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Mohanty S, Tsai JH, Ning N, Martinez A, Verma RP, Heisen M, Weaver J, Feemster KA, Chun B, Weiss TW, Schmier JK. Understanding healthcare providers' preferred attributes of pediatric pneumococcal conjugate vaccines in the United States. Hum Vaccin Immunother 2024; 20:2325745. [PMID: 38566496 PMCID: PMC10993915 DOI: 10.1080/21645515.2024.2325745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 02/28/2024] [Indexed: 04/04/2024] Open
Abstract
As higher-valent pneumococcal conjugate vaccines (PCVs) become available for pediatric populations in the US, it is important to understand healthcare provider (HCP) preferences for and acceptability of PCVs. US HCPs (pediatricians, family medicine physicians and advanced practitioners) completed an online, cross-sectional survey between March and April 2023. HCPs were eligible if they recommended or prescribed vaccines to children age <24 months, spent ≥25% of their time in direct patient care, and had ≥2 y of experience in their profession. The survey included a discrete choice experiment (DCE) in which HCPs selected preferred options from different hypothetical vaccine profiles with systematic variation in the levels of five attributes. Relative attribute importance was quantified. Among 548 HCP respondents, the median age was 43.2 y, and the majority were male (57.9%) and practiced in urban areas (69.7%). DCE results showed that attributes with the greatest impact on HCP decision-making were 1) immune response for the shared serotypes covered by PCV13 (31.4%), 2) percent of invasive pneumococcal disease (IPD) covered by vaccine serotypes (21.3%), 3) acute otitis media (AOM) label indication (20.3%), 4) effectiveness against serotype 3 (17.6%), and 5) number of serotypes in the vaccine (9.5%). Among US HCPs, the most important attribute of PCVs was comparability of immune response for PCV13 shared serotypes, while the number of serotypes was least important. Findings suggest new PCVs eliciting high immune responses for serotypes that contribute substantially to IPD burden and maintaining immunogenicity against serotypes in existing PCVs are preferred by HCPs.
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Affiliation(s)
- Salini Mohanty
- Merck Research Laboratories, Merck & Co. Inc, Rahway, NJ, USA
| | - Jui-Hua Tsai
- Evidence & Access, OPEN Health, Bethesda, MD, USA
| | - Ning Ning
- Evidence & Access, OPEN Health, Newton, MA, USA
| | - Ana Martinez
- Evidence & Access, OPEN Health, Bethesda, MD, USA
| | | | - Marieke Heisen
- Evidence & Access, OPEN Health, Rotterdam, The Netherlands
| | - Jessica Weaver
- Merck Research Laboratories, Merck & Co. Inc, Rahway, NJ, USA
| | | | - Bianca Chun
- Merck Research Laboratories, Merck & Co. Inc, Rahway, NJ, USA
| | - Thomas W. Weiss
- Merck Research Laboratories, Merck & Co. Inc, Rahway, NJ, USA
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Penton H, Jayade S, Selveindran S, Heisen M, Piketty C, Ulianov L, Jabbar-Lopez ZK, Silverberg JI, Puelles J. Assessing Response in Atopic Dermatitis: A Systematic Review of the Psychometric Performance of Measures Used in HTAs and Clinical Trials. Dermatol Ther (Heidelb) 2023; 13:2549-2571. [PMID: 37747670 PMCID: PMC10613159 DOI: 10.1007/s13555-023-01038-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/11/2023] [Indexed: 09/26/2023] Open
Abstract
INTRODUCTION Assessing treatment response is key to determining treatment value in atopic dermatitis (AD). Currently, response is assessed using various clinician- or patient-reported measures and response criteria. This variation creates a mismatch of evidence across trials, hindering the ability of clinicians, regulators, and payers to compare the efficacy of treatments. This review identifies which measures and criteria are used to determine response in clinical trials and health technology assessments (HTAs). Moreover, it systematically reviews the psychometric performance of those measures and criteria to understand which perform best in capturing patient-relevant symptoms and treatment benefits. METHODS A scoping review of clinical trials and HTAs in AD identified the following measures for inclusion: the Eczema Area and Severity Index (EASI), the Investigator's Global Assessment (IGA), the Dermatology Life Quality Index (DLQI) and the Peak Pruritus Numerical Rating Scale (PP-NRS). A systematic search was performed in MEDLINE and Embase to identify studies testing the psychometric performance of these measures in adults or adolescents with AD. RESULTS A lack of consistency in the assessment of response was observed across clinical trials and HTAs. Important gaps in psychometric evidence were identified. No content validations of the EASI and IGA in AD were found, while some quantitative studies suggested that these measures fail to capture itch, a core symptom. The PP-NRS and DLQI performed well. No studies compared the performance of different response criteria. CONCLUSION Content validation of the PP-NRS confirmed the importance of itch as a core symptom and treatment priority in AD; however, itch is not well covered in the EASI or IGA. Including the PP-NRS in clinical trials and HTAs will better capture patient-relevant benefit and response. Although various response criteria were used, no studies compared the performance of different criteria to inform which were most appropriate to compare treatments in clinical trials and HTAs.
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Affiliation(s)
| | | | | | | | | | | | | | - Jonathan I Silverberg
- Department of Dermatology, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA
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Mohanty S, Tsai JH, Ning N, Pena-Molina A, Verma RP, Heisen M, Weaver J, Feemster KA, Weiss T, Schmier J. 583. Preferences and Attitudes of Healthcare Providers towards Pneumococcal Conjugate Vaccines (PCVs) for Children Ages Two and Under in the United States (US). Open Forum Infect Dis 2022. [DOI: 10.1093/ofid/ofac492.635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract
Background
As higher-valent PCVs are currently in late-stage clinical development for pediatric use, it is important to understand how healthcare providers (HCPs) evaluate vaccine attributes when making recommendations for newer PCVs. The Advisory Committee on Immunization Practices considers feasibility and stakeholder acceptability in making vaccine recommendations; this study examined HCP preferences and attitudes towards new, higher-valent PCVs in children in the US.
Methods
Semi-structured qualitative interviews were conducted with 13 HCPs (6 pediatricians, 3 family practitioners, 3 nurse practitioners, and 1 physician assistant). US HCPs were recruited from an online panel and were eligible if they recommended or prescribed vaccines to children ≤ 2 years and spent ≥ 2 days a week providing care to pediatric patients. Providers were asked to rate a list of PCV attributes (generated by literature search) by their importance in influencing their PCV choices (1, not important; 10, most important). Interviews were recorded, transcribed, and analyzed.
Results
Among HCPs (mean age=49 years; 62% women; 38% urban, 38% suburban; mean years in practice=18 years), three main themes emerged: 1) Preferred attributes: The three most important PCV characteristics that affect HCPs’ recommendations are effectiveness against serotype 3 (rated 9.1), percent serotype coverage for invasive pneumococcal disease (IPD) (rated 8.9), and immune response for the shared PCV13 serotypes (rated 8.2). 2) PCV choice: Most respondents are interested in having more PCV options, particularly options with higher efficacy or broader serotype coverage. 3) Immunogenicity vs serotype coverage: Between a higher immune response to certain serotypes and broader serotype coverage, 46% of HCPs prefer PCVs that elicit a higher immune response but narrower coverage, 31% prefer a PCV with broader serotype coverage, and 23% require more data before making a determination.
Conclusion
Both immune response and breadth of serotype coverage may influence HCPs decisions when recommending new PCVs. Additional analyses and interviews are underway to validate these findings and further explore other factors that may influence their preferences for recommending PCVs.
Disclosures
Salini Mohanty, DrPH, MPH, Merck & Co., Inc.: Employee Jui-Hua Tsai, MD, MHS, OPEN Health: Employee of OPEN Health, which received funding from Merck & Co., Inc. to conduct this research Ning Ning, PhD, MS, Open Health: I am an employee of OPEN Health, which received funding from Merck Ana Pena-Molina, MPH, OPEN Health: I am an employee of OPEN Health, which received funding from Merck Rishi P. Verma, MPH, OPEN Health: I am an employee of OPEN Health, which received funding from Merck Marieke Heisen, PhD, MSc, OPEN Health: I am an employee of OPEN Health, which received funding from Merck Jessica Weaver, PhD, MPH, Merck & Co., Inc.: Employee Kristen A. Feemster, MD, MPH, MSHPR, FAAP, Merck & Co., Inc.: Employee Thomas Weiss, DrPH, MPH, Merck & Co., Inc.: Employee Jordana Schmier, MA, OPEN Health: I am an employee of OPEN Health, which received funding from Merck.
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Di Tanna GL, Urbich M, Wirtz HS, Potrata B, Heisen M, Bennison C, Brazier J, Globe G. Health State Utilities of Patients with Heart Failure: A Systematic Literature Review. Pharmacoeconomics 2021; 39:211-229. [PMID: 33251572 PMCID: PMC7867520 DOI: 10.1007/s40273-020-00984-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/10/2020] [Indexed: 05/07/2023]
Abstract
BACKGROUND AND OBJECTIVES New treatments and interventions are in development to address clinical needs in heart failure. To support decision making on reimbursement, cost-effectiveness analyses are frequently required. A systematic literature review was conducted to identify and summarize heart failure utility values for use in economic evaluations. METHODS Databases were searched for articles published until June 2019 that reported health utility values for patients with heart failure. Publications were reviewed with specific attention to study design; reported values were categorized according to the health states, 'chronic heart failure', 'hospitalized', and 'other acute heart failure'. Interquartile limits (25th percentile 'Q1', 75th percentile 'Q3') were calculated for health states and heart failure subgroups where there were sufficient data. RESULTS The systematic literature review identified 161 publications based on data from 142 studies. Utility values for chronic heart failure were reported by 128 publications; 39 publications published values for hospitalized and three for other acute heart failure. There was substantial heterogeneity in the specifics of the study populations, methods of elicitation, and summary statistics, which is reflected in the wide range of utility values reported. EQ-5D was the most used instrument; the interquartile limit for mean EQ-5D values for chronic heart failure was 0.64-0.72. CONCLUSIONS There is a wealth of published utility values for heart failure to support economic evaluations. Data are heterogenous owing to specificities of the study population and methodology of utility value elicitation and analysis. Choice of value(s) to support economic models must be carefully justified to ensure a robust economic analysis.
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Affiliation(s)
- Gian Luca Di Tanna
- Statistics Division, The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia.
- The George Institute for Global Health, Level 5, 1 King St, Newtown, NSW, 2042, Australia.
| | - Michael Urbich
- Amgen (Europe) GmbH, Global Value & Access, Modeling Center of Excellence, Rotkreuz, Switzerland
| | - Heidi S Wirtz
- Amgen Inc, Global Health Economics, Thousand Oaks, CA, USA
| | - Barbara Potrata
- Pharmerit - an OPEN Health company, Rotterdam, The Netherlands
| | - Marieke Heisen
- Pharmerit - an OPEN Health company, Rotterdam, The Netherlands
| | | | - John Brazier
- Health Economics and Decision Science, University of Sheffield, Sheffield, UK
| | - Gary Globe
- Amgen Inc, Global Health Economics, Thousand Oaks, CA, USA
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Mathijssen DAR, Heisen M, Clark-Wright JF, Wolfson LJ, Lu X, Carrol S, van Dijk BCP, Klijn SL, Alemayehu B. Budget impact analysis of introducing a non-reconstituted, hexavalent vaccine for pediatric immunization in the United Kingdom. Expert Rev Vaccines 2021; 19:1167-1175. [PMID: 33455489 DOI: 10.1080/14760584.2020.1873770] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Objectives: Non-reconstituted, hexavalent vaccines (HV-NRs) can facilitate clinical practice by shortening vaccine preparation and administration time and by reducing the risk of vaccination errors compared to combination vaccines requiring reconstitution. The aim of this study was to determine the budget impact of introducing an HV-NR into the United Kingdom's (UK) pediatric immunization program, which currently uses a hexavalent vaccine requiring reconstitution (HV-R). Methods: Abudget impact model covering a 10-year time horizon was developed. The target population constituted closed UK birth cohorts from 2020 to 2029. Total direct costs from the payer's perspective consisted of four main categories: vaccine acquisition and management, healthcare provider's service provision, (non-)contaminated needle-stick and sharps injury (NSI), and non-NSI vaccination error costs. The net budget impact was calculated by comparing the costs in two different market share scenarios. Results: The use of HV-NR instead of HV-R was estimated to save £9,079,927 over a 10-year time horizon (i.e. £907,993 per year). Assuming all other vaccine criteria are equivalent the budget impact was most sensitive to changes in time spent by the healthcare provider and management costs. Conclusion: Results suggest, introducing an HV-NR into the UK's pediatric immunization program is potentially cost saving for the healthcare system.
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Affiliation(s)
| | - M Heisen
- Pharmerit - an OPEN health company , Rotterdam, The Netherlands
| | | | | | - X Lu
- Merck & Co., Inc ., Kenilworth, NJ, USA
| | - S Carrol
- Sanofi Pasteur UK & Ireland , Reading, United Kingdom
| | - B C P van Dijk
- Pharmerit - an OPEN health company , Rotterdam, The Netherlands
| | - S L Klijn
- Pharmerit - an OPEN health company , Rotterdam, The Netherlands
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Urbich M, Globe G, Pantiri K, Heisen M, Bennison C, Wirtz HS, Di Tanna GL. A Systematic Review of Medical Costs Associated with Heart Failure in the USA (2014-2020). Pharmacoeconomics 2020; 38:1219-1236. [PMID: 32812149 PMCID: PMC7546989 DOI: 10.1007/s40273-020-00952-0] [Citation(s) in RCA: 161] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
BACKGROUND Heart failure presents a growing clinical and economic burden in the USA. Robust cost data on the burden of illness are critical to inform economic evaluations of new therapeutic interventions. OBJECTIVES This systematic literature review of heart failure-related costs in the USA aimed to assess the quality of the published evidence and provide a narrative synthesis of current data. METHODS Four electronic databases (MEDLINE, EMBASE, EconLit, and the Centre for Reviews and Dissemination York Database, including the NHS Economic Evaluation Database and Health Technology Assessment Database) were searched for journal articles published between January 2014 and March 2020. The review, registered with PROSPERO (CRD42019134201), was restricted to cost-of-illness studies in adults with heart failure events in the USA. RESULTS Eighty-seven studies were included, 41 of which allowed a comparison of cost estimates across studies. The annual median total medical costs for heart failure care were estimated at $24,383 per patient, with heart failure-specific hospitalizations driving costs (median $15,879 per patient). Analyses of subgroups revealed that heart failure-related costs are highly sensitive to individual patient characteristics (such as the presence of comorbidities and age) with large variations even within a subgroup. Additionally, differences in study design and a lack of standardized reporting limited the ability to compare cost estimates. The finding that costs are higher for patients with heart failure with reduced ejection fraction compared with patients with preserved ejection fraction highlights the need for differentiating among different heart failure types. CONCLUSIONS The review underpins the conclusion drawn in earlier reviews, namely that hospitalization costs are the key driver of heart failure-related costs. Analyses of subgroups provide a clearer understanding of sources of heterogeneity in cost data. While current cost estimates provide useful indications of economic burden, understanding the nuances of the data is critical to support its application.
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Affiliation(s)
- Michael Urbich
- Amgen (Europe) GmbH, Global Health Economics, Suurstoffi 22, 6343, Rotkreuz, Switzerland.
| | - Gary Globe
- Amgen Inc, Global Health Economics, Thousand Oaks, CA, USA
| | | | - Marieke Heisen
- Pharmerit - an OPEN Health Company, Rotterdam, The Netherlands
| | | | - Heidi S Wirtz
- Amgen Inc, Global Health Economics, Thousand Oaks, CA, USA
| | - Gian Luca Di Tanna
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
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Moore K, Jamil K, Verleger K, Luo L, Kebede N, Heisen M, Corman S, Leonardi R, Bakker R, Maï C, Shamseddine N, Huang X, Allegretti AS. Real-world treatment patterns and outcomes using terlipressin in 203 patients with the hepatorenal syndrome. Aliment Pharmacol Ther 2020; 52:351-358. [PMID: 32495956 PMCID: PMC7383732 DOI: 10.1111/apt.15836] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/29/2020] [Accepted: 05/13/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Hepatorenal syndrome and acute kidney injury are common complications of decompensated cirrhosis, and terlipressin is recommended as first-line vasoconstrictor therapy. However, data on its use outside of clinical trials are lacking. AIMS To assess practice patterns and outcomes around vasoconstrictor use for hepatorenal syndrome in UK hospitals. METHODS This was a multicentre chart review study. Data were extracted from medical records of patients diagnosed with hepatorenal syndrome and treated by vasoconstrictor drugs between January 2013 and December 2017 at 26 hospitals in the United Kingdom. The primary outcome was improvement of kidney function, defined as complete response (serum creatinine improved to ≤1.5 mg/dL), partial response (serum creatinine reduction of ≥20% but >1.5 mg/dL) and overall response (complete or partial response). Other outcomes included need for dialysis, mortality, liver transplantation and adverse events. RESULTS Of the 225 patients included in the analysis, 203 (90%) were treated with terlipressin (median duration, 6 days; range: 2-24 days). Mean (±standard deviation) serum creatinine at vasopressor initiation was 3.25 ± 1.64 mg/dL. Terlipressin overall response rate was 73%. Overall response was higher in patients with mild acute kidney injury (baseline serum creatinine <2.25 mg/dL), compared to those with moderate (serum creatinine ≥2.25 mg/dL and <3.5 mg/dL) or severe (serum creatinine ≥3.5 mg/dL). Ninety-day survival was 86% for all patients (93% for overall responders vs 66% for treatment nonresponders, P < 0.0001). CONCLUSION Terlipressin is the most commonly prescribed vasoconstrictor for patients with hepatorenal syndrome in the United Kingdom. Treatment with terlipressin in patients with less severe acute kidney injury (serum creatinine <2.25 mg/dL) was associated with higher treatment responses, and 90-day survival.
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Affiliation(s)
- Kevin Moore
- UCL Institute of Liver and Digestive HealthRoyal Free HospitalUniversity College LondonLondonUK
| | | | | | | | | | | | | | - Roberta Leonardi
- UCL Institute of Liver and Digestive HealthRoyal Free HospitalUniversity College LondonLondonUK
| | | | | | | | | | - Andrew S. Allegretti
- Division of NephrologyDepartment of MedicineMassachusetts General HospitalBostonMAUSA
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Piena MA, Heisen M, Wormhoudt LW, Wingerden JV, Frequin STFM, Uitdehaag BMJ. Cost-minimization analysis of alemtuzumab compared to fingolimod and natalizumab for the treatment of active relapsing-remitting multiple sclerosis in the Netherlands. J Med Econ 2018; 21:968-976. [PMID: 29911917 DOI: 10.1080/13696998.2018.1489255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
AIM In active relapsing remitting multiple sclerosis (RRMS) patients requiring second-line treatment, the Dutch National Health Care Institute (ZiN) has not stated a preference for either alemtuzumab, fingolimod, or natalizumab. The aim was to give healthcare decision-makers insight into the differences in cost accumulation over time between alemtuzumab-with a unique, non-continuous treatment schedule-and fingolimod and natalizumab for second-line treatment of active RRMS patients in the Netherlands. METHODS In line with ZiN's assessment, a cost-minimization analysis was performed from a Dutch healthcare perspective over a 5-year time horizon. Resource use was derived from hospital protocols and summaries of product characteristics, and validated by two MS specialists. Unit costs were based on national tariffs and guidelines. Robustness of the base case results was verified with multiple sensitivity and scenario analyses. RESULTS Alemtuzumab results in cost savings compared to fingolimod and natalizumab from, respectively, 3.3 and 2.8 years since treatment initiation onwards. At 5 years, total discounted costs per patient of alemtuzumab were €79,717, followed by fingolimod with €110,044 and natalizumab with €122,238, resulting in cost savings of €30,327 and €42,522 for alemtuzumab compared to fingolimod and natalizumab, respectively. Key drivers of the model are drug acquisition costs and the proportions of patients that do not require further alemtuzumab treatment after either two, three, or four courses. LIMITATIONS No treatment discontinuation and associated switching between treatments were incorporated. Consequences of JC virus seropositivity while continuing natalizumab treatment (e.g. additional monitoring) were omitted from the base case. CONCLUSION The current cost-minimization analysis demonstrates that, from the Dutch healthcare perspective, treating active RRMS patients with alemtuzumab results in cost savings compared to second-line alternatives fingolimod and natalizumab from ∼3 years since treatment initiation onwards. After 5 years, alemtuzumab's cost savings are estimated at €30k compared to fingolimod and €43k compared to natalizumab.
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Affiliation(s)
- M A Piena
- a Pharmerit International , Rotterdam , The Netherlands
| | - M Heisen
- a Pharmerit International , Rotterdam , The Netherlands
| | - L W Wormhoudt
- b Sanofi Genzyme Netherlands , Naarden , The Netherlands
| | | | - S T F M Frequin
- c Department of Neurology , St. Antonius Ziekenhuis , Nieuwegein , The Netherlands
| | - B M J Uitdehaag
- d Department of Neurology , VU University Medical Center , Amsterdam , The Netherlands
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Wilke T, Mueller S, Lee SC, Majer I, Heisen M. Drug survival of second biological DMARD therapy in patients with rheumatoid arthritis: a retrospective non-interventional cohort analysis. BMC Musculoskelet Disord 2017; 18:332. [PMID: 28764705 PMCID: PMC5540414 DOI: 10.1186/s12891-017-1684-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 07/17/2017] [Indexed: 11/21/2022] Open
Abstract
Background Since persistence to first biological disease modifying anti-rheumatic drugs (bDMARDs) is far from ideal in rheumatoid arthritis (RA) patients, many do receive a second and/or third bDMARD treatment. However, little is known about treatment persistence of the second-line bDMARD and it is specifically unknown whether the mode of action of such a treatment is associated with different persistence rates. We aimed to assess discontinuation-, re-initiation- or continuation-rates of a 2nd bDMARD therapy as well as switching-rates to a third biological DMARD (3rd bDMARD) therapy in RA patients. Method Analysis was based on German claims data (2010–2013). Patients were included if they had received at least one prescription for an anti-TNF and at least one follow-up prescription of a 2nd bDMARD different from the first anti-TNF. Patient follow-up started on the date of the first prescription for the 2nd bDMARD and lasted for 12 months or until a patient’s death. Results 2667 RA patients received at least one anti-TNF prescription. Of these, 451 patients received a second bDMARD (340 anti-TNF, mean age 52.6 years; 111 non-anti-TNF, mean age 55.9 years). During the follow-up, 28.8% vs. 11.7% of the 2nd anti-TNF vs. non-anti-TNF patients (p < 0.001) switched to a 3rd bDMARD; 14.1% vs. 19.8% (p = 0.179) discontinued without re-start; 3.8% vs.1.8% (p = 0.387) re-started and 53.5 vs. 66.7% (p < 0.050) continued therapy. Patients in the non-anti-TNF group demonstrated longer drug survival (295 days) than patients in the anti-TNF group (264 days; p = 0.016). Independent variables associated with earlier discontinuation (including re-start) or switch were prescription of an anti-TNF as 2nd bDMARD (HR = 1.512) and a higher comorbidity level (CCI, HR = 1.112), whereas previous painkiller medication (HR = 0.629) was associated with later discontinuation or switch. Conclusions Only 56.8% of RA patients continued 2nd bDMARD treatment after 12 months; 60% if re-start was included. Non-anti-TNF patients had a higher probability of continuing 2nd bDMARD therapy. Electronic supplementary material The online version of this article (doi:10.1186/s12891-017-1684-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Thomas Wilke
- IPAM, University of Wismar, Alter Holzhafen 19, 23966, Wismar, Germany.
| | - Sabrina Mueller
- IPAM, University of Wismar, Alter Holzhafen 19, 23966, Wismar, Germany.,Ingress-health, Alter Holzhafen 19, 23966, Wismar, Germany
| | - Sze Chim Lee
- IPAM, University of Wismar, Alter Holzhafen 19, 23966, Wismar, Germany
| | - Istvan Majer
- Pharmerit International, Marten Meesweg 107, 3068, Rotterdam, AV, Netherlands
| | - Marieke Heisen
- Pharmerit International, Marten Meesweg 107, 3068, Rotterdam, AV, Netherlands
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Heisen M, Treur MJ, Heemstra HE, Giesen EBW, Postma MJ. Cost-effectiveness analysis of rivaroxaban for treatment and secondary prevention of venous thromboembolism in the Netherlands. J Med Econ 2017; 20:813-824. [PMID: 28521540 DOI: 10.1080/13696998.2017.1331912] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Until recently, standard treatment of venous thromboembolism (VTE) concerned a combination of short-term low-molecular-weight heparin (LMWH) and long-term vitamin-K antagonist (VKA). Risk of bleeding and the requirement for regular anticoagulation monitoring are, however, limiting their use. Rivaroxaban is a novel oral anticoagulant associated with a significantly lower risk of major bleeds (hazard ratio = 0.54, 95% confidence interval = 0.37-0.79) compared to LMWH/VKA therapy, and does not require regular anticoagulation monitoring. AIMS To evaluate the health economic consequences of treating acute VTE patients with rivaroxaban compared to treatment with LMWH/VKA, viewed from the Dutch societal perspective. METHODS A life-time Markov model was populated with the findings of the EINSTEIN phase III clinical trial to analyze cost-effectiveness of rivaroxaban therapy in treatment and prevention of VTE from a Dutch societal perspective. Primary model outcomes were total and incremental quality-adjusted life years (QALYs), as well as life expectancy and costs. RESULTS Over a patient's lifetime, rivaroxaban was shown to be dominant, with health gains of 0.047 QALYs and cost savings of €304 compared to LMWH/VKA therapy. Dominance was robustly present in all sensitivity analyses. Major drivers of the differences between the two treatment arms were related to anticoagulation monitoring (medical costs, travel costs, and loss of productivity) and the occurrence of major bleeds. CONCLUSION Rivaroxaban treatment of patients with venous thromboembolism results in health gains and cost savings compared to LMWH/VKA therapy. This conclusion holds for the Dutch setting, both for the societal perspective, as well as the healthcare perspective.
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Affiliation(s)
| | | | | | | | - Maarten J Postma
- d Unit of PharmacoEpidemiology & PharmacoEconomics (PE2), Department of Pharmacy , University of Groningen , Groningen , The Netherlands
- e Department of Epidemiology , University Medical Center Groningen (UMCG), University of Groningen , Groningen , The Netherlands
- f Institute of Science in Healthy Aging & healthcaRE (SHARE), UMCG, University of Groningen , Groningen , The Netherlands
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Heisen M, Baeten SA, Verheggen BG, Stoelzel M, Hakimi Z, Ridder A, van Maanen R, Stolk EA. Patient and physician preferences for oral pharmacotherapy for overactive bladder: two discrete choice experiments. Curr Med Res Opin 2016; 32:787-96. [PMID: 26789823 DOI: 10.1185/03007995.2016.1142959] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE We examined patient and treating physician (general practitioners, urologists, and [uro]gynecologists) preferences for oral pharmacotherapy (antimuscarinics and beta-3 adrenoceptor agonists) for overactive bladder to gain a deeper understanding of which attributes drive their treatment decision-making and to quantify to what extent. RESEARCH DESIGN AND METHODS Two separate discrete choice experiments were developed and validated using the input of patients and physicians. The patient experiment contained the following attributes: micturition frequency, incontinence, nocturia, urgency, dry mouth, constipation, increased heart rate, and increased blood pressure. The physician experiment contained two additional attributes: coping and atrial fibrillation. Both were fielded in five European countries. To allow for preference heterogeneity, utility functions were estimated using a mixed multinomial logit model. RESULTS A total of 442 patient and 318 physician responses were analyzed. Patients ranked the attributes based on their largest potential impact on treatment value as follows: incontinence, nocturia, risk of an increased heart rate, urgency, frequency, risk of increased blood pressure, risk of constipation, and risk of dry mouth; and physicians as follows: incontinence, urgency, nocturia, frequency, risk of dry mouth, coping, risk of increased heart rate, risk of increased blood pressure, risk of atrial fibrillation, and risk of constipation. CONCLUSION AND LIMITATIONS: In their valuations, physicians put more emphasis on increasing benefits, whereas patients put more emphasis on limiting risks of side effects. Another contrast that emerged was that patients' valuations of side effects were found to be fairly insensitive to the presented risk levels (with the exception of risk of dry mouth), whereas physicians' evaluated all side effects in a risk-level dependent manner. The obtained utility functions can be used to predict whether, to what extent, and for which reasons patients and physicians would choose one oral pharmacotherapy over another, as well as to advance shared decision-making.
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Affiliation(s)
- M Heisen
- a Pharmerit International , Rotterdam , The Netherlands
| | - S A Baeten
- a Pharmerit International , Rotterdam , The Netherlands
| | - B G Verheggen
- a Pharmerit International , Rotterdam , The Netherlands
| | - M Stoelzel
- b Astellas Pharma International , Leiden , The Netherlands
| | - Z Hakimi
- b Astellas Pharma International , Leiden , The Netherlands
| | - A Ridder
- b Astellas Pharma International , Leiden , The Netherlands
| | - R van Maanen
- b Astellas Pharma International , Leiden , The Netherlands
| | - E A Stolk
- c Institute for Medical Technology Assessment and Department of Health Policy and Management , Erasmus University Rotterdam , Rotterdam , The Netherlands
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Heisen M, Treur MJ, van der Hel WS, Frequin STFM, Groot MT, Verheggen BG. Fingolimod reduces direct medical costs compared to natalizumab in patients with relapsing-remitting multiple sclerosis in The Netherlands. J Med Econ 2012; 15:1149-58. [PMID: 22737996 DOI: 10.3111/13696998.2012.707631] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To assess the costs of oral treatment with Gilenya® (fingolimod) compared to intravenous infusion of Tysabri® (natalizumab) in patients with relapsing-remitting multiple sclerosis (RRMS) in The Netherlands. METHODS A cost-minimization analysis was used to compare both treatments. The following cost categories were distinguished: drug acquisition costs, administration costs, and monitoring costs. Costs were discounted at 4%, and incremental model results were presented over a 1, 2, 5, and 10 year time horizon. The robustness of the results was determined by means of a number of deterministic univariate sensitivity analyses. Additionally, a break-even analysis was carried out to determine at which natalizumab infusion costs a cost-neutral outcome would be obtained. RESULTS Comparing fingolimod to natalizumab, the model predicted discounted incremental costs of -€2966 (95% CI: -€4209; -€1801), -€6240 (95% CI: -€8800; -€3879), -€15,328 (95% CI: -€21,539; -€9692), and -€28,287 (95% CI: -€39,661; -€17,955) over a 1, 2, 5, and 10-year time horizon, respectively. These predictions were most sensitive to changes in the costs of natalizumab infusion. Changing these costs of €255 within a range from €165-364 per infusion resulted in cost savings varying from €4031 to €8923 after 2 years. The additional break-even analysis showed that infusion costs-including aseptic preparation of the natalizumab solution-needed to be as low as the respective costs of €94 and €80 to obtain a cost neutral result after 2 and 10 years. LIMITATIONS Neither treatment discontinuation and subsequent re-initiation nor patient compliance were taken into account. As a consequence of the applied cost-minimization technique, only direct medical costs were included. CONCLUSION The present analysis showed that treatment with fingolimod resulted in considerable cost savings compared to natalizumab: starting at €2966 in the first year, increasing to a total of €28,287 after 10 years per RRMS patient in the Netherlands.
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Affiliation(s)
- M Heisen
- Pharmerit Europe, Rotterdam, The Netherlands.
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Pineda F, Heisen M, Wood A, Mustafi D, Lobregt S, Peng B, Newstead G, Buurman J, Karczmar G. TU-A-301-09: Moving towards Quantitative Breast MRI: Dynamic Contrast Media Concentration Images. Med Phys 2011. [DOI: 10.1118/1.3613099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kluza E, Heisen M, Schmid S, van der Schaft DWJ, Schiffelers RM, Storm G, ter Haar Romeny BM, Strijkers GJ, Nicolay K. Multi-parametric assessment of the anti-angiogenic effects of liposomal glucocorticoids. Angiogenesis 2011; 14:143-53. [PMID: 21225337 PMCID: PMC3102848 DOI: 10.1007/s10456-010-9198-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2010] [Accepted: 12/27/2010] [Indexed: 12/29/2022]
Abstract
Inflammation plays a prominent role in tumor growth. Anti-inflammatory drugs have therefore been proposed as anti-cancer therapeutics. In this study, we determined the anti-angiogenic activity of a single dose of liposomal prednisolone phosphate (PLP-L), by monitoring tumor vascular function and viability over a period of one week. C57BL/6 mice were inoculated subcutaneously with B16F10 melanoma cells. Six animals were PLP-L-treated and six served as control. Tumor tissue and vascular function were probed using MRI before and at three timepoints after treatment. DCE-MRI was used to determine K(trans), v(e), time-to-peak, initial slope and the fraction of non-enhancing pixels, complemented with immunohistochemistry. The apparent diffusion coefficient (ADC), T(2) and tumor size were assessed with MRI as well. PLP-L treatment resulted in smaller tumors and caused a significant drop in K(trans) 48 h post-treatment, which was maintained until one week after drug administration. However, this effect was not sufficient to significantly distinguish treated from non-treated animals. The therapy did not affect tumor tissue viability but did prevent the ADC decrease observed in the control group. No evidence for PLP-L-induced tumor vessel normalization was found on histology. Treatment with PLP-L altered tumor vascular function. This effect did not fully explain the tumor growth inhibition, suggesting a broader spectrum of PLP-L activities.
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Affiliation(s)
- Ewelina Kluza
- Department of Biomedical Engineering, Biomedical NMR, Eindhoven University of Technology, 2.03b N-laag, PO Box 513, 5600 MB, Eindhoven, The Netherlands.
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Heisen M, Fan X, Buurman J, van Riel NAW, Karczmar GS, ter Haar Romeny BM. The use of a reference tissue arterial input function with low-temporal-resolution DCE-MRI data. Phys Med Biol 2010; 55:4871-83. [DOI: 10.1088/0031-9155/55/16/016] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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