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22 September 2025NewsAmericasMarisa Woutersen

MSD scores second win in patent fight over Keytruda

The pharma giant invalidates a university's patent while gaining FDA approval for a new subcutaneous version of Keytruda as it protects its $29.5-billion-a-year cancer drug ahead of a looming patent cliff.

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Americas
1 April 2025   MSD, Novartis and Eli Lilly are among those whose multi-billion-dollar patents are hurtling towards expiration, writes Marisa Woutersen.
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8 February 2024   Senator criticises patent thickets and ‘monopolies’ ahead of senate hearing convened to interrogate CEOs | Sales of MSD’s blockbuster cancer treatment Keytruda rival McDonald’s annual revenue, says report.
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1 December 2022   Ex-partners collaborated on a clinical study for a cancer treatment | Pharma firm insists that it has exclusive licensing rights | MSD | John Hopkins.