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NCT07217119 · OUTCOME

DE Phase: Overall Response Rate (ORR)

Sub-study of Belantamab Mafodotin (GSK2857916) in Combination With Feladilimab (GSK3359609) 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 281 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 mg/kg Belantamab Mafodotin + 8 mg Feladilimab

Participants with Relapsed/Refractory Multiple Myeloma (RRMM) received 1.9 milligram (mg)/kilogram (kg) of belantamab mafodotin intravenous (IV) infusion in combination with 8 mg feladilimab IV infusion, given 1 hour after belantamab mafodotin end of infusion (EOI), once every 3 weeks (Q3W).

2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab

Participants with RRMM received 2.5 mg/kg belantamab mafodotin IV infusion in combination with 8 mg feladilimab IV infusion, given 1 hour after belantamab mafodotin EOI Q3W.

2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab

Participants with RRMM received 2.5 mg/kg belantamab mafodotin IV infusion in combination with 24 mg feladilimab IV infusion, given 1 hour after belantamab mafodotin EOI Q3W.

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 mg/kg Belantamab Mafodotin + 8 mg Feladilimab9
2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab10
2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab6

Reported measurements

Source class 1
Values in Percentage of Participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab44Not reported13.778.8Not reported
2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab50Not reported18.781.3Not reported
2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab67Not reported22.395.7Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        13.7
        upper Limit
        78.8
        value
        44
      2. group Id
        OG001
        lower Limit
        18.7
        upper Limit
        81.3
        value
        50
      3. group Id
        OG002
        lower Limit
        22.3
        upper Limit
        95.7
        value
        67
denoms
  1. counts
    1. group Id
      OG000
      value
      9
    2. group Id
      OG001
      value
      10
    3. group Id
      OG002
      value
      6
    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 in combination with 8 mg feladilimab IV infusion, given 1 hour after belantamab mafodotin end of infusion (EOI), once every 3 weeks (Q3W).
    id
    OG000
    title
    1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab
  2. description
    Participants with RRMM received 2.5 mg/kg belantamab mafodotin IV infusion in combination with 8 mg feladilimab IV infusion, given 1 hour after belantamab mafodotin EOI Q3W.
    id
    OG001
    title
    2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab
  3. description
    Participants with RRMM received 2.5 mg/kg belantamab mafodotin IV infusion in combination with 24 mg feladilimab IV infusion, given 1 hour after belantamab mafodotin EOI Q3W.
    id
    OG002
    title
    2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab
param Type
NUMBER
population Description
Safety population
reporting Status
POSTED
time Frame
Up to approximately 281 weeks.
title
DE Phase: Overall Response Rate (ORR)
type
SECONDARY
unit Of Measure
Percentage of Participants

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Preserved source evidence · Not medical advice