Papers by Inthira Yamabhai
This study was aimed at determining appropriate medical indications, costs and the feasibility of... more This study was aimed at determining appropriate medical indications, costs and the feasibility of using Positron Emission Tomography-Computed omography (PET/CT) under the Thai health care setting. A systematic review and meta-analysis of literature published in the PubMed database focusing on the use of PET/CT compared to other diagnostic technology for patients with cancer and neurological conditions was conducted in 2007. Diagnostic performance, for example, sensitivity, specificity and accuracy, was used to identify in which medical indications that was superior to other alternative technology. Based on the review results and extensive consultations with health professionals, medical indications for the use of PET/CT for each health problem were developed. A micro-costing technique was employed to estimate the unit cost and cost function of PET/CT in Siriraj Hospital. A break-even point, the point at which expenses and revenue are equal, was identified from costing information to...
Health Economics & Outcome Research: Open Access
Health Research Policy and Systems, 2016
Background: Economic evaluation has been implemented to inform policy in many areas, including co... more Background: Economic evaluation has been implemented to inform policy in many areas, including coverage decisions, technology pricing, and the development of clinical practice guidelines. However, there are barriers to evidence-based policy in low-and middle-income countries (LMICs) that include limited stakeholder awareness, resources and data availability, as well as the lack of capacity to conduct country-specific economic evaluations. This study aims to survey health policy experts' opinions on barriers to use of cost-effectiveness data in these settings and to obtain their advice on how to make a new cost-per-DALY database being developed by Tufts Medical Center more relevant to LMICs. It also identifies the factors influencing transferability. Methods: In-depth interviews were conducted with 32 participants, including policymakers, technical advisors, and researchers in Health Ministries, universities and non-governmental organisations in Bangladesh, India (New Delhi, Tamil Nadu and Karnataka) and Vietnam.
BMC Health Services Research, 2016
Background: The Maternal and Child Health Voucher Scheme (MCHVS) was introduced in Myanmar to add... more Background: The Maternal and Child Health Voucher Scheme (MCHVS) was introduced in Myanmar to address the high rate of maternal and infant mortalities. It aimed to increase access to maternal and child health (MCH) services by skilled birth attendants (SBAs) and improve the health of pregnant women and their babies. A study to pilot a voucher scheme was implemented in May 2013 in Yedarshey Township. This paper provides a report on a mid-term review of the programme after 7 months of implementation to determine the outcomes of the programme and its impediments. Methods: Quantitative and qualitative approaches were used. Secondary quantitative data were analysed in order to measure the coverage and utilisation of the programme. Semi-structured interviews were conducted in groups and individually with 79 key informants to explore qualitative information on voucher communication, beneficiary's identification, voucher distribution, and challenges for beneficiaries and providers under the MCHVS. Results: The results showed that 63 % of eligible pregnant women who registered to the programme received voucher booklets, while the utilisation of most of the MCH services increased over time; in particular, delivery by SBAs increased significantly (P < 0.01) after implementing MCHVS. Overall, the programme was implemented well in terms of promoting and communicating the programme to people in Yedarshey Township. Although a number of targeted poor pregnant women were included in the programme, some beneficiaries were overlooked for a variety of reasons. Nevertheless, both providers and beneficiaries who experienced the MCHVS service utilisation were satisfied with the programme. The evaluation indicated several programme challenges, i.e. external and internal programme communication, voluntary voucher distributor recruitment, incentive and support for voucher distributors, beneficiary screening criteria, and approaches to increase access of services for pregnant women living in remote areas. Conclusions: Generally, the MCHVS pilot programme is a promising initiative to increase access to and utilisation of the MCH services for pregnant women and their babies in Myanmar. However, increasing coverage of the programme and overcoming the barriers should be considered as high-priority issues that need to be addressed.
Health research policy and systems / BioMed Central, Jan 18, 2016
It is very challenging for resource-limited settings to introduce universal health coverage (UHC)... more It is very challenging for resource-limited settings to introduce universal health coverage (UHC), particularly regarding the inclusion of high-cost renal dialysis as part of the UHC benefit package. This paper addresses three issues: (1) whether a setting commits to include renal dialysis in its UHC benefit package and if so, why and how; (2) how to ensure quality of renal dialysis services; and (3) how to improve the quality of life of patients using psychosocial and community interventions. This article reviews experiences of renal dialysis programs in seven settings based on presentations and discussions during the International Forum on Peritoneal Dialysis as a Priority Health Policy in Asia. A literature review was conducted to verify and validate the data as well as to fill information gaps presented in the forum. Five out of the seven settings implemented renal dialysis as part of their benefits package, while the other two have pilots or programs in their nascent stage. Ren...
Health Economics, 2016
Public health programmes tend to be complex and may combine social strategies with aspects of emp... more Public health programmes tend to be complex and may combine social strategies with aspects of empowerment, capacity building and knowledge across sectors. The nature of the programmes means that some effects are likely to occur outside the healthcare sector; this breadth impacts on the choice of health and non-health outcomes to measure and value in an economic evaluation. Employing conventional outcome measures in evaluations of public health has been questioned. There are concerns that such measures are too narrow, overlook important dimensions of programme effect and, thus, lead to such interventions being undervalued. This issue is of particular importance for low-income and middle-income countries, which face considerable budget constraints, yet deliver a large proportion of health activities within public health programmes. The need to develop outcome measures, which include broader measures of quality of life, has given impetus to the development of a variety of new, holistic approaches, including Sen's capability framework and measures of subjective wellbeing. Despite their promise, these approaches have not yet been widely applied, perhaps because they present significant methodological challenges. This paper outlines the methodological challenges for the identification and measurement of broader outcomes of public health interventions in economic evaluation in low-income and middle-income countries.
Health Economics, 2016
This study reports the systematic development of a population-based health screening package for ... more This study reports the systematic development of a population-based health screening package for all Thai people under the universal health coverage (UHC). To determine major disease areas and health problems for which health screening could mitigate health burden, a consultation process was conducted in a systematic, participatory, and evidence-based manner that involved 41 stakeholders in a half-day workshop. Twelve diseases/health problems were identified during the discussion. Subsequently, health technology assessments, including systematic review and meta-analysis of health benefits as well as economic evaluations and budget impact analyses of corresponding population-based screening interventions, were completed. The results led to advice against elements of current clinical practice, such as annual chest X-rays and particular blood tests (e.g. kidney function test), and indicated that the introduction of certain new population-based health screening programs, such as for chronic hepatitis B, would provide substantial health and economic benefits to the Thais. The final results were presented to a wide group of stakeholders, including decision-makers at the Ministry of Public Health and the public health insurance schemes, to verify and validate the findings and policy recommendations. The package has been endorsed by the Thai UHC Benefit Package Committee for implementation in fiscal year 2016.
Journal of Comparative Effectiveness Research, 2012
This article aims to illustrate and critically analyze the results from the 1-year experience of ... more This article aims to illustrate and critically analyze the results from the 1-year experience of using health technology assessment (HTA) in the development of the Thai Universal Coverage health benefit package. We review the relevant documents and give a descriptive analysis of outcomes resulting from the development process in 2009-2010. Out of 30 topics nominated by stakeholders for prioritization, 12 were selected for further assessment. A total of five new interventions were recommended for inclusion in the benefit package based on value for money, budget impact, feasibility and equity reasons. Different stakeholders have diverse interests and capabilities to participate in the process. In conclusion, HTA is helpful for informing coverage decisions for health benefit packages because it enhances the legitimacy of policy decisions by increasing the transparency, inclusiveness and accountability of the process. There is room for improvement of the current use of HTA, including providing technical support for patient representatives and civic groups, better communication between health professionals, and focusing more on health promotion and disease prevention. Keywords: coverage and reimbursement approval process n developing countries n economic evaluation n health benefit package n health technology assessment n Thailand n universal coverage
Value in Health, 2012
To assess the budget impact of the government use licenses policy, a form of compulsory licensing... more To assess the budget impact of the government use licenses policy, a form of compulsory licensing used by the government, on seven patented drugs, namely, efavirenz, lopinavir/ritonavir combination, clopidogrel, letrozole, docetaxel, erlotinib, and imatinib, in Thailand between 2006 and 2008. Methods: By using government's perspective, budget impact was estimated within a 5-year period after the introduction of the policy. The number of patients who need treatment with each drug and the costs of treatments by both original and generic versions were obtained from Thai government agencies. Probabilistic sensitivity analysis was used to determine the impact of uncertainty surrounding parameters such as the numbers of patients and the health-care costs. Results: The study indicated that the use of generic drugs under the policy could save the government budget approximately $370 million over 5 years. It was also found that each drug had a different effect on budget saving depending on the number of patients treated, the difference in drug costs between original and generic drugs, and the lag time from the introduction of the policy to the availability of the generic drugs on the market. Conclusion: The study showed that the introduction of the government use licenses policy in Thailand would provide significant benefits for the study timeframe; however, there are several issues that should be taken into account when the government use licenses policy is adopted.
PLoS ONE, 2012
Background: Although public health guidelines have implications for resource allocation, these is... more Background: Although public health guidelines have implications for resource allocation, these issues were not explicitly considered in previous WHO pandemic preparedness and response guidance. In order to ensure a thorough and informed revision of this guidance following the H1N1 2009 pandemic, a systematic review of published and unpublished economic evaluations of preparedness strategies and interventions against influenza pandemics was conducted. Methods: The search was performed in September 2011 using 10 electronic databases, 2 internet search engines, reference list screening, cited reference searching, and direct communication with relevant authors. Full and partial economic evaluations considering both costs and outcomes were included. Conversely, reviews, editorials, and studies on economic impact or complications were excluded. Studies were selected by 2 independent reviewers. Results: 44 studies were included. Although most complied with the cost effectiveness guidelines, the quality of evidence was limited. However, the data sources used were of higher quality in economic evaluations conducted after the 2009 H1N1 pandemic. Vaccination and drug regimens were varied. Pharmaceutical plus non-pharmaceutical interventions are relatively cost effective in comparison to vaccines and/or antivirals alone. Pharmaceutical interventions vary from cost saving to high cost effectiveness ratios. According to ceiling thresholds (Gross National Income per capita), the reduction of nonessential contacts and the use of pharmaceutical prophylaxis plus the closure of schools are amongst the cost effective strategies for all countries. However, quarantine for household contacts is not cost effective even for low and middle income countries. Conclusion: The available evidence is generally inconclusive regarding the cost effectiveness of preparedness strategies and interventions against influenza pandemics. Studies on their effectiveness and cost effectiveness should be readily implemented in forthcoming events that also involve the developing world. Guidelines for assessing the impact of disease and interventions should be drawn up to facilitate these studies.
International Journal of Technology Assessment in Health Care, 2009
Objectives:This study aims to review the development of health technology assessment (HTA), inclu... more Objectives:This study aims to review the development of health technology assessment (HTA), including the socioeconomic context, outputs, and policy utilization in the Thai setting.Methods:This study was conducted through extensive document reviews including these published in both domestic and international literature.Results:Evidence suggests that contextual elements of the health system, especially the country's economic status and health financing reforms, as well as their effects on government budgeting for medical and public health services, played an important role in the increasing needs and demands for HTA information among policy makers. In the midst of substantial economic growth during the years 1982 to 1996, several studies reported the rapid diffusion and poor distribution of health technologies, and inequitable access to high-cost technology in public and private hospitals. At the same time, economic analysis and its underpinning concept of efficiency were suggest...
Health Research Policy and Systems, 2012
Background: Although it has been two decades since the Thai Patent Act was amended to comply with... more Background: Although it has been two decades since the Thai Patent Act was amended to comply with the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS), there has been little emphasis given to assessing the implications of this amendment. The purpose of this review is to summarize the health and economic impact of patent protection, with a focus on the experience of Thailand. Methods: A review of national and international empirical evidence on the health and economic implications of patents from 1980 to 2009 was undertaken. Results: The findings illustrate the role of patent protection in four areas: price, present access, future access, and international trade and investment. Forty-three empirical studies were found, three of which were from Thai databases. Patenting does increase price, although the size of effect differs according to the methodology and country. Although weakening patent rights could increase present access, evidence suggests that strengthening patenting may benefit future access; although this is based on complex assumptions and estimations. Moreover, while patent protection appears to have a positive impact on trade flow, the implication for foreign direct investment (FDI) is equivocal. Conclusions: Empirical studies in Thailand, and other similar countries, are rare, compromising the robustness and generalizability of conclusions. However, evidence does suggest that patenting presents a significant inter-temporal challenge in balancing aspects of current versus future access to technologies. This underlines the urgent need to prioritize health research resources to assess the wider implications of patent protection.
Globalization and Health, 2011
This paper attempts to describe and analyse the policy processes that led to the granting and imp... more This paper attempts to describe and analyse the policy processes that led to the granting and implementation of the government use licenses to enable the import and production of generic versions of medicines patented in Thailand. The decision to grant the series of government use licenses was taken despite much domestic and international controversy. The paper demonstrates that the policy processes leading to the granting of government use licenses are a successful application of the concept of "the triangle that moves the mountain". This is a wellknown conceptualisation of a philosophical and strategic approach to public policy advocacy in Thailand, which propounds that the effective bridging of three powers; a.) Knowledge and evidence generated by research and analysis, b.) Civil society movements and public support, and c.) Leadership of policy makers and politicians; in a synergistic "triangle" can move "mountains", meaning the resolution of seemingly insurmountable problems. The paper provides insights into the policy context for the decision and analyses the roles of key actors, their motivations and the policy processes in the country.
Globalization and Health, 2011
Background: Between 2006 and 2008, Thailand's Ministry of Public Health (MOPH) granted government... more Background: Between 2006 and 2008, Thailand's Ministry of Public Health (MOPH) granted government use licenses for seven patented drugs in order to improve access to these essential treatments. The decision to grant the government use licenses was contentious both within and beyond the country. In particular, concerns were highlighted that the negative consequences might outweigh the expected benefits of the policy. This study conducted assessments of the health and economic implications of these government use licenses. Methods: The health and health-related economic impacts were quantified in terms of i) Quality Adjusted Life Years (QALYs) gained and ii) increased productivity in US dollars (USD) as a result of the increased access to drugs. The study adopted a five-year timeframe for the assessment, commencing from the time of the grant of the government use licenses. Empirical evidence gathered from national databases was used to assess the changes in volume of exports after US Generalized System of Preferences (GSP) withdrawal and level of foreign direct investment (FDI). Results: As a result of the granting of the government use licenses, an additional 84,158 patients were estimated to have received access to the seven drugs over five years. Health gains from the use of the seven drugs compared to their best alternative accounted for 12,493 QALYs gained, which translates into quantifiable incremental benefits to society of USD132.4 million. The government use license on efavirenze was found to have the greatest benefit. In respect of the country's economy, the study found that Thailand's overall exports increased overtime, although exports of the three US GSP withdrawal products to the US did decline. There was also found to be no relationship between the government use licenses and the level of foreign investment over the period 2002 to 2008. Conclusions: The public health benefits of the government use licenses were generally positive. Specifically, the policy helped to increase access to patented drugs, while the impact of the US GSP withdrawal did not adversely affect the overall export status. Because the levels of benefit gained from the government use licenses varied widely between the seven drugs, depending on several factors, this study makes recommendations for the future implementation of the policy in order to maximise benefits.
BMC Public Health, 2012
In this paper, the authors share their experience on evidence utilization in the development of T... more In this paper, the authors share their experience on evidence utilization in the development of Thailand's maternal iodine supplementation policy in 2009-2010. Observations and reflections on their experience of engaging with research for policymaking are illustrated. The case study indicates that rapid approaches in conducting research, namely a targeted literature review and cross-sectional survey of professionals' opinions and current practices were efficient in achieving the timeliness of evidence provision. In addition pro-activity, trust and interaction between researchers and policymakers enhanced the research-policy integration. The Thai experience may be useful for other developing countries which pursue evidence-informed policymaking, despite differences in the health system context.
BMC Health Services Research, 2010
Background: Screening tests for cervical cancer are effective in reducing the disease burden. In ... more Background: Screening tests for cervical cancer are effective in reducing the disease burden. In Thailand, a Pap smear program has been implemented throughout the country for 40 years. In 2008 the Ministry of Public Health (MoPH) unexpectedly decided to scale up the coverage of free cervical cancer screening services, to meet an ambitious target. This study analyzes the processes and factors that drove this policy innovation in the area of cervical cancer control in Thailand. Methods: In-depth interviews with key policy actors and review of relevant documents were conducted in 2009. Data analysis was guided by a framework, developed on public policy models and existing literature on scaling-up health care interventions. Results: Between 2006 and 2008 international organizations and the vaccine industry advocated the introduction of Human Papillomavirus (HPV) vaccine for the primary prevention of cervical cancer. Meanwhile, a local study suggested that the vaccine was considerably less cost-effective than cervical cancer screening in the Thai context. Then, from August to December 2008, the MoPH carried out a campaign to expand the coverage of its cervical cancer screening program, targeting one million women. The study reveals that several factors were influential in focusing the attention of policymakers on strengthening the screening services. These included the high burden of cervical cancer in Thailand, the launch of the HPV vaccine onto the global and domestic markets, the country's political instability, and the dissemination of scientific evidence regarding the appropriateness of different options for cervical cancer prevention. Influenced by the country's political crisis, the MoPH's campaign was devised in a very short time. In the view of the responsible health officials, the campaign was not successful and indeed, did not achieve its ambitious target. Conclusion: The Thai case study suggests that the political crisis was a crucial factor that drew the attention of policymakers to the cervical cancer problem and led the government to adopt a policy of expanding coverage of screening services. At the same time, the instability in the political system impeded the scaling up process, as it constrained the formulation and implementation of the policy in the later phase.
BMC Health Services Research, 2010
This study aims to illustrate the processes to determine medicine patent status in developing cou... more This study aims to illustrate the processes to determine medicine patent status in developing countries by using oncology medicine in Thailand as a case study. From 88 active ingredients, 31 active ingredients were found to have been filed for patent protection in Thailand, while seven medicines were unable to be verified as being patented. Patent identification is very complex and time-consuming, which leads to the inability to identify patented medicine. As such, developing countries may therefore find that they pay more than required for some medicines simply due to this lack of information. Government authorities in developing countries should therefore strengthen their systems for gathering, validating and disseminating patent information for pharmaceuticals to ensure that disclosure is on par with the developed world.
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Papers by Inthira Yamabhai