CI

At a glance

ClinicalIndex Comparison Record
Phase 3Active· 818 enrolled
Drug / intervention
Fulvestrant +2 moredrug
Likely dose
Fulvestrant 500 mgfrom 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/NCT04305496
NCT04305496Phase 3Active

A Phase III Double-blind Randomised Study Assessing the Efficacy and Safety of Capivasertib + Fulvestrant Versus Placebo + Fulvestrant as Treatment for Locally Advanced (Inoperable) or Metastatic Hormone Receptor Positive, Human Epidermal Growth Factor Receptor 2 Negative (HR+/HER2-) Breast Cancer Following Recurrence or Progression On or After Treatment With an Aromatase Inhibitor

AstraZeneca·interventional·Posted Mar 12, 2020·Updated Apr 30, 2026

In Brief

A Phase 3 clinical trial evaluating Fulvestrant, Capivasertib, and 1 other intervention for Locally Advanced (Inoperable) or Metastatic Breast Cancer. Active but no longer recruiting, targeting 818 participants across 215 sites in 19 countries.

Detailed Summary

Phase III, double-blind, randomised study assessing the efficacy of capivasertib + fulvestrant vs placebo + fulvestrant for the treatment of patients with locally advanced (inoperable) or metastatic HR+/HER2- breast cancer following recurrence or progression on or after AI therapy.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesArgentina, Australia, Belgium, Canada, China, France, Germany, Hungary, Israel, Italy, Japan, Peru, Poland, Russia, South Korea, Spain, Taiwan, United Kingdom, United States
Collaborators--

Timeline

Phase 3ActiveOverdue
202120222023202420252026
First PostedMar 12, 2020
Enrollment StartApr 16, 2020
Primary CompletionMay 9, 2023
Study CompletionJun 22, 2026
TodayJul 2, 2026
Enrollment to primary: 3.1 yearsPosted 6.3 years ago

Interventions

Fulvestrantdrug

Patients will be administered 500 mg (2 injections) on Day 1 of Weeks 1 and 3 of Cycle 1, and then on Day 1, Week 1 of each cycle thereafter

Capivasertibdrug

400 mg BD (2 tablets of 200 mg taken twice a day = total daily dose 800 mg) given on an intermittent weekly dosing schedule. Patients will be dosed on Days 1 to 4 in each week of a 28-day treatment cycle

Placebodrug

Placebo to match 400 mg BD (2 tablets of placebo to match 200 mg taken twice daily = placebo to match total daily dose of 800 mg) given on an intermittent weekly dosing schedule. Patients will be dosed on Days 1 to 4 in each week of a 28-day treatment cycle