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NCT03544281 · OUTCOME

Tlast for Belantamab Mafodotin (Cys-mcMMAF), Treatment B

To Evaluate Safety, Tolerability, and Clinical Activity of the Antibody-drug Conjugate, GSK2857916 Administered in Combination With Lenalidomide Plus Dexamethasone (Arm A), or in Combination With Bortezomib Plus Dexamethasone (Arm B) in Participants With Relapsed/Refractory Multiple Myeloma (RRMM) · Source last updated 2025-03-18

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
MEDIAN
Unit
Hour
Interval / dispersion
Full Range
Time frame
Pre-Dose Cycle 1 Day 1 to pre-dose Cycle 2 Day 1

What was measured

Blood samples were collected for PK analysis. PK parameter was determined using standard non-compartmental methods. Tlast is the time of last observed quantifiable concentration of belantamab mafodotin in Cycle 1 which extended beyond protocol defined duration for some participants across treatment groups.

Analysis population: Pharmacokinetic (PK) population. Only those participants with data available at specified time points have been analyzed.

Groups in this outcome

Main Study Phase: Belantamab Mafodotin 1.9 mg/kg STRETCH + Bor/Dex

Participants with RRMM received belantamab mafodotin as 1.9 mg/kg dose on Day 1 of every alternate 21-day cycle (C1, C3, C5, C7, and so on) as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib (Bor) was administered as 1.3 milligrams per square meters (mg/m\^2) subcutaneously (SC) /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone (Dex) PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.

Main Study Phase: Belantamab Mafodotin 1.9 mg/kg SINGLE + Bor/Dex

Participants with RRMM received belantamab mafodotin as SINGLE full dose of 1.9 mg/kg on Day 1 of every 21-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.

Main Study Phase: Belantamab Mafodotin 2.5 mg/kg Step-Down STRETCH+ Bor/Dex

Participants with RRMM received belantamab mafodotin as 2.5 mg/kg dose on cycle 1 day 1 (C1D1) followed by 1.9 mg/kg step-down dose on Day 1 of every alternate 21-day cycles C3 onwards (C3, C5, C7, and so on) as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.

Main Study Phase: Belantamab Mafodotin 2.5 mg/kg STRETCH + Bor/Dex

Participants with RRMM received belantamab mafodotin as 2.5 mg/kg dose on Day 1 of every alternate 21-day cycles (C1, C3, C5, C7, and so on) as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.

Main Study Phase: Belantamab Mafodotin 2.5 mg/kg SPLIT + Bor/Dex

Participants with RRMM received belantamab mafodotin as two equal divided doses of a total 2.5mg/kg dose as a 1.25 mg/kg on Day 1 and 1.25 mg/kg dose on Day 8 of every 21-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.

Main Study Phase: Belantamab Mafodotin 2.5 mg/kg SINGLE + Bor/Dex

Participants with RRMM received belantamab mafodotin as SINGLE full dose of 2.5 mg/kg on Day 1 of every 21-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.

Main Study Phase: Belantamab Mafodotin 3.4 mg/kg SPLIT + Bor/Dex

Participants with RRMM received belantamab mafodotin as two equal divided doses of a total 3.4 mg/kg dose as a 1.7 mg/kg dose on Day 1 and 1.7 mg/kg on Day 8 of every 21-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.

Main Study Phase: Belantamab Mafodotin 3.4 mg/kg SINGLE + Bor/Dex

Participants with RRMM received belantamab mafodotin as SINGLE full dose of 3.4 mg/kg on Day 1 of every 21-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.

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

Analysis denominator · Participants

GroupSource count
Main Study Phase: Belantamab Mafodotin 1.9 mg/kg STRETCH + Bor/Dex12
Main Study Phase: Belantamab Mafodotin 1.9 mg/kg SINGLE + Bor/Dex12
Main Study Phase: Belantamab Mafodotin 2.5 mg/kg Step-Down STRETCH+ Bor/Dex12
Main Study Phase: Belantamab Mafodotin 2.5 mg/kg STRETCH + Bor/Dex12
Main Study Phase: Belantamab Mafodotin 2.5 mg/kg SPLIT + Bor/Dex13
Main Study Phase: Belantamab Mafodotin 2.5 mg/kg SINGLE + Bor/Dex18
Main Study Phase: Belantamab Mafodotin 3.4 mg/kg SPLIT + Bor/Dex12
Main Study Phase: Belantamab Mafodotin 3.4 mg/kg SINGLE + Bor/Dex16

Reported measurements

Source class 1
Values in Hour · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
Main Study Phase: Belantamab Mafodotin 1.9 mg/kg STRETCH + Bor/Dex85.542Not reported68.57262.25Not reported
Main Study Phase: Belantamab Mafodotin 1.9 mg/kg SINGLE + Bor/Dex239.800Not reported72.33243.90Not reported
Main Study Phase: Belantamab Mafodotin 2.5 mg/kg Step-Down STRETCH+ Bor/Dex237.992Not reported70.58265.82Not reported
Main Study Phase: Belantamab Mafodotin 2.5 mg/kg STRETCH + Bor/Dex93.942Not reported67.95242.77Not reported
Main Study Phase: Belantamab Mafodotin 2.5 mg/kg SPLIT + Bor/Dex241.283Not reported146.33527.50Not reported
Main Study Phase: Belantamab Mafodotin 2.5 mg/kg SINGLE + Bor/Dex237.425Not reported70.53241.58Not reported
Main Study Phase: Belantamab Mafodotin 3.4 mg/kg SPLIT + Bor/Dex240.675Not reported237.55503.73Not reported
Main Study Phase: Belantamab Mafodotin 3.4 mg/kg SINGLE + Bor/Dex171.567Not reported2.00266.87Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        68.57
        upper Limit
        262.25
        value
        85.542
      2. group Id
        OG001
        lower Limit
        72.33
        upper Limit
        243.90
        value
        239.800
      3. group Id
        OG002
        lower Limit
        70.58
        upper Limit
        265.82
        value
        237.992
      4. group Id
        OG003
        lower Limit
        67.95
        upper Limit
        242.77
        value
        93.942
      5. group Id
        OG004
        lower Limit
        146.33
        upper Limit
        527.50
        value
        241.283
      6. group Id
        OG005
        lower Limit
        70.53
        upper Limit
        241.58
        value
        237.425
      7. group Id
        OG006
        lower Limit
        237.55
        upper Limit
        503.73
        value
        240.675
      8. group Id
        OG007
        lower Limit
        2.00
        upper Limit
        266.87
        value
        171.567
denoms
  1. counts
    1. group Id
      OG000
      value
      12
    2. group Id
      OG001
      value
      12
    3. group Id
      OG002
      value
      12
    4. group Id
      OG003
      value
      12
    5. group Id
      OG004
      value
      13
    6. group Id
      OG005
      value
      18
    7. group Id
      OG006
      value
      12
    8. group Id
      OG007
      value
      16
    units
    Participants
description
Blood samples were collected for PK analysis. PK parameter was determined using standard non-compartmental methods. Tlast is the time of last observed quantifiable concentration of belantamab mafodotin in Cycle 1 which extended beyond protocol defined duration for some participants across treatment groups.
dispersion Type
Full Range
groups
  1. description
    Participants with RRMM received belantamab mafodotin as 1.9 mg/kg dose on Day 1 of every alternate 21-day cycle (C1, C3, C5, C7, and so on) as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib (Bor) was administered as 1.3 milligrams per square meters (mg/m\^2) subcutaneously (SC) /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone (Dex) PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.
    id
    OG000
    title
    Main Study Phase: Belantamab Mafodotin 1.9 mg/kg STRETCH + Bor/Dex
  2. description
    Participants with RRMM received belantamab mafodotin as SINGLE full dose of 1.9 mg/kg on Day 1 of every 21-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.
    id
    OG001
    title
    Main Study Phase: Belantamab Mafodotin 1.9 mg/kg SINGLE + Bor/Dex
  3. description
    Participants with RRMM received belantamab mafodotin as 2.5 mg/kg dose on cycle 1 day 1 (C1D1) followed by 1.9 mg/kg step-down dose on Day 1 of every alternate 21-day cycles C3 onwards (C3, C5, C7, and so on) as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.
    id
    OG002
    title
    Main Study Phase: Belantamab Mafodotin 2.5 mg/kg Step-Down STRETCH+ Bor/Dex
  4. description
    Participants with RRMM received belantamab mafodotin as 2.5 mg/kg dose on Day 1 of every alternate 21-day cycles (C1, C3, C5, C7, and so on) as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.
    id
    OG003
    title
    Main Study Phase: Belantamab Mafodotin 2.5 mg/kg STRETCH + Bor/Dex
  5. description
    Participants with RRMM received belantamab mafodotin as two equal divided doses of a total 2.5mg/kg dose as a 1.25 mg/kg on Day 1 and 1.25 mg/kg dose on Day 8 of every 21-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.
    id
    OG004
    title
    Main Study Phase: Belantamab Mafodotin 2.5 mg/kg SPLIT + Bor/Dex
  6. description
    Participants with RRMM received belantamab mafodotin as SINGLE full dose of 2.5 mg/kg on Day 1 of every 21-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.
    id
    OG005
    title
    Main Study Phase: Belantamab Mafodotin 2.5 mg/kg SINGLE + Bor/Dex
  7. description
    Participants with RRMM received belantamab mafodotin as two equal divided doses of a total 3.4 mg/kg dose as a 1.7 mg/kg dose on Day 1 and 1.7 mg/kg on Day 8 of every 21-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.
    id
    OG006
    title
    Main Study Phase: Belantamab Mafodotin 3.4 mg/kg SPLIT + Bor/Dex
  8. description
    Participants with RRMM received belantamab mafodotin as SINGLE full dose of 3.4 mg/kg on Day 1 of every 21-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Bortezomib was administered as 1.3 mg/m\^2 SC /IV on Days 1, 4, 8, and 11 with 20 mg Dexamethasone PO/IV on Days 1, 2, 4, 5, 8, 9, 11, and 12 of every 21-day cycle up to 8 cycles.
    id
    OG007
    title
    Main Study Phase: Belantamab Mafodotin 3.4 mg/kg SINGLE + Bor/Dex
param Type
MEDIAN
population Description
Pharmacokinetic (PK) population. Only those participants with data available at specified time points have been analyzed.
reporting Status
POSTED
time Frame
Pre-Dose Cycle 1 Day 1 to pre-dose Cycle 2 Day 1
title
Tlast for Belantamab Mafodotin (Cys-mcMMAF), Treatment B
type
SECONDARY
unit Of Measure
Hour

Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f

Preserved source evidence · Not medical advice