Drug pricing reform and government negotiation mandates (IRA Medicare negotiation starting 2026) compressing pricing power on high-revenue products
Patent cliff exposure with Eliquis, Ibrance, and other blockbusters facing generic competition 2026-2030, requiring $20B+ in revenue replacement from pipeline
Regulatory approval risk and clinical trial failures, with oncology trials carrying 10-15% phase 3 success rates industry-wide
Intense competition in oncology from Merck (Keytruda), Bristol-Myers Squibb, and emerging biotech with novel mechanisms
Biosimilar erosion of established biologics portfolio, particularly in international markets with faster biosimilar adoption
Loss of commercial partnerships or co-promotion agreements (e.g., Bristol-Myers Squibb on Eliquis) affecting revenue retention
Elevated debt levels ($60B+ gross debt) from Seagen acquisition requiring deleveraging, limiting near-term M&A flexibility
Pension and post-retirement benefit obligations creating non-cash charges and funding requirements in rising rate environments
Currency exposure with 40-45% international sales creating translation headwinds when USD appreciates
StructuralCompetitiveBalance Sheet