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NCT05405166 · OUTCOME

Number of Participants With Treatment-emergent Anti-drug Antibodies (ADA) Against Isatuximab

SC Versus IV Isatuximab in Combination With Pomalidomide and Dexamethasone in RRMM · Source last updated 2026-09-02

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

Measure
COUNT_OF_PARTICIPANTS
Unit
Participants
Interval / dispersion
Not reported
Time frame
From first dose of study medication administration (Day 1) up to DCO date (29-Aug-2025), approximately 38 months

What was measured

A participant with treatment-emergent ADA was a participant with at least 1 treatment induced or treatment boosted ADA at any time during the treatment or follow-up observation period. Treatment-induced ADA was defined as ADAs developed de novo (seroconversion) following administration of the biotherapeutic (ie, formation of ADAs any time after the initial study medication administration in a participant without pre-existing ADAs). Treatment-boosted ADA was defined as pre-existing ADAs that were boosted to a higher level following administration of biotherapeutic (ie, any time after the initial study medication administration) the ADA titer was significantly higher than the baseline titer. Number of participants with treatment-emergent ADAs is presented.

Analysis population: The ADA population included all participants from safety population with at least 1 ADA result (negative, positive or inconclusive) post-baseline.

Groups in this outcome

Isa-IV + Pd

Participants received isatuximab 10 mg/kg IV infusion QW (i.e. on Days 1, 8, 15 and 22) in Cycle 1 (28 days) and then 10 mg/kg Q2W (i.e. on Days 1 and 15) of each subsequent 28-day cycle along with pomalidomide 4 mg orally on Days 1 to 21 of each 28-day cycle and dexamethasone 40 mg (or 20 mg for participant \>=75 years) orally on Days 1, 8, 15, and 22 of each cycle until disease progression, unacceptable AEs, participant request to discontinue treatment, or any other reason, whichever came first.

Isa-SC + Pd

Participants received isatuximab 1400 mg SC injection administered via an OBDS which is an investigational device injector QW (i.e on Days 1, 8, 15 and 22) in Cycle 1 (28 days) and then 1400 mg Q2W (i.e. on Days 1 and 15) of each subsequent 28-day cycle along with pomalidomide 4 mg orally on Days 1 to 21 of each 28-day cycle and dexamethasone 40 mg (or 20 mg for participant \>=75 years) orally on Days 1, 8, 15, and 22 of each cycle until disease progression, unacceptable AEs, participant request to discontinue treatment, or any other reason, whichever came first.

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

Analysis denominator · Participants

GroupSource count
Isa-IV + Pd255
Isa-SC + Pd255

Reported measurements

Source class 1
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Isa-IV + Pd29Not reportedNot reportedNot reportedNot reported
Isa-SC + Pd18Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        29
      2. group Id
        OG001
        value
        18
denoms
  1. counts
    1. group Id
      OG000
      value
      255
    2. group Id
      OG001
      value
      255
    units
    Participants
description
A participant with treatment-emergent ADA was a participant with at least 1 treatment induced or treatment boosted ADA at any time during the treatment or follow-up observation period. Treatment-induced ADA was defined as ADAs developed de novo (seroconversion) following administration of the biotherapeutic (ie, formation of ADAs any time after the initial study medication administration in a participant without pre-existing ADAs). Treatment-boosted ADA was defined as pre-existing ADAs that were boosted to a higher level following administration of biotherapeutic (ie, any time after the initial study medication administration) the ADA titer was significantly higher than the baseline titer. Number of participants with treatment-emergent ADAs is presented.
groups
  1. description
    Participants received isatuximab 10 mg/kg IV infusion QW (i.e. on Days 1, 8, 15 and 22) in Cycle 1 (28 days) and then 10 mg/kg Q2W (i.e. on Days 1 and 15) of each subsequent 28-day cycle along with pomalidomide 4 mg orally on Days 1 to 21 of each 28-day cycle and dexamethasone 40 mg (or 20 mg for participant \>=75 years) orally on Days 1, 8, 15, and 22 of each cycle until disease progression, unacceptable AEs, participant request to discontinue treatment, or any other reason, whichever came first.
    id
    OG000
    title
    Isa-IV + Pd
  2. description
    Participants received isatuximab 1400 mg SC injection administered via an OBDS which is an investigational device injector QW (i.e on Days 1, 8, 15 and 22) in Cycle 1 (28 days) and then 1400 mg Q2W (i.e. on Days 1 and 15) of each subsequent 28-day cycle along with pomalidomide 4 mg orally on Days 1 to 21 of each 28-day cycle and dexamethasone 40 mg (or 20 mg for participant \>=75 years) orally on Days 1, 8, 15, and 22 of each cycle until disease progression, unacceptable AEs, participant request to discontinue treatment, or any other reason, whichever came first.
    id
    OG001
    title
    Isa-SC + Pd
param Type
COUNT_OF_PARTICIPANTS
population Description
The ADA population included all participants from safety population with at least 1 ADA result (negative, positive or inconclusive) post-baseline.
reporting Status
POSTED
time Frame
From first dose of study medication administration (Day 1) up to DCO date (29-Aug-2025), approximately 38 months
title
Number of Participants With Treatment-emergent Anti-drug Antibodies (ADA) Against Isatuximab
type
SECONDARY
unit Of Measure
Participants

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice