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NCT07217184 · OUTCOME

DE Phase: Overall Response Rate (ORR)

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
NUMBER
Unit
Percentage of Participants
Interval / dispersion
95% Confidence Interval
Time frame
Up to approximately 194 weeks

What was measured

Overall Response Rate (ORR) was defined as the percentage of participants with a confirmed Partial Response (PR) or better as the best overall response (i.e., PR, Very Good Partial Response \[VGPR\], Complete Response \[CR\], and stringent Complete Response \[sCR\]), as assessed by the investigator per international myeloma working group (IMWG) (2016). PR is defined as ≥50% reduction of serum M-protein and reduction in 24-hour urinary M-protein by ≥90% or to \<200 mg/24 h. VGPR is defined as serum and urine M-component detectable by immunofixation but not on electrophoresis OR ≥ 90% reduction in serum M-component plus urine M-component \<100 mg/24 h. CR is defined as negative immunofixation of serum and urine AND disappearance of any soft tissue plasmacytomas AND \<5% plasmacytomas in the bone marrow. sCR is defined as CR as above PLUS normal serum free light-chain (FLC) assay ratio and absence of clonal cells in bone marrow by immunohistochemistry or immunofluorescence.

Analysis population: Safety population

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) + Isatuximab10
1.4 mg/kg Belantamab Mafodotin (Q8W) + Isatuximab10
1.9 mg/kg Belantamab Mafodotin (Q8W) + Isatuximab10

Reported measurements

Source class 1
Values in Percentage of Participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
1.9 Milligram (mg)/Kilogram (kg) Belantamab Mafodotin (Q4W) + Isatuximab20Not reported2.555.6Not reported
1.4 mg/kg Belantamab Mafodotin (Q8W) + Isatuximab30Not reported6.765.2Not reported
1.9 mg/kg Belantamab Mafodotin (Q8W) + Isatuximab30Not reported6.765.2Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        2.5
        upper Limit
        55.6
        value
        20
      2. group Id
        OG001
        lower Limit
        6.7
        upper Limit
        65.2
        value
        30
      3. group Id
        OG002
        lower Limit
        6.7
        upper Limit
        65.2
        value
        30
denoms
  1. counts
    1. group Id
      OG000
      value
      10
    2. group Id
      OG001
      value
      10
    3. group Id
      OG002
      value
      10
    units
    Participants
description
Overall Response Rate (ORR) was defined as the percentage of participants with a confirmed Partial Response (PR) or better as the best overall response (i.e., PR, Very Good Partial Response \[VGPR\], Complete Response \[CR\], and stringent Complete Response \[sCR\]), as assessed by the investigator per international myeloma working group (IMWG) (2016). PR is defined as ≥50% reduction of serum M-protein and reduction in 24-hour urinary M-protein by ≥90% or to \<200 mg/24 h. VGPR is defined as serum and urine M-component detectable by immunofixation but not on electrophoresis OR ≥ 90% reduction in serum M-component plus urine M-component \<100 mg/24 h. CR is defined as negative immunofixation of serum and urine AND disappearance of any soft tissue plasmacytomas AND \<5% plasmacytomas in the bone marrow. sCR is defined as CR as above PLUS normal serum free light-chain (FLC) assay ratio and absence of clonal cells in bone marrow by immunohistochemistry or immunofluorescence.
dispersion Type
95% Confidence Interval
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
NUMBER
population Description
Safety population
reporting Status
POSTED
time Frame
Up to approximately 194 weeks
title
DE Phase: Overall Response Rate (ORR)
type
SECONDARY
unit Of Measure
Percentage of Participants

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

Preserved source evidence · Not medical advice