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NCT04305496 · OUTCOME

Progression Free Survival: Overall Population (Months) in the Global 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 18 months and every 12 weeks thereafter, from randomization to radiological progression.

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, in the global cohort. Participants who discontinue treatment prior to progression should continue to be scanned until progression. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) as at least a 20% increase in the sum of the longest diameter of target lesions (short axis diameter used for lymph nodes), or clinically significant increase in a non-target lesion, or the appearance of a new lesion(s).

Analysis population: Overall population in the global 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)355
Placebo + Fulvestrant (Global + China Cohort)353

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Capivasertib + Fulvestrant (Global + China Cohort)7.2Not reported5.57.4Not reported
Placebo + Fulvestrant (Global + China Cohort)3.6Not reported2.83.7Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.51
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.71
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.001
    param Type
    Hazard Ratio (HR)
    param Value
    0.60
    statistical Method
    Stratified log rank test
Complete source fields
analyses
  1. ci Lower Limit
    0.51
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.71
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.001
    param Type
    Hazard Ratio (HR)
    param Value
    0.60
    statistical Method
    Stratified log rank test
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        5.5
        upper Limit
        7.4
        value
        7.2
      2. group Id
        OG001
        lower Limit
        2.8
        upper Limit
        3.7
        value
        3.6
denoms
  1. counts
    1. group Id
      OG000
      value
      355
    2. group Id
      OG001
      value
      353
    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, in the global cohort. Participants who discontinue treatment prior to progression should continue to be scanned until progression. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) as at least a 20% increase in the sum of the longest diameter of target lesions (short axis diameter used for lymph nodes), or clinically significant increase in a non-target lesion, or the appearance of a new lesion(s).
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
Overall population in the global cohort
reporting Status
POSTED
time Frame
Assessed every 8 weeks for the first 18 months and every 12 weeks thereafter, from randomization to radiological progression.
title
Progression Free Survival: Overall Population (Months) in the Global Cohort
type
PRIMARY
unit Of Measure
Months

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Preserved source evidence · Not medical advice