Status:

RECRUITING

Study of PF-07220060 With Letrozole in Adults With HR-positive HER2-negative Breast Cancer Who Have Not Received Anticancer Treatment for Advanced/Metastatic Disease

Lead Sponsor:

Pfizer

Conditions:

Breast Cancer

Eligibility:

All Genders

18+ years

Phase:

PHASE3

Brief Summary

The purpose of this study is to determine the safety and efficacy of PF-07220060 with letrozole compared to approved treatments (ie, palbociclib, ribociclib or abemaciclib with letrozole) in people wi...

Eligibility Criteria

Inclusion

  • Histological confirmation of breast cancer with evidence of locally advanced or metastatic disease, which is not amenable to surgical resection or radiation therapy with curative intent.
  • Documented estrogen receptor (ER) and/or progesterone receptor (PR)-positive tumor
  • Documented HER2-negative tumor
  • Previously untreated with any systemic anticancer therapy for their locally advanced or metastatic disease.
  • Measurable disease or non-measurable bone only disease as defined by RECIST version 1.1

Exclusion

  • In visceral crisis at risk of immediately life-threatening complications in the short term.
  • Current or past history of central nervous system metastases.
  • Have received prior (neo)adjuvant endocrine therapy (ET) and had recurrence during or within 12 months after the last dose of ET.
  • Have received prior (neo)adjuvant CDK4/6i and had recurrence during or within 12 months after the last dose of CDK4/6i.
  • Inadequate renal function, hepatic dysfunction, or hematologic abnormalities.

Key Trial Info

Start Date :

January 6 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

December 29 2037

Estimated Enrollment :

1020 Patients enrolled

Trial Details

Trial ID

NCT06760637

Start Date

January 6 2025

End Date

December 29 2037

Last Update

March 2 2026

Active Locations (518)

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Page 1 of 130 (518 locations)

1

The Kirklin Clinic of UAB Hospital

Birmingham, Alabama, United States, 35233

2

The University of Alabama at Birmingham

Birmingham, Alabama, United States, 35249

3

University of Alabama at Birmingham Hospital

Birmingham, Alabama, United States, 35249

4

Ironwood Cancer & Research Centers

Chandler, Arizona, United States, 85224