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NCT05551117 · OUTCOME

Part 1: Six-month Radiographic Progression Free Survival (rPFS) as Determined by the Investigator

A Study of Vobramitamab Duocarmazine in Participants With Metastatic Castration Resistant Prostate Cancer and Other Solid Tumors · Source last updated 2026-02-09

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

Measure
NUMBER
Unit
proportion of participants
Interval / dispersion
95% Confidence Interval
Time frame
Assessed every 8 weeks for six months. Six month data reported.

What was measured

The landmark analysis for 6 month rPFS rate will occur when all participants on Part 1 have been on study for at least 6 months.

Analysis population: All participants according to the study treatment assigned (Intent to Treat Population) for participants with mCRPC in Part 1 only. This outcome measure applies to Part 1 only. Per protocol, participants in Part 2 did not have mCRPC and were not part of this analysis.

Groups in this outcome

Part 1: MGC018 2.0 mg (Arm A)

vobramitamab duocarmazine 2.0 mg/kg, IV, every 4 weeks

Part 1: MGC018 2.7 mg (Arm B)

vobramitamab duocarmazine 2.7 mg/kg, IV, every 4 weeks

Part 1: Control Arm

abiraterone 1000 mg once daily or enzalutamide 160 mg once daily.

Part 2

vobramitamab duocarmazine 2.7 mg.kg, IV, every 4 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
Part 1: MGC018 2.0 mg (Arm A)91
Part 1: MGC018 2.7 mg (Arm B)90
Part 1: Control Arm7
Part 20

Reported measurements

Source class 1
Values in proportion of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Part 1: MGC018 2.0 mg (Arm A)0.69Not reported0.570.78Not reported
Part 1: MGC018 2.7 mg (Arm B)0.70Not reported0.460.79Not reported
Part 1: Control Arm0.47Not reported0.021NAupper limit could not be estimated due to insufficient number of events.
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.57
        upper Limit
        0.78
        value
        0.69
      2. group Id
        OG001
        lower Limit
        0.46
        upper Limit
        0.79
        value
        0.70
      3. comment
        upper limit could not be estimated due to insufficient number of events.
        group Id
        OG002
        lower Limit
        0.021
        upper Limit
        NA
        value
        0.47
denoms
  1. counts
    1. group Id
      OG000
      value
      91
    2. group Id
      OG001
      value
      90
    3. group Id
      OG002
      value
      7
    4. group Id
      OG003
      value
      0
    units
    Participants
description
The landmark analysis for 6 month rPFS rate will occur when all participants on Part 1 have been on study for at least 6 months.
dispersion Type
95% Confidence Interval
groups
  1. description
    vobramitamab duocarmazine 2.0 mg/kg, IV, every 4 weeks
    id
    OG000
    title
    Part 1: MGC018 2.0 mg (Arm A)
  2. description
    vobramitamab duocarmazine 2.7 mg/kg, IV, every 4 weeks
    id
    OG001
    title
    Part 1: MGC018 2.7 mg (Arm B)
  3. description
    abiraterone 1000 mg once daily or enzalutamide 160 mg once daily.
    id
    OG002
    title
    Part 1: Control Arm
  4. description
    vobramitamab duocarmazine 2.7 mg.kg, IV, every 4 weeks
    id
    OG003
    title
    Part 2
param Type
NUMBER
population Description
All participants according to the study treatment assigned (Intent to Treat Population) for participants with mCRPC in Part 1 only. This outcome measure applies to Part 1 only. Per protocol, participants in Part 2 did not have mCRPC and were not part of this analysis.
reporting Status
POSTED
time Frame
Assessed every 8 weeks for six months. Six month data reported.
title
Part 1: Six-month Radiographic Progression Free Survival (rPFS) as Determined by the Investigator
type
PRIMARY
unit Of Measure
proportion of participants

Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f

Preserved source evidence · Not medical advice