An Analysis of Possible Reference Countries for a US Most-Favored Nation Policy and Implications of Differences in Cost of Living on Global Drug Pricing Policies
Author(s)
Andrew Mumford, BSc1, Reece Coleman, Apprentice2, Harry Lewis, BA3.
1Initiate Consultancy, Northampton, United Kingdom, 2Initiate Consultancy, London, United Kingdom, 3Initiate Consultancy, Alderton, United Kingdom.
1Initiate Consultancy, Northampton, United Kingdom, 2Initiate Consultancy, London, United Kingdom, 3Initiate Consultancy, Alderton, United Kingdom.
OBJECTIVES: This analysis investigates how differences in cost of living across countries which might feasibly be referenced in a US ‘most-favoured nation’ (MFN) pricing policy, henceforth ‘MFN countries’, relate to pharmaceutical pricing and access to medicines. By comparing the US to peer nations with centralised pricing systems, we highlight disparities in affordability and access. The analysis also considers how recent US policies, including the Inflation Reduction ACT (IRA), may influence pricing equity.
METHODS: We conducted a comparative analysis of cost of living indices and drug prices across MFN countries, using publicly available data from Visual Capitalist and OECD sources. The US was used as a benchmark to measure the cost of living of other countries. We examined whether differences such as this one are proportionately reflected in drug prices and assessed the role of centralised pricing mechanisms, such as health technology assessment (HTA)-driven reimbursement in the UK, versus the historically decentralised US model.
RESULTS: Despite the cost of living being only 11% lower in the UK, drug prices there are often 60-70% lower than US Medicare prices. This disparity suggests that pricing is not solely driven by economic conditions, but by structural policy differences. Countries such as the UK with centralised HTA systems tie reimbursement to cost-effectiveness threshold, prompting equitable access. In contrast, the US lacks such mechanisms outside of recent Medicare reforms, contributing to high costs and access barriers for uninsured or underinsured populations.
CONCLUSIONS: This disconnect between cost of living and drug prices in the US highlights systemic inequities in access. As Medicare begins to negotiate prices under the IRA, prices could become more aligned with value and affordability, which could enhance equity. However, without broader structural reform, high prices will continue to limit access for vulnerable populations.
METHODS: We conducted a comparative analysis of cost of living indices and drug prices across MFN countries, using publicly available data from Visual Capitalist and OECD sources. The US was used as a benchmark to measure the cost of living of other countries. We examined whether differences such as this one are proportionately reflected in drug prices and assessed the role of centralised pricing mechanisms, such as health technology assessment (HTA)-driven reimbursement in the UK, versus the historically decentralised US model.
RESULTS: Despite the cost of living being only 11% lower in the UK, drug prices there are often 60-70% lower than US Medicare prices. This disparity suggests that pricing is not solely driven by economic conditions, but by structural policy differences. Countries such as the UK with centralised HTA systems tie reimbursement to cost-effectiveness threshold, prompting equitable access. In contrast, the US lacks such mechanisms outside of recent Medicare reforms, contributing to high costs and access barriers for uninsured or underinsured populations.
CONCLUSIONS: This disconnect between cost of living and drug prices in the US highlights systemic inequities in access. As Medicare begins to negotiate prices under the IRA, prices could become more aligned with value and affordability, which could enhance equity. However, without broader structural reform, high prices will continue to limit access for vulnerable populations.
Conference/Value in Health Info
2025-11, ISPOR Europe 2025, Glasgow, Scotland
Value in Health, Volume 28, Issue S2
Code
HPR21
Topic
Economic Evaluation, Health Policy & Regulatory, Health Technology Assessment
Topic Subcategory
Pricing Policy & Schemes, Reimbursement & Access Policy
Disease
No Additional Disease & Conditions/Specialized Treatment Areas