scholarly journals A Cost-effectiveness Analysis of an Adjuvanted Subunit Vaccine for the Prevention of Herpes Zoster and Post-herpetic Neuralgia

2019 ◽  
Vol 6 (7) ◽  
Author(s):  
Christopher F Carpenter ◽  
Annas Aljassem ◽  
Jerry Stassinopoulos ◽  
Giovanni Pisacreta ◽  
David Hutton

Abstract Background Herpes zoster (HZ) develops in up to 50% of unvaccinated individuals, accounting for >1 million cases annually in the United States. A live attenuated HZ vaccine (LAV) is Food and Drug Administration approved for those age 50 years or older, though Advisory Committee on Immunization Practices recommendations are only for those age 60 years or older. LAV efficacy is ~70% for persons 50–59 years of age, with lower efficacy in older adults. A new 2-dose adjuvanted subunit vaccine (SUV) has >95% efficacy in persons 50–69 years of age and remains ~90% efficacious in persons vaccinated at age 70 years. Methods To estimate the relative cost-effectiveness of SUV, LAV, and no vaccination (NoV) strategies, a Markov model was developed based on published data on vaccine efficacy, durability of protection, quality of life, resource utilization, costs, and disease epidemiology. The perspective was US societal, and the cycle length was 1 year with a lifelong time horizon. SUV efficacy was estimated to wane at the same rate as LAV. Outcomes evaluated included lifetime costs, discounted life expectancy, and incremental cost-effectiveness ratios (ICERs). Results For individuals vaccinated at age 50 years, the ICER for LAV vs NoV was $118 535 per quality-adjusted life-year (QALY); at age 60 years, the ICER dropped to $42 712/QALY. SUV was more expensive but had better ICERs than LAV. At age 50, the ICER was $91 156/QALY, and it dropped to $19 300/QALY at age 60. Conclusions Vaccination with SUV was more cost-effective than LAV in all age groups studied. Vaccination with SUV at age 50 years appears cost-effective, with an ICER <$100 000/QALY.

2017 ◽  
Vol 4 (suppl_1) ◽  
pp. S416-S417
Author(s):  
Christopher Carpenter ◽  
Annas Aljassem ◽  
Jerry Stassinopoulos ◽  
Giovanni Pisacreta ◽  
David Hutton

Abstract Background Herpes zoster (HZ) develops in up to 50% of unvaccinated individuals who live to 85 years of age, accounting for more than 1 million cases of HZ annually in the United States. A live attenuated vaccine (LAV) for HZ is U.S. FDA approved for persons 50 years or older, though CDC Advisory Committee on Immunization Practices (ACIP) recommendations are only for persons beginning at age 60 years. LAV efficacy at preventing HZ is ~70% for persons 50–59 years of age, with lower efficacy in older adults, and it is efficacious in preventing post-herpetic neuralgia (PHN) beyond the HZ prevention. The efficacy of LAV after vaccination wanes over time. A new adjuvanted HZ subunit vaccine (SUV), administered as a two-dose series, has greater than 95% efficacy against HZ in persons 50–69 years of age. SUV efficacy remains greater than 90% in persons vaccinated at age 70 years and older, including the subgroup older than 80 years of age. Overall efficacy of SUV against PHN approaches 90%. The waning rate of efficacy after SUV vaccination is unknown. Methods To estimate the relative cost-effectiveness of SUV, LAV and no vaccination (NV) strategies, a Markov model was developed based on published trials and data on vaccine efficacy persistence, quality of life, resource utilization, costs and disease epidemiology. The perspective was U.S. societal, and the cycle length was one year with a lifelong time horizon. SUV efficacy was estimated for the base case to wane at the same rate as LAV, all persons were assumed to receive both doses of SUV, and the cost of SUV included both doses. Results For individuals vaccinated at age 50 years the incremental cost-effectiveness ratio (ICER) for LAV vs. NV was $142,811 per quality-adjusted life-year (QALY); at age 60 years the ICER dropped to $59,482 per QALY. The cost-effectiveness ratio of SUV approached that of LAV when the SUV cost approached $500 for persons vaccinated at age 50 years and when the cost was $400 for those vaccinated at age 60 years. The SUV cost that would result in achieving an ICER target of $100,000 per QALY for SUV vaccination vs. NV at age 50 years was $316; at age 60 years the cost was $638. Conclusion Vaccination at age 60 years with SUV was more cost-effective than LAV when SUV cost was ~$450 or less. Vaccination with SUV at age 50 years appeared to be cost-effective if SUV cost was ~$315 or less. Disclosures All authors: No reported disclosures.


2018 ◽  
Vol 41 (2) ◽  
pp. 391-398
Author(s):  
Monica Teng ◽  
Hui Jun Zhou ◽  
Liang Lin ◽  
Pang Hung Lim ◽  
Doreen Yeo ◽  
...  

Abstract Background The study evaluated the cost-effectiveness of hydrotherapy versus land-based therapy in patients with musculoskeletal disorders (MSDs) in Singapore. Methods A decision-analytic model was constructed to compare the cost-effectiveness of hydrotherapy to land-based therapy over 3 months from societal perspective. Target population comprised patients with low back pain (LBP), osteoarthritis (OA), rheumatoid arthritis (RA), total hip replacement (THR) and total knee replacement (TKR). Subgroup analyses were carried out to determine the cost-effectiveness of hydrotherapy in individual MSDs. Relative treatment effects were obtained through a systematic review of published data. Results Compared to land-based therapy, hydrotherapy was associated with an incremental cost-effectiveness ratio (ICER) of SGD 27 471 per quality-adjusted life-year (QALY) gained, which was below the willingness-to-pay threshold of SGD 70 000 per QALY (one gross domestic product per capita in Singapore in 2015). For the respective MSDs, hydrotherapy were dominant (more effective and less costly) in THR and TKR, cost-effective for LBP and RA, and not cost-effective for OA. Treatment adherence and cost of hydrotherapy were key drivers to the ICER values. Conclusions Hydrotherapy was a cost-effective rehabilitation compared to land-based therapy for a population with MSDs in Singapore. However, the benefit of hydrotherapy was not observed in patients with OA.


2020 ◽  
Author(s):  
Anne M Neilan ◽  
Elena Losina ◽  
Audrey C. Bangs ◽  
Clare Flanagan ◽  
Christopher Panella ◽  
...  

Background We projected the clinical and economic impact of alternative testing strategies on COVID-19 incidence and mortality in Massachusetts using a microsimulation model. Methods We compared five testing strategies: 1) PCR-severe-only: PCR testing only patients with severe/critical symptoms; 2) Self-screen: PCR-severe-only plus self-assessment of COVID-19-consistent symptoms with self-isolation if positive; 3) PCR-any-symptom: PCR for any COVID-19-consistent symptoms with self-isolation if positive; 4) PCR-all: PCR-any-symptom and one-time PCR for the entire population; and, 5) PCR-all-repeat: PCR-all with monthly re-testing. We examined effective reproduction numbers (Re, 0.9-2.0) at which policy conclusions would change. We used published data on disease progression and mortality, transmission, PCR sensitivity/specificity (70/100%) and costs. Model-projected outcomes included infections, deaths, tests performed, hospital-days, and costs over 180-days, as well as incremental cost-effectiveness ratios (ICERs, $/quality-adjusted life-year [QALY]). Results In all scenarios, PCR-all-repeat would lead to the best clinical outcomes and PCR-severe-only would lead to the worst; at Re 0.9, PCR-all-repeat vs. PCR-severe-only resulted in a 63% reduction in infections and a 44% reduction in deaths, but required >65-fold more tests/day with 4-fold higher costs. PCR-all-repeat had an ICER <$100,000/QALY only when Re≥1.8. At all Re values, PCR-any-symptom was cost-saving compared to other strategies. Conclusions Testing people with any COVID-19-consistent symptoms would be cost-saving compared to restricting testing to only those with symptoms severe enough to warrant hospital care. Expanding PCR testing to asymptomatic people would decrease infections, deaths, and hospitalizations. Universal screening would be cost-effective when paired with monthly retesting in settings where the COVID-19 pandemic is surging.


Circulation ◽  
2020 ◽  
Vol 141 (15) ◽  
pp. 1214-1224 ◽  
Author(s):  
Dhruv S. Kazi ◽  
Brandon K. Bellows ◽  
Suzanne J. Baron ◽  
Changyu Shen ◽  
David J. Cohen ◽  
...  

Background: In patients with transthyretin amyloid cardiomyopathy, tafamidis reduces all-cause mortality and cardiovascular hospitalizations and slows decline in quality of life compared with placebo. In May 2019, tafamidis received expedited approval from the US Food and Drug Administration as a breakthrough drug for a rare disease. However, at $225 000 per year, it is the most expensive cardiovascular drug ever launched in the United States, and its long-term cost-effectiveness and budget impact are uncertain. We therefore aimed to estimate the cost-effectiveness of tafamidis and its potential effect on US health care spending. Methods: We developed a Markov model of patients with wild-type or variant transthyretin amyloid cardiomyopathy and heart failure (mean age, 74.5 years) using inputs from the ATTR-ACT trial (Transthyretin Amyloidosis Cardiomyopathy Clinical Trial), published literature, US Food and Drug Administration review documents, healthcare claims, and national survey data. We compared no disease–specific treatment (“usual care”) with tafamidis therapy. The model reproduced 30-month survival, quality of life, and cardiovascular hospitalization rates observed in ATTR-ACT; future projections used a parametric survival model in the control arm, with constant hazards reduction in the tafamidis arm. We discounted future costs and quality-adjusted life-years by 3% annually and examined key parameter uncertainty using deterministic and probabilistic sensitivity analyses. The main outcomes were lifetime incremental cost-effectiveness ratio and annual budget impact, assessed from the US healthcare sector perspective. This study was independent of the ATTR-ACT trial sponsor. Results: Compared with usual care, tafamidis was projected to add 1.29 (95% uncertainty interval, 0.47–1.75) quality-adjusted life-years at an incremental cost of $1 135 000 (872 000–1 377 000), resulting in an incremental cost-effectiveness ratio of $880 000 (697 000–1 564 000) per quality-adjusted life-year gained. Assuming a threshold of $100 000 per quality-adjusted life-year gained and current drug price, tafamidis was cost-effective in 0% of 10 000 probabilistic simulations. A 92.6% price reduction from $225 000 to $16 563 would be necessary to make tafamidis cost-effective at $100 000/quality-adjusted life-year. Results were sensitive to assumptions related to long-term effectiveness of tafamidis. Treating all eligible patients with transthyretin amyloid cardiomyopathy in the United States with tafamidis (n=120 000) was estimated to increase annual healthcare spending by $32.3 billion. Conclusions: Treatment with tafamidis is projected to produce substantial clinical benefit but would greatly exceed conventional cost-effectiveness thresholds at the current US list price. On the basis of recent US experience with high-cost cardiovascular medications, access to and uptake of this effective therapy may be limited unless there is a large reduction in drug costs.


Author(s):  
Anne M Neilan ◽  
Elena Losina ◽  
Audrey C Bangs ◽  
Clare Flanagan ◽  
Christopher Panella ◽  
...  

Abstract Background We projected the clinical and economic impact of alternative testing strategies on COVID-19 incidence and mortality in Massachusetts using a microsimulation model. Methods We compared four testing strategies: 1) Hospitalized: PCR testing only patients with severe/critical symptoms warranting hospitalization; 2) Symptomatic: PCR for any COVID-19-consistent symptoms, with self-isolation if positive; 3) Symptomatic+asymptomatic-once: Symptomatic and one-time PCR for the entire population; and, 4) Symptomatic+asymptomatic-monthly: Symptomatic with monthly re-testing for the entire population. We examined effective reproduction numbers (Re, 0.9-2.0) at which policy conclusions would change. We assumed homogeneous mixing among the Massachusetts population (excluding those residing in long-term care facilities). We used published data on disease progression and mortality, transmission, PCR sensitivity/specificity (70/100%) and costs. Model-projected outcomes included infections, deaths, tests performed, hospital-days, and costs over 180-days, as well as incremental cost-effectiveness ratios (ICER, $/quality-adjusted life-year [QALY]). Results At Re 0.9, Symptomatic+asymptomatic-monthly vs. Hospitalized resulted in a 64% reduction in infections and a 46% reduction in deaths, but required &gt;66-fold more tests/day with 5-fold higher costs. Symptomatic+asymptomatic-monthly had an ICER &lt;$100,000/QALY only when Re ≥1.6; when test cost was ≤$3, every 14-day testing was cost-effective at all Re examined. Conclusions Testing people with any COVID-19-consistent symptoms would be cost-saving compared to testing only those whose symptoms warrant hospital care. Expanding PCR testing to asymptomatic people would decrease infections, deaths, and hospitalizations. Despite modest sensitivity, low-cost, repeat screening of the entire population could be cost-effective in all epidemic settings.


