New decision-making processes for the pricing of health technologies in Japan: The FY 2016/2017 pilot phase for the introduction of economic evaluations

Cost-effectiveness analysis of nivolumab plus chemotherapy vs chemotherapy for patients with unresectable advanced or metastatic HER2-negative gastric or gastroesophageal junction or esophageal adenocarcinoma in Japan

BACKGROUND

This study aimed to evaluate the cost-effectiveness of nivolumab plus chemotherapy (NIVO + Chemo) compared with chemotherapy monotherapy (Chemo) for patients with advanced or metastatic HER2-negative gastric or gastroesophageal junction or esophageal adenocarcinoma (GC/GEJC/EAC) in Japan from the perspective of healthcare payer.

METHODS

A partitioned survival analysis model was developed to predict costs and quality-adjusted life years (QALYs) for NIVO + Chemo and Chemo. The time horizon of the model was set to 38 years. An annual discount rate of 2% for both costs and QALYs was applied. Data on overall survival and progression-free survival were derived from the CheckMate649 trial. Cost parameters were estimated from a Japanese medical claims database. The incremental cost-effectiveness ratio (ICER) of NIVO + Chemo compared with Chemo was estimated. A subgroup analysis on the level of PD-L1 CPS expression was conducted. In addition, sensitivity analysis was performed to assess the uncertainty in the parameter settings.

RESULTS

The incremental cost and QALY of NIVO + Chemo compared with Chemo were USD99,416 and 0.30 QALY, respectively. The ICER of NIVO + Chemo was estimated to be USD327,161 per QALY gained. The results of the subgroup analysis showed that ICER was USD247,403/QALY and USD302,183/QALY for PD-L1 CPS ≧ 5 and ≧ 1, respectively. Sensitivity analyses showed a relatively robust result that the ICER remained higher than the Japanese cancer threshold of USD75,000-150,000/QALY.

CONCLUSIONS

Applying the Japanese cancer threshold of USD75,000-150,000/QALY, NIVO + Chemo was not cost-effective for patients with advanced or metastatic HER2-negative GC/GEJC/EAC in Japan from the perspective of healthcare payer.

Real-world 2-year clinical and economic outcomes among patients receiving a medial collared, triple tapered primary hip system versus other implants for total hip arthroplasty

OBJECTIVE

To evaluate real-world outcomes of patients receiving ACTIS, a medial collared, triple-tapered (MCTT) hip system vs. other implants, for primary total hip arthroplasty (THA).

METHODS

Patients with THA between 2016-2021 from Mercy Healthcare Systems-Orthopedics Database were evaluated. The primary outcome was the 2-year revision. Secondary outcomes included operating room (OR) time, length of stay (LOS), and discharge disposition. Fine Stratification and Weighting (FSW) controlled for baseline characteristic differences between ACTIS and other implant groups. Cox proportional regression evaluated the hazard ratio (HR) for revision.

RESULTS

Among 9,225 patients with 10,205 THAs (mean [SD] age 66.8 [11.3] years, 56.0% female), MCTT was implanted in 1,591 hips and other implants in 8,614 hips. The balanced cohort included all 10,205 procedures (54.2% female; age 65.5 [11.3]; 14.1% Elixhauser index ≥5; 84.5% MCTT, 82.2% other since 2018; obesity 43.6% MCTT, 43.0% other). Two-year revision was 0.9% for MCTT and 1.8% for other implants (p = .021). HR for revision MCTT vs. other was 0.53 (95% CI 0.30-0.92; p = .023). Mean (SD) OR time was 69.07 (18.93) minutes for MCTT, 83.69 (43.88) for other implants (p < .001). LOS was 1.99 (1.15) days for MCTT, 2.45 (2.91) for other implants (p < .001). MCTT patients were more likely to be discharged home (90.7% vs 33.8%, p < .001) and less likely to be discharged to skilled nursing facilities (SNF) (4.2% vs 9.6%, p < .001). One-year cost savings per patient with MCTT was projected at $2,342.

CONCLUSIONS

MCTT patients had fewer revisions, reduced OR time, shorter LOS, more home and less SNF discharge, leading to cost savings.

Correlation of Anticancer Drug Prices with Outcomes of Overall Survival and Progression-Free Survival in Clinical Trials in Japan

Drug pricing methods vary extensively across countries. Japan calculates drug prices using cost accounting and based on the efficacy of similar drugs. This study investigated the relationship between drug prices and their clinical efficacy and usefulness using public information on anticancer drugs reimbursed by the National Health Insurance price listing between January 2009 and March 2020. We investigated drug characteristics, prices, and clinical benefits based on overall survival (OS) and progression-free survival (PFS). Eighty anticancer drugs were approved in Japan during the study period. The largest number (28 drugs, 35.0%) was approved based on PFS, 18 (22.5%) were approved based on OS, and 13 (16.3%) based on the response rate. The mean (±SD) drug price was JPY 88,416.2 (±148,974.7), while the median drug price (with quartiles) was JPY 21,694 (JPY 4855.0-JPY 93,396.8). Drug prices were significantly higher for PFS than for OS, while cost index-the drug price to extend PFS or OS by one day-did not differ significantly between PFS and OS. The relationship between the 46 drugs approved based on OS or PFS and their prices was examined. A correlation was found between drug prices and their clinical usefulness in terms of OS but not PFS.

Assessing Definitions and Incentives Adopted for Innovation for Pharmaceutical Products in Five High-Income Countries: A Systematic Literature Review

BACKGROUND

The concept of health care innovation varies across organizations and countries. Harmonizing the definitions of innovation can augment the discovery of new therapies, minimize costs, and streamline drug development and approval processes. A systematic literature review (SLR) was conducted to gather insights surrounding different elements of innovation in the USA, the UK, France, Germany, and Japan. The SLR identified studies that have defined innovation and captured the types of incentives provided to promote innovation.

METHODS

The MEDLINE, Embase, and EconLit databases were searched via the OVID SP platform on October 22, 2020. A secondary desk search literature review was performed to identify additional information of interest in regional languages: French, German, and Japanese. All the relevant literature in English was screened using the Linguamatics natural language processing (NLP) tool, except for articles from EconLit, which were screened manually using structured search strategies. Articles that describe a definition of innovation or refer to a definition of innovation published were included. All full-text articles were reviewed manually, and two reviewers independently screened the full texts for eligibility.

