Merck's non-oncology diversification to cushion looming Keytruda patent cliff
Merck faces a 57% revenue drop for Keytruda by 2032 due to patent expirations. GlobalData forecasts non-oncology portfolio growth to double in six years, offsetting the decline. This diversification is expected to drive overall revenue growth, according to the report.
How this was made

The 30-second read
Why it matters
The forecast highlights a significant revenue gap that may depress the stock unless diversification materializes.
Market read
Merck's future earnings outlook is under pressure due to a major drug patent cliff; investors may adjust valuations.
What to watch
Potential partnership or acquisition opportunities in the non‑oncology space that could accelerate revenue growth.
Background
Merck faces a looming patent expiration for its blockbuster immunotherapy Keytruda, prompting analysts to examine diversification strategies.
Ticker impact
GlobalData forecasts Keytruda revenue to fall 57% by 2032 and predicts Merck's non‑oncology portfolio will double in six years, implying a strategic shift.
likely downward pressure as investors reassess future earnings outlook
Revenue loss from Keytruda is sizable; diversification benefits are long‑term and uncertain, creating near‑term risk.
Market effects
Signals potential pressure on the broader oncology biotech sector as a leading drug faces patent cliffs.
U.S. pharma stocks may see modest re‑rating pending further guidance.
Limited; primarily affects Merck and its peers.
Counterpoint
The non‑oncology expansion could unlock new growth avenues that offset the Keytruda decline faster than projected.
Key entities
- companyMerck & Co.
US‑listed pharmaceutical giant (ticker MRK).
- research_firmGlobalData
Provider of the forecast data cited in the article.



