• Pfizer's Ibrance, combined with anti-HER2 and endocrine therapies, significantly improved progression-free survival in HR+, HER2+ metastatic breast cancer patients.
• The Phase 3 PATINA trial showed a median PFS of 44.3 months with the Ibrance combination, compared to 29.1 months with anti-HER2 and endocrine therapies alone.
• The Ibrance combination demonstrated a manageable safety profile, with common adverse events including neutropenia, leukopenia, fatigue, stomatitis, and diarrhea.
• These findings suggest Ibrance may overcome resistance to existing therapies and could become a new standard of care for this specific breast cancer subtype.