Clinical Trial of Atezolizumab With Paclitaxel, Trastuzumab, and Pertuzumab in Patients With Metastatic HER-2 Positive Breast Cancer

NCT03125928 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 16

Last updated 2026-05-22

No results posted yet for this study

Summary

This is a single arm, Phase IIA clinical trial assessing the safety and efficacy of atezolizumab in combination with paclitaxel, trastuzumab, and pertuzumab in 50 patients with locally advanced, unresectable, or metastatic HER2-overexpressing breast cancer. Due to concerns that corticosteroids may have a negative effect on tumor immunity expected with addition of atezolizumab to the standard of care regimen, patients will receive premedication with dexamethasone only for weeks 1 and 2 of the weekly paclitaxel, and then corticosteroid premedication will be discontinued subsequently.

Patients must have pathologically confirmed HER2-overexpressing breast cancer that is locally recurrent, unresectable, or metastatic, with measurable disease as defined by RECIST v1.1. Tumor measurements and bone scans will be performed every 9 weeks while patients are on study.

Conditions

Interventions

DRUG

Atezolizumab

Monoclonal antibody

DRUG

Paclitaxel

Chemotherapy

DRUG

Trastuzumab

Monoclonal antibody

DRUG

Pertuzumab

Monoclonal antibody

Sponsors & Collaborators

  • Genentech, Inc.

    collaborator INDUSTRY
  • Fox Chase Cancer Center

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-06-13
Primary Completion
2026-12-31
Completion
2027-12-31
FDA Drug
Yes

Countries

  • United States

Study Locations

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Entities

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 NCT03125928 on ClinicalTrials.gov