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NCT01945775 · OUTCOME

Overall Survival (OS)

A Study Evaluating Talazoparib (BMN 673), a PARP Inhibitor, in Advanced and/or Metastatic Breast Cancer Patients With BRCA Mutation (EMBRACA Study) · Source last updated 2022-01-20

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
Baseline until death due to any cause or analysis cut-off, up to a maximum duration of 61.4 months

What was measured

OS was defined as the time (in months) from randomization to death due to any cause. If death was not observed at the time of study cut-off date or permanently lost to follow-up, OS was censored at the date the participant was last known to be alive on or before the study cut-off date, whichever was earlier. The analysis was performed by Kaplan-Meier method.

Analysis population: ITT analysis population included all randomized participants.

Groups in this outcome

Talazoparib

Participants received talazoparib 1 mg, orally, once daily until radiographic disease progression as determined by the central IRF, unacceptable toxicity, consent withdrawal, physician's decision to terminate treatment, or sponsor's decision to terminate the trial (up to a maximum of 70.2 months). One cycle was of 21 days.

Physician's Choice Treatment

Participants received 1 of the following drugs in specified regimens, as per the physician's choice: 1) capecitabine 1250 mg/m\^2 orally twice daily on Day 1 to 14 in each cycle; 2) eribulin mesylate 1.4 mg/m\^2 (equivalent to eribulin 1.23 mg/ m\^2), as 2 to 5 minute IV infusion on Day 1 and 8 in each cycle; 3) gemcitabine 1250 mg/m\^2 as 30-minute IV infusion on Day 1 and 8 in each cycle; 4) vinorelbine 30 mg/m\^2 as 6 to 10 minute IV infusion on Day 1, 8, and 15 in each cycle; until radiographic disease progression as determined by the central IRF, unacceptable toxicity, consent withdrawal, physician's decision to terminate treatment, or Sponsor's decision to terminate the trial (up to a maximum of 45.3 months). One cycle was of 21 days.

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

Analysis denominator · Participants

GroupSource count
Talazoparib287
Physician's Choice Treatment144

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Talazoparib19.3Not reported16.622.5Not reported
Physician's Choice Treatment19.5Not reported17.422.4Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.670
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.073
    group Description
    Hazard ratio was based on stratified Cox regression model with treatment as the only covariate (stratification factors: number of prior cytotoxic chemotherapy regimens, triple negative status, history of central nervous system metastasis status).
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.1693
    param Type
    Hazard Ratio (HR)
    param Value
    0.848
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.670
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.073
    group Description
    Hazard ratio was based on stratified Cox regression model with treatment as the only covariate (stratification factors: number of prior cytotoxic chemotherapy regimens, triple negative status, history of central nervous system metastasis status).
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.1693
    param Type
    Hazard Ratio (HR)
    param Value
    0.848
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        16.6
        upper Limit
        22.5
        value
        19.3
      2. group Id
        OG001
        lower Limit
        17.4
        upper Limit
        22.4
        value
        19.5
denoms
  1. counts
    1. group Id
      OG000
      value
      287
    2. group Id
      OG001
      value
      144
    units
    Participants
description
OS was defined as the time (in months) from randomization to death due to any cause. If death was not observed at the time of study cut-off date or permanently lost to follow-up, OS was censored at the date the participant was last known to be alive on or before the study cut-off date, whichever was earlier. The analysis was performed by Kaplan-Meier method.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received talazoparib 1 mg, orally, once daily until radiographic disease progression as determined by the central IRF, unacceptable toxicity, consent withdrawal, physician's decision to terminate treatment, or sponsor's decision to terminate the trial (up to a maximum of 70.2 months). One cycle was of 21 days.
    id
    OG000
    title
    Talazoparib
  2. description
    Participants received 1 of the following drugs in specified regimens, as per the physician's choice: 1) capecitabine 1250 mg/m\^2 orally twice daily on Day 1 to 14 in each cycle; 2) eribulin mesylate 1.4 mg/m\^2 (equivalent to eribulin 1.23 mg/ m\^2), as 2 to 5 minute IV infusion on Day 1 and 8 in each cycle; 3) gemcitabine 1250 mg/m\^2 as 30-minute IV infusion on Day 1 and 8 in each cycle; 4) vinorelbine 30 mg/m\^2 as 6 to 10 minute IV infusion on Day 1, 8, and 15 in each cycle; until radiographic disease progression as determined by the central IRF, unacceptable toxicity, consent withdrawal, physician's decision to terminate treatment, or Sponsor's decision to terminate the trial (up to a maximum of 45.3 months). One cycle was of 21 days.
    id
    OG001
    title
    Physician's Choice Treatment
param Type
MEDIAN
population Description
ITT analysis population included all randomized participants.
reporting Status
POSTED
time Frame
Baseline until death due to any cause or analysis cut-off, up to a maximum duration of 61.4 months
title
Overall Survival (OS)
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice