Research Letter

International Availability and Price of Ultraexpensive Drugs in Medicare Part D

JAMA Network Open 10.1001/jamanetworkopen.2026.10053

May 01, 2026 at 11:00 AM EDT

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This cohort study characterizes ultraexpensive drugs in Medicare Part D and examines their availability and relative prices across industrialized countries.

Corresponding Author: So-Yeon Kang, PhD, MBA, Department of Health Management and Policy, Georgetown University School of Health, 3700 Reservoir Rd NW, Washington, DC 20007 (soyeon.kang@georgetown.edu).

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