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NCT04209855 · OUTCOME

Duration of Response (DOR) as Assessed by the Investigator Using RECIST v1.1

A Study of Mirvetuximab Soravtansine vs. Investigator's Choice (IC) of Chemotherapy in Platinum-Resistant, Advanced High-Grade Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancers With High Folate Receptor-Alpha (FRα) Expression · Source last updated 2025-08-27

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 approximately 34 months

What was measured

DOR was defined as the time from the date of the first response (CR or PR), until the date of PD or death from any cause, whichever occurred first. DOR for participants who have not progressed or died at the time of analysis are censored at the date of their last tumor assessment. PD: At least a 20% increase in the SoD of target lesion, taken as reference the smallest (nadir) SoD since and including baseline. In addition to the relative increase of 20%, the SoD must also have demonstrated an absolute increase of at least 5 mm. DOR was estimated using the Kaplan-Meier method.

Analysis population: The ITT population included all participants randomized to the study, regardless of whether or not participants received study treatment (MIRV or IC Chemo). Here, "Overall number of participants analyzed" is the number of evaluable participants for this outcome measure who had CR or PR.

Groups in this outcome

Mirvetuximab Soravtansine

Participants randomized to single-agent MIRV at 6 mg/kg AIBW administered IV on Day 1 of Q3W.

Investigator's Choice (IC) Chemotherapy

Participants randomized to IC chemotherapeutic agent calculated using BSA. Paclitaxel administered at 80 mg/m\^2 as a 1-hour IV infusion on Days 1, 8, 15, and 22 of a 4-week cycle; or topotecan administered at 4 mg/m\^2 over 30 minutes on Days 1, 8, and 15 of a 4-week cycle. Alternatively, topotecan could have been administered at 1.25 mg/m\^2 over 30 minutes on Days 1 to 5 of a 3-week cycle; or pegylated liposomal doxorubicin administered at 40 mg/m\^2 as a 1 mg/minute IV infusion on Day 1 of a 4-week cycle. After Cycle 1, if tolerated, pegylated liposomal doxorubicin could have been administered as a 1-hour infusion.

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

Analysis denominator · Participants

GroupSource count
Mirvetuximab Soravtansine95
Investigator's Choice (IC) Chemotherapy36

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Mirvetuximab Soravtansine6.93Not reported5.788.84Not reported
Investigator's Choice (IC) Chemotherapy4.44Not reported4.175.75Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        5.78
        upper Limit
        8.84
        value
        6.93
      2. group Id
        OG001
        lower Limit
        4.17
        upper Limit
        5.75
        value
        4.44
denoms
  1. counts
    1. group Id
      OG000
      value
      95
    2. group Id
      OG001
      value
      36
    units
    Participants
description
DOR was defined as the time from the date of the first response (CR or PR), until the date of PD or death from any cause, whichever occurred first. DOR for participants who have not progressed or died at the time of analysis are censored at the date of their last tumor assessment. PD: At least a 20% increase in the SoD of target lesion, taken as reference the smallest (nadir) SoD since and including baseline. In addition to the relative increase of 20%, the SoD must also have demonstrated an absolute increase of at least 5 mm. DOR was estimated using the Kaplan-Meier method.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants randomized to single-agent MIRV at 6 mg/kg AIBW administered IV on Day 1 of Q3W.
    id
    OG000
    title
    Mirvetuximab Soravtansine
  2. description
    Participants randomized to IC chemotherapeutic agent calculated using BSA. Paclitaxel administered at 80 mg/m\^2 as a 1-hour IV infusion on Days 1, 8, 15, and 22 of a 4-week cycle; or topotecan administered at 4 mg/m\^2 over 30 minutes on Days 1, 8, and 15 of a 4-week cycle. Alternatively, topotecan could have been administered at 1.25 mg/m\^2 over 30 minutes on Days 1 to 5 of a 3-week cycle; or pegylated liposomal doxorubicin administered at 40 mg/m\^2 as a 1 mg/minute IV infusion on Day 1 of a 4-week cycle. After Cycle 1, if tolerated, pegylated liposomal doxorubicin could have been administered as a 1-hour infusion.
    id
    OG001
    title
    Investigator's Choice (IC) Chemotherapy
param Type
MEDIAN
population Description
The ITT population included all participants randomized to the study, regardless of whether or not participants received study treatment (MIRV or IC Chemo). Here, "Overall number of participants analyzed" is the number of evaluable participants for this outcome measure who had CR or PR.
reporting Status
POSTED
time Frame
Up to approximately 34 months
title
Duration of Response (DOR) as Assessed by the Investigator Using RECIST v1.1
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice