NCT07217119 · OUTCOME
DE Phase: Plasma Concentrations of Belantamab Mafodotin Cys- Monomethyl Auristatin-F (Cys-mcMMAF) 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 MEAN
Unit Picogram / millilitre (pg/mL)
Interval / dispersion Standard Deviation
Time frame Predose, EOI, 2 and 24 hours postdose on C1 D1, anytime sample at C1 D4, D8; Predose and EOI on D1 of C2, C4, C6, C9, C12; Predose on C18 D1; and at EoT (up to approximately 281 weeks) What was measured Blood samples were collected for PK analysis of belantamab mafodotin cys- monomethyl auristatin-F (cys-mcMMAF).
Analysis population: PK population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the Overall Number of Participants Analyzed field. 'Number Analyzed' signifies participants evaluable for the specified timepoints. The "0" participants analyzed represents that data was not collected for analysis at that particular time point for the respective Arms/Groups.
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
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 9 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 10 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Reported measurements C1 D1, PRE-DOSE Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 9 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 10 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported
C1 D1, END OF INFUSION Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 9 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 10 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 348.33 174.415 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 362.90 152.074 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 411.83 239.787 Not reported Not reported Not reported
C1 D1, 2 HOURS Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 9 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 10 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 397.67 219.583 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 439.60 151.680 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 575.33 386.115 Not reported Not reported Not reported
C1 D1, 24 HOURS Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 9 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 10 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1126.11 1529.405 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1059.60 861.657 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 917.67 439.953 Not reported Not reported Not reported
C1 D4, ANYTIME SAMPLE Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 8 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 10 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 313.38 102.131 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 645.00 434.713 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 628.50 147.267 Not reported Not reported Not reported
C1 D8, ANYTIME SAMPLE Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 8 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 10 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 116.49 38.063 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 196.92 57.691 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 247.50 66.768 Not reported Not reported Not reported
C2 D1, PRE-DOSE Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 8 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 9 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported
C2 D1, END OF INFUSION Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 7 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 8 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 295.14 84.044 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 386.75 212.491 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 368.67 360.003 Not reported Not reported Not reported
C4 D1, PRE-DOSE Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 3 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 4 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 3
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported
C4 D1, END OF INFUSION Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 3 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 4 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 3
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 513.67 321.674 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 362.00 136.936 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 367.67 145.308 Not reported Not reported Not reported
C6 D1, PRE-DOSE Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 3 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 3
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported
C6 D1, END OF INFUSION Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 3 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 3
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 435.00 106.066 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 318.33 40.857 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 504.67 604.086 Not reported Not reported Not reported
C9 D1, PRE-DOSE Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 3 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 2
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported
C9 D1, END OF INFUSION Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 3 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 2
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 207.50 21.920 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 455.00 310.066 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 392.00 229.103 Not reported Not reported Not reported
C12 D1, PRE-DOSE Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 1
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 0.00 NA Not reported Not reported SD is not applicable as only a single participant was analyzed. Mean value presented here is the actual concentration for this single participant.
C12 D1, END OF INFUSION Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 1
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 298.00 15.556 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 194.50 7.778 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 0.00 NA Not reported Not reported SD is not applicable as only a single participant was analyzed. Mean value presented here is the actual concentration for this single participant.
C18 C1, PRE-DOSE Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 0
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 NA Not reported Not reported SD is not applicable as only a single participant was analyzed. Mean value presented here is the actual concentration for this single participant. 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 NA Not reported Not reported SD is not applicable as only a single participant was analyzed. Mean value presented here is the actual concentration for this single participant.
EoT (up to ~ 281 weeks) Analysis denominator · Participants
Group Source count 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 5 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 5 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 3
Values in Picogram / millilitre (pg/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 77.60 116.055 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.00 0.000 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 110.33 191.103 Not reported Not reported Not reported
Complete source fields classes categories measurements
group Id OG000
spread 0.000
value 0.00
group Id OG001
spread 0.000
value 0.00
group Id OG002
spread 0.000
value 0.00 denoms counts
group Id OG000
value 9
group Id OG001
value 10
group Id OG002
value 6
units Participants
title C1 D1, PRE-DOSE categories measurements
group Id OG000
spread 174.415
value 348.33
group Id OG001
spread 152.074
value 362.90
group Id OG002
spread 239.787
value 411.83 denoms counts
group Id OG000
value 9
group Id OG001
value 10
group Id OG002
value 6
units Participants
title C1 D1, END OF INFUSION categories measurements
group Id OG000
spread 219.583
value 397.67
group Id OG001
spread 151.680
value 439.60
group Id OG002
spread 386.115
value 575.33 denoms counts
group Id OG000
value 9
group Id OG001
value 10
group Id OG002
value 6
units Participants
title C1 D1, 2 HOURS categories measurements
group Id OG000
spread 1529.405
value 1126.11
group Id OG001
spread 861.657
value 1059.60
group Id OG002
spread 439.953
value 917.67 denoms counts
group Id OG000
value 9
group Id OG001
value 10
group Id OG002
value 6
units Participants
title C1 D1, 24 HOURS categories measurements
group Id OG000
spread 102.131
value 313.38
group Id OG001
spread 434.713
value 645.00
group Id OG002
spread 147.267
value 628.50 denoms counts
group Id OG000
value 8
group Id OG001
value 10
group Id OG002
value 6
units Participants
title C1 D4, ANYTIME SAMPLE categories measurements
group Id OG000
spread 38.063
value 116.49
group Id OG001
spread 57.691
value 196.92
group Id OG002
spread 66.768
value 247.50 denoms counts
group Id OG000
value 8
group Id OG001
value 10
group Id OG002
value 6
units Participants
title C1 D8, ANYTIME SAMPLE categories measurements
group Id OG000
spread 0.000
value 0.00
group Id OG001
spread 0.000
value 0.00
group Id OG002
spread 0.000
value 0.00 denoms counts
group Id OG000
value 8
group Id OG001
value 9
group Id OG002
value 6
units Participants
title C2 D1, PRE-DOSE categories measurements
group Id OG000
spread 84.044
value 295.14
group Id OG001
spread 212.491
value 386.75
group Id OG002
spread 360.003
value 368.67 denoms counts
group Id OG000
value 7
group Id OG001
value 8
group Id OG002
value 6
units Participants
title C2 D1, END OF INFUSION categories measurements
group Id OG000
spread 0.000
value 0.00
group Id OG001
spread 0.000
value 0.00
group Id OG002
spread 0.000
value 0.00 denoms counts
group Id OG000
value 3
group Id OG001
value 4
group Id OG002
value 3
units Participants
title C4 D1, PRE-DOSE categories measurements
group Id OG000
spread 321.674
value 513.67
group Id OG001
spread 136.936
value 362.00
group Id OG002
spread 145.308
value 367.67 denoms counts
group Id OG000
value 3
group Id OG001
value 4
group Id OG002
value 3
units Participants
title C4 D1, END OF INFUSION categories measurements
group Id OG000
spread 0.000
value 0.00
group Id OG001
spread 0.000
value 0.00
group Id OG002
spread 0.000
value 0.00 denoms counts
group Id OG000
value 2
group Id OG001
value 3
group Id OG002
value 3
units Participants
title C6 D1, PRE-DOSE categories measurements
group Id OG000
spread 106.066
value 435.00
group Id OG001
spread 40.857
value 318.33
group Id OG002
spread 604.086
value 504.67 denoms counts
group Id OG000
value 2
group Id OG001
value 3
group Id OG002
value 3
units Participants
title C6 D1, END OF INFUSION Show more (12 of 18) denoms counts
group Id OG000
value 9
group Id OG001
value 10
group Id OG002
value 6
units Participants
description Blood samples were collected for PK analysis of belantamab mafodotin cys- monomethyl auristatin-F (cys-mcMMAF).
dispersion Type Standard Deviation groups
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
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
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 MEAN
population Description PK population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the Overall Number of Participants Analyzed field. 'Number Analyzed' signifies participants evaluable for the specified timepoints. The "0" participants analyzed represents that data was not collected for analysis at that particular time point for the respective Arms/Groups.
reporting Status POSTED
time Frame Predose, EOI, 2 and 24 hours postdose on C1 D1, anytime sample at C1 D4, D8; Predose and EOI on D1 of C2, C4, C6, C9, C12; Predose on C18 D1; and at EoT (up to approximately 281 weeks)
title DE Phase: Plasma Concentrations of Belantamab Mafodotin Cys- Monomethyl Auristatin-F (Cys-mcMMAF)
type SECONDARY
unit Of Measure Picogram / millilitre (pg/mL) Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f
Preserved source evidence · Not medical advice