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NCT03215030 · OUTCOME

Part 3: Clinical Benefit Rate (CBR) by IRC and Investigator Assessment

A Study of Modakafusp Alfa on Adult Participants With Relapsed/Refractory Multiple Myeloma · Source last updated 2026-01-29

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

Measure
NUMBER
Unit
percentage of participants
Interval / dispersion
95% Confidence Interval
Time frame
Up to 20.5 months in Part 3

What was measured

The CBR was defined as the percentage of participants with a confirmed response of sCR, CR, VGPR, PR, or minimal response (MR) during the study per investigator assessment as defined by IMWG Uniform Response Criteria. PR: ≥50% reduction of serum M-protein and reduction in 24-hour urinary M-protein by ≥90% or to \<200 mg/24 hours. CR: negative immunofixation of serum and urine, disappearance of any soft tissue plasmacytomas, and \<5% plasma cells in bone marrow. sCR: CR+normal FLC ratio and absence of clonal cells in bone marrow biopsy by immunohistochemistry. VGPR: serum and urine M-protein detectable by immunofixation but not on electrophoresis, or ≥90% reduction in serum M-protein plus urine M-protein \<100 mg/24 hours. MR: ≥25% but ≤49% reduction of serum M-protein and reduction in 24-hour urine M-protein by 50% to 89%. Percentages were rounded off to the nearest decimal.

Analysis population: The FAS included all participants who received at least 1 dose, even an incomplete dose, of modakafusp alfa, in the Part 3 extension cohorts.

Groups in this outcome

Part 3 (Dose Extension): Modakafusp Alfa 120 mg

Participants received modakafusp alfa 120 mg, infusion, IV, Q4W, for each 28-day treatment cycle until disease progression or treatment discontinuation.

Part 3 (Dose Extension): Modakafusp Alfa 240 mg

Participants received modakafusp alfa 240 mg, infusion, IV, Q4W, for each 28-day treatment cycle until disease progression or treatment discontinuation.

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

Analysis denominator · Participants

GroupSource count
Part 3 (Dose Extension): Modakafusp Alfa 120 mg71
Part 3 (Dose Extension): Modakafusp Alfa 240 mg75

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Part 3 (Dose Extension): Modakafusp Alfa 120 mg38.0Not reported26.7650.33Not reported
Part 3 (Dose Extension): Modakafusp Alfa 240 mg48.0Not reported36.3159.85Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        26.76
        upper Limit
        50.33
        value
        38.0
      2. group Id
        OG001
        lower Limit
        36.31
        upper Limit
        59.85
        value
        48.0
denoms
  1. counts
    1. group Id
      OG000
      value
      71
    2. group Id
      OG001
      value
      75
    units
    Participants
description
The CBR was defined as the percentage of participants with a confirmed response of sCR, CR, VGPR, PR, or minimal response (MR) during the study per investigator assessment as defined by IMWG Uniform Response Criteria. PR: ≥50% reduction of serum M-protein and reduction in 24-hour urinary M-protein by ≥90% or to \<200 mg/24 hours. CR: negative immunofixation of serum and urine, disappearance of any soft tissue plasmacytomas, and \<5% plasma cells in bone marrow. sCR: CR+normal FLC ratio and absence of clonal cells in bone marrow biopsy by immunohistochemistry. VGPR: serum and urine M-protein detectable by immunofixation but not on electrophoresis, or ≥90% reduction in serum M-protein plus urine M-protein \<100 mg/24 hours. MR: ≥25% but ≤49% reduction of serum M-protein and reduction in 24-hour urine M-protein by 50% to 89%. Percentages were rounded off to the nearest decimal.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received modakafusp alfa 120 mg, infusion, IV, Q4W, for each 28-day treatment cycle until disease progression or treatment discontinuation.
    id
    OG000
    title
    Part 3 (Dose Extension): Modakafusp Alfa 120 mg
  2. description
    Participants received modakafusp alfa 240 mg, infusion, IV, Q4W, for each 28-day treatment cycle until disease progression or treatment discontinuation.
    id
    OG001
    title
    Part 3 (Dose Extension): Modakafusp Alfa 240 mg
param Type
NUMBER
population Description
The FAS included all participants who received at least 1 dose, even an incomplete dose, of modakafusp alfa, in the Part 3 extension cohorts.
reporting Status
POSTED
time Frame
Up to 20.5 months in Part 3
title
Part 3: Clinical Benefit Rate (CBR) by IRC and Investigator Assessment
type
SECONDARY
unit Of Measure
percentage of participants

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

Preserved source evidence · Not medical advice