2012 ◽  
Vol 18 (3) ◽  
pp. 204 ◽  
Author(s):  
William Leung ◽  
Toni Ashton ◽  
Gregory S. Kolt ◽  
Grant M. Schofield ◽  
Nicholas Garrett ◽  
...  

This paper reports on the cost-effectiveness of pedometer-based versus time-based Green Prescriptions in improving physical activity and health-related quality of life (EQ-5D) in a randomised controlled trial of 330 low-active, community-based adults aged 65 years and over. Costs, measured in $NZ (NZ$1 = A$0.83, December 2008), comprised public and private health care costs plus exercise-related personal expenditure. Based on intention-to-treat data at 12-month follow up, the pedometer group showed a greater increase in weekly leisure walking (50.6 versus 28.1 min for the time-based group, adjusted means, P = 0.03). There were no significant between-group differences in costs. The incremental cost-effectiveness ratios, for the pedometer-based versus time-based Green Prescription, per 30 min of weekly leisure walking and per quality-adjusted life year were, (i) when including only community care costs, $115 and $3105, (ii) when including only exercise and community care costs, $130 and $3500, and (iii) for all costs, −$185 and −$4999, respectively. The cost-effectiveness acceptability curves showed that the pedometer-based compared with the time-based Green Prescription was statistically cost-effective, for the above cost categories, at the following quality-adjusted life year thresholds: (i) $30 000; (ii) $30 500; and (iii) $16 500. The additional program cost of converting one sedentary adult to an active state over a 12-month period was $667. The outcomes suggest the pedometer-based Green Prescription may be cost-effective in increasing physical activity and health-related quality of life over 12 months in previously low-active older adults.


2016 ◽  
Vol 32 (4) ◽  
pp. 233-240 ◽  
Author(s):  
Silvia Coretti ◽  
Paola Codella ◽  
Federica Romano ◽  
Matteo Ruggeri ◽  
Americo Cicchetti

Objectives:Herpes zoster (HZ) is characterized by a painful skin rash. Its main complication is postherpetic neuralgia (PHN), pain persisting or occurring after the rash onset. HZ treatment aims to reduce acute pain, impede the onset complications, and disease progression. The aim of this study was to assess the cost-effectiveness of HZ vaccination compared with no vaccination strategy, within the Italian context.Methods:The natural history of HZ and PHN was mapped through a Markov model with lifetime horizon. A population of patients aged between 60 and 79 years was hypothesized. Third party payer (Italian National Health Service, I-NHS) and societal perspectives were adopted. Data were derived from literature.Results and Conclusions:The incremental cost-effectiveness ratio of the vaccination equaled EUR 11,943 per quality-adjusted life-year (QALY) under the I-NHS perspective and EUR 11,248 per QALY under the societal perspective. Considering a cost-effectiveness threshold of EUR 30,000/QALY, the multi-way sensitivity analysis showed that vaccination is cost-effective regardless of the perspective adopted, in 99 percent of simulations.


Author(s):  
Mohamed N. M. T. Al Khayat ◽  
Job F. H. Eijsink ◽  
Maarten J. Postma ◽  
Ewoudt M. W. van de Garde ◽  
Marinus van Hulst

Abstract Objective We aimed to assess the cost-effectiveness of screening smokers and ex-smokers for lung cancer in the Netherlands. Methods A Markov model was used to evaluate the health effects and costs of lung cancer screening from the healthcare perspective. The effects and costs of ten screening scenarios with different start and stop ages of screening were examined across a lifetime horizon in a cohort of 100,000 smokers and ex- smokers 50 years and older. Results The incremental cost-effectiveness ratios (ICERs) of screening smokers and ex-smokers aged 50–60 years, 50–70 years, and 50 years and older are below the cost-effectiveness threshold of € 20,000 per quality adjusted life year (QALY) gained. Screening 50–60-year-old smokers and ex-smokers was the most cost-effective scenario with an ICER of € 14,094 per QALY gained. However, screening smokers and ex-smokers 50 years and older yielded the highest QALYs and resulted in an ICER of € 16,594 per QALY, which is below the threshold of € 20,000 per QALY. All screening scenarios compared to no screening resulted in CERs between the € 14,000 and € 16,000 per QALY gained. The efficiency frontier showed that screening smokers and ex-smokers in the age groups 70 years and older, 60–70 years, 60 years and older are excluded by extended dominance by no screening, screening smokers and ex-smokers aged 50–60 years and 50–70 years. Conclusion This study showed that lung cancer screening is cost-effective in the Netherlands.


2020 ◽  
Vol 40 (2) ◽  
pp. 193-201
Author(s):  
Jing Liu ◽  
David W Hutton ◽  
Yonghong Gu ◽  
Yao Hu ◽  
Yi Li ◽  
...  

Background: End-stage renal disease has been imposing a heavy economic burden on public health; however, few studies have been performed on the cost-effectiveness of dialysis modalities. We aim to estimate the cost-effectiveness of different dialysis modalities in China. Methods: Cost-effectiveness analyses were performed using Markov models based on published data of hemodialysis (HD) and peritoneal dialysis (PD) modalities in China. Sensitivity analyses were conducted to identify key variables influencing the results. Results: Over a 10-year time horizon, the base-case cost-effectiveness analysis indicated that PD-first absolutely dominated the HD-first option by gaining 0.13 more quality-adjusted life years (QALYs) and costing RMB ¥81,081 less. When using reported mortality of HD and PD from the United States, the PD-first option still dominated HD-first with higher QALYs and lower costs. Sensitivity analyses revealed that the results were more sensitive to the direct cost of HD, utility of HD, utility of PD, direct cost of PD, PD mortality, and HD mortality, while less sensitive to the indirect costs and transition probabilities. The HD utility needed to be at least 0.148 higher than PD utility for HD to be cost-effective. PD was about 72% likely to be considered cost-effective compared with HD, regardless of the willingness-to-pay for QALYs. Conclusion: PD appears to be more cost-effective than HD in China, and the major influential factors on the cost-effectiveness are the direct costs of HD, utility of HD, utility of PD, direct costs of PD, PD mortality, and HD mortality.


Author(s):  
Youngji Jo ◽  
Sourya Shrestha ◽  
Isabella Gomes ◽  
Suzanne Marks ◽  
Andrew Hill ◽  
...  

Abstract Background Targeted testing and treatment (TTT) for latent tuberculosis (TB) infection (LTBI) is a recommended strategy to accelerate TB reductions and further TB elimination in the United States. Evidence on cost-effectiveness of TTT for key populations can help advance this goal. Methods We used a model of TB transmission to estimate the numbers of individuals who could be tested by interferon-γ release assay and treated for LTBI with 3 months of self-administered rifapentine and isoniazid (3HP) under various TTT scenarios. Specifically, we considered rapidly scaling up TTT among people who are non–US-born, diabetic, living with human immunodeficiency virus (HIV), homeless or incarcerated in California, Florida, New York, and Texas—states where more than half of US TB cases occur. We projected costs (from the healthcare system perspective, in 2018 dollars), 30-year reductions in TB incidence, and incremental cost-effectiveness (cost per quality-adjusted life-year [QALY] gained) for TTT in each modeled population. Results The projected cost-effectiveness of TTT differed substantially by state and population, while the health impact (number of TB cases averted) was consistently greatest among non–US-born individuals. TTT was most cost-effective among persons with HIV (from $2828/QALY gained in Florida to $11 265/QALY gained in New York) and least cost-effective among people with diabetes (from $223 041/QALY gained in California to $817 753/QALY in New York). Conclusions The modeled cost-effectiveness of TTT for LTBI varies across states but was consistently greatest among people with HIV; moderate among people who are non–US-born, incarcerated, or homeless; and least cost-effective among people with diabetes.


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