Pharma Patent Cliffby readouts.io
Loss of exclusivity · US · Other areas

Respiratory, rare disease and other drugs losing patent protection

Which drugs in other areas go off patent, and when?

7 blockbuster drugs in other areas with about $33.0B in 2025 worldwide sales lose US exclusivity between 2025 and 2037, led by Trikafta (Vertex, $10.3B). 2 lose it in 2025 or 2026; the biggest single year is 2037, with $10.3B.

Other areas drugs tracked
72 losing exclusivity by 2026
2025 worldwide sales
≈$33.0B7.6% of the tracked cliff · #4 of 7 areas
Next five years
$6.3B2 drugs, 2027–2031
Most exposed company
Vertex86% of 2025 revenue

Other areas sales losing US exclusivity, by year

2025 worldwide sales of each drug, placed in the year its first US generic or biosimilar can launch. Select a year for every drug going off patent that year.

The 7 drugs in other areas

DrugCompanyUS LOE2025 salesDate basisUS copiesMedicare price
Prolia Amgen 2025 $4.4B Biosimilars launched Copies on the US market –
Opsumit Johnson & Johnson 2026 $2.3B Generics launched Copies on the US market –
Trelegy GSK 2027 ≈$3.9B Patent-expiry estimate No US filing found 2027 · −73%
Reblozyl Bristol Myers Squibb 2031 $2.3B Company guidance No US filing found –
Vabysmo Roche 2034 ≈$4.9B Patent-expiry estimate No US filing found –
Ultomiris AstraZeneca 2035 $4.7B Company guidance No US filing found –
Trikafta Vertex 2037 $10.3B Patent-expiry estimate No US filing found –

Sorted by the year US exclusivity ends. Each drug's page has the sources.

Companies most exposed in other areas

CompanyDrugs2025 revenue from themShare of company
VertexTrikafta$10.3B86%
RocheVabysmo≈$4.9B6.7%
AstraZenecaUltomiris$4.7B8%
AmgenProlia$4.4B12%
GSKTrelegy≈$3.9B9.1%
Johnson & JohnsonOpsumit$2.3B2.5%
Bristol Myers SquibbReblozyl$2.3B4.8%

For shared drugs, each company is credited with the revenue it reports, so nothing is counted twice. Share is of the company's total 2025 revenue.

Medicare price negotiation

Trelegy (2027, −73%) was selected for Medicare price negotiation. See every negotiated Medicare price →

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Pharma Patent Cliff by readouts.io. "Respiratory, rare disease and other drugs losing patent protection." Updated 8 October 2026. https://pharmapatentcliff.com/areas/other

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