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Phase III Palbociclib With Endocrine Therapy vs. Capecitabine in HR+/HER2- MBC With Resistance to Aromatase Inhibitors — PEARL  

Metastatic Breast Cancer Clinical Trial

Official title:
Phase III Study of Palbociclib in Combination With Exemestane or Fulvestrant vs. Chemotherapy (Capecitabine) in Hormonal Receptor Positive/HER2 Negative Metastatic Breast Cancer Patients With Resistance to Aromatase Inhibitors

Clinical Trial Summary

This is an international (4 countries) randomized phase III study with 2 cohorts, patients will be randomized 1:1 to endocrine therapy (cohort 1: exemestane 25 mg daily, cohort 2: fulvestrant 500mg days 1 and 15 cycle 1 and then day 1 every 4 weeks) plus palbociclib (125 mg daily x3 weeks every 4 weeks) vs. capecitabine (1,250 mg/m2 twice daily x2 weeks every 3 weeks). Postmenopausal patients with HR+/HER2 MBC are eligible if resistant to previous nonsteroidal aromatase inhibitors (NSAI) (letrozole or anastrozole) in cohort 1 or previous aromatase inhibitors (AI) (letrozole, anastrozole or exemestane) in cohort 2 defined as: recurrence while on or within 12 months after the end of adjuvant treatment with NSAI/AI or progression while on or within 1 month after the end of treatment with NSAI/AI for MBC. Previous chemotherapy is permitted either in the (neo)adjuvant setting and/or as first line for MBC. Patients must have measurable disease according to RECIST 1.1 or bone lesions, lytic or mixed, in the absence of measurable disease.

Clinical Trial Description

296 patients have been randomized 1:1 between the experimental arm (Arm A: approximately 125 patients treated with palbociclib plus exemestane) and the control arm (Arm B: approximately 125 patients treated with capecitabine) before the approval of this protocol version (Cohort 1). Approximately 300 patients will be randomized 1:1 between the experimental arm (Arm A: approximately 150 patients treated with palbociclib plus fulvestrant) and the control arm (Arm B: approximately 150 patients treated with capecitabine) from the approval of this protocol version (Cohort 2). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02028507
Study type Interventional
Source Spanish Breast Cancer Research Group
Contact
Status Completed
Phase Phase 3
Start date March 13, 2014
Completion date January 11, 2021
View Details
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