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NCT02574455 · OUTCOME

Time to Objective Response by the IRC Assessment in BM-ve Population

Trial of Sacituzumab Govitecan in Participants With Refractory/Relapsed Metastatic Triple-Negative Breast Cancer (TNBC) · Source last updated 2022-06-15

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

Measure
MEAN
Unit
months
Interval / dispersion
Standard Deviation
Time frame
From randomization to the first recorded objective response (assessed every 6 weeks for 9 months and then every 9 weeks thereafter until the occurrence of progression of disease; maximum exposure: 29.6 months)

What was measured

Time to response was defined as the time from randomization to the first recorded objective response (ie, CR or PR). CR: Disappearance of all target and non-target lesions; and normalization of tumor marker levels initially above upper limits of normal; and no new lesions. PR: ≥30% decrease in the sum of the LD of target lesions, taking as reference the baseline sum LD; and no new lesions.

Analysis population: Participants in the BM-ve Population with objective response were analyzed.

Groups in this outcome

Sacituzumab Govitecan

Participants received sacituzumab govitecan 10 mg/kg of body weight, administered as a slow IV infusion either by gravity or with an infusion pump on Days 1 and 8 of a 21-day treatment cycle for up to 29.6 months. Infusion rate for the first 15 minutes started with 50 mg/hour or less with a subsequent infusion of 100 to 200 mg/hour up to a maximum recommended rate (advanced every 15 to 30 minutes) of 500 mg/hour with a subsequent infusion of 1000 mg/hour. Participants continued treatment until progression of disease requiring treatment discontinuation or occurrence of unacceptable AEs.

Treatment of Physician's Choice (TPC)

Participants received TPC (ie, eribulin, capecitabine, gemcitabine, or vinorelbine), administered as a single-agent regimen that was selected by the investigator before participant randomization. Participants continued treatment until progression of disease requiring treatment discontinuation or occurrence of unacceptable AEs. Eribulin was administered IV over 2 to 5 minutes at a dose 1.4 mg/m\^2 at North American sites and 1.23 mg/m\^2 at European sites on Days 1 and 8 of a 21-day cycle for up to 15.3 months. Lower doses were administered on the same schedule to participants with moderate hepatic impairment (ie, Child-Pugh B; 0.7 mg/m\^2 and 0.67 mg/m\^2 for North American and European sites, respectively). 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 for up to 10.6 months. Gemcitabine 800 to 1200 mg/m\^2 was administered IV over 30 minutes on Days 1, 8, and 15 of a 28-day cycle for up to 8.1 months. Vinorelbine 25 mg/m\^2 was administered as a weekly IV injection over 6-10 minutes for up to 11.5 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 Govitecan82
Treatment of Physician's Choice (TPC)11

Reported measurements

Source class 1
Values in months · Interval/dispersion: Standard Deviation
GroupValueSpreadLowerUpperComment
Sacituzumab Govitecan2.671.913Not reportedNot reportedNot reported
Treatment of Physician's Choice (TPC)1.860.919Not reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        spread
        1.913
        value
        2.67
      2. group Id
        OG001
        spread
        0.919
        value
        1.86
denoms
  1. counts
    1. group Id
      OG000
      value
      82
    2. group Id
      OG001
      value
      11
    units
    Participants
description
Time to response was defined as the time from randomization to the first recorded objective response (ie, CR or PR). CR: Disappearance of all target and non-target lesions; and normalization of tumor marker levels initially above upper limits of normal; and no new lesions. PR: ≥30% decrease in the sum of the LD of target lesions, taking as reference the baseline sum LD; and no new lesions.
dispersion Type
Standard Deviation
groups
  1. description
    Participants received sacituzumab govitecan 10 mg/kg of body weight, administered as a slow IV infusion either by gravity or with an infusion pump on Days 1 and 8 of a 21-day treatment cycle for up to 29.6 months. Infusion rate for the first 15 minutes started with 50 mg/hour or less with a subsequent infusion of 100 to 200 mg/hour up to a maximum recommended rate (advanced every 15 to 30 minutes) of 500 mg/hour with a subsequent infusion of 1000 mg/hour. Participants continued treatment until progression of disease requiring treatment discontinuation or occurrence of unacceptable AEs.
    id
    OG000
    title
    Sacituzumab Govitecan
  2. description
    Participants received TPC (ie, eribulin, capecitabine, gemcitabine, or vinorelbine), administered as a single-agent regimen that was selected by the investigator before participant randomization. Participants continued treatment until progression of disease requiring treatment discontinuation or occurrence of unacceptable AEs. Eribulin was administered IV over 2 to 5 minutes at a dose 1.4 mg/m\^2 at North American sites and 1.23 mg/m\^2 at European sites on Days 1 and 8 of a 21-day cycle for up to 15.3 months. Lower doses were administered on the same schedule to participants with moderate hepatic impairment (ie, Child-Pugh B; 0.7 mg/m\^2 and 0.67 mg/m\^2 for North American and European sites, respectively). 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 for up to 10.6 months. Gemcitabine 800 to 1200 mg/m\^2 was administered IV over 30 minutes on Days 1, 8, and 15 of a 28-day cycle for up to 8.1 months. Vinorelbine 25 mg/m\^2 was administered as a weekly IV injection over 6-10 minutes for up to 11.5 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
MEAN
population Description
Participants in the BM-ve Population with objective response were analyzed.
reporting Status
POSTED
time Frame
From randomization to the first recorded objective response (assessed every 6 weeks for 9 months and then every 9 weeks thereafter until the occurrence of progression of disease; maximum exposure: 29.6 months)
title
Time to Objective Response by the IRC Assessment in BM-ve Population
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice