NCT07217119 · OUTCOME
DE Phase: Plasma Concentration of Belantamab Mafodotin Total Antibody 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 Nanogram/ millilitre (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 Belantamab mafodotin total antibody.
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 4 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 5 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 4
Values in Nanogram/ millilitre (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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 31985.7 9190.29 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 50220.0 10478.63 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 47283.3 9736.00 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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 31333.3 8256.97 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 48970.0 11250.09 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 47300.0 12637.25 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 7 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 10 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 23342.9 5629.64 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 34950.0 9689.77 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 37700.0 10519.32 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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 16672.5 6065.01 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 22250.0 8853.78 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 26950.0 6100.41 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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 12197.5 4290.74 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 15358.0 7106.24 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 18690.0 8274.19 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 7 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 8 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 6
Values in Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 5920.0 2982.95 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 5921.3 3611.93 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 10561.7 5024.85 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 5
Values in Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 39028.6 10166.40 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 50425.0 13992.93 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 60320.0 19478.63 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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 13463.3 6636.79 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 14532.5 8186.51 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 18190.0 14219.43 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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 75333.3 37026.66 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 55975.0 16597.46 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 68500.0 21672.33 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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 14450.0 2474.87 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 13576.7 10349.14 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 15026.7 4452.43 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 2
Values in Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 45150.0 6858.94 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 62666.7 16740.77 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 62450.0 15202.80 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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 14300.0 141.42 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 23533.3 14117.13 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 8980.0 7099.35 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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 47250.0 9828.78 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 62100.0 16721.54 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 75700.0 6929.65 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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 8165.0 3726.45 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 15850.0 20718.23 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 15000.0 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.
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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 43250.0 14354.27 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 54400.0 25031.58 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 53800.0 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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 8180.0 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 34500.0 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 Nanogram/ millilitre (ng/mL) · Interval/dispersion: Standard Deviation Group Value Spread Lower Upper Comment 1.9 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 11052.0 6119.81 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 8 mg Feladilimab 8862.0 11401.80 Not reported Not reported Not reported 2.5 mg/kg Belantamab Mafodotin + 24 mg Feladilimab 15643.3 15040.13 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 4
group Id OG001
value 5
group Id OG002
value 4
units Participants
title C1 D1, PRE-DOSE categories measurements
group Id OG000
spread 9190.29
value 31985.7
group Id OG001
spread 10478.63
value 50220.0
group Id OG002
spread 9736.00
value 47283.3 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 8256.97
value 31333.3
group Id OG001
spread 11250.09
value 48970.0
group Id OG002
spread 12637.25
value 47300.0 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 5629.64
value 23342.9
group Id OG001
spread 9689.77
value 34950.0
group Id OG002
spread 10519.32
value 37700.0 denoms counts
group Id OG000
value 7
group Id OG001
value 10
group Id OG002
value 6
units Participants
title C1 D1, 24 HOURS categories measurements
group Id OG000
spread 6065.01
value 16672.5
group Id OG001
spread 8853.78
value 22250.0
group Id OG002
spread 6100.41
value 26950.0 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 4290.74
value 12197.5
group Id OG001
spread 7106.24
value 15358.0
group Id OG002
spread 8274.19
value 18690.0 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 2982.95
value 5920.0
group Id OG001
spread 3611.93
value 5921.3
group Id OG002
spread 5024.85
value 10561.7 denoms counts
group Id OG000
value 7
group Id OG001
value 8
group Id OG002
value 6
units Participants
title C2 D1, PRE-DOSE categories measurements
group Id OG000
spread 10166.40
value 39028.6
group Id OG001
spread 13992.93
value 50425.0
group Id OG002
spread 19478.63
value 60320.0 denoms counts
group Id OG000
value 7
group Id OG001
value 8
group Id OG002
value 5
units Participants
title C2 D1, END OF INFUSION categories measurements
group Id OG000
spread 6636.79
value 13463.3
group Id OG001
spread 8186.51
value 14532.5
group Id OG002
spread 14219.43
value 18190.0 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 37026.66
value 75333.3
group Id OG001
spread 16597.46
value 55975.0
group Id OG002
spread 21672.33
value 68500.0 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 2474.87
value 14450.0
group Id OG001
spread 10349.14
value 13576.7
group Id OG002
spread 4452.43
value 15026.7 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 6858.94
value 45150.0
group Id OG001
spread 16740.77
value 62666.7
group Id OG002
spread 15202.80
value 62450.0 denoms counts
group Id OG000
value 2
group Id OG001
value 3
group Id OG002
value 2
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 total antibody.
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 Concentration of Belantamab Mafodotin Total Antibody
type SECONDARY
unit Of Measure Nanogram/ millilitre (ng/mL) Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f
Preserved source evidence · Not medical advice