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NCT03901339 · OUTCOME

TTD of Fatigue Score as Measured by EORTC QLQ-C30

Study of Sacituzumab Govitecan-hziy Versus Treatment of Physician's Choice in Participants With HR+/HER2- Metastatic Breast Cancer · Source last updated 2024-10-21

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
Up to 37.8 months

What was measured

TTD was defined as the time from randomization to the first date a subject achieves 10-point deterioration from baseline in the fatigue score.The EORTC QLQ-C30 is a questionnaire to assess quality of life, it is composed of 30 questions(items) resulting in 5 functional scales(physical, role, emotional, cognitive, social),1 global health status scale,3 symptom scales (fatigue, nausea and vomiting, pain),and 6 single items(dyspnea, insomnia, loss of appetite, constipation, diarrhea, financial difficulties).All of the scales and single-item measures range in score from 0 to 100.Participant responses to 3 questions about fatigue 'Did you need to rest', 'Have you felt weak' and 'Were you tired' were scored on a 4-point scale (1=not at all;4=very much).Summed raw scores were standardized by linear transformation so that scores ranged from 0 to 100. Higher scores on the symptom scales indicate a higher level of symptoms (i.e. a worse state of the participant).

Analysis population: Participants in the HRQOL-Evaluable Population with baseline fatigue score ≤ 90 were analyzed.

Groups in this outcome

Sacituzumab Govitecan

Participants received sacituzumab govitecan 10 mg/kg of body weight, administered as a slow IV infusion on Days 1 and 8 of a 21-day treatment cycle until progression of disease, occurrence of unacceptable AEs, or another treatment discontinuation criterion was met (up to 40.1 months).

Treatment of Physician's Choice (TPC)

Participants received TPC (ie, eribulin, capecitabine, gemcitabine, or vinorelbine), administered as a single-agent treatment that was determined by the investigator before participant randomization until progression of disease, occurrence of unacceptable AEs, or another treatment discontinuation criterion was met. Dosing per NCCN guidelines (with dose modifications for if toxic) * Eribulin was administered IV at a dose 1.4 mg/m\^2 at North American sites and 1.2 mg/m\^2 at European sites on Days 1 and 8 of a 21-day cycle (up to 22.5 months). * Capecitabine 1000 to 1250 mg/m\^2 was administered in a 21-day cycle, with capecitabine administered orally twice daily for 2 weeks followed by 1-week rest period (up to 12.9 months). * Gemcitabine 800 to 1200 mg/m\^2 was administered IV on Days 1, 8, and 15 of a 28-day cycle (up to 22.3 months). * Vinorelbine 25 mg/m\^2 was administered as a weekly IV injection (up to 8.1 months). Vinorelbine was not allowed as TPC for any participant with Grade 2 neuropathy.

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

Analysis denominator · Participants

GroupSource count
Sacituzumab Govitecan234
Treatment of Physician's Choice (TPC)205

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Sacituzumab Govitecan2.2Not reported1.62.8Not reported
Treatment of Physician's Choice (TPC)1.4Not reported1.11.9Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.598
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.894
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    OTHER
    p Value
    0.0021
    p Value Comment
    Stratified log-rank test and stratified Cox regression adjusted for stratification factors: prior chemotherapy regimens for metastatic disease, presence of visceral metastasis, and endocrine therapy in the metastatic setting for at least 6 months.
    param Type
    Hazard Ratio (HR)
    param Value
    0.732
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.598
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.894
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    OTHER
    p Value
    0.0021
    p Value Comment
    Stratified log-rank test and stratified Cox regression adjusted for stratification factors: prior chemotherapy regimens for metastatic disease, presence of visceral metastasis, and endocrine therapy in the metastatic setting for at least 6 months.
    param Type
    Hazard Ratio (HR)
    param Value
    0.732
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        1.6
        upper Limit
        2.8
        value
        2.2
      2. group Id
        OG001
        lower Limit
        1.1
        upper Limit
        1.9
        value
        1.4
denoms
  1. counts
    1. group Id
      OG000
      value
      234
    2. group Id
      OG001
      value
      205
    units
    Participants
description
TTD was defined as the time from randomization to the first date a subject achieves 10-point deterioration from baseline in the fatigue score.The EORTC QLQ-C30 is a questionnaire to assess quality of life, it is composed of 30 questions(items) resulting in 5 functional scales(physical, role, emotional, cognitive, social),1 global health status scale,3 symptom scales (fatigue, nausea and vomiting, pain),and 6 single items(dyspnea, insomnia, loss of appetite, constipation, diarrhea, financial difficulties).All of the scales and single-item measures range in score from 0 to 100.Participant responses to 3 questions about fatigue 'Did you need to rest', 'Have you felt weak' and 'Were you tired' were scored on a 4-point scale (1=not at all;4=very much).Summed raw scores were standardized by linear transformation so that scores ranged from 0 to 100. Higher scores on the symptom scales indicate a higher level of symptoms (i.e. a worse state of the participant).
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received sacituzumab govitecan 10 mg/kg of body weight, administered as a slow IV infusion on Days 1 and 8 of a 21-day treatment cycle until progression of disease, occurrence of unacceptable AEs, or another treatment discontinuation criterion was met (up to 40.1 months).
    id
    OG000
    title
    Sacituzumab Govitecan
  2. description
    Participants received TPC (ie, eribulin, capecitabine, gemcitabine, or vinorelbine), administered as a single-agent treatment that was determined by the investigator before participant randomization until progression of disease, occurrence of unacceptable AEs, or another treatment discontinuation criterion was met. Dosing per NCCN guidelines (with dose modifications for if toxic) * Eribulin was administered IV at a dose 1.4 mg/m\^2 at North American sites and 1.2 mg/m\^2 at European sites on Days 1 and 8 of a 21-day cycle (up to 22.5 months). * Capecitabine 1000 to 1250 mg/m\^2 was administered in a 21-day cycle, with capecitabine administered orally twice daily for 2 weeks followed by 1-week rest period (up to 12.9 months). * Gemcitabine 800 to 1200 mg/m\^2 was administered IV on Days 1, 8, and 15 of a 28-day cycle (up to 22.3 months). * Vinorelbine 25 mg/m\^2 was administered as a weekly IV injection (up to 8.1 months). Vinorelbine was not allowed as TPC for any participant with Grade 2 neuropathy.
    id
    OG001
    title
    Treatment of Physician's Choice (TPC)
param Type
MEDIAN
population Description
Participants in the HRQOL-Evaluable Population with baseline fatigue score ≤ 90 were analyzed.
reporting Status
POSTED
time Frame
Up to 37.8 months
title
TTD of Fatigue Score as Measured by EORTC QLQ-C30
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice