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NCT05551117 · OUTCOME

Part 1: Duration of PSA Response Per PCWG3 Criteria

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
MEDIAN
Unit
months
Interval / dispersion
95% Confidence Interval
Time frame
Every 4 weeks throughout study participation. Average duration of participation, 10 months.

What was measured

Duration of PSA response is defined as the time from the date of first documented PSA response to the earliest date of PSA progression.

Analysis population: All participants in Part 1 who met criteria for a PSA response to study treatment. There were no participants in the Control Arm that were part of the PSA Response Evaluable Population. Participants in Part 2 did not have mCRPC, so were not assessed using PSA measurement.

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)38
Part 1: MGC018 2.7 mg (Arm B)27
Part 1: Control Arm0
Part 20

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Part 1: MGC018 2.0 mg (Arm A)6.1Not reported4.63NAThe upper bound of the CI could not be estimated due to insufficient number of participants with event
Part 1: MGC018 2.7 mg (Arm B)NANot reported5.13NAThe median and upper bound of the CI could not be estimated due to insufficient number of participants with events
Complete source fields
classes
  1. categories
    1. measurements
      1. comment
        The upper bound of the CI could not be estimated due to insufficient number of participants with event
        group Id
        OG000
        lower Limit
        4.63
        upper Limit
        NA
        value
        6.1
      2. comment
        The median and upper bound of the CI could not be estimated due to insufficient number of participants with events
        group Id
        OG001
        lower Limit
        5.13
        upper Limit
        NA
        value
        NA
denoms
  1. counts
    1. group Id
      OG000
      value
      38
    2. group Id
      OG001
      value
      27
    3. group Id
      OG002
      value
      0
    4. group Id
      OG003
      value
      0
    units
    Participants
description
Duration of PSA response is defined as the time from the date of first documented PSA response to the earliest date of PSA progression.
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
MEDIAN
population Description
All participants in Part 1 who met criteria for a PSA response to study treatment. There were no participants in the Control Arm that were part of the PSA Response Evaluable Population. Participants in Part 2 did not have mCRPC, so were not assessed using PSA measurement.
reporting Status
POSTED
time Frame
Every 4 weeks throughout study participation. Average duration of participation, 10 months.
title
Part 1: Duration of PSA Response Per PCWG3 Criteria
type
SECONDARY
unit Of Measure
months

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

Preserved source evidence · Not medical advice