RESULTS

After screening, 90 articles were considered to meet the SLR objectives. The most common dimension of innovation identified was therapeutic benefit as a measure of innovation, followed by newness and novelty aspects of innovations. Incentives around exclusivities were found to be the most prevalent in the data set, followed by rewards and premiums. Among the different therapy areas, the largest number of innovations was targeted at oncology.

CONCLUSIONS

This SLR highlights the lack of a unified definition of innovation among regulatory authorities and health technology assessment bodies in five countries, and variation in the types of incentives associated with innovation. The targeted countries cover different dimensions of definition and incentives of innovation at varying levels, with a few focused on specific therapy areas. Harmonization and consensus for innovation would be needed across countries because drug development is a global undertaking. This SLR envisages a more holistic approach to evaluation, wherein the value provided to patients and health systems is accounted for. The results of this SLR will help to promote broader discussion among different stakeholders and decision makers across countries to identify gaps in policies and develop sustainable strategies to promote innovation for pharmaceutical products.

Cost-Effectiveness of First-Line Nivolumab Plus Ipilimumab Combination Therapy in Advanced Non-Small-Cell Lung Cancer in Japan

BACKGROUND AND OBJECTIVE

In Japan, indications for nivolumab have been expanded to include the combination therapy with ipilimumab in various cancers. This study aimed to evaluate the cost-effectiveness of combination therapy of nivolumab plus ipilimumab (NIV + IPI) for patients with advanced non-small-cell lung cancer (NSCLC), comparing it with platinum-doublet chemotherapy in Japanese settings.

METHODS

A partitioned survival model was developed to predict costs and quality-adjusted life-years (QALYs) in a NIV + IPI arm and a chemotherapy arm. Data on overall survival and progression-free survival were derived from the CheckMate 227 trial. Cost estimates were based on a Japanese healthcare system perspective using real-world data from the JMDC claims database. Utilities were derived from published sources outside Japan. The incremental cost-effectiveness ratio (ICER) of NIV + IPI therapy compared with chemotherapy was estimated. A scenario analysis on the level of programmed death-ligand 1 (PD-L1) expression was conducted. In addition, sensitivity analyses were performed to assess the uncertainty in parameter settings.

RESULTS

Compared with chemotherapy, NIV + IPI therapy incurred an additional cost of USD102,623 and conferred an additional 1.007 QALY, which resulted in an ICER of USD101,950/QALY gained. Contrary to prior expectations, the ICER of patients with a PD-L1 expression level ≥ 1% was higher than that of patients with a PD-L1 expression level < 1% (USD145,868/QALY and USD127,737/QALY, respectively). Sensitivity analyses showed a relatively robust result with the ICERs remaining higher than a Japanese price adjustment threshold of USD75,000/QALY with a few exceptions.

CONCLUSIONS

The combination of NIV + IPI as first-line therapy would not be cost effective under a willingness-to-pay threshold of USD75,000/QALY from the perspective of the Japanese healthcare system.

Estimation of the cost-effective threshold of a quality-adjusted life year in China based on the value of statistical life

Cost-effective threshold (CET) is essential for health technology assessment and decision-making based on health economic evaluations. Recently, it has been argued that the commonly used once and three times of gross domestic product (GDP) per capita CETs of a quality-adjusted life year (QALY) are not necessarily empirically supported in all countries. Therefore, we aimed to estimate the CET of a QALY as times of GDP per capita in China, of which the reimbursement coverage decisions are increasingly engaging economic evaluations. Estimates on the value of statistical life (VSL) in China were identified from several studies in the literature and converted to times of GDP per capita, the weighted average of which was used for subsequent calculation. By pooling data on population mortality, health utility, and age distribution, we estimated the value of a statistical QALY (VSQ) from VSL using an established mathematical process, which represented the theoretical upper bound of CET. The corresponding point estimate and theoretical lower bound were obtained using their numerical relationships with the upper bound. Scenarios analyses were also conducted. The estimated CET, its upper bound, and its lower bound were 1.45, 2.90, and 1.16 times of GDP per capita in China, respectively. In different scenarios, the estimated CET varied but was greater than once GDP per capita in most cases. As such, the CET of a QALY in China is close to 1.5 times of GDP per capita, which should be benchmarked for future ICER-based coverage decisions.

The reimbursement coverage decisions and pricing rules for medical devices in Taiwan

Medical technology is undergoing rapid transformations, and the classifications of medical devices have also expanded greatly; therefore, it is necessary to develop appropriate reimbursement policies and pricing mechanisms in a timely manner. This paper aims to introduce the reimbursement coverage and pricing rules for medical devices in Taiwan. In addition, this paper identifies and evaluates available health technology assessments (HTA) and literature on published websites concerning medical device decision-making processes and pricing systems in South Korea and Japan, which are near Taiwan and have similar reimbursement coverage processes. Reimbursement policy and pricing mechanisms are constantly being revised in Taiwan, Japan, and South Korea. Recently, all three countries attempted to establish new reimbursement coverage decision-making and pricing rules, adopting a differentiated approach based on the level of evidence required for the appropriated reimbursement in terms of a feasible evaluation mechanism for providing patients with more effective medical devices. This article is expected to contribute to providing references to new reimbursement coverage decision-making and pricing rules.

How innovation can be defined, evaluated and rewarded in health technology assessment

BACKGROUND

What constitutes innovation in health technologies can be defined and measured in a number of ways and it has been widely researched and published about. However, while many countries mention it as a criterion for pricing or reimbursement of health technologies, countries differ widely in how they define and operationalise it.

METHODS

We performed a literature review, using a snowballing search. In this paper, we explore how innovation has been defined in the literature in relation to health technology assessment. We also describe how a selection of countries (England, France, Italy, Spain and Japan) take account of innovation in their health technology assessment frameworks and explore the key methodologies that can capture it as a dimension of value in a new health technology. We propose a way of coming to, and incorporating into health technology assessment systems, a definition of innovation for health technologies that is independent of other dimensions of value that they already account for in their systems, such as clinical benefit. We use Spain as an illustrative example of how innovation might be operationalised as a criterion for decision making in health technology assessment.

RESULTS

The countries analysed here can be divided into 2 groups with respect to how they define innovation. France, Japan and Italy use features such as severity, unmet need and therapeutic added value as indicators of the degree of innovation of a health technology, while England, Spain consider the degree of innovation as a separate and additional criterion from others. In the case of Spain, a notion of innovation might be constructed around concepts of `step-change', `convenience', `strength of evidence base' and `impact on future research & development'.

CONCLUSIONS

If innovation is to be used as operational criteria for adoption, pricing and reimbursement of health technologies, the concept must be clearly defined, and it ought to be independent from other value dimensions already captured in their health technology assessment systems.

Relationships between developmental strategies for additional indications and price revisions for anticancer drugs in Japan

Background

The relationships between developmental strategies for additional indications and drug price revisions have not been thoroughly studied. Here, we investigated the price revisions for anticancer drugs approved in Japan.

Methods

The study was based on published information on anticancer drugs approved between January 2009 and March 2020 in Japan. We investigated the relationships between the pharmacological and regulatory characteristics of anticancer drugs and occurrence/non-occurrence of the Japanese National Health Insurance (NHI) price revisions.

Results

Eighty-one new anticancer drugs were given NHI price listings during the survey. On April 1, 2020, the prices of 23 anticancer drugs had been revised from the initial pricing, the prices were reduced for 21 drugs (91.3%). Several parameters showed the relationships between drug characteristics and NHI price revisions. The achievement of additional indications and compound type were identified as explanatory factors for these relationships. Additional indication profiles were defined to assess the relationships between the methods for additional indication achievement and price revisions. When the type of additional indication was “Expansion”, the percentage of drugs received NHI price revisions was the highest (P<0.001).

Conclusions

NHI price revision was significantly related to the achievement of additional indications and compound type. The strategy for additional indications was found to affect the occurrence/non-occurrence of NHI price revisions.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12913-021-07360-w.

A Review of Current Approaches to Defining and Valuing Innovation in Health Technology Assessment

OBJECTIVES

The growing focus on the value of new drugs for patients and society has led to a more differentiated notion of innovation in the context of pharmaceutical products. The goal of this article is to provide an overview of the current debate about the definition and assessment of innovation and how innovation is considered in reimbursement and pricing decisions.

METHODS

To compile the relevant literature, we followed a 2-step approach. First, we searched for peer-reviewed literature that deals with the definition of pharmaceutical innovation. Second, we reviewed health technology assessment (HTA) guidelines of 11 selected countries (Australia, Belgium, Canada, England, France, Germany, Italy, Japan, Norway, Sweden, and The Netherlands) regarding aspects of innovation that are currently considered as relevant by the respective HTA bodies.

RESULTS

All countries in our sample use 1 of 2 types of reward mechanism for novel drugs that they consider provide some sort of benefit. Generally, the focus is on the therapeutic benefit of a drug, whereas, depending on the exact arrangement, other aspects can also be taken into account. A reduction in side effects and aspects of treatment convenience can be invoked in some of the countries. Mostly, however, they are not considered unless they are already captured in the clinical outcomes used to measure the therapeutic benefit.

CONCLUSION

Our review shows that although the health economic literature discusses a range of aspects on how innovation may generate value even without providing an immediate added therapeutic benefit (or on top of it), these are only selectively considered in the reviewed HTA guidelines. For most part, only the added therapeutic value is crucial when it comes to pricing and reimbursement decisions.

Validation of the predictive accuracy of health-state utility values based on the Lloyd model for metastatic or recurrent breast cancer in Japan

INTRODUCTION

Although there is a lack of data on health-state utility values (HSUVs) for calculating quality-adjusted life-years in Japan, cost-utility analysis has been introduced by the Japanese government to inform decision making in the medical field since 2016.

OBJECTIVES

This study aimed to determine whether the Lloyd model which was a predictive model of HSUVs for metastatic breast cancer (MBC) patients in the UK can accurately predict actual HSUVs for Japanese patients with MBC.

DESIGN

The prospective observational study followed by the validation study of the clinical predictive model.

SETTING AND PARTICIPANTS

Forty-four Japanese patients with MBC were studied at 336 survey points.

METHODS

This study consisted of two phases. In the first phase, we constructed a database of clinical data prospectively and HSUVs for Japanese patients with MBC to evaluate the predictive accuracy of HSUVs calculated using the Lloyd model. In the second phase, Bland-Altman analysis was used to determine how accurately predicted HSUVs (based on the Lloyd model) correlated with actual HSUVs obtained using the EuroQol 5-Dimension 5-Level questionnaire, a preference-based measure of HSUVs in patients with MBC.

RESULTS

In the Bland-Altman analysis, the mean difference between HSUVs estimated by the Lloyd model and actual HSUVs, or systematic error, was -0.106. The precision was 0.165. The 95% limits of agreement ranged from -0.436 to 0.225. The t value was 4.6972, which was greater than the t value with 2 degrees of freedom at the 5% significance level (p=0.425).

CONCLUSIONS

There were acceptable degrees of fixed and proportional errors associated with the prediction of HSUVs based on the Lloyd model for Japanese patients with MBC. We recommend that sensitivity analysis be performed when conducting cost-effectiveness analyses with HSUVs calculated using the Lloyd model.

Changes in Health State Utility Values in Japanese Patients with End-Stage Breast Cancer

We aimed to determine the dynamic trends in health state utility values (HSUVs) in patients with end-stage breast cancer. We selected 181 patients comprising 137 with primary breast cancer (PBC) and 44 with metastatic breast cancer (MBC) (28 survivors and 16 patients with MBC death). HSUVs were 0.90 and 0.89 in patients with PBC and 0.83 and 0.80 in those with MBC (survivors) at 6 and 3 months, respectively, before the end of the observation period; these values were 0.73 and 0.66, respectively, in those with MBC (deceased) during the aforementioned period. The root-mean-squared error (RMSE) for the decrease in HSUVs over 3 months was 0.10, 0.096, and 0.175 for patients with PBC, MBC (survivors), and MBC (deceased), respectively. One-way analysis of variance for differences in absolute error among the groups was significant (p = 0.0102). Multiple comparisons indicated a difference of 0.068 in absolute error between patients with PBC and those with MBC (deceased) (p = 0.0082). Patients with end-stage breast cancer had well-controlled HSUVs 3 months before death, with a sharp decline in HSUVs in the 3 months leading up to death.

