Info

PALOMA-3

  • Overall Survival with Palbociclib and Fulvestrant in Advanced Breast Cancer
  • N Engl J Med 2018; 379:1926-1936

The Effect of Palbociclib on Overall Survival in Hormone-Receptor-Positive, HER2-Negative Advanced Breast Cancer: A Prespecified Analysis by Endocrine Sensitivity, Visceral Metastases, and Age

  1. Design:

    • Phase: III
    • Randomized
    • Double-blind
    • Multicenter
  2. Number of Patients: 521

  3. Patients Characteristics:

    • Hormone-receptor-positive
    • HER2-negative
    • Advanced breast cancer
    • Progression or relapse during previous endocrine therapy
  4. Agent:

    • Palbociclib plus fulvestrant or placebo plus fulvestrant
  5. Treatment Line: Advanced breast cancer

  6. Trial Name: PALOMA-3 (NCT01942135)

  7. Comparison of two groups:

    Outcome MeasurePalbociclib-FulvestrantPlacebo-Fulvestrant
    Progression-free survival9.5 months4.6 months
    Overall survival34.9 months28.0 months
    Response rate42.1%28.3%
  8. Other findings:

    • No new safety signals were observed with 44.8 months of follow-up.
    • The median duration of subsequent therapy was similar in the two groups.
    • The median time to receipt of chemotherapy was 17.6 months in the palbociclib-fulvestrant group, compared with 8.8 months in the placebo-fulvestrant group.
  9. Summary: The clinical trial results demonstrate that treatment with palbociclib-fulvestrant resulted in significantly longer overall survival in patients with hormone-receptor-positive, HER2-negative advanced breast cancer who had sensitivity to previous endocrine therapy. The study provides evidence for the use of palbociclib in combination with fulvestrant as a standard treatment option for this patient population.