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NCT02631876 · OUTCOME

Objective Response Rate (ORR): Percentage of Participants With Objective Response, as Assessed by BIRC Per RECIST1.1

A Study of Mirvetuximab Soravtansine vs. Investigator's Choice of Chemotherapy in Women With Folate Receptor (FR) Alpha Positive Advanced Epithelial Ovarian Cancer (EOC), Primary Peritoneal or Fallopian Tube Cancer · Source last updated 2020-10-14

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

Measure
NUMBER
Unit
percentage of participants
Interval / dispersion
95% Confidence Interval
Time frame
From randomization until first BOR of CR or PR (maximum exposure: 86.9 weeks for mirvetuximab soravtansine arm and 62.9 weeks for IC chemotherapy arm)

What was measured

ORR was defined as percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR). CR: Disappearance of all target or non-target lesions. All pathological or non-pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than (\<) 10 millimeters (mm). PR: At least 30 percent (%) decrease in the SoD of target lesions, taking as reference the baseline SoD.

Analysis population: ITT population included all participants randomized in the study.

Groups in this outcome

Mirvetuximab Soravtansine

Participants received mirvetuximab soravtansine at 6 mg/kg AIBW administered IV on Day 1 of a 3 week cycle. Participants continued to receive study drug until they experienced PD per RECIST version 1.1 (as assessed by BIRC), experienced unacceptable toxicity, or withdrew consent, whichever came first, or until the sponsor terminated the study. (Maximum exposure: 86.9 weeks)

Investigator's Choice (IC) Chemotherapy

Participants received a dose of 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. Participants continued to receive study drug until they experienced PD per RECIST version 1.1 (as assessed by BIRC), experienced unacceptable toxicity, or withdrew consent, whichever came first, or until the sponsor terminated the study. (Maximum exposure: 62.9 weeks)

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 Soravtansine248
Investigator's Choice (IC) Chemotherapy118

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Mirvetuximab Soravtansine22Not reported17.227.9Not reported
Investigator's Choice (IC) Chemotherapy12Not reported6.619.1Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        17.2
        upper Limit
        27.9
        value
        22
      2. group Id
        OG001
        lower Limit
        6.6
        upper Limit
        19.1
        value
        12
denoms
  1. counts
    1. group Id
      OG000
      value
      248
    2. group Id
      OG001
      value
      118
    units
    Participants
description
ORR was defined as percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR). CR: Disappearance of all target or non-target lesions. All pathological or non-pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than (\<) 10 millimeters (mm). PR: At least 30 percent (%) decrease in the SoD of target lesions, taking as reference the baseline SoD.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received mirvetuximab soravtansine at 6 mg/kg AIBW administered IV on Day 1 of a 3 week cycle. Participants continued to receive study drug until they experienced PD per RECIST version 1.1 (as assessed by BIRC), experienced unacceptable toxicity, or withdrew consent, whichever came first, or until the sponsor terminated the study. (Maximum exposure: 86.9 weeks)
    id
    OG000
    title
    Mirvetuximab Soravtansine
  2. description
    Participants received a dose of 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. Participants continued to receive study drug until they experienced PD per RECIST version 1.1 (as assessed by BIRC), experienced unacceptable toxicity, or withdrew consent, whichever came first, or until the sponsor terminated the study. (Maximum exposure: 62.9 weeks)
    id
    OG001
    title
    Investigator's Choice (IC) Chemotherapy
param Type
NUMBER
population Description
ITT population included all participants randomized in the study.
reporting Status
POSTED
time Frame
From randomization until first BOR of CR or PR (maximum exposure: 86.9 weeks for mirvetuximab soravtansine arm and 62.9 weeks for IC chemotherapy arm)
title
Objective Response Rate (ORR): Percentage of Participants With Objective Response, as Assessed by BIRC Per RECIST1.1
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice