, USA
| | - Brian Elliott
- Department of Health Economics and Outcomes Research, Novartis Pharmaceuticals, East Hanover, NJ, USA
| | - Andrew Briggs
- William R. Lindsay Chair of Health Economics, University of Glasgow, Glasgow, Scotland, UK
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Gellens R, Habchi S, Freppel S, Couret D, Iacobelli S. Romiplostim for the Emergency Management of Severe Immune Thrombocytopenia with Intracerebral Hemorrhage. Front Neurol 2018; 8:737. [PMID: 30210422 PMCID: PMC6121195 DOI: 10.3389/fneur.2017.00737] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 12/20/2017] [Indexed: 01/09/2023] Open
Abstract
Currently, we lack well-established guidelines for the emergency management of severe immune thrombocytopenia (ITP) with life-threatening bleeding. We now report the management of two patients with severe ITP, complicated by substantial cerebral hemorrhage, requiring urgent surgery due to refractory intracranial hypertension. To rapidly boost platelet counts (PCs), corticosteroids, intravenous immunoglobulin, and iterative platelet transfusions were given; all were ineffectual. Romiplostim, a thrombopoietin receptor agonist, was then administered as an "on demand therapy," with the result that a rapid and sustained increase of PCs was achieved, thus allowing for postoperative hemostasis. Both patients recovered good neurological condition, suggesting the potential utility of romiplostim, in combined therapy, for the emergency management of severe ITP.
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Affiliation(s)
- Romain Gellens
- Neurocritical Care Unit, Centre Hospitalier Universitaire Sud Réunion, Saint-Pierre, France
| | - Sabrina Habchi
- Neurocritical Care Unit, Centre Hospitalier Universitaire Sud Réunion, Saint-Pierre, France
| | - Sebastien Freppel
- Department of Neurosurgery, Centre Hospitalier Universitaire Sud Réunion, Saint-Pierre, France
| | - David Couret
- Neurocritical Care Unit, Centre Hospitalier Universitaire Sud Réunion, Saint-Pierre, France.,INSERM, UMR 1188 Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), plateforme CYROI, Sainte Clotilde, France
| | - Silvia Iacobelli
- Centre d'Études Périnatales de l'Océan Indien (CEPOI) - EA 7388, Centre Hospitalier Universitaire Sud Réunion, Saint-Pierre, France.,Pediatric and neonatal intensive care unit, Centre Hospitalier Universitaire Sud Réunion, Saint-Pierre, France
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10
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Cost of Bleeding-related Episodes in Adult Patients With Primary Immune Thrombocytopenia: A Population-based Retrospective Cohort Study of Administrative Claims Data for Commercial Payers in the United States. Clin Ther 2017; 39:603-609.e1. [DOI: 10.1016/j.clinthera.2017.01.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 01/10/2017] [Accepted: 01/11/2017] [Indexed: 12/23/2022]
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van der Nelson HA, Draycott T, Siassakos D, Yau CW, Hatswell AJ. Carbetocin versus oxytocin for prevention of post-partum haemorrhage at caesarean section in the United Kingdom: An economic impact analysis. Eur J Obstet Gynecol Reprod Biol 2017; 210:286-291. [DOI: 10.1016/j.ejogrb.2017.01.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 12/16/2016] [Accepted: 01/02/2017] [Indexed: 11/25/2022]
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12
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Affiliation(s)
- Abdulgabar Salama
- Charité - Universitätsmedizin Berlin, Germany - Institute of Transfusion Medicine, Berlin, Germany
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13
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Zeller MP, Heddle NM, Kelton JG, Hamilton K, Wang G, Sholapur N, Carruthers J, Hsia C, Blais N, Toltl L, Hamm C, Pearson MA, Arnold DM. Effect of a thrombopoietin receptor agonist on use of intravenous immune globulin in patients with immune thrombocytopenia. Transfusion 2015; 56:73-9. [DOI: 10.1111/trf.13336] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/26/2015] [Accepted: 07/22/2015] [Indexed: 01/11/2023]
Affiliation(s)
- Michelle P. Zeller
- Department of Medicine Michael G. DeGroote School of Medicine; McMaster University; Hamilton Ontario
- Canadian Blood Services
| | - Nancy M. Heddle
- Department of Medicine Michael G. DeGroote School of Medicine; McMaster University; Hamilton Ontario
- McMaster Transfusion Research Program; Hamilton Ontario Canada
| | - John G. Kelton
- Department of Medicine Michael G. DeGroote School of Medicine; McMaster University; Hamilton Ontario
| | | | - Grace Wang
- McMaster Transfusion Research Program; Hamilton Ontario Canada
| | - Naushin Sholapur
- McMaster Transfusion Research Program; Hamilton Ontario Canada
- Health Research Methodology, Department of Clinical Epidemiology and Biostatistics; McMaster University
| | | | - Cyrus Hsia
- Department of Medicine Division of Hematology; London Health Sciences Centre; London Ontario Canada
| | - Normand Blais
- Department of Hemato-Oncology; Montreal University; Montreal Quebec Canada
| | - Lisa Toltl
- Department of Medicine Michael G. DeGroote School of Medicine; McMaster University; Hamilton Ontario
| | - Caroline Hamm
- Windsor Regional Cancer Program; Windsor Regional Hospital; Windsor Ontario Canada
| | - Marc-André Pearson
- Department of Hemato-Oncology; Montreal University; Montreal Quebec Canada
| | - Donald M. Arnold
- Department of Medicine Michael G. DeGroote School of Medicine; McMaster University; Hamilton Ontario
- Canadian Blood Services
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14
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Kikuchi K, Miyakawa Y, Ikeda S, Sato Y, Takebayashi T. Cost-effectiveness of adding rituximab to splenectomy and romiplostim for treating steroid-resistant idiopathic thrombocytopenic purpura in adults. BMC Health Serv Res 2015; 15:2. [PMID: 25609557 PMCID: PMC4307915 DOI: 10.1186/s12913-015-0681-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 01/06/2015] [Indexed: 02/05/2023] Open
Abstract
Background Idiopathic thrombocytopenic purpura (ITP) is an autoimmune disease in which the platelet count falls to <100 × 109/L. Corticosteroids are recommended as the first-line treatment, splenectomy is recommended as the second-line treatment, and thrombopoietin receptor agonists (TPO-RAs) and rituximab are recommended as the third-line treatments for ITP in Japanese ITP treatment guidelines. However, in Japan, rituximab is not eligible for reimbursement for the treatment of ITP. The cost-effectiveness of ITP treatment has not been investigated in Japan. Therefore, in this study, the cost-effectiveness of adding rituximab treatment to the existing treatments indicated for ITP in Japan, namely splenectomy and the TPO-RA romiplostim, was investigated based on the scenario that rituximab is eligible for reimbursement in Japan as a treatment for ITP. Methods The efficacy endpoint was set as the number of years with a platelet count ≥30 × 109/L. The analysis was conducted from the healthcare payer’s perspective. If the first treatment is ineffective or relapse occurs, then the patient is given the following treatment. The analyzed treatment order consisted of three patterns: splenectomy-romiplostim (sequence 1), splenectomy-romiplostim-rituximab (sequence 2), and splenectomy-rituximab-romiplostim (sequence 3). A Markov model was built for ITP, and the analysis period was set as 2 years. The discount rate was an annual rate of 2%. Sensitivity analyses of the efficacy of splenectomy, romiplostim, and rituximab; treatment cost; and romiplostim dose were performed. Results The expected costs per patient over a 2-year period for sequences 1, 2, and 3 were USD 40,980, USD 39,822, and USD 33,551, respectively. The expected years with a platelet count ≥30 × 109/L for the three sequences were 1.75, 1.79, and 1.78 years, respectively. The sensitivity analyses illustrated that the results of the base case analysis were robust. Conclusions Adding rituximab to standard treatment for ITP (sequences 2–3) is less costly and marginally more effective than standard therapy in adults. According to the study results, if rituximab is reimbursed for the treatment of ITP in Japan, medical expenses are expected to decline.
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Affiliation(s)
- Kayoko Kikuchi
- Center for Clinical Research, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, Japan.
| | - Yoshitaka Miyakawa
- Department of General Internal Medicine, Saitama Medical University Hospital, 38 Morohongo Moroyamamachi, Irimagun, Saitama, Japan.
| | - Shunya Ikeda
- Department of Pharmaceutical Sciences, School of Pharmacy, International University of Health and Welfare, 2600-1 Kitakanemaru, Ohtawara City, Tochigi, Japan.
| | - Yuji Sato
- Center for Clinical Research, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, Japan.
| | - Toru Takebayashi
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, Japan.
