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Danese MD, Fox KM, Duryea JL, Desai P, Rubin RJ. The rate, cost and outcomes of parathyroidectomy in the united states dialysis population from 2016-2018. BMC Nephrol 2022; 23:220. [PMID: 35729513 PMCID: PMC9215010 DOI: 10.1186/s12882-022-02848-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022] Open
Abstract
Background In end-stage kidney disease, patients may undergo parathyroidectomy if secondary hyperparathyroidism cannot be managed medically. This study was designed to estimate the parathyroidectomy rate in the United States (US) and to quantify changes in costs and other outcomes after parathyroidectomy. Methods This was a retrospective observational cohort study using US Renal Data System data for 2015–2018. Parathyroidectomy rates were estimated for adult hemodialysis and peritoneal dialysis patients alive at the beginning of 2016, 2017, and 2018 who were followed for a year or until parathyroidectomy, death, or transplant. Incremental differences in economic and clinical outcomes were compared before and after parathyroidectomy in adult hemodialysis and peritoneal dialysis patients who received a parathyroidectomy in 2016 and 2017. Results The rate of parathyroidectomy per 1,000
person-years decreased from 6.5 (95% CI 6.2-6.8) in 2016 to 5.3 (95% CI
5.0-5.6) in 2018. The incremental
increase in 12-month cost after versus before parathyroidectomy was $25,314
(95% CI $23,777-$27,078). By the second
month after parathyroidectomy, 58% of patients had a corrected calcium level
< 8.5 mg/dL. In the year after
parathyroidectomy (versus before), hospitalizations increased by 1.4 per
person-year (95% CI 1.3-1.5), hospital days increased by 12.1 per person-year
(95% CI 11.2-13.0), dialysis visits decreased by 5.2 per person-year (95% CI
4.4-5.9), and office visits declined by 1.3 per person-year (95% CI
1.0-1.5). The incremental rate per 1,000
person years for hematoma/bleed was 224.4 (95% CI 152.5-303.1), for vocal cord
paralysis was 124.6 (95% CI 59.1-232.1), and for seroma was 27.4 (95% CI
0.4-59.0). Conclusions Parathyroidectomy was a relatively uncommon event in the hemodialysis and peritoneal dialysis populations. The incremental cost of parathyroidectomy was mostly attributable to the cost of the parathyroidectomy hospitalization. Hypocalcemia occurred in over half of patients, and calcium and phosphate levels were reduced. Clinicians, payers, and patients should understand the potential clinical and economic outcomes when considering parathyroidectomy. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-022-02848-x.
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Affiliation(s)
- Mark D Danese
- Outcomes Insights, Inc., 30200 Agoura Road, Suite 230, Agoura Hills, CA, 91301, USA.
| | - Kathleen M Fox
- Global Health Economics, Amgen, Inc., Thousand Oaks, CA, USA
| | - Jennifer L Duryea
- Outcomes Insights, Inc., 30200 Agoura Road, Suite 230, Agoura Hills, CA, 91301, USA
| | | | - Robert J Rubin
- Division of Nephrology and Hypertension, Georgetown University, Washington, DC, USA
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Alonso-Perez E, Forné C, Soro M, Valls M, Manganelli AG, Valdivielso JM. Health Care Costs in Patients with and without Secondary Hyperparathyroidism in Spain. Adv Ther 2021; 38:5333-5344. [PMID: 34519948 DOI: 10.1007/s12325-021-01895-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 08/12/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To analyze the economic burden of secondary hyperparathyroidism (sHPT) in Spain by quantifying differences in costs of pharmacological treatments and associated cardiovascular events (CVE) between renal patients with and without sHPT. METHODS We used data collected in the NEFRONA cohort study and obtained treatment and CVE costs from the BOT PLUS database and Hospital Discharge Records in the Spanish Health System (CMBD-H), respectively. We examined data from 2445 renal patients followed during 2 years for chronic kidney disease (CKD) progression and 4 years for CVE, stratifying by presence of sHPT. Patient characteristics, administered treatments and CVE were directly extracted from NEFRONA registries. Dosage for each treatment regimen was assumed based on guidelines and multiplied by official unit costs to obtain treatment costs. Costs of CVE were based on ICD-9-CM. RESULTS Prevalence of sHPT in the cohort was 65.6% (63.6; 67.6). Average yearly pharmacological costs for patients without sHPT were 610.33€, while costs were 1483.17€ for sHPT patients (average increase of 143.0%). Two hundred three patients registered CVE, resulting in 4-year average costs of 582.57€ for non-sHPT patients compared to 941.87€ for sHPT patients (61.7% average increase). Bivariate analyses considering presence of dialysis, hypercalcemia or hyperphosphatemia and stratified by sHPT showed higher costs for sHPT patients. CONCLUSIONS These results show that sHPT is associated with substantially higher costs of both, pharmacological treatments and associated CVEs. Preventing the development of sHPT with early management in the course of CKD could possibly lead to better health outcomes and cost balance for health care systems.
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Affiliation(s)
| | - Carles Forné
- Department of Basic Medical Sciences, University of Lleida, Lleida, Spain
- Heorfy Consulting, Lleida, Spain
| | - Marco Soro
- Vifor Pharma Global HEOR, GPMA, Glattbrugg, Switzerland
| | | | | | - Jose M Valdivielso
- Vascular and Renal Translational Research Group, IRBLleida, Lleida, Spain.
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Ko WC, Liu CL, Lee JJ, Liu TP, Wu CJ, Cheng SP. Osteocalcin is an Independent Predictor for Hungry Bone Syndrome After Parathyroidectomy. World J Surg 2019; 44:795-802. [DOI: 10.1007/s00268-019-05251-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Stollenwerk B, Iannazzo S, Akehurst R, Adena M, Briggs A, Dehmel B, Parfrey P, Belozeroff V. A Decision-Analytic Model to Assess the Cost-Effectiveness of Etelcalcetide vs. Cinacalcet. PHARMACOECONOMICS 2018; 36:603-612. [PMID: 29392552 DOI: 10.1007/s40273-017-0605-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
INTRODUCTION Etelcalcetide is a novel intravenous calcimimetic for the treatment of secondary hyperparathyroidism (SHPT) in haemodialysis patients. The clinical efficacy and safety of etelcalcetide (in addition to phosphate binders and vitamin D and/or analogues [PB/VD]) was evaluated in three phase III studies, including two placebo-controlled trials and a head-to-head study versus the oral calcimimetic cinacalcet. OBJECTIVE The objective of this study was to develop a decision-analytic model for economic evaluation of etelcalcetide compared with cinacalcet. METHODS We developed a life-time Markov model including potential treatment effects on mortality, cardiovascular events, fractures, and subjects' persistence. Long-term efficacy of etelcalcetide was extrapolated from the reduction in parathyroid hormone (PTH) in the phase III trials and the available data from the outcomes study in cinacalcet (EVOLVE trial). Etelcalcetide was compared with cinacalcet, both in addition to PB/VD. We applied unit costs averaged from five European countries and a range of potential etelcalcetide pricing options assuming parity price to weekly use of cinacalcet and varying it by a 15 or 30% increase. RESULTS Compared with cinacalcet, the incremental cost-effectiveness ratio of etelcalcetide was €1,355 per QALY, €24,521 per QALY, and €47,687 per QALY for the three prices explored. The results were robust across the probabilistic and deterministic sensitivity analyses. CONCLUSIONS Our modelling approach enabled cost-utility assessment of the novel therapy for SHPT based on the observed and extrapolated data. This model can be used for local adaptations in the context of reimbursement assessment.
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Affiliation(s)
- Björn Stollenwerk
- Amgen Europe (GmbH), Dammstrasse 23, P.O. Box 1557, 6301, Zug, Switzerland.
- Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany.
| | - Sergio Iannazzo
- SIHS Health Economics Consulting, Via Sebastiano Caboto, 45, 10129, Turin, Italy
| | - Ron Akehurst
- BresMed, North Church House, 84 Queen Street, Sheffield, S1 2DW, UK
- University of Sheffield, Regent Court, 30 Regent Street, Sheffield, S1 4DA, UK
| | - Michael Adena
- Datalytics Pty Ltd, 19/12 Trevillian Quay, Kingston, ACT, 2603, Australia
| | - Andrew Briggs
- Health Economics and Health Technology Assessment, University of Glasgow, Glasgow, UK
| | - Bastian Dehmel
- Amgen Europe (GmbH), Dammstrasse 23, P.O. Box 1557, 6301, Zug, Switzerland
- Amgen Inc., One Amgen Center Drive, Thousand Oaks, CA, 91320, USA
| | - Patrick Parfrey
- Memorial University, P.O. Box 4200, St. John's, NL, A1C 5S7, Canada
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Hawley CM, Holt SG. Parathyroid hormone targets in chronic kidney disease and managing severe hyperparathyroidism. Nephrology (Carlton) 2017; 22 Suppl 2:47-50. [DOI: 10.1111/nep.13029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Carmel M Hawley
- Department Renal Medicine; Princess Alexandra Hospital; Brisbane Queensland Australia
- Department Renal Medicine; University of Queensland; Brisbane Queensland Australia
- Australasian Kidney Trials Network; University of Queensland; Brisbane Queensland Australia
- Translational Research Institute; Woolloongabba, Brisbane Queensland Australia
| | - Stephen G Holt
- Department Nephrology; The Royal Melbourne Hospital; Melbourne Victoria Australia
- Department of Medicine; The University of Melbourne; Melbourne Victoria Australia
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Belozeroff V, Chertow GM, Graham CN, Dehmel B, Parfrey PS, Briggs AH. Economic Evaluation of Cinacalcet in the United States: The EVOLVE Trial. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2015; 18:1079-1087. [PMID: 26686794 DOI: 10.1016/j.jval.2015.08.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 07/30/2015] [Accepted: 08/06/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Previous economic evaluations of cinacalcet in patients with secondary hyperparathyroidism (sHPT) relied on the combination of surrogate end points in clinical trials and epidemiologic studies. OBJECTIVES The objective was to conduct an economic evaluation of cinacalcet on the basis of the EValuation Of Cinacalcet HCl Therapy to Lower CardioVascular Events (EVOLVE) trial from a US payer perspective. METHODS We developed a semi-Markov model to assess the cost-effectiveness of cinacalcet in addition to conventional therapy, compared with conventional therapy alone, in patients with moderate-to-severe sHPT receiving hemodialysis. We used treatment effect estimates from the unadjusted intent-to-treat (ITT) analysis and prespecified covariate-adjusted ITT analysis as our main analyses. We assessed model sensitivity to variations in individual inputs and overall decision uncertainty through probabilistic sensitivity analyses. RESULTS The incremental cost-effectiveness ratio (ICER) for cinacalcet was $61,705 per life-year and $79,562 per quality-adjusted life-year (QALY) gained using the covariate-adjusted ITT analysis. Probabilistic sensitivity analysis suggested a 73.2% chance of the ICER being below a willingness-to-pay threshold of $100,000. Treatment effects from unadjusted ITT analysis yielded an ICER of $115,876 per QALY. The model was most sensitive to the treatment effect on mortality. CONCLUSIONS In the unadjusted ITT analysis, cinacalcet does not represent a cost- effective use of health care resources when applying a willingness-to-pay threshold of $100,000 per QALY. When using the covariate-adjusted ITT treatment effect, which represents the least biased estimate, however, cinacalcet is a cost-effective therapy for patients with moderate-to-severe sHPT on hemodialysis.
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Affiliation(s)
| | | | | | | | | | - Andrew H Briggs
- Health Economics & Health Technology Assessment, University of Glasgow, Glasgow, UK
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Messa P. Parathyroidectomy and patient survival in CKD patients. Nephrol Dial Transplant 2015; 30:1944-6. [PMID: 26275892 DOI: 10.1093/ndt/gfv286] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 06/29/2015] [Indexed: 12/13/2022] Open
Affiliation(s)
- Piergiorgio Messa
- Department of Medicine and Medical Specialties, Unit of Nephrology, Dialysis and Renal Transplant, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
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Davies EW, Matza LS, Worth G, Feeny DH, Kostelec J, Soroka S, Mendelssohn D, McFarlane P, Belozeroff V. Health state utilities associated with major clinical events in the context of secondary hyperparathyroidism and chronic kidney disease requiring dialysis. Health Qual Life Outcomes 2015; 13:90. [PMID: 26122041 PMCID: PMC4487205 DOI: 10.1186/s12955-015-0266-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 05/15/2015] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Patients with chronic kidney disease (CKD) and secondary hyperparathyroidism (SHPT) who require dialysis are at increased risk for cardiovascular events and bone fractures. To assist in economic evaluations, this study aimed to estimate the disutility of these events beyond the impact of CKD and SHPT. METHODS A basic one-year health state was developed describing CKD and SHPT requiring dialysis. Further health states added acute events (cardiovascular events, fractures, and surgical procedures) or chronic post-event effects. Acute health states described a year including an event, and chronic health states described a year subsequent to an event. General population participants in Canada completed time trade-off interviews from which utilities were derived. Pairwise comparisons were made between the basic state and event, and between comparable health states. RESULTS A total of 199 participants (54.8% female; mean age = 46.3 years) completed interviews. Each health state had ≥130 valuations. The mean (SD) utility of the basic health state was 0.60 (0.34). For acute events, mean utility differences versus the basic state were: myocardial infarction, -0.06; unstable angina, -0.05; peripheral vascular disease (PVD) with amputation, -0.33; PVD without amputation, -0.11; heart failure, -0.14; stroke, -0.30; hip fracture, -0.14; arm fracture, -0.04; parathyroidectomy, +0.02; kidney transplant, +0.06. Disutilities for chronic health states were: stable angina, -0.09; stroke, -0.27; PVD with amputation, -0.30; PVD without amputation, -0.12; heart failure, -0.14. CONCLUSIONS Cardiovascular events and fractures were associated with lower utility scores, suggesting a perceived decrease in quality of life beyond the impact of CKD and SHPT.
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Affiliation(s)
| | | | | | - David H Feeny
- Department of Economics, McMaster University, Hamilton, ON, Canada.
| | | | - Steven Soroka
- Department of Medicine, Dalhousie University, Halifax, NS, Canada.
| | - David Mendelssohn
- Department of Nephrology, Humber River Hospital, Toronto, ON, Canada.
| | - Philip McFarlane
- Division of Nephrology, St. Michael's Hospital, Toronto, ON, Canada.
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Ishani A, Liu J, Wetmore JB, Lowe KA, Do T, Bradbury BD, Block GA, Collins AJ. Clinical outcomes after parathyroidectomy in a nationwide cohort of patients on hemodialysis. Clin J Am Soc Nephrol 2014; 10:90-7. [PMID: 25516915 DOI: 10.2215/cjn.03520414] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES Patients receiving dialysis undergo parathyroidectomy to improve laboratory parameters in resistant hyperparathyroidism with the assumption that clinical outcomes will also improve. However, no randomized clinical trial data demonstrate the benefits of parathyroidectomy. This study aimed to evaluate clinical outcomes up to 1 year after parathyroidectomy in a nationwide sample of patients receiving hemodialysis. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Using data from the US Renal Data System, this study identified prevalent hemodialysis patients aged ≥18 years with Medicare as primary payers who underwent parathyroidectomy from 2007 to 2009. Baseline characteristics and comorbid conditions were assessed in the year preceding parathyroidectomy; clinical events were identified in the year preceding and the year after parathyroidectomy. After parathyroidectomy, patients were censored at death, loss of Medicare coverage, kidney transplant, change in dialysis modality, or 365 days. This study estimated cause-specific event rates for both periods and rate ratios comparing event rates in the postparathyroidectomy versus preparathyroidectomy periods. RESULTS Of 4435 patients who underwent parathyroidectomy, 2.0% died during the parathyroidectomy hospitalization and the 30 days after discharge. During the 30 days after discharge, 23.8% of patients were rehospitalized; 29.3% of these patients required intensive care. In the year after parathyroidectomy, hospitalizations were higher by 39%, hospital days by 58%, intensive care unit admissions by 69%, and emergency room/observation visits requiring hypocalcemia treatment by 20-fold compared with the preceding year. Cause-specific hospitalizations were higher for acute myocardial infarction (rate ratio, 1.98; 95% confidence interval, 1.60 to 2.46) and dysrhythmia (rate ratio 1.4; 95% confidence interval1.16 to 1.78); fracture rates did not differ (rate ratio 0.82; 95% confidence interval 0.6 to 1.1). CONCLUSIONS Parathyroidectomy is associated with significant morbidity in the 30 days after hospital discharge and in the year after the procedure. Awareness of clinical events will assist in developing evidence-based risk/benefit determinations for the indication for parathyroidectomy.
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Affiliation(s)
- Areef Ishani
- Chronic Disease Research Group, Minneapolis Medical Research Foundation, Minneapolis, Minnesota; Minneapolis Veterans Affairs Health Care System, Minneapolis, Minnesota; Department of Medicine, University of Minnesota, Minneapolis, Minnesota;
| | - Jiannong Liu
- Chronic Disease Research Group, Minneapolis Medical Research Foundation, Minneapolis, Minnesota
| | - James B Wetmore
- Chronic Disease Research Group, Minneapolis Medical Research Foundation, Minneapolis, Minnesota
| | - Kimberly A Lowe
- Center for Observational Research, Amgen Inc, Thousand Oaks, California; and
| | - Thy Do
- Center for Observational Research, Amgen Inc, Thousand Oaks, California; and
| | - Brian D Bradbury
- Center for Observational Research, Amgen Inc, Thousand Oaks, California; and
| | | | - Allan J Collins
- Chronic Disease Research Group, Minneapolis Medical Research Foundation, Minneapolis, Minnesota
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