• A decade after the first biosimilar approval, these drugs have generated $36 billion in healthcare savings, though adoption rates vary significantly across different molecules and therapeutic areas.
• Market dynamics show complex patterns, with some biosimilars achieving up to 89% market share, while others struggle below 40%, influenced by PBM policies and brand-name manufacturer strategies.
• The biosimilar landscape faces new challenges in 2025, with upcoming launches for Stelara and rare disease treatments, while PBM influence continues to shape market access and adoption patterns.