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NCT07084896 · OUTCOME

DE Phase: Overall Response Rate (ORR)

Sub-study of Belantamab Mafodotin (GSK2857916) in Combination With Nirogacestat in Participants With RRMM · Source last updated 2026-05-06

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 253 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

DE Phase: 0.95 mg/kg Belantamab Mafodotin + Nirogacestat

In DE Phase, participants with Relapsed/Refractory Multiple Myeloma (RRMM) received 0.95 milligram (mg)/kilogram (kg) belantamab mafodotin intravenous (IV) infusion as powder for solution once every 3 weeks (Q3W) infused over 30- 60 minutes on day 1 of 21-day cycles in combination with 100 mg nirogacestat administered twice a day (BID) on day 1, 4, 8 and 15 of 21-day cycles. Treatment was administered until disease progression, intolerable toxicity, informed consent withdrawal, the end of the sub-study or death.

DE Phase: 1.9 mg/kg Belantamab Mafodotin+ Nirogacestat

In DE Phase, participants with RRMM received 1.9 mg/ kg belantamab mafodotin IV infusion as powder for solution once Q3W infused over 30- 60 minutes on day 1 of 21-day cycles in combination with 100 mg nirogacestat administered BID on day 1, 4, 8 and 15 of 21-day cycles. Treatment was administered until disease progression, intolerable toxicity, informed consent withdrawal, the end of the sub-study or death.

DE Phase: 1.0 mg/kg Belantamab Mafodotin Q4W/Q8W + Nirogacestat BID

In DE Phase, participants with RRMM received 1.0 mg/ kg belantamab mafodotin IV infusion as powder for solution once every 4 weeks (Q4W) for Cycle 1-2 and then once every 8 weeks (Q8W) from Cycle 2 onwards, infused over 30- 60 minutes on day 1 of 28-day cycles in Q4W and 56-day cycle in Q8W in combination with 100 mg nirogacestat BID on day 1, 4, 8 and 15 of 21-day cycles. Treatment was administered until disease progression, intolerable toxicity, informed consent withdrawal, the end of the sub-study or death.

DE Phase: 1.4 mg/kg Belantamab Mafodotin Q4W/Q8W + Nirogacestat BID

In DE Phase, participants with RRMM received 1.4 mg/ kg belantamab mafodotin IV infusion as powder for solution Q4W for Cycle 1 and then Q8W from Cycle2 onwards, infused over 30- 60 minutes on day 1 of 21-day cycles in combination with 100 mg nirogacestat BID on day 1, 4, 8 and 15 of 21-day cycles. Treatment was administered until disease progression, intolerable toxicity, informed consent withdrawal, the end of the sub-study or death.

DE Phase: 1.4 mg/kg Belantamab Mafodotin Q4W + Nirogacestat BID

In DE Phase, participants with RRMM received 1.4 mg/ kg belantamab mafodotin IV infusion as powder for solution Q4W, infused over 30- 60 minutes on day 1 of 28-day cycles in combination with 100 mg nirogacestat BID on day 1, 4, 8 and 15 of 21-day cycles. Treatment was administered until disease progression, intolerable toxicity, informed consent withdrawal, the end of the sub-study or death.

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

Analysis denominator · Participants

GroupSource count
DE Phase: 0.95 mg/kg Belantamab Mafodotin + Nirogacestat10
DE Phase: 1.9 mg/kg Belantamab Mafodotin+ Nirogacestat4
DE Phase: 1.0 mg/kg Belantamab Mafodotin Q4W/Q8W + Nirogacestat BID10
DE Phase: 1.4 mg/kg Belantamab Mafodotin Q4W/Q8W + Nirogacestat BID10
DE Phase: 1.4 mg/kg Belantamab Mafodotin Q4W + Nirogacestat BID1

