CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 281 enrolled
Drug / intervention
Paclitaxel + bevacizumab therapy +1 moredrug
Likely dose
Paclitaxel + bevacizumab therapy 90mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04732598
NCT04732598Phase 3Completed

A Phase III, Randomized Study of Bevacizumab and Paclitaxel in Combination With Atezolizumab as a Treatment for Patients With Locally Advanced Unresectable or Metastatic Hormone Receptor-positive HER2 Negative Breast Cancer

Japanese Foundation for Cancer Research·interventional·Posted Feb 1, 2021·Updated Apr 21, 2026

In Brief

A Phase 3 clinical trial evaluating Paclitaxel + bevacizumab therapy and Paclitaxel + bevacizumab + atezolizumab for Breast Cancer. Completed, enrolled 281 participants across 1 site.

Detailed Summary

JCOG1919E (AMBITION) is a randomized, open-label, phase 3 trial to evaluate efficacy and safety of bevacizumab and paclitaxel in combination with atezolizumab comparing to bevacizumab and paclitaxel in patients with HR-positive HER2 negative metastatic breast cancer.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsBreast Cancer
CountriesJapan

Timeline

Phase 3CompletedFinished
202120222023202420252026
First PostedFeb 1, 2021
Enrollment StartJan 21, 2021
Primary CompletionSep 12, 2025
Study CompletionMar 13, 2026
TodayJul 2, 2026
Enrollment to primary: 4.6 yearsPosted 5.4 years ago

Interventions

Paclitaxel + bevacizumab therapydrug

The following regimen will be continued as a 28-day course until disease progression or the criteria for treatment discontinuation are met. \[Paclitaxel\] 90mg/m\^2, day1,8,15, IV \[Bevacizumab\] 10mg/kg, day1,15, IV

Paclitaxel + bevacizumab + atezolizumabdrug

The following regimen will be continued as a 28-day course until disease progression or the criteria for treatment discontinuation are met. \[Atezolizumab\] 840 mg/body, day 1,15, IV \[Paclitaxel\] 90mg/m\^2, day1,8,15, IV \[Bevacizumab\] 10mg/kg, day1,15, IV