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15
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Kerr J, Quinti I, Eibl M, Chapel H, Späth PJ, Sewell WAC, Salama A, van Schaik IN, Kuijpers TW, Peter HH. Is dosing of therapeutic immunoglobulins optimal? A review of a three-decade long debate in europe. Front Immunol 2014; 5:629. [PMID: 25566244 PMCID: PMC4263903 DOI: 10.3389/fimmu.2014.00629] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 11/25/2014] [Indexed: 12/13/2022] Open
Abstract
The consumption of immunoglobulins (Ig) is increasing due to better recognition of antibody deficiencies, an aging population, and new indications. This review aims to examine the various dosing regimens and research developments in the established and in some of the relevant off-label indications in Europe. The background to the current regulatory settings in Europe is provided as a backdrop for the latest developments in primary and secondary immunodeficiencies and in immunomodulatory indications. In these heterogeneous areas, clinical trials encompassing different routes of administration, varying intervals, and infusion rates are paving the way toward more individualized therapy regimens. In primary antibody deficiencies, adjustments in dosing and intervals will depend on the clinical presentation, effective IgG trough levels and IgG metabolism. Ideally, individual pharmacokinetic profiles in conjunction with the clinical phenotype could lead to highly tailored treatment. In practice, incremental dosage increases are necessary to titrate the optimal dose for more severely ill patients. Higher intravenous doses in these patients also have beneficial immunomodulatory effects beyond mere IgG replacement. Better understanding of the pharmacokinetics of Ig therapy is leading to a move away from simplistic "per kg" dosing. Defective antibody production is common in many secondary immunodeficiencies irrespective of whether the causative factor was lymphoid malignancies (established indications), certain autoimmune disorders, immunosuppressive agents, or biologics. This antibody failure, as shown by test immunization, may be amenable to treatment with replacement Ig therapy. In certain immunomodulatory settings [e.g., idiopathic thrombocytopenic purpura (ITP)], selection of patients for Ig therapy may be enhanced by relevant biomarkers in order to exclude non-responders and thus obtain higher response rates. In this review, the developments in dosing of therapeutic immunoglobulins have been limited to high and some medium priority indications such as ITP, Kawasaki' disease, Guillain-Barré syndrome, chronic inflammatory demyelinating polyradiculoneuropathy, myasthenia gravis, multifocal motor neuropathy, fetal alloimmune thrombocytopenia, fetal hemolytic anemia, and dermatological diseases.
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Affiliation(s)
- Jacqueline Kerr
- Section Poly- and Monoclonal Antibodies, Paul Ehrlich Institut, Langen, Germany
| | - Isabella Quinti
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Helen Chapel
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Peter J. Späth
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | | | - Abdulgabar Salama
- Zentrum für Transfusionsmedizin u. Zelltherapie, Charité, Berlin, Germany
| | - Ivo N. van Schaik
- Department of Neurology, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, Netherlands
| | - Taco W. Kuijpers
- Department of Pediatric Hematology, Immunology and Infectious disease, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, Netherlands
| | - Hans-Hartmut Peter
- Centrum für chronische Immunodeficienz (CCI), University Medical Centre, University of Freiburg, Freiburg im Breisgau, Germany
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16
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[Cost-per-responder analysis comparing romiplostim to rituximab in the treatment of adult primary immune thrombocytopenia in Spain]. Med Clin (Barc) 2014; 144:389-96. [PMID: 24565604 DOI: 10.1016/j.medcli.2013.11.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 11/19/2013] [Accepted: 11/28/2013] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVE Romiplostim, a thrombopoietin-receptor agonist, is approved for second-line use in idiopathic thrombocytopenic purpura (ITP) patients where surgery is contraindicated. Anti-CD20 rituximab, an immunosuppressant, is currently used off-label. This analysis compared the cost per responder for romiplostim versus rituximab in Spain. MATERIALS AND METHOD A decision analytic model was constructed to estimate the 6-month cost per responding patient (achieving a platelet count≥50×10(9)/l) according to the most robust published data. A systematic literature review was performed to extract response rates from phase 3 randomized controlled trials. Romiplostim patients received weekly injections; rituximab patients received 4 weekly intravenous infusions. Medical resource costs were obtained from Spanish reimbursement lists. Treatment non-responders incurred bleeding-related event (BRE) management costs as reported in clinical trials. Medical resource utilization and clinical practice were based on Spanish treatment guidelines and validated by local clinical experts. RESULTS The literature review identified phase 3 romiplostim trials with a response rate of 83%. Due to a lack of phase 3 controlled rituximab trials, a systematic review of studies was selected as the best source, reporting a response rate of 62.5%. The mean cost per patient for romiplostim was €16,289 and €13,459 for rituximab. Rituximab resulted in a 10% higher cost per responder (€21,535 versus €19,625 for romiplostim). Romiplostim use reduced drug administration, intravenous immunoglobulin, and bleeding-related costs compared to rituximab. CONCLUSIONS Due to its high level of efficacy leading to lower BRE costs, romiplostim represents an efficient use of resources for adult ITP patients in the Spanish Healthcare System.
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