Original Investigation

Physical Accessibility of Medicines in Countries Hosting Trials for FDA Approvals

JAMA Internal Medicine 10.1001/jamainternmed.2025.6060

November 17, 2025 at 11:00 AM EST

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Are medicines physically accessible in the countries where they are tested for US Food and Drug Administration (FDA) approval, and has physical access improved over time?In this cross-sectional study of 172 medicines approved by the FDA from 2015 to 2018 and tested in 89 countries, 24% were physically accessible in all countries where they were tested 5 years after FDA approval. Countries in Western Europe had notably better access (82%) than countries in Africa (28%), with no improvements over time for low- and middle-income countries.Most countries participating in trials for FDA approvals cannot physically access the medicines they test, particularly low- and middle-income countries, raising exploitation concerns, with no improvements over time.

Corresponding Author: Jennifer E. Miller, PhD, General Internal Medicine, Yale School of Medicine, 367 Cedar St, 4th Floor, New Haven, CT 06510 (jennifer.e.miller@yale.edu).

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