Reported measurements

Source class 1
Values in Percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
DE Phase: 0.95 mg/kg Belantamab Mafodotin + Nirogacestat60Not reported26.287.8Not reported
DE Phase: 1.9 mg/kg Belantamab Mafodotin+ Nirogacestat0Not reported0.060.2Not reported
DE Phase: 1.0 mg/kg Belantamab Mafodotin Q4W/Q8W + Nirogacestat BID40Not reported12.273.8Not reported
DE Phase: 1.4 mg/kg Belantamab Mafodotin Q4W/Q8W + Nirogacestat BID50Not reported18.781.3Not reported
DE Phase: 1.4 mg/kg Belantamab Mafodotin Q4W + Nirogacestat BID0Not reported0.097.5Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        26.2
        upper Limit
        87.8
        value
        60
      2. group Id
        OG001
        lower Limit
        0.0
        upper Limit
        60.2
        value
        0
      3. group Id
        OG002
        lower Limit
        12.2
        upper Limit
        73.8
        value
        40
      4. group Id
        OG003
        lower Limit
        18.7
        upper Limit
        81.3
        value
        50
      5. group Id
        OG004
        lower Limit
        0.0
        upper Limit
        97.5
        value
        0
denoms
  1. counts
    1. group Id
      OG000
      value
      10
    2. group Id
      OG001
      value
      4
    3. group Id
      OG002
      value
      10
    4. group Id
      OG003
      value
      10
    5. group Id
      OG004
      value
      1
    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
    In DE Phase, participants with Relapsed/Refractory Multiple Myeloma (RRMM) received 0.95 milligram (mg)/kilogram (kg) belantamab mafodotin intravenous (IV) infusion as powder for solution once every 3 weeks (Q3W) infused over 30- 60 minutes on day 1 of 21-day cycles in combination with 100 mg nirogacestat administered twice a day (BID) on day 1, 4, 8 and 15 of 21-day cycles. Treatment was administered until disease progression, intolerable toxicity, informed consent withdrawal, the end of the sub-study or death.
    id
    OG000
    title
    DE Phase: 0.95 mg/kg Belantamab Mafodotin + Nirogacestat
  2. description
    In DE Phase, participants with RRMM received 1.9 mg/ kg belantamab mafodotin IV infusion as powder for solution once Q3W infused over 30- 60 minutes on day 1 of 21-day cycles in combination with 100 mg nirogacestat administered BID on day 1, 4, 8 and 15 of 21-day cycles. Treatment was administered until disease progression, intolerable toxicity, informed consent withdrawal, the end of the sub-study or death.
    id
    OG001
    title
    DE Phase: 1.9 mg/kg Belantamab Mafodotin+ Nirogacestat
  3. description
    In DE Phase, participants with RRMM received 1.0 mg/ kg belantamab mafodotin IV infusion as powder for solution once every 4 weeks (Q4W) for Cycle 1-2 and then once every 8 weeks (Q8W) from Cycle 2 onwards, infused over 30- 60 minutes on day 1 of 28-day cycles in Q4W and 56-day cycle in Q8W in combination with 100 mg nirogacestat BID on day 1, 4, 8 and 15 of 21-day cycles. Treatment was administered until disease progression, intolerable toxicity, informed consent withdrawal, the end of the sub-study or death.
    id
    OG002
    title
    DE Phase: 1.0 mg/kg Belantamab Mafodotin Q4W/Q8W + Nirogacestat BID
  4. description
    In DE Phase, participants with RRMM received 1.4 mg/ kg belantamab mafodotin IV infusion as powder for solution Q4W for Cycle 1 and then Q8W from Cycle2 onwards, infused over 30- 60 minutes on day 1 of 21-day cycles in combination with 100 mg nirogacestat BID on day 1, 4, 8 and 15 of 21-day cycles. Treatment was administered until disease progression, intolerable toxicity, informed consent withdrawal, the end of the sub-study or death.
    id
    OG003
    title
    DE Phase: 1.4 mg/kg Belantamab Mafodotin Q4W/Q8W + Nirogacestat BID
  5. description
    In DE Phase, participants with RRMM received 1.4 mg/ kg belantamab mafodotin IV infusion as powder for solution Q4W, infused over 30- 60 minutes on day 1 of 28-day cycles in combination with 100 mg nirogacestat BID on day 1, 4, 8 and 15 of 21-day cycles. Treatment was administered until disease progression, intolerable toxicity, informed consent withdrawal, the end of the sub-study or death.
    id
    OG004
    title
    DE Phase: 1.4 mg/kg Belantamab Mafodotin Q4W + Nirogacestat BID
param Type
NUMBER
population Description
Safety Population
reporting Status
POSTED
time Frame
Up to approximately 253 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