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NCT05551117 · OUTCOME

Part 1: ORR Per PCWG3 Criteria 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
percentage of participants
Interval / dispersion
Not reported
Time frame
Every 8 weeks for the first 24 weeks, then every 12 weeks. Average duration of participation, 10 months,

What was measured

To qualify as an objective response, CR and PR require confirmation at least 4 weeks after initial observation of complete response (CR) or partial response (PR). CR + PR = ORR

Analysis population: The analysis is limited to only participants with mCRPC who experienced a complete or partial response to study treatment. None of the participants in the control arm experienced a complete or partial response to study treatment. Participants in Part 2 did not have mCRPC, so were not eligible for response using PCWG3 criteria.

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)59
Part 1: MGC018 2.7 mg (Arm B)49
Part 1: Control Arm3
Part 20

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Part 1: MGC018 2.0 mg (Arm A)13.6Not reportedNot reportedNot reportedNot reported
Part 1: MGC018 2.7 mg (Arm B)30.6Not reportedNot reportedNot reportedNot reported
Part 1: Control Arm0Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        13.6
      2. group Id
        OG001
        value
        30.6
      3. group Id
        OG002
        value
        0
denoms
  1. counts
    1. group Id
      OG000
      value
      59
    2. group Id
      OG001
      value
      49
    3. group Id
      OG002
      value
      3
    4. group Id
      OG003
      value
      0
    units
    Participants
description
To qualify as an objective response, CR and PR require confirmation at least 4 weeks after initial observation of complete response (CR) or partial response (PR). CR + PR = ORR
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
The analysis is limited to only participants with mCRPC who experienced a complete or partial response to study treatment. None of the participants in the control arm experienced a complete or partial response to study treatment. Participants in Part 2 did not have mCRPC, so were not eligible for response using PCWG3 criteria.
reporting Status
POSTED
time Frame
Every 8 weeks for the first 24 weeks, then every 12 weeks. Average duration of participation, 10 months,
title
Part 1: ORR Per PCWG3 Criteria as Determined by the Investigator
type
SECONDARY
unit Of Measure
percentage of participants

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

Preserved source evidence · Not medical advice