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NCT03828292 · OUTCOME

Part 1: Number of Participants With Worst-Case Amount of Increase From Baseline Value in Corrected QT Interval Using Fredericia's Formula (QTcF)

An Open-label, Dose Escalation Study in Japanese Participants With Relapsed/Refractory Multiple Myeloma Who Have Failed Prior Anti Myeloma Treatments · Source last updated 2025-08-19

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

Measure
COUNT_OF_PARTICIPANTS
Unit
Participants
Interval / dispersion
Not reported
Time frame
Baseline (Day 1) and up to approximately 141 weeks

What was measured

12-lead electrocardiogram (ECG) was obtained using an automated ECG machine that automatically calculated the heart rate and measured PR, QRS, QT, and QT interval corrected using Fridericia's formula (QTcF) intervals. Grade 0 (\<450 millisecond (msec)), Grade 1 (450-480 msec), Grade 2 (481-500 msec), and Grade 3 (≥501 msec). Higher grade indicates greater severity. Data for participants with worst-case post baseline with any grade increase and a post-baseline grade increase to G2 and G3 from their baseline grade are presented. Baseline was defined as the latest pre-dose assessment within 21 days prior to first dose with a non-missing value, including those from unscheduled visits.

Analysis population: All treated population.

Groups in this outcome

Main Study - Part 1: Belantamab Mafodotin 2.5 Milligram/ Kilogram (mg/kg)

Participants with Relapsed or Refractory Multiple Myeloma (RRMM) received belantamab mafodotin as 2.5 milligram (mg)/kilogram (kg) dose via intravenous (IV) infusion on Day 1 of every 21-day cycle (Q3W) maximum up to disease progression.

Main Study - Part 1: Belantamab Mafodotin 3.4 mg/kg

Participants with RRMM received belantamab mafodotin as dose of 3.4 mg/kg via IV infusion on Day 1 of every 21-day cycle (Q3W) maximum up to disease progression.

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

Analysis denominator · Participants

GroupSource count
Main Study - Part 1: Belantamab Mafodotin 2.5 Milligram/ Kilogram (mg/kg)4
Main Study - Part 1: Belantamab Mafodotin 3.4 mg/kg3

Reported measurements

Any Grade Increase
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Main Study - Part 1: Belantamab Mafodotin 2.5 Milligram/ Kilogram (mg/kg)1Not reportedNot reportedNot reportedNot reported
Main Study - Part 1: Belantamab Mafodotin 3.4 mg/kg0Not reportedNot reportedNot reportedNot reported
Increase to Grade 2 (481 - 500 msec))
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Main Study - Part 1: Belantamab Mafodotin 2.5 Milligram/ Kilogram (mg/kg)1Not reportedNot reportedNot reportedNot reported
Main Study - Part 1: Belantamab Mafodotin 3.4 mg/kg0Not reportedNot reportedNot reportedNot reported
Increase to Grade 3 (>= 501 msec))
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Main Study - Part 1: Belantamab Mafodotin 2.5 Milligram/ Kilogram (mg/kg)0Not reportedNot reportedNot reportedNot reported
Main Study - Part 1: Belantamab Mafodotin 3.4 mg/kg0Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        1
      2. group Id
        OG001
        value
        0
    title
    Any Grade Increase
  2. categories
    1. measurements
      1. group Id
        OG000
        value
        1
      2. group Id
        OG001
        value
        0
    title
    Increase to Grade 2 (481 - 500 msec))
  3. categories
    1. measurements
      1. group Id
        OG000
        value
        0
      2. group Id
        OG001
        value
        0
    title
    Increase to Grade 3 (>= 501 msec))
denoms
  1. counts
    1. group Id
      OG000
      value
      4
    2. group Id
      OG001
      value
      3
    units
    Participants
description
12-lead electrocardiogram (ECG) was obtained using an automated ECG machine that automatically calculated the heart rate and measured PR, QRS, QT, and QT interval corrected using Fridericia's formula (QTcF) intervals. Grade 0 (\<450 millisecond (msec)), Grade 1 (450-480 msec), Grade 2 (481-500 msec), and Grade 3 (≥501 msec). Higher grade indicates greater severity. Data for participants with worst-case post baseline with any grade increase and a post-baseline grade increase to G2 and G3 from their baseline grade are presented. Baseline was defined as the latest pre-dose assessment within 21 days prior to first dose with a non-missing value, including those from unscheduled visits.
groups
  1. description
    Participants with Relapsed or Refractory Multiple Myeloma (RRMM) received belantamab mafodotin as 2.5 milligram (mg)/kilogram (kg) dose via intravenous (IV) infusion on Day 1 of every 21-day cycle (Q3W) maximum up to disease progression.
    id
    OG000
    title
    Main Study - Part 1: Belantamab Mafodotin 2.5 Milligram/ Kilogram (mg/kg)
  2. description
    Participants with RRMM received belantamab mafodotin as dose of 3.4 mg/kg via IV infusion on Day 1 of every 21-day cycle (Q3W) maximum up to disease progression.
    id
    OG001
    title
    Main Study - Part 1: Belantamab Mafodotin 3.4 mg/kg
param Type
COUNT_OF_PARTICIPANTS
population Description
All treated population.
reporting Status
POSTED
time Frame
Baseline (Day 1) and up to approximately 141 weeks
title
Part 1: Number of Participants With Worst-Case Amount of Increase From Baseline Value in Corrected QT Interval Using Fredericia's Formula (QTcF)
type
PRIMARY
unit Of Measure
Participants

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

Preserved source evidence · Not medical advice