NCT07217119 · OUTCOME
DE Phase: Feladilimab Concentration When Administered in Combination With Belantamab Mafodotin 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 ng/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 Feladilimab when administered intravenously in combination with belantamab mafodotin.
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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.0 0.00 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 0.0 0.00 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 0.0 0.00 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 7 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 10 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1705.3 684.19 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1938.3 687.81 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 5797.5 3013.48 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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1516.9 604.62 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1682.0 513.07 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 5758.0 2782.99 Not reported Not reported Not reported
C1 D1, 2-4 HOURS 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 5
Values in ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1914.4 849.74 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2018.5 671.16 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 5850.6 1393.26 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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1091.1 502.26 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1236.8 432.22 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 4739.2 1544.46 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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 876.6 438.91 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 981.4 374.22 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 3694.7 1623.62 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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 499.8 303.58 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 471.3 187.95 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 2378.0 1084.60 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 8 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 8 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2407.1 1005.90 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2365.1 1099.94 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 7489.0 3799.51 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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1046.7 245.62 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 827.0 281.32 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 2799.7 1630.91 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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1784.0 1373.86 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2777.5 1130.40 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 4573.0 4594.49 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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1125.5 324.56 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 798.0 557.71 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 2995.0 1194.20 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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2148.5 1075.51 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 2985.7 794.72 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 7097.7 2374.84 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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 750.0 1060.66 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 643.7 188.34 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 2963.0 1158.24 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 1 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 3 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 2
Values in ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1405.0 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 2298.3 559.96 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 7779.0 2736.50 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 0
Values in ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 791.0 907.93 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 357.0 504.87 Not reported Not reported Not reported
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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1901.0 2479.12 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 1982.0 192.33 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 7859.0 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 D1, 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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 877.0 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 774.0 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 ng/mL · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 714.6 435.71 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 540.2 139.23 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 5330.0 6407.23 Not reported Not reported Not reported
Complete source fields classes categories measurements
group Id OG000
spread 0.00
value 0.0
group Id OG001
spread 0.00
value 0.0
group Id OG002
spread 0.00
value 0.0 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 684.19
value 1705.3
group Id OG001
spread 687.81
value 1938.3
group Id OG002
spread 3013.48
value 5797.5 denoms counts
group Id OG000
value 7
group Id OG001
value 10
group Id OG002
value 6
units Participants
title C1 D1, END OF INFUSION categories measurements
group Id OG000
spread 604.62
value 1516.9
group Id OG001
spread 513.07
value 1682.0
group Id OG002
spread 2782.99
value 5758.0 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 849.74
value 1914.4
group Id OG001
spread 671.16
value 2018.5
group Id OG002
spread 1393.26
value 5850.6 denoms counts
group Id OG000
value 8
group Id OG001
value 10
group Id OG002
value 5
units Participants
title C1 D1, 2-4 HOURS categories measurements
group Id OG000
spread 502.26
value 1091.1
group Id OG001
spread 432.22
value 1236.8
group Id OG002
spread 1544.46
value 4739.2 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 438.91
value 876.6
group Id OG001
spread 374.22
value 981.4
group Id OG002
spread 1623.62
value 3694.7 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 303.58
value 499.8
group Id OG001
spread 187.95
value 471.3
group Id OG002
spread 1084.60
value 2378.0 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 1005.90
value 2407.1
group Id OG001
spread 1099.94
value 2365.1
group Id OG002
spread 3799.51
value 7489.0 denoms counts
group Id OG000
value 8
group Id OG001
value 8
group Id OG002
value 6
units Participants
title C2 D1, END OF INFUSION categories measurements
group Id OG000
spread 245.62
value 1046.7
group Id OG001
spread 281.32
value 827.0
group Id OG002
spread 1630.91
value 2799.7 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 1373.86
value 1784.0
group Id OG001
spread 1130.40
value 2777.5
group Id OG002
spread 4594.49
value 4573.0 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 324.56
value 1125.5
group Id OG001
spread 557.71
value 798.0
group Id OG002
spread 1194.20
value 2995.0 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 1075.51
value 2148.5
group Id OG001
spread 794.72
value 2985.7
group Id OG002
spread 2374.84
value 7097.7 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 Feladilimab when administered intravenously in combination with belantamab mafodotin.
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: Feladilimab Concentration When Administered in Combination With Belantamab Mafodotin
type SECONDARY
unit Of Measure ng/mL Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f
Preserved source evidence · Not medical advice