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NCT07217184 · OUTCOME

DE Phase: Titer of ADAs Against Belantamab Mafodotin

Sub-study of Belantamab Mafodotin (GSK2857916) in Combination With Isatuximab in Participants With RRMM · Source last updated 2026-06-25

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

Measure
MEDIAN
Unit
Titers
Interval / dispersion
Full Range
Time frame
Up to approximately 194 weeks

What was measured

Serum samples were collected for the analysis of the presence of ADAs using validated immunoassays. All samples were tested in screening assay, and positive samples were further characterized for antibody titers.

Analysis population: Safety population. Only those participants with positive post-baseline antibody against belantamab mafodotin were analyzed.

Groups in this outcome

1.9 Milligram (mg)/Kilogram (kg) Belantamab Mafodotin (Q4W) + Isatuximab

Participants with Relapsed/Refractory Multiple Myeloma (RRMM) received 1.9 milligram (mg)/kilogram (kg) of belantamab mafodotin intravenous (IV) infusion once every 4 weeks (Q4W) infused over 30- 60 minutes on day 1 of each 28-day cycle in combination with 10 mg/kg isatuximab, given 1 hour after belantamab mafodotin end of infusion (EOI), administered as an IV infusion once weekly (Q1W) for 5 doses, then every 2 weeks (Q2W), and thereafter on day 1, 8, 15 and 22 of each 28-day cycle.

1.4 mg/kg Belantamab Mafodotin (Q8W) + Isatuximab

Participants with RRMM received 1.4 mg/kg of belantamab mafodotin IV infusion, once every 8 weeks (Q8W) infused over 30- 60 minutes on day 1 of each 56 day cycle in combination with 10 mg/kg isatuximab, given 1 hour after belantamab mafodotin EOI administered as an IV infusion once weekly (Q1W) for 5 doses, then every 2 weeks (Q2W) and thereafter on days 1, 8, 15, and 22 of each 28-day cycle.

1.9 mg/kg Belantamab Mafodotin (Q8W) + Isatuximab

Participants with RRMM received 1.9 mg/kg of belantamab mafodotin IV infusion, Q8W infused over 30- 60 minutes on day 1 of each 56 day cycle in combination with 10 mg/kg isatuximab, given 1 hour after belantamab mafodotin EOI administered as an IV infusion once weekly (Q1W) for 5 doses, then every 2 weeks (Q2W) and thereafter on days 1, 8, 15, and 22 of each 28-day cycle.

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

Analysis denominator · Participants

GroupSource count
1.9 Milligram (mg)/Kilogram (kg) Belantamab Mafodotin (Q4W) + Isatuximab0
1.4 mg/kg Belantamab Mafodotin (Q8W) + Isatuximab1
1.9 mg/kg Belantamab Mafodotin (Q8W) + Isatuximab0

Reported measurements

Source class 1
Values in Titers · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
1.4 mg/kg Belantamab Mafodotin (Q8W) + Isatuximab400.0Not reportedNANAFull range is not applicable as only a single participant was analyzed. Median value presented here is the actual titer value.
Complete source fields
classes
  1. categories
    1. measurements
      1. comment
        Full range is not applicable as only a single participant was analyzed. Median value presented here is the actual titer value.
        group Id
        OG001
        lower Limit
        NA
        upper Limit
        NA
        value
        400.0
denoms
  1. counts
    1. group Id
      OG000
      value
      0
    2. group Id
      OG001
      value
      1
    3. group Id
      OG002
      value
      0
    units
    Participants
description
Serum samples were collected for the analysis of the presence of ADAs using validated immunoassays. All samples were tested in screening assay, and positive samples were further characterized for antibody titers.
dispersion Type
Full Range
groups
  1. description
    Participants with Relapsed/Refractory Multiple Myeloma (RRMM) received 1.9 milligram (mg)/kilogram (kg) of belantamab mafodotin intravenous (IV) infusion once every 4 weeks (Q4W) infused over 30- 60 minutes on day 1 of each 28-day cycle in combination with 10 mg/kg isatuximab, given 1 hour after belantamab mafodotin end of infusion (EOI), administered as an IV infusion once weekly (Q1W) for 5 doses, then every 2 weeks (Q2W), and thereafter on day 1, 8, 15 and 22 of each 28-day cycle.
    id
    OG000
    title
    1.9 Milligram (mg)/Kilogram (kg) Belantamab Mafodotin (Q4W) + Isatuximab
  2. description
    Participants with RRMM received 1.4 mg/kg of belantamab mafodotin IV infusion, once every 8 weeks (Q8W) infused over 30- 60 minutes on day 1 of each 56 day cycle in combination with 10 mg/kg isatuximab, given 1 hour after belantamab mafodotin EOI administered as an IV infusion once weekly (Q1W) for 5 doses, then every 2 weeks (Q2W) and thereafter on days 1, 8, 15, and 22 of each 28-day cycle.
    id
    OG001
    title
    1.4 mg/kg Belantamab Mafodotin (Q8W) + Isatuximab
  3. description
    Participants with RRMM received 1.9 mg/kg of belantamab mafodotin IV infusion, Q8W infused over 30- 60 minutes on day 1 of each 56 day cycle in combination with 10 mg/kg isatuximab, given 1 hour after belantamab mafodotin EOI administered as an IV infusion once weekly (Q1W) for 5 doses, then every 2 weeks (Q2W) and thereafter on days 1, 8, 15, and 22 of each 28-day cycle.
    id
    OG002
    title
    1.9 mg/kg Belantamab Mafodotin (Q8W) + Isatuximab
param Type
MEDIAN
population Description
Safety population. Only those participants with positive post-baseline antibody against belantamab mafodotin were analyzed.
reporting Status
POSTED
time Frame
Up to approximately 194 weeks
title
DE Phase: Titer of ADAs Against Belantamab Mafodotin
type
SECONDARY
unit Of Measure
Titers

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

Preserved source evidence · Not medical advice