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Merck's Keytruda: A lifesaving drug, a global divide

DW English · May 6, 2026, 3:00 AM · Also reported by 1 other source

Key takeaways

  • A cross-border investigation by DW and ICIJ reveals how pricing and patents helped turn a life-saving medicine into one of the world's best selling drugs while leaving many patients struggling to access it.
  • https://p.dw.com/p/5C0YTThe cancer drug in question is manufactured by the US-based company Merck Image: Rafael Henrique/SOPA Images/Sipa USA/picture alliance Advertisement.
  • The Cancer Calculus, coordinated by the International Consortium of Investigative Journalists (ICIJ) with Deutsche Welle and 46 media partners, brought together 124 journalists in 37 countries.

Why this matters: an international story with cross-border implications worth tracking.

A cross-border investigation by DW and ICIJ reveals how pricing and patents helped turn a life-saving medicine into one of the world's best selling drugs while leaving many patients struggling to access it.

https://p.dw.com/p/5C0YTThe cancer drug in question is manufactured by the US-based company Merck Image: Rafael Henrique/SOPA Images/Sipa USA/picture alliance Advertisement. A yearlong international investigation into one of the world's most important cancer drugs shows how a medical breakthrough has also become a fault line in global health, exposing how pricing systems, patent protections and regulatory frameworks determine who can access life-saving treatment and who cannot.

The Cancer Calculus, coordinated by the International Consortium of Investigative Journalists (ICIJ) with Deutsche Welle and 46 media partners, brought together 124 journalists in 37 countries. Drawing on hundreds of interviews with oncologists, patients and their families, lawyers, regulators, pharmacists, pharmaceutical industry insiders and others as well as exclusive pricing data and patent analyses, the project examines how Merck's cancer drug Keytruda became both a therapeutic milestone and a symbol of unequal access. ICIJ's media partners also obtained public health records, meeting minutes, and pricing and reimbursement data through at least 1,018 public records requests across 27 countries.

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