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Completed Phase 3 Interventional Results available

A Study To Evaluate the Efficacy and Safety Of Atezolizumab or Placebo in Combination With Neoadjuvant Doxorubicin + Cyclophosphamide Followed By Paclitaxel + Trastuzumab + Pertuzumab In Early Her2-Positive Breast Cancer

ClinicalTrials.gov ID: NCT03726879

Public ClinicalTrials.gov record NCT03726879. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced May 6, 2026, 8:18 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase III, Randomized, Double-Blind, Placebo-Controlled Clinical Trial To Evaluate the Efficacy and Safety Of Atezolizumab or Placebo in Combination With Neoadjuvant Doxorubicin + Cyclophosphamide Followed By Paclitaxel + Trastuzumab + Pertuzumab In Early Her2-Positive Breast Cancer

Study identification

NCT ID
NCT03726879
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Hoffmann-La Roche
Industry
Enrollment
454 participants

Conditions and interventions

Conditions

Interventions

  • Atezolizumab Drug
  • Cyclophosphamide Drug
  • Doxorubicin Drug
  • Paclitaxel Drug
  • Pertuzumab Drug
  • Placebo Drug
  • Trastuzumab Drug
  • Trastuzumab Emtansine Drug

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jan 10, 2019
Primary completion
Feb 4, 2021
Completion
Aug 23, 2023
Last update posted
Nov 4, 2024

2019 – 2023

United States locations

U.S. sites
3
U.S. states
3
U.S. cities
3
Facility City State ZIP Site status
HCA Midwest Division Kansas City Missouri 64132
New York University Medical Center PRIME; NYU Langone Medical Center New York New York 10016
Tennessee Oncology - Nashville Nashville Tennessee 37203

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 73 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03726879, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Nov 4, 2024 · Synced May 6, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03726879 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →