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NCT03544281 · OUTCOME

Time of Last Observed Quantifiable Concentration (Tlast) for Belantamab Mafodotin ADC, Treatment A

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, 0, 2 and 24 Hours Post-Dose on Cycle 1 Day 1 and Cycle 1 Day 4; Cycle 1 Day 8; Cycle 1 Day 11; Cycle 1 Day 15-21; Cycle 1 Day 29; pre-dose Cycle 2 Day 28

What was measured

Blood samples were collected at indicated timepoints 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.

Groups in this outcome

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

Participants with Relapsed or Refractory Multiple Myeloma (RRMM) received belantamab mafodotin as 1.9 milligram (mg)/kilogram (kg) dose on Day 1 of every alternate 28-day cycles (C1, C3, C5, C7 and so on) as a 30-60 minute infusion. Along with belantamab mafodotin, Lenalidomide (Len) was administered as 25 mg or 10 mg per oral (PO) on Days 1-21 of each 28-day cycle with 40 mg Dexamethasone (Dex) weekly PO/ intravenously (IV) on Days 1, 8, 15 and 22 of each cycle.

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

Participants with RRMM received belantamab mafodotin as SINGLE full dose of 1.9 mg/kg on Day 1 of every 28-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Lenalidomide was administered as 25 mg or 10 mg PO on Days 1-21 of each 28-day cycle with 40 mg Dexamethasone weekly PO/ IV on Days 1, 8, 15 and 22 of each cycle.

Main Study Phase: Belantamab Mafodotin 2.5mg/kg SPLIT + Len/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 dose on Day 1 and a 1.25 mg/kg dose on Day 8 of each 28-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Lenalidomide was administered as 25 mg or 10 mg PO on Days 1-21 of each 28-day cycle with 40 mg Dexamethasone weekly PO/ IV on Days 1, 8, 15 and 22 of each cycle.

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

Participants with RRMM received belantamab mafodotin as SINGLE full dose of 2.5 mg/kg on Day 1 of every 28-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Lenalidomide was administered as 25 mg or 10 mg PO on Days 1-21 of each 28-day cycle with 40 mg Dexamethasone weekly PO/ IV on Days 1, 8, 15 and 22 of each cycle.

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 1.9mg/kg STRETCH + Len/Dex12
Main Study Phase: Belantamab Mafodotin 1.9mg/kg SINGLE + Len/Dex4
Main Study Phase: Belantamab Mafodotin 2.5mg/kg SPLIT + Len/Dex13
Main Study Phase: Belantamab Mafodotin 2.5mg/kg SINGLE + Len/Dex16

Reported measurements

Source class 1
Values in Hour · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
Main Study Phase: Belantamab Mafodotin 1.9mg/kg STRETCH + Len/Dex181.467Not reported25.50698.22Not reported
Main Study Phase: Belantamab Mafodotin 1.9mg/kg SINGLE + Len/Dex685.608Not reported191.58697.75Not reported
Main Study Phase: Belantamab Mafodotin 2.5mg/kg SPLIT + Len/Dex674.833Not reported94.401273.75Not reported
Main Study Phase: Belantamab Mafodotin 2.5mg/kg SINGLE + Len/Dex671.717Not reported2.001342.83Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        25.50
        upper Limit
        698.22
        value
        181.467
      2. group Id
        OG001
        lower Limit
        191.58
        upper Limit
        697.75
        value
        685.608
      3. group Id
        OG002
        lower Limit
        94.40
        upper Limit
        1273.75
        value
        674.833
      4. group Id
        OG003
        lower Limit
        2.00
        upper Limit
        1342.83
        value
        671.717
denoms
  1. counts
    1. group Id
      OG000
      value
      12
    2. group Id
      OG001
      value
      4
    3. group Id
      OG002
      value
      13
    4. group Id
      OG003
      value
      16
    units
    Participants
description
Blood samples were collected at indicated timepoints 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 Relapsed or Refractory Multiple Myeloma (RRMM) received belantamab mafodotin as 1.9 milligram (mg)/kilogram (kg) dose on Day 1 of every alternate 28-day cycles (C1, C3, C5, C7 and so on) as a 30-60 minute infusion. Along with belantamab mafodotin, Lenalidomide (Len) was administered as 25 mg or 10 mg per oral (PO) on Days 1-21 of each 28-day cycle with 40 mg Dexamethasone (Dex) weekly PO/ intravenously (IV) on Days 1, 8, 15 and 22 of each cycle.
    id
    OG000
    title
    Main Study Phase: Belantamab Mafodotin 1.9mg/kg STRETCH + Len/Dex
  2. description
    Participants with RRMM received belantamab mafodotin as SINGLE full dose of 1.9 mg/kg on Day 1 of every 28-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Lenalidomide was administered as 25 mg or 10 mg PO on Days 1-21 of each 28-day cycle with 40 mg Dexamethasone weekly PO/ IV on Days 1, 8, 15 and 22 of each cycle.
    id
    OG001
    title
    Main Study Phase: Belantamab Mafodotin 1.9mg/kg SINGLE + Len/Dex
  3. 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 dose on Day 1 and a 1.25 mg/kg dose on Day 8 of each 28-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Lenalidomide was administered as 25 mg or 10 mg PO on Days 1-21 of each 28-day cycle with 40 mg Dexamethasone weekly PO/ IV on Days 1, 8, 15 and 22 of each cycle.
    id
    OG002
    title
    Main Study Phase: Belantamab Mafodotin 2.5mg/kg SPLIT + Len/Dex
  4. description
    Participants with RRMM received belantamab mafodotin as SINGLE full dose of 2.5 mg/kg on Day 1 of every 28-day cycle as a 30-60 minute infusion. Along with belantamab mafodotin, Lenalidomide was administered as 25 mg or 10 mg PO on Days 1-21 of each 28-day cycle with 40 mg Dexamethasone weekly PO/ IV on Days 1, 8, 15 and 22 of each cycle.
    id
    OG003
    title
    Main Study Phase: Belantamab Mafodotin 2.5mg/kg SINGLE + Len/Dex
param Type
MEDIAN
population Description
Pharmacokinetic (PK) population.
reporting Status
POSTED
time Frame
Pre-Dose, 0, 2 and 24 Hours Post-Dose on Cycle 1 Day 1 and Cycle 1 Day 4; Cycle 1 Day 8; Cycle 1 Day 11; Cycle 1 Day 15-21; Cycle 1 Day 29; pre-dose Cycle 2 Day 28
title
Time of Last Observed Quantifiable Concentration (Tlast) for Belantamab Mafodotin ADC, Treatment A
type
SECONDARY
unit Of Measure
Hour

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Preserved source evidence · Not medical advice