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A Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of Giredestrant Plus Palbociclib Compared With Anastrozole Plus Palbociclib for Postmenopausal Women With Estrogen Receptor-Positive and HER2-Negative Untreated Early Breast Cancer (coopERA Breast Cancer)

NCT04436744 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 221

Last updated 2023-02-02

Study results available
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Summary

This is a randomized, multicenter, open-label, two-arm, Phase II study to evaluate the efficacy, safety, and pharmacokinetics of giredestrant versus anastrozole (in the window-of-opportunity phase) and giredestrant plus palbociclib compared with anastrozole plus palbociclib (in the neoadjuvant phase) in postmenopausal women with untreated, estrogen receptor (ER)-positive, human epidermal growth factor receptor-2 (HER2)-negative, early breast cancer.

The study consists of a screening period of up to 28 days, a window-of-opportunity phase for 14 days, followed by a neoadjuvant treatment phase for 16 weeks (four 28-day cycles), surgery, and an end of study visit (28 days after the final dose of study treatment).

Conditions

  • Early Breast Cancer

Interventions

DRUG

Giredestrant

During the window-of-opportunity phase (first 2 weeks) giredestrant will be taken orally once per day (QD) as a single agent. During the neoadjuvant treatment phase, giredestrant will be taken orally QD on Days 1-28 of each 28-day cycle for a total of 4 cycles, in combination with palbociclib.

DRUG

Anastrozole

During the window-of-opportunity phase (first 2 weeks), anastrozole 1 mg will be taken orally QD as a single agent. During the neoadjuvant treatment phase, anastrozole 1 mg will be taken orally QD on Days 1-28 of each 28-day cycle for a total of 4 cycles, in combination with palbociclib.

DRUG

Palbociclib

During the neoadjuvant treatment phase, palbociclib 125 mg will be taken orally QD on Days 1-21 of a 28-day cycle for a total of 4 cycles.

PROCEDURE

Surgery

Surgery must be performed within a maximum of 14 days after the final cycle in the neoadjuvant treatment phase and ideally should occur as soon as possible after the last dose of study treatment.

Sponsors & Collaborators

Principal Investigators

  • Clinical Trials · Hoffmann-La Roche

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-09-04
Primary Completion
2021-07-06
Completion
2021-11-24
FDA Drug
Yes

Countries

  • United States
  • Australia
  • Brazil
  • Germany
  • Hungary
  • Poland
  • Russia
  • South Korea
  • Spain
  • Taiwan
  • Ukraine

Study Locations

More Related Trials

Entities

Drugs
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04436744 on ClinicalTrials.gov