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NCT04305496 · OUTCOME

Progression Free Survival: Altered Population (Months) in the China Cohort

Capivasertib+Fulvestrant vs Placebo+Fulvestrant as Treatment for Locally Advanced (Inoperable) or Metastatic HR+/HER2- Breast Cancer · Source last updated 2026-04-30

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
MEDIAN
Unit
Months
Interval / dispersion
95% Confidence Interval
Time frame
Assessed every 8 weeks for the first 2 years following objective disease progression or treatment discontinuation and then every 12 weeks.

What was measured

Progression free survival (PFS), defined as the time from randomization until progression per RECIST v1.1, as assessed by the investigator at the local site, or death due to any cause.

Analysis population: Altered subgroup full analysis set in the China cohort

Groups in this outcome

Capivasertib + Fulvestrant (Global + China Cohort)

Capivasertib: 400 mg twice daily (2 tablets of 200 mg taken orally twice daily; total daily dose 800 mg) given on an intermittent weekly dosing schedule (4 days on/3 days off). Fulvestrant: 500 mg (2 intramuscular injections of 250 mg/5 mL solution) on Day 1 of Weeks 1 and 3 of Cycle 1, and then on Day 1, Week 1 of each cycle thereafter.

Placebo + Fulvestrant (Global + China Cohort)

Placebo: Placebo tablets matching capivasertib. 400 mg twice daily (2 tablets of 200 mg taken orally twice daily; total daily dose 800 mg) given on an intermittent weekly dosing schedule (4 days on/3 days off). Fulvestrant: 500 mg (2 intramuscular injections of 250 mg/5 mL solution) on Day 1 of Weeks 1 and 3 of Cycle 1, and then on Day 1, Week 1 of each cycle thereafter.

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Capivasertib + Fulvestrant (Global + China Cohort)71
Placebo + Fulvestrant (Global + China Cohort)63

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Capivasertib + Fulvestrant (Global + China Cohort)5.7Not reported3.88.0Not reported
Placebo + Fulvestrant (Global + China Cohort)1.9Not reported1.83.7Not reported

Source statistical analyses

Group order, estimate direction, methods and comments are retained. No treatment ranking is inferred.

  1. ci Lower Limit
    0.19
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.85
    group Ids
    1. OG000
    non Inferiority Type
    SUPERIORITY
    p Value
    0.016
    param Type
    Hazard Ratio (HR)
    param Value
    0.41
    statistical Method
    Stratified log rank test
Complete source fields
analyses
  1. ci Lower Limit
    0.19
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.85
    group Ids
    1. OG000
    non Inferiority Type
    SUPERIORITY
    p Value
    0.016
    param Type
    Hazard Ratio (HR)
    param Value
    0.41
    statistical Method
    Stratified log rank test
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        3.8
        upper Limit
        8.0
        value
        5.7
      2. group Id
        OG001
        lower Limit
        1.8
        upper Limit
        3.7
        value
        1.9
denoms
  1. counts
    1. group Id
      OG000
      value
      71
    2. group Id
      OG001
      value
      63
    units
    Participants
description
Progression free survival (PFS), defined as the time from randomization until progression per RECIST v1.1, as assessed by the investigator at the local site, or death due to any cause.
dispersion Type
95% Confidence Interval
groups
  1. description
    Capivasertib: 400 mg twice daily (2 tablets of 200 mg taken orally twice daily; total daily dose 800 mg) given on an intermittent weekly dosing schedule (4 days on/3 days off). Fulvestrant: 500 mg (2 intramuscular injections of 250 mg/5 mL solution) on Day 1 of Weeks 1 and 3 of Cycle 1, and then on Day 1, Week 1 of each cycle thereafter.
    id
    OG000
    title
    Capivasertib + Fulvestrant (Global + China Cohort)
  2. description
    Placebo: Placebo tablets matching capivasertib. 400 mg twice daily (2 tablets of 200 mg taken orally twice daily; total daily dose 800 mg) given on an intermittent weekly dosing schedule (4 days on/3 days off). Fulvestrant: 500 mg (2 intramuscular injections of 250 mg/5 mL solution) on Day 1 of Weeks 1 and 3 of Cycle 1, and then on Day 1, Week 1 of each cycle thereafter.
    id
    OG001
    title
    Placebo + Fulvestrant (Global + China Cohort)
param Type
MEDIAN
population Description
Altered subgroup full analysis set in the China cohort
reporting Status
POSTED
time Frame
Assessed every 8 weeks for the first 2 years following objective disease progression or treatment discontinuation and then every 12 weeks.
title
Progression Free Survival: Altered Population (Months) in the China Cohort
type
PRIMARY
unit Of Measure
Months

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice