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NCT05169567 · OUTCOME

Progression Free Survival (PFS) Determined by Blinded Independent Central Review (BICR)

Abemaciclib (LY2835219) Plus Fulvestrant Compared to Placebo Plus Fulvestrant in Previously Treated Breast Cancer · Source last updated 2026-01-16

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
Randomization to the date of first documented progression of disease or death from any cause (Up to 22 Months)

What was measured

PFS is defined as the time from the date of randomization to the earliest date of disease progression determined by blinded independent central review (BICR) or death from any cause, whichever occurs first.

Analysis population: All randomized participants.

Groups in this outcome

Arm A: Abemaciclib Plus Fulvestrant

Abemaciclib 150 mg administered orally BID on Days 1 to 28 of a 28-day cycle in combination with fulvestrant 500 mg administered IM on Days 1 and 15 of Cycle 1, then on Day 1 of Cycle 2 and beyond. Participants received treatment until discontinuation criteria were met.

Arm B: Placebo Plus Fulvestrant

Placebo administered orally BID on Days 1 to 28 of a 28-day cycle in combination with fulvestrant 500 mg administered IM on Days 1 and 15 of Cycle 1, then on Day 1 of Cycle 2 and beyond. Participants received treatment until discontinuation criteria were met.

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

Analysis denominator · Participants

GroupSource count
Arm A: Abemaciclib Plus Fulvestrant182
Arm B: Placebo Plus Fulvestrant186

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Arm A: Abemaciclib Plus Fulvestrant12.9Not reported9.5NAUpper limit of 95% CI was not estimable due to insufficient number of events.
Arm B: Placebo Plus Fulvestrant5.6Not reported3.97.7Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. comment
        Upper limit of 95% CI was not estimable due to insufficient number of events.
        group Id
        OG000
        lower Limit
        9.5
        upper Limit
        NA
        value
        12.9
      2. group Id
        OG001
        lower Limit
        3.9
        upper Limit
        7.7
        value
        5.6
denoms
  1. counts
    1. group Id
      OG000
      value
      182
    2. group Id
      OG001
      value
      186
    units
    Participants
description
PFS is defined as the time from the date of randomization to the earliest date of disease progression determined by blinded independent central review (BICR) or death from any cause, whichever occurs first.
dispersion Type
95% Confidence Interval
groups
  1. description
    Abemaciclib 150 mg administered orally BID on Days 1 to 28 of a 28-day cycle in combination with fulvestrant 500 mg administered IM on Days 1 and 15 of Cycle 1, then on Day 1 of Cycle 2 and beyond. Participants received treatment until discontinuation criteria were met.
    id
    OG000
    title
    Arm A: Abemaciclib Plus Fulvestrant
  2. description
    Placebo administered orally BID on Days 1 to 28 of a 28-day cycle in combination with fulvestrant 500 mg administered IM on Days 1 and 15 of Cycle 1, then on Day 1 of Cycle 2 and beyond. Participants received treatment until discontinuation criteria were met.
    id
    OG001
    title
    Arm B: Placebo Plus Fulvestrant
param Type
MEDIAN
population Description
All randomized participants.
reporting Status
POSTED
time Frame
Randomization to the date of first documented progression of disease or death from any cause (Up to 22 Months)
title
Progression Free Survival (PFS) Determined by Blinded Independent Central Review (BICR)
type
SECONDARY
unit Of Measure
Months

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

Preserved source evidence · Not medical advice