International reference pricing for prescription drugs: a landscape analysis

During the Trump administration, members of Congress and the administration proposed the introduction of international reference pricing (IRP) to Medicare in order to reduce US drug spending by benchmarking prices to those in other countries. Many other countries currently use IRP. We examined how US policy proposals compare with the implementation of IRP in the countries that would be referenced by the United States. Nearly two-thirds of comparator countries use IRP but also use other price negotiation strategies. The congressional proposal was most like the approach used by other countries, while the Trump administration's proposals took an uncommon approach to IRP by not adopting additional pricing strategies. DISCLOSURES: This work was supported by Arnold Ventures, which provided overall funding but was not involved in conception, design, or conduct of this work. Kesselheim provides guidance to the Massachusetts Health Policy Commission on its prescription drug price review process under a contract to Brigham and Women's Hospital but does not receive personal funding for this work. Rand has nothing to disclose.

Health technology assessment and economic evaluation: Is it applicable for the traditional medicine?

Gaps between limited health resources and expanding health service demands are emerging to be more and more prominent, which extremely generate the cost-effective strategies for scientific policy-making in the context of healthcare. As a systematic approach and solid tool to promote healthcare system more efficient and sustainable, health technology assessment (HTA) could provide multi-dimensional evidences comprising effectiveness, safety, economic implications, ethical, social, cultural and legal issues, in which economic evaluation is an important and unique part for optimizing decision-making. After decades of development, HTA has formulated a set of systematic theories, methods and procedures based on modern medicine. Meanwhile, as an important component of medicine system across the world, traditional medicine (TM) originates from knowledge, skill, and practices based on the theories, beliefs, and experiences indigenous to different traditional cultures. Yet whether current theory and method system of HTA is applicable for TM is necessary to be explored and investigated. In principle, the general steps and methods of HTA could be basically applicable to TM, except for the PICO structuring, cost measurement, and supportive clinical evidence and information collection in economic evaluation. Therefore, these three challenging problems need to be focused and addressed in future HTA for TM.

Developing a health economic model for Asians with type 2 diabetes based on the Japan Diabetes Complications Study and the Japanese Elderly Diabetes Intervention Trial

INTRODUCTION

Cost-effectiveness analyses are becoming increasingly important in Japan following the introduction of a health technology assessment scheme. The study objective was to develop an economic model to evaluate the cost-effectiveness of two interventions for type 2 diabetes in a Japanese population.

RESEARCH DESIGN AND METHODS

The Japan Diabetes Complications Study/Japanese Elderly Diabetes Intervention Trial risk engine (JJRE) Cost-Effectiveness Model (JJCEM) was developed, incorporating validated risk equations in Japanese patients with type 2 diabetes from the JJRE. Weibull regression models were developed for progression of the model outcomes, and a targeted literature review was performed to inform default values for utilities and costs. To illustrate outcomes, two simulated analyses were performed in younger (aged 40 years) and older (aged 80 years) Japanese populations, comparing a hypothetical treatment with placebo.

RESULTS

The model considers a population based on user-defined values for 11 baseline characteristic parameters and simulates rates of diabetic complications over a defined time horizon. Costs, quality-adjusted life years, and an incremental cost-effectiveness ratio are estimated. The model provides disaggregated results for two competing interventions, allowing visualization of the key drivers of cost and utility. A scatterplot of simulations and cost-effectiveness acceptability curve are generated for each analysis.

CONCLUSIONS

This is the first cost-effectiveness model for East Asian patients with type 2 diabetes, developed using Japan-specific risk equations. This population constitutes the largest share of the global population with diabetes, making this model highly relevant. The model can be used to evaluate the cost-effectiveness of anti-diabetic interventions in patients with type 2 diabetes in Japan and other East Asian populations.

Prospective observational study estimating willingness-to-pay for breast cancer treatments through contingent valuation method in Japanese breast cancer patients (JCOG1709A)

In April 2016, the Japanese government introduced health technology assessment as a response to rising medical expenses due to ‘medical innovation’. This study investigates how Japanese breast cancer patients who received treatment in Japan consider the financial value (willingness-to-pay; WTP) for their life and health by using the contingent valuation method (CVM) prospectively. First, 168 patients (84 primary breast cancer patients and 84 metastatic breast cancer patients) were pre-examined their WTP with dichotomous-choice method survey form. Next, 1,596 patients (798 primary breast cancer patients and 798 metastatic breast cancer patients) will be surveyed to their WTP for hypothetical scenarios in CVM. Based on our results, we will construct an evaluation axis from the patients’ viewpoint for the cost-effectiveness of clinical trials to establish standard treatments for breast cancer. We believe this research can contribute to create a meaningful healthcare system for patients, clinicians, industries, and healthcare policymakers.

Cost Effectiveness Analysis of Tisagenlecleucel for the Treatment of Adult Patients with Relapsed or Refractory Diffuse Large B Cell Lymphoma in Japan

There are limited treatment options and substantial unmet needs for adult patients with relapsed or refractory diffuse large B cell lymphoma (r/r DLBCL) in Japan. In 2019, tisagenlecleucel, a CD19-directed chimeric antigen receptor T cell therapy, was approved for r/r DLBCL in Japan. The efficacy and safety of tisagenlecleucel were demonstrated in the pivotal phase II single-arm JULIET trial. The objective of the current study was to assess the cost-effectiveness of tisagenlecleucel treatment strategy versus current standard of care (salvage chemotherapy treatment strategy) for the treatment of patients with r/r DLBCL in Japan. A three-state partitioned survival model was constructed from a Japanese public healthcare payer's perspective, with the following three health states: progression-free survival, progressive/relapsed disease, and death. Because the tisagenlecleucel arm included patients who did or did not receive the infusion, a decision-tree structure was used to partition patients based on their infusion status. Treatment efficacy and costs were based on tisagenlecleucel-infused patients for those who received the infusion; for non-infused patients, they were based on standard salvage chemotherapy. The efficacy inputs for tisagenlecleucel-infused patients and salvage chemotherapy were based on observed data in the JULIET trial and the international SCHOLAR-1 meta-analysis, respectively, before year 3. Afterward, all patients were assumed to have no further progression and to incur the mortality risk of long-term DLBCL survivors. The base case analysis explored a lifetime horizon (44 years), with costs and effectiveness discounted 2.0% annually, and it used a monthly model cycle. Direct costs were considered in the base case, composed of pretreatment costs, treatment costs, adverse events management costs, follow-up costs before progression, subsequent SCT costs, post-progression costs, and terminal care costs. Total incremental costs, life years (LYs), and quality-adjusted life years (QALYs) were compared for tisagenlecleucel versus salvage chemotherapy. The incremental cost-effectiveness ratio (ICER) was estimated as the costs per QALY gained, and a threshold of ¥7.5 million was used to assess whether tisagenlecleucel is cost effective. Deterministic and probabilistic sensitivity analyses were performed. The total LYs (discounted) for tisagenlecleucel and salvage chemotherapy were 7.24 and 4.35 years, respectively; the corresponding QALYs were 5.42 and 2.57 years, respectively. The discounted incremental LYs and QALYs comparing tisagenlecleucel to salvage chemotherapy were estimated as 2.89 and 2.85 years, respectively. Over a lifetime horizon, the model estimated that tisagenlecleucel had a total incremental cost of ¥15,590,335 (discounted) versus salvage chemotherapy. Tisagenlecleucel was associated with an ICER of ¥5,476,496 per QALY gained compared to salvage chemotherapy. Extensive sensitivity analyses supported the base-case findings. Tisagenlecleucel is a cost-effective treatment strategy for r/r DLBCL compared to salvage chemotherapy treatment strategy from a Japanese public healthcare payer's perspective.

Standard table direct anterior approach within an early discharge protocol for cementless total hip arthroplasty: experience from a Japanese hospital

AIMS

Clinical and economic outcomes associated with an early discharge protocol for cementless total hip arthroplasty (THA) via a direct anterior approach (DAA) on a standard table without a dedicated traction table) were assessed. These outcomes were compared against a benchmark of THA care approximated from a national database.

MATERIALS AND METHODS

This retrospective, observational, comparative cohort study evaluated 250 patients receiving THA with a standard table DAA approach under an early discharge protocol at a medical center in Japan between 2016 and 2017 (intervention). Patients were propensity score-matched to a standard care control group comprised of THA patients within the Japan Medical Data Center database. A generalized linear model (GLM) using gamma distribution with log-link compared hospital length of stay (LOS) and total cost. Post-operative function and pain (Japanese Orthopaedic Association hip score [JOA] and Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire [JHEQ]) were assessed for DAA patients.

RESULTS

After propensity score matching, 239 patients were included in each cohort. The patients in the intervention and control group were comparable in regard to age, gender, comorbidities, and procedure year. Adjusted hospital LOS for DAA as part of an early discharge protocol was significantly shorter than for control patients (4.76 vs. 25.36 days). Adjusted total costs were significantly lower (29%) for the intervention group (¥1,613,800 vs. ¥2,254,757; US$14,390 vs. US$20,105). The 3-month follow-up complication rate was 0.42% (superficial infection) for intervention vs. 3.35%. The intervention group had no readmissions and post-operative function and pain scores significantly improved (JHEQ pain score 7.2 ± 5.0 to 24.2 ± 4.6, JOA 48.4 ± 12.8 to 94.3 ± 7.0; p-value < .001).

LIMITATIONS

The study is not randomized and EMR and administrative claims data may lack information (i.e. some clinical variables) required for inference. Also, the data may not represent the whole Japanese population.

CONCLUSIONS

An early discharge protocol demonstrated compatibility with standard table DAA in a Japanese hospital, providing cost savings, while maintaining reliable clinical outcomes.

Job Characteristics Affecting Japanese Surgeons' Satisfaction Levels

BACKGROUND

The number of medical graduates choosing surgical careers has been declining rapidly in Japan, likely because of surgeons' notoriously stressful working environments and inadequate compensation. We hypothesized that surgeons, in comparison to those in other specialties, have distinct perceptions of their job. To better understand the reasons for the decline in the number of surgeons, we conducted an email-based survey to characterize surgeons' and physicians' job perceptions.

MATERIALS AND METHODS

The study population, recruited via emailed invitations, completed a questionnaire primarily modeled after the Hackman and Oldham multidimensional tool. The survey contained seven dimensions: task significance, dealing with others, feedback from the job, autonomy, skill variety, task identity, and ethics. The response rate was 29.4%. Results were compared across specialty groups (surgery, internal medicine, and others) and-among surgeons-by hospital setting (university hospitals versus community hospitals).

RESULTS

Responses from 415 Japanese physicians were included in this study. The mean scores for ethics, task significance, and dealing with others, and feedback from the job were significantly higher in the surgery group than in the internal medicine and other specialty groups (P < 0.05). In contrast, the mean score for autonomy was lower in the surgery group than in the other groups, and the autonomy score was significantly lower in the university hospital surgery group than in the community hospital surgery group (P < 0.05).

CONCLUSIONS

There are clear differences in job perception between surgeons and other physicians, particularly in regard to ethics, task significance, dealing with others, and feedback from the job. Improvement of surgeons' working environments is an imminent need to avoid surgeons' burnout and mitigate the decline in the number of new surgical trainees in Japan.

Lower Drug Cost of Successfully Treating Patients with Type 2 Diabetes to Targets with Once-Weekly Semaglutide versus Once-weekly Dulaglutide in Japan: A Short-Term Cost-Effectiveness Analysis

INTRODUCTION

In the head-to-head trial (SUSTAIN 7), the novel, injectable, once-weekly GLP-1 analogue semaglutide showed superiority in both glycemic outcomes and body weight reduction, compared with once-weekly dulaglutide in the treatment of type 2 diabetes (T2D). However, no economic evaluation using these data has yet been conducted in the Japanese setting. The objective of this analysis was to assess the short-term cost-effectiveness in Japan of once-weekly semaglutide 0.5 mg (the approved maintenance dose in Japan) compared with once-weekly dulaglutide 0.75 mg (the only licensed dose in Japan) over a 1-year period using Japanese cost data.

METHODS

Responder endpoints were obtained from the SUSTAIN 7 trial to assess the cost of successfully treating patients to these targets ("cost of control"). Responder endpoint definitions consisted of single, dual, and triple composite endpoints related to glycemic control, body weight, and hypoglycemia outcomes. The cost of treatment was accounted from a healthcare payer perspective, capturing drug costs only.

RESULTS

Treatment with once-weekly semaglutide 0.5 mg was associated with a lower cost and a lower cost per patient treated to target for all endpoints, compared with once-weekly dulaglutide 0.75 mg. For each JPY 1 spent on bringing patients to target with once-weekly semaglutide 0.5 mg, JPY 1.58, JPY 1.44, JPY 1.60, JPY 2.10, and JPY 2.33 would need to be spent on once-weekly dulaglutide 0.75 mg to achieve an equivalent outcome for endpoints of HbA1c ≤ 6.5%, HbA1c < 7.0%, HbA1c < 7.0% without hypoglycemia, and no weight gain, weight loss ≥ 5%, and ≥ 1.0% HbA1c reduction and ≥ 3.0% weight loss, respectively.

CONCLUSIONS

These findings suggest that once-weekly semaglutide is a cost-effective treatment option compared with once-weekly dulaglutide for patients with T2D in Japan. In the future, this finding should be extrapolated to traditional long-term cost-effectiveness analysis, using common outcomes such as quality-adjusted life years.

An International Review of Health Technology Assessment Approaches to Prescription Drugs and Their Ethical Principles

In many countries, health technology assessment (HTA) organizations determine the economic value of new drugs and make recommendations regarding appropriate pricing and coverage in national health systems. In the US, recent policy proposals aimed at reducing drug costs would link drug prices to six countries: Australia, Canada, France, Germany, Japan, and the UK. We reviewed these countries' methods of HTA and guidance on price and coverage recommendations, analyzing methods and guidance documents for differences in (1) the methodologies HTA organizations use to conduct their evaluations and (2) considerations they use when making recommendations. We found important differences in the methods, interpretations of HTA findings, and condition-specific carve-outs that HTA organizations use to conduct evaluations and make recommendations. These variations have ethical implications because they influence the recommendations of HTA organizations, which affect access to the drug through national insurance and price negotiations with manufacturers. The differences in HTA approaches result from the distinct political, social, and cultural contexts of each organization and its value judgments. New cost-containment policies in the US should consider the ethical implications of the HTA reviews that they are considering relying on to negotiate drug prices and what values should be included in US pricing policy.

Value of a QALY for France: A New Approach to Propose Acceptable Reference Values

OBJECTIVE

France has included health economic assessment (HEA) as an official criterion for innovative drug pricing since 2013. Until now, no cost-effectiveness threshold (CET) has been officially proposed to qualify incremental cost-effectiveness ratios (ICERs). Although the French health authorities have publicly expressed the need for such reference values, previous initiatives to determine these have failed. The study aims to propose a locally adapted method for estimating a preference-based value for a quality-adjusted life-year (QALY) based on a rational approach to public policy choices in France.

METHODS

We used the official French value of statistical life (VSL) of €3 million (USD 3.25 million), proposed in 2013 by the French General Commission on Strategy and Prediction. We first estimated the value of life-year (VoLY) by age category according to life expectancy and official discounts recommended for HEA in France. We then estimated a value of statistical QALY (VSQ) by weighting VoLYs with demographic data and French EQ-5D-3L tariffs.

RESULTS

The estimated average VoLYs and VSQs were €120 185 (USD 130 000) and €147 093 (USD 159 022), respectively, assuming a discount rate of 2.5% and €166 205 (USD 179 681) and €201 398 (USD 217 728), respectively, assuming a discount rate of 4.5%.

CONCLUSION

Assuming that, as in other public domains, equity in access to healthcare across all disease areas and between all users is desirable, we propose an estimate of VSQ that is consistent with this goal. Our estimates of €147 093 (USD 179,681) to €201 398 (USD 217 728) should be perceived as breakeven costs for a QALY rather than a market access threshold. Such VSQs could be used as reference values for ICERs in HEA in France.

Cost-effectiveness evaluation for pricing medicines and devices: A new value-based price adjustment system in Japan

OBJECTIVES

In Japan, a new cost-effectiveness evaluation system for medicine and medical device pricing was employed in April 2019 after a trial implementation. This study describes the discussions held from April 2016 to March 2019 concerning the newly introduced system.

METHODS

Using published government documents, discussions with stakeholders, and the minutes of the Chuikyo committee meetings, the following issues are addressed: (i) the results of the trial implementation and (ii) an overview of the newly introduced system.

RESULTS

During the trial implementation, thirteen products were evaluated and their prices adjusted. The process of the new system-which was to be implemented in FY 2019-takes about 15-18 months to complete after listing of the target products by the National Health Insurance. The target products are selected principally based on sales volume, degree of innovation (premium), and disclosure of rationale for price setting. First, a manufacturer submits the cost-effectiveness data, which is then reviewed by the Center for Outcomes Research and Economic Evaluation for Health (C2H) in collaboration with academics. The results of the cost-effectiveness evaluation are not considered during the decision-making process concerning the product's listing. The price adjustment system is similar to value-based pricing (VBP); hence, the new system can be considered as VBP adjustment.

CONCLUSION

Cost-effectiveness evaluation can help promote both technological innovation and sustainability of the healthcare system. We need to create a greater capacity for enhancing this academic review system.

Development of a multiplicative, multi-attribute utility function and eight single-attribute utility functions for the Health Utilities Index Mark 3 in Japan

Background

The Health Utilities Index Mark 3 (HUI3) is a generic multi-attribute, preference-based system for assessing health-related quality of life. It is widely used overseas as an outcome measure and for estimating quality-adjusted life years. We aimed to estimate a multi-attribute and eight single-attribute utility functions for the HUI3 system based on community preferences in Japan. We conducted two preference surveys in this study. The first survey was designed to estimate a model of utility function and collect preference scores, and the second survey was designed to evaluate predictive validity of the utility function and provide independent scores. Values obtained from the feeling thermometer and standard gamble scores obtained from using a chance board were included in the preference scale. We recruited 1043 respondents (age: 20–79 years) from five cities in Japan through the general population classified by sex and age groups. Respondents were further randomly divided into a modeling group (n = 774) and a direct group (n = 263).

Results

We acquired the estimation for eight single-attribute and a global multi-attribute utility function. The minimum expected multi-attribute utility score was − 0.002. The intraclass correlation coefficient between the directly measured utility score and the score generated by multi-attribute function in terms of 53 health conditions was 0.742.

Conclusions

The HUI3 scoring function developed in Japan has a strong theoretical and empirical basis. It will be useful in future to predict the directly measured score of health technology assessments in Japan.

Health technology assessment in Japan: a work in progress

Background: In Japan, pharmacoeconomic requirements for list-price adjustment were institutionalized in April 2019 following provisional implementation of a new Health Technology Assessment (HTA) program 2016-2019. Since April 2019, submission of cost-effectiveness evidence to the Central Social Insurance Medical Council (Chuikyo) as part of the Japanese Ministry of Health, Labour, and Welfare has been mandatory for selected pharmaceuticals and medical devices.Methods: Based on a review of publications and commentaries since April 2019, together with views from a group of experts on key issues to be addressed, this report provides an update on recent HTA developments and key challenges still to be addressed.Results and Discussion: Japan's new HTA program is a first step toward development of a universal healthcare system that can be sustainable for many years into the future. Currently, Japan's HTA program requires provision of incremental cost-effectiveness ratios (ICERs) as evidence, with quality-adjusted life years as the preferred outcome measure. Prices can be adjusted both upward and downward according to the degree of the ICER estimate. Japan is the first country to have adopted an algorithmic method for "ICER-based" pricing; however, HTA measures that extend beyond a single ICER estimate are needed to take full advantage of HTA in the future. In particular, generation of evidence of value should support changes to the healthcare system so that incentives for innovation are not diminished while industry and government are not overburdened by the generation or assessment of evidence. There is a need to ensure scientifically sound HTA expertise across all sectors in Japan, and therefore enhancement of HTA literacy and capability among healthcare professionals, academia, government, and industry should be a priority.

Formal Implementation of Cost-Effectiveness Evaluations in Japan: A Unique Health Technology Assessment System

In April 2019, Japan formally introduced health technology assessment (HTA) and, more specifically, a cost-effectiveness analysis, to inform healthcare decision making, mainly when it comes to the pricing of new technologies. This article provides an overview of this new policy, which was implemented formally after a pilot program. In the fiscal year (FY) 2012, discussions on cost-effectiveness assessments were initiated in Japan. After 7 years of deliberations, a cost-effectiveness assessment was implemented formally in April 2019. In Japan, the cost-effectiveness analysis has been used to inform price adjustments of healthcare technologies, although it has not yet been used for decision making on insurance coverage. Selection criteria were established because not all drugs and medical devices could be evaluated owing to a shortage of experts. Exclusion criteria have also been applied to prevent access restriction. The scope of the evaluation's price adjustment target is limited to part of the product price. If the cost per quality-adjusted life-year (QALY) threshold falls below ¥5 million per QALY, the price adjustment rate changes stepwise according to the cost per QALY. In addition to price reduction, a price-raising scheme has also been implemented for scenarios where products are evaluated to be highly cost-effective and innovative. This article describes the first formally implemented HTA system in Japan. Although it is too early to make any conclusions about its effect, the Japan-specific context makes this system unique. To fully understand the opportunities and challenges of the new system, it is vital that Japan accumulates experience with this system and develops human resources in health economic evaluation.

Willingness to pay for QALY: perspectives and contexts in Japan

Objectives: Theoretically, willingness-to-pay (WTP) for quality-adjusted life years (QALY) can vary depending on social and personal preferences and on ex-ante and ex-post settings. However, empirical investigations into the theoretical differences are lacking. In Japan, setting the threshold has been controversial since a pilot project to implement health technology assessments (HTA) launched in 2016. The study aim is to estimate WTP values for one additional QALY from different perspectives, health statuses, and contexts to confirm the difficulty in setting a uniform price threshold using WTP. Methods: More than 1,000 respondents representing a cross-section of the Japanese population answered each of nine questionnaire decks in an online panel. WTP values were estimated on three different perspectives (personal, social, and socially inclusive) and on two contexts (ex-ante and ex-post). This study primarily used the non-parametric spike model based on double-bounded dichotomous choice (DBDC) settings to obtain the conditional WTP values. Results: WTP per QALY was higher in the severe health status than in the moderate health status from all perspectives. Respondents from the socially inclusive perspective estimated the highest WTP value for a new drug. Respondents were also asked about life-threatening diseases in ex-post and ex-ante. The WTP value in ex-ante was higher than in ex-post, and demographic factors affecting the WTP were different in both situations. The various WTP values were obtained from these surveys. Limitations: The analysis was based on data collected from an internet panel, which could be biased. There is also a risk that respondents answered the questionnaire differently if asked in everyday situations. Conclusion: Use of a uniform price threshold may not be appropriate in policy settings, because it may not reflect diverse preferences based on different situations, such as disease type and severity. Setting a price threshold as Japan institutes an HTA system requires further research.

Building primary care in Japan: Literature review

Japan's health system is well known for achieving one of the world's highest life expectancy with universal health coverage. However, the country now faces challenges of a rapidly aging population and changes in patterns and burden of disease. Primary care is an important component of a well-functioning health system. In Japan, primary care services are provided in both the community and hospital settings. The distinction between primary and secondary care may not always be clear. This review is based on the framework from the 2015 WHO publication on primary care systems in Europe. Our aim is to describe the journey of primary care in Japan, with its past, present, and future as a valuable addition to the academic English literature. We also hope that this article would inspire readers outside of Japan who might face similar issues in their respective countries.

Analyzing Upward Deviation of Actual vs Predicted Drug Sales in Japan for a Reasonable Drug-Pricing Policy

BACKGROUND

Predictions of drug sales play an important role in setting drug prices in Japan, where drug prices are highly regulated. One of 2 primary Japanese drug-pricing methodologies-the cost calculation method- refers extensively to the prediction of drug sales in establishing drug prices. Deviations from predicted sales can induce disproportionate drug prices and unexpected pharmaceutical expenditures. This study aimed to estimate the upward deviation of actual sales from predicted sales and to explore the predictors of such upward deviation.

METHODS

Estimates of upward deviation in 2015 were produced for new molecular entities (NMEs) approved in 2006-2015. To identify the predictors associated with upward deviation through binary logistic regression analyses, sales within 3 years of launch and in the predicted year in which peak sales would be reached were used.

RESULTS

Estimated upward deviation was more than 1220 billion yen in 2015 for the targeted drugs. Drugs priced by the cost calculation method or by obtaining additional indications were significantly more likely to show an upward deviation from predicted peak sales.

CONCLUSION

There is substantial upward deviation between actual and predicted drug sales in Japan. So long as drug sales predictions are used in drug price calculations, a flexible repricing system is needed to buffer unexpected pharmaceutical expenditures.

Cost-effectiveness analysis of lenvatinib treatment for patients with unresectable hepatocellular carcinoma (uHCC) compared with sorafenib in Japan

BACKGROUND

Lenvatinib demonstrated a treatment effect on overall survival by the statistical confirmation of non-inferiority to sorafenib for the first-line treatment of uHCC. The objective of this study was to evaluate the cost-effectiveness of lenvatinib compared with sorafenib for patients with uHCC in Japan.

METHODS

A partitioned-survival model was developed to estimate the cost-effectiveness of lenvatinib versus sorafenib when treating uHCC patients over a lifetime horizon and considering total public healthcare expenditure. Efficacy and safety data were extracted from the REFLECT trial. Utility values were derived from the European Quality-of-Life 5-Dimension Questionnaire, conducted with patients enrolled in the REFLECT trial. Direct medical costs, such as primary drug therapy, outpatient visits, diagnostic tests, hospitalization, post-progression therapy, and adverse-event treatments, were included. Cost parameters unavailable in the clinical trial or publications were obtained based on the consolidated clinical standards from a Delphi panel of four Japanese medical experts.

RESULTS

For lenvatinib versus sorafenib, the incremental cost was - 406,307 Japanese Yen (JPY), and the incremental life years and quality-adjusted life years (QALYs) were 0.27 and 0.23, respectively. Thus, lenvatinib dominated sorafenib, due to the mean incremental cost-effectiveness ratio falling in the fourth quadrant, conferring more benefit at lower costs compared with sorafenib. The probabilistic sensitivity analysis showed that 81.3% of the simulations were favorable to lenvatinib compared with sorafenib, with a payer's willingness-to-pay-per-QALY of 5 million JPY.

CONCLUSIONS

Lenvatinib was cost-effective compared with sorafenib for the first-line treatment of uHCC in Japan.

Health utility and health-related quality of life of Japanese prostate cancer patients according to progression status measured using EQ-5D-5L and FACT-P

PURPOSE

To obtain health utility data to allow for cost-effectiveness analysis in groups stratified by disease progression along with health-related quality of life (HRQoL) information in Japanese prostate cancer (PC) patients.

METHODS

In this cross-sectional observational study, EuroQol-5 Dimension- 5 Level (EQ-5D-5L), EuroQol Visual Analog Scale (EQ-VAS), and Functional Assessment of Cancer Therapy-Prostate (FACT-P) measures were used to examine utility, VAS scores, and disease-specific HRQoL, respectively. Scores obtained were statistically examined for the correlation among measures and domains. Parameter estimates of statistically significant factors were assessed using generalized linear models (GLM).

RESULTS

A total of 380 patients stratified by their disease progression status were analyzed. The numbers (%) of patients in groups stratified as having localized (L), localized progression (LP), distant metastatic (DM), and DM-castration-resistant PC (CRPC) were 275 (72.4), 40 (10.5), 27 (7.1), and 38 (10.0), respectively. EQ-5D-5L mean (standard deviation, SD) scores of L, LP, DM, and DM-CRPC in study participants were 0.87 (0.15), 0.86 (0.15), 0.85 (0.18), and 0.84 (0.17), respectively. The mean (SD) scores assessed by EQ-5D-5L, EQ-VAS, and FACT-P instruments were 0.86 (0.16), 74.6 (16.8), and 110.8 (19.6), respectively. Utility scores correlated well with FACT-P scores. Eastern Cooperative Oncology Group performance status had significant influences on all instruments' scores.

CONCLUSIONS

We obtained health utility and HRQoL scores of Japanese PC patients stratified by disease progression in detail. Our results will be useful for establishing cost-effectiveness analyses in Japanese PC settings.

Rheumatology practice in Japan: challenges and opportunities

This article aims to and describes the characteristics of rheumatology practice in Japan, focusing on the medical environment for the treatment of rheumatoid arthritis (RA). In Japan, the introduction of biological disease-modifying anti-rheumatic drugs (bDMARDs) has led to a significant paradigm shift in medical care; satisfactory safety outcomes have been demonstrated by periodic analysis, post-market surveillance and the development of guidelines via an industry-academia-government collaboration. Drug discontinuation is also considered an option, as well as medical economic analysis of any increase in the financial burden engendered by use of bDMARDs. Tocilizumab, a bDMARD established in Japan, was developed in an environment that facilitates translational research. The rheumatology community in Japan is expected to continue to develop novel therapies, while ensuring consistent quality of medical care despite limited healthcare resources.

Health Technology Assessment in Japan: A Pharmaceutical Industry Perspective

BACKGROUND

Japan has been preparing to implement a Health Technology Assessment (HTA) process in 2018. Through a 2-year pilot program implemented in 2016, the government examined the criteria for applicable products and the necessary infrastructure to review both the content and quality of the data and to conduct cost-effectiveness assessments to be incorporated into the current Japanese reimbursement and pricing scheme. A survey of the pharmaceutical industry was conducted to understand the current landscape and to identify issues and challenges of implementing HTA in Japan.

METHODS

A semi-structured 19-item questionnaire was designed, and a survey was conducted via face-to-face or phone interviews. Answers were transcribed in English after the interviews and confirmed by e-mail. The survey focuses on pharmaceutical companies that develop new innovative products to be associated with the planned HTA.

RESULTS

Differences between Japanese and global pharmaceutical companies were observed in terms of dedicated HTA teams in place, the use of quality of life data, and relationships with external vendors. Addressing a shortage of HTA professionals in Japan is critical to implement HTA. The survey found that list prices compared to those proposed by companies was an issue.

CONCLUSIONS

Although the government decided to implement HTA for the pricing scheme in 2018, a shortage of experts and researchers remains a challenge. Findings suggest HTA should not be used solely to reduce pharmaceutical spending, as the impact by the HTA implementation will be temporary and discourage innovation.

Cost-Minimization Analysis of Deep-Brain Stimulation Using National Database of Japanese Health Insurance Claims

OBJECTIVES

A new rechargeable dual-channel deep brain stimulation (DBS) system has been introduced for the treatment of Parkinson's disease and other movement disorders. However, the clinical value of the device, which has a high cost, remains unclear.

MATERIALS AND METHODS

We conducted a cost-minimization analysis using a national database of health insurance claims in Japan. DBS-related costs were compared between rechargeable and non-rechargeable devices and estimated across a 20-year period.

RESULTS

Although the price of rechargeable DBS was higher than that of non-rechargeable DBS, we observed total cost-savings of 8.4 million yen across 20 years by considering costs related to implantation surgery, frequency of replacement, and risk of complications.

CONCLUSIONS

In this study, real-world evidence indicated that rechargeable dual-channel DBS is a reasonable choice for saving total medical costs. Price revisions should consider cost-effectiveness findings for